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Commit | Line | Data |
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ed3baad1 PMD |
1 | /* |
2 | * ARM generic helpers. | |
3 | * | |
4 | * This code is licensed under the GNU GPL v2 or later. | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0-or-later | |
7 | */ | |
db725815 | 8 | |
74c21bd0 | 9 | #include "qemu/osdep.h" |
cd617484 | 10 | #include "qemu/log.h" |
194cbc49 | 11 | #include "trace.h" |
b5ff1b31 | 12 | #include "cpu.h" |
ccd38087 | 13 | #include "internals.h" |
2ef6175a | 14 | #include "exec/helper-proto.h" |
db725815 | 15 | #include "qemu/main-loop.h" |
b8012ecf | 16 | #include "qemu/timer.h" |
1de7afc9 | 17 | #include "qemu/bitops.h" |
eb0ecd5a | 18 | #include "qemu/crc32c.h" |
0442428a | 19 | #include "qemu/qemu-print.h" |
63c91552 | 20 | #include "exec/exec-all.h" |
eb0ecd5a | 21 | #include <zlib.h> /* For crc32 */ |
64552b6b | 22 | #include "hw/irq.h" |
740b1759 | 23 | #include "sysemu/cpu-timers.h" |
f3a9b694 | 24 | #include "sysemu/kvm.h" |
7f7b4e7a | 25 | #include "qapi/qapi-commands-machine-target.h" |
de390645 RH |
26 | #include "qapi/error.h" |
27 | #include "qemu/guest-random.h" | |
91f78c58 | 28 | #ifdef CONFIG_TCG |
6b5fe137 | 29 | #include "semihosting/common-semi.h" |
91f78c58 | 30 | #endif |
cf7c6d10 | 31 | #include "cpregs.h" |
0b03bdfc | 32 | |
352c98e5 LV |
33 | #define ARM_CPU_FREQ 1000000000 /* FIXME: 1 GHz, should be configurable */ |
34 | ||
affdb64d PM |
35 | static void switch_mode(CPUARMState *env, int mode); |
36 | ||
c4241c7d | 37 | static uint64_t raw_read(CPUARMState *env, const ARMCPRegInfo *ri) |
d4e6df63 | 38 | { |
375421cc | 39 | assert(ri->fieldoffset); |
67ed771d | 40 | if (cpreg_field_is_64bit(ri)) { |
c4241c7d | 41 | return CPREG_FIELD64(env, ri); |
22d9e1a9 | 42 | } else { |
c4241c7d | 43 | return CPREG_FIELD32(env, ri); |
22d9e1a9 | 44 | } |
d4e6df63 PM |
45 | } |
46 | ||
f43ee493 | 47 | void raw_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
d4e6df63 | 48 | { |
375421cc | 49 | assert(ri->fieldoffset); |
67ed771d | 50 | if (cpreg_field_is_64bit(ri)) { |
22d9e1a9 PM |
51 | CPREG_FIELD64(env, ri) = value; |
52 | } else { | |
53 | CPREG_FIELD32(env, ri) = value; | |
54 | } | |
d4e6df63 PM |
55 | } |
56 | ||
11f136ee FA |
57 | static void *raw_ptr(CPUARMState *env, const ARMCPRegInfo *ri) |
58 | { | |
59 | return (char *)env + ri->fieldoffset; | |
60 | } | |
61 | ||
49a66191 | 62 | uint64_t read_raw_cp_reg(CPUARMState *env, const ARMCPRegInfo *ri) |
721fae12 | 63 | { |
59a1c327 | 64 | /* Raw read of a coprocessor register (as needed for migration, etc). */ |
721fae12 | 65 | if (ri->type & ARM_CP_CONST) { |
59a1c327 | 66 | return ri->resetvalue; |
721fae12 | 67 | } else if (ri->raw_readfn) { |
59a1c327 | 68 | return ri->raw_readfn(env, ri); |
721fae12 | 69 | } else if (ri->readfn) { |
59a1c327 | 70 | return ri->readfn(env, ri); |
721fae12 | 71 | } else { |
59a1c327 | 72 | return raw_read(env, ri); |
721fae12 | 73 | } |
721fae12 PM |
74 | } |
75 | ||
59a1c327 | 76 | static void write_raw_cp_reg(CPUARMState *env, const ARMCPRegInfo *ri, |
7900e9f1 | 77 | uint64_t v) |
721fae12 | 78 | { |
9b37a28c FR |
79 | /* |
80 | * Raw write of a coprocessor register (as needed for migration, etc). | |
721fae12 PM |
81 | * Note that constant registers are treated as write-ignored; the |
82 | * caller should check for success by whether a readback gives the | |
83 | * value written. | |
84 | */ | |
85 | if (ri->type & ARM_CP_CONST) { | |
59a1c327 | 86 | return; |
721fae12 | 87 | } else if (ri->raw_writefn) { |
c4241c7d | 88 | ri->raw_writefn(env, ri, v); |
721fae12 | 89 | } else if (ri->writefn) { |
c4241c7d | 90 | ri->writefn(env, ri, v); |
721fae12 | 91 | } else { |
afb2530f | 92 | raw_write(env, ri, v); |
721fae12 | 93 | } |
721fae12 PM |
94 | } |
95 | ||
375421cc PM |
96 | static bool raw_accessors_invalid(const ARMCPRegInfo *ri) |
97 | { | |
9b37a28c FR |
98 | /* |
99 | * Return true if the regdef would cause an assertion if you called | |
375421cc PM |
100 | * read_raw_cp_reg() or write_raw_cp_reg() on it (ie if it is a |
101 | * program bug for it not to have the NO_RAW flag). | |
102 | * NB that returning false here doesn't necessarily mean that calling | |
103 | * read/write_raw_cp_reg() is safe, because we can't distinguish "has | |
104 | * read/write access functions which are safe for raw use" from "has | |
105 | * read/write access functions which have side effects but has forgotten | |
106 | * to provide raw access functions". | |
107 | * The tests here line up with the conditions in read/write_raw_cp_reg() | |
108 | * and assertions in raw_read()/raw_write(). | |
109 | */ | |
110 | if ((ri->type & ARM_CP_CONST) || | |
111 | ri->fieldoffset || | |
112 | ((ri->raw_writefn || ri->writefn) && (ri->raw_readfn || ri->readfn))) { | |
113 | return false; | |
114 | } | |
115 | return true; | |
116 | } | |
117 | ||
b698e4ee | 118 | bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync) |
721fae12 PM |
119 | { |
120 | /* Write the coprocessor state from cpu->env to the (index,value) list. */ | |
121 | int i; | |
122 | bool ok = true; | |
123 | ||
124 | for (i = 0; i < cpu->cpreg_array_len; i++) { | |
125 | uint32_t regidx = kvm_to_cpreg_id(cpu->cpreg_indexes[i]); | |
126 | const ARMCPRegInfo *ri; | |
b698e4ee | 127 | uint64_t newval; |
59a1c327 | 128 | |
60322b39 | 129 | ri = get_arm_cp_reginfo(cpu->cp_regs, regidx); |
721fae12 PM |
130 | if (!ri) { |
131 | ok = false; | |
132 | continue; | |
133 | } | |
7a0e58fa | 134 | if (ri->type & ARM_CP_NO_RAW) { |
721fae12 PM |
135 | continue; |
136 | } | |
b698e4ee PM |
137 | |
138 | newval = read_raw_cp_reg(&cpu->env, ri); | |
139 | if (kvm_sync) { | |
140 | /* | |
141 | * Only sync if the previous list->cpustate sync succeeded. | |
142 | * Rather than tracking the success/failure state for every | |
143 | * item in the list, we just recheck "does the raw write we must | |
144 | * have made in write_list_to_cpustate() read back OK" here. | |
145 | */ | |
146 | uint64_t oldval = cpu->cpreg_values[i]; | |
147 | ||
148 | if (oldval == newval) { | |
149 | continue; | |
150 | } | |
151 | ||
152 | write_raw_cp_reg(&cpu->env, ri, oldval); | |
153 | if (read_raw_cp_reg(&cpu->env, ri) != oldval) { | |
154 | continue; | |
155 | } | |
156 | ||
157 | write_raw_cp_reg(&cpu->env, ri, newval); | |
158 | } | |
159 | cpu->cpreg_values[i] = newval; | |
721fae12 PM |
160 | } |
161 | return ok; | |
162 | } | |
163 | ||
164 | bool write_list_to_cpustate(ARMCPU *cpu) | |
165 | { | |
166 | int i; | |
167 | bool ok = true; | |
168 | ||
169 | for (i = 0; i < cpu->cpreg_array_len; i++) { | |
170 | uint32_t regidx = kvm_to_cpreg_id(cpu->cpreg_indexes[i]); | |
171 | uint64_t v = cpu->cpreg_values[i]; | |
721fae12 PM |
172 | const ARMCPRegInfo *ri; |
173 | ||
60322b39 | 174 | ri = get_arm_cp_reginfo(cpu->cp_regs, regidx); |
721fae12 PM |
175 | if (!ri) { |
176 | ok = false; | |
177 | continue; | |
178 | } | |
7a0e58fa | 179 | if (ri->type & ARM_CP_NO_RAW) { |
721fae12 PM |
180 | continue; |
181 | } | |
9b37a28c FR |
182 | /* |
183 | * Write value and confirm it reads back as written | |
721fae12 PM |
184 | * (to catch read-only registers and partially read-only |
185 | * registers where the incoming migration value doesn't match) | |
186 | */ | |
59a1c327 PM |
187 | write_raw_cp_reg(&cpu->env, ri, v); |
188 | if (read_raw_cp_reg(&cpu->env, ri) != v) { | |
721fae12 PM |
189 | ok = false; |
190 | } | |
191 | } | |
192 | return ok; | |
193 | } | |
194 | ||
195 | static void add_cpreg_to_list(gpointer key, gpointer opaque) | |
196 | { | |
197 | ARMCPU *cpu = opaque; | |
5860362d RH |
198 | uint32_t regidx = (uintptr_t)key; |
199 | const ARMCPRegInfo *ri = get_arm_cp_reginfo(cpu->cp_regs, regidx); | |
721fae12 | 200 | |
04215eb1 | 201 | if (!(ri->type & (ARM_CP_NO_RAW | ARM_CP_ALIAS))) { |
721fae12 PM |
202 | cpu->cpreg_indexes[cpu->cpreg_array_len] = cpreg_to_kvm_id(regidx); |
203 | /* The value array need not be initialized at this point */ | |
204 | cpu->cpreg_array_len++; | |
205 | } | |
206 | } | |
207 | ||
208 | static void count_cpreg(gpointer key, gpointer opaque) | |
209 | { | |
210 | ARMCPU *cpu = opaque; | |
721fae12 PM |
211 | const ARMCPRegInfo *ri; |
212 | ||
5860362d | 213 | ri = g_hash_table_lookup(cpu->cp_regs, key); |
721fae12 | 214 | |
04215eb1 | 215 | if (!(ri->type & (ARM_CP_NO_RAW | ARM_CP_ALIAS))) { |
721fae12 PM |
216 | cpu->cpreg_array_len++; |
217 | } | |
218 | } | |
219 | ||
220 | static gint cpreg_key_compare(gconstpointer a, gconstpointer b) | |
221 | { | |
5860362d RH |
222 | uint64_t aidx = cpreg_to_kvm_id((uintptr_t)a); |
223 | uint64_t bidx = cpreg_to_kvm_id((uintptr_t)b); | |
721fae12 | 224 | |
cbf239b7 AR |
225 | if (aidx > bidx) { |
226 | return 1; | |
227 | } | |
228 | if (aidx < bidx) { | |
229 | return -1; | |
230 | } | |
231 | return 0; | |
721fae12 PM |
232 | } |
233 | ||
234 | void init_cpreg_list(ARMCPU *cpu) | |
235 | { | |
9b37a28c FR |
236 | /* |
237 | * Initialise the cpreg_tuples[] array based on the cp_regs hash. | |
721fae12 PM |
238 | * Note that we require cpreg_tuples[] to be sorted by key ID. |
239 | */ | |
57b6d95e | 240 | GList *keys; |
721fae12 PM |
241 | int arraylen; |
242 | ||
57b6d95e | 243 | keys = g_hash_table_get_keys(cpu->cp_regs); |
721fae12 PM |
244 | keys = g_list_sort(keys, cpreg_key_compare); |
245 | ||
246 | cpu->cpreg_array_len = 0; | |
247 | ||
248 | g_list_foreach(keys, count_cpreg, cpu); | |
249 | ||
250 | arraylen = cpu->cpreg_array_len; | |
251 | cpu->cpreg_indexes = g_new(uint64_t, arraylen); | |
252 | cpu->cpreg_values = g_new(uint64_t, arraylen); | |
253 | cpu->cpreg_vmstate_indexes = g_new(uint64_t, arraylen); | |
254 | cpu->cpreg_vmstate_values = g_new(uint64_t, arraylen); | |
255 | cpu->cpreg_vmstate_array_len = cpu->cpreg_array_len; | |
256 | cpu->cpreg_array_len = 0; | |
257 | ||
258 | g_list_foreach(keys, add_cpreg_to_list, cpu); | |
259 | ||
260 | assert(cpu->cpreg_array_len == arraylen); | |
261 | ||
262 | g_list_free(keys); | |
263 | } | |
264 | ||
68e9c2fe | 265 | /* |
93dd1e61 | 266 | * Some registers are not accessible from AArch32 EL3 if SCR.NS == 0. |
68e9c2fe EI |
267 | */ |
268 | static CPAccessResult access_el3_aa32ns(CPUARMState *env, | |
3f208fd7 PM |
269 | const ARMCPRegInfo *ri, |
270 | bool isread) | |
68e9c2fe | 271 | { |
93dd1e61 EI |
272 | if (!is_a64(env) && arm_current_el(env) == 3 && |
273 | arm_is_secure_below_el3(env)) { | |
68e9c2fe EI |
274 | return CP_ACCESS_TRAP_UNCATEGORIZED; |
275 | } | |
276 | return CP_ACCESS_OK; | |
277 | } | |
278 | ||
9b37a28c FR |
279 | /* |
280 | * Some secure-only AArch32 registers trap to EL3 if used from | |
5513c3ab PM |
281 | * Secure EL1 (but are just ordinary UNDEF in other non-EL3 contexts). |
282 | * Note that an access from Secure EL1 can only happen if EL3 is AArch64. | |
283 | * We assume that the .access field is set to PL1_RW. | |
284 | */ | |
285 | static CPAccessResult access_trap_aa32s_el1(CPUARMState *env, | |
3f208fd7 PM |
286 | const ARMCPRegInfo *ri, |
287 | bool isread) | |
5513c3ab PM |
288 | { |
289 | if (arm_current_el(env) == 3) { | |
290 | return CP_ACCESS_OK; | |
291 | } | |
292 | if (arm_is_secure_below_el3(env)) { | |
926c1b97 RDC |
293 | if (env->cp15.scr_el3 & SCR_EEL2) { |
294 | return CP_ACCESS_TRAP_EL2; | |
295 | } | |
5513c3ab PM |
296 | return CP_ACCESS_TRAP_EL3; |
297 | } | |
298 | /* This will be EL1 NS and EL2 NS, which just UNDEF */ | |
299 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
300 | } | |
301 | ||
9b37a28c FR |
302 | /* |
303 | * Check for traps to performance monitor registers, which are controlled | |
1fce1ba9 PM |
304 | * by MDCR_EL2.TPM for EL2 and MDCR_EL3.TPM for EL3. |
305 | */ | |
306 | static CPAccessResult access_tpm(CPUARMState *env, const ARMCPRegInfo *ri, | |
307 | bool isread) | |
308 | { | |
309 | int el = arm_current_el(env); | |
59dd089c | 310 | uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); |
1fce1ba9 | 311 | |
59dd089c | 312 | if (el < 2 && (mdcr_el2 & MDCR_TPM)) { |
1fce1ba9 PM |
313 | return CP_ACCESS_TRAP_EL2; |
314 | } | |
315 | if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TPM)) { | |
316 | return CP_ACCESS_TRAP_EL3; | |
317 | } | |
318 | return CP_ACCESS_OK; | |
319 | } | |
320 | ||
84929218 RH |
321 | /* Check for traps from EL1 due to HCR_EL2.TVM and HCR_EL2.TRVM. */ |
322 | static CPAccessResult access_tvm_trvm(CPUARMState *env, const ARMCPRegInfo *ri, | |
323 | bool isread) | |
324 | { | |
325 | if (arm_current_el(env) == 1) { | |
326 | uint64_t trap = isread ? HCR_TRVM : HCR_TVM; | |
327 | if (arm_hcr_el2_eff(env) & trap) { | |
328 | return CP_ACCESS_TRAP_EL2; | |
329 | } | |
330 | } | |
331 | return CP_ACCESS_OK; | |
332 | } | |
333 | ||
1803d271 RH |
334 | /* Check for traps from EL1 due to HCR_EL2.TSW. */ |
335 | static CPAccessResult access_tsw(CPUARMState *env, const ARMCPRegInfo *ri, | |
336 | bool isread) | |
337 | { | |
338 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TSW)) { | |
339 | return CP_ACCESS_TRAP_EL2; | |
340 | } | |
341 | return CP_ACCESS_OK; | |
342 | } | |
343 | ||
99602377 RH |
344 | /* Check for traps from EL1 due to HCR_EL2.TACR. */ |
345 | static CPAccessResult access_tacr(CPUARMState *env, const ARMCPRegInfo *ri, | |
346 | bool isread) | |
347 | { | |
348 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TACR)) { | |
349 | return CP_ACCESS_TRAP_EL2; | |
350 | } | |
351 | return CP_ACCESS_OK; | |
352 | } | |
353 | ||
30881b73 RH |
354 | /* Check for traps from EL1 due to HCR_EL2.TTLB. */ |
355 | static CPAccessResult access_ttlb(CPUARMState *env, const ARMCPRegInfo *ri, | |
356 | bool isread) | |
357 | { | |
358 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TTLB)) { | |
359 | return CP_ACCESS_TRAP_EL2; | |
360 | } | |
361 | return CP_ACCESS_OK; | |
362 | } | |
363 | ||
0f66d223 PM |
364 | /* Check for traps from EL1 due to HCR_EL2.TTLB or TTLBIS. */ |
365 | static CPAccessResult access_ttlbis(CPUARMState *env, const ARMCPRegInfo *ri, | |
366 | bool isread) | |
367 | { | |
368 | if (arm_current_el(env) == 1 && | |
369 | (arm_hcr_el2_eff(env) & (HCR_TTLB | HCR_TTLBIS))) { | |
370 | return CP_ACCESS_TRAP_EL2; | |
371 | } | |
372 | return CP_ACCESS_OK; | |
373 | } | |
374 | ||
fe3ca86c PM |
375 | #ifdef TARGET_AARCH64 |
376 | /* Check for traps from EL1 due to HCR_EL2.TTLB or TTLBOS. */ | |
377 | static CPAccessResult access_ttlbos(CPUARMState *env, const ARMCPRegInfo *ri, | |
378 | bool isread) | |
379 | { | |
380 | if (arm_current_el(env) == 1 && | |
381 | (arm_hcr_el2_eff(env) & (HCR_TTLB | HCR_TTLBOS))) { | |
382 | return CP_ACCESS_TRAP_EL2; | |
383 | } | |
384 | return CP_ACCESS_OK; | |
385 | } | |
386 | #endif | |
387 | ||
c4241c7d | 388 | static void dacr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
c983fe6c | 389 | { |
2fc0cc0e | 390 | ARMCPU *cpu = env_archcpu(env); |
00c8cb0a | 391 | |
8d5c773e | 392 | raw_write(env, ri, value); |
d10eb08f | 393 | tlb_flush(CPU(cpu)); /* Flush TLB as domain not tracked in TLB */ |
c983fe6c PM |
394 | } |
395 | ||
c4241c7d | 396 | static void fcse_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
08de207b | 397 | { |
2fc0cc0e | 398 | ARMCPU *cpu = env_archcpu(env); |
00c8cb0a | 399 | |
8d5c773e | 400 | if (raw_read(env, ri) != value) { |
9b37a28c FR |
401 | /* |
402 | * Unlike real hardware the qemu TLB uses virtual addresses, | |
08de207b PM |
403 | * not modified virtual addresses, so this causes a TLB flush. |
404 | */ | |
d10eb08f | 405 | tlb_flush(CPU(cpu)); |
8d5c773e | 406 | raw_write(env, ri, value); |
08de207b | 407 | } |
08de207b | 408 | } |
c4241c7d PM |
409 | |
410 | static void contextidr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
411 | uint64_t value) | |
08de207b | 412 | { |
2fc0cc0e | 413 | ARMCPU *cpu = env_archcpu(env); |
00c8cb0a | 414 | |
452a0955 | 415 | if (raw_read(env, ri) != value && !arm_feature(env, ARM_FEATURE_PMSA) |
014406b5 | 416 | && !extended_addresses_enabled(env)) { |
9b37a28c FR |
417 | /* |
418 | * For VMSA (when not using the LPAE long descriptor page table | |
08de207b PM |
419 | * format) this register includes the ASID, so do a TLB flush. |
420 | * For PMSA it is purely a process ID and no action is needed. | |
421 | */ | |
d10eb08f | 422 | tlb_flush(CPU(cpu)); |
08de207b | 423 | } |
8d5c773e | 424 | raw_write(env, ri, value); |
08de207b PM |
425 | } |
426 | ||
575a94af RH |
427 | static int alle1_tlbmask(CPUARMState *env) |
428 | { | |
429 | /* | |
430 | * Note that the 'ALL' scope must invalidate both stage 1 and | |
431 | * stage 2 translations, whereas most other scopes only invalidate | |
432 | * stage 1 translations. | |
433 | */ | |
434 | return (ARMMMUIdxBit_E10_1 | | |
435 | ARMMMUIdxBit_E10_1_PAN | | |
436 | ARMMMUIdxBit_E10_0 | | |
437 | ARMMMUIdxBit_Stage2 | | |
438 | ARMMMUIdxBit_Stage2_S); | |
439 | } | |
440 | ||
441 | ||
b4ab8ce9 PM |
442 | /* IS variants of TLB operations must affect all cores */ |
443 | static void tlbiall_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
444 | uint64_t value) | |
445 | { | |
29a0af61 | 446 | CPUState *cs = env_cpu(env); |
b4ab8ce9 PM |
447 | |
448 | tlb_flush_all_cpus_synced(cs); | |
449 | } | |
450 | ||
451 | static void tlbiasid_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
452 | uint64_t value) | |
453 | { | |
29a0af61 | 454 | CPUState *cs = env_cpu(env); |
b4ab8ce9 PM |
455 | |
456 | tlb_flush_all_cpus_synced(cs); | |
457 | } | |
458 | ||
459 | static void tlbimva_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
460 | uint64_t value) | |
461 | { | |
29a0af61 | 462 | CPUState *cs = env_cpu(env); |
b4ab8ce9 PM |
463 | |
464 | tlb_flush_page_all_cpus_synced(cs, value & TARGET_PAGE_MASK); | |
465 | } | |
466 | ||
467 | static void tlbimvaa_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
468 | uint64_t value) | |
469 | { | |
29a0af61 | 470 | CPUState *cs = env_cpu(env); |
b4ab8ce9 PM |
471 | |
472 | tlb_flush_page_all_cpus_synced(cs, value & TARGET_PAGE_MASK); | |
473 | } | |
474 | ||
475 | /* | |
476 | * Non-IS variants of TLB operations are upgraded to | |
373e7ffd | 477 | * IS versions if we are at EL1 and HCR_EL2.FB is effectively set to |
b4ab8ce9 PM |
478 | * force broadcast of these operations. |
479 | */ | |
480 | static bool tlb_force_broadcast(CPUARMState *env) | |
481 | { | |
373e7ffd | 482 | return arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_FB); |
b4ab8ce9 PM |
483 | } |
484 | ||
c4241c7d PM |
485 | static void tlbiall_write(CPUARMState *env, const ARMCPRegInfo *ri, |
486 | uint64_t value) | |
d929823f PM |
487 | { |
488 | /* Invalidate all (TLBIALL) */ | |
527db2be | 489 | CPUState *cs = env_cpu(env); |
00c8cb0a | 490 | |
b4ab8ce9 | 491 | if (tlb_force_broadcast(env)) { |
527db2be RH |
492 | tlb_flush_all_cpus_synced(cs); |
493 | } else { | |
494 | tlb_flush(cs); | |
b4ab8ce9 | 495 | } |
d929823f PM |
496 | } |
497 | ||
c4241c7d PM |
498 | static void tlbimva_write(CPUARMState *env, const ARMCPRegInfo *ri, |
499 | uint64_t value) | |
d929823f PM |
500 | { |
501 | /* Invalidate single TLB entry by MVA and ASID (TLBIMVA) */ | |
527db2be | 502 | CPUState *cs = env_cpu(env); |
31b030d4 | 503 | |
527db2be | 504 | value &= TARGET_PAGE_MASK; |
b4ab8ce9 | 505 | if (tlb_force_broadcast(env)) { |
527db2be RH |
506 | tlb_flush_page_all_cpus_synced(cs, value); |
507 | } else { | |
508 | tlb_flush_page(cs, value); | |
b4ab8ce9 | 509 | } |
d929823f PM |
510 | } |
511 | ||
c4241c7d PM |
512 | static void tlbiasid_write(CPUARMState *env, const ARMCPRegInfo *ri, |
513 | uint64_t value) | |
d929823f PM |
514 | { |
515 | /* Invalidate by ASID (TLBIASID) */ | |
527db2be | 516 | CPUState *cs = env_cpu(env); |
00c8cb0a | 517 | |
b4ab8ce9 | 518 | if (tlb_force_broadcast(env)) { |
527db2be RH |
519 | tlb_flush_all_cpus_synced(cs); |
520 | } else { | |
521 | tlb_flush(cs); | |
b4ab8ce9 | 522 | } |
d929823f PM |
523 | } |
524 | ||
c4241c7d PM |
525 | static void tlbimvaa_write(CPUARMState *env, const ARMCPRegInfo *ri, |
526 | uint64_t value) | |
d929823f PM |
527 | { |
528 | /* Invalidate single entry by MVA, all ASIDs (TLBIMVAA) */ | |
527db2be | 529 | CPUState *cs = env_cpu(env); |
31b030d4 | 530 | |
527db2be | 531 | value &= TARGET_PAGE_MASK; |
b4ab8ce9 | 532 | if (tlb_force_broadcast(env)) { |
527db2be RH |
533 | tlb_flush_page_all_cpus_synced(cs, value); |
534 | } else { | |
535 | tlb_flush_page(cs, value); | |
b4ab8ce9 | 536 | } |
fa439fc5 PM |
537 | } |
538 | ||
541ef8c2 SS |
539 | static void tlbiall_nsnh_write(CPUARMState *env, const ARMCPRegInfo *ri, |
540 | uint64_t value) | |
541 | { | |
29a0af61 | 542 | CPUState *cs = env_cpu(env); |
541ef8c2 | 543 | |
575a94af | 544 | tlb_flush_by_mmuidx(cs, alle1_tlbmask(env)); |
541ef8c2 SS |
545 | } |
546 | ||
547 | static void tlbiall_nsnh_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
548 | uint64_t value) | |
549 | { | |
29a0af61 | 550 | CPUState *cs = env_cpu(env); |
541ef8c2 | 551 | |
575a94af | 552 | tlb_flush_by_mmuidx_all_cpus_synced(cs, alle1_tlbmask(env)); |
541ef8c2 SS |
553 | } |
554 | ||
541ef8c2 SS |
555 | |
556 | static void tlbiall_hyp_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
557 | uint64_t value) | |
558 | { | |
29a0af61 | 559 | CPUState *cs = env_cpu(env); |
541ef8c2 | 560 | |
e013b741 | 561 | tlb_flush_by_mmuidx(cs, ARMMMUIdxBit_E2); |
541ef8c2 SS |
562 | } |
563 | ||
564 | static void tlbiall_hyp_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
565 | uint64_t value) | |
566 | { | |
29a0af61 | 567 | CPUState *cs = env_cpu(env); |
541ef8c2 | 568 | |
e013b741 | 569 | tlb_flush_by_mmuidx_all_cpus_synced(cs, ARMMMUIdxBit_E2); |
541ef8c2 SS |
570 | } |
571 | ||
572 | static void tlbimva_hyp_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
573 | uint64_t value) | |
574 | { | |
29a0af61 | 575 | CPUState *cs = env_cpu(env); |
541ef8c2 SS |
576 | uint64_t pageaddr = value & ~MAKE_64BIT_MASK(0, 12); |
577 | ||
e013b741 | 578 | tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdxBit_E2); |
541ef8c2 SS |
579 | } |
580 | ||
581 | static void tlbimva_hyp_is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
582 | uint64_t value) | |
583 | { | |
29a0af61 | 584 | CPUState *cs = env_cpu(env); |
541ef8c2 SS |
585 | uint64_t pageaddr = value & ~MAKE_64BIT_MASK(0, 12); |
586 | ||
a67cf277 | 587 | tlb_flush_page_by_mmuidx_all_cpus_synced(cs, pageaddr, |
e013b741 | 588 | ARMMMUIdxBit_E2); |
541ef8c2 SS |
589 | } |
590 | ||
575a94af RH |
591 | static void tlbiipas2_hyp_write(CPUARMState *env, const ARMCPRegInfo *ri, |
592 | uint64_t value) | |
593 | { | |
594 | CPUState *cs = env_cpu(env); | |
595 | uint64_t pageaddr = (value & MAKE_64BIT_MASK(0, 28)) << 12; | |
596 | ||
597 | tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdxBit_Stage2); | |
598 | } | |
599 | ||
600 | static void tlbiipas2is_hyp_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
601 | uint64_t value) | |
602 | { | |
603 | CPUState *cs = env_cpu(env); | |
604 | uint64_t pageaddr = (value & MAKE_64BIT_MASK(0, 28)) << 12; | |
605 | ||
606 | tlb_flush_page_by_mmuidx_all_cpus_synced(cs, pageaddr, ARMMMUIdxBit_Stage2); | |
607 | } | |
608 | ||
e9aa6c21 | 609 | static const ARMCPRegInfo cp_reginfo[] = { |
9b37a28c FR |
610 | /* |
611 | * Define the secure and non-secure FCSE identifier CP registers | |
54bf36ed FA |
612 | * separately because there is no secure bank in V8 (no _EL3). This allows |
613 | * the secure register to be properly reset and migrated. There is also no | |
614 | * v8 EL1 version of the register so the non-secure instance stands alone. | |
615 | */ | |
9c513e78 | 616 | { .name = "FCSEIDR", |
54bf36ed FA |
617 | .cp = 15, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 0, |
618 | .access = PL1_RW, .secure = ARM_CP_SECSTATE_NS, | |
619 | .fieldoffset = offsetof(CPUARMState, cp15.fcseidr_ns), | |
620 | .resetvalue = 0, .writefn = fcse_write, .raw_writefn = raw_write, }, | |
9c513e78 | 621 | { .name = "FCSEIDR_S", |
54bf36ed FA |
622 | .cp = 15, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 0, |
623 | .access = PL1_RW, .secure = ARM_CP_SECSTATE_S, | |
624 | .fieldoffset = offsetof(CPUARMState, cp15.fcseidr_s), | |
d4e6df63 | 625 | .resetvalue = 0, .writefn = fcse_write, .raw_writefn = raw_write, }, |
9b37a28c FR |
626 | /* |
627 | * Define the secure and non-secure context identifier CP registers | |
54bf36ed FA |
628 | * separately because there is no secure bank in V8 (no _EL3). This allows |
629 | * the secure register to be properly reset and migrated. In the | |
630 | * non-secure case, the 32-bit register will have reset and migration | |
631 | * disabled during registration as it is handled by the 64-bit instance. | |
632 | */ | |
633 | { .name = "CONTEXTIDR_EL1", .state = ARM_CP_STATE_BOTH, | |
014406b5 | 634 | .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 1, |
84929218 RH |
635 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
636 | .secure = ARM_CP_SECSTATE_NS, | |
54bf36ed FA |
637 | .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el[1]), |
638 | .resetvalue = 0, .writefn = contextidr_write, .raw_writefn = raw_write, }, | |
9c513e78 | 639 | { .name = "CONTEXTIDR_S", .state = ARM_CP_STATE_AA32, |
54bf36ed | 640 | .cp = 15, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 1, |
84929218 RH |
641 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
642 | .secure = ARM_CP_SECSTATE_S, | |
54bf36ed | 643 | .fieldoffset = offsetof(CPUARMState, cp15.contextidr_s), |
d4e6df63 | 644 | .resetvalue = 0, .writefn = contextidr_write, .raw_writefn = raw_write, }, |
9449fdf6 PM |
645 | }; |
646 | ||
647 | static const ARMCPRegInfo not_v8_cp_reginfo[] = { | |
9b37a28c FR |
648 | /* |
649 | * NB: Some of these registers exist in v8 but with more precise | |
9449fdf6 PM |
650 | * definitions that don't use CP_ANY wildcards (mostly in v8_cp_reginfo[]). |
651 | */ | |
652 | /* MMU Domain access control / MPU write buffer control */ | |
0c17d68c FA |
653 | { .name = "DACR", |
654 | .cp = 15, .opc1 = CP_ANY, .crn = 3, .crm = CP_ANY, .opc2 = CP_ANY, | |
84929218 | 655 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
0c17d68c FA |
656 | .writefn = dacr_write, .raw_writefn = raw_write, |
657 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.dacr_s), | |
658 | offsetoflow32(CPUARMState, cp15.dacr_ns) } }, | |
9b37a28c FR |
659 | /* |
660 | * ARMv7 allocates a range of implementation defined TLB LOCKDOWN regs. | |
a903c449 | 661 | * For v6 and v5, these mappings are overly broad. |
4fdd17dd | 662 | */ |
a903c449 EI |
663 | { .name = "TLB_LOCKDOWN", .cp = 15, .crn = 10, .crm = 0, |
664 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, .type = ARM_CP_NOP }, | |
665 | { .name = "TLB_LOCKDOWN", .cp = 15, .crn = 10, .crm = 1, | |
666 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, .type = ARM_CP_NOP }, | |
667 | { .name = "TLB_LOCKDOWN", .cp = 15, .crn = 10, .crm = 4, | |
668 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, .type = ARM_CP_NOP }, | |
669 | { .name = "TLB_LOCKDOWN", .cp = 15, .crn = 10, .crm = 8, | |
4fdd17dd | 670 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, .type = ARM_CP_NOP }, |
c4804214 PM |
671 | /* Cache maintenance ops; some of this space may be overridden later. */ |
672 | { .name = "CACHEMAINT", .cp = 15, .crn = 7, .crm = CP_ANY, | |
673 | .opc1 = 0, .opc2 = CP_ANY, .access = PL1_W, | |
674 | .type = ARM_CP_NOP | ARM_CP_OVERRIDE }, | |
e9aa6c21 PM |
675 | }; |
676 | ||
7d57f408 | 677 | static const ARMCPRegInfo not_v6_cp_reginfo[] = { |
9b37a28c FR |
678 | /* |
679 | * Not all pre-v6 cores implemented this WFI, so this is slightly | |
7d57f408 PM |
680 | * over-broad. |
681 | */ | |
682 | { .name = "WFI_v5", .cp = 15, .crn = 7, .crm = 8, .opc1 = 0, .opc2 = 2, | |
683 | .access = PL1_W, .type = ARM_CP_WFI }, | |
7d57f408 PM |
684 | }; |
685 | ||
686 | static const ARMCPRegInfo not_v7_cp_reginfo[] = { | |
9b37a28c FR |
687 | /* |
688 | * Standard v6 WFI (also used in some pre-v6 cores); not in v7 (which | |
7d57f408 PM |
689 | * is UNPREDICTABLE; we choose to NOP as most implementations do). |
690 | */ | |
691 | { .name = "WFI_v6", .cp = 15, .crn = 7, .crm = 0, .opc1 = 0, .opc2 = 4, | |
692 | .access = PL1_W, .type = ARM_CP_WFI }, | |
9b37a28c FR |
693 | /* |
694 | * L1 cache lockdown. Not architectural in v6 and earlier but in practice | |
34f90529 PM |
695 | * implemented in 926, 946, 1026, 1136, 1176 and 11MPCore. StrongARM and |
696 | * OMAPCP will override this space. | |
697 | */ | |
698 | { .name = "DLOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 0, .opc2 = 0, | |
699 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.c9_data), | |
700 | .resetvalue = 0 }, | |
701 | { .name = "ILOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 0, .opc2 = 1, | |
702 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.c9_insn), | |
703 | .resetvalue = 0 }, | |
776d4e5c PM |
704 | /* v6 doesn't have the cache ID registers but Linux reads them anyway */ |
705 | { .name = "DUMMY", .cp = 15, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = CP_ANY, | |
7a0e58fa | 706 | .access = PL1_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 707 | .resetvalue = 0 }, |
9b37a28c FR |
708 | /* |
709 | * We don't implement pre-v7 debug but most CPUs had at least a DBGDIDR; | |
50300698 PM |
710 | * implementing it as RAZ means the "debug architecture version" bits |
711 | * will read as a reserved value, which should cause Linux to not try | |
712 | * to use the debug hardware. | |
713 | */ | |
714 | { .name = "DBGDIDR", .cp = 14, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 0, | |
715 | .access = PL0_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
9b37a28c FR |
716 | /* |
717 | * MMU TLB control. Note that the wildcarding means we cover not just | |
995939a6 PM |
718 | * the unified TLB ops but also the dside/iside/inner-shareable variants. |
719 | */ | |
720 | { .name = "TLBIALL", .cp = 15, .crn = 8, .crm = CP_ANY, | |
721 | .opc1 = CP_ANY, .opc2 = 0, .access = PL1_W, .writefn = tlbiall_write, | |
7a0e58fa | 722 | .type = ARM_CP_NO_RAW }, |
995939a6 PM |
723 | { .name = "TLBIMVA", .cp = 15, .crn = 8, .crm = CP_ANY, |
724 | .opc1 = CP_ANY, .opc2 = 1, .access = PL1_W, .writefn = tlbimva_write, | |
7a0e58fa | 725 | .type = ARM_CP_NO_RAW }, |
995939a6 PM |
726 | { .name = "TLBIASID", .cp = 15, .crn = 8, .crm = CP_ANY, |
727 | .opc1 = CP_ANY, .opc2 = 2, .access = PL1_W, .writefn = tlbiasid_write, | |
7a0e58fa | 728 | .type = ARM_CP_NO_RAW }, |
995939a6 PM |
729 | { .name = "TLBIMVAA", .cp = 15, .crn = 8, .crm = CP_ANY, |
730 | .opc1 = CP_ANY, .opc2 = 3, .access = PL1_W, .writefn = tlbimvaa_write, | |
7a0e58fa | 731 | .type = ARM_CP_NO_RAW }, |
a903c449 EI |
732 | { .name = "PRRR", .cp = 15, .crn = 10, .crm = 2, |
733 | .opc1 = 0, .opc2 = 0, .access = PL1_RW, .type = ARM_CP_NOP }, | |
734 | { .name = "NMRR", .cp = 15, .crn = 10, .crm = 2, | |
735 | .opc1 = 0, .opc2 = 1, .access = PL1_RW, .type = ARM_CP_NOP }, | |
7d57f408 PM |
736 | }; |
737 | ||
c4241c7d PM |
738 | static void cpacr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
739 | uint64_t value) | |
2771db27 | 740 | { |
f0aff255 FA |
741 | uint32_t mask = 0; |
742 | ||
743 | /* In ARMv8 most bits of CPACR_EL1 are RES0. */ | |
744 | if (!arm_feature(env, ARM_FEATURE_V8)) { | |
9b37a28c FR |
745 | /* |
746 | * ARMv7 defines bits for unimplemented coprocessors as RAZ/WI. | |
f0aff255 FA |
747 | * ASEDIS [31] and D32DIS [30] are both UNK/SBZP without VFP. |
748 | * TRCDIS [28] is RAZ/WI since we do not implement a trace macrocell. | |
749 | */ | |
7fbc6a40 | 750 | if (cpu_isar_feature(aa32_vfp_simd, env_archcpu(env))) { |
f0aff255 | 751 | /* VFP coprocessor: cp10 & cp11 [23:20] */ |
fab8ad39 RH |
752 | mask |= R_CPACR_ASEDIS_MASK | |
753 | R_CPACR_D32DIS_MASK | | |
754 | R_CPACR_CP11_MASK | | |
755 | R_CPACR_CP10_MASK; | |
f0aff255 FA |
756 | |
757 | if (!arm_feature(env, ARM_FEATURE_NEON)) { | |
758 | /* ASEDIS [31] bit is RAO/WI */ | |
fab8ad39 | 759 | value |= R_CPACR_ASEDIS_MASK; |
f0aff255 FA |
760 | } |
761 | ||
9b37a28c FR |
762 | /* |
763 | * VFPv3 and upwards with NEON implement 32 double precision | |
f0aff255 FA |
764 | * registers (D0-D31). |
765 | */ | |
a6627f5f | 766 | if (!cpu_isar_feature(aa32_simd_r32, env_archcpu(env))) { |
f0aff255 | 767 | /* D32DIS [30] is RAO/WI if D16-31 are not implemented. */ |
fab8ad39 | 768 | value |= R_CPACR_D32DIS_MASK; |
f0aff255 FA |
769 | } |
770 | } | |
771 | value &= mask; | |
2771db27 | 772 | } |
fc1120a7 PM |
773 | |
774 | /* | |
775 | * For A-profile AArch32 EL3 (but not M-profile secure mode), if NSACR.CP10 | |
776 | * is 0 then CPACR.{CP11,CP10} ignore writes and read as 0b00. | |
777 | */ | |
778 | if (arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
779 | !arm_is_secure(env) && !extract32(env->cp15.nsacr, 10, 1)) { | |
fab8ad39 RH |
780 | mask = R_CPACR_CP11_MASK | R_CPACR_CP10_MASK; |
781 | value = (value & ~mask) | (env->cp15.cpacr_el1 & mask); | |
fc1120a7 PM |
782 | } |
783 | ||
7ebd5f2e | 784 | env->cp15.cpacr_el1 = value; |
2771db27 PM |
785 | } |
786 | ||
fc1120a7 PM |
787 | static uint64_t cpacr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
788 | { | |
789 | /* | |
790 | * For A-profile AArch32 EL3 (but not M-profile secure mode), if NSACR.CP10 | |
791 | * is 0 then CPACR.{CP11,CP10} ignore writes and read as 0b00. | |
792 | */ | |
793 | uint64_t value = env->cp15.cpacr_el1; | |
794 | ||
795 | if (arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
796 | !arm_is_secure(env) && !extract32(env->cp15.nsacr, 10, 1)) { | |
fab8ad39 | 797 | value = ~(R_CPACR_CP11_MASK | R_CPACR_CP10_MASK); |
fc1120a7 PM |
798 | } |
799 | return value; | |
800 | } | |
801 | ||
802 | ||
5deac39c PM |
803 | static void cpacr_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
804 | { | |
9b37a28c FR |
805 | /* |
806 | * Call cpacr_write() so that we reset with the correct RAO bits set | |
5deac39c PM |
807 | * for our CPU features. |
808 | */ | |
809 | cpacr_write(env, ri, 0); | |
810 | } | |
811 | ||
3f208fd7 PM |
812 | static CPAccessResult cpacr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
813 | bool isread) | |
c6f19164 GB |
814 | { |
815 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
816 | /* Check if CPACR accesses are to be trapped to EL2 */ | |
e6ef0169 | 817 | if (arm_current_el(env) == 1 && arm_is_el2_enabled(env) && |
fab8ad39 | 818 | FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TCPAC)) { |
c6f19164 GB |
819 | return CP_ACCESS_TRAP_EL2; |
820 | /* Check if CPACR accesses are to be trapped to EL3 */ | |
821 | } else if (arm_current_el(env) < 3 && | |
fab8ad39 | 822 | FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, TCPAC)) { |
c6f19164 GB |
823 | return CP_ACCESS_TRAP_EL3; |
824 | } | |
825 | } | |
826 | ||
827 | return CP_ACCESS_OK; | |
828 | } | |
829 | ||
3f208fd7 PM |
830 | static CPAccessResult cptr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
831 | bool isread) | |
c6f19164 GB |
832 | { |
833 | /* Check if CPTR accesses are set to trap to EL3 */ | |
fab8ad39 RH |
834 | if (arm_current_el(env) == 2 && |
835 | FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, TCPAC)) { | |
c6f19164 GB |
836 | return CP_ACCESS_TRAP_EL3; |
837 | } | |
838 | ||
839 | return CP_ACCESS_OK; | |
840 | } | |
841 | ||
7d57f408 PM |
842 | static const ARMCPRegInfo v6_cp_reginfo[] = { |
843 | /* prefetch by MVA in v6, NOP in v7 */ | |
844 | { .name = "MVA_prefetch", | |
845 | .cp = 15, .crn = 7, .crm = 13, .opc1 = 0, .opc2 = 1, | |
846 | .access = PL1_W, .type = ARM_CP_NOP }, | |
9b37a28c FR |
847 | /* |
848 | * We need to break the TB after ISB to execute self-modifying code | |
6df99dec SS |
849 | * correctly and also to take any pending interrupts immediately. |
850 | * So use arm_cp_write_ignore() function instead of ARM_CP_NOP flag. | |
851 | */ | |
7d57f408 | 852 | { .name = "ISB", .cp = 15, .crn = 7, .crm = 5, .opc1 = 0, .opc2 = 4, |
6df99dec | 853 | .access = PL0_W, .type = ARM_CP_NO_RAW, .writefn = arm_cp_write_ignore }, |
091fd17c | 854 | { .name = "DSB", .cp = 15, .crn = 7, .crm = 10, .opc1 = 0, .opc2 = 4, |
7d57f408 | 855 | .access = PL0_W, .type = ARM_CP_NOP }, |
091fd17c | 856 | { .name = "DMB", .cp = 15, .crn = 7, .crm = 10, .opc1 = 0, .opc2 = 5, |
7d57f408 | 857 | .access = PL0_W, .type = ARM_CP_NOP }, |
06d76f31 | 858 | { .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 2, |
84929218 | 859 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
b848ce2b FA |
860 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ifar_s), |
861 | offsetof(CPUARMState, cp15.ifar_ns) }, | |
06d76f31 | 862 | .resetvalue = 0, }, |
9b37a28c FR |
863 | /* |
864 | * Watchpoint Fault Address Register : should actually only be present | |
06d76f31 PM |
865 | * for 1136, 1176, 11MPCore. |
866 | */ | |
867 | { .name = "WFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1, | |
868 | .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0, }, | |
34222fb8 | 869 | { .name = "CPACR", .state = ARM_CP_STATE_BOTH, .opc0 = 3, |
c6f19164 | 870 | .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 2, .accessfn = cpacr_access, |
7ebd5f2e | 871 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.cpacr_el1), |
fc1120a7 | 872 | .resetfn = cpacr_reset, .writefn = cpacr_write, .readfn = cpacr_read }, |
7d57f408 PM |
873 | }; |
874 | ||
57a4a11b AL |
875 | typedef struct pm_event { |
876 | uint16_t number; /* PMEVTYPER.evtCount is 16 bits wide */ | |
877 | /* If the event is supported on this CPU (used to generate PMCEID[01]) */ | |
878 | bool (*supported)(CPUARMState *); | |
879 | /* | |
880 | * Retrieve the current count of the underlying event. The programmed | |
881 | * counters hold a difference from the return value from this function | |
882 | */ | |
883 | uint64_t (*get_count)(CPUARMState *); | |
4e7beb0c AL |
884 | /* |
885 | * Return how many nanoseconds it will take (at a minimum) for count events | |
886 | * to occur. A negative value indicates the counter will never overflow, or | |
887 | * that the counter has otherwise arranged for the overflow bit to be set | |
888 | * and the PMU interrupt to be raised on overflow. | |
889 | */ | |
890 | int64_t (*ns_per_count)(uint64_t); | |
57a4a11b AL |
891 | } pm_event; |
892 | ||
b2e23725 AL |
893 | static bool event_always_supported(CPUARMState *env) |
894 | { | |
895 | return true; | |
896 | } | |
897 | ||
0d4bfd7d AL |
898 | static uint64_t swinc_get_count(CPUARMState *env) |
899 | { | |
900 | /* | |
901 | * SW_INCR events are written directly to the pmevcntr's by writes to | |
902 | * PMSWINC, so there is no underlying count maintained by the PMU itself | |
903 | */ | |
904 | return 0; | |
905 | } | |
906 | ||
4e7beb0c AL |
907 | static int64_t swinc_ns_per(uint64_t ignored) |
908 | { | |
909 | return -1; | |
910 | } | |
911 | ||
b2e23725 AL |
912 | /* |
913 | * Return the underlying cycle count for the PMU cycle counters. If we're in | |
914 | * usermode, simply return 0. | |
915 | */ | |
916 | static uint64_t cycles_get_count(CPUARMState *env) | |
917 | { | |
918 | #ifndef CONFIG_USER_ONLY | |
919 | return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), | |
920 | ARM_CPU_FREQ, NANOSECONDS_PER_SECOND); | |
921 | #else | |
922 | return cpu_get_host_ticks(); | |
923 | #endif | |
924 | } | |
925 | ||
926 | #ifndef CONFIG_USER_ONLY | |
4e7beb0c AL |
927 | static int64_t cycles_ns_per(uint64_t cycles) |
928 | { | |
929 | return (ARM_CPU_FREQ / NANOSECONDS_PER_SECOND) * cycles; | |
930 | } | |
931 | ||
b2e23725 AL |
932 | static bool instructions_supported(CPUARMState *env) |
933 | { | |
740b1759 | 934 | return icount_enabled() == 1; /* Precise instruction counting */ |
b2e23725 AL |
935 | } |
936 | ||
937 | static uint64_t instructions_get_count(CPUARMState *env) | |
938 | { | |
8191d368 | 939 | return (uint64_t)icount_get_raw(); |
b2e23725 | 940 | } |
4e7beb0c AL |
941 | |
942 | static int64_t instructions_ns_per(uint64_t icount) | |
943 | { | |
8191d368 | 944 | return icount_to_ns((int64_t)icount); |
4e7beb0c | 945 | } |
b2e23725 AL |
946 | #endif |
947 | ||
a793bcd0 | 948 | static bool pmuv3p1_events_supported(CPUARMState *env) |
0727f63b PM |
949 | { |
950 | /* For events which are supported in any v8.1 PMU */ | |
a793bcd0 | 951 | return cpu_isar_feature(any_pmuv3p1, env_archcpu(env)); |
0727f63b PM |
952 | } |
953 | ||
a793bcd0 | 954 | static bool pmuv3p4_events_supported(CPUARMState *env) |
15dd1ebd PM |
955 | { |
956 | /* For events which are supported in any v8.1 PMU */ | |
a793bcd0 | 957 | return cpu_isar_feature(any_pmuv3p4, env_archcpu(env)); |
15dd1ebd PM |
958 | } |
959 | ||
0727f63b PM |
960 | static uint64_t zero_event_get_count(CPUARMState *env) |
961 | { | |
962 | /* For events which on QEMU never fire, so their count is always zero */ | |
963 | return 0; | |
964 | } | |
965 | ||
966 | static int64_t zero_event_ns_per(uint64_t cycles) | |
967 | { | |
968 | /* An event which never fires can never overflow */ | |
969 | return -1; | |
970 | } | |
971 | ||
57a4a11b | 972 | static const pm_event pm_events[] = { |
0d4bfd7d AL |
973 | { .number = 0x000, /* SW_INCR */ |
974 | .supported = event_always_supported, | |
975 | .get_count = swinc_get_count, | |
4e7beb0c | 976 | .ns_per_count = swinc_ns_per, |
0d4bfd7d | 977 | }, |
b2e23725 AL |
978 | #ifndef CONFIG_USER_ONLY |
979 | { .number = 0x008, /* INST_RETIRED, Instruction architecturally executed */ | |
980 | .supported = instructions_supported, | |
981 | .get_count = instructions_get_count, | |
4e7beb0c | 982 | .ns_per_count = instructions_ns_per, |
b2e23725 AL |
983 | }, |
984 | { .number = 0x011, /* CPU_CYCLES, Cycle */ | |
985 | .supported = event_always_supported, | |
986 | .get_count = cycles_get_count, | |
4e7beb0c | 987 | .ns_per_count = cycles_ns_per, |
0727f63b | 988 | }, |
b2e23725 | 989 | #endif |
0727f63b | 990 | { .number = 0x023, /* STALL_FRONTEND */ |
a793bcd0 | 991 | .supported = pmuv3p1_events_supported, |
0727f63b PM |
992 | .get_count = zero_event_get_count, |
993 | .ns_per_count = zero_event_ns_per, | |
994 | }, | |
995 | { .number = 0x024, /* STALL_BACKEND */ | |
a793bcd0 | 996 | .supported = pmuv3p1_events_supported, |
0727f63b PM |
997 | .get_count = zero_event_get_count, |
998 | .ns_per_count = zero_event_ns_per, | |
999 | }, | |
15dd1ebd | 1000 | { .number = 0x03c, /* STALL */ |
a793bcd0 | 1001 | .supported = pmuv3p4_events_supported, |
15dd1ebd PM |
1002 | .get_count = zero_event_get_count, |
1003 | .ns_per_count = zero_event_ns_per, | |
1004 | }, | |
57a4a11b AL |
1005 | }; |
1006 | ||
1007 | /* | |
1008 | * Note: Before increasing MAX_EVENT_ID beyond 0x3f into the 0x40xx range of | |
1009 | * events (i.e. the statistical profiling extension), this implementation | |
1010 | * should first be updated to something sparse instead of the current | |
1011 | * supported_event_map[] array. | |
1012 | */ | |
15dd1ebd | 1013 | #define MAX_EVENT_ID 0x3c |
57a4a11b AL |
1014 | #define UNSUPPORTED_EVENT UINT16_MAX |
1015 | static uint16_t supported_event_map[MAX_EVENT_ID + 1]; | |
1016 | ||
1017 | /* | |
bf8d0969 AL |
1018 | * Called upon CPU initialization to initialize PMCEID[01]_EL0 and build a map |
1019 | * of ARM event numbers to indices in our pm_events array. | |
57a4a11b AL |
1020 | * |
1021 | * Note: Events in the 0x40XX range are not currently supported. | |
1022 | */ | |
bf8d0969 | 1023 | void pmu_init(ARMCPU *cpu) |
57a4a11b | 1024 | { |
57a4a11b AL |
1025 | unsigned int i; |
1026 | ||
bf8d0969 AL |
1027 | /* |
1028 | * Empty supported_event_map and cpu->pmceid[01] before adding supported | |
1029 | * events to them | |
1030 | */ | |
57a4a11b AL |
1031 | for (i = 0; i < ARRAY_SIZE(supported_event_map); i++) { |
1032 | supported_event_map[i] = UNSUPPORTED_EVENT; | |
1033 | } | |
bf8d0969 AL |
1034 | cpu->pmceid0 = 0; |
1035 | cpu->pmceid1 = 0; | |
57a4a11b AL |
1036 | |
1037 | for (i = 0; i < ARRAY_SIZE(pm_events); i++) { | |
1038 | const pm_event *cnt = &pm_events[i]; | |
1039 | assert(cnt->number <= MAX_EVENT_ID); | |
1040 | /* We do not currently support events in the 0x40xx range */ | |
1041 | assert(cnt->number <= 0x3f); | |
1042 | ||
bf8d0969 | 1043 | if (cnt->supported(&cpu->env)) { |
57a4a11b | 1044 | supported_event_map[cnt->number] = i; |
67da43d6 | 1045 | uint64_t event_mask = 1ULL << (cnt->number & 0x1f); |
bf8d0969 AL |
1046 | if (cnt->number & 0x20) { |
1047 | cpu->pmceid1 |= event_mask; | |
1048 | } else { | |
1049 | cpu->pmceid0 |= event_mask; | |
1050 | } | |
57a4a11b AL |
1051 | } |
1052 | } | |
57a4a11b AL |
1053 | } |
1054 | ||
5ecdd3e4 AL |
1055 | /* |
1056 | * Check at runtime whether a PMU event is supported for the current machine | |
1057 | */ | |
1058 | static bool event_supported(uint16_t number) | |
1059 | { | |
1060 | if (number > MAX_EVENT_ID) { | |
1061 | return false; | |
1062 | } | |
1063 | return supported_event_map[number] != UNSUPPORTED_EVENT; | |
1064 | } | |
1065 | ||
3f208fd7 PM |
1066 | static CPAccessResult pmreg_access(CPUARMState *env, const ARMCPRegInfo *ri, |
1067 | bool isread) | |
200ac0ef | 1068 | { |
9b37a28c FR |
1069 | /* |
1070 | * Performance monitor registers user accessibility is controlled | |
1fce1ba9 PM |
1071 | * by PMUSERENR. MDCR_EL2.TPM and MDCR_EL3.TPM allow configurable |
1072 | * trapping to EL2 or EL3 for other accesses. | |
200ac0ef | 1073 | */ |
1fce1ba9 | 1074 | int el = arm_current_el(env); |
59dd089c | 1075 | uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); |
1fce1ba9 | 1076 | |
6ecd0b6b | 1077 | if (el == 0 && !(env->cp15.c9_pmuserenr & 1)) { |
fcd25206 | 1078 | return CP_ACCESS_TRAP; |
200ac0ef | 1079 | } |
59dd089c | 1080 | if (el < 2 && (mdcr_el2 & MDCR_TPM)) { |
1fce1ba9 PM |
1081 | return CP_ACCESS_TRAP_EL2; |
1082 | } | |
1083 | if (el < 3 && (env->cp15.mdcr_el3 & MDCR_TPM)) { | |
1084 | return CP_ACCESS_TRAP_EL3; | |
1085 | } | |
1086 | ||
fcd25206 | 1087 | return CP_ACCESS_OK; |
200ac0ef PM |
1088 | } |
1089 | ||
6ecd0b6b AB |
1090 | static CPAccessResult pmreg_access_xevcntr(CPUARMState *env, |
1091 | const ARMCPRegInfo *ri, | |
1092 | bool isread) | |
1093 | { | |
1094 | /* ER: event counter read trap control */ | |
1095 | if (arm_feature(env, ARM_FEATURE_V8) | |
1096 | && arm_current_el(env) == 0 | |
1097 | && (env->cp15.c9_pmuserenr & (1 << 3)) != 0 | |
1098 | && isread) { | |
1099 | return CP_ACCESS_OK; | |
1100 | } | |
1101 | ||
1102 | return pmreg_access(env, ri, isread); | |
1103 | } | |
1104 | ||
1105 | static CPAccessResult pmreg_access_swinc(CPUARMState *env, | |
1106 | const ARMCPRegInfo *ri, | |
1107 | bool isread) | |
1108 | { | |
1109 | /* SW: software increment write trap control */ | |
1110 | if (arm_feature(env, ARM_FEATURE_V8) | |
1111 | && arm_current_el(env) == 0 | |
1112 | && (env->cp15.c9_pmuserenr & (1 << 1)) != 0 | |
1113 | && !isread) { | |
1114 | return CP_ACCESS_OK; | |
1115 | } | |
1116 | ||
1117 | return pmreg_access(env, ri, isread); | |
1118 | } | |
1119 | ||
6ecd0b6b AB |
1120 | static CPAccessResult pmreg_access_selr(CPUARMState *env, |
1121 | const ARMCPRegInfo *ri, | |
1122 | bool isread) | |
1123 | { | |
1124 | /* ER: event counter read trap control */ | |
1125 | if (arm_feature(env, ARM_FEATURE_V8) | |
1126 | && arm_current_el(env) == 0 | |
1127 | && (env->cp15.c9_pmuserenr & (1 << 3)) != 0) { | |
1128 | return CP_ACCESS_OK; | |
1129 | } | |
1130 | ||
1131 | return pmreg_access(env, ri, isread); | |
1132 | } | |
1133 | ||
1134 | static CPAccessResult pmreg_access_ccntr(CPUARMState *env, | |
1135 | const ARMCPRegInfo *ri, | |
1136 | bool isread) | |
1137 | { | |
1138 | /* CR: cycle counter read trap control */ | |
1139 | if (arm_feature(env, ARM_FEATURE_V8) | |
1140 | && arm_current_el(env) == 0 | |
1141 | && (env->cp15.c9_pmuserenr & (1 << 2)) != 0 | |
1142 | && isread) { | |
1143 | return CP_ACCESS_OK; | |
1144 | } | |
1145 | ||
1146 | return pmreg_access(env, ri, isread); | |
1147 | } | |
1148 | ||
01765386 PM |
1149 | /* |
1150 | * Bits in MDCR_EL2 and MDCR_EL3 which pmu_counter_enabled() looks at. | |
1151 | * We use these to decide whether we need to wrap a write to MDCR_EL2 | |
1152 | * or MDCR_EL3 in pmu_op_start()/pmu_op_finish() calls. | |
1153 | */ | |
47b385da PM |
1154 | #define MDCR_EL2_PMU_ENABLE_BITS \ |
1155 | (MDCR_HPME | MDCR_HPMD | MDCR_HPMN | MDCR_HCCD | MDCR_HLP) | |
0b42f4fa | 1156 | #define MDCR_EL3_PMU_ENABLE_BITS (MDCR_SPME | MDCR_SCCD) |
01765386 | 1157 | |
9b37a28c FR |
1158 | /* |
1159 | * Returns true if the counter (pass 31 for PMCCNTR) should count events using | |
033614c4 AL |
1160 | * the current EL, security state, and register configuration. |
1161 | */ | |
1162 | static bool pmu_counter_enabled(CPUARMState *env, uint8_t counter) | |
87124fde | 1163 | { |
033614c4 AL |
1164 | uint64_t filter; |
1165 | bool e, p, u, nsk, nsu, nsh, m; | |
872d2034 | 1166 | bool enabled, prohibited = false, filtered; |
033614c4 AL |
1167 | bool secure = arm_is_secure(env); |
1168 | int el = arm_current_el(env); | |
59dd089c RDC |
1169 | uint64_t mdcr_el2 = arm_mdcr_el2_eff(env); |
1170 | uint8_t hpmn = mdcr_el2 & MDCR_HPMN; | |
87124fde | 1171 | |
cbbb3041 AJ |
1172 | if (!arm_feature(env, ARM_FEATURE_PMU)) { |
1173 | return false; | |
1174 | } | |
1175 | ||
033614c4 AL |
1176 | if (!arm_feature(env, ARM_FEATURE_EL2) || |
1177 | (counter < hpmn || counter == 31)) { | |
1178 | e = env->cp15.c9_pmcr & PMCRE; | |
1179 | } else { | |
59dd089c | 1180 | e = mdcr_el2 & MDCR_HPME; |
87124fde | 1181 | } |
033614c4 | 1182 | enabled = e && (env->cp15.c9_pmcnten & (1 << counter)); |
87124fde | 1183 | |
872d2034 PM |
1184 | /* Is event counting prohibited? */ |
1185 | if (el == 2 && (counter < hpmn || counter == 31)) { | |
1186 | prohibited = mdcr_el2 & MDCR_HPMD; | |
1187 | } | |
1188 | if (secure) { | |
1189 | prohibited = prohibited || !(env->cp15.mdcr_el3 & MDCR_SPME); | |
033614c4 AL |
1190 | } |
1191 | ||
0b42f4fa PM |
1192 | if (counter == 31) { |
1193 | /* | |
1194 | * The cycle counter defaults to running. PMCR.DP says "disable | |
1195 | * the cycle counter when event counting is prohibited". | |
1196 | * Some MDCR bits disable the cycle counter specifically. | |
1197 | */ | |
1198 | prohibited = prohibited && env->cp15.c9_pmcr & PMCRDP; | |
1199 | if (cpu_isar_feature(any_pmuv3p5, env_archcpu(env))) { | |
1200 | if (secure) { | |
1201 | prohibited = prohibited || (env->cp15.mdcr_el3 & MDCR_SCCD); | |
1202 | } | |
1203 | if (el == 2) { | |
1204 | prohibited = prohibited || (mdcr_el2 & MDCR_HCCD); | |
1205 | } | |
1206 | } | |
033614c4 AL |
1207 | } |
1208 | ||
5ecdd3e4 AL |
1209 | if (counter == 31) { |
1210 | filter = env->cp15.pmccfiltr_el0; | |
1211 | } else { | |
1212 | filter = env->cp15.c14_pmevtyper[counter]; | |
1213 | } | |
033614c4 AL |
1214 | |
1215 | p = filter & PMXEVTYPER_P; | |
1216 | u = filter & PMXEVTYPER_U; | |
1217 | nsk = arm_feature(env, ARM_FEATURE_EL3) && (filter & PMXEVTYPER_NSK); | |
1218 | nsu = arm_feature(env, ARM_FEATURE_EL3) && (filter & PMXEVTYPER_NSU); | |
1219 | nsh = arm_feature(env, ARM_FEATURE_EL2) && (filter & PMXEVTYPER_NSH); | |
1220 | m = arm_el_is_aa64(env, 1) && | |
1221 | arm_feature(env, ARM_FEATURE_EL3) && (filter & PMXEVTYPER_M); | |
1222 | ||
1223 | if (el == 0) { | |
1224 | filtered = secure ? u : u != nsu; | |
1225 | } else if (el == 1) { | |
1226 | filtered = secure ? p : p != nsk; | |
1227 | } else if (el == 2) { | |
1228 | filtered = !nsh; | |
1229 | } else { /* EL3 */ | |
1230 | filtered = m != p; | |
1231 | } | |
1232 | ||
5ecdd3e4 AL |
1233 | if (counter != 31) { |
1234 | /* | |
1235 | * If not checking PMCCNTR, ensure the counter is setup to an event we | |
1236 | * support | |
1237 | */ | |
1238 | uint16_t event = filter & PMXEVTYPER_EVTCOUNT; | |
1239 | if (!event_supported(event)) { | |
1240 | return false; | |
1241 | } | |
1242 | } | |
1243 | ||
033614c4 | 1244 | return enabled && !prohibited && !filtered; |
87124fde | 1245 | } |
033614c4 | 1246 | |
f4efb4b2 AL |
1247 | static void pmu_update_irq(CPUARMState *env) |
1248 | { | |
2fc0cc0e | 1249 | ARMCPU *cpu = env_archcpu(env); |
f4efb4b2 AL |
1250 | qemu_set_irq(cpu->pmu_interrupt, (env->cp15.c9_pmcr & PMCRE) && |
1251 | (env->cp15.c9_pminten & env->cp15.c9_pmovsr)); | |
1252 | } | |
1253 | ||
b57aa7bd PM |
1254 | static bool pmccntr_clockdiv_enabled(CPUARMState *env) |
1255 | { | |
1256 | /* | |
1257 | * Return true if the clock divider is enabled and the cycle counter | |
1258 | * is supposed to tick only once every 64 clock cycles. This is | |
1259 | * controlled by PMCR.D, but if PMCR.LC is set to enable the long | |
1260 | * (64-bit) cycle counter PMCR.D has no effect. | |
1261 | */ | |
1262 | return (env->cp15.c9_pmcr & (PMCRD | PMCRLC)) == PMCRD; | |
1263 | } | |
1264 | ||
47b385da PM |
1265 | static bool pmevcntr_is_64_bit(CPUARMState *env, int counter) |
1266 | { | |
1267 | /* Return true if the specified event counter is configured to be 64 bit */ | |
1268 | ||
1269 | /* This isn't intended to be used with the cycle counter */ | |
1270 | assert(counter < 31); | |
1271 | ||
1272 | if (!cpu_isar_feature(any_pmuv3p5, env_archcpu(env))) { | |
1273 | return false; | |
1274 | } | |
1275 | ||
1276 | if (arm_feature(env, ARM_FEATURE_EL2)) { | |
1277 | /* | |
1278 | * MDCR_EL2.HLP still applies even when EL2 is disabled in the | |
1279 | * current security state, so we don't use arm_mdcr_el2_eff() here. | |
1280 | */ | |
1281 | bool hlp = env->cp15.mdcr_el2 & MDCR_HLP; | |
1282 | int hpmn = env->cp15.mdcr_el2 & MDCR_HPMN; | |
1283 | ||
1284 | if (hpmn != 0 && counter >= hpmn) { | |
1285 | return hlp; | |
1286 | } | |
1287 | } | |
1288 | return env->cp15.c9_pmcr & PMCRLP; | |
1289 | } | |
1290 | ||
5d05b9d4 AL |
1291 | /* |
1292 | * Ensure c15_ccnt is the guest-visible count so that operations such as | |
1293 | * enabling/disabling the counter or filtering, modifying the count itself, | |
1294 | * etc. can be done logically. This is essentially a no-op if the counter is | |
1295 | * not enabled at the time of the call. | |
1296 | */ | |
f2b2f53f | 1297 | static void pmccntr_op_start(CPUARMState *env) |
ec7b4ce4 | 1298 | { |
b2e23725 | 1299 | uint64_t cycles = cycles_get_count(env); |
ec7b4ce4 | 1300 | |
033614c4 | 1301 | if (pmu_counter_enabled(env, 31)) { |
5d05b9d4 | 1302 | uint64_t eff_cycles = cycles; |
b57aa7bd | 1303 | if (pmccntr_clockdiv_enabled(env)) { |
5d05b9d4 AL |
1304 | eff_cycles /= 64; |
1305 | } | |
1306 | ||
f4efb4b2 AL |
1307 | uint64_t new_pmccntr = eff_cycles - env->cp15.c15_ccnt_delta; |
1308 | ||
1309 | uint64_t overflow_mask = env->cp15.c9_pmcr & PMCRLC ? \ | |
1310 | 1ull << 63 : 1ull << 31; | |
1311 | if (env->cp15.c15_ccnt & ~new_pmccntr & overflow_mask) { | |
76e25d41 | 1312 | env->cp15.c9_pmovsr |= (1ULL << 31); |
f4efb4b2 AL |
1313 | pmu_update_irq(env); |
1314 | } | |
1315 | ||
1316 | env->cp15.c15_ccnt = new_pmccntr; | |
ec7b4ce4 | 1317 | } |
5d05b9d4 AL |
1318 | env->cp15.c15_ccnt_delta = cycles; |
1319 | } | |
ec7b4ce4 | 1320 | |
5d05b9d4 AL |
1321 | /* |
1322 | * If PMCCNTR is enabled, recalculate the delta between the clock and the | |
1323 | * guest-visible count. A call to pmccntr_op_finish should follow every call to | |
1324 | * pmccntr_op_start. | |
1325 | */ | |
f2b2f53f | 1326 | static void pmccntr_op_finish(CPUARMState *env) |
5d05b9d4 | 1327 | { |
033614c4 | 1328 | if (pmu_counter_enabled(env, 31)) { |
4e7beb0c AL |
1329 | #ifndef CONFIG_USER_ONLY |
1330 | /* Calculate when the counter will next overflow */ | |
1331 | uint64_t remaining_cycles = -env->cp15.c15_ccnt; | |
1332 | if (!(env->cp15.c9_pmcr & PMCRLC)) { | |
1333 | remaining_cycles = (uint32_t)remaining_cycles; | |
1334 | } | |
1335 | int64_t overflow_in = cycles_ns_per(remaining_cycles); | |
1336 | ||
1337 | if (overflow_in > 0) { | |
f1dd2506 PM |
1338 | int64_t overflow_at; |
1339 | ||
1340 | if (!sadd64_overflow(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), | |
1341 | overflow_in, &overflow_at)) { | |
1342 | ARMCPU *cpu = env_archcpu(env); | |
1343 | timer_mod_anticipate_ns(cpu->pmu_timer, overflow_at); | |
1344 | } | |
4e7beb0c AL |
1345 | } |
1346 | #endif | |
5d05b9d4 | 1347 | |
4e7beb0c | 1348 | uint64_t prev_cycles = env->cp15.c15_ccnt_delta; |
b57aa7bd | 1349 | if (pmccntr_clockdiv_enabled(env)) { |
5d05b9d4 AL |
1350 | prev_cycles /= 64; |
1351 | } | |
5d05b9d4 | 1352 | env->cp15.c15_ccnt_delta = prev_cycles - env->cp15.c15_ccnt; |
ec7b4ce4 AF |
1353 | } |
1354 | } | |
1355 | ||
5ecdd3e4 AL |
1356 | static void pmevcntr_op_start(CPUARMState *env, uint8_t counter) |
1357 | { | |
1358 | ||
1359 | uint16_t event = env->cp15.c14_pmevtyper[counter] & PMXEVTYPER_EVTCOUNT; | |
1360 | uint64_t count = 0; | |
1361 | if (event_supported(event)) { | |
1362 | uint16_t event_idx = supported_event_map[event]; | |
1363 | count = pm_events[event_idx].get_count(env); | |
1364 | } | |
1365 | ||
1366 | if (pmu_counter_enabled(env, counter)) { | |
47b385da PM |
1367 | uint64_t new_pmevcntr = count - env->cp15.c14_pmevcntr_delta[counter]; |
1368 | uint64_t overflow_mask = pmevcntr_is_64_bit(env, counter) ? | |
1369 | 1ULL << 63 : 1ULL << 31; | |
f4efb4b2 | 1370 | |
47b385da | 1371 | if (env->cp15.c14_pmevcntr[counter] & ~new_pmevcntr & overflow_mask) { |
f4efb4b2 AL |
1372 | env->cp15.c9_pmovsr |= (1 << counter); |
1373 | pmu_update_irq(env); | |
1374 | } | |
1375 | env->cp15.c14_pmevcntr[counter] = new_pmevcntr; | |
5ecdd3e4 AL |
1376 | } |
1377 | env->cp15.c14_pmevcntr_delta[counter] = count; | |
1378 | } | |
1379 | ||
1380 | static void pmevcntr_op_finish(CPUARMState *env, uint8_t counter) | |
1381 | { | |
1382 | if (pmu_counter_enabled(env, counter)) { | |
4e7beb0c AL |
1383 | #ifndef CONFIG_USER_ONLY |
1384 | uint16_t event = env->cp15.c14_pmevtyper[counter] & PMXEVTYPER_EVTCOUNT; | |
1385 | uint16_t event_idx = supported_event_map[event]; | |
47b385da PM |
1386 | uint64_t delta = -(env->cp15.c14_pmevcntr[counter] + 1); |
1387 | int64_t overflow_in; | |
1388 | ||
1389 | if (!pmevcntr_is_64_bit(env, counter)) { | |
1390 | delta = (uint32_t)delta; | |
1391 | } | |
1392 | overflow_in = pm_events[event_idx].ns_per_count(delta); | |
4e7beb0c AL |
1393 | |
1394 | if (overflow_in > 0) { | |
f1dd2506 PM |
1395 | int64_t overflow_at; |
1396 | ||
1397 | if (!sadd64_overflow(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), | |
1398 | overflow_in, &overflow_at)) { | |
1399 | ARMCPU *cpu = env_archcpu(env); | |
1400 | timer_mod_anticipate_ns(cpu->pmu_timer, overflow_at); | |
1401 | } | |
4e7beb0c AL |
1402 | } |
1403 | #endif | |
1404 | ||
5ecdd3e4 AL |
1405 | env->cp15.c14_pmevcntr_delta[counter] -= |
1406 | env->cp15.c14_pmevcntr[counter]; | |
1407 | } | |
1408 | } | |
1409 | ||
5d05b9d4 AL |
1410 | void pmu_op_start(CPUARMState *env) |
1411 | { | |
5ecdd3e4 | 1412 | unsigned int i; |
5d05b9d4 | 1413 | pmccntr_op_start(env); |
5ecdd3e4 AL |
1414 | for (i = 0; i < pmu_num_counters(env); i++) { |
1415 | pmevcntr_op_start(env, i); | |
1416 | } | |
5d05b9d4 AL |
1417 | } |
1418 | ||
1419 | void pmu_op_finish(CPUARMState *env) | |
1420 | { | |
5ecdd3e4 | 1421 | unsigned int i; |
5d05b9d4 | 1422 | pmccntr_op_finish(env); |
5ecdd3e4 AL |
1423 | for (i = 0; i < pmu_num_counters(env); i++) { |
1424 | pmevcntr_op_finish(env, i); | |
1425 | } | |
5d05b9d4 AL |
1426 | } |
1427 | ||
033614c4 AL |
1428 | void pmu_pre_el_change(ARMCPU *cpu, void *ignored) |
1429 | { | |
1430 | pmu_op_start(&cpu->env); | |
1431 | } | |
1432 | ||
1433 | void pmu_post_el_change(ARMCPU *cpu, void *ignored) | |
1434 | { | |
1435 | pmu_op_finish(&cpu->env); | |
1436 | } | |
1437 | ||
4e7beb0c AL |
1438 | void arm_pmu_timer_cb(void *opaque) |
1439 | { | |
1440 | ARMCPU *cpu = opaque; | |
1441 | ||
1442 | /* | |
1443 | * Update all the counter values based on the current underlying counts, | |
1444 | * triggering interrupts to be raised, if necessary. pmu_op_finish() also | |
1445 | * has the effect of setting the cpu->pmu_timer to the next earliest time a | |
1446 | * counter may expire. | |
1447 | */ | |
1448 | pmu_op_start(&cpu->env); | |
1449 | pmu_op_finish(&cpu->env); | |
1450 | } | |
1451 | ||
c4241c7d PM |
1452 | static void pmcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1453 | uint64_t value) | |
200ac0ef | 1454 | { |
5d05b9d4 | 1455 | pmu_op_start(env); |
7c2cb42b AF |
1456 | |
1457 | if (value & PMCRC) { | |
1458 | /* The counter has been reset */ | |
1459 | env->cp15.c15_ccnt = 0; | |
1460 | } | |
1461 | ||
5ecdd3e4 AL |
1462 | if (value & PMCRP) { |
1463 | unsigned int i; | |
1464 | for (i = 0; i < pmu_num_counters(env); i++) { | |
1465 | env->cp15.c14_pmevcntr[i] = 0; | |
1466 | } | |
1467 | } | |
1468 | ||
9323e79f PM |
1469 | env->cp15.c9_pmcr &= ~PMCR_WRITABLE_MASK; |
1470 | env->cp15.c9_pmcr |= (value & PMCR_WRITABLE_MASK); | |
7c2cb42b | 1471 | |
5d05b9d4 | 1472 | pmu_op_finish(env); |
7c2cb42b AF |
1473 | } |
1474 | ||
0d4bfd7d AL |
1475 | static void pmswinc_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1476 | uint64_t value) | |
1477 | { | |
1478 | unsigned int i; | |
47b385da PM |
1479 | uint64_t overflow_mask, new_pmswinc; |
1480 | ||
0d4bfd7d AL |
1481 | for (i = 0; i < pmu_num_counters(env); i++) { |
1482 | /* Increment a counter's count iff: */ | |
1483 | if ((value & (1 << i)) && /* counter's bit is set */ | |
1484 | /* counter is enabled and not filtered */ | |
1485 | pmu_counter_enabled(env, i) && | |
1486 | /* counter is SW_INCR */ | |
1487 | (env->cp15.c14_pmevtyper[i] & PMXEVTYPER_EVTCOUNT) == 0x0) { | |
1488 | pmevcntr_op_start(env, i); | |
f4efb4b2 AL |
1489 | |
1490 | /* | |
1491 | * Detect if this write causes an overflow since we can't predict | |
1492 | * PMSWINC overflows like we can for other events | |
1493 | */ | |
47b385da PM |
1494 | new_pmswinc = env->cp15.c14_pmevcntr[i] + 1; |
1495 | ||
1496 | overflow_mask = pmevcntr_is_64_bit(env, i) ? | |
1497 | 1ULL << 63 : 1ULL << 31; | |
f4efb4b2 | 1498 | |
47b385da | 1499 | if (env->cp15.c14_pmevcntr[i] & ~new_pmswinc & overflow_mask) { |
f4efb4b2 AL |
1500 | env->cp15.c9_pmovsr |= (1 << i); |
1501 | pmu_update_irq(env); | |
1502 | } | |
1503 | ||
1504 | env->cp15.c14_pmevcntr[i] = new_pmswinc; | |
1505 | ||
0d4bfd7d AL |
1506 | pmevcntr_op_finish(env, i); |
1507 | } | |
1508 | } | |
1509 | } | |
1510 | ||
7c2cb42b AF |
1511 | static uint64_t pmccntr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
1512 | { | |
5d05b9d4 AL |
1513 | uint64_t ret; |
1514 | pmccntr_op_start(env); | |
1515 | ret = env->cp15.c15_ccnt; | |
1516 | pmccntr_op_finish(env); | |
1517 | return ret; | |
7c2cb42b AF |
1518 | } |
1519 | ||
6b040780 WH |
1520 | static void pmselr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1521 | uint64_t value) | |
1522 | { | |
9b37a28c FR |
1523 | /* |
1524 | * The value of PMSELR.SEL affects the behavior of PMXEVTYPER and | |
6b040780 WH |
1525 | * PMXEVCNTR. We allow [0..31] to be written to PMSELR here; in the |
1526 | * meanwhile, we check PMSELR.SEL when PMXEVTYPER and PMXEVCNTR are | |
1527 | * accessed. | |
1528 | */ | |
1529 | env->cp15.c9_pmselr = value & 0x1f; | |
1530 | } | |
1531 | ||
7c2cb42b AF |
1532 | static void pmccntr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1533 | uint64_t value) | |
1534 | { | |
5d05b9d4 AL |
1535 | pmccntr_op_start(env); |
1536 | env->cp15.c15_ccnt = value; | |
1537 | pmccntr_op_finish(env); | |
200ac0ef | 1538 | } |
421c7ebd PC |
1539 | |
1540 | static void pmccntr_write32(CPUARMState *env, const ARMCPRegInfo *ri, | |
1541 | uint64_t value) | |
1542 | { | |
1543 | uint64_t cur_val = pmccntr_read(env, NULL); | |
1544 | ||
1545 | pmccntr_write(env, ri, deposit64(cur_val, 0, 32, value)); | |
1546 | } | |
1547 | ||
0614601c AF |
1548 | static void pmccfiltr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1549 | uint64_t value) | |
1550 | { | |
5d05b9d4 | 1551 | pmccntr_op_start(env); |
4b8afa1f AL |
1552 | env->cp15.pmccfiltr_el0 = value & PMCCFILTR_EL0; |
1553 | pmccntr_op_finish(env); | |
1554 | } | |
1555 | ||
1556 | static void pmccfiltr_write_a32(CPUARMState *env, const ARMCPRegInfo *ri, | |
1557 | uint64_t value) | |
1558 | { | |
1559 | pmccntr_op_start(env); | |
1560 | /* M is not accessible from AArch32 */ | |
1561 | env->cp15.pmccfiltr_el0 = (env->cp15.pmccfiltr_el0 & PMCCFILTR_M) | | |
1562 | (value & PMCCFILTR); | |
5d05b9d4 | 1563 | pmccntr_op_finish(env); |
0614601c AF |
1564 | } |
1565 | ||
4b8afa1f AL |
1566 | static uint64_t pmccfiltr_read_a32(CPUARMState *env, const ARMCPRegInfo *ri) |
1567 | { | |
1568 | /* M is not visible in AArch32 */ | |
1569 | return env->cp15.pmccfiltr_el0 & PMCCFILTR; | |
1570 | } | |
1571 | ||
c4241c7d | 1572 | static void pmcntenset_write(CPUARMState *env, const ARMCPRegInfo *ri, |
200ac0ef PM |
1573 | uint64_t value) |
1574 | { | |
01765386 | 1575 | pmu_op_start(env); |
7ece99b1 | 1576 | value &= pmu_counter_mask(env); |
200ac0ef | 1577 | env->cp15.c9_pmcnten |= value; |
01765386 | 1578 | pmu_op_finish(env); |
200ac0ef PM |
1579 | } |
1580 | ||
c4241c7d PM |
1581 | static void pmcntenclr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1582 | uint64_t value) | |
200ac0ef | 1583 | { |
01765386 | 1584 | pmu_op_start(env); |
7ece99b1 | 1585 | value &= pmu_counter_mask(env); |
200ac0ef | 1586 | env->cp15.c9_pmcnten &= ~value; |
01765386 | 1587 | pmu_op_finish(env); |
200ac0ef PM |
1588 | } |
1589 | ||
c4241c7d PM |
1590 | static void pmovsr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1591 | uint64_t value) | |
200ac0ef | 1592 | { |
599b71e2 | 1593 | value &= pmu_counter_mask(env); |
200ac0ef | 1594 | env->cp15.c9_pmovsr &= ~value; |
f4efb4b2 | 1595 | pmu_update_irq(env); |
200ac0ef PM |
1596 | } |
1597 | ||
327dd510 AL |
1598 | static void pmovsset_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1599 | uint64_t value) | |
1600 | { | |
1601 | value &= pmu_counter_mask(env); | |
1602 | env->cp15.c9_pmovsr |= value; | |
f4efb4b2 | 1603 | pmu_update_irq(env); |
327dd510 AL |
1604 | } |
1605 | ||
5ecdd3e4 AL |
1606 | static void pmevtyper_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1607 | uint64_t value, const uint8_t counter) | |
200ac0ef | 1608 | { |
5ecdd3e4 AL |
1609 | if (counter == 31) { |
1610 | pmccfiltr_write(env, ri, value); | |
1611 | } else if (counter < pmu_num_counters(env)) { | |
1612 | pmevcntr_op_start(env, counter); | |
1613 | ||
1614 | /* | |
1615 | * If this counter's event type is changing, store the current | |
1616 | * underlying count for the new type in c14_pmevcntr_delta[counter] so | |
1617 | * pmevcntr_op_finish has the correct baseline when it converts back to | |
1618 | * a delta. | |
1619 | */ | |
1620 | uint16_t old_event = env->cp15.c14_pmevtyper[counter] & | |
1621 | PMXEVTYPER_EVTCOUNT; | |
1622 | uint16_t new_event = value & PMXEVTYPER_EVTCOUNT; | |
1623 | if (old_event != new_event) { | |
1624 | uint64_t count = 0; | |
1625 | if (event_supported(new_event)) { | |
1626 | uint16_t event_idx = supported_event_map[new_event]; | |
1627 | count = pm_events[event_idx].get_count(env); | |
1628 | } | |
1629 | env->cp15.c14_pmevcntr_delta[counter] = count; | |
1630 | } | |
1631 | ||
1632 | env->cp15.c14_pmevtyper[counter] = value & PMXEVTYPER_MASK; | |
1633 | pmevcntr_op_finish(env, counter); | |
1634 | } | |
9b37a28c FR |
1635 | /* |
1636 | * Attempts to access PMXEVTYPER are CONSTRAINED UNPREDICTABLE when | |
fdb86656 WH |
1637 | * PMSELR value is equal to or greater than the number of implemented |
1638 | * counters, but not equal to 0x1f. We opt to behave as a RAZ/WI. | |
1639 | */ | |
5ecdd3e4 AL |
1640 | } |
1641 | ||
1642 | static uint64_t pmevtyper_read(CPUARMState *env, const ARMCPRegInfo *ri, | |
1643 | const uint8_t counter) | |
1644 | { | |
1645 | if (counter == 31) { | |
1646 | return env->cp15.pmccfiltr_el0; | |
1647 | } else if (counter < pmu_num_counters(env)) { | |
1648 | return env->cp15.c14_pmevtyper[counter]; | |
1649 | } else { | |
1650 | /* | |
1651 | * We opt to behave as a RAZ/WI when attempts to access PMXEVTYPER | |
1652 | * are CONSTRAINED UNPREDICTABLE. See comments in pmevtyper_write(). | |
1653 | */ | |
1654 | return 0; | |
1655 | } | |
1656 | } | |
1657 | ||
1658 | static void pmevtyper_writefn(CPUARMState *env, const ARMCPRegInfo *ri, | |
1659 | uint64_t value) | |
1660 | { | |
1661 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1662 | pmevtyper_write(env, ri, value, counter); | |
1663 | } | |
1664 | ||
1665 | static void pmevtyper_rawwrite(CPUARMState *env, const ARMCPRegInfo *ri, | |
1666 | uint64_t value) | |
1667 | { | |
1668 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1669 | env->cp15.c14_pmevtyper[counter] = value; | |
1670 | ||
1671 | /* | |
1672 | * pmevtyper_rawwrite is called between a pair of pmu_op_start and | |
1673 | * pmu_op_finish calls when loading saved state for a migration. Because | |
1674 | * we're potentially updating the type of event here, the value written to | |
1675 | * c14_pmevcntr_delta by the preceeding pmu_op_start call may be for a | |
1676 | * different counter type. Therefore, we need to set this value to the | |
1677 | * current count for the counter type we're writing so that pmu_op_finish | |
1678 | * has the correct count for its calculation. | |
1679 | */ | |
1680 | uint16_t event = value & PMXEVTYPER_EVTCOUNT; | |
1681 | if (event_supported(event)) { | |
1682 | uint16_t event_idx = supported_event_map[event]; | |
1683 | env->cp15.c14_pmevcntr_delta[counter] = | |
1684 | pm_events[event_idx].get_count(env); | |
fdb86656 WH |
1685 | } |
1686 | } | |
1687 | ||
5ecdd3e4 AL |
1688 | static uint64_t pmevtyper_readfn(CPUARMState *env, const ARMCPRegInfo *ri) |
1689 | { | |
1690 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1691 | return pmevtyper_read(env, ri, counter); | |
1692 | } | |
1693 | ||
1694 | static void pmxevtyper_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
1695 | uint64_t value) | |
1696 | { | |
1697 | pmevtyper_write(env, ri, value, env->cp15.c9_pmselr & 31); | |
1698 | } | |
1699 | ||
fdb86656 WH |
1700 | static uint64_t pmxevtyper_read(CPUARMState *env, const ARMCPRegInfo *ri) |
1701 | { | |
5ecdd3e4 AL |
1702 | return pmevtyper_read(env, ri, env->cp15.c9_pmselr & 31); |
1703 | } | |
1704 | ||
1705 | static void pmevcntr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
1706 | uint64_t value, uint8_t counter) | |
1707 | { | |
47b385da PM |
1708 | if (!cpu_isar_feature(any_pmuv3p5, env_archcpu(env))) { |
1709 | /* Before FEAT_PMUv3p5, top 32 bits of event counters are RES0 */ | |
1710 | value &= MAKE_64BIT_MASK(0, 32); | |
1711 | } | |
5ecdd3e4 AL |
1712 | if (counter < pmu_num_counters(env)) { |
1713 | pmevcntr_op_start(env, counter); | |
1714 | env->cp15.c14_pmevcntr[counter] = value; | |
1715 | pmevcntr_op_finish(env, counter); | |
1716 | } | |
1717 | /* | |
1718 | * We opt to behave as a RAZ/WI when attempts to access PM[X]EVCNTR | |
1719 | * are CONSTRAINED UNPREDICTABLE. | |
fdb86656 | 1720 | */ |
5ecdd3e4 AL |
1721 | } |
1722 | ||
1723 | static uint64_t pmevcntr_read(CPUARMState *env, const ARMCPRegInfo *ri, | |
1724 | uint8_t counter) | |
1725 | { | |
1726 | if (counter < pmu_num_counters(env)) { | |
1727 | uint64_t ret; | |
1728 | pmevcntr_op_start(env, counter); | |
1729 | ret = env->cp15.c14_pmevcntr[counter]; | |
1730 | pmevcntr_op_finish(env, counter); | |
47b385da PM |
1731 | if (!cpu_isar_feature(any_pmuv3p5, env_archcpu(env))) { |
1732 | /* Before FEAT_PMUv3p5, top 32 bits of event counters are RES0 */ | |
1733 | ret &= MAKE_64BIT_MASK(0, 32); | |
1734 | } | |
5ecdd3e4 | 1735 | return ret; |
fdb86656 | 1736 | } else { |
9b37a28c FR |
1737 | /* |
1738 | * We opt to behave as a RAZ/WI when attempts to access PM[X]EVCNTR | |
1739 | * are CONSTRAINED UNPREDICTABLE. | |
1740 | */ | |
fdb86656 WH |
1741 | return 0; |
1742 | } | |
200ac0ef PM |
1743 | } |
1744 | ||
5ecdd3e4 AL |
1745 | static void pmevcntr_writefn(CPUARMState *env, const ARMCPRegInfo *ri, |
1746 | uint64_t value) | |
1747 | { | |
1748 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1749 | pmevcntr_write(env, ri, value, counter); | |
1750 | } | |
1751 | ||
1752 | static uint64_t pmevcntr_readfn(CPUARMState *env, const ARMCPRegInfo *ri) | |
1753 | { | |
1754 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1755 | return pmevcntr_read(env, ri, counter); | |
1756 | } | |
1757 | ||
1758 | static void pmevcntr_rawwrite(CPUARMState *env, const ARMCPRegInfo *ri, | |
1759 | uint64_t value) | |
1760 | { | |
1761 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1762 | assert(counter < pmu_num_counters(env)); | |
1763 | env->cp15.c14_pmevcntr[counter] = value; | |
1764 | pmevcntr_write(env, ri, value, counter); | |
1765 | } | |
1766 | ||
1767 | static uint64_t pmevcntr_rawread(CPUARMState *env, const ARMCPRegInfo *ri) | |
1768 | { | |
1769 | uint8_t counter = ((ri->crm & 3) << 3) | (ri->opc2 & 7); | |
1770 | assert(counter < pmu_num_counters(env)); | |
1771 | return env->cp15.c14_pmevcntr[counter]; | |
1772 | } | |
1773 | ||
1774 | static void pmxevcntr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
1775 | uint64_t value) | |
1776 | { | |
1777 | pmevcntr_write(env, ri, value, env->cp15.c9_pmselr & 31); | |
1778 | } | |
1779 | ||
1780 | static uint64_t pmxevcntr_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
1781 | { | |
1782 | return pmevcntr_read(env, ri, env->cp15.c9_pmselr & 31); | |
1783 | } | |
1784 | ||
c4241c7d | 1785 | static void pmuserenr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
200ac0ef PM |
1786 | uint64_t value) |
1787 | { | |
6ecd0b6b AB |
1788 | if (arm_feature(env, ARM_FEATURE_V8)) { |
1789 | env->cp15.c9_pmuserenr = value & 0xf; | |
1790 | } else { | |
1791 | env->cp15.c9_pmuserenr = value & 1; | |
1792 | } | |
200ac0ef PM |
1793 | } |
1794 | ||
c4241c7d PM |
1795 | static void pmintenset_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1796 | uint64_t value) | |
200ac0ef PM |
1797 | { |
1798 | /* We have no event counters so only the C bit can be changed */ | |
7ece99b1 | 1799 | value &= pmu_counter_mask(env); |
200ac0ef | 1800 | env->cp15.c9_pminten |= value; |
f4efb4b2 | 1801 | pmu_update_irq(env); |
200ac0ef PM |
1802 | } |
1803 | ||
c4241c7d PM |
1804 | static void pmintenclr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1805 | uint64_t value) | |
200ac0ef | 1806 | { |
7ece99b1 | 1807 | value &= pmu_counter_mask(env); |
200ac0ef | 1808 | env->cp15.c9_pminten &= ~value; |
f4efb4b2 | 1809 | pmu_update_irq(env); |
200ac0ef PM |
1810 | } |
1811 | ||
c4241c7d PM |
1812 | static void vbar_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1813 | uint64_t value) | |
8641136c | 1814 | { |
9b37a28c FR |
1815 | /* |
1816 | * Note that even though the AArch64 view of this register has bits | |
a505d7fe PM |
1817 | * [10:0] all RES0 we can only mask the bottom 5, to comply with the |
1818 | * architectural requirements for bits which are RES0 only in some | |
1819 | * contexts. (ARMv8 would permit us to do no masking at all, but ARMv7 | |
1820 | * requires the bottom five bits to be RAZ/WI because they're UNK/SBZP.) | |
1821 | */ | |
855ea66d | 1822 | raw_write(env, ri, value & ~0x1FULL); |
8641136c NR |
1823 | } |
1824 | ||
64e0e2de EI |
1825 | static void scr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
1826 | { | |
ea22747c | 1827 | /* Begin with base v8.0 state. */ |
06f2adcc | 1828 | uint64_t valid_mask = 0x3fff; |
2fc0cc0e | 1829 | ARMCPU *cpu = env_archcpu(env); |
d902ae75 | 1830 | uint64_t changed; |
ea22747c | 1831 | |
bfe43e3d RH |
1832 | /* |
1833 | * Because SCR_EL3 is the "real" cpreg and SCR is the alias, reset always | |
1834 | * passes the reginfo for SCR_EL3, which has type ARM_CP_STATE_AA64. | |
1835 | * Instead, choose the format based on the mode of EL3. | |
1836 | */ | |
1837 | if (arm_el_is_aa64(env, 3)) { | |
1838 | value |= SCR_FW | SCR_AW; /* RES1 */ | |
1839 | valid_mask &= ~SCR_NET; /* RES0 */ | |
252e8c69 | 1840 | |
6bcbb07a RH |
1841 | if (!cpu_isar_feature(aa64_aa32_el1, cpu) && |
1842 | !cpu_isar_feature(aa64_aa32_el2, cpu)) { | |
1843 | value |= SCR_RW; /* RAO/WI */ | |
1844 | } | |
da3d8b13 RH |
1845 | if (cpu_isar_feature(aa64_ras, cpu)) { |
1846 | valid_mask |= SCR_TERR; | |
1847 | } | |
252e8c69 RH |
1848 | if (cpu_isar_feature(aa64_lor, cpu)) { |
1849 | valid_mask |= SCR_TLOR; | |
1850 | } | |
1851 | if (cpu_isar_feature(aa64_pauth, cpu)) { | |
1852 | valid_mask |= SCR_API | SCR_APK; | |
1853 | } | |
926c1b97 RDC |
1854 | if (cpu_isar_feature(aa64_sel2, cpu)) { |
1855 | valid_mask |= SCR_EEL2; | |
1856 | } | |
8ddb300b RH |
1857 | if (cpu_isar_feature(aa64_mte, cpu)) { |
1858 | valid_mask |= SCR_ATA; | |
1859 | } | |
7cb1e618 RH |
1860 | if (cpu_isar_feature(aa64_scxtnum, cpu)) { |
1861 | valid_mask |= SCR_ENSCXT; | |
1862 | } | |
7ac61020 PM |
1863 | if (cpu_isar_feature(aa64_doublefault, cpu)) { |
1864 | valid_mask |= SCR_EASE | SCR_NMEA; | |
1865 | } | |
06f2adcc JF |
1866 | if (cpu_isar_feature(aa64_sme, cpu)) { |
1867 | valid_mask |= SCR_ENTP2; | |
1868 | } | |
08899b5c EI |
1869 | if (cpu_isar_feature(aa64_hcx, cpu)) { |
1870 | valid_mask |= SCR_HXEN; | |
1871 | } | |
ea22747c RH |
1872 | } else { |
1873 | valid_mask &= ~(SCR_RW | SCR_ST); | |
da3d8b13 RH |
1874 | if (cpu_isar_feature(aa32_ras, cpu)) { |
1875 | valid_mask |= SCR_TERR; | |
1876 | } | |
ea22747c | 1877 | } |
64e0e2de EI |
1878 | |
1879 | if (!arm_feature(env, ARM_FEATURE_EL2)) { | |
1880 | valid_mask &= ~SCR_HCE; | |
1881 | ||
9b37a28c FR |
1882 | /* |
1883 | * On ARMv7, SMD (or SCD as it is called in v7) is only | |
64e0e2de EI |
1884 | * supported if EL2 exists. The bit is UNK/SBZP when |
1885 | * EL2 is unavailable. In QEMU ARMv7, we force it to always zero | |
1886 | * when EL2 is unavailable. | |
4eb27640 | 1887 | * On ARMv8, this bit is always available. |
64e0e2de | 1888 | */ |
4eb27640 GB |
1889 | if (arm_feature(env, ARM_FEATURE_V7) && |
1890 | !arm_feature(env, ARM_FEATURE_V8)) { | |
64e0e2de EI |
1891 | valid_mask &= ~SCR_SMD; |
1892 | } | |
1893 | } | |
1894 | ||
1895 | /* Clear all-context RES0 bits. */ | |
1896 | value &= valid_mask; | |
d902ae75 RH |
1897 | changed = env->cp15.scr_el3 ^ value; |
1898 | env->cp15.scr_el3 = value; | |
1899 | ||
1900 | /* | |
1901 | * If SCR_EL3.NS changes, i.e. arm_is_secure_below_el3, then | |
1902 | * we must invalidate all TLBs below EL3. | |
1903 | */ | |
1904 | if (changed & SCR_NS) { | |
1905 | tlb_flush_by_mmuidx(env_cpu(env), (ARMMMUIdxBit_E10_0 | | |
1906 | ARMMMUIdxBit_E20_0 | | |
1907 | ARMMMUIdxBit_E10_1 | | |
1908 | ARMMMUIdxBit_E20_2 | | |
1909 | ARMMMUIdxBit_E10_1_PAN | | |
1910 | ARMMMUIdxBit_E20_2_PAN | | |
1911 | ARMMMUIdxBit_E2)); | |
1912 | } | |
64e0e2de EI |
1913 | } |
1914 | ||
10d0ef3e MN |
1915 | static void scr_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
1916 | { | |
1917 | /* | |
1918 | * scr_write will set the RES1 bits on an AArch64-only CPU. | |
1919 | * The reset value will be 0x30 on an AArch64-only CPU and 0 otherwise. | |
1920 | */ | |
1921 | scr_write(env, ri, 0); | |
1922 | } | |
1923 | ||
e2ce5fcd PM |
1924 | static CPAccessResult access_tid4(CPUARMState *env, |
1925 | const ARMCPRegInfo *ri, | |
1926 | bool isread) | |
630fcd4d | 1927 | { |
e2ce5fcd PM |
1928 | if (arm_current_el(env) == 1 && |
1929 | (arm_hcr_el2_eff(env) & (HCR_TID2 | HCR_TID4))) { | |
630fcd4d MZ |
1930 | return CP_ACCESS_TRAP_EL2; |
1931 | } | |
1932 | ||
1933 | return CP_ACCESS_OK; | |
1934 | } | |
1935 | ||
c4241c7d | 1936 | static uint64_t ccsidr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
776d4e5c | 1937 | { |
2fc0cc0e | 1938 | ARMCPU *cpu = env_archcpu(env); |
b85a1fd6 | 1939 | |
9b37a28c FR |
1940 | /* |
1941 | * Acquire the CSSELR index from the bank corresponding to the CCSIDR | |
b85a1fd6 FA |
1942 | * bank |
1943 | */ | |
1944 | uint32_t index = A32_BANKED_REG_GET(env, csselr, | |
1945 | ri->secure & ARM_CP_SECSTATE_S); | |
1946 | ||
1947 | return cpu->ccsidr[index]; | |
776d4e5c PM |
1948 | } |
1949 | ||
c4241c7d PM |
1950 | static void csselr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1951 | uint64_t value) | |
776d4e5c | 1952 | { |
8d5c773e | 1953 | raw_write(env, ri, value & 0xf); |
776d4e5c PM |
1954 | } |
1955 | ||
1090b9c6 PM |
1956 | static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
1957 | { | |
29a0af61 | 1958 | CPUState *cs = env_cpu(env); |
cc974d5c RDC |
1959 | bool el1 = arm_current_el(env) == 1; |
1960 | uint64_t hcr_el2 = el1 ? arm_hcr_el2_eff(env) : 0; | |
1090b9c6 PM |
1961 | uint64_t ret = 0; |
1962 | ||
cc974d5c | 1963 | if (hcr_el2 & HCR_IMO) { |
636540e9 PM |
1964 | if (cs->interrupt_request & CPU_INTERRUPT_VIRQ) { |
1965 | ret |= CPSR_I; | |
1966 | } | |
1967 | } else { | |
1968 | if (cs->interrupt_request & CPU_INTERRUPT_HARD) { | |
1969 | ret |= CPSR_I; | |
1970 | } | |
1090b9c6 | 1971 | } |
636540e9 | 1972 | |
cc974d5c | 1973 | if (hcr_el2 & HCR_FMO) { |
636540e9 PM |
1974 | if (cs->interrupt_request & CPU_INTERRUPT_VFIQ) { |
1975 | ret |= CPSR_F; | |
1976 | } | |
1977 | } else { | |
1978 | if (cs->interrupt_request & CPU_INTERRUPT_FIQ) { | |
1979 | ret |= CPSR_F; | |
1980 | } | |
1090b9c6 | 1981 | } |
636540e9 | 1982 | |
3c29632f RH |
1983 | if (hcr_el2 & HCR_AMO) { |
1984 | if (cs->interrupt_request & CPU_INTERRUPT_VSERR) { | |
1985 | ret |= CPSR_A; | |
1986 | } | |
1987 | } | |
1988 | ||
1090b9c6 PM |
1989 | return ret; |
1990 | } | |
1991 | ||
93fbc983 MZ |
1992 | static CPAccessResult access_aa64_tid1(CPUARMState *env, const ARMCPRegInfo *ri, |
1993 | bool isread) | |
1994 | { | |
1995 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TID1)) { | |
1996 | return CP_ACCESS_TRAP_EL2; | |
1997 | } | |
1998 | ||
1999 | return CP_ACCESS_OK; | |
2000 | } | |
2001 | ||
2002 | static CPAccessResult access_aa32_tid1(CPUARMState *env, const ARMCPRegInfo *ri, | |
2003 | bool isread) | |
2004 | { | |
2005 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
2006 | return access_aa64_tid1(env, ri, isread); | |
2007 | } | |
2008 | ||
2009 | return CP_ACCESS_OK; | |
2010 | } | |
2011 | ||
e9aa6c21 | 2012 | static const ARMCPRegInfo v7_cp_reginfo[] = { |
7d57f408 PM |
2013 | /* the old v6 WFI, UNPREDICTABLE in v7 but we choose to NOP */ |
2014 | { .name = "NOP", .cp = 15, .crn = 7, .crm = 0, .opc1 = 0, .opc2 = 4, | |
2015 | .access = PL1_W, .type = ARM_CP_NOP }, | |
9b37a28c FR |
2016 | /* |
2017 | * Performance monitors are implementation defined in v7, | |
200ac0ef | 2018 | * but with an ARM recommended set of registers, which we |
ac689a2e | 2019 | * follow. |
200ac0ef PM |
2020 | * |
2021 | * Performance registers fall into three categories: | |
2022 | * (a) always UNDEF in PL0, RW in PL1 (PMINTENSET, PMINTENCLR) | |
2023 | * (b) RO in PL0 (ie UNDEF on write), RW in PL1 (PMUSERENR) | |
2024 | * (c) UNDEF in PL0 if PMUSERENR.EN==0, otherwise accessible (all others) | |
2025 | * For the cases controlled by PMUSERENR we must set .access to PL0_RW | |
2026 | * or PL0_RO as appropriate and then check PMUSERENR in the helper fn. | |
2027 | */ | |
2028 | { .name = "PMCNTENSET", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 1, | |
7f4fbfb5 | 2029 | .access = PL0_RW, .type = ARM_CP_ALIAS | ARM_CP_IO, |
8521466b | 2030 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcnten), |
fcd25206 PM |
2031 | .writefn = pmcntenset_write, |
2032 | .accessfn = pmreg_access, | |
2033 | .raw_writefn = raw_write }, | |
7f4fbfb5 | 2034 | { .name = "PMCNTENSET_EL0", .state = ARM_CP_STATE_AA64, .type = ARM_CP_IO, |
8521466b AF |
2035 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 1, |
2036 | .access = PL0_RW, .accessfn = pmreg_access, | |
2037 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten), .resetvalue = 0, | |
2038 | .writefn = pmcntenset_write, .raw_writefn = raw_write }, | |
200ac0ef | 2039 | { .name = "PMCNTENCLR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 2, |
8521466b AF |
2040 | .access = PL0_RW, |
2041 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcnten), | |
fcd25206 PM |
2042 | .accessfn = pmreg_access, |
2043 | .writefn = pmcntenclr_write, | |
7f4fbfb5 | 2044 | .type = ARM_CP_ALIAS | ARM_CP_IO }, |
8521466b AF |
2045 | { .name = "PMCNTENCLR_EL0", .state = ARM_CP_STATE_AA64, |
2046 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 2, | |
2047 | .access = PL0_RW, .accessfn = pmreg_access, | |
7f4fbfb5 | 2048 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
8521466b AF |
2049 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten), |
2050 | .writefn = pmcntenclr_write }, | |
200ac0ef | 2051 | { .name = "PMOVSR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 3, |
f4efb4b2 | 2052 | .access = PL0_RW, .type = ARM_CP_IO, |
e4e91a21 | 2053 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr), |
fcd25206 PM |
2054 | .accessfn = pmreg_access, |
2055 | .writefn = pmovsr_write, | |
2056 | .raw_writefn = raw_write }, | |
978364f1 AF |
2057 | { .name = "PMOVSCLR_EL0", .state = ARM_CP_STATE_AA64, |
2058 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 3, | |
2059 | .access = PL0_RW, .accessfn = pmreg_access, | |
f4efb4b2 | 2060 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
978364f1 AF |
2061 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr), |
2062 | .writefn = pmovsr_write, | |
2063 | .raw_writefn = raw_write }, | |
200ac0ef | 2064 | { .name = "PMSWINC", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 4, |
f4efb4b2 AL |
2065 | .access = PL0_W, .accessfn = pmreg_access_swinc, |
2066 | .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
0d4bfd7d AL |
2067 | .writefn = pmswinc_write }, |
2068 | { .name = "PMSWINC_EL0", .state = ARM_CP_STATE_AA64, | |
2069 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 4, | |
f4efb4b2 AL |
2070 | .access = PL0_W, .accessfn = pmreg_access_swinc, |
2071 | .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
0d4bfd7d | 2072 | .writefn = pmswinc_write }, |
6b040780 WH |
2073 | { .name = "PMSELR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 5, |
2074 | .access = PL0_RW, .type = ARM_CP_ALIAS, | |
2075 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmselr), | |
6ecd0b6b | 2076 | .accessfn = pmreg_access_selr, .writefn = pmselr_write, |
6b040780 WH |
2077 | .raw_writefn = raw_write}, |
2078 | { .name = "PMSELR_EL0", .state = ARM_CP_STATE_AA64, | |
2079 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 5, | |
6ecd0b6b | 2080 | .access = PL0_RW, .accessfn = pmreg_access_selr, |
6b040780 WH |
2081 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmselr), |
2082 | .writefn = pmselr_write, .raw_writefn = raw_write, }, | |
200ac0ef | 2083 | { .name = "PMCCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 0, |
169c8938 | 2084 | .access = PL0_RW, .resetvalue = 0, .type = ARM_CP_ALIAS | ARM_CP_IO, |
421c7ebd | 2085 | .readfn = pmccntr_read, .writefn = pmccntr_write32, |
6ecd0b6b | 2086 | .accessfn = pmreg_access_ccntr }, |
8521466b AF |
2087 | { .name = "PMCCNTR_EL0", .state = ARM_CP_STATE_AA64, |
2088 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 0, | |
6ecd0b6b | 2089 | .access = PL0_RW, .accessfn = pmreg_access_ccntr, |
8521466b | 2090 | .type = ARM_CP_IO, |
980ebe87 AL |
2091 | .fieldoffset = offsetof(CPUARMState, cp15.c15_ccnt), |
2092 | .readfn = pmccntr_read, .writefn = pmccntr_write, | |
2093 | .raw_readfn = raw_read, .raw_writefn = raw_write, }, | |
4b8afa1f AL |
2094 | { .name = "PMCCFILTR", .cp = 15, .opc1 = 0, .crn = 14, .crm = 15, .opc2 = 7, |
2095 | .writefn = pmccfiltr_write_a32, .readfn = pmccfiltr_read_a32, | |
2096 | .access = PL0_RW, .accessfn = pmreg_access, | |
2097 | .type = ARM_CP_ALIAS | ARM_CP_IO, | |
2098 | .resetvalue = 0, }, | |
8521466b AF |
2099 | { .name = "PMCCFILTR_EL0", .state = ARM_CP_STATE_AA64, |
2100 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 15, .opc2 = 7, | |
980ebe87 | 2101 | .writefn = pmccfiltr_write, .raw_writefn = raw_write, |
8521466b AF |
2102 | .access = PL0_RW, .accessfn = pmreg_access, |
2103 | .type = ARM_CP_IO, | |
2104 | .fieldoffset = offsetof(CPUARMState, cp15.pmccfiltr_el0), | |
2105 | .resetvalue = 0, }, | |
200ac0ef | 2106 | { .name = "PMXEVTYPER", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 1, |
5ecdd3e4 AL |
2107 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
2108 | .accessfn = pmreg_access, | |
fdb86656 WH |
2109 | .writefn = pmxevtyper_write, .readfn = pmxevtyper_read }, |
2110 | { .name = "PMXEVTYPER_EL0", .state = ARM_CP_STATE_AA64, | |
2111 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 1, | |
5ecdd3e4 AL |
2112 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
2113 | .accessfn = pmreg_access, | |
fdb86656 | 2114 | .writefn = pmxevtyper_write, .readfn = pmxevtyper_read }, |
200ac0ef | 2115 | { .name = "PMXEVCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 2, |
5ecdd3e4 AL |
2116 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
2117 | .accessfn = pmreg_access_xevcntr, | |
2118 | .writefn = pmxevcntr_write, .readfn = pmxevcntr_read }, | |
2119 | { .name = "PMXEVCNTR_EL0", .state = ARM_CP_STATE_AA64, | |
2120 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 2, | |
2121 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
2122 | .accessfn = pmreg_access_xevcntr, | |
2123 | .writefn = pmxevcntr_write, .readfn = pmxevcntr_read }, | |
200ac0ef | 2124 | { .name = "PMUSERENR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 0, |
1fce1ba9 | 2125 | .access = PL0_R | PL1_RW, .accessfn = access_tpm, |
e4e91a21 | 2126 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmuserenr), |
200ac0ef | 2127 | .resetvalue = 0, |
d4e6df63 | 2128 | .writefn = pmuserenr_write, .raw_writefn = raw_write }, |
8a83ffc2 AF |
2129 | { .name = "PMUSERENR_EL0", .state = ARM_CP_STATE_AA64, |
2130 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 14, .opc2 = 0, | |
1fce1ba9 | 2131 | .access = PL0_R | PL1_RW, .accessfn = access_tpm, .type = ARM_CP_ALIAS, |
8a83ffc2 AF |
2132 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr), |
2133 | .resetvalue = 0, | |
2134 | .writefn = pmuserenr_write, .raw_writefn = raw_write }, | |
200ac0ef | 2135 | { .name = "PMINTENSET", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 1, |
1fce1ba9 | 2136 | .access = PL1_RW, .accessfn = access_tpm, |
b7d793ad | 2137 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
e6ec5457 | 2138 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pminten), |
200ac0ef | 2139 | .resetvalue = 0, |
d4e6df63 | 2140 | .writefn = pmintenset_write, .raw_writefn = raw_write }, |
e6ec5457 WH |
2141 | { .name = "PMINTENSET_EL1", .state = ARM_CP_STATE_AA64, |
2142 | .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 1, | |
2143 | .access = PL1_RW, .accessfn = access_tpm, | |
2144 | .type = ARM_CP_IO, | |
2145 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), | |
2146 | .writefn = pmintenset_write, .raw_writefn = raw_write, | |
2147 | .resetvalue = 0x0 }, | |
200ac0ef | 2148 | { .name = "PMINTENCLR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 2, |
fc5f6856 | 2149 | .access = PL1_RW, .accessfn = access_tpm, |
887c0f15 | 2150 | .type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW, |
200ac0ef | 2151 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), |
b061a82b | 2152 | .writefn = pmintenclr_write, }, |
978364f1 AF |
2153 | { .name = "PMINTENCLR_EL1", .state = ARM_CP_STATE_AA64, |
2154 | .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 2, | |
fc5f6856 | 2155 | .access = PL1_RW, .accessfn = access_tpm, |
887c0f15 | 2156 | .type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW, |
978364f1 AF |
2157 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), |
2158 | .writefn = pmintenclr_write }, | |
7da845b0 PM |
2159 | { .name = "CCSIDR", .state = ARM_CP_STATE_BOTH, |
2160 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 0, | |
630fcd4d | 2161 | .access = PL1_R, |
e2ce5fcd | 2162 | .accessfn = access_tid4, |
630fcd4d | 2163 | .readfn = ccsidr_read, .type = ARM_CP_NO_RAW }, |
7da845b0 PM |
2164 | { .name = "CSSELR", .state = ARM_CP_STATE_BOTH, |
2165 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 2, .opc2 = 0, | |
630fcd4d | 2166 | .access = PL1_RW, |
e2ce5fcd | 2167 | .accessfn = access_tid4, |
630fcd4d | 2168 | .writefn = csselr_write, .resetvalue = 0, |
b85a1fd6 FA |
2169 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.csselr_s), |
2170 | offsetof(CPUARMState, cp15.csselr_ns) } }, | |
9b37a28c FR |
2171 | /* |
2172 | * Auxiliary ID register: this actually has an IMPDEF value but for now | |
776d4e5c PM |
2173 | * just RAZ for all cores: |
2174 | */ | |
0ff644a7 PM |
2175 | { .name = "AIDR", .state = ARM_CP_STATE_BOTH, |
2176 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 7, | |
93fbc983 MZ |
2177 | .access = PL1_R, .type = ARM_CP_CONST, |
2178 | .accessfn = access_aa64_tid1, | |
2179 | .resetvalue = 0 }, | |
9b37a28c FR |
2180 | /* |
2181 | * Auxiliary fault status registers: these also are IMPDEF, and we | |
f32cdad5 PM |
2182 | * choose to RAZ/WI for all cores. |
2183 | */ | |
2184 | { .name = "AFSR0_EL1", .state = ARM_CP_STATE_BOTH, | |
2185 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 1, .opc2 = 0, | |
84929218 RH |
2186 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
2187 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
f32cdad5 PM |
2188 | { .name = "AFSR1_EL1", .state = ARM_CP_STATE_BOTH, |
2189 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 1, .opc2 = 1, | |
84929218 RH |
2190 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
2191 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
9b37a28c FR |
2192 | /* |
2193 | * MAIR can just read-as-written because we don't implement caches | |
b0fe2427 PM |
2194 | * and so don't need to care about memory attributes. |
2195 | */ | |
2196 | { .name = "MAIR_EL1", .state = ARM_CP_STATE_AA64, | |
2197 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, | |
84929218 RH |
2198 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
2199 | .fieldoffset = offsetof(CPUARMState, cp15.mair_el[1]), | |
b0fe2427 | 2200 | .resetvalue = 0 }, |
4cfb8ad8 PM |
2201 | { .name = "MAIR_EL3", .state = ARM_CP_STATE_AA64, |
2202 | .opc0 = 3, .opc1 = 6, .crn = 10, .crm = 2, .opc2 = 0, | |
2203 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.mair_el[3]), | |
2204 | .resetvalue = 0 }, | |
9b37a28c FR |
2205 | /* |
2206 | * For non-long-descriptor page tables these are PRRR and NMRR; | |
b0fe2427 | 2207 | * regardless they still act as reads-as-written for QEMU. |
b0fe2427 | 2208 | */ |
9b37a28c FR |
2209 | /* |
2210 | * MAIR0/1 are defined separately from their 64-bit counterpart which | |
be693c87 GB |
2211 | * allows them to assign the correct fieldoffset based on the endianness |
2212 | * handled in the field definitions. | |
2213 | */ | |
a903c449 | 2214 | { .name = "MAIR0", .state = ARM_CP_STATE_AA32, |
84929218 RH |
2215 | .cp = 15, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, |
2216 | .access = PL1_RW, .accessfn = access_tvm_trvm, | |
be693c87 GB |
2217 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.mair0_s), |
2218 | offsetof(CPUARMState, cp15.mair0_ns) }, | |
b0fe2427 | 2219 | .resetfn = arm_cp_reset_ignore }, |
a903c449 | 2220 | { .name = "MAIR1", .state = ARM_CP_STATE_AA32, |
84929218 RH |
2221 | .cp = 15, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 1, |
2222 | .access = PL1_RW, .accessfn = access_tvm_trvm, | |
be693c87 GB |
2223 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.mair1_s), |
2224 | offsetof(CPUARMState, cp15.mair1_ns) }, | |
b0fe2427 | 2225 | .resetfn = arm_cp_reset_ignore }, |
1090b9c6 PM |
2226 | { .name = "ISR_EL1", .state = ARM_CP_STATE_BOTH, |
2227 | .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 1, .opc2 = 0, | |
7a0e58fa | 2228 | .type = ARM_CP_NO_RAW, .access = PL1_R, .readfn = isr_read }, |
995939a6 PM |
2229 | /* 32 bit ITLB invalidates */ |
2230 | { .name = "ITLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 0, | |
30881b73 RH |
2231 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2232 | .writefn = tlbiall_write }, | |
995939a6 | 2233 | { .name = "ITLBIMVA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 1, |
30881b73 RH |
2234 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2235 | .writefn = tlbimva_write }, | |
995939a6 | 2236 | { .name = "ITLBIASID", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 2, |
30881b73 RH |
2237 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2238 | .writefn = tlbiasid_write }, | |
995939a6 PM |
2239 | /* 32 bit DTLB invalidates */ |
2240 | { .name = "DTLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 0, | |
30881b73 RH |
2241 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2242 | .writefn = tlbiall_write }, | |
995939a6 | 2243 | { .name = "DTLBIMVA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 1, |
30881b73 RH |
2244 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2245 | .writefn = tlbimva_write }, | |
995939a6 | 2246 | { .name = "DTLBIASID", .cp = 15, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 2, |
30881b73 RH |
2247 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2248 | .writefn = tlbiasid_write }, | |
995939a6 PM |
2249 | /* 32 bit TLB invalidates */ |
2250 | { .name = "TLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 0, | |
30881b73 RH |
2251 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2252 | .writefn = tlbiall_write }, | |
995939a6 | 2253 | { .name = "TLBIMVA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 1, |
30881b73 RH |
2254 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2255 | .writefn = tlbimva_write }, | |
995939a6 | 2256 | { .name = "TLBIASID", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 2, |
30881b73 RH |
2257 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2258 | .writefn = tlbiasid_write }, | |
995939a6 | 2259 | { .name = "TLBIMVAA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 3, |
30881b73 RH |
2260 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2261 | .writefn = tlbimvaa_write }, | |
995939a6 PM |
2262 | }; |
2263 | ||
2264 | static const ARMCPRegInfo v7mp_cp_reginfo[] = { | |
2265 | /* 32 bit TLB invalidates, Inner Shareable */ | |
2266 | { .name = "TLBIALLIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 0, | |
0f66d223 | 2267 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
30881b73 | 2268 | .writefn = tlbiall_is_write }, |
995939a6 | 2269 | { .name = "TLBIMVAIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 1, |
0f66d223 | 2270 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
30881b73 | 2271 | .writefn = tlbimva_is_write }, |
995939a6 | 2272 | { .name = "TLBIASIDIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 2, |
0f66d223 | 2273 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
fa439fc5 | 2274 | .writefn = tlbiasid_is_write }, |
995939a6 | 2275 | { .name = "TLBIMVAAIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 3, |
0f66d223 | 2276 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
fa439fc5 | 2277 | .writefn = tlbimvaa_is_write }, |
e9aa6c21 PM |
2278 | }; |
2279 | ||
327dd510 AL |
2280 | static const ARMCPRegInfo pmovsset_cp_reginfo[] = { |
2281 | /* PMOVSSET is not implemented in v7 before v7ve */ | |
2282 | { .name = "PMOVSSET", .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 3, | |
2283 | .access = PL0_RW, .accessfn = pmreg_access, | |
f4efb4b2 | 2284 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
327dd510 AL |
2285 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr), |
2286 | .writefn = pmovsset_write, | |
2287 | .raw_writefn = raw_write }, | |
2288 | { .name = "PMOVSSET_EL0", .state = ARM_CP_STATE_AA64, | |
2289 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 14, .opc2 = 3, | |
2290 | .access = PL0_RW, .accessfn = pmreg_access, | |
f4efb4b2 | 2291 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
327dd510 AL |
2292 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr), |
2293 | .writefn = pmovsset_write, | |
2294 | .raw_writefn = raw_write }, | |
327dd510 AL |
2295 | }; |
2296 | ||
c4241c7d PM |
2297 | static void teecr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
2298 | uint64_t value) | |
c326b979 PM |
2299 | { |
2300 | value &= 1; | |
2301 | env->teecr = value; | |
c326b979 PM |
2302 | } |
2303 | ||
cc7613bf PM |
2304 | static CPAccessResult teecr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2305 | bool isread) | |
2306 | { | |
2307 | /* | |
2308 | * HSTR.TTEE only exists in v7A, not v8A, but v8A doesn't have T2EE | |
2309 | * at all, so we don't need to check whether we're v8A. | |
2310 | */ | |
2311 | if (arm_current_el(env) < 2 && !arm_is_secure_below_el3(env) && | |
2312 | (env->cp15.hstr_el2 & HSTR_TTEE)) { | |
2313 | return CP_ACCESS_TRAP_EL2; | |
2314 | } | |
2315 | return CP_ACCESS_OK; | |
2316 | } | |
2317 | ||
3f208fd7 PM |
2318 | static CPAccessResult teehbr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2319 | bool isread) | |
c326b979 | 2320 | { |
dcbff19b | 2321 | if (arm_current_el(env) == 0 && (env->teecr & 1)) { |
92611c00 | 2322 | return CP_ACCESS_TRAP; |
c326b979 | 2323 | } |
cc7613bf | 2324 | return teecr_access(env, ri, isread); |
c326b979 PM |
2325 | } |
2326 | ||
2327 | static const ARMCPRegInfo t2ee_cp_reginfo[] = { | |
2328 | { .name = "TEECR", .cp = 14, .crn = 0, .crm = 0, .opc1 = 6, .opc2 = 0, | |
2329 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, teecr), | |
2330 | .resetvalue = 0, | |
cc7613bf | 2331 | .writefn = teecr_write, .accessfn = teecr_access }, |
c326b979 PM |
2332 | { .name = "TEEHBR", .cp = 14, .crn = 1, .crm = 0, .opc1 = 6, .opc2 = 0, |
2333 | .access = PL0_RW, .fieldoffset = offsetof(CPUARMState, teehbr), | |
92611c00 | 2334 | .accessfn = teehbr_access, .resetvalue = 0 }, |
c326b979 PM |
2335 | }; |
2336 | ||
4d31c596 | 2337 | static const ARMCPRegInfo v6k_cp_reginfo[] = { |
e4fe830b PM |
2338 | { .name = "TPIDR_EL0", .state = ARM_CP_STATE_AA64, |
2339 | .opc0 = 3, .opc1 = 3, .opc2 = 2, .crn = 13, .crm = 0, | |
2340 | .access = PL0_RW, | |
54bf36ed | 2341 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[0]), .resetvalue = 0 }, |
4d31c596 PM |
2342 | { .name = "TPIDRURW", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 2, |
2343 | .access = PL0_RW, | |
54bf36ed FA |
2344 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrurw_s), |
2345 | offsetoflow32(CPUARMState, cp15.tpidrurw_ns) }, | |
e4fe830b PM |
2346 | .resetfn = arm_cp_reset_ignore }, |
2347 | { .name = "TPIDRRO_EL0", .state = ARM_CP_STATE_AA64, | |
2348 | .opc0 = 3, .opc1 = 3, .opc2 = 3, .crn = 13, .crm = 0, | |
04215eb1 | 2349 | .access = PL0_R | PL1_W, |
54bf36ed FA |
2350 | .fieldoffset = offsetof(CPUARMState, cp15.tpidrro_el[0]), |
2351 | .resetvalue = 0}, | |
4d31c596 | 2352 | { .name = "TPIDRURO", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 3, |
04215eb1 | 2353 | .access = PL0_R | PL1_W, |
54bf36ed FA |
2354 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidruro_s), |
2355 | offsetoflow32(CPUARMState, cp15.tpidruro_ns) }, | |
e4fe830b | 2356 | .resetfn = arm_cp_reset_ignore }, |
54bf36ed | 2357 | { .name = "TPIDR_EL1", .state = ARM_CP_STATE_AA64, |
e4fe830b | 2358 | .opc0 = 3, .opc1 = 0, .opc2 = 4, .crn = 13, .crm = 0, |
4d31c596 | 2359 | .access = PL1_RW, |
54bf36ed FA |
2360 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[1]), .resetvalue = 0 }, |
2361 | { .name = "TPIDRPRW", .opc1 = 0, .cp = 15, .crn = 13, .crm = 0, .opc2 = 4, | |
2362 | .access = PL1_RW, | |
2363 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrprw_s), | |
2364 | offsetoflow32(CPUARMState, cp15.tpidrprw_ns) }, | |
2365 | .resetvalue = 0 }, | |
4d31c596 PM |
2366 | }; |
2367 | ||
55d284af PM |
2368 | #ifndef CONFIG_USER_ONLY |
2369 | ||
3f208fd7 PM |
2370 | static CPAccessResult gt_cntfrq_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2371 | bool isread) | |
00108f2d | 2372 | { |
9b37a28c FR |
2373 | /* |
2374 | * CNTFRQ: not visible from PL0 if both PL0PCTEN and PL0VCTEN are zero. | |
75502672 PM |
2375 | * Writable only at the highest implemented exception level. |
2376 | */ | |
2377 | int el = arm_current_el(env); | |
5bc84371 RH |
2378 | uint64_t hcr; |
2379 | uint32_t cntkctl; | |
75502672 PM |
2380 | |
2381 | switch (el) { | |
2382 | case 0: | |
5bc84371 RH |
2383 | hcr = arm_hcr_el2_eff(env); |
2384 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2385 | cntkctl = env->cp15.cnthctl_el2; | |
2386 | } else { | |
2387 | cntkctl = env->cp15.c14_cntkctl; | |
2388 | } | |
2389 | if (!extract32(cntkctl, 0, 2)) { | |
75502672 PM |
2390 | return CP_ACCESS_TRAP; |
2391 | } | |
2392 | break; | |
2393 | case 1: | |
2394 | if (!isread && ri->state == ARM_CP_STATE_AA32 && | |
2395 | arm_is_secure_below_el3(env)) { | |
2396 | /* Accesses from 32-bit Secure EL1 UNDEF (*not* trap to EL3!) */ | |
2397 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
2398 | } | |
2399 | break; | |
2400 | case 2: | |
2401 | case 3: | |
2402 | break; | |
00108f2d | 2403 | } |
75502672 PM |
2404 | |
2405 | if (!isread && el < arm_highest_el(env)) { | |
2406 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
2407 | } | |
2408 | ||
00108f2d PM |
2409 | return CP_ACCESS_OK; |
2410 | } | |
2411 | ||
3f208fd7 PM |
2412 | static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx, |
2413 | bool isread) | |
00108f2d | 2414 | { |
0b6440af | 2415 | unsigned int cur_el = arm_current_el(env); |
e6ef0169 | 2416 | bool has_el2 = arm_is_el2_enabled(env); |
5bc84371 | 2417 | uint64_t hcr = arm_hcr_el2_eff(env); |
0b6440af | 2418 | |
5bc84371 RH |
2419 | switch (cur_el) { |
2420 | case 0: | |
2421 | /* If HCR_EL2.<E2H,TGE> == '11': check CNTHCTL_EL2.EL0[PV]CTEN. */ | |
2422 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2423 | return (extract32(env->cp15.cnthctl_el2, timeridx, 1) | |
2424 | ? CP_ACCESS_OK : CP_ACCESS_TRAP_EL2); | |
2425 | } | |
0b6440af | 2426 | |
5bc84371 RH |
2427 | /* CNT[PV]CT: not visible from PL0 if EL0[PV]CTEN is zero */ |
2428 | if (!extract32(env->cp15.c14_cntkctl, timeridx, 1)) { | |
2429 | return CP_ACCESS_TRAP; | |
2430 | } | |
2431 | ||
2432 | /* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PCTEN. */ | |
2433 | if (hcr & HCR_E2H) { | |
2434 | if (timeridx == GTIMER_PHYS && | |
2435 | !extract32(env->cp15.cnthctl_el2, 10, 1)) { | |
2436 | return CP_ACCESS_TRAP_EL2; | |
2437 | } | |
2438 | } else { | |
2439 | /* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */ | |
e6ef0169 | 2440 | if (has_el2 && timeridx == GTIMER_PHYS && |
5bc84371 RH |
2441 | !extract32(env->cp15.cnthctl_el2, 1, 1)) { |
2442 | return CP_ACCESS_TRAP_EL2; | |
2443 | } | |
2444 | } | |
2445 | break; | |
2446 | ||
2447 | case 1: | |
2448 | /* Check CNTHCTL_EL2.EL1PCTEN, which changes location based on E2H. */ | |
e6ef0169 | 2449 | if (has_el2 && timeridx == GTIMER_PHYS && |
5bc84371 RH |
2450 | (hcr & HCR_E2H |
2451 | ? !extract32(env->cp15.cnthctl_el2, 10, 1) | |
2452 | : !extract32(env->cp15.cnthctl_el2, 0, 1))) { | |
2453 | return CP_ACCESS_TRAP_EL2; | |
2454 | } | |
2455 | break; | |
0b6440af | 2456 | } |
00108f2d PM |
2457 | return CP_ACCESS_OK; |
2458 | } | |
2459 | ||
3f208fd7 PM |
2460 | static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx, |
2461 | bool isread) | |
00108f2d | 2462 | { |
0b6440af | 2463 | unsigned int cur_el = arm_current_el(env); |
e6ef0169 | 2464 | bool has_el2 = arm_is_el2_enabled(env); |
5bc84371 | 2465 | uint64_t hcr = arm_hcr_el2_eff(env); |
0b6440af | 2466 | |
5bc84371 RH |
2467 | switch (cur_el) { |
2468 | case 0: | |
2469 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2470 | /* If HCR_EL2.<E2H,TGE> == '11': check CNTHCTL_EL2.EL0[PV]TEN. */ | |
2471 | return (extract32(env->cp15.cnthctl_el2, 9 - timeridx, 1) | |
2472 | ? CP_ACCESS_OK : CP_ACCESS_TRAP_EL2); | |
2473 | } | |
0b6440af | 2474 | |
5bc84371 RH |
2475 | /* |
2476 | * CNT[PV]_CVAL, CNT[PV]_CTL, CNT[PV]_TVAL: not visible from | |
2477 | * EL0 if EL0[PV]TEN is zero. | |
2478 | */ | |
2479 | if (!extract32(env->cp15.c14_cntkctl, 9 - timeridx, 1)) { | |
2480 | return CP_ACCESS_TRAP; | |
2481 | } | |
2482 | /* fall through */ | |
2483 | ||
2484 | case 1: | |
e6ef0169 | 2485 | if (has_el2 && timeridx == GTIMER_PHYS) { |
5bc84371 RH |
2486 | if (hcr & HCR_E2H) { |
2487 | /* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PTEN. */ | |
2488 | if (!extract32(env->cp15.cnthctl_el2, 11, 1)) { | |
2489 | return CP_ACCESS_TRAP_EL2; | |
2490 | } | |
2491 | } else { | |
2492 | /* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */ | |
2493 | if (!extract32(env->cp15.cnthctl_el2, 1, 1)) { | |
2494 | return CP_ACCESS_TRAP_EL2; | |
2495 | } | |
2496 | } | |
2497 | } | |
2498 | break; | |
0b6440af | 2499 | } |
00108f2d PM |
2500 | return CP_ACCESS_OK; |
2501 | } | |
2502 | ||
2503 | static CPAccessResult gt_pct_access(CPUARMState *env, | |
3f208fd7 PM |
2504 | const ARMCPRegInfo *ri, |
2505 | bool isread) | |
00108f2d | 2506 | { |
3f208fd7 | 2507 | return gt_counter_access(env, GTIMER_PHYS, isread); |
00108f2d PM |
2508 | } |
2509 | ||
2510 | static CPAccessResult gt_vct_access(CPUARMState *env, | |
3f208fd7 PM |
2511 | const ARMCPRegInfo *ri, |
2512 | bool isread) | |
00108f2d | 2513 | { |
3f208fd7 | 2514 | return gt_counter_access(env, GTIMER_VIRT, isread); |
00108f2d PM |
2515 | } |
2516 | ||
3f208fd7 PM |
2517 | static CPAccessResult gt_ptimer_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2518 | bool isread) | |
00108f2d | 2519 | { |
3f208fd7 | 2520 | return gt_timer_access(env, GTIMER_PHYS, isread); |
00108f2d PM |
2521 | } |
2522 | ||
3f208fd7 PM |
2523 | static CPAccessResult gt_vtimer_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2524 | bool isread) | |
00108f2d | 2525 | { |
3f208fd7 | 2526 | return gt_timer_access(env, GTIMER_VIRT, isread); |
00108f2d PM |
2527 | } |
2528 | ||
b4d3978c | 2529 | static CPAccessResult gt_stimer_access(CPUARMState *env, |
3f208fd7 PM |
2530 | const ARMCPRegInfo *ri, |
2531 | bool isread) | |
b4d3978c | 2532 | { |
9b37a28c FR |
2533 | /* |
2534 | * The AArch64 register view of the secure physical timer is | |
b4d3978c PM |
2535 | * always accessible from EL3, and configurably accessible from |
2536 | * Secure EL1. | |
2537 | */ | |
2538 | switch (arm_current_el(env)) { | |
2539 | case 1: | |
2540 | if (!arm_is_secure(env)) { | |
2541 | return CP_ACCESS_TRAP; | |
2542 | } | |
2543 | if (!(env->cp15.scr_el3 & SCR_ST)) { | |
2544 | return CP_ACCESS_TRAP_EL3; | |
2545 | } | |
2546 | return CP_ACCESS_OK; | |
2547 | case 0: | |
2548 | case 2: | |
2549 | return CP_ACCESS_TRAP; | |
2550 | case 3: | |
2551 | return CP_ACCESS_OK; | |
2552 | default: | |
2553 | g_assert_not_reached(); | |
2554 | } | |
2555 | } | |
2556 | ||
55d284af PM |
2557 | static uint64_t gt_get_countervalue(CPUARMState *env) |
2558 | { | |
7def8754 AJ |
2559 | ARMCPU *cpu = env_archcpu(env); |
2560 | ||
2561 | return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / gt_cntfrq_period_ns(cpu); | |
55d284af PM |
2562 | } |
2563 | ||
2564 | static void gt_recalc_timer(ARMCPU *cpu, int timeridx) | |
2565 | { | |
2566 | ARMGenericTimer *gt = &cpu->env.cp15.c14_timer[timeridx]; | |
2567 | ||
2568 | if (gt->ctl & 1) { | |
9b37a28c FR |
2569 | /* |
2570 | * Timer enabled: calculate and set current ISTATUS, irq, and | |
55d284af PM |
2571 | * reset timer to when ISTATUS next has to change |
2572 | */ | |
edac4d8a EI |
2573 | uint64_t offset = timeridx == GTIMER_VIRT ? |
2574 | cpu->env.cp15.cntvoff_el2 : 0; | |
55d284af PM |
2575 | uint64_t count = gt_get_countervalue(&cpu->env); |
2576 | /* Note that this must be unsigned 64 bit arithmetic: */ | |
edac4d8a | 2577 | int istatus = count - offset >= gt->cval; |
55d284af | 2578 | uint64_t nexttick; |
194cbc49 | 2579 | int irqstate; |
55d284af PM |
2580 | |
2581 | gt->ctl = deposit32(gt->ctl, 2, 1, istatus); | |
194cbc49 PM |
2582 | |
2583 | irqstate = (istatus && !(gt->ctl & 2)); | |
2584 | qemu_set_irq(cpu->gt_timer_outputs[timeridx], irqstate); | |
2585 | ||
55d284af PM |
2586 | if (istatus) { |
2587 | /* Next transition is when count rolls back over to zero */ | |
2588 | nexttick = UINT64_MAX; | |
2589 | } else { | |
2590 | /* Next transition is when we hit cval */ | |
edac4d8a | 2591 | nexttick = gt->cval + offset; |
55d284af | 2592 | } |
9b37a28c FR |
2593 | /* |
2594 | * Note that the desired next expiry time might be beyond the | |
55d284af PM |
2595 | * signed-64-bit range of a QEMUTimer -- in this case we just |
2596 | * set the timer for as far in the future as possible. When the | |
2597 | * timer expires we will reset the timer for any remaining period. | |
2598 | */ | |
7def8754 | 2599 | if (nexttick > INT64_MAX / gt_cntfrq_period_ns(cpu)) { |
4a0245b6 AJ |
2600 | timer_mod_ns(cpu->gt_timer[timeridx], INT64_MAX); |
2601 | } else { | |
2602 | timer_mod(cpu->gt_timer[timeridx], nexttick); | |
55d284af | 2603 | } |
194cbc49 | 2604 | trace_arm_gt_recalc(timeridx, irqstate, nexttick); |
55d284af PM |
2605 | } else { |
2606 | /* Timer disabled: ISTATUS and timer output always clear */ | |
2607 | gt->ctl &= ~4; | |
2608 | qemu_set_irq(cpu->gt_timer_outputs[timeridx], 0); | |
bc72ad67 | 2609 | timer_del(cpu->gt_timer[timeridx]); |
194cbc49 | 2610 | trace_arm_gt_recalc_disabled(timeridx); |
55d284af PM |
2611 | } |
2612 | } | |
2613 | ||
0e3eca4c EI |
2614 | static void gt_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri, |
2615 | int timeridx) | |
55d284af | 2616 | { |
2fc0cc0e | 2617 | ARMCPU *cpu = env_archcpu(env); |
55d284af | 2618 | |
bc72ad67 | 2619 | timer_del(cpu->gt_timer[timeridx]); |
55d284af PM |
2620 | } |
2621 | ||
c4241c7d | 2622 | static uint64_t gt_cnt_read(CPUARMState *env, const ARMCPRegInfo *ri) |
55d284af | 2623 | { |
c4241c7d | 2624 | return gt_get_countervalue(env); |
55d284af PM |
2625 | } |
2626 | ||
53d1f856 RH |
2627 | static uint64_t gt_virt_cnt_offset(CPUARMState *env) |
2628 | { | |
2629 | uint64_t hcr; | |
2630 | ||
2631 | switch (arm_current_el(env)) { | |
2632 | case 2: | |
2633 | hcr = arm_hcr_el2_eff(env); | |
2634 | if (hcr & HCR_E2H) { | |
2635 | return 0; | |
2636 | } | |
2637 | break; | |
2638 | case 0: | |
2639 | hcr = arm_hcr_el2_eff(env); | |
2640 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2641 | return 0; | |
2642 | } | |
2643 | break; | |
2644 | } | |
2645 | ||
2646 | return env->cp15.cntvoff_el2; | |
2647 | } | |
2648 | ||
edac4d8a EI |
2649 | static uint64_t gt_virt_cnt_read(CPUARMState *env, const ARMCPRegInfo *ri) |
2650 | { | |
53d1f856 | 2651 | return gt_get_countervalue(env) - gt_virt_cnt_offset(env); |
edac4d8a EI |
2652 | } |
2653 | ||
c4241c7d | 2654 | static void gt_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, |
0e3eca4c | 2655 | int timeridx, |
c4241c7d | 2656 | uint64_t value) |
55d284af | 2657 | { |
194cbc49 | 2658 | trace_arm_gt_cval_write(timeridx, value); |
55d284af | 2659 | env->cp15.c14_timer[timeridx].cval = value; |
2fc0cc0e | 2660 | gt_recalc_timer(env_archcpu(env), timeridx); |
55d284af | 2661 | } |
c4241c7d | 2662 | |
0e3eca4c EI |
2663 | static uint64_t gt_tval_read(CPUARMState *env, const ARMCPRegInfo *ri, |
2664 | int timeridx) | |
55d284af | 2665 | { |
53d1f856 RH |
2666 | uint64_t offset = 0; |
2667 | ||
2668 | switch (timeridx) { | |
2669 | case GTIMER_VIRT: | |
8c94b071 | 2670 | case GTIMER_HYPVIRT: |
53d1f856 RH |
2671 | offset = gt_virt_cnt_offset(env); |
2672 | break; | |
2673 | } | |
55d284af | 2674 | |
c4241c7d | 2675 | return (uint32_t)(env->cp15.c14_timer[timeridx].cval - |
edac4d8a | 2676 | (gt_get_countervalue(env) - offset)); |
55d284af PM |
2677 | } |
2678 | ||
c4241c7d | 2679 | static void gt_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, |
0e3eca4c | 2680 | int timeridx, |
c4241c7d | 2681 | uint64_t value) |
55d284af | 2682 | { |
53d1f856 RH |
2683 | uint64_t offset = 0; |
2684 | ||
2685 | switch (timeridx) { | |
2686 | case GTIMER_VIRT: | |
8c94b071 | 2687 | case GTIMER_HYPVIRT: |
53d1f856 RH |
2688 | offset = gt_virt_cnt_offset(env); |
2689 | break; | |
2690 | } | |
55d284af | 2691 | |
194cbc49 | 2692 | trace_arm_gt_tval_write(timeridx, value); |
edac4d8a | 2693 | env->cp15.c14_timer[timeridx].cval = gt_get_countervalue(env) - offset + |
18084b2f | 2694 | sextract64(value, 0, 32); |
2fc0cc0e | 2695 | gt_recalc_timer(env_archcpu(env), timeridx); |
55d284af PM |
2696 | } |
2697 | ||
c4241c7d | 2698 | static void gt_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, |
0e3eca4c | 2699 | int timeridx, |
c4241c7d | 2700 | uint64_t value) |
55d284af | 2701 | { |
2fc0cc0e | 2702 | ARMCPU *cpu = env_archcpu(env); |
55d284af PM |
2703 | uint32_t oldval = env->cp15.c14_timer[timeridx].ctl; |
2704 | ||
194cbc49 | 2705 | trace_arm_gt_ctl_write(timeridx, value); |
d3afacc7 | 2706 | env->cp15.c14_timer[timeridx].ctl = deposit64(oldval, 0, 2, value); |
55d284af PM |
2707 | if ((oldval ^ value) & 1) { |
2708 | /* Enable toggled */ | |
2709 | gt_recalc_timer(cpu, timeridx); | |
d3afacc7 | 2710 | } else if ((oldval ^ value) & 2) { |
9b37a28c FR |
2711 | /* |
2712 | * IMASK toggled: don't need to recalculate, | |
55d284af PM |
2713 | * just set the interrupt line based on ISTATUS |
2714 | */ | |
194cbc49 PM |
2715 | int irqstate = (oldval & 4) && !(value & 2); |
2716 | ||
2717 | trace_arm_gt_imask_toggle(timeridx, irqstate); | |
2718 | qemu_set_irq(cpu->gt_timer_outputs[timeridx], irqstate); | |
55d284af | 2719 | } |
55d284af PM |
2720 | } |
2721 | ||
0e3eca4c EI |
2722 | static void gt_phys_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2723 | { | |
2724 | gt_timer_reset(env, ri, GTIMER_PHYS); | |
2725 | } | |
2726 | ||
2727 | static void gt_phys_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2728 | uint64_t value) | |
2729 | { | |
2730 | gt_cval_write(env, ri, GTIMER_PHYS, value); | |
2731 | } | |
2732 | ||
2733 | static uint64_t gt_phys_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2734 | { | |
2735 | return gt_tval_read(env, ri, GTIMER_PHYS); | |
2736 | } | |
2737 | ||
2738 | static void gt_phys_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2739 | uint64_t value) | |
2740 | { | |
2741 | gt_tval_write(env, ri, GTIMER_PHYS, value); | |
2742 | } | |
2743 | ||
2744 | static void gt_phys_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2745 | uint64_t value) | |
2746 | { | |
2747 | gt_ctl_write(env, ri, GTIMER_PHYS, value); | |
2748 | } | |
2749 | ||
bb5972e4 RH |
2750 | static int gt_phys_redir_timeridx(CPUARMState *env) |
2751 | { | |
2752 | switch (arm_mmu_idx(env)) { | |
2753 | case ARMMMUIdx_E20_0: | |
2754 | case ARMMMUIdx_E20_2: | |
452ef8cb | 2755 | case ARMMMUIdx_E20_2_PAN: |
bb5972e4 RH |
2756 | return GTIMER_HYP; |
2757 | default: | |
2758 | return GTIMER_PHYS; | |
2759 | } | |
2760 | } | |
2761 | ||
2762 | static int gt_virt_redir_timeridx(CPUARMState *env) | |
2763 | { | |
2764 | switch (arm_mmu_idx(env)) { | |
2765 | case ARMMMUIdx_E20_0: | |
2766 | case ARMMMUIdx_E20_2: | |
452ef8cb | 2767 | case ARMMMUIdx_E20_2_PAN: |
bb5972e4 RH |
2768 | return GTIMER_HYPVIRT; |
2769 | default: | |
2770 | return GTIMER_VIRT; | |
2771 | } | |
2772 | } | |
2773 | ||
2774 | static uint64_t gt_phys_redir_cval_read(CPUARMState *env, | |
2775 | const ARMCPRegInfo *ri) | |
2776 | { | |
2777 | int timeridx = gt_phys_redir_timeridx(env); | |
2778 | return env->cp15.c14_timer[timeridx].cval; | |
2779 | } | |
2780 | ||
2781 | static void gt_phys_redir_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2782 | uint64_t value) | |
2783 | { | |
2784 | int timeridx = gt_phys_redir_timeridx(env); | |
2785 | gt_cval_write(env, ri, timeridx, value); | |
2786 | } | |
2787 | ||
2788 | static uint64_t gt_phys_redir_tval_read(CPUARMState *env, | |
2789 | const ARMCPRegInfo *ri) | |
2790 | { | |
2791 | int timeridx = gt_phys_redir_timeridx(env); | |
2792 | return gt_tval_read(env, ri, timeridx); | |
2793 | } | |
2794 | ||
2795 | static void gt_phys_redir_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2796 | uint64_t value) | |
2797 | { | |
2798 | int timeridx = gt_phys_redir_timeridx(env); | |
2799 | gt_tval_write(env, ri, timeridx, value); | |
2800 | } | |
2801 | ||
2802 | static uint64_t gt_phys_redir_ctl_read(CPUARMState *env, | |
2803 | const ARMCPRegInfo *ri) | |
2804 | { | |
2805 | int timeridx = gt_phys_redir_timeridx(env); | |
2806 | return env->cp15.c14_timer[timeridx].ctl; | |
2807 | } | |
2808 | ||
2809 | static void gt_phys_redir_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2810 | uint64_t value) | |
2811 | { | |
2812 | int timeridx = gt_phys_redir_timeridx(env); | |
2813 | gt_ctl_write(env, ri, timeridx, value); | |
2814 | } | |
2815 | ||
0e3eca4c EI |
2816 | static void gt_virt_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2817 | { | |
2818 | gt_timer_reset(env, ri, GTIMER_VIRT); | |
2819 | } | |
2820 | ||
2821 | static void gt_virt_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2822 | uint64_t value) | |
2823 | { | |
2824 | gt_cval_write(env, ri, GTIMER_VIRT, value); | |
2825 | } | |
2826 | ||
2827 | static uint64_t gt_virt_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2828 | { | |
2829 | return gt_tval_read(env, ri, GTIMER_VIRT); | |
2830 | } | |
2831 | ||
2832 | static void gt_virt_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2833 | uint64_t value) | |
2834 | { | |
2835 | gt_tval_write(env, ri, GTIMER_VIRT, value); | |
2836 | } | |
2837 | ||
2838 | static void gt_virt_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2839 | uint64_t value) | |
2840 | { | |
2841 | gt_ctl_write(env, ri, GTIMER_VIRT, value); | |
2842 | } | |
2843 | ||
edac4d8a EI |
2844 | static void gt_cntvoff_write(CPUARMState *env, const ARMCPRegInfo *ri, |
2845 | uint64_t value) | |
2846 | { | |
2fc0cc0e | 2847 | ARMCPU *cpu = env_archcpu(env); |
edac4d8a | 2848 | |
194cbc49 | 2849 | trace_arm_gt_cntvoff_write(value); |
edac4d8a EI |
2850 | raw_write(env, ri, value); |
2851 | gt_recalc_timer(cpu, GTIMER_VIRT); | |
2852 | } | |
2853 | ||
bb5972e4 RH |
2854 | static uint64_t gt_virt_redir_cval_read(CPUARMState *env, |
2855 | const ARMCPRegInfo *ri) | |
2856 | { | |
2857 | int timeridx = gt_virt_redir_timeridx(env); | |
2858 | return env->cp15.c14_timer[timeridx].cval; | |
2859 | } | |
2860 | ||
2861 | static void gt_virt_redir_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2862 | uint64_t value) | |
2863 | { | |
2864 | int timeridx = gt_virt_redir_timeridx(env); | |
2865 | gt_cval_write(env, ri, timeridx, value); | |
2866 | } | |
2867 | ||
2868 | static uint64_t gt_virt_redir_tval_read(CPUARMState *env, | |
2869 | const ARMCPRegInfo *ri) | |
2870 | { | |
2871 | int timeridx = gt_virt_redir_timeridx(env); | |
2872 | return gt_tval_read(env, ri, timeridx); | |
2873 | } | |
2874 | ||
2875 | static void gt_virt_redir_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2876 | uint64_t value) | |
2877 | { | |
2878 | int timeridx = gt_virt_redir_timeridx(env); | |
2879 | gt_tval_write(env, ri, timeridx, value); | |
2880 | } | |
2881 | ||
2882 | static uint64_t gt_virt_redir_ctl_read(CPUARMState *env, | |
2883 | const ARMCPRegInfo *ri) | |
2884 | { | |
2885 | int timeridx = gt_virt_redir_timeridx(env); | |
2886 | return env->cp15.c14_timer[timeridx].ctl; | |
2887 | } | |
2888 | ||
2889 | static void gt_virt_redir_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2890 | uint64_t value) | |
2891 | { | |
2892 | int timeridx = gt_virt_redir_timeridx(env); | |
2893 | gt_ctl_write(env, ri, timeridx, value); | |
2894 | } | |
2895 | ||
b0e66d95 EI |
2896 | static void gt_hyp_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2897 | { | |
2898 | gt_timer_reset(env, ri, GTIMER_HYP); | |
2899 | } | |
2900 | ||
2901 | static void gt_hyp_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2902 | uint64_t value) | |
2903 | { | |
2904 | gt_cval_write(env, ri, GTIMER_HYP, value); | |
2905 | } | |
2906 | ||
2907 | static uint64_t gt_hyp_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2908 | { | |
2909 | return gt_tval_read(env, ri, GTIMER_HYP); | |
2910 | } | |
2911 | ||
2912 | static void gt_hyp_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2913 | uint64_t value) | |
2914 | { | |
2915 | gt_tval_write(env, ri, GTIMER_HYP, value); | |
2916 | } | |
2917 | ||
2918 | static void gt_hyp_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2919 | uint64_t value) | |
2920 | { | |
2921 | gt_ctl_write(env, ri, GTIMER_HYP, value); | |
2922 | } | |
2923 | ||
b4d3978c PM |
2924 | static void gt_sec_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2925 | { | |
2926 | gt_timer_reset(env, ri, GTIMER_SEC); | |
2927 | } | |
2928 | ||
2929 | static void gt_sec_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2930 | uint64_t value) | |
2931 | { | |
2932 | gt_cval_write(env, ri, GTIMER_SEC, value); | |
2933 | } | |
2934 | ||
2935 | static uint64_t gt_sec_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2936 | { | |
2937 | return gt_tval_read(env, ri, GTIMER_SEC); | |
2938 | } | |
2939 | ||
2940 | static void gt_sec_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2941 | uint64_t value) | |
2942 | { | |
2943 | gt_tval_write(env, ri, GTIMER_SEC, value); | |
2944 | } | |
2945 | ||
2946 | static void gt_sec_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2947 | uint64_t value) | |
2948 | { | |
2949 | gt_ctl_write(env, ri, GTIMER_SEC, value); | |
2950 | } | |
2951 | ||
8c94b071 RH |
2952 | static void gt_hv_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2953 | { | |
2954 | gt_timer_reset(env, ri, GTIMER_HYPVIRT); | |
2955 | } | |
2956 | ||
2957 | static void gt_hv_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2958 | uint64_t value) | |
2959 | { | |
2960 | gt_cval_write(env, ri, GTIMER_HYPVIRT, value); | |
2961 | } | |
2962 | ||
2963 | static uint64_t gt_hv_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2964 | { | |
2965 | return gt_tval_read(env, ri, GTIMER_HYPVIRT); | |
2966 | } | |
2967 | ||
2968 | static void gt_hv_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2969 | uint64_t value) | |
2970 | { | |
2971 | gt_tval_write(env, ri, GTIMER_HYPVIRT, value); | |
2972 | } | |
2973 | ||
2974 | static void gt_hv_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2975 | uint64_t value) | |
2976 | { | |
2977 | gt_ctl_write(env, ri, GTIMER_HYPVIRT, value); | |
2978 | } | |
2979 | ||
55d284af PM |
2980 | void arm_gt_ptimer_cb(void *opaque) |
2981 | { | |
2982 | ARMCPU *cpu = opaque; | |
2983 | ||
2984 | gt_recalc_timer(cpu, GTIMER_PHYS); | |
2985 | } | |
2986 | ||
2987 | void arm_gt_vtimer_cb(void *opaque) | |
2988 | { | |
2989 | ARMCPU *cpu = opaque; | |
2990 | ||
2991 | gt_recalc_timer(cpu, GTIMER_VIRT); | |
2992 | } | |
2993 | ||
b0e66d95 EI |
2994 | void arm_gt_htimer_cb(void *opaque) |
2995 | { | |
2996 | ARMCPU *cpu = opaque; | |
2997 | ||
2998 | gt_recalc_timer(cpu, GTIMER_HYP); | |
2999 | } | |
3000 | ||
b4d3978c PM |
3001 | void arm_gt_stimer_cb(void *opaque) |
3002 | { | |
3003 | ARMCPU *cpu = opaque; | |
3004 | ||
3005 | gt_recalc_timer(cpu, GTIMER_SEC); | |
3006 | } | |
3007 | ||
8c94b071 RH |
3008 | void arm_gt_hvtimer_cb(void *opaque) |
3009 | { | |
3010 | ARMCPU *cpu = opaque; | |
3011 | ||
3012 | gt_recalc_timer(cpu, GTIMER_HYPVIRT); | |
3013 | } | |
3014 | ||
96eec6b2 AJ |
3015 | static void arm_gt_cntfrq_reset(CPUARMState *env, const ARMCPRegInfo *opaque) |
3016 | { | |
3017 | ARMCPU *cpu = env_archcpu(env); | |
3018 | ||
3019 | cpu->env.cp15.c14_cntfrq = cpu->gt_cntfrq_hz; | |
3020 | } | |
3021 | ||
55d284af | 3022 | static const ARMCPRegInfo generic_timer_cp_reginfo[] = { |
9b37a28c FR |
3023 | /* |
3024 | * Note that CNTFRQ is purely reads-as-written for the benefit | |
55d284af PM |
3025 | * of software; writing it doesn't actually change the timer frequency. |
3026 | * Our reset value matches the fixed frequency we implement the timer at. | |
3027 | */ | |
3028 | { .name = "CNTFRQ", .cp = 15, .crn = 14, .crm = 0, .opc1 = 0, .opc2 = 0, | |
7a0e58fa | 3029 | .type = ARM_CP_ALIAS, |
a7adc4b7 PM |
3030 | .access = PL1_RW | PL0_R, .accessfn = gt_cntfrq_access, |
3031 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c14_cntfrq), | |
a7adc4b7 PM |
3032 | }, |
3033 | { .name = "CNTFRQ_EL0", .state = ARM_CP_STATE_AA64, | |
3034 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 0, | |
3035 | .access = PL1_RW | PL0_R, .accessfn = gt_cntfrq_access, | |
55d284af | 3036 | .fieldoffset = offsetof(CPUARMState, cp15.c14_cntfrq), |
96eec6b2 | 3037 | .resetfn = arm_gt_cntfrq_reset, |
55d284af PM |
3038 | }, |
3039 | /* overall control: mostly access permissions */ | |
a7adc4b7 PM |
3040 | { .name = "CNTKCTL", .state = ARM_CP_STATE_BOTH, |
3041 | .opc0 = 3, .opc1 = 0, .crn = 14, .crm = 1, .opc2 = 0, | |
55d284af PM |
3042 | .access = PL1_RW, |
3043 | .fieldoffset = offsetof(CPUARMState, cp15.c14_cntkctl), | |
3044 | .resetvalue = 0, | |
3045 | }, | |
3046 | /* per-timer control */ | |
3047 | { .name = "CNTP_CTL", .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 1, | |
9ff9dd3c | 3048 | .secure = ARM_CP_SECSTATE_NS, |
daf1dc5f | 3049 | .type = ARM_CP_IO | ARM_CP_ALIAS, .access = PL0_RW, |
a7adc4b7 PM |
3050 | .accessfn = gt_ptimer_access, |
3051 | .fieldoffset = offsetoflow32(CPUARMState, | |
3052 | cp15.c14_timer[GTIMER_PHYS].ctl), | |
bb5972e4 RH |
3053 | .readfn = gt_phys_redir_ctl_read, .raw_readfn = raw_read, |
3054 | .writefn = gt_phys_redir_ctl_write, .raw_writefn = raw_write, | |
a7adc4b7 | 3055 | }, |
9c513e78 | 3056 | { .name = "CNTP_CTL_S", |
9ff9dd3c PM |
3057 | .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 1, |
3058 | .secure = ARM_CP_SECSTATE_S, | |
daf1dc5f | 3059 | .type = ARM_CP_IO | ARM_CP_ALIAS, .access = PL0_RW, |
9ff9dd3c PM |
3060 | .accessfn = gt_ptimer_access, |
3061 | .fieldoffset = offsetoflow32(CPUARMState, | |
3062 | cp15.c14_timer[GTIMER_SEC].ctl), | |
3063 | .writefn = gt_sec_ctl_write, .raw_writefn = raw_write, | |
3064 | }, | |
a7adc4b7 PM |
3065 | { .name = "CNTP_CTL_EL0", .state = ARM_CP_STATE_AA64, |
3066 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 2, .opc2 = 1, | |
daf1dc5f | 3067 | .type = ARM_CP_IO, .access = PL0_RW, |
a7adc4b7 | 3068 | .accessfn = gt_ptimer_access, |
55d284af PM |
3069 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].ctl), |
3070 | .resetvalue = 0, | |
bb5972e4 RH |
3071 | .readfn = gt_phys_redir_ctl_read, .raw_readfn = raw_read, |
3072 | .writefn = gt_phys_redir_ctl_write, .raw_writefn = raw_write, | |
55d284af PM |
3073 | }, |
3074 | { .name = "CNTV_CTL", .cp = 15, .crn = 14, .crm = 3, .opc1 = 0, .opc2 = 1, | |
daf1dc5f | 3075 | .type = ARM_CP_IO | ARM_CP_ALIAS, .access = PL0_RW, |
a7adc4b7 PM |
3076 | .accessfn = gt_vtimer_access, |
3077 | .fieldoffset = offsetoflow32(CPUARMState, | |
3078 | cp15.c14_timer[GTIMER_VIRT].ctl), | |
bb5972e4 RH |
3079 | .readfn = gt_virt_redir_ctl_read, .raw_readfn = raw_read, |
3080 | .writefn = gt_virt_redir_ctl_write, .raw_writefn = raw_write, | |
a7adc4b7 PM |
3081 | }, |
3082 | { .name = "CNTV_CTL_EL0", .state = ARM_CP_STATE_AA64, | |
3083 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 3, .opc2 = 1, | |
daf1dc5f | 3084 | .type = ARM_CP_IO, .access = PL0_RW, |
a7adc4b7 | 3085 | .accessfn = gt_vtimer_access, |
55d284af PM |
3086 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].ctl), |
3087 | .resetvalue = 0, | |
bb5972e4 RH |
3088 | .readfn = gt_virt_redir_ctl_read, .raw_readfn = raw_read, |
3089 | .writefn = gt_virt_redir_ctl_write, .raw_writefn = raw_write, | |
55d284af PM |
3090 | }, |
3091 | /* TimerValue views: a 32 bit downcounting view of the underlying state */ | |
3092 | { .name = "CNTP_TVAL", .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 0, | |
9ff9dd3c | 3093 | .secure = ARM_CP_SECSTATE_NS, |
daf1dc5f | 3094 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
00108f2d | 3095 | .accessfn = gt_ptimer_access, |
bb5972e4 | 3096 | .readfn = gt_phys_redir_tval_read, .writefn = gt_phys_redir_tval_write, |
55d284af | 3097 | }, |
9c513e78 | 3098 | { .name = "CNTP_TVAL_S", |
9ff9dd3c PM |
3099 | .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 0, |
3100 | .secure = ARM_CP_SECSTATE_S, | |
daf1dc5f | 3101 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
9ff9dd3c PM |
3102 | .accessfn = gt_ptimer_access, |
3103 | .readfn = gt_sec_tval_read, .writefn = gt_sec_tval_write, | |
3104 | }, | |
a7adc4b7 PM |
3105 | { .name = "CNTP_TVAL_EL0", .state = ARM_CP_STATE_AA64, |
3106 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 2, .opc2 = 0, | |
daf1dc5f | 3107 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
0e3eca4c | 3108 | .accessfn = gt_ptimer_access, .resetfn = gt_phys_timer_reset, |
bb5972e4 | 3109 | .readfn = gt_phys_redir_tval_read, .writefn = gt_phys_redir_tval_write, |
a7adc4b7 | 3110 | }, |
55d284af | 3111 | { .name = "CNTV_TVAL", .cp = 15, .crn = 14, .crm = 3, .opc1 = 0, .opc2 = 0, |
daf1dc5f | 3112 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
00108f2d | 3113 | .accessfn = gt_vtimer_access, |
bb5972e4 | 3114 | .readfn = gt_virt_redir_tval_read, .writefn = gt_virt_redir_tval_write, |
55d284af | 3115 | }, |
a7adc4b7 PM |
3116 | { .name = "CNTV_TVAL_EL0", .state = ARM_CP_STATE_AA64, |
3117 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 3, .opc2 = 0, | |
daf1dc5f | 3118 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
0e3eca4c | 3119 | .accessfn = gt_vtimer_access, .resetfn = gt_virt_timer_reset, |
bb5972e4 | 3120 | .readfn = gt_virt_redir_tval_read, .writefn = gt_virt_redir_tval_write, |
a7adc4b7 | 3121 | }, |
55d284af PM |
3122 | /* The counter itself */ |
3123 | { .name = "CNTPCT", .cp = 15, .crm = 14, .opc1 = 0, | |
7a0e58fa | 3124 | .access = PL0_R, .type = ARM_CP_64BIT | ARM_CP_NO_RAW | ARM_CP_IO, |
00108f2d | 3125 | .accessfn = gt_pct_access, |
a7adc4b7 PM |
3126 | .readfn = gt_cnt_read, .resetfn = arm_cp_reset_ignore, |
3127 | }, | |
3128 | { .name = "CNTPCT_EL0", .state = ARM_CP_STATE_AA64, | |
3129 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 1, | |
7a0e58fa | 3130 | .access = PL0_R, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
d57b9ee8 | 3131 | .accessfn = gt_pct_access, .readfn = gt_cnt_read, |
55d284af PM |
3132 | }, |
3133 | { .name = "CNTVCT", .cp = 15, .crm = 14, .opc1 = 1, | |
7a0e58fa | 3134 | .access = PL0_R, .type = ARM_CP_64BIT | ARM_CP_NO_RAW | ARM_CP_IO, |
00108f2d | 3135 | .accessfn = gt_vct_access, |
edac4d8a | 3136 | .readfn = gt_virt_cnt_read, .resetfn = arm_cp_reset_ignore, |
a7adc4b7 PM |
3137 | }, |
3138 | { .name = "CNTVCT_EL0", .state = ARM_CP_STATE_AA64, | |
3139 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 2, | |
7a0e58fa | 3140 | .access = PL0_R, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
d57b9ee8 | 3141 | .accessfn = gt_vct_access, .readfn = gt_virt_cnt_read, |
55d284af PM |
3142 | }, |
3143 | /* Comparison value, indicating when the timer goes off */ | |
3144 | { .name = "CNTP_CVAL", .cp = 15, .crm = 14, .opc1 = 2, | |
9ff9dd3c | 3145 | .secure = ARM_CP_SECSTATE_NS, |
daf1dc5f | 3146 | .access = PL0_RW, |
7a0e58fa | 3147 | .type = ARM_CP_64BIT | ARM_CP_IO | ARM_CP_ALIAS, |
55d284af | 3148 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].cval), |
b061a82b | 3149 | .accessfn = gt_ptimer_access, |
bb5972e4 RH |
3150 | .readfn = gt_phys_redir_cval_read, .raw_readfn = raw_read, |
3151 | .writefn = gt_phys_redir_cval_write, .raw_writefn = raw_write, | |
a7adc4b7 | 3152 | }, |
9c513e78 | 3153 | { .name = "CNTP_CVAL_S", .cp = 15, .crm = 14, .opc1 = 2, |
9ff9dd3c | 3154 | .secure = ARM_CP_SECSTATE_S, |
daf1dc5f | 3155 | .access = PL0_RW, |
9ff9dd3c PM |
3156 | .type = ARM_CP_64BIT | ARM_CP_IO | ARM_CP_ALIAS, |
3157 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_SEC].cval), | |
3158 | .accessfn = gt_ptimer_access, | |
3159 | .writefn = gt_sec_cval_write, .raw_writefn = raw_write, | |
3160 | }, | |
a7adc4b7 PM |
3161 | { .name = "CNTP_CVAL_EL0", .state = ARM_CP_STATE_AA64, |
3162 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 2, .opc2 = 2, | |
daf1dc5f | 3163 | .access = PL0_RW, |
a7adc4b7 PM |
3164 | .type = ARM_CP_IO, |
3165 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].cval), | |
12cde08a | 3166 | .resetvalue = 0, .accessfn = gt_ptimer_access, |
bb5972e4 RH |
3167 | .readfn = gt_phys_redir_cval_read, .raw_readfn = raw_read, |
3168 | .writefn = gt_phys_redir_cval_write, .raw_writefn = raw_write, | |
55d284af PM |
3169 | }, |
3170 | { .name = "CNTV_CVAL", .cp = 15, .crm = 14, .opc1 = 3, | |
daf1dc5f | 3171 | .access = PL0_RW, |
7a0e58fa | 3172 | .type = ARM_CP_64BIT | ARM_CP_IO | ARM_CP_ALIAS, |
55d284af | 3173 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].cval), |
b061a82b | 3174 | .accessfn = gt_vtimer_access, |
bb5972e4 RH |
3175 | .readfn = gt_virt_redir_cval_read, .raw_readfn = raw_read, |
3176 | .writefn = gt_virt_redir_cval_write, .raw_writefn = raw_write, | |
a7adc4b7 PM |
3177 | }, |
3178 | { .name = "CNTV_CVAL_EL0", .state = ARM_CP_STATE_AA64, | |
3179 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 3, .opc2 = 2, | |
daf1dc5f | 3180 | .access = PL0_RW, |
a7adc4b7 PM |
3181 | .type = ARM_CP_IO, |
3182 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].cval), | |
3183 | .resetvalue = 0, .accessfn = gt_vtimer_access, | |
bb5972e4 RH |
3184 | .readfn = gt_virt_redir_cval_read, .raw_readfn = raw_read, |
3185 | .writefn = gt_virt_redir_cval_write, .raw_writefn = raw_write, | |
55d284af | 3186 | }, |
9b37a28c FR |
3187 | /* |
3188 | * Secure timer -- this is actually restricted to only EL3 | |
b4d3978c PM |
3189 | * and configurably Secure-EL1 via the accessfn. |
3190 | */ | |
3191 | { .name = "CNTPS_TVAL_EL1", .state = ARM_CP_STATE_AA64, | |
3192 | .opc0 = 3, .opc1 = 7, .crn = 14, .crm = 2, .opc2 = 0, | |
3193 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL1_RW, | |
3194 | .accessfn = gt_stimer_access, | |
3195 | .readfn = gt_sec_tval_read, | |
3196 | .writefn = gt_sec_tval_write, | |
3197 | .resetfn = gt_sec_timer_reset, | |
3198 | }, | |
3199 | { .name = "CNTPS_CTL_EL1", .state = ARM_CP_STATE_AA64, | |
3200 | .opc0 = 3, .opc1 = 7, .crn = 14, .crm = 2, .opc2 = 1, | |
3201 | .type = ARM_CP_IO, .access = PL1_RW, | |
3202 | .accessfn = gt_stimer_access, | |
3203 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_SEC].ctl), | |
3204 | .resetvalue = 0, | |
3205 | .writefn = gt_sec_ctl_write, .raw_writefn = raw_write, | |
3206 | }, | |
3207 | { .name = "CNTPS_CVAL_EL1", .state = ARM_CP_STATE_AA64, | |
3208 | .opc0 = 3, .opc1 = 7, .crn = 14, .crm = 2, .opc2 = 2, | |
3209 | .type = ARM_CP_IO, .access = PL1_RW, | |
3210 | .accessfn = gt_stimer_access, | |
3211 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_SEC].cval), | |
3212 | .writefn = gt_sec_cval_write, .raw_writefn = raw_write, | |
3213 | }, | |
55d284af PM |
3214 | }; |
3215 | ||
bb5972e4 RH |
3216 | static CPAccessResult e2h_access(CPUARMState *env, const ARMCPRegInfo *ri, |
3217 | bool isread) | |
3218 | { | |
3219 | if (!(arm_hcr_el2_eff(env) & HCR_E2H)) { | |
3220 | return CP_ACCESS_TRAP; | |
3221 | } | |
3222 | return CP_ACCESS_OK; | |
3223 | } | |
3224 | ||
55d284af | 3225 | #else |
26c4a83b | 3226 | |
9b37a28c FR |
3227 | /* |
3228 | * In user-mode most of the generic timer registers are inaccessible | |
26c4a83b | 3229 | * however modern kernels (4.12+) allow access to cntvct_el0 |
55d284af | 3230 | */ |
26c4a83b AB |
3231 | |
3232 | static uint64_t gt_virt_cnt_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3233 | { | |
7def8754 AJ |
3234 | ARMCPU *cpu = env_archcpu(env); |
3235 | ||
9b37a28c FR |
3236 | /* |
3237 | * Currently we have no support for QEMUTimer in linux-user so we | |
26c4a83b AB |
3238 | * can't call gt_get_countervalue(env), instead we directly |
3239 | * call the lower level functions. | |
3240 | */ | |
7def8754 | 3241 | return cpu_get_clock() / gt_cntfrq_period_ns(cpu); |
26c4a83b AB |
3242 | } |
3243 | ||
6cc7a3ae | 3244 | static const ARMCPRegInfo generic_timer_cp_reginfo[] = { |
26c4a83b AB |
3245 | { .name = "CNTFRQ_EL0", .state = ARM_CP_STATE_AA64, |
3246 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 0, | |
3247 | .type = ARM_CP_CONST, .access = PL0_R /* no PL1_RW in linux-user */, | |
3248 | .fieldoffset = offsetof(CPUARMState, cp15.c14_cntfrq), | |
3249 | .resetvalue = NANOSECONDS_PER_SECOND / GTIMER_SCALE, | |
3250 | }, | |
3251 | { .name = "CNTVCT_EL0", .state = ARM_CP_STATE_AA64, | |
3252 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 2, | |
3253 | .access = PL0_R, .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
3254 | .readfn = gt_virt_cnt_read, | |
3255 | }, | |
6cc7a3ae PM |
3256 | }; |
3257 | ||
55d284af PM |
3258 | #endif |
3259 | ||
c4241c7d | 3260 | static void par_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
4a501606 | 3261 | { |
891a2fe7 | 3262 | if (arm_feature(env, ARM_FEATURE_LPAE)) { |
8d5c773e | 3263 | raw_write(env, ri, value); |
891a2fe7 | 3264 | } else if (arm_feature(env, ARM_FEATURE_V7)) { |
8d5c773e | 3265 | raw_write(env, ri, value & 0xfffff6ff); |
4a501606 | 3266 | } else { |
8d5c773e | 3267 | raw_write(env, ri, value & 0xfffff1ff); |
4a501606 | 3268 | } |
4a501606 PM |
3269 | } |
3270 | ||
3271 | #ifndef CONFIG_USER_ONLY | |
3272 | /* get_phys_addr() isn't present for user-mode-only targets */ | |
702a9357 | 3273 | |
3f208fd7 PM |
3274 | static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri, |
3275 | bool isread) | |
92611c00 PM |
3276 | { |
3277 | if (ri->opc2 & 4) { | |
9b37a28c FR |
3278 | /* |
3279 | * The ATS12NSO* operations must trap to EL3 or EL2 if executed in | |
87562e4f PM |
3280 | * Secure EL1 (which can only happen if EL3 is AArch64). |
3281 | * They are simply UNDEF if executed from NS EL1. | |
3282 | * They function normally from EL2 or EL3. | |
92611c00 | 3283 | */ |
87562e4f PM |
3284 | if (arm_current_el(env) == 1) { |
3285 | if (arm_is_secure_below_el3(env)) { | |
926c1b97 | 3286 | if (env->cp15.scr_el3 & SCR_EEL2) { |
ce9a8863 | 3287 | return CP_ACCESS_TRAP_EL2; |
926c1b97 | 3288 | } |
ce9a8863 | 3289 | return CP_ACCESS_TRAP_EL3; |
87562e4f PM |
3290 | } |
3291 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
3292 | } | |
92611c00 PM |
3293 | } |
3294 | return CP_ACCESS_OK; | |
3295 | } | |
3296 | ||
9fb005b0 | 3297 | #ifdef CONFIG_TCG |
060e8a48 | 3298 | static uint64_t do_ats_write(CPUARMState *env, uint64_t value, |
7aee3cb9 RH |
3299 | MMUAccessType access_type, ARMMMUIdx mmu_idx, |
3300 | bool is_secure) | |
4a501606 | 3301 | { |
b7cc4e82 | 3302 | bool ret; |
01c097f7 | 3303 | uint64_t par64; |
1313e2d7 | 3304 | bool format64 = false; |
e14b5a23 | 3305 | ARMMMUFaultInfo fi = {}; |
de05a709 | 3306 | GetPhysAddrResult res = {}; |
4a501606 | 3307 | |
7aee3cb9 RH |
3308 | ret = get_phys_addr_with_secure(env, value, access_type, mmu_idx, |
3309 | is_secure, &res, &fi); | |
1313e2d7 | 3310 | |
9f225e60 PM |
3311 | /* |
3312 | * ATS operations only do S1 or S1+S2 translations, so we never | |
3313 | * have to deal with the ARMCacheAttrs format for S2 only. | |
3314 | */ | |
de05a709 | 3315 | assert(!res.cacheattrs.is_s2_format); |
9f225e60 | 3316 | |
0710b2fa PM |
3317 | if (ret) { |
3318 | /* | |
3319 | * Some kinds of translation fault must cause exceptions rather | |
3320 | * than being reported in the PAR. | |
3321 | */ | |
3322 | int current_el = arm_current_el(env); | |
3323 | int target_el; | |
3324 | uint32_t syn, fsr, fsc; | |
3325 | bool take_exc = false; | |
3326 | ||
b1a10c86 | 3327 | if (fi.s1ptw && current_el == 1 |
fee7aa46 | 3328 | && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { |
0710b2fa PM |
3329 | /* |
3330 | * Synchronous stage 2 fault on an access made as part of the | |
3331 | * translation table walk for AT S1E0* or AT S1E1* insn | |
3332 | * executed from NS EL1. If this is a synchronous external abort | |
3333 | * and SCR_EL3.EA == 1, then we take a synchronous external abort | |
3334 | * to EL3. Otherwise the fault is taken as an exception to EL2, | |
3335 | * and HPFAR_EL2 holds the faulting IPA. | |
3336 | */ | |
3337 | if (fi.type == ARMFault_SyncExternalOnWalk && | |
3338 | (env->cp15.scr_el3 & SCR_EA)) { | |
3339 | target_el = 3; | |
3340 | } else { | |
3341 | env->cp15.hpfar_el2 = extract64(fi.s2addr, 12, 47) << 4; | |
9861248f RDC |
3342 | if (arm_is_secure_below_el3(env) && fi.s1ns) { |
3343 | env->cp15.hpfar_el2 |= HPFAR_NS; | |
3344 | } | |
0710b2fa PM |
3345 | target_el = 2; |
3346 | } | |
3347 | take_exc = true; | |
3348 | } else if (fi.type == ARMFault_SyncExternalOnWalk) { | |
3349 | /* | |
3350 | * Synchronous external aborts during a translation table walk | |
3351 | * are taken as Data Abort exceptions. | |
3352 | */ | |
3353 | if (fi.stage2) { | |
3354 | if (current_el == 3) { | |
3355 | target_el = 3; | |
3356 | } else { | |
3357 | target_el = 2; | |
3358 | } | |
3359 | } else { | |
3360 | target_el = exception_target_el(env); | |
3361 | } | |
3362 | take_exc = true; | |
3363 | } | |
3364 | ||
3365 | if (take_exc) { | |
3366 | /* Construct FSR and FSC using same logic as arm_deliver_fault() */ | |
3367 | if (target_el == 2 || arm_el_is_aa64(env, target_el) || | |
3368 | arm_s1_regime_using_lpae_format(env, mmu_idx)) { | |
3369 | fsr = arm_fi_to_lfsc(&fi); | |
3370 | fsc = extract32(fsr, 0, 6); | |
3371 | } else { | |
3372 | fsr = arm_fi_to_sfsc(&fi); | |
3373 | fsc = 0x3f; | |
3374 | } | |
3375 | /* | |
3376 | * Report exception with ESR indicating a fault due to a | |
3377 | * translation table walk for a cache maintenance instruction. | |
3378 | */ | |
e24fd076 | 3379 | syn = syn_data_abort_no_iss(current_el == target_el, 0, |
0710b2fa PM |
3380 | fi.ea, 1, fi.s1ptw, 1, fsc); |
3381 | env->exception.vaddress = value; | |
3382 | env->exception.fsr = fsr; | |
3383 | raise_exception(env, EXCP_DATA_ABORT, syn, target_el); | |
3384 | } | |
3385 | } | |
3386 | ||
1313e2d7 EI |
3387 | if (is_a64(env)) { |
3388 | format64 = true; | |
3389 | } else if (arm_feature(env, ARM_FEATURE_LPAE)) { | |
3390 | /* | |
3391 | * ATS1Cxx: | |
3392 | * * TTBCR.EAE determines whether the result is returned using the | |
3393 | * 32-bit or the 64-bit PAR format | |
3394 | * * Instructions executed in Hyp mode always use the 64bit format | |
3395 | * | |
3396 | * ATS1S2NSOxx uses the 64bit format if any of the following is true: | |
3397 | * * The Non-secure TTBCR.EAE bit is set to 1 | |
3398 | * * The implementation includes EL2, and the value of HCR.VM is 1 | |
3399 | * | |
9d1bab33 PM |
3400 | * (Note that HCR.DC makes HCR.VM behave as if it is 1.) |
3401 | * | |
23463e0e | 3402 | * ATS1Hx always uses the 64bit format. |
1313e2d7 EI |
3403 | */ |
3404 | format64 = arm_s1_regime_using_lpae_format(env, mmu_idx); | |
3405 | ||
3406 | if (arm_feature(env, ARM_FEATURE_EL2)) { | |
452ef8cb RH |
3407 | if (mmu_idx == ARMMMUIdx_E10_0 || |
3408 | mmu_idx == ARMMMUIdx_E10_1 || | |
3409 | mmu_idx == ARMMMUIdx_E10_1_PAN) { | |
9d1bab33 | 3410 | format64 |= env->cp15.hcr_el2 & (HCR_VM | HCR_DC); |
1313e2d7 EI |
3411 | } else { |
3412 | format64 |= arm_current_el(env) == 2; | |
3413 | } | |
3414 | } | |
3415 | } | |
3416 | ||
3417 | if (format64) { | |
5efe9ed4 | 3418 | /* Create a 64-bit PAR */ |
01c097f7 | 3419 | par64 = (1 << 11); /* LPAE bit always set */ |
b7cc4e82 | 3420 | if (!ret) { |
7fa7ea8f RH |
3421 | par64 |= res.f.phys_addr & ~0xfffULL; |
3422 | if (!res.f.attrs.secure) { | |
8bf5b6a9 PM |
3423 | par64 |= (1 << 9); /* NS */ |
3424 | } | |
de05a709 RH |
3425 | par64 |= (uint64_t)res.cacheattrs.attrs << 56; /* ATTR */ |
3426 | par64 |= res.cacheattrs.shareability << 7; /* SH */ | |
4a501606 | 3427 | } else { |
5efe9ed4 PM |
3428 | uint32_t fsr = arm_fi_to_lfsc(&fi); |
3429 | ||
702a9357 | 3430 | par64 |= 1; /* F */ |
b7cc4e82 | 3431 | par64 |= (fsr & 0x3f) << 1; /* FS */ |
0f7b791b PM |
3432 | if (fi.stage2) { |
3433 | par64 |= (1 << 9); /* S */ | |
3434 | } | |
3435 | if (fi.s1ptw) { | |
3436 | par64 |= (1 << 8); /* PTW */ | |
3437 | } | |
4a501606 PM |
3438 | } |
3439 | } else { | |
9b37a28c FR |
3440 | /* |
3441 | * fsr is a DFSR/IFSR value for the short descriptor | |
702a9357 PM |
3442 | * translation table format (with WnR always clear). |
3443 | * Convert it to a 32-bit PAR. | |
3444 | */ | |
b7cc4e82 | 3445 | if (!ret) { |
702a9357 | 3446 | /* We do not set any attribute bits in the PAR */ |
7fa7ea8f | 3447 | if (res.f.lg_page_size == 24 |
702a9357 | 3448 | && arm_feature(env, ARM_FEATURE_V7)) { |
7fa7ea8f | 3449 | par64 = (res.f.phys_addr & 0xff000000) | (1 << 1); |
702a9357 | 3450 | } else { |
7fa7ea8f | 3451 | par64 = res.f.phys_addr & 0xfffff000; |
702a9357 | 3452 | } |
7fa7ea8f | 3453 | if (!res.f.attrs.secure) { |
8bf5b6a9 PM |
3454 | par64 |= (1 << 9); /* NS */ |
3455 | } | |
702a9357 | 3456 | } else { |
5efe9ed4 PM |
3457 | uint32_t fsr = arm_fi_to_sfsc(&fi); |
3458 | ||
b7cc4e82 PC |
3459 | par64 = ((fsr & (1 << 10)) >> 5) | ((fsr & (1 << 12)) >> 6) | |
3460 | ((fsr & 0xf) << 1) | 1; | |
702a9357 | 3461 | } |
4a501606 | 3462 | } |
060e8a48 PM |
3463 | return par64; |
3464 | } | |
9fb005b0 | 3465 | #endif /* CONFIG_TCG */ |
060e8a48 PM |
3466 | |
3467 | static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) | |
3468 | { | |
9fb005b0 | 3469 | #ifdef CONFIG_TCG |
03ae85f8 | 3470 | MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD; |
060e8a48 | 3471 | uint64_t par64; |
d3649702 PM |
3472 | ARMMMUIdx mmu_idx; |
3473 | int el = arm_current_el(env); | |
3474 | bool secure = arm_is_secure_below_el3(env); | |
060e8a48 | 3475 | |
d3649702 PM |
3476 | switch (ri->opc2 & 6) { |
3477 | case 0: | |
04b07d29 | 3478 | /* stage 1 current state PL1: ATS1CPR, ATS1CPW, ATS1CPRP, ATS1CPWP */ |
d3649702 PM |
3479 | switch (el) { |
3480 | case 3: | |
d902ae75 | 3481 | mmu_idx = ARMMMUIdx_E3; |
7aee3cb9 | 3482 | secure = true; |
d3649702 PM |
3483 | break; |
3484 | case 2: | |
b6ad6062 | 3485 | g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */ |
04b07d29 | 3486 | /* fall through */ |
d3649702 | 3487 | case 1: |
04b07d29 | 3488 | if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) { |
d902ae75 | 3489 | mmu_idx = ARMMMUIdx_Stage1_E1_PAN; |
04b07d29 | 3490 | } else { |
d902ae75 | 3491 | mmu_idx = ARMMMUIdx_Stage1_E1; |
04b07d29 | 3492 | } |
d3649702 PM |
3493 | break; |
3494 | default: | |
3495 | g_assert_not_reached(); | |
3496 | } | |
3497 | break; | |
3498 | case 2: | |
3499 | /* stage 1 current state PL0: ATS1CUR, ATS1CUW */ | |
3500 | switch (el) { | |
3501 | case 3: | |
d902ae75 | 3502 | mmu_idx = ARMMMUIdx_E10_0; |
7aee3cb9 | 3503 | secure = true; |
d3649702 PM |
3504 | break; |
3505 | case 2: | |
b1a10c86 | 3506 | g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */ |
2859d7b5 | 3507 | mmu_idx = ARMMMUIdx_Stage1_E0; |
d3649702 PM |
3508 | break; |
3509 | case 1: | |
d902ae75 | 3510 | mmu_idx = ARMMMUIdx_Stage1_E0; |
d3649702 PM |
3511 | break; |
3512 | default: | |
3513 | g_assert_not_reached(); | |
3514 | } | |
3515 | break; | |
3516 | case 4: | |
3517 | /* stage 1+2 NonSecure PL1: ATS12NSOPR, ATS12NSOPW */ | |
01b98b68 | 3518 | mmu_idx = ARMMMUIdx_E10_1; |
7aee3cb9 | 3519 | secure = false; |
d3649702 PM |
3520 | break; |
3521 | case 6: | |
3522 | /* stage 1+2 NonSecure PL0: ATS12NSOUR, ATS12NSOUW */ | |
01b98b68 | 3523 | mmu_idx = ARMMMUIdx_E10_0; |
7aee3cb9 | 3524 | secure = false; |
d3649702 PM |
3525 | break; |
3526 | default: | |
3527 | g_assert_not_reached(); | |
3528 | } | |
3529 | ||
7aee3cb9 | 3530 | par64 = do_ats_write(env, value, access_type, mmu_idx, secure); |
01c097f7 FA |
3531 | |
3532 | A32_BANKED_CURRENT_REG_SET(env, par, par64); | |
9fb005b0 PMD |
3533 | #else |
3534 | /* Handled by hardware accelerator. */ | |
3535 | g_assert_not_reached(); | |
3536 | #endif /* CONFIG_TCG */ | |
4a501606 | 3537 | } |
060e8a48 | 3538 | |
14db7fe0 PM |
3539 | static void ats1h_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3540 | uint64_t value) | |
3541 | { | |
9fb005b0 | 3542 | #ifdef CONFIG_TCG |
03ae85f8 | 3543 | MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD; |
14db7fe0 PM |
3544 | uint64_t par64; |
3545 | ||
7aee3cb9 RH |
3546 | /* There is no SecureEL2 for AArch32. */ |
3547 | par64 = do_ats_write(env, value, access_type, ARMMMUIdx_E2, false); | |
14db7fe0 PM |
3548 | |
3549 | A32_BANKED_CURRENT_REG_SET(env, par, par64); | |
9fb005b0 PMD |
3550 | #else |
3551 | /* Handled by hardware accelerator. */ | |
3552 | g_assert_not_reached(); | |
3553 | #endif /* CONFIG_TCG */ | |
14db7fe0 PM |
3554 | } |
3555 | ||
3f208fd7 PM |
3556 | static CPAccessResult at_s1e2_access(CPUARMState *env, const ARMCPRegInfo *ri, |
3557 | bool isread) | |
2a47df95 | 3558 | { |
926c1b97 RDC |
3559 | if (arm_current_el(env) == 3 && |
3560 | !(env->cp15.scr_el3 & (SCR_NS | SCR_EEL2))) { | |
2a47df95 PM |
3561 | return CP_ACCESS_TRAP; |
3562 | } | |
3563 | return CP_ACCESS_OK; | |
3564 | } | |
3565 | ||
060e8a48 PM |
3566 | static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri, |
3567 | uint64_t value) | |
3568 | { | |
9fb005b0 | 3569 | #ifdef CONFIG_TCG |
03ae85f8 | 3570 | MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD; |
d3649702 PM |
3571 | ARMMMUIdx mmu_idx; |
3572 | int secure = arm_is_secure_below_el3(env); | |
638d5dbd AK |
3573 | uint64_t hcr_el2 = arm_hcr_el2_eff(env); |
3574 | bool regime_e20 = (hcr_el2 & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE); | |
d3649702 PM |
3575 | |
3576 | switch (ri->opc2 & 6) { | |
3577 | case 0: | |
3578 | switch (ri->opc1) { | |
04b07d29 RH |
3579 | case 0: /* AT S1E1R, AT S1E1W, AT S1E1RP, AT S1E1WP */ |
3580 | if (ri->crm == 9 && (env->pstate & PSTATE_PAN)) { | |
638d5dbd AK |
3581 | mmu_idx = regime_e20 ? |
3582 | ARMMMUIdx_E20_2_PAN : ARMMMUIdx_Stage1_E1_PAN; | |
04b07d29 | 3583 | } else { |
638d5dbd | 3584 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_2 : ARMMMUIdx_Stage1_E1; |
04b07d29 | 3585 | } |
d3649702 PM |
3586 | break; |
3587 | case 4: /* AT S1E2R, AT S1E2W */ | |
638d5dbd | 3588 | mmu_idx = hcr_el2 & HCR_E2H ? ARMMMUIdx_E20_2 : ARMMMUIdx_E2; |
d3649702 PM |
3589 | break; |
3590 | case 6: /* AT S1E3R, AT S1E3W */ | |
d902ae75 | 3591 | mmu_idx = ARMMMUIdx_E3; |
7aee3cb9 | 3592 | secure = true; |
d3649702 PM |
3593 | break; |
3594 | default: | |
3595 | g_assert_not_reached(); | |
3596 | } | |
3597 | break; | |
3598 | case 2: /* AT S1E0R, AT S1E0W */ | |
638d5dbd | 3599 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_0 : ARMMMUIdx_Stage1_E0; |
d3649702 PM |
3600 | break; |
3601 | case 4: /* AT S12E1R, AT S12E1W */ | |
638d5dbd | 3602 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_2 : ARMMMUIdx_E10_1; |
d3649702 PM |
3603 | break; |
3604 | case 6: /* AT S12E0R, AT S12E0W */ | |
638d5dbd | 3605 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_0 : ARMMMUIdx_E10_0; |
d3649702 PM |
3606 | break; |
3607 | default: | |
3608 | g_assert_not_reached(); | |
3609 | } | |
060e8a48 | 3610 | |
7aee3cb9 RH |
3611 | env->cp15.par_el[1] = do_ats_write(env, value, access_type, |
3612 | mmu_idx, secure); | |
9fb005b0 PMD |
3613 | #else |
3614 | /* Handled by hardware accelerator. */ | |
3615 | g_assert_not_reached(); | |
3616 | #endif /* CONFIG_TCG */ | |
060e8a48 | 3617 | } |
4a501606 PM |
3618 | #endif |
3619 | ||
3620 | static const ARMCPRegInfo vapa_cp_reginfo[] = { | |
3621 | { .name = "PAR", .cp = 15, .crn = 7, .crm = 4, .opc1 = 0, .opc2 = 0, | |
3622 | .access = PL1_RW, .resetvalue = 0, | |
01c097f7 FA |
3623 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.par_s), |
3624 | offsetoflow32(CPUARMState, cp15.par_ns) }, | |
4a501606 PM |
3625 | .writefn = par_write }, |
3626 | #ifndef CONFIG_USER_ONLY | |
87562e4f | 3627 | /* This underdecoding is safe because the reginfo is NO_RAW. */ |
4a501606 | 3628 | { .name = "ATS", .cp = 15, .crn = 7, .crm = 8, .opc1 = 0, .opc2 = CP_ANY, |
92611c00 | 3629 | .access = PL1_W, .accessfn = ats_access, |
0710b2fa | 3630 | .writefn = ats_write, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC }, |
4a501606 | 3631 | #endif |
4a501606 PM |
3632 | }; |
3633 | ||
18032bec PM |
3634 | /* Return basic MPU access permission bits. */ |
3635 | static uint32_t simple_mpu_ap_bits(uint32_t val) | |
3636 | { | |
3637 | uint32_t ret; | |
3638 | uint32_t mask; | |
3639 | int i; | |
3640 | ret = 0; | |
3641 | mask = 3; | |
3642 | for (i = 0; i < 16; i += 2) { | |
3643 | ret |= (val >> i) & mask; | |
3644 | mask <<= 2; | |
3645 | } | |
3646 | return ret; | |
3647 | } | |
3648 | ||
3649 | /* Pad basic MPU access permission bits to extended format. */ | |
3650 | static uint32_t extended_mpu_ap_bits(uint32_t val) | |
3651 | { | |
3652 | uint32_t ret; | |
3653 | uint32_t mask; | |
3654 | int i; | |
3655 | ret = 0; | |
3656 | mask = 3; | |
3657 | for (i = 0; i < 16; i += 2) { | |
3658 | ret |= (val & mask) << i; | |
3659 | mask <<= 2; | |
3660 | } | |
3661 | return ret; | |
3662 | } | |
3663 | ||
c4241c7d PM |
3664 | static void pmsav5_data_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3665 | uint64_t value) | |
18032bec | 3666 | { |
7e09797c | 3667 | env->cp15.pmsav5_data_ap = extended_mpu_ap_bits(value); |
18032bec PM |
3668 | } |
3669 | ||
c4241c7d | 3670 | static uint64_t pmsav5_data_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) |
18032bec | 3671 | { |
7e09797c | 3672 | return simple_mpu_ap_bits(env->cp15.pmsav5_data_ap); |
18032bec PM |
3673 | } |
3674 | ||
c4241c7d PM |
3675 | static void pmsav5_insn_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3676 | uint64_t value) | |
18032bec | 3677 | { |
7e09797c | 3678 | env->cp15.pmsav5_insn_ap = extended_mpu_ap_bits(value); |
18032bec PM |
3679 | } |
3680 | ||
c4241c7d | 3681 | static uint64_t pmsav5_insn_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) |
18032bec | 3682 | { |
7e09797c | 3683 | return simple_mpu_ap_bits(env->cp15.pmsav5_insn_ap); |
18032bec PM |
3684 | } |
3685 | ||
6cb0b013 PC |
3686 | static uint64_t pmsav7_read(CPUARMState *env, const ARMCPRegInfo *ri) |
3687 | { | |
3688 | uint32_t *u32p = *(uint32_t **)raw_ptr(env, ri); | |
3689 | ||
3690 | if (!u32p) { | |
3691 | return 0; | |
3692 | } | |
3693 | ||
1bc04a88 | 3694 | u32p += env->pmsav7.rnr[M_REG_NS]; |
6cb0b013 PC |
3695 | return *u32p; |
3696 | } | |
3697 | ||
3698 | static void pmsav7_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3699 | uint64_t value) | |
3700 | { | |
2fc0cc0e | 3701 | ARMCPU *cpu = env_archcpu(env); |
6cb0b013 PC |
3702 | uint32_t *u32p = *(uint32_t **)raw_ptr(env, ri); |
3703 | ||
3704 | if (!u32p) { | |
3705 | return; | |
3706 | } | |
3707 | ||
1bc04a88 | 3708 | u32p += env->pmsav7.rnr[M_REG_NS]; |
d10eb08f | 3709 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ |
6cb0b013 PC |
3710 | *u32p = value; |
3711 | } | |
3712 | ||
6cb0b013 PC |
3713 | static void pmsav7_rgnr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3714 | uint64_t value) | |
3715 | { | |
2fc0cc0e | 3716 | ARMCPU *cpu = env_archcpu(env); |
6cb0b013 PC |
3717 | uint32_t nrgs = cpu->pmsav7_dregion; |
3718 | ||
3719 | if (value >= nrgs) { | |
3720 | qemu_log_mask(LOG_GUEST_ERROR, | |
3721 | "PMSAv7 RGNR write >= # supported regions, %" PRIu32 | |
3722 | " > %" PRIu32 "\n", (uint32_t)value, nrgs); | |
3723 | return; | |
3724 | } | |
3725 | ||
3726 | raw_write(env, ri, value); | |
3727 | } | |
3728 | ||
761c4642 TR |
3729 | static void prbar_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3730 | uint64_t value) | |
3731 | { | |
3732 | ARMCPU *cpu = env_archcpu(env); | |
3733 | ||
3734 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3735 | env->pmsav8.rbar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]] = value; | |
3736 | } | |
3737 | ||
3738 | static uint64_t prbar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3739 | { | |
3740 | return env->pmsav8.rbar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]]; | |
3741 | } | |
3742 | ||
3743 | static void prlar_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3744 | uint64_t value) | |
3745 | { | |
3746 | ARMCPU *cpu = env_archcpu(env); | |
3747 | ||
3748 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3749 | env->pmsav8.rlar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]] = value; | |
3750 | } | |
3751 | ||
3752 | static uint64_t prlar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3753 | { | |
3754 | return env->pmsav8.rlar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]]; | |
3755 | } | |
3756 | ||
3757 | static void prselr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3758 | uint64_t value) | |
3759 | { | |
3760 | ARMCPU *cpu = env_archcpu(env); | |
3761 | ||
3762 | /* | |
3763 | * Ignore writes that would select not implemented region. | |
3764 | * This is architecturally UNPREDICTABLE. | |
3765 | */ | |
3766 | if (value >= cpu->pmsav7_dregion) { | |
3767 | return; | |
3768 | } | |
3769 | ||
3770 | env->pmsav7.rnr[M_REG_NS] = value; | |
3771 | } | |
3772 | ||
3773 | static void hprbar_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3774 | uint64_t value) | |
3775 | { | |
3776 | ARMCPU *cpu = env_archcpu(env); | |
3777 | ||
3778 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3779 | env->pmsav8.hprbar[env->pmsav8.hprselr] = value; | |
3780 | } | |
3781 | ||
3782 | static uint64_t hprbar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3783 | { | |
3784 | return env->pmsav8.hprbar[env->pmsav8.hprselr]; | |
3785 | } | |
3786 | ||
3787 | static void hprlar_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3788 | uint64_t value) | |
3789 | { | |
3790 | ARMCPU *cpu = env_archcpu(env); | |
3791 | ||
3792 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3793 | env->pmsav8.hprlar[env->pmsav8.hprselr] = value; | |
3794 | } | |
3795 | ||
3796 | static uint64_t hprlar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3797 | { | |
3798 | return env->pmsav8.hprlar[env->pmsav8.hprselr]; | |
3799 | } | |
3800 | ||
3801 | static void hprenr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3802 | uint64_t value) | |
3803 | { | |
3804 | uint32_t n; | |
3805 | uint32_t bit; | |
3806 | ARMCPU *cpu = env_archcpu(env); | |
3807 | ||
3808 | /* Ignore writes to unimplemented regions */ | |
3809 | int rmax = MIN(cpu->pmsav8r_hdregion, 32); | |
3810 | value &= MAKE_64BIT_MASK(0, rmax); | |
3811 | ||
3812 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3813 | ||
3814 | /* Register alias is only valid for first 32 indexes */ | |
3815 | for (n = 0; n < rmax; ++n) { | |
3816 | bit = extract32(value, n, 1); | |
3817 | env->pmsav8.hprlar[n] = deposit32( | |
3818 | env->pmsav8.hprlar[n], 0, 1, bit); | |
3819 | } | |
3820 | } | |
3821 | ||
3822 | static uint64_t hprenr_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3823 | { | |
3824 | uint32_t n; | |
3825 | uint32_t result = 0x0; | |
3826 | ARMCPU *cpu = env_archcpu(env); | |
3827 | ||
3828 | /* Register alias is only valid for first 32 indexes */ | |
3829 | for (n = 0; n < MIN(cpu->pmsav8r_hdregion, 32); ++n) { | |
3830 | if (env->pmsav8.hprlar[n] & 0x1) { | |
3831 | result |= (0x1 << n); | |
3832 | } | |
3833 | } | |
3834 | return result; | |
3835 | } | |
3836 | ||
3837 | static void hprselr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3838 | uint64_t value) | |
3839 | { | |
3840 | ARMCPU *cpu = env_archcpu(env); | |
3841 | ||
3842 | /* | |
3843 | * Ignore writes that would select not implemented region. | |
3844 | * This is architecturally UNPREDICTABLE. | |
3845 | */ | |
3846 | if (value >= cpu->pmsav8r_hdregion) { | |
3847 | return; | |
3848 | } | |
3849 | ||
3850 | env->pmsav8.hprselr = value; | |
3851 | } | |
3852 | ||
3853 | static void pmsav8r_regn_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3854 | uint64_t value) | |
3855 | { | |
3856 | ARMCPU *cpu = env_archcpu(env); | |
3857 | uint8_t index = (extract32(ri->opc0, 0, 1) << 4) | | |
3858 | (extract32(ri->crm, 0, 3) << 1) | extract32(ri->opc2, 2, 1); | |
3859 | ||
3860 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3861 | ||
3862 | if (ri->opc1 & 4) { | |
3863 | if (index >= cpu->pmsav8r_hdregion) { | |
3864 | return; | |
3865 | } | |
3866 | if (ri->opc2 & 0x1) { | |
3867 | env->pmsav8.hprlar[index] = value; | |
3868 | } else { | |
3869 | env->pmsav8.hprbar[index] = value; | |
3870 | } | |
3871 | } else { | |
3872 | if (index >= cpu->pmsav7_dregion) { | |
3873 | return; | |
3874 | } | |
3875 | if (ri->opc2 & 0x1) { | |
3876 | env->pmsav8.rlar[M_REG_NS][index] = value; | |
3877 | } else { | |
3878 | env->pmsav8.rbar[M_REG_NS][index] = value; | |
3879 | } | |
3880 | } | |
3881 | } | |
3882 | ||
3883 | static uint64_t pmsav8r_regn_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3884 | { | |
3885 | ARMCPU *cpu = env_archcpu(env); | |
3886 | uint8_t index = (extract32(ri->opc0, 0, 1) << 4) | | |
3887 | (extract32(ri->crm, 0, 3) << 1) | extract32(ri->opc2, 2, 1); | |
3888 | ||
3889 | if (ri->opc1 & 4) { | |
3890 | if (index >= cpu->pmsav8r_hdregion) { | |
3891 | return 0x0; | |
3892 | } | |
3893 | if (ri->opc2 & 0x1) { | |
3894 | return env->pmsav8.hprlar[index]; | |
3895 | } else { | |
3896 | return env->pmsav8.hprbar[index]; | |
3897 | } | |
3898 | } else { | |
3899 | if (index >= cpu->pmsav7_dregion) { | |
3900 | return 0x0; | |
3901 | } | |
3902 | if (ri->opc2 & 0x1) { | |
3903 | return env->pmsav8.rlar[M_REG_NS][index]; | |
3904 | } else { | |
3905 | return env->pmsav8.rbar[M_REG_NS][index]; | |
3906 | } | |
3907 | } | |
3908 | } | |
3909 | ||
3910 | static const ARMCPRegInfo pmsav8r_cp_reginfo[] = { | |
3911 | { .name = "PRBAR", | |
3912 | .cp = 15, .opc1 = 0, .crn = 6, .crm = 3, .opc2 = 0, | |
3913 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3914 | .accessfn = access_tvm_trvm, | |
3915 | .readfn = prbar_read, .writefn = prbar_write }, | |
3916 | { .name = "PRLAR", | |
3917 | .cp = 15, .opc1 = 0, .crn = 6, .crm = 3, .opc2 = 1, | |
3918 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3919 | .accessfn = access_tvm_trvm, | |
3920 | .readfn = prlar_read, .writefn = prlar_write }, | |
3921 | { .name = "PRSELR", .resetvalue = 0, | |
3922 | .cp = 15, .opc1 = 0, .crn = 6, .crm = 2, .opc2 = 1, | |
3923 | .access = PL1_RW, .accessfn = access_tvm_trvm, | |
3924 | .writefn = prselr_write, | |
3925 | .fieldoffset = offsetof(CPUARMState, pmsav7.rnr[M_REG_NS]) }, | |
3926 | { .name = "HPRBAR", .resetvalue = 0, | |
3927 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 3, .opc2 = 0, | |
3928 | .access = PL2_RW, .type = ARM_CP_NO_RAW, | |
3929 | .readfn = hprbar_read, .writefn = hprbar_write }, | |
3930 | { .name = "HPRLAR", | |
3931 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 3, .opc2 = 1, | |
3932 | .access = PL2_RW, .type = ARM_CP_NO_RAW, | |
3933 | .readfn = hprlar_read, .writefn = hprlar_write }, | |
3934 | { .name = "HPRSELR", .resetvalue = 0, | |
3935 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 2, .opc2 = 1, | |
3936 | .access = PL2_RW, | |
3937 | .writefn = hprselr_write, | |
3938 | .fieldoffset = offsetof(CPUARMState, pmsav8.hprselr) }, | |
3939 | { .name = "HPRENR", | |
3940 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 1, .opc2 = 1, | |
3941 | .access = PL2_RW, .type = ARM_CP_NO_RAW, | |
3942 | .readfn = hprenr_read, .writefn = hprenr_write }, | |
3943 | }; | |
3944 | ||
6cb0b013 | 3945 | static const ARMCPRegInfo pmsav7_cp_reginfo[] = { |
9b37a28c FR |
3946 | /* |
3947 | * Reset for all these registers is handled in arm_cpu_reset(), | |
69ceea64 PM |
3948 | * because the PMSAv7 is also used by M-profile CPUs, which do |
3949 | * not register cpregs but still need the state to be reset. | |
3950 | */ | |
6cb0b013 PC |
3951 | { .name = "DRBAR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 1, .opc2 = 0, |
3952 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3953 | .fieldoffset = offsetof(CPUARMState, pmsav7.drbar), | |
69ceea64 PM |
3954 | .readfn = pmsav7_read, .writefn = pmsav7_write, |
3955 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3956 | { .name = "DRSR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 1, .opc2 = 2, |
3957 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3958 | .fieldoffset = offsetof(CPUARMState, pmsav7.drsr), | |
69ceea64 PM |
3959 | .readfn = pmsav7_read, .writefn = pmsav7_write, |
3960 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3961 | { .name = "DRACR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 1, .opc2 = 4, |
3962 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3963 | .fieldoffset = offsetof(CPUARMState, pmsav7.dracr), | |
69ceea64 PM |
3964 | .readfn = pmsav7_read, .writefn = pmsav7_write, |
3965 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3966 | { .name = "RGNR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 2, .opc2 = 0, |
3967 | .access = PL1_RW, | |
1bc04a88 | 3968 | .fieldoffset = offsetof(CPUARMState, pmsav7.rnr[M_REG_NS]), |
69ceea64 PM |
3969 | .writefn = pmsav7_rgnr_write, |
3970 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3971 | }; |
3972 | ||
18032bec PM |
3973 | static const ARMCPRegInfo pmsav5_cp_reginfo[] = { |
3974 | { .name = "DATA_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 0, | |
7a0e58fa | 3975 | .access = PL1_RW, .type = ARM_CP_ALIAS, |
7e09797c | 3976 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_data_ap), |
18032bec PM |
3977 | .readfn = pmsav5_data_ap_read, .writefn = pmsav5_data_ap_write, }, |
3978 | { .name = "INSN_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 1, | |
7a0e58fa | 3979 | .access = PL1_RW, .type = ARM_CP_ALIAS, |
7e09797c | 3980 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_insn_ap), |
18032bec PM |
3981 | .readfn = pmsav5_insn_ap_read, .writefn = pmsav5_insn_ap_write, }, |
3982 | { .name = "DATA_EXT_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 2, | |
3983 | .access = PL1_RW, | |
7e09797c PM |
3984 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_data_ap), |
3985 | .resetvalue = 0, }, | |
18032bec PM |
3986 | { .name = "INSN_EXT_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 3, |
3987 | .access = PL1_RW, | |
7e09797c PM |
3988 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_insn_ap), |
3989 | .resetvalue = 0, }, | |
ecce5c3c PM |
3990 | { .name = "DCACHE_CFG", .cp = 15, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 0, |
3991 | .access = PL1_RW, | |
3992 | .fieldoffset = offsetof(CPUARMState, cp15.c2_data), .resetvalue = 0, }, | |
3993 | { .name = "ICACHE_CFG", .cp = 15, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 1, | |
3994 | .access = PL1_RW, | |
3995 | .fieldoffset = offsetof(CPUARMState, cp15.c2_insn), .resetvalue = 0, }, | |
06d76f31 | 3996 | /* Protection region base and size registers */ |
e508a92b PM |
3997 | { .name = "946_PRBS0", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, |
3998 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
3999 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[0]) }, | |
4000 | { .name = "946_PRBS1", .cp = 15, .crn = 6, .crm = 1, .opc1 = 0, | |
4001 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4002 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[1]) }, | |
4003 | { .name = "946_PRBS2", .cp = 15, .crn = 6, .crm = 2, .opc1 = 0, | |
4004 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4005 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[2]) }, | |
4006 | { .name = "946_PRBS3", .cp = 15, .crn = 6, .crm = 3, .opc1 = 0, | |
4007 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4008 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[3]) }, | |
4009 | { .name = "946_PRBS4", .cp = 15, .crn = 6, .crm = 4, .opc1 = 0, | |
4010 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4011 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[4]) }, | |
4012 | { .name = "946_PRBS5", .cp = 15, .crn = 6, .crm = 5, .opc1 = 0, | |
4013 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4014 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[5]) }, | |
4015 | { .name = "946_PRBS6", .cp = 15, .crn = 6, .crm = 6, .opc1 = 0, | |
4016 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4017 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[6]) }, | |
4018 | { .name = "946_PRBS7", .cp = 15, .crn = 6, .crm = 7, .opc1 = 0, | |
4019 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4020 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[7]) }, | |
18032bec PM |
4021 | }; |
4022 | ||
cb4a0a34 PM |
4023 | static void vmsa_ttbcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4024 | uint64_t value) | |
ecce5c3c | 4025 | { |
cb4a0a34 | 4026 | ARMCPU *cpu = env_archcpu(env); |
2ebcebe2 | 4027 | |
e389be16 FA |
4028 | if (!arm_feature(env, ARM_FEATURE_V8)) { |
4029 | if (arm_feature(env, ARM_FEATURE_LPAE) && (value & TTBCR_EAE)) { | |
cb4a0a34 PM |
4030 | /* |
4031 | * Pre ARMv8 bits [21:19], [15:14] and [6:3] are UNK/SBZP when | |
4032 | * using Long-descriptor translation table format | |
4033 | */ | |
e389be16 FA |
4034 | value &= ~((7 << 19) | (3 << 14) | (0xf << 3)); |
4035 | } else if (arm_feature(env, ARM_FEATURE_EL3)) { | |
cb4a0a34 PM |
4036 | /* |
4037 | * In an implementation that includes the Security Extensions | |
e389be16 FA |
4038 | * TTBCR has additional fields PD0 [4] and PD1 [5] for |
4039 | * Short-descriptor translation table format. | |
4040 | */ | |
4041 | value &= TTBCR_PD1 | TTBCR_PD0 | TTBCR_N; | |
4042 | } else { | |
4043 | value &= TTBCR_N; | |
4044 | } | |
e42c4db3 | 4045 | } |
e389be16 | 4046 | |
d4e6df63 | 4047 | if (arm_feature(env, ARM_FEATURE_LPAE)) { |
9b37a28c FR |
4048 | /* |
4049 | * With LPAE the TTBCR could result in a change of ASID | |
d4e6df63 PM |
4050 | * via the TTBCR.A1 bit, so do a TLB flush. |
4051 | */ | |
d10eb08f | 4052 | tlb_flush(CPU(cpu)); |
d4e6df63 | 4053 | } |
cb4a0a34 | 4054 | raw_write(env, ri, value); |
ecce5c3c PM |
4055 | } |
4056 | ||
d06dc933 | 4057 | static void vmsa_tcr_el12_write(CPUARMState *env, const ARMCPRegInfo *ri, |
cb2e37df PM |
4058 | uint64_t value) |
4059 | { | |
2fc0cc0e | 4060 | ARMCPU *cpu = env_archcpu(env); |
00c8cb0a | 4061 | |
cb2e37df | 4062 | /* For AArch64 the A1 bit could result in a change of ASID, so TLB flush. */ |
d10eb08f | 4063 | tlb_flush(CPU(cpu)); |
cb4a0a34 | 4064 | raw_write(env, ri, value); |
cb2e37df PM |
4065 | } |
4066 | ||
327ed10f PM |
4067 | static void vmsa_ttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4068 | uint64_t value) | |
4069 | { | |
93f379b0 RH |
4070 | /* If the ASID changes (with a 64-bit write), we must flush the TLB. */ |
4071 | if (cpreg_field_is_64bit(ri) && | |
4072 | extract64(raw_read(env, ri) ^ value, 48, 16) != 0) { | |
2fc0cc0e | 4073 | ARMCPU *cpu = env_archcpu(env); |
d10eb08f | 4074 | tlb_flush(CPU(cpu)); |
327ed10f PM |
4075 | } |
4076 | raw_write(env, ri, value); | |
4077 | } | |
4078 | ||
ed30da8e RH |
4079 | static void vmsa_tcr_ttbr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4080 | uint64_t value) | |
4081 | { | |
d06dc933 RH |
4082 | /* |
4083 | * If we are running with E2&0 regime, then an ASID is active. | |
4084 | * Flush if that might be changing. Note we're not checking | |
4085 | * TCR_EL2.A1 to know if this is really the TTBRx_EL2 that | |
4086 | * holds the active ASID, only checking the field that might. | |
4087 | */ | |
4088 | if (extract64(raw_read(env, ri) ^ value, 48, 16) && | |
4089 | (arm_hcr_el2_eff(env) & HCR_E2H)) { | |
b6ad6062 RDC |
4090 | uint16_t mask = ARMMMUIdxBit_E20_2 | |
4091 | ARMMMUIdxBit_E20_2_PAN | | |
4092 | ARMMMUIdxBit_E20_0; | |
b6ad6062 | 4093 | tlb_flush_by_mmuidx(env_cpu(env), mask); |
d06dc933 | 4094 | } |
ed30da8e RH |
4095 | raw_write(env, ri, value); |
4096 | } | |
4097 | ||
b698e9cf EI |
4098 | static void vttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4099 | uint64_t value) | |
4100 | { | |
2fc0cc0e | 4101 | ARMCPU *cpu = env_archcpu(env); |
b698e9cf EI |
4102 | CPUState *cs = CPU(cpu); |
4103 | ||
97fa9350 RH |
4104 | /* |
4105 | * A change in VMID to the stage2 page table (Stage2) invalidates | |
575a94af | 4106 | * the stage2 and combined stage 1&2 tlbs (EL10_1 and EL10_0). |
97fa9350 | 4107 | */ |
00b20ee4 | 4108 | if (extract64(raw_read(env, ri) ^ value, 48, 16) != 0) { |
575a94af | 4109 | tlb_flush_by_mmuidx(cs, alle1_tlbmask(env)); |
b698e9cf | 4110 | } |
00b20ee4 | 4111 | raw_write(env, ri, value); |
b698e9cf EI |
4112 | } |
4113 | ||
8e5d75c9 | 4114 | static const ARMCPRegInfo vmsa_pmsa_cp_reginfo[] = { |
18032bec | 4115 | { .name = "DFSR", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 0, |
84929218 | 4116 | .access = PL1_RW, .accessfn = access_tvm_trvm, .type = ARM_CP_ALIAS, |
4a7e2d73 | 4117 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.dfsr_s), |
b061a82b | 4118 | offsetoflow32(CPUARMState, cp15.dfsr_ns) }, }, |
18032bec | 4119 | { .name = "IFSR", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 1, |
84929218 | 4120 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
88ca1c2d FA |
4121 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.ifsr_s), |
4122 | offsetoflow32(CPUARMState, cp15.ifsr_ns) } }, | |
8e5d75c9 | 4123 | { .name = "DFAR", .cp = 15, .opc1 = 0, .crn = 6, .crm = 0, .opc2 = 0, |
84929218 | 4124 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
8e5d75c9 PC |
4125 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.dfar_s), |
4126 | offsetof(CPUARMState, cp15.dfar_ns) } }, | |
4127 | { .name = "FAR_EL1", .state = ARM_CP_STATE_AA64, | |
4128 | .opc0 = 3, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 0, | |
84929218 RH |
4129 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4130 | .fieldoffset = offsetof(CPUARMState, cp15.far_el[1]), | |
8e5d75c9 | 4131 | .resetvalue = 0, }, |
8e5d75c9 PC |
4132 | }; |
4133 | ||
4134 | static const ARMCPRegInfo vmsa_cp_reginfo[] = { | |
6cd8a264 RH |
4135 | { .name = "ESR_EL1", .state = ARM_CP_STATE_AA64, |
4136 | .opc0 = 3, .crn = 5, .crm = 2, .opc1 = 0, .opc2 = 0, | |
84929218 | 4137 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
d81c519c | 4138 | .fieldoffset = offsetof(CPUARMState, cp15.esr_el[1]), .resetvalue = 0, }, |
327ed10f | 4139 | { .name = "TTBR0_EL1", .state = ARM_CP_STATE_BOTH, |
7dd8c9af | 4140 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 0, |
84929218 RH |
4141 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4142 | .writefn = vmsa_ttbr_write, .resetvalue = 0, | |
7dd8c9af FA |
4143 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr0_s), |
4144 | offsetof(CPUARMState, cp15.ttbr0_ns) } }, | |
327ed10f | 4145 | { .name = "TTBR1_EL1", .state = ARM_CP_STATE_BOTH, |
7dd8c9af | 4146 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 1, |
84929218 RH |
4147 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4148 | .writefn = vmsa_ttbr_write, .resetvalue = 0, | |
7dd8c9af FA |
4149 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr1_s), |
4150 | offsetof(CPUARMState, cp15.ttbr1_ns) } }, | |
cb2e37df PM |
4151 | { .name = "TCR_EL1", .state = ARM_CP_STATE_AA64, |
4152 | .opc0 = 3, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 2, | |
84929218 RH |
4153 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4154 | .writefn = vmsa_tcr_el12_write, | |
cb4a0a34 PM |
4155 | .raw_writefn = raw_write, |
4156 | .resetvalue = 0, | |
11f136ee | 4157 | .fieldoffset = offsetof(CPUARMState, cp15.tcr_el[1]) }, |
cb2e37df | 4158 | { .name = "TTBCR", .cp = 15, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 2, |
84929218 RH |
4159 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4160 | .type = ARM_CP_ALIAS, .writefn = vmsa_ttbcr_write, | |
cb4a0a34 PM |
4161 | .raw_writefn = raw_write, |
4162 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tcr_el[3]), | |
4163 | offsetoflow32(CPUARMState, cp15.tcr_el[1])} }, | |
18032bec PM |
4164 | }; |
4165 | ||
9b37a28c FR |
4166 | /* |
4167 | * Note that unlike TTBCR, writing to TTBCR2 does not require flushing | |
ab638a32 RH |
4168 | * qemu tlbs nor adjusting cached masks. |
4169 | */ | |
4170 | static const ARMCPRegInfo ttbcr2_reginfo = { | |
4171 | .name = "TTBCR2", .cp = 15, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 3, | |
84929218 RH |
4172 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4173 | .type = ARM_CP_ALIAS, | |
d102058e | 4174 | .bank_fieldoffsets = { |
cb4a0a34 PM |
4175 | offsetofhigh32(CPUARMState, cp15.tcr_el[3]), |
4176 | offsetofhigh32(CPUARMState, cp15.tcr_el[1]), | |
d102058e | 4177 | }, |
ab638a32 RH |
4178 | }; |
4179 | ||
c4241c7d PM |
4180 | static void omap_ticonfig_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4181 | uint64_t value) | |
1047b9d7 PM |
4182 | { |
4183 | env->cp15.c15_ticonfig = value & 0xe7; | |
4184 | /* The OS_TYPE bit in this register changes the reported CPUID! */ | |
4185 | env->cp15.c0_cpuid = (value & (1 << 5)) ? | |
4186 | ARM_CPUID_TI915T : ARM_CPUID_TI925T; | |
1047b9d7 PM |
4187 | } |
4188 | ||
c4241c7d PM |
4189 | static void omap_threadid_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4190 | uint64_t value) | |
1047b9d7 PM |
4191 | { |
4192 | env->cp15.c15_threadid = value & 0xffff; | |
1047b9d7 PM |
4193 | } |
4194 | ||
c4241c7d PM |
4195 | static void omap_wfi_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4196 | uint64_t value) | |
1047b9d7 PM |
4197 | { |
4198 | /* Wait-for-interrupt (deprecated) */ | |
2fc0cc0e | 4199 | cpu_interrupt(env_cpu(env), CPU_INTERRUPT_HALT); |
1047b9d7 PM |
4200 | } |
4201 | ||
c4241c7d PM |
4202 | static void omap_cachemaint_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4203 | uint64_t value) | |
c4804214 | 4204 | { |
9b37a28c FR |
4205 | /* |
4206 | * On OMAP there are registers indicating the max/min index of dcache lines | |
c4804214 PM |
4207 | * containing a dirty line; cache flush operations have to reset these. |
4208 | */ | |
4209 | env->cp15.c15_i_max = 0x000; | |
4210 | env->cp15.c15_i_min = 0xff0; | |
c4804214 PM |
4211 | } |
4212 | ||
18032bec PM |
4213 | static const ARMCPRegInfo omap_cp_reginfo[] = { |
4214 | { .name = "DFSR", .cp = 15, .crn = 5, .crm = CP_ANY, | |
4215 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, .type = ARM_CP_OVERRIDE, | |
d81c519c | 4216 | .fieldoffset = offsetoflow32(CPUARMState, cp15.esr_el[1]), |
6cd8a264 | 4217 | .resetvalue = 0, }, |
1047b9d7 PM |
4218 | { .name = "", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0, |
4219 | .access = PL1_RW, .type = ARM_CP_NOP }, | |
4220 | { .name = "TICONFIG", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0, | |
4221 | .access = PL1_RW, | |
4222 | .fieldoffset = offsetof(CPUARMState, cp15.c15_ticonfig), .resetvalue = 0, | |
4223 | .writefn = omap_ticonfig_write }, | |
4224 | { .name = "IMAX", .cp = 15, .crn = 15, .crm = 2, .opc1 = 0, .opc2 = 0, | |
4225 | .access = PL1_RW, | |
4226 | .fieldoffset = offsetof(CPUARMState, cp15.c15_i_max), .resetvalue = 0, }, | |
4227 | { .name = "IMIN", .cp = 15, .crn = 15, .crm = 3, .opc1 = 0, .opc2 = 0, | |
4228 | .access = PL1_RW, .resetvalue = 0xff0, | |
4229 | .fieldoffset = offsetof(CPUARMState, cp15.c15_i_min) }, | |
4230 | { .name = "THREADID", .cp = 15, .crn = 15, .crm = 4, .opc1 = 0, .opc2 = 0, | |
4231 | .access = PL1_RW, | |
4232 | .fieldoffset = offsetof(CPUARMState, cp15.c15_threadid), .resetvalue = 0, | |
4233 | .writefn = omap_threadid_write }, | |
4234 | { .name = "TI925T_STATUS", .cp = 15, .crn = 15, | |
4235 | .crm = 8, .opc1 = 0, .opc2 = 0, .access = PL1_RW, | |
7a0e58fa | 4236 | .type = ARM_CP_NO_RAW, |
1047b9d7 | 4237 | .readfn = arm_cp_read_zero, .writefn = omap_wfi_write, }, |
9b37a28c FR |
4238 | /* |
4239 | * TODO: Peripheral port remap register: | |
1047b9d7 PM |
4240 | * On OMAP2 mcr p15, 0, rn, c15, c2, 4 sets up the interrupt controller |
4241 | * base address at $rn & ~0xfff and map size of 0x200 << ($rn & 0xfff), | |
4242 | * when MMU is off. | |
4243 | */ | |
c4804214 | 4244 | { .name = "OMAP_CACHEMAINT", .cp = 15, .crn = 7, .crm = CP_ANY, |
d4e6df63 | 4245 | .opc1 = 0, .opc2 = CP_ANY, .access = PL1_W, |
7a0e58fa | 4246 | .type = ARM_CP_OVERRIDE | ARM_CP_NO_RAW, |
c4804214 | 4247 | .writefn = omap_cachemaint_write }, |
34f90529 PM |
4248 | { .name = "C9", .cp = 15, .crn = 9, |
4249 | .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, | |
4250 | .type = ARM_CP_CONST | ARM_CP_OVERRIDE, .resetvalue = 0 }, | |
1047b9d7 PM |
4251 | }; |
4252 | ||
c4241c7d PM |
4253 | static void xscale_cpar_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4254 | uint64_t value) | |
1047b9d7 | 4255 | { |
c0f4af17 | 4256 | env->cp15.c15_cpar = value & 0x3fff; |
1047b9d7 PM |
4257 | } |
4258 | ||
4259 | static const ARMCPRegInfo xscale_cp_reginfo[] = { | |
4260 | { .name = "XSCALE_CPAR", | |
4261 | .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0, .access = PL1_RW, | |
4262 | .fieldoffset = offsetof(CPUARMState, cp15.c15_cpar), .resetvalue = 0, | |
4263 | .writefn = xscale_cpar_write, }, | |
2771db27 PM |
4264 | { .name = "XSCALE_AUXCR", |
4265 | .cp = 15, .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 1, .access = PL1_RW, | |
4266 | .fieldoffset = offsetof(CPUARMState, cp15.c1_xscaleauxcr), | |
4267 | .resetvalue = 0, }, | |
9b37a28c FR |
4268 | /* |
4269 | * XScale specific cache-lockdown: since we have no cache we NOP these | |
3b771579 PM |
4270 | * and hope the guest does not really rely on cache behaviour. |
4271 | */ | |
4272 | { .name = "XSCALE_LOCK_ICACHE_LINE", | |
4273 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 0, | |
4274 | .access = PL1_W, .type = ARM_CP_NOP }, | |
4275 | { .name = "XSCALE_UNLOCK_ICACHE", | |
4276 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 1, | |
4277 | .access = PL1_W, .type = ARM_CP_NOP }, | |
4278 | { .name = "XSCALE_DCACHE_LOCK", | |
4279 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 2, .opc2 = 0, | |
4280 | .access = PL1_RW, .type = ARM_CP_NOP }, | |
4281 | { .name = "XSCALE_UNLOCK_DCACHE", | |
4282 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 2, .opc2 = 1, | |
4283 | .access = PL1_W, .type = ARM_CP_NOP }, | |
1047b9d7 PM |
4284 | }; |
4285 | ||
4286 | static const ARMCPRegInfo dummy_c15_cp_reginfo[] = { | |
9b37a28c FR |
4287 | /* |
4288 | * RAZ/WI the whole crn=15 space, when we don't have a more specific | |
1047b9d7 PM |
4289 | * implementation of this implementation-defined space. |
4290 | * Ideally this should eventually disappear in favour of actually | |
4291 | * implementing the correct behaviour for all cores. | |
4292 | */ | |
4293 | { .name = "C15_IMPDEF", .cp = 15, .crn = 15, | |
4294 | .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, | |
3671cd87 | 4295 | .access = PL1_RW, |
7a0e58fa | 4296 | .type = ARM_CP_CONST | ARM_CP_NO_RAW | ARM_CP_OVERRIDE, |
d4e6df63 | 4297 | .resetvalue = 0 }, |
18032bec PM |
4298 | }; |
4299 | ||
c4804214 PM |
4300 | static const ARMCPRegInfo cache_dirty_status_cp_reginfo[] = { |
4301 | /* Cache status: RAZ because we have no cache so it's always clean */ | |
4302 | { .name = "CDSR", .cp = 15, .crn = 7, .crm = 10, .opc1 = 0, .opc2 = 6, | |
7a0e58fa | 4303 | .access = PL1_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4304 | .resetvalue = 0 }, |
c4804214 PM |
4305 | }; |
4306 | ||
4307 | static const ARMCPRegInfo cache_block_ops_cp_reginfo[] = { | |
a07d9df0 | 4308 | /* We never have a block transfer operation in progress */ |
c4804214 | 4309 | { .name = "BXSR", .cp = 15, .crn = 7, .crm = 12, .opc1 = 0, .opc2 = 4, |
7a0e58fa | 4310 | .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4311 | .resetvalue = 0 }, |
30b05bba PM |
4312 | /* The cache ops themselves: these all NOP for QEMU */ |
4313 | { .name = "IICR", .cp = 15, .crm = 5, .opc1 = 0, | |
04215eb1 | 4314 | .access = PL1_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4315 | { .name = "IDCR", .cp = 15, .crm = 6, .opc1 = 0, |
04215eb1 | 4316 | .access = PL1_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4317 | { .name = "CDCR", .cp = 15, .crm = 12, .opc1 = 0, |
04215eb1 | 4318 | .access = PL0_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4319 | { .name = "PIR", .cp = 15, .crm = 12, .opc1 = 1, |
04215eb1 | 4320 | .access = PL0_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4321 | { .name = "PDR", .cp = 15, .crm = 12, .opc1 = 2, |
04215eb1 | 4322 | .access = PL0_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4323 | { .name = "CIDCR", .cp = 15, .crm = 14, .opc1 = 0, |
04215eb1 | 4324 | .access = PL1_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
c4804214 PM |
4325 | }; |
4326 | ||
4327 | static const ARMCPRegInfo cache_test_clean_cp_reginfo[] = { | |
9b37a28c FR |
4328 | /* |
4329 | * The cache test-and-clean instructions always return (1 << 30) | |
c4804214 PM |
4330 | * to indicate that there are no dirty cache lines. |
4331 | */ | |
4332 | { .name = "TC_DCACHE", .cp = 15, .crn = 7, .crm = 10, .opc1 = 0, .opc2 = 3, | |
7a0e58fa | 4333 | .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4334 | .resetvalue = (1 << 30) }, |
c4804214 | 4335 | { .name = "TCI_DCACHE", .cp = 15, .crn = 7, .crm = 14, .opc1 = 0, .opc2 = 3, |
7a0e58fa | 4336 | .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4337 | .resetvalue = (1 << 30) }, |
c4804214 PM |
4338 | }; |
4339 | ||
34f90529 PM |
4340 | static const ARMCPRegInfo strongarm_cp_reginfo[] = { |
4341 | /* Ignore ReadBuffer accesses */ | |
4342 | { .name = "C9_READBUFFER", .cp = 15, .crn = 9, | |
4343 | .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, | |
d4e6df63 | 4344 | .access = PL1_RW, .resetvalue = 0, |
7a0e58fa | 4345 | .type = ARM_CP_CONST | ARM_CP_OVERRIDE | ARM_CP_NO_RAW }, |
34f90529 PM |
4346 | }; |
4347 | ||
731de9e6 EI |
4348 | static uint64_t midr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4349 | { | |
731de9e6 | 4350 | unsigned int cur_el = arm_current_el(env); |
731de9e6 | 4351 | |
e6ef0169 | 4352 | if (arm_is_el2_enabled(env) && cur_el == 1) { |
731de9e6 EI |
4353 | return env->cp15.vpidr_el2; |
4354 | } | |
4355 | return raw_read(env, ri); | |
4356 | } | |
4357 | ||
06a7e647 | 4358 | static uint64_t mpidr_read_val(CPUARMState *env) |
81bdde9d | 4359 | { |
2fc0cc0e | 4360 | ARMCPU *cpu = env_archcpu(env); |
eb5e1d3c PF |
4361 | uint64_t mpidr = cpu->mp_affinity; |
4362 | ||
81bdde9d | 4363 | if (arm_feature(env, ARM_FEATURE_V7MP)) { |
78dbbbe4 | 4364 | mpidr |= (1U << 31); |
9b37a28c FR |
4365 | /* |
4366 | * Cores which are uniprocessor (non-coherent) | |
81bdde9d | 4367 | * but still implement the MP extensions set |
a8e81b31 | 4368 | * bit 30. (For instance, Cortex-R5). |
81bdde9d | 4369 | */ |
a8e81b31 PC |
4370 | if (cpu->mp_is_up) { |
4371 | mpidr |= (1u << 30); | |
4372 | } | |
81bdde9d | 4373 | } |
c4241c7d | 4374 | return mpidr; |
81bdde9d PM |
4375 | } |
4376 | ||
06a7e647 EI |
4377 | static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4378 | { | |
f0d574d6 | 4379 | unsigned int cur_el = arm_current_el(env); |
f0d574d6 | 4380 | |
e6ef0169 | 4381 | if (arm_is_el2_enabled(env) && cur_el == 1) { |
f0d574d6 EI |
4382 | return env->cp15.vmpidr_el2; |
4383 | } | |
06a7e647 EI |
4384 | return mpidr_read_val(env); |
4385 | } | |
4386 | ||
7ac681cf | 4387 | static const ARMCPRegInfo lpae_cp_reginfo[] = { |
a903c449 | 4388 | /* NOP AMAIR0/1 */ |
b0fe2427 PM |
4389 | { .name = "AMAIR0", .state = ARM_CP_STATE_BOTH, |
4390 | .opc0 = 3, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 0, | |
84929218 RH |
4391 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4392 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
b0fe2427 | 4393 | /* AMAIR1 is mapped to AMAIR_EL1[63:32] */ |
7ac681cf | 4394 | { .name = "AMAIR1", .cp = 15, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 1, |
84929218 RH |
4395 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4396 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
891a2fe7 | 4397 | { .name = "PAR", .cp = 15, .crm = 7, .opc1 = 0, |
01c097f7 FA |
4398 | .access = PL1_RW, .type = ARM_CP_64BIT, .resetvalue = 0, |
4399 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.par_s), | |
4400 | offsetof(CPUARMState, cp15.par_ns)} }, | |
891a2fe7 | 4401 | { .name = "TTBR0", .cp = 15, .crm = 2, .opc1 = 0, |
84929218 RH |
4402 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4403 | .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
7dd8c9af FA |
4404 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr0_s), |
4405 | offsetof(CPUARMState, cp15.ttbr0_ns) }, | |
b061a82b | 4406 | .writefn = vmsa_ttbr_write, }, |
891a2fe7 | 4407 | { .name = "TTBR1", .cp = 15, .crm = 2, .opc1 = 1, |
84929218 RH |
4408 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4409 | .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
7dd8c9af FA |
4410 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr1_s), |
4411 | offsetof(CPUARMState, cp15.ttbr1_ns) }, | |
b061a82b | 4412 | .writefn = vmsa_ttbr_write, }, |
7ac681cf PM |
4413 | }; |
4414 | ||
c4241c7d | 4415 | static uint64_t aa64_fpcr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
b0d2b7d0 | 4416 | { |
c4241c7d | 4417 | return vfp_get_fpcr(env); |
b0d2b7d0 PM |
4418 | } |
4419 | ||
c4241c7d PM |
4420 | static void aa64_fpcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4421 | uint64_t value) | |
b0d2b7d0 PM |
4422 | { |
4423 | vfp_set_fpcr(env, value); | |
b0d2b7d0 PM |
4424 | } |
4425 | ||
c4241c7d | 4426 | static uint64_t aa64_fpsr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
b0d2b7d0 | 4427 | { |
c4241c7d | 4428 | return vfp_get_fpsr(env); |
b0d2b7d0 PM |
4429 | } |
4430 | ||
c4241c7d PM |
4431 | static void aa64_fpsr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4432 | uint64_t value) | |
b0d2b7d0 PM |
4433 | { |
4434 | vfp_set_fpsr(env, value); | |
b0d2b7d0 PM |
4435 | } |
4436 | ||
3f208fd7 PM |
4437 | static CPAccessResult aa64_daif_access(CPUARMState *env, const ARMCPRegInfo *ri, |
4438 | bool isread) | |
c2b820fe | 4439 | { |
aaec1432 | 4440 | if (arm_current_el(env) == 0 && !(arm_sctlr(env, 0) & SCTLR_UMA)) { |
c2b820fe PM |
4441 | return CP_ACCESS_TRAP; |
4442 | } | |
4443 | return CP_ACCESS_OK; | |
4444 | } | |
4445 | ||
4446 | static void aa64_daif_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4447 | uint64_t value) | |
4448 | { | |
4449 | env->daif = value & PSTATE_DAIF; | |
4450 | } | |
4451 | ||
220f508f RH |
4452 | static uint64_t aa64_pan_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4453 | { | |
4454 | return env->pstate & PSTATE_PAN; | |
4455 | } | |
4456 | ||
4457 | static void aa64_pan_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4458 | uint64_t value) | |
4459 | { | |
4460 | env->pstate = (env->pstate & ~PSTATE_PAN) | (value & PSTATE_PAN); | |
4461 | } | |
4462 | ||
4463 | static const ARMCPRegInfo pan_reginfo = { | |
4464 | .name = "PAN", .state = ARM_CP_STATE_AA64, | |
4465 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 3, | |
4466 | .type = ARM_CP_NO_RAW, .access = PL1_RW, | |
4467 | .readfn = aa64_pan_read, .writefn = aa64_pan_write | |
4468 | }; | |
4469 | ||
9eeb7a1c RH |
4470 | static uint64_t aa64_uao_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4471 | { | |
4472 | return env->pstate & PSTATE_UAO; | |
4473 | } | |
4474 | ||
4475 | static void aa64_uao_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4476 | uint64_t value) | |
4477 | { | |
4478 | env->pstate = (env->pstate & ~PSTATE_UAO) | (value & PSTATE_UAO); | |
4479 | } | |
4480 | ||
4481 | static const ARMCPRegInfo uao_reginfo = { | |
4482 | .name = "UAO", .state = ARM_CP_STATE_AA64, | |
4483 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 4, | |
4484 | .type = ARM_CP_NO_RAW, .access = PL1_RW, | |
4485 | .readfn = aa64_uao_read, .writefn = aa64_uao_write | |
4486 | }; | |
4487 | ||
dc8b1853 RC |
4488 | static uint64_t aa64_dit_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4489 | { | |
4490 | return env->pstate & PSTATE_DIT; | |
4491 | } | |
4492 | ||
4493 | static void aa64_dit_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4494 | uint64_t value) | |
4495 | { | |
4496 | env->pstate = (env->pstate & ~PSTATE_DIT) | (value & PSTATE_DIT); | |
4497 | } | |
4498 | ||
4499 | static const ARMCPRegInfo dit_reginfo = { | |
4500 | .name = "DIT", .state = ARM_CP_STATE_AA64, | |
4501 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 5, | |
4502 | .type = ARM_CP_NO_RAW, .access = PL0_RW, | |
4503 | .readfn = aa64_dit_read, .writefn = aa64_dit_write | |
4504 | }; | |
4505 | ||
f2f68a78 RC |
4506 | static uint64_t aa64_ssbs_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4507 | { | |
4508 | return env->pstate & PSTATE_SSBS; | |
4509 | } | |
4510 | ||
4511 | static void aa64_ssbs_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4512 | uint64_t value) | |
4513 | { | |
4514 | env->pstate = (env->pstate & ~PSTATE_SSBS) | (value & PSTATE_SSBS); | |
4515 | } | |
4516 | ||
4517 | static const ARMCPRegInfo ssbs_reginfo = { | |
4518 | .name = "SSBS", .state = ARM_CP_STATE_AA64, | |
4519 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 6, | |
4520 | .type = ARM_CP_NO_RAW, .access = PL0_RW, | |
4521 | .readfn = aa64_ssbs_read, .writefn = aa64_ssbs_write | |
4522 | }; | |
4523 | ||
38262d8a RH |
4524 | static CPAccessResult aa64_cacheop_poc_access(CPUARMState *env, |
4525 | const ARMCPRegInfo *ri, | |
4526 | bool isread) | |
8af35c37 | 4527 | { |
38262d8a RH |
4528 | /* Cache invalidate/clean to Point of Coherency or Persistence... */ |
4529 | switch (arm_current_el(env)) { | |
4530 | case 0: | |
4531 | /* ... EL0 must UNDEF unless SCTLR_EL1.UCI is set. */ | |
4532 | if (!(arm_sctlr(env, 0) & SCTLR_UCI)) { | |
4533 | return CP_ACCESS_TRAP; | |
4534 | } | |
4535 | /* fall through */ | |
4536 | case 1: | |
4537 | /* ... EL1 must trap to EL2 if HCR_EL2.TPCP is set. */ | |
4538 | if (arm_hcr_el2_eff(env) & HCR_TPCP) { | |
4539 | return CP_ACCESS_TRAP_EL2; | |
4540 | } | |
4541 | break; | |
8af35c37 PM |
4542 | } |
4543 | return CP_ACCESS_OK; | |
4544 | } | |
4545 | ||
2d3ce4c6 | 4546 | static CPAccessResult do_cacheop_pou_access(CPUARMState *env, uint64_t hcrflags) |
1bed4d2e | 4547 | { |
38262d8a | 4548 | /* Cache invalidate/clean to Point of Unification... */ |
1bed4d2e RH |
4549 | switch (arm_current_el(env)) { |
4550 | case 0: | |
4551 | /* ... EL0 must UNDEF unless SCTLR_EL1.UCI is set. */ | |
4552 | if (!(arm_sctlr(env, 0) & SCTLR_UCI)) { | |
4553 | return CP_ACCESS_TRAP; | |
4554 | } | |
4555 | /* fall through */ | |
4556 | case 1: | |
2d3ce4c6 PM |
4557 | /* ... EL1 must trap to EL2 if relevant HCR_EL2 flags are set. */ |
4558 | if (arm_hcr_el2_eff(env) & hcrflags) { | |
1bed4d2e RH |
4559 | return CP_ACCESS_TRAP_EL2; |
4560 | } | |
4561 | break; | |
4562 | } | |
4563 | return CP_ACCESS_OK; | |
4564 | } | |
4565 | ||
2d3ce4c6 PM |
4566 | static CPAccessResult access_ticab(CPUARMState *env, const ARMCPRegInfo *ri, |
4567 | bool isread) | |
4568 | { | |
4569 | return do_cacheop_pou_access(env, HCR_TICAB | HCR_TPU); | |
4570 | } | |
4571 | ||
4572 | static CPAccessResult access_tocu(CPUARMState *env, const ARMCPRegInfo *ri, | |
4573 | bool isread) | |
4574 | { | |
4575 | return do_cacheop_pou_access(env, HCR_TOCU | HCR_TPU); | |
4576 | } | |
4577 | ||
9b37a28c FR |
4578 | /* |
4579 | * See: D4.7.2 TLB maintenance requirements and the TLB maintenance instructions | |
dbb1fb27 AB |
4580 | * Page D4-1736 (DDI0487A.b) |
4581 | */ | |
4582 | ||
b7e0730d RH |
4583 | static int vae1_tlbmask(CPUARMState *env) |
4584 | { | |
e04a5752 | 4585 | uint64_t hcr = arm_hcr_el2_eff(env); |
bc944d3a | 4586 | uint16_t mask; |
e04a5752 RDC |
4587 | |
4588 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
bc944d3a RDC |
4589 | mask = ARMMMUIdxBit_E20_2 | |
4590 | ARMMMUIdxBit_E20_2_PAN | | |
4591 | ARMMMUIdxBit_E20_0; | |
b7e0730d | 4592 | } else { |
bc944d3a | 4593 | mask = ARMMMUIdxBit_E10_1 | |
452ef8cb RH |
4594 | ARMMMUIdxBit_E10_1_PAN | |
4595 | ARMMMUIdxBit_E10_0; | |
b7e0730d | 4596 | } |
bc944d3a | 4597 | return mask; |
b7e0730d RH |
4598 | } |
4599 | ||
ea04dce7 RH |
4600 | /* Return 56 if TBI is enabled, 64 otherwise. */ |
4601 | static int tlbbits_for_regime(CPUARMState *env, ARMMMUIdx mmu_idx, | |
4602 | uint64_t addr) | |
4603 | { | |
c1547bba | 4604 | uint64_t tcr = regime_tcr(env, mmu_idx); |
ea04dce7 RH |
4605 | int tbi = aa64_va_parameter_tbi(tcr, mmu_idx); |
4606 | int select = extract64(addr, 55, 1); | |
4607 | ||
4608 | return (tbi >> select) & 1 ? 56 : 64; | |
4609 | } | |
4610 | ||
4611 | static int vae1_tlbbits(CPUARMState *env, uint64_t addr) | |
4612 | { | |
b6ad6062 | 4613 | uint64_t hcr = arm_hcr_el2_eff(env); |
ea04dce7 RH |
4614 | ARMMMUIdx mmu_idx; |
4615 | ||
4616 | /* Only the regime of the mmu_idx below is significant. */ | |
b6ad6062 | 4617 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { |
ea04dce7 RH |
4618 | mmu_idx = ARMMMUIdx_E20_0; |
4619 | } else { | |
4620 | mmu_idx = ARMMMUIdx_E10_0; | |
4621 | } | |
b6ad6062 | 4622 | |
ea04dce7 RH |
4623 | return tlbbits_for_regime(env, mmu_idx, addr); |
4624 | } | |
4625 | ||
fd3ed969 PM |
4626 | static void tlbi_aa64_vmalle1is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4627 | uint64_t value) | |
168aa23b | 4628 | { |
29a0af61 | 4629 | CPUState *cs = env_cpu(env); |
b7e0730d | 4630 | int mask = vae1_tlbmask(env); |
dbb1fb27 | 4631 | |
b7e0730d | 4632 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); |
168aa23b PM |
4633 | } |
4634 | ||
b4ab8ce9 PM |
4635 | static void tlbi_aa64_vmalle1_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4636 | uint64_t value) | |
4637 | { | |
29a0af61 | 4638 | CPUState *cs = env_cpu(env); |
b7e0730d | 4639 | int mask = vae1_tlbmask(env); |
b4ab8ce9 PM |
4640 | |
4641 | if (tlb_force_broadcast(env)) { | |
527db2be RH |
4642 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); |
4643 | } else { | |
4644 | tlb_flush_by_mmuidx(cs, mask); | |
b4ab8ce9 | 4645 | } |
b4ab8ce9 PM |
4646 | } |
4647 | ||
85d0dc9f RH |
4648 | static int e2_tlbmask(CPUARMState *env) |
4649 | { | |
d902ae75 RH |
4650 | return (ARMMMUIdxBit_E20_0 | |
4651 | ARMMMUIdxBit_E20_2 | | |
4652 | ARMMMUIdxBit_E20_2_PAN | | |
4653 | ARMMMUIdxBit_E2); | |
85d0dc9f RH |
4654 | } |
4655 | ||
90c19cdf RH |
4656 | static void tlbi_aa64_alle1_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4657 | uint64_t value) | |
4658 | { | |
4659 | CPUState *cs = env_cpu(env); | |
4660 | int mask = alle1_tlbmask(env); | |
4661 | ||
4662 | tlb_flush_by_mmuidx(cs, mask); | |
4663 | } | |
4664 | ||
fd3ed969 | 4665 | static void tlbi_aa64_alle2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
fa439fc5 PM |
4666 | uint64_t value) |
4667 | { | |
85d0dc9f RH |
4668 | CPUState *cs = env_cpu(env); |
4669 | int mask = e2_tlbmask(env); | |
fd3ed969 | 4670 | |
85d0dc9f | 4671 | tlb_flush_by_mmuidx(cs, mask); |
fd3ed969 PM |
4672 | } |
4673 | ||
43efaa33 PM |
4674 | static void tlbi_aa64_alle3_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4675 | uint64_t value) | |
4676 | { | |
2fc0cc0e | 4677 | ARMCPU *cpu = env_archcpu(env); |
43efaa33 PM |
4678 | CPUState *cs = CPU(cpu); |
4679 | ||
d902ae75 | 4680 | tlb_flush_by_mmuidx(cs, ARMMMUIdxBit_E3); |
43efaa33 PM |
4681 | } |
4682 | ||
fd3ed969 PM |
4683 | static void tlbi_aa64_alle1is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4684 | uint64_t value) | |
4685 | { | |
29a0af61 | 4686 | CPUState *cs = env_cpu(env); |
90c19cdf RH |
4687 | int mask = alle1_tlbmask(env); |
4688 | ||
4689 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); | |
fa439fc5 PM |
4690 | } |
4691 | ||
2bfb9d75 PM |
4692 | static void tlbi_aa64_alle2is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4693 | uint64_t value) | |
4694 | { | |
29a0af61 | 4695 | CPUState *cs = env_cpu(env); |
85d0dc9f | 4696 | int mask = e2_tlbmask(env); |
2bfb9d75 | 4697 | |
85d0dc9f | 4698 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); |
2bfb9d75 PM |
4699 | } |
4700 | ||
43efaa33 PM |
4701 | static void tlbi_aa64_alle3is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4702 | uint64_t value) | |
4703 | { | |
29a0af61 | 4704 | CPUState *cs = env_cpu(env); |
43efaa33 | 4705 | |
d902ae75 | 4706 | tlb_flush_by_mmuidx_all_cpus_synced(cs, ARMMMUIdxBit_E3); |
43efaa33 PM |
4707 | } |
4708 | ||
fd3ed969 PM |
4709 | static void tlbi_aa64_vae2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4710 | uint64_t value) | |
fa439fc5 | 4711 | { |
9b37a28c FR |
4712 | /* |
4713 | * Invalidate by VA, EL2 | |
fd3ed969 PM |
4714 | * Currently handles both VAE2 and VALE2, since we don't support |
4715 | * flush-last-level-only. | |
4716 | */ | |
85d0dc9f RH |
4717 | CPUState *cs = env_cpu(env); |
4718 | int mask = e2_tlbmask(env); | |
fd3ed969 PM |
4719 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
4720 | ||
85d0dc9f | 4721 | tlb_flush_page_by_mmuidx(cs, pageaddr, mask); |
fd3ed969 PM |
4722 | } |
4723 | ||
43efaa33 PM |
4724 | static void tlbi_aa64_vae3_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4725 | uint64_t value) | |
4726 | { | |
9b37a28c FR |
4727 | /* |
4728 | * Invalidate by VA, EL3 | |
43efaa33 PM |
4729 | * Currently handles both VAE3 and VALE3, since we don't support |
4730 | * flush-last-level-only. | |
4731 | */ | |
2fc0cc0e | 4732 | ARMCPU *cpu = env_archcpu(env); |
43efaa33 PM |
4733 | CPUState *cs = CPU(cpu); |
4734 | uint64_t pageaddr = sextract64(value << 12, 0, 56); | |
4735 | ||
d902ae75 | 4736 | tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdxBit_E3); |
43efaa33 PM |
4737 | } |
4738 | ||
fd3ed969 PM |
4739 | static void tlbi_aa64_vae1is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4740 | uint64_t value) | |
4741 | { | |
90c19cdf RH |
4742 | CPUState *cs = env_cpu(env); |
4743 | int mask = vae1_tlbmask(env); | |
fa439fc5 | 4744 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
ea04dce7 | 4745 | int bits = vae1_tlbbits(env, pageaddr); |
fa439fc5 | 4746 | |
ea04dce7 | 4747 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, mask, bits); |
fa439fc5 PM |
4748 | } |
4749 | ||
b4ab8ce9 PM |
4750 | static void tlbi_aa64_vae1_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4751 | uint64_t value) | |
4752 | { | |
9b37a28c FR |
4753 | /* |
4754 | * Invalidate by VA, EL1&0 (AArch64 version). | |
b4ab8ce9 PM |
4755 | * Currently handles all of VAE1, VAAE1, VAALE1 and VALE1, |
4756 | * since we don't support flush-for-specific-ASID-only or | |
4757 | * flush-last-level-only. | |
4758 | */ | |
90c19cdf RH |
4759 | CPUState *cs = env_cpu(env); |
4760 | int mask = vae1_tlbmask(env); | |
b4ab8ce9 | 4761 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
ea04dce7 | 4762 | int bits = vae1_tlbbits(env, pageaddr); |
b4ab8ce9 PM |
4763 | |
4764 | if (tlb_force_broadcast(env)) { | |
ea04dce7 | 4765 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, mask, bits); |
527db2be | 4766 | } else { |
ea04dce7 | 4767 | tlb_flush_page_bits_by_mmuidx(cs, pageaddr, mask, bits); |
b4ab8ce9 | 4768 | } |
b4ab8ce9 PM |
4769 | } |
4770 | ||
fd3ed969 PM |
4771 | static void tlbi_aa64_vae2is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4772 | uint64_t value) | |
fa439fc5 | 4773 | { |
29a0af61 | 4774 | CPUState *cs = env_cpu(env); |
fd3ed969 | 4775 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
d902ae75 | 4776 | int bits = tlbbits_for_regime(env, ARMMMUIdx_E2, pageaddr); |
fa439fc5 | 4777 | |
d902ae75 RH |
4778 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, |
4779 | ARMMMUIdxBit_E2, bits); | |
fa439fc5 PM |
4780 | } |
4781 | ||
43efaa33 PM |
4782 | static void tlbi_aa64_vae3is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4783 | uint64_t value) | |
4784 | { | |
29a0af61 | 4785 | CPUState *cs = env_cpu(env); |
43efaa33 | 4786 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
d902ae75 | 4787 | int bits = tlbbits_for_regime(env, ARMMMUIdx_E3, pageaddr); |
43efaa33 | 4788 | |
ea04dce7 | 4789 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, |
d902ae75 | 4790 | ARMMMUIdxBit_E3, bits); |
43efaa33 PM |
4791 | } |
4792 | ||
575a94af RH |
4793 | static int ipas2e1_tlbmask(CPUARMState *env, int64_t value) |
4794 | { | |
4795 | /* | |
4796 | * The MSB of value is the NS field, which only applies if SEL2 | |
4797 | * is implemented and SCR_EL3.NS is not set (i.e. in secure mode). | |
4798 | */ | |
4799 | return (value >= 0 | |
4800 | && cpu_isar_feature(aa64_sel2, env_archcpu(env)) | |
4801 | && arm_is_secure_below_el3(env) | |
4802 | ? ARMMMUIdxBit_Stage2_S | |
4803 | : ARMMMUIdxBit_Stage2); | |
4804 | } | |
4805 | ||
4806 | static void tlbi_aa64_ipas2e1_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4807 | uint64_t value) | |
4808 | { | |
4809 | CPUState *cs = env_cpu(env); | |
4810 | int mask = ipas2e1_tlbmask(env, value); | |
4811 | uint64_t pageaddr = sextract64(value << 12, 0, 56); | |
4812 | ||
4813 | if (tlb_force_broadcast(env)) { | |
4814 | tlb_flush_page_by_mmuidx_all_cpus_synced(cs, pageaddr, mask); | |
4815 | } else { | |
4816 | tlb_flush_page_by_mmuidx(cs, pageaddr, mask); | |
4817 | } | |
4818 | } | |
4819 | ||
4820 | static void tlbi_aa64_ipas2e1is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4821 | uint64_t value) | |
4822 | { | |
4823 | CPUState *cs = env_cpu(env); | |
4824 | int mask = ipas2e1_tlbmask(env, value); | |
4825 | uint64_t pageaddr = sextract64(value << 12, 0, 56); | |
4826 | ||
4827 | tlb_flush_page_by_mmuidx_all_cpus_synced(cs, pageaddr, mask); | |
4828 | } | |
4829 | ||
84940ed8 | 4830 | #ifdef TARGET_AARCH64 |
ab1cdb47 RH |
4831 | typedef struct { |
4832 | uint64_t base; | |
84940ed8 | 4833 | uint64_t length; |
ab1cdb47 RH |
4834 | } TLBIRange; |
4835 | ||
3c003f70 PM |
4836 | static ARMGranuleSize tlbi_range_tg_to_gran_size(int tg) |
4837 | { | |
4838 | /* | |
4839 | * Note that the TLBI range TG field encoding differs from both | |
4840 | * TG0 and TG1 encodings. | |
4841 | */ | |
4842 | switch (tg) { | |
4843 | case 1: | |
4844 | return Gran4K; | |
4845 | case 2: | |
4846 | return Gran16K; | |
4847 | case 3: | |
4848 | return Gran64K; | |
4849 | default: | |
4850 | return GranInvalid; | |
4851 | } | |
4852 | } | |
4853 | ||
ab1cdb47 RH |
4854 | static TLBIRange tlbi_aa64_get_range(CPUARMState *env, ARMMMUIdx mmuidx, |
4855 | uint64_t value) | |
4856 | { | |
4857 | unsigned int page_size_granule, page_shift, num, scale, exponent; | |
3974ff93 RH |
4858 | /* Extract one bit to represent the va selector in use. */ |
4859 | uint64_t select = sextract64(value, 36, 1); | |
4860 | ARMVAParameters param = aa64_va_parameters(env, select, mmuidx, true); | |
ab1cdb47 | 4861 | TLBIRange ret = { }; |
3c003f70 | 4862 | ARMGranuleSize gran; |
84940ed8 | 4863 | |
84940ed8 | 4864 | page_size_granule = extract64(value, 46, 2); |
3c003f70 | 4865 | gran = tlbi_range_tg_to_gran_size(page_size_granule); |
84940ed8 | 4866 | |
3974ff93 | 4867 | /* The granule encoded in value must match the granule in use. */ |
3c003f70 | 4868 | if (gran != param.gran) { |
3974ff93 | 4869 | qemu_log_mask(LOG_GUEST_ERROR, "Invalid tlbi page size granule %d\n", |
84940ed8 | 4870 | page_size_granule); |
ab1cdb47 | 4871 | return ret; |
84940ed8 RC |
4872 | } |
4873 | ||
3c003f70 | 4874 | page_shift = arm_granule_bits(gran); |
ab1cdb47 RH |
4875 | num = extract64(value, 39, 5); |
4876 | scale = extract64(value, 44, 2); | |
84940ed8 | 4877 | exponent = (5 * scale) + 1; |
84940ed8 | 4878 | |
ab1cdb47 | 4879 | ret.length = (num + 1) << (exponent + page_shift); |
84940ed8 | 4880 | |
3974ff93 | 4881 | if (param.select) { |
d976de21 | 4882 | ret.base = sextract64(value, 0, 37); |
84940ed8 | 4883 | } else { |
d976de21 | 4884 | ret.base = extract64(value, 0, 37); |
84940ed8 | 4885 | } |
ef56c242 RH |
4886 | if (param.ds) { |
4887 | /* | |
4888 | * With DS=1, BaseADDR is always shifted 16 so that it is able | |
4889 | * to address all 52 va bits. The input address is perforce | |
4890 | * aligned on a 64k boundary regardless of translation granule. | |
4891 | */ | |
4892 | page_shift = 16; | |
4893 | } | |
d976de21 | 4894 | ret.base <<= page_shift; |
84940ed8 | 4895 | |
ab1cdb47 | 4896 | return ret; |
84940ed8 RC |
4897 | } |
4898 | ||
4899 | static void do_rvae_write(CPUARMState *env, uint64_t value, | |
4900 | int idxmap, bool synced) | |
4901 | { | |
4902 | ARMMMUIdx one_idx = ARM_MMU_IDX_A | ctz32(idxmap); | |
ab1cdb47 | 4903 | TLBIRange range; |
84940ed8 RC |
4904 | int bits; |
4905 | ||
ab1cdb47 RH |
4906 | range = tlbi_aa64_get_range(env, one_idx, value); |
4907 | bits = tlbbits_for_regime(env, one_idx, range.base); | |
84940ed8 RC |
4908 | |
4909 | if (synced) { | |
4910 | tlb_flush_range_by_mmuidx_all_cpus_synced(env_cpu(env), | |
ab1cdb47 RH |
4911 | range.base, |
4912 | range.length, | |
84940ed8 RC |
4913 | idxmap, |
4914 | bits); | |
4915 | } else { | |
ab1cdb47 RH |
4916 | tlb_flush_range_by_mmuidx(env_cpu(env), range.base, |
4917 | range.length, idxmap, bits); | |
84940ed8 RC |
4918 | } |
4919 | } | |
4920 | ||
4921 | static void tlbi_aa64_rvae1_write(CPUARMState *env, | |
4922 | const ARMCPRegInfo *ri, | |
4923 | uint64_t value) | |
4924 | { | |
4925 | /* | |
4926 | * Invalidate by VA range, EL1&0. | |
4927 | * Currently handles all of RVAE1, RVAAE1, RVAALE1 and RVALE1, | |
4928 | * since we don't support flush-for-specific-ASID-only or | |
4929 | * flush-last-level-only. | |
4930 | */ | |
4931 | ||
4932 | do_rvae_write(env, value, vae1_tlbmask(env), | |
4933 | tlb_force_broadcast(env)); | |
4934 | } | |
4935 | ||
4936 | static void tlbi_aa64_rvae1is_write(CPUARMState *env, | |
4937 | const ARMCPRegInfo *ri, | |
4938 | uint64_t value) | |
4939 | { | |
4940 | /* | |
4941 | * Invalidate by VA range, Inner/Outer Shareable EL1&0. | |
4942 | * Currently handles all of RVAE1IS, RVAE1OS, RVAAE1IS, RVAAE1OS, | |
4943 | * RVAALE1IS, RVAALE1OS, RVALE1IS and RVALE1OS, since we don't support | |
4944 | * flush-for-specific-ASID-only, flush-last-level-only or inner/outer | |
4945 | * shareable specific flushes. | |
4946 | */ | |
4947 | ||
4948 | do_rvae_write(env, value, vae1_tlbmask(env), true); | |
4949 | } | |
4950 | ||
4951 | static int vae2_tlbmask(CPUARMState *env) | |
4952 | { | |
d902ae75 | 4953 | return ARMMMUIdxBit_E2; |
84940ed8 RC |
4954 | } |
4955 | ||
4956 | static void tlbi_aa64_rvae2_write(CPUARMState *env, | |
4957 | const ARMCPRegInfo *ri, | |
4958 | uint64_t value) | |
4959 | { | |
4960 | /* | |
4961 | * Invalidate by VA range, EL2. | |
4962 | * Currently handles all of RVAE2 and RVALE2, | |
4963 | * since we don't support flush-for-specific-ASID-only or | |
4964 | * flush-last-level-only. | |
4965 | */ | |
4966 | ||
4967 | do_rvae_write(env, value, vae2_tlbmask(env), | |
4968 | tlb_force_broadcast(env)); | |
4969 | ||
4970 | ||
4971 | } | |
4972 | ||
4973 | static void tlbi_aa64_rvae2is_write(CPUARMState *env, | |
4974 | const ARMCPRegInfo *ri, | |
4975 | uint64_t value) | |
4976 | { | |
4977 | /* | |
4978 | * Invalidate by VA range, Inner/Outer Shareable, EL2. | |
4979 | * Currently handles all of RVAE2IS, RVAE2OS, RVALE2IS and RVALE2OS, | |
4980 | * since we don't support flush-for-specific-ASID-only, | |
4981 | * flush-last-level-only or inner/outer shareable specific flushes. | |
4982 | */ | |
4983 | ||
4984 | do_rvae_write(env, value, vae2_tlbmask(env), true); | |
4985 | ||
4986 | } | |
4987 | ||
4988 | static void tlbi_aa64_rvae3_write(CPUARMState *env, | |
4989 | const ARMCPRegInfo *ri, | |
4990 | uint64_t value) | |
4991 | { | |
4992 | /* | |
4993 | * Invalidate by VA range, EL3. | |
4994 | * Currently handles all of RVAE3 and RVALE3, | |
4995 | * since we don't support flush-for-specific-ASID-only or | |
4996 | * flush-last-level-only. | |
4997 | */ | |
4998 | ||
d902ae75 | 4999 | do_rvae_write(env, value, ARMMMUIdxBit_E3, tlb_force_broadcast(env)); |
84940ed8 RC |
5000 | } |
5001 | ||
5002 | static void tlbi_aa64_rvae3is_write(CPUARMState *env, | |
5003 | const ARMCPRegInfo *ri, | |
5004 | uint64_t value) | |
5005 | { | |
5006 | /* | |
5007 | * Invalidate by VA range, EL3, Inner/Outer Shareable. | |
5008 | * Currently handles all of RVAE3IS, RVAE3OS, RVALE3IS and RVALE3OS, | |
5009 | * since we don't support flush-for-specific-ASID-only, | |
5010 | * flush-last-level-only or inner/outer specific flushes. | |
5011 | */ | |
5012 | ||
d902ae75 | 5013 | do_rvae_write(env, value, ARMMMUIdxBit_E3, true); |
84940ed8 | 5014 | } |
575a94af RH |
5015 | |
5016 | static void tlbi_aa64_ripas2e1_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
5017 | uint64_t value) | |
5018 | { | |
5019 | do_rvae_write(env, value, ipas2e1_tlbmask(env, value), | |
5020 | tlb_force_broadcast(env)); | |
5021 | } | |
5022 | ||
5023 | static void tlbi_aa64_ripas2e1is_write(CPUARMState *env, | |
5024 | const ARMCPRegInfo *ri, | |
5025 | uint64_t value) | |
5026 | { | |
5027 | do_rvae_write(env, value, ipas2e1_tlbmask(env, value), true); | |
5028 | } | |
84940ed8 RC |
5029 | #endif |
5030 | ||
3f208fd7 PM |
5031 | static CPAccessResult aa64_zva_access(CPUARMState *env, const ARMCPRegInfo *ri, |
5032 | bool isread) | |
aca3f40b | 5033 | { |
4351cb72 RH |
5034 | int cur_el = arm_current_el(env); |
5035 | ||
5036 | if (cur_el < 2) { | |
5037 | uint64_t hcr = arm_hcr_el2_eff(env); | |
5038 | ||
5039 | if (cur_el == 0) { | |
5040 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
5041 | if (!(env->cp15.sctlr_el[2] & SCTLR_DZE)) { | |
5042 | return CP_ACCESS_TRAP_EL2; | |
5043 | } | |
5044 | } else { | |
5045 | if (!(env->cp15.sctlr_el[1] & SCTLR_DZE)) { | |
5046 | return CP_ACCESS_TRAP; | |
5047 | } | |
5048 | if (hcr & HCR_TDZ) { | |
5049 | return CP_ACCESS_TRAP_EL2; | |
5050 | } | |
5051 | } | |
5052 | } else if (hcr & HCR_TDZ) { | |
5053 | return CP_ACCESS_TRAP_EL2; | |
5054 | } | |
aca3f40b PM |
5055 | } |
5056 | return CP_ACCESS_OK; | |
5057 | } | |
5058 | ||
5059 | static uint64_t aa64_dczid_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
5060 | { | |
2fc0cc0e | 5061 | ARMCPU *cpu = env_archcpu(env); |
aca3f40b PM |
5062 | int dzp_bit = 1 << 4; |
5063 | ||
5064 | /* DZP indicates whether DC ZVA access is allowed */ | |
3f208fd7 | 5065 | if (aa64_zva_access(env, NULL, false) == CP_ACCESS_OK) { |
aca3f40b PM |
5066 | dzp_bit = 0; |
5067 | } | |
5068 | return cpu->dcz_blocksize | dzp_bit; | |
5069 | } | |
5070 | ||
3f208fd7 PM |
5071 | static CPAccessResult sp_el0_access(CPUARMState *env, const ARMCPRegInfo *ri, |
5072 | bool isread) | |
f502cfc2 | 5073 | { |
cdcf1405 | 5074 | if (!(env->pstate & PSTATE_SP)) { |
9b37a28c FR |
5075 | /* |
5076 | * Access to SP_EL0 is undefined if it's being used as | |
f502cfc2 PM |
5077 | * the stack pointer. |
5078 | */ | |
5079 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
5080 | } | |
5081 | return CP_ACCESS_OK; | |
5082 | } | |
5083 | ||
5084 | static uint64_t spsel_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
5085 | { | |
5086 | return env->pstate & PSTATE_SP; | |
5087 | } | |
5088 | ||
5089 | static void spsel_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) | |
5090 | { | |
5091 | update_spsel(env, val); | |
5092 | } | |
5093 | ||
137feaa9 FA |
5094 | static void sctlr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5095 | uint64_t value) | |
5096 | { | |
2fc0cc0e | 5097 | ARMCPU *cpu = env_archcpu(env); |
137feaa9 | 5098 | |
f00faf13 RH |
5099 | if (arm_feature(env, ARM_FEATURE_PMSA) && !cpu->has_mpu) { |
5100 | /* M bit is RAZ/WI for PMSA with no MPU implemented */ | |
5101 | value &= ~SCTLR_M; | |
5102 | } | |
5103 | ||
5104 | /* ??? Lots of these bits are not implemented. */ | |
5105 | ||
5106 | if (ri->state == ARM_CP_STATE_AA64 && !cpu_isar_feature(aa64_mte, cpu)) { | |
5107 | if (ri->opc1 == 6) { /* SCTLR_EL3 */ | |
5108 | value &= ~(SCTLR_ITFSB | SCTLR_TCF | SCTLR_ATA); | |
5109 | } else { | |
5110 | value &= ~(SCTLR_ITFSB | SCTLR_TCF0 | SCTLR_TCF | | |
5111 | SCTLR_ATA0 | SCTLR_ATA); | |
5112 | } | |
5113 | } | |
5114 | ||
137feaa9 | 5115 | if (raw_read(env, ri) == value) { |
9b37a28c FR |
5116 | /* |
5117 | * Skip the TLB flush if nothing actually changed; Linux likes | |
137feaa9 FA |
5118 | * to do a lot of pointless SCTLR writes. |
5119 | */ | |
5120 | return; | |
5121 | } | |
5122 | ||
5123 | raw_write(env, ri, value); | |
f00faf13 | 5124 | |
137feaa9 | 5125 | /* This may enable/disable the MMU, so do a TLB flush. */ |
d10eb08f | 5126 | tlb_flush(CPU(cpu)); |
2e5dcf36 RH |
5127 | |
5128 | if (ri->type & ARM_CP_SUPPRESS_TB_END) { | |
5129 | /* | |
5130 | * Normally we would always end the TB on an SCTLR write; see the | |
5131 | * comment in ARMCPRegInfo sctlr initialization below for why Xscale | |
5132 | * is special. Setting ARM_CP_SUPPRESS_TB_END also stops the rebuild | |
5133 | * of hflags from the translator, so do it here. | |
5134 | */ | |
5135 | arm_rebuild_hflags(env); | |
5136 | } | |
137feaa9 FA |
5137 | } |
5138 | ||
80d2b43b PM |
5139 | static void mdcr_el3_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5140 | uint64_t value) | |
a8d64e73 | 5141 | { |
01765386 PM |
5142 | /* |
5143 | * Some MDCR_EL3 bits affect whether PMU counters are running: | |
5144 | * if we are trying to change any of those then we must | |
5145 | * bracket this update with PMU start/finish calls. | |
5146 | */ | |
5147 | bool pmu_op = (env->cp15.mdcr_el3 ^ value) & MDCR_EL3_PMU_ENABLE_BITS; | |
5148 | ||
5149 | if (pmu_op) { | |
5150 | pmu_op_start(env); | |
5151 | } | |
80d2b43b | 5152 | env->cp15.mdcr_el3 = value; |
01765386 PM |
5153 | if (pmu_op) { |
5154 | pmu_op_finish(env); | |
5155 | } | |
5156 | } | |
5157 | ||
80d2b43b PM |
5158 | static void sdcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5159 | uint64_t value) | |
5160 | { | |
5161 | /* Not all bits defined for MDCR_EL3 exist in the AArch32 SDCR */ | |
5162 | mdcr_el3_write(env, ri, value & SDCR_VALID_MASK); | |
5163 | } | |
5164 | ||
01765386 PM |
5165 | static void mdcr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5166 | uint64_t value) | |
5167 | { | |
5168 | /* | |
5169 | * Some MDCR_EL2 bits affect whether PMU counters are running: | |
5170 | * if we are trying to change any of those then we must | |
5171 | * bracket this update with PMU start/finish calls. | |
5172 | */ | |
5173 | bool pmu_op = (env->cp15.mdcr_el2 ^ value) & MDCR_EL2_PMU_ENABLE_BITS; | |
5174 | ||
5175 | if (pmu_op) { | |
5176 | pmu_op_start(env); | |
5177 | } | |
5178 | env->cp15.mdcr_el2 = value; | |
5179 | if (pmu_op) { | |
5180 | pmu_op_finish(env); | |
5181 | } | |
a8d64e73 PM |
5182 | } |
5183 | ||
b0d2b7d0 | 5184 | static const ARMCPRegInfo v8_cp_reginfo[] = { |
9b37a28c FR |
5185 | /* |
5186 | * Minimal set of EL0-visible registers. This will need to be expanded | |
b0d2b7d0 PM |
5187 | * significantly for system emulation of AArch64 CPUs. |
5188 | */ | |
5189 | { .name = "NZCV", .state = ARM_CP_STATE_AA64, | |
5190 | .opc0 = 3, .opc1 = 3, .opc2 = 0, .crn = 4, .crm = 2, | |
5191 | .access = PL0_RW, .type = ARM_CP_NZCV }, | |
c2b820fe PM |
5192 | { .name = "DAIF", .state = ARM_CP_STATE_AA64, |
5193 | .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 4, .crm = 2, | |
7a0e58fa | 5194 | .type = ARM_CP_NO_RAW, |
c2b820fe PM |
5195 | .access = PL0_RW, .accessfn = aa64_daif_access, |
5196 | .fieldoffset = offsetof(CPUARMState, daif), | |
5197 | .writefn = aa64_daif_write, .resetfn = arm_cp_reset_ignore }, | |
b0d2b7d0 PM |
5198 | { .name = "FPCR", .state = ARM_CP_STATE_AA64, |
5199 | .opc0 = 3, .opc1 = 3, .opc2 = 0, .crn = 4, .crm = 4, | |
b916c9c3 | 5200 | .access = PL0_RW, .type = ARM_CP_FPU | ARM_CP_SUPPRESS_TB_END, |
fe03d45f | 5201 | .readfn = aa64_fpcr_read, .writefn = aa64_fpcr_write }, |
b0d2b7d0 PM |
5202 | { .name = "FPSR", .state = ARM_CP_STATE_AA64, |
5203 | .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 4, .crm = 4, | |
b916c9c3 | 5204 | .access = PL0_RW, .type = ARM_CP_FPU | ARM_CP_SUPPRESS_TB_END, |
fe03d45f | 5205 | .readfn = aa64_fpsr_read, .writefn = aa64_fpsr_write }, |
b0d2b7d0 PM |
5206 | { .name = "DCZID_EL0", .state = ARM_CP_STATE_AA64, |
5207 | .opc0 = 3, .opc1 = 3, .opc2 = 7, .crn = 0, .crm = 0, | |
7a0e58fa | 5208 | .access = PL0_R, .type = ARM_CP_NO_RAW, |
aca3f40b PM |
5209 | .readfn = aa64_dczid_read }, |
5210 | { .name = "DC_ZVA", .state = ARM_CP_STATE_AA64, | |
5211 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 1, | |
5212 | .access = PL0_W, .type = ARM_CP_DC_ZVA, | |
5213 | #ifndef CONFIG_USER_ONLY | |
5214 | /* Avoid overhead of an access check that always passes in user-mode */ | |
5215 | .accessfn = aa64_zva_access, | |
5216 | #endif | |
5217 | }, | |
0eef9d98 PM |
5218 | { .name = "CURRENTEL", .state = ARM_CP_STATE_AA64, |
5219 | .opc0 = 3, .opc1 = 0, .opc2 = 2, .crn = 4, .crm = 2, | |
5220 | .access = PL1_R, .type = ARM_CP_CURRENTEL }, | |
8af35c37 PM |
5221 | /* Cache ops: all NOPs since we don't emulate caches */ |
5222 | { .name = "IC_IALLUIS", .state = ARM_CP_STATE_AA64, | |
5223 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 0, | |
38262d8a | 5224 | .access = PL1_W, .type = ARM_CP_NOP, |
2d3ce4c6 | 5225 | .accessfn = access_ticab }, |
8af35c37 PM |
5226 | { .name = "IC_IALLU", .state = ARM_CP_STATE_AA64, |
5227 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 0, | |
38262d8a | 5228 | .access = PL1_W, .type = ARM_CP_NOP, |
2d3ce4c6 | 5229 | .accessfn = access_tocu }, |
8af35c37 PM |
5230 | { .name = "IC_IVAU", .state = ARM_CP_STATE_AA64, |
5231 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 5, .opc2 = 1, | |
5232 | .access = PL0_W, .type = ARM_CP_NOP, | |
2d3ce4c6 | 5233 | .accessfn = access_tocu }, |
8af35c37 PM |
5234 | { .name = "DC_IVAC", .state = ARM_CP_STATE_AA64, |
5235 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 1, | |
1bed4d2e RH |
5236 | .access = PL1_W, .accessfn = aa64_cacheop_poc_access, |
5237 | .type = ARM_CP_NOP }, | |
8af35c37 PM |
5238 | { .name = "DC_ISW", .state = ARM_CP_STATE_AA64, |
5239 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2, | |
1803d271 | 5240 | .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, |
8af35c37 PM |
5241 | { .name = "DC_CVAC", .state = ARM_CP_STATE_AA64, |
5242 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 1, | |
5243 | .access = PL0_W, .type = ARM_CP_NOP, | |
1bed4d2e | 5244 | .accessfn = aa64_cacheop_poc_access }, |
8af35c37 PM |
5245 | { .name = "DC_CSW", .state = ARM_CP_STATE_AA64, |
5246 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2, | |
1803d271 | 5247 | .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, |
8af35c37 PM |
5248 | { .name = "DC_CVAU", .state = ARM_CP_STATE_AA64, |
5249 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 11, .opc2 = 1, | |
5250 | .access = PL0_W, .type = ARM_CP_NOP, | |
2d3ce4c6 | 5251 | .accessfn = access_tocu }, |
8af35c37 PM |
5252 | { .name = "DC_CIVAC", .state = ARM_CP_STATE_AA64, |
5253 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 1, | |
5254 | .access = PL0_W, .type = ARM_CP_NOP, | |
1bed4d2e | 5255 | .accessfn = aa64_cacheop_poc_access }, |
8af35c37 PM |
5256 | { .name = "DC_CISW", .state = ARM_CP_STATE_AA64, |
5257 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2, | |
1803d271 | 5258 | .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, |
168aa23b PM |
5259 | /* TLBI operations */ |
5260 | { .name = "TLBI_VMALLE1IS", .state = ARM_CP_STATE_AA64, | |
6ab9f499 | 5261 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 0, |
0f66d223 | 5262 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5263 | .writefn = tlbi_aa64_vmalle1is_write }, |
168aa23b | 5264 | { .name = "TLBI_VAE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5265 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 1, |
0f66d223 | 5266 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5267 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5268 | { .name = "TLBI_ASIDE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5269 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 2, |
0f66d223 | 5270 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5271 | .writefn = tlbi_aa64_vmalle1is_write }, |
168aa23b | 5272 | { .name = "TLBI_VAAE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5273 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 3, |
0f66d223 | 5274 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5275 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5276 | { .name = "TLBI_VALE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5277 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5, |
0f66d223 | 5278 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5279 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5280 | { .name = "TLBI_VAALE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5281 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 7, |
0f66d223 | 5282 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5283 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5284 | { .name = "TLBI_VMALLE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5285 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 0, |
30881b73 | 5286 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5287 | .writefn = tlbi_aa64_vmalle1_write }, |
168aa23b | 5288 | { .name = "TLBI_VAE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5289 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 1, |
30881b73 | 5290 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5291 | .writefn = tlbi_aa64_vae1_write }, |
168aa23b | 5292 | { .name = "TLBI_ASIDE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5293 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 2, |
30881b73 | 5294 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5295 | .writefn = tlbi_aa64_vmalle1_write }, |
168aa23b | 5296 | { .name = "TLBI_VAAE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5297 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 3, |
30881b73 | 5298 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5299 | .writefn = tlbi_aa64_vae1_write }, |
168aa23b | 5300 | { .name = "TLBI_VALE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5301 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 5, |
30881b73 | 5302 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5303 | .writefn = tlbi_aa64_vae1_write }, |
168aa23b | 5304 | { .name = "TLBI_VAALE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5305 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 7, |
30881b73 | 5306 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5307 | .writefn = tlbi_aa64_vae1_write }, |
cea66e91 PM |
5308 | { .name = "TLBI_IPAS2E1IS", .state = ARM_CP_STATE_AA64, |
5309 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 1, | |
575a94af RH |
5310 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5311 | .writefn = tlbi_aa64_ipas2e1is_write }, | |
cea66e91 PM |
5312 | { .name = "TLBI_IPAS2LE1IS", .state = ARM_CP_STATE_AA64, |
5313 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 5, | |
575a94af RH |
5314 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5315 | .writefn = tlbi_aa64_ipas2e1is_write }, | |
83ddf975 PM |
5316 | { .name = "TLBI_ALLE1IS", .state = ARM_CP_STATE_AA64, |
5317 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 4, | |
5318 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
fd3ed969 | 5319 | .writefn = tlbi_aa64_alle1is_write }, |
43efaa33 PM |
5320 | { .name = "TLBI_VMALLS12E1IS", .state = ARM_CP_STATE_AA64, |
5321 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 6, | |
5322 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
5323 | .writefn = tlbi_aa64_alle1is_write }, | |
cea66e91 PM |
5324 | { .name = "TLBI_IPAS2E1", .state = ARM_CP_STATE_AA64, |
5325 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 1, | |
575a94af RH |
5326 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5327 | .writefn = tlbi_aa64_ipas2e1_write }, | |
cea66e91 PM |
5328 | { .name = "TLBI_IPAS2LE1", .state = ARM_CP_STATE_AA64, |
5329 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 5, | |
575a94af RH |
5330 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5331 | .writefn = tlbi_aa64_ipas2e1_write }, | |
83ddf975 PM |
5332 | { .name = "TLBI_ALLE1", .state = ARM_CP_STATE_AA64, |
5333 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 4, | |
5334 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
fd3ed969 | 5335 | .writefn = tlbi_aa64_alle1_write }, |
43efaa33 PM |
5336 | { .name = "TLBI_VMALLS12E1", .state = ARM_CP_STATE_AA64, |
5337 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 6, | |
5338 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
5339 | .writefn = tlbi_aa64_alle1is_write }, | |
19525524 PM |
5340 | #ifndef CONFIG_USER_ONLY |
5341 | /* 64 bit address translation operations */ | |
5342 | { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, | |
5343 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 0, | |
0710b2fa PM |
5344 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5345 | .writefn = ats_write64 }, | |
19525524 PM |
5346 | { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, |
5347 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 1, | |
0710b2fa PM |
5348 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5349 | .writefn = ats_write64 }, | |
19525524 PM |
5350 | { .name = "AT_S1E0R", .state = ARM_CP_STATE_AA64, |
5351 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 2, | |
0710b2fa PM |
5352 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5353 | .writefn = ats_write64 }, | |
19525524 PM |
5354 | { .name = "AT_S1E0W", .state = ARM_CP_STATE_AA64, |
5355 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 3, | |
0710b2fa PM |
5356 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5357 | .writefn = ats_write64 }, | |
2a47df95 | 5358 | { .name = "AT_S12E1R", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5359 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 4, |
0710b2fa PM |
5360 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5361 | .writefn = ats_write64 }, | |
2a47df95 | 5362 | { .name = "AT_S12E1W", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5363 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 5, |
0710b2fa PM |
5364 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5365 | .writefn = ats_write64 }, | |
2a47df95 | 5366 | { .name = "AT_S12E0R", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5367 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 6, |
0710b2fa PM |
5368 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5369 | .writefn = ats_write64 }, | |
2a47df95 | 5370 | { .name = "AT_S12E0W", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5371 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 7, |
0710b2fa PM |
5372 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5373 | .writefn = ats_write64 }, | |
2a47df95 PM |
5374 | /* AT S1E2* are elsewhere as they UNDEF from EL3 if EL2 is not present */ |
5375 | { .name = "AT_S1E3R", .state = ARM_CP_STATE_AA64, | |
5376 | .opc0 = 1, .opc1 = 6, .crn = 7, .crm = 8, .opc2 = 0, | |
0710b2fa PM |
5377 | .access = PL3_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5378 | .writefn = ats_write64 }, | |
2a47df95 PM |
5379 | { .name = "AT_S1E3W", .state = ARM_CP_STATE_AA64, |
5380 | .opc0 = 1, .opc1 = 6, .crn = 7, .crm = 8, .opc2 = 1, | |
0710b2fa PM |
5381 | .access = PL3_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5382 | .writefn = ats_write64 }, | |
c96fc9b5 EI |
5383 | { .name = "PAR_EL1", .state = ARM_CP_STATE_AA64, |
5384 | .type = ARM_CP_ALIAS, | |
5385 | .opc0 = 3, .opc1 = 0, .crn = 7, .crm = 4, .opc2 = 0, | |
5386 | .access = PL1_RW, .resetvalue = 0, | |
5387 | .fieldoffset = offsetof(CPUARMState, cp15.par_el[1]), | |
5388 | .writefn = par_write }, | |
19525524 | 5389 | #endif |
995939a6 | 5390 | /* TLB invalidate last level of translation table walk */ |
9449fdf6 | 5391 | { .name = "TLBIMVALIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5, |
0f66d223 | 5392 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
30881b73 | 5393 | .writefn = tlbimva_is_write }, |
9449fdf6 | 5394 | { .name = "TLBIMVAALIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 7, |
0f66d223 | 5395 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
fa439fc5 | 5396 | .writefn = tlbimvaa_is_write }, |
9449fdf6 | 5397 | { .name = "TLBIMVAL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 5, |
30881b73 RH |
5398 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
5399 | .writefn = tlbimva_write }, | |
9449fdf6 | 5400 | { .name = "TLBIMVAAL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 7, |
30881b73 RH |
5401 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
5402 | .writefn = tlbimvaa_write }, | |
541ef8c2 SS |
5403 | { .name = "TLBIMVALH", .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 5, |
5404 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5405 | .writefn = tlbimva_hyp_write }, | |
5406 | { .name = "TLBIMVALHIS", | |
5407 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 5, | |
5408 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5409 | .writefn = tlbimva_hyp_is_write }, | |
5410 | { .name = "TLBIIPAS2", | |
5411 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 1, | |
575a94af RH |
5412 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5413 | .writefn = tlbiipas2_hyp_write }, | |
541ef8c2 SS |
5414 | { .name = "TLBIIPAS2IS", |
5415 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 1, | |
575a94af RH |
5416 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5417 | .writefn = tlbiipas2is_hyp_write }, | |
541ef8c2 SS |
5418 | { .name = "TLBIIPAS2L", |
5419 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 5, | |
575a94af RH |
5420 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5421 | .writefn = tlbiipas2_hyp_write }, | |
541ef8c2 SS |
5422 | { .name = "TLBIIPAS2LIS", |
5423 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 5, | |
575a94af RH |
5424 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5425 | .writefn = tlbiipas2is_hyp_write }, | |
9449fdf6 PM |
5426 | /* 32 bit cache operations */ |
5427 | { .name = "ICIALLUIS", .cp = 15, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 0, | |
2d3ce4c6 | 5428 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_ticab }, |
9449fdf6 PM |
5429 | { .name = "BPIALLUIS", .cp = 15, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 6, |
5430 | .type = ARM_CP_NOP, .access = PL1_W }, | |
5431 | { .name = "ICIALLU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 0, | |
2d3ce4c6 | 5432 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tocu }, |
9449fdf6 | 5433 | { .name = "ICIMVAU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 1, |
2d3ce4c6 | 5434 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tocu }, |
9449fdf6 PM |
5435 | { .name = "BPIALL", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 6, |
5436 | .type = ARM_CP_NOP, .access = PL1_W }, | |
5437 | { .name = "BPIMVA", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 7, | |
5438 | .type = ARM_CP_NOP, .access = PL1_W }, | |
5439 | { .name = "DCIMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 1, | |
1bed4d2e | 5440 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = aa64_cacheop_poc_access }, |
9449fdf6 | 5441 | { .name = "DCISW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2, |
1803d271 | 5442 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, |
9449fdf6 | 5443 | { .name = "DCCMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 1, |
1bed4d2e | 5444 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = aa64_cacheop_poc_access }, |
9449fdf6 | 5445 | { .name = "DCCSW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2, |
1803d271 | 5446 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, |
9449fdf6 | 5447 | { .name = "DCCMVAU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 11, .opc2 = 1, |
2d3ce4c6 | 5448 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tocu }, |
9449fdf6 | 5449 | { .name = "DCCIMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 1, |
1bed4d2e | 5450 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = aa64_cacheop_poc_access }, |
9449fdf6 | 5451 | { .name = "DCCISW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2, |
1803d271 | 5452 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, |
9449fdf6 | 5453 | /* MMU Domain access control / MPU write buffer control */ |
0c17d68c | 5454 | { .name = "DACR", .cp = 15, .opc1 = 0, .crn = 3, .crm = 0, .opc2 = 0, |
84929218 | 5455 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
0c17d68c FA |
5456 | .writefn = dacr_write, .raw_writefn = raw_write, |
5457 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.dacr_s), | |
5458 | offsetoflow32(CPUARMState, cp15.dacr_ns) } }, | |
a0618a19 | 5459 | { .name = "ELR_EL1", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5460 | .type = ARM_CP_ALIAS, |
a0618a19 | 5461 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 0, .opc2 = 1, |
6947f059 EI |
5462 | .access = PL1_RW, |
5463 | .fieldoffset = offsetof(CPUARMState, elr_el[1]) }, | |
a65f1de9 | 5464 | { .name = "SPSR_EL1", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5465 | .type = ARM_CP_ALIAS, |
a65f1de9 | 5466 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 0, .opc2 = 0, |
99a99c1f SB |
5467 | .access = PL1_RW, |
5468 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_SVC]) }, | |
9b37a28c FR |
5469 | /* |
5470 | * We rely on the access checks not allowing the guest to write to the | |
f502cfc2 PM |
5471 | * state field when SPSel indicates that it's being used as the stack |
5472 | * pointer. | |
5473 | */ | |
5474 | { .name = "SP_EL0", .state = ARM_CP_STATE_AA64, | |
5475 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 1, .opc2 = 0, | |
5476 | .access = PL1_RW, .accessfn = sp_el0_access, | |
7a0e58fa | 5477 | .type = ARM_CP_ALIAS, |
f502cfc2 | 5478 | .fieldoffset = offsetof(CPUARMState, sp_el[0]) }, |
884b4dee GB |
5479 | { .name = "SP_EL1", .state = ARM_CP_STATE_AA64, |
5480 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 1, .opc2 = 0, | |
beeec926 | 5481 | .access = PL2_RW, .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_KEEP, |
884b4dee | 5482 | .fieldoffset = offsetof(CPUARMState, sp_el[1]) }, |
f502cfc2 PM |
5483 | { .name = "SPSel", .state = ARM_CP_STATE_AA64, |
5484 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 0, | |
7a0e58fa | 5485 | .type = ARM_CP_NO_RAW, |
f502cfc2 | 5486 | .access = PL1_RW, .readfn = spsel_read, .writefn = spsel_write }, |
03fbf20f PM |
5487 | { .name = "FPEXC32_EL2", .state = ARM_CP_STATE_AA64, |
5488 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 3, .opc2 = 0, | |
696ba377 RH |
5489 | .access = PL2_RW, |
5490 | .type = ARM_CP_ALIAS | ARM_CP_FPU | ARM_CP_EL3_NO_EL2_KEEP, | |
a4c88675 | 5491 | .fieldoffset = offsetof(CPUARMState, vfp.xregs[ARM_VFP_FPEXC]) }, |
6a43e0b6 PM |
5492 | { .name = "DACR32_EL2", .state = ARM_CP_STATE_AA64, |
5493 | .opc0 = 3, .opc1 = 4, .crn = 3, .crm = 0, .opc2 = 0, | |
696ba377 | 5494 | .access = PL2_RW, .resetvalue = 0, .type = ARM_CP_EL3_NO_EL2_KEEP, |
6a43e0b6 PM |
5495 | .writefn = dacr_write, .raw_writefn = raw_write, |
5496 | .fieldoffset = offsetof(CPUARMState, cp15.dacr32_el2) }, | |
5497 | { .name = "IFSR32_EL2", .state = ARM_CP_STATE_AA64, | |
5498 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 0, .opc2 = 1, | |
696ba377 | 5499 | .access = PL2_RW, .resetvalue = 0, .type = ARM_CP_EL3_NO_EL2_KEEP, |
6a43e0b6 PM |
5500 | .fieldoffset = offsetof(CPUARMState, cp15.ifsr32_el2) }, |
5501 | { .name = "SPSR_IRQ", .state = ARM_CP_STATE_AA64, | |
5502 | .type = ARM_CP_ALIAS, | |
5503 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 0, | |
5504 | .access = PL2_RW, | |
5505 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_IRQ]) }, | |
5506 | { .name = "SPSR_ABT", .state = ARM_CP_STATE_AA64, | |
5507 | .type = ARM_CP_ALIAS, | |
5508 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 1, | |
5509 | .access = PL2_RW, | |
5510 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_ABT]) }, | |
5511 | { .name = "SPSR_UND", .state = ARM_CP_STATE_AA64, | |
5512 | .type = ARM_CP_ALIAS, | |
5513 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 2, | |
5514 | .access = PL2_RW, | |
5515 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_UND]) }, | |
5516 | { .name = "SPSR_FIQ", .state = ARM_CP_STATE_AA64, | |
5517 | .type = ARM_CP_ALIAS, | |
5518 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 3, | |
5519 | .access = PL2_RW, | |
5520 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_FIQ]) }, | |
a8d64e73 | 5521 | { .name = "MDCR_EL3", .state = ARM_CP_STATE_AA64, |
80d2b43b | 5522 | .type = ARM_CP_IO, |
a8d64e73 PM |
5523 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 3, .opc2 = 1, |
5524 | .resetvalue = 0, | |
80d2b43b PM |
5525 | .access = PL3_RW, |
5526 | .writefn = mdcr_el3_write, | |
5527 | .fieldoffset = offsetof(CPUARMState, cp15.mdcr_el3) }, | |
7f4fbfb5 | 5528 | { .name = "SDCR", .type = ARM_CP_ALIAS | ARM_CP_IO, |
a8d64e73 PM |
5529 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 3, .opc2 = 1, |
5530 | .access = PL1_RW, .accessfn = access_trap_aa32s_el1, | |
5531 | .writefn = sdcr_write, | |
5532 | .fieldoffset = offsetoflow32(CPUARMState, cp15.mdcr_el3) }, | |
b0d2b7d0 PM |
5533 | }; |
5534 | ||
d1fb4da2 | 5535 | static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask) |
f149e3e8 | 5536 | { |
2fc0cc0e | 5537 | ARMCPU *cpu = env_archcpu(env); |
d1fb4da2 RH |
5538 | |
5539 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
5540 | valid_mask |= MAKE_64BIT_MASK(0, 34); /* ARMv8.0 */ | |
5541 | } else { | |
5542 | valid_mask |= MAKE_64BIT_MASK(0, 28); /* ARMv7VE */ | |
5543 | } | |
f149e3e8 EI |
5544 | |
5545 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
5546 | valid_mask &= ~HCR_HCD; | |
77077a83 | 5547 | } else if (cpu->psci_conduit != QEMU_PSCI_CONDUIT_SMC) { |
9b37a28c FR |
5548 | /* |
5549 | * Architecturally HCR.TSC is RES0 if EL3 is not implemented. | |
77077a83 JK |
5550 | * However, if we're using the SMC PSCI conduit then QEMU is |
5551 | * effectively acting like EL3 firmware and so the guest at | |
5552 | * EL2 should retain the ability to prevent EL1 from being | |
5553 | * able to make SMC calls into the ersatz firmware, so in | |
5554 | * that case HCR.TSC should be read/write. | |
5555 | */ | |
f149e3e8 EI |
5556 | valid_mask &= ~HCR_TSC; |
5557 | } | |
d1fb4da2 RH |
5558 | |
5559 | if (arm_feature(env, ARM_FEATURE_AARCH64)) { | |
5560 | if (cpu_isar_feature(aa64_vh, cpu)) { | |
5561 | valid_mask |= HCR_E2H; | |
5562 | } | |
da3d8b13 RH |
5563 | if (cpu_isar_feature(aa64_ras, cpu)) { |
5564 | valid_mask |= HCR_TERR | HCR_TEA; | |
5565 | } | |
d1fb4da2 RH |
5566 | if (cpu_isar_feature(aa64_lor, cpu)) { |
5567 | valid_mask |= HCR_TLOR; | |
5568 | } | |
5569 | if (cpu_isar_feature(aa64_pauth, cpu)) { | |
5570 | valid_mask |= HCR_API | HCR_APK; | |
5571 | } | |
8ddb300b RH |
5572 | if (cpu_isar_feature(aa64_mte, cpu)) { |
5573 | valid_mask |= HCR_ATA | HCR_DCT | HCR_TID5; | |
5574 | } | |
7cb1e618 RH |
5575 | if (cpu_isar_feature(aa64_scxtnum, cpu)) { |
5576 | valid_mask |= HCR_ENSCXT; | |
5577 | } | |
8c7e17ef PM |
5578 | if (cpu_isar_feature(aa64_fwb, cpu)) { |
5579 | valid_mask |= HCR_FWB; | |
5580 | } | |
ef682cdb | 5581 | } |
f149e3e8 | 5582 | |
d2fd9313 PM |
5583 | if (cpu_isar_feature(any_evt, cpu)) { |
5584 | valid_mask |= HCR_TTLBIS | HCR_TTLBOS | HCR_TICAB | HCR_TOCU | HCR_TID4; | |
5585 | } else if (cpu_isar_feature(any_half_evt, cpu)) { | |
5586 | valid_mask |= HCR_TICAB | HCR_TOCU | HCR_TID4; | |
5587 | } | |
5588 | ||
f149e3e8 EI |
5589 | /* Clear RES0 bits. */ |
5590 | value &= valid_mask; | |
5591 | ||
8ddb300b RH |
5592 | /* |
5593 | * These bits change the MMU setup: | |
f149e3e8 EI |
5594 | * HCR_VM enables stage 2 translation |
5595 | * HCR_PTW forbids certain page-table setups | |
8ddb300b RH |
5596 | * HCR_DC disables stage1 and enables stage2 translation |
5597 | * HCR_DCT enables tagging on (disabled) stage1 translation | |
8c7e17ef | 5598 | * HCR_FWB changes the interpretation of stage2 descriptor bits |
f149e3e8 | 5599 | */ |
8c7e17ef PM |
5600 | if ((env->cp15.hcr_el2 ^ value) & |
5601 | (HCR_VM | HCR_PTW | HCR_DC | HCR_DCT | HCR_FWB)) { | |
d10eb08f | 5602 | tlb_flush(CPU(cpu)); |
f149e3e8 | 5603 | } |
ce4afed8 | 5604 | env->cp15.hcr_el2 = value; |
89430fc6 PM |
5605 | |
5606 | /* | |
5607 | * Updates to VI and VF require us to update the status of | |
5608 | * virtual interrupts, which are the logical OR of these bits | |
5609 | * and the state of the input lines from the GIC. (This requires | |
5610 | * that we have the iothread lock, which is done by marking the | |
5611 | * reginfo structs as ARM_CP_IO.) | |
5612 | * Note that if a write to HCR pends a VIRQ or VFIQ it is never | |
5613 | * possible for it to be taken immediately, because VIRQ and | |
5614 | * VFIQ are masked unless running at EL0 or EL1, and HCR | |
5615 | * can only be written at EL2. | |
5616 | */ | |
5617 | g_assert(qemu_mutex_iothread_locked()); | |
5618 | arm_cpu_update_virq(cpu); | |
5619 | arm_cpu_update_vfiq(cpu); | |
3c29632f | 5620 | arm_cpu_update_vserr(cpu); |
ce4afed8 PM |
5621 | } |
5622 | ||
d1fb4da2 RH |
5623 | static void hcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
5624 | { | |
5625 | do_hcr_write(env, value, 0); | |
5626 | } | |
5627 | ||
ce4afed8 PM |
5628 | static void hcr_writehigh(CPUARMState *env, const ARMCPRegInfo *ri, |
5629 | uint64_t value) | |
5630 | { | |
5631 | /* Handle HCR2 write, i.e. write to high half of HCR_EL2 */ | |
5632 | value = deposit64(env->cp15.hcr_el2, 32, 32, value); | |
d1fb4da2 | 5633 | do_hcr_write(env, value, MAKE_64BIT_MASK(0, 32)); |
ce4afed8 PM |
5634 | } |
5635 | ||
5636 | static void hcr_writelow(CPUARMState *env, const ARMCPRegInfo *ri, | |
5637 | uint64_t value) | |
5638 | { | |
5639 | /* Handle HCR write, i.e. write to low half of HCR_EL2 */ | |
5640 | value = deposit64(env->cp15.hcr_el2, 0, 32, value); | |
d1fb4da2 | 5641 | do_hcr_write(env, value, MAKE_64BIT_MASK(32, 32)); |
f149e3e8 EI |
5642 | } |
5643 | ||
f7778444 | 5644 | /* |
b74c0443 | 5645 | * Return the effective value of HCR_EL2, at the given security state. |
f7778444 RH |
5646 | * Bits that are not included here: |
5647 | * RW (read from SCR_EL3.RW as needed) | |
5648 | */ | |
b74c0443 | 5649 | uint64_t arm_hcr_el2_eff_secstate(CPUARMState *env, bool secure) |
f7778444 RH |
5650 | { |
5651 | uint64_t ret = env->cp15.hcr_el2; | |
5652 | ||
b74c0443 | 5653 | if (!arm_is_el2_enabled_secstate(env, secure)) { |
f7778444 RH |
5654 | /* |
5655 | * "This register has no effect if EL2 is not enabled in the | |
5656 | * current Security state". This is ARMv8.4-SecEL2 speak for | |
5657 | * !(SCR_EL3.NS==1 || SCR_EL3.EEL2==1). | |
5658 | * | |
5659 | * Prior to that, the language was "In an implementation that | |
5660 | * includes EL3, when the value of SCR_EL3.NS is 0 the PE behaves | |
5661 | * as if this field is 0 for all purposes other than a direct | |
5662 | * read or write access of HCR_EL2". With lots of enumeration | |
5663 | * on a per-field basis. In current QEMU, this is condition | |
5664 | * is arm_is_secure_below_el3. | |
5665 | * | |
5666 | * Since the v8.4 language applies to the entire register, and | |
5667 | * appears to be backward compatible, use that. | |
5668 | */ | |
4990e1d3 RH |
5669 | return 0; |
5670 | } | |
5671 | ||
5672 | /* | |
5673 | * For a cpu that supports both aarch64 and aarch32, we can set bits | |
5674 | * in HCR_EL2 (e.g. via EL3) that are RES0 when we enter EL2 as aa32. | |
5675 | * Ignore all of the bits in HCR+HCR2 that are not valid for aarch32. | |
5676 | */ | |
5677 | if (!arm_el_is_aa64(env, 2)) { | |
5678 | uint64_t aa32_valid; | |
5679 | ||
5680 | /* | |
5681 | * These bits are up-to-date as of ARMv8.6. | |
5682 | * For HCR, it's easiest to list just the 2 bits that are invalid. | |
5683 | * For HCR2, list those that are valid. | |
5684 | */ | |
5685 | aa32_valid = MAKE_64BIT_MASK(0, 32) & ~(HCR_RW | HCR_TDZ); | |
5686 | aa32_valid |= (HCR_CD | HCR_ID | HCR_TERR | HCR_TEA | HCR_MIOCNCE | | |
5687 | HCR_TID4 | HCR_TICAB | HCR_TOCU | HCR_TTLBIS); | |
5688 | ret &= aa32_valid; | |
5689 | } | |
5690 | ||
5691 | if (ret & HCR_TGE) { | |
5692 | /* These bits are up-to-date as of ARMv8.6. */ | |
f7778444 RH |
5693 | if (ret & HCR_E2H) { |
5694 | ret &= ~(HCR_VM | HCR_FMO | HCR_IMO | HCR_AMO | | |
5695 | HCR_BSU_MASK | HCR_DC | HCR_TWI | HCR_TWE | | |
5696 | HCR_TID0 | HCR_TID2 | HCR_TPCP | HCR_TPU | | |
4990e1d3 RH |
5697 | HCR_TDZ | HCR_CD | HCR_ID | HCR_MIOCNCE | |
5698 | HCR_TID4 | HCR_TICAB | HCR_TOCU | HCR_ENSCXT | | |
5699 | HCR_TTLBIS | HCR_TTLBOS | HCR_TID5); | |
f7778444 RH |
5700 | } else { |
5701 | ret |= HCR_FMO | HCR_IMO | HCR_AMO; | |
5702 | } | |
5703 | ret &= ~(HCR_SWIO | HCR_PTW | HCR_VF | HCR_VI | HCR_VSE | | |
5704 | HCR_FB | HCR_TID1 | HCR_TID3 | HCR_TSC | HCR_TACR | | |
5705 | HCR_TSW | HCR_TTLB | HCR_TVM | HCR_HCD | HCR_TRVM | | |
5706 | HCR_TLOR); | |
5707 | } | |
5708 | ||
5709 | return ret; | |
5710 | } | |
5711 | ||
b74c0443 RH |
5712 | uint64_t arm_hcr_el2_eff(CPUARMState *env) |
5713 | { | |
5714 | return arm_hcr_el2_eff_secstate(env, arm_is_secure_below_el3(env)); | |
5715 | } | |
5716 | ||
19668718 RH |
5717 | /* |
5718 | * Corresponds to ARM pseudocode function ELIsInHost(). | |
5719 | */ | |
5720 | bool el_is_in_host(CPUARMState *env, int el) | |
5721 | { | |
5722 | uint64_t mask; | |
5723 | ||
5724 | /* | |
5725 | * Since we only care about E2H and TGE, we can skip arm_hcr_el2_eff(). | |
5726 | * Perform the simplest bit tests first, and validate EL2 afterward. | |
5727 | */ | |
5728 | if (el & 1) { | |
5729 | return false; /* EL1 or EL3 */ | |
5730 | } | |
5731 | ||
5732 | /* | |
5733 | * Note that hcr_write() checks isar_feature_aa64_vh(), | |
5734 | * aka HaveVirtHostExt(), in allowing HCR_E2H to be set. | |
5735 | */ | |
5736 | mask = el ? HCR_E2H : HCR_E2H | HCR_TGE; | |
5737 | if ((env->cp15.hcr_el2 & mask) != mask) { | |
5738 | return false; | |
5739 | } | |
5740 | ||
5741 | /* TGE and/or E2H set: double check those bits are currently legal. */ | |
5742 | return arm_is_el2_enabled(env) && arm_el_is_aa64(env, 2); | |
5743 | } | |
5744 | ||
5814d587 RH |
5745 | static void hcrx_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5746 | uint64_t value) | |
5747 | { | |
5748 | uint64_t valid_mask = 0; | |
5749 | ||
5750 | /* No features adding bits to HCRX are implemented. */ | |
5751 | ||
5752 | /* Clear RES0 bits. */ | |
5753 | env->cp15.hcrx_el2 = value & valid_mask; | |
5754 | } | |
5755 | ||
5756 | static CPAccessResult access_hxen(CPUARMState *env, const ARMCPRegInfo *ri, | |
5757 | bool isread) | |
5758 | { | |
5759 | if (arm_current_el(env) < 3 | |
5760 | && arm_feature(env, ARM_FEATURE_EL3) | |
5761 | && !(env->cp15.scr_el3 & SCR_HXEN)) { | |
5762 | return CP_ACCESS_TRAP_EL3; | |
5763 | } | |
5764 | return CP_ACCESS_OK; | |
5765 | } | |
5766 | ||
5767 | static const ARMCPRegInfo hcrx_el2_reginfo = { | |
5768 | .name = "HCRX_EL2", .state = ARM_CP_STATE_AA64, | |
5769 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 2, | |
5770 | .access = PL2_RW, .writefn = hcrx_write, .accessfn = access_hxen, | |
5771 | .fieldoffset = offsetof(CPUARMState, cp15.hcrx_el2), | |
5772 | }; | |
5773 | ||
5774 | /* Return the effective value of HCRX_EL2. */ | |
5775 | uint64_t arm_hcrx_el2_eff(CPUARMState *env) | |
5776 | { | |
5777 | /* | |
5778 | * The bits in this register behave as 0 for all purposes other than | |
5779 | * direct reads of the register if: | |
5780 | * - EL2 is not enabled in the current security state, | |
5781 | * - SCR_EL3.HXEn is 0. | |
5782 | */ | |
5783 | if (!arm_is_el2_enabled(env) | |
5784 | || (arm_feature(env, ARM_FEATURE_EL3) | |
5785 | && !(env->cp15.scr_el3 & SCR_HXEN))) { | |
5786 | return 0; | |
5787 | } | |
5788 | return env->cp15.hcrx_el2; | |
5789 | } | |
5790 | ||
fc1120a7 PM |
5791 | static void cptr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5792 | uint64_t value) | |
5793 | { | |
5794 | /* | |
5795 | * For A-profile AArch32 EL3, if NSACR.CP10 | |
5796 | * is 0 then HCPTR.{TCP11,TCP10} ignore writes and read as 1. | |
5797 | */ | |
5798 | if (arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
5799 | !arm_is_secure(env) && !extract32(env->cp15.nsacr, 10, 1)) { | |
fab8ad39 RH |
5800 | uint64_t mask = R_HCPTR_TCP11_MASK | R_HCPTR_TCP10_MASK; |
5801 | value = (value & ~mask) | (env->cp15.cptr_el[2] & mask); | |
fc1120a7 PM |
5802 | } |
5803 | env->cp15.cptr_el[2] = value; | |
5804 | } | |
5805 | ||
5806 | static uint64_t cptr_el2_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
5807 | { | |
5808 | /* | |
5809 | * For A-profile AArch32 EL3, if NSACR.CP10 | |
5810 | * is 0 then HCPTR.{TCP11,TCP10} ignore writes and read as 1. | |
5811 | */ | |
5812 | uint64_t value = env->cp15.cptr_el[2]; | |
5813 | ||
5814 | if (arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
5815 | !arm_is_secure(env) && !extract32(env->cp15.nsacr, 10, 1)) { | |
fab8ad39 | 5816 | value |= R_HCPTR_TCP11_MASK | R_HCPTR_TCP10_MASK; |
fc1120a7 PM |
5817 | } |
5818 | return value; | |
5819 | } | |
5820 | ||
4771cd01 | 5821 | static const ARMCPRegInfo el2_cp_reginfo[] = { |
f149e3e8 | 5822 | { .name = "HCR_EL2", .state = ARM_CP_STATE_AA64, |
89430fc6 | 5823 | .type = ARM_CP_IO, |
f149e3e8 EI |
5824 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0, |
5825 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.hcr_el2), | |
c624ea0f | 5826 | .writefn = hcr_write }, |
ce4afed8 | 5827 | { .name = "HCR", .state = ARM_CP_STATE_AA32, |
89430fc6 | 5828 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
ce4afed8 PM |
5829 | .cp = 15, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0, |
5830 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.hcr_el2), | |
c624ea0f | 5831 | .writefn = hcr_writelow }, |
831a2fca PM |
5832 | { .name = "HACR_EL2", .state = ARM_CP_STATE_BOTH, |
5833 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 7, | |
5834 | .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
3b685ba7 | 5835 | { .name = "ELR_EL2", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5836 | .type = ARM_CP_ALIAS, |
3b685ba7 EI |
5837 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 1, |
5838 | .access = PL2_RW, | |
5839 | .fieldoffset = offsetof(CPUARMState, elr_el[2]) }, | |
68e78e33 | 5840 | { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH, |
f2c30f42 EI |
5841 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0, |
5842 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) }, | |
cba517c3 | 5843 | { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH, |
63b60551 EI |
5844 | .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0, |
5845 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[2]) }, | |
cba517c3 PM |
5846 | { .name = "HIFAR", .state = ARM_CP_STATE_AA32, |
5847 | .type = ARM_CP_ALIAS, | |
5848 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 2, | |
5849 | .access = PL2_RW, | |
5850 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.far_el[2]) }, | |
3b685ba7 | 5851 | { .name = "SPSR_EL2", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5852 | .type = ARM_CP_ALIAS, |
3b685ba7 | 5853 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 0, |
99a99c1f SB |
5854 | .access = PL2_RW, |
5855 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_HYP]) }, | |
d79e0c06 | 5856 | { .name = "VBAR_EL2", .state = ARM_CP_STATE_BOTH, |
d42e3c26 EI |
5857 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 0, |
5858 | .access = PL2_RW, .writefn = vbar_write, | |
5859 | .fieldoffset = offsetof(CPUARMState, cp15.vbar_el[2]), | |
5860 | .resetvalue = 0 }, | |
884b4dee GB |
5861 | { .name = "SP_EL2", .state = ARM_CP_STATE_AA64, |
5862 | .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 1, .opc2 = 0, | |
7a0e58fa | 5863 | .access = PL3_RW, .type = ARM_CP_ALIAS, |
884b4dee | 5864 | .fieldoffset = offsetof(CPUARMState, sp_el[2]) }, |
c6f19164 GB |
5865 | { .name = "CPTR_EL2", .state = ARM_CP_STATE_BOTH, |
5866 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 2, | |
5867 | .access = PL2_RW, .accessfn = cptr_access, .resetvalue = 0, | |
fc1120a7 PM |
5868 | .fieldoffset = offsetof(CPUARMState, cp15.cptr_el[2]), |
5869 | .readfn = cptr_el2_read, .writefn = cptr_el2_write }, | |
95f949ac EI |
5870 | { .name = "MAIR_EL2", .state = ARM_CP_STATE_BOTH, |
5871 | .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 0, | |
5872 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.mair_el[2]), | |
5873 | .resetvalue = 0 }, | |
5874 | { .name = "HMAIR1", .state = ARM_CP_STATE_AA32, | |
b5ede85b | 5875 | .cp = 15, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1, |
95f949ac EI |
5876 | .access = PL2_RW, .type = ARM_CP_ALIAS, |
5877 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.mair_el[2]) }, | |
2179ef95 PM |
5878 | { .name = "AMAIR_EL2", .state = ARM_CP_STATE_BOTH, |
5879 | .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 0, | |
5880 | .access = PL2_RW, .type = ARM_CP_CONST, | |
5881 | .resetvalue = 0 }, | |
5882 | /* HAMAIR1 is mapped to AMAIR_EL2[63:32] */ | |
55b53c71 | 5883 | { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32, |
b5ede85b | 5884 | .cp = 15, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, |
2179ef95 PM |
5885 | .access = PL2_RW, .type = ARM_CP_CONST, |
5886 | .resetvalue = 0 }, | |
37cd6c24 PM |
5887 | { .name = "AFSR0_EL2", .state = ARM_CP_STATE_BOTH, |
5888 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 1, .opc2 = 0, | |
5889 | .access = PL2_RW, .type = ARM_CP_CONST, | |
5890 | .resetvalue = 0 }, | |
5891 | { .name = "AFSR1_EL2", .state = ARM_CP_STATE_BOTH, | |
5892 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 1, .opc2 = 1, | |
5893 | .access = PL2_RW, .type = ARM_CP_CONST, | |
5894 | .resetvalue = 0 }, | |
06ec4c8c EI |
5895 | { .name = "TCR_EL2", .state = ARM_CP_STATE_BOTH, |
5896 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 2, | |
d06dc933 | 5897 | .access = PL2_RW, .writefn = vmsa_tcr_el12_write, |
06ec4c8c | 5898 | .fieldoffset = offsetof(CPUARMState, cp15.tcr_el[2]) }, |
68e9c2fe EI |
5899 | { .name = "VTCR", .state = ARM_CP_STATE_AA32, |
5900 | .cp = 15, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2, | |
bf06c112 | 5901 | .type = ARM_CP_ALIAS, |
68e9c2fe | 5902 | .access = PL2_RW, .accessfn = access_el3_aa32ns, |
afbb181c | 5903 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vtcr_el2) }, |
68e9c2fe EI |
5904 | { .name = "VTCR_EL2", .state = ARM_CP_STATE_AA64, |
5905 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2, | |
bf06c112 | 5906 | .access = PL2_RW, |
988cc190 | 5907 | /* no .writefn needed as this can't cause an ASID change */ |
68e9c2fe | 5908 | .fieldoffset = offsetof(CPUARMState, cp15.vtcr_el2) }, |
b698e9cf EI |
5909 | { .name = "VTTBR", .state = ARM_CP_STATE_AA32, |
5910 | .cp = 15, .opc1 = 6, .crm = 2, | |
5911 | .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
5912 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
5913 | .fieldoffset = offsetof(CPUARMState, cp15.vttbr_el2), | |
5914 | .writefn = vttbr_write }, | |
5915 | { .name = "VTTBR_EL2", .state = ARM_CP_STATE_AA64, | |
5916 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 0, | |
5917 | .access = PL2_RW, .writefn = vttbr_write, | |
5918 | .fieldoffset = offsetof(CPUARMState, cp15.vttbr_el2) }, | |
b9cb5323 EI |
5919 | { .name = "SCTLR_EL2", .state = ARM_CP_STATE_BOTH, |
5920 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 0, | |
5921 | .access = PL2_RW, .raw_writefn = raw_write, .writefn = sctlr_write, | |
5922 | .fieldoffset = offsetof(CPUARMState, cp15.sctlr_el[2]) }, | |
ff05f37b EI |
5923 | { .name = "TPIDR_EL2", .state = ARM_CP_STATE_BOTH, |
5924 | .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 2, | |
5925 | .access = PL2_RW, .resetvalue = 0, | |
5926 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[2]) }, | |
a57633c0 EI |
5927 | { .name = "TTBR0_EL2", .state = ARM_CP_STATE_AA64, |
5928 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 0, | |
ed30da8e | 5929 | .access = PL2_RW, .resetvalue = 0, .writefn = vmsa_tcr_ttbr_el2_write, |
a57633c0 EI |
5930 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr0_el[2]) }, |
5931 | { .name = "HTTBR", .cp = 15, .opc1 = 4, .crm = 2, | |
5932 | .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
a57633c0 | 5933 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr0_el[2]) }, |
541ef8c2 SS |
5934 | { .name = "TLBIALLNSNH", |
5935 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 4, | |
5936 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5937 | .writefn = tlbiall_nsnh_write }, | |
5938 | { .name = "TLBIALLNSNHIS", | |
5939 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 4, | |
5940 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5941 | .writefn = tlbiall_nsnh_is_write }, | |
5942 | { .name = "TLBIALLH", .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 0, | |
5943 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5944 | .writefn = tlbiall_hyp_write }, | |
5945 | { .name = "TLBIALLHIS", .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 0, | |
5946 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5947 | .writefn = tlbiall_hyp_is_write }, | |
5948 | { .name = "TLBIMVAH", .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 1, | |
5949 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5950 | .writefn = tlbimva_hyp_write }, | |
5951 | { .name = "TLBIMVAHIS", .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 1, | |
5952 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5953 | .writefn = tlbimva_hyp_is_write }, | |
51da9014 EI |
5954 | { .name = "TLBI_ALLE2", .state = ARM_CP_STATE_AA64, |
5955 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 0, | |
696ba377 | 5956 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
fd3ed969 | 5957 | .writefn = tlbi_aa64_alle2_write }, |
8742d49d EI |
5958 | { .name = "TLBI_VAE2", .state = ARM_CP_STATE_AA64, |
5959 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 1, | |
696ba377 | 5960 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
fd3ed969 | 5961 | .writefn = tlbi_aa64_vae2_write }, |
2bfb9d75 PM |
5962 | { .name = "TLBI_VALE2", .state = ARM_CP_STATE_AA64, |
5963 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 5, | |
696ba377 | 5964 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
2bfb9d75 PM |
5965 | .writefn = tlbi_aa64_vae2_write }, |
5966 | { .name = "TLBI_ALLE2IS", .state = ARM_CP_STATE_AA64, | |
5967 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 0, | |
696ba377 | 5968 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
2bfb9d75 | 5969 | .writefn = tlbi_aa64_alle2is_write }, |
8742d49d EI |
5970 | { .name = "TLBI_VAE2IS", .state = ARM_CP_STATE_AA64, |
5971 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 1, | |
696ba377 | 5972 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
fd3ed969 | 5973 | .writefn = tlbi_aa64_vae2is_write }, |
2bfb9d75 PM |
5974 | { .name = "TLBI_VALE2IS", .state = ARM_CP_STATE_AA64, |
5975 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 5, | |
696ba377 | 5976 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
2bfb9d75 | 5977 | .writefn = tlbi_aa64_vae2is_write }, |
edac4d8a | 5978 | #ifndef CONFIG_USER_ONLY |
9b37a28c FR |
5979 | /* |
5980 | * Unlike the other EL2-related AT operations, these must | |
2a47df95 PM |
5981 | * UNDEF from EL3 if EL2 is not implemented, which is why we |
5982 | * define them here rather than with the rest of the AT ops. | |
5983 | */ | |
5984 | { .name = "AT_S1E2R", .state = ARM_CP_STATE_AA64, | |
5985 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 0, | |
5986 | .access = PL2_W, .accessfn = at_s1e2_access, | |
696ba377 RH |
5987 | .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC | ARM_CP_EL3_NO_EL2_UNDEF, |
5988 | .writefn = ats_write64 }, | |
2a47df95 PM |
5989 | { .name = "AT_S1E2W", .state = ARM_CP_STATE_AA64, |
5990 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1, | |
5991 | .access = PL2_W, .accessfn = at_s1e2_access, | |
696ba377 RH |
5992 | .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC | ARM_CP_EL3_NO_EL2_UNDEF, |
5993 | .writefn = ats_write64 }, | |
9b37a28c FR |
5994 | /* |
5995 | * The AArch32 ATS1H* operations are CONSTRAINED UNPREDICTABLE | |
14db7fe0 PM |
5996 | * if EL2 is not implemented; we choose to UNDEF. Behaviour at EL3 |
5997 | * with SCR.NS == 0 outside Monitor mode is UNPREDICTABLE; we choose | |
5998 | * to behave as if SCR.NS was 1. | |
5999 | */ | |
6000 | { .name = "ATS1HR", .cp = 15, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 0, | |
6001 | .access = PL2_W, | |
0710b2fa | 6002 | .writefn = ats1h_write, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC }, |
14db7fe0 PM |
6003 | { .name = "ATS1HW", .cp = 15, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1, |
6004 | .access = PL2_W, | |
0710b2fa | 6005 | .writefn = ats1h_write, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC }, |
0b6440af EI |
6006 | { .name = "CNTHCTL_EL2", .state = ARM_CP_STATE_BOTH, |
6007 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 1, .opc2 = 0, | |
9b37a28c FR |
6008 | /* |
6009 | * ARMv7 requires bit 0 and 1 to reset to 1. ARMv8 defines the | |
0b6440af EI |
6010 | * reset values as IMPDEF. We choose to reset to 3 to comply with |
6011 | * both ARMv7 and ARMv8. | |
6012 | */ | |
6013 | .access = PL2_RW, .resetvalue = 3, | |
6014 | .fieldoffset = offsetof(CPUARMState, cp15.cnthctl_el2) }, | |
edac4d8a EI |
6015 | { .name = "CNTVOFF_EL2", .state = ARM_CP_STATE_AA64, |
6016 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 0, .opc2 = 3, | |
6017 | .access = PL2_RW, .type = ARM_CP_IO, .resetvalue = 0, | |
6018 | .writefn = gt_cntvoff_write, | |
6019 | .fieldoffset = offsetof(CPUARMState, cp15.cntvoff_el2) }, | |
6020 | { .name = "CNTVOFF", .cp = 15, .opc1 = 4, .crm = 14, | |
6021 | .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_ALIAS | ARM_CP_IO, | |
6022 | .writefn = gt_cntvoff_write, | |
6023 | .fieldoffset = offsetof(CPUARMState, cp15.cntvoff_el2) }, | |
b0e66d95 EI |
6024 | { .name = "CNTHP_CVAL_EL2", .state = ARM_CP_STATE_AA64, |
6025 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 2, | |
6026 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].cval), | |
6027 | .type = ARM_CP_IO, .access = PL2_RW, | |
6028 | .writefn = gt_hyp_cval_write, .raw_writefn = raw_write }, | |
6029 | { .name = "CNTHP_CVAL", .cp = 15, .opc1 = 6, .crm = 14, | |
6030 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].cval), | |
6031 | .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_IO, | |
6032 | .writefn = gt_hyp_cval_write, .raw_writefn = raw_write }, | |
6033 | { .name = "CNTHP_TVAL_EL2", .state = ARM_CP_STATE_BOTH, | |
6034 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 0, | |
d44ec156 | 6035 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL2_RW, |
b0e66d95 EI |
6036 | .resetfn = gt_hyp_timer_reset, |
6037 | .readfn = gt_hyp_tval_read, .writefn = gt_hyp_tval_write }, | |
6038 | { .name = "CNTHP_CTL_EL2", .state = ARM_CP_STATE_BOTH, | |
6039 | .type = ARM_CP_IO, | |
6040 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 1, | |
6041 | .access = PL2_RW, | |
6042 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].ctl), | |
6043 | .resetvalue = 0, | |
6044 | .writefn = gt_hyp_ctl_write, .raw_writefn = raw_write }, | |
edac4d8a | 6045 | #endif |
59e05530 EI |
6046 | { .name = "HPFAR", .state = ARM_CP_STATE_AA32, |
6047 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 4, | |
6048 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
6049 | .fieldoffset = offsetof(CPUARMState, cp15.hpfar_el2) }, | |
6050 | { .name = "HPFAR_EL2", .state = ARM_CP_STATE_AA64, | |
6051 | .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 4, | |
6052 | .access = PL2_RW, | |
6053 | .fieldoffset = offsetof(CPUARMState, cp15.hpfar_el2) }, | |
2a5a9abd AF |
6054 | { .name = "HSTR_EL2", .state = ARM_CP_STATE_BOTH, |
6055 | .cp = 15, .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 3, | |
6056 | .access = PL2_RW, | |
6057 | .fieldoffset = offsetof(CPUARMState, cp15.hstr_el2) }, | |
3b685ba7 EI |
6058 | }; |
6059 | ||
ce4afed8 PM |
6060 | static const ARMCPRegInfo el2_v8_cp_reginfo[] = { |
6061 | { .name = "HCR2", .state = ARM_CP_STATE_AA32, | |
89430fc6 | 6062 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
ce4afed8 PM |
6063 | .cp = 15, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 4, |
6064 | .access = PL2_RW, | |
6065 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.hcr_el2), | |
6066 | .writefn = hcr_writehigh }, | |
ce4afed8 PM |
6067 | }; |
6068 | ||
e9152ee9 RDC |
6069 | static CPAccessResult sel2_access(CPUARMState *env, const ARMCPRegInfo *ri, |
6070 | bool isread) | |
6071 | { | |
6072 | if (arm_current_el(env) == 3 || arm_is_secure_below_el3(env)) { | |
6073 | return CP_ACCESS_OK; | |
6074 | } | |
6075 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
6076 | } | |
6077 | ||
6078 | static const ARMCPRegInfo el2_sec_cp_reginfo[] = { | |
6079 | { .name = "VSTTBR_EL2", .state = ARM_CP_STATE_AA64, | |
6080 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 0, | |
6081 | .access = PL2_RW, .accessfn = sel2_access, | |
6082 | .fieldoffset = offsetof(CPUARMState, cp15.vsttbr_el2) }, | |
6083 | { .name = "VSTCR_EL2", .state = ARM_CP_STATE_AA64, | |
6084 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 2, | |
6085 | .access = PL2_RW, .accessfn = sel2_access, | |
6086 | .fieldoffset = offsetof(CPUARMState, cp15.vstcr_el2) }, | |
e9152ee9 RDC |
6087 | }; |
6088 | ||
2f027fc5 PM |
6089 | static CPAccessResult nsacr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
6090 | bool isread) | |
6091 | { | |
9b37a28c FR |
6092 | /* |
6093 | * The NSACR is RW at EL3, and RO for NS EL1 and NS EL2. | |
926c1b97 | 6094 | * At Secure EL1 it traps to EL3 or EL2. |
2f027fc5 PM |
6095 | */ |
6096 | if (arm_current_el(env) == 3) { | |
6097 | return CP_ACCESS_OK; | |
6098 | } | |
6099 | if (arm_is_secure_below_el3(env)) { | |
926c1b97 RDC |
6100 | if (env->cp15.scr_el3 & SCR_EEL2) { |
6101 | return CP_ACCESS_TRAP_EL2; | |
6102 | } | |
2f027fc5 PM |
6103 | return CP_ACCESS_TRAP_EL3; |
6104 | } | |
6105 | /* Accesses from EL1 NS and EL2 NS are UNDEF for write but allow reads. */ | |
6106 | if (isread) { | |
6107 | return CP_ACCESS_OK; | |
6108 | } | |
6109 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
6110 | } | |
6111 | ||
60fb1a87 GB |
6112 | static const ARMCPRegInfo el3_cp_reginfo[] = { |
6113 | { .name = "SCR_EL3", .state = ARM_CP_STATE_AA64, | |
6114 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 1, .opc2 = 0, | |
6115 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.scr_el3), | |
10d0ef3e | 6116 | .resetfn = scr_reset, .writefn = scr_write }, |
f80741d1 | 6117 | { .name = "SCR", .type = ARM_CP_ALIAS | ARM_CP_NEWEL, |
60fb1a87 | 6118 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 0, |
efe4a274 PM |
6119 | .access = PL1_RW, .accessfn = access_trap_aa32s_el1, |
6120 | .fieldoffset = offsetoflow32(CPUARMState, cp15.scr_el3), | |
b061a82b | 6121 | .writefn = scr_write }, |
60fb1a87 GB |
6122 | { .name = "SDER32_EL3", .state = ARM_CP_STATE_AA64, |
6123 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 1, .opc2 = 1, | |
6124 | .access = PL3_RW, .resetvalue = 0, | |
6125 | .fieldoffset = offsetof(CPUARMState, cp15.sder) }, | |
6126 | { .name = "SDER", | |
6127 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 1, | |
6128 | .access = PL3_RW, .resetvalue = 0, | |
6129 | .fieldoffset = offsetoflow32(CPUARMState, cp15.sder) }, | |
60fb1a87 | 6130 | { .name = "MVBAR", .cp = 15, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, |
efe4a274 PM |
6131 | .access = PL1_RW, .accessfn = access_trap_aa32s_el1, |
6132 | .writefn = vbar_write, .resetvalue = 0, | |
60fb1a87 | 6133 | .fieldoffset = offsetof(CPUARMState, cp15.mvbar) }, |
7dd8c9af FA |
6134 | { .name = "TTBR0_EL3", .state = ARM_CP_STATE_AA64, |
6135 | .opc0 = 3, .opc1 = 6, .crn = 2, .crm = 0, .opc2 = 0, | |
f478847f | 6136 | .access = PL3_RW, .resetvalue = 0, |
7dd8c9af | 6137 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr0_el[3]) }, |
11f136ee FA |
6138 | { .name = "TCR_EL3", .state = ARM_CP_STATE_AA64, |
6139 | .opc0 = 3, .opc1 = 6, .crn = 2, .crm = 0, .opc2 = 2, | |
6459b94c | 6140 | .access = PL3_RW, |
cb4a0a34 PM |
6141 | /* no .writefn needed as this can't cause an ASID change */ |
6142 | .resetvalue = 0, | |
11f136ee | 6143 | .fieldoffset = offsetof(CPUARMState, cp15.tcr_el[3]) }, |
81547d66 | 6144 | { .name = "ELR_EL3", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 6145 | .type = ARM_CP_ALIAS, |
81547d66 EI |
6146 | .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 0, .opc2 = 1, |
6147 | .access = PL3_RW, | |
6148 | .fieldoffset = offsetof(CPUARMState, elr_el[3]) }, | |
f2c30f42 | 6149 | { .name = "ESR_EL3", .state = ARM_CP_STATE_AA64, |
f2c30f42 EI |
6150 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 2, .opc2 = 0, |
6151 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[3]) }, | |
63b60551 EI |
6152 | { .name = "FAR_EL3", .state = ARM_CP_STATE_AA64, |
6153 | .opc0 = 3, .opc1 = 6, .crn = 6, .crm = 0, .opc2 = 0, | |
6154 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[3]) }, | |
81547d66 | 6155 | { .name = "SPSR_EL3", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 6156 | .type = ARM_CP_ALIAS, |
81547d66 | 6157 | .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 0, .opc2 = 0, |
99a99c1f SB |
6158 | .access = PL3_RW, |
6159 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_MON]) }, | |
a1ba125c EI |
6160 | { .name = "VBAR_EL3", .state = ARM_CP_STATE_AA64, |
6161 | .opc0 = 3, .opc1 = 6, .crn = 12, .crm = 0, .opc2 = 0, | |
6162 | .access = PL3_RW, .writefn = vbar_write, | |
6163 | .fieldoffset = offsetof(CPUARMState, cp15.vbar_el[3]), | |
6164 | .resetvalue = 0 }, | |
c6f19164 GB |
6165 | { .name = "CPTR_EL3", .state = ARM_CP_STATE_AA64, |
6166 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 1, .opc2 = 2, | |
6167 | .access = PL3_RW, .accessfn = cptr_access, .resetvalue = 0, | |
6168 | .fieldoffset = offsetof(CPUARMState, cp15.cptr_el[3]) }, | |
4cfb8ad8 PM |
6169 | { .name = "TPIDR_EL3", .state = ARM_CP_STATE_AA64, |
6170 | .opc0 = 3, .opc1 = 6, .crn = 13, .crm = 0, .opc2 = 2, | |
6171 | .access = PL3_RW, .resetvalue = 0, | |
6172 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[3]) }, | |
2179ef95 PM |
6173 | { .name = "AMAIR_EL3", .state = ARM_CP_STATE_AA64, |
6174 | .opc0 = 3, .opc1 = 6, .crn = 10, .crm = 3, .opc2 = 0, | |
6175 | .access = PL3_RW, .type = ARM_CP_CONST, | |
6176 | .resetvalue = 0 }, | |
37cd6c24 PM |
6177 | { .name = "AFSR0_EL3", .state = ARM_CP_STATE_BOTH, |
6178 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 1, .opc2 = 0, | |
6179 | .access = PL3_RW, .type = ARM_CP_CONST, | |
6180 | .resetvalue = 0 }, | |
6181 | { .name = "AFSR1_EL3", .state = ARM_CP_STATE_BOTH, | |
6182 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 1, .opc2 = 1, | |
6183 | .access = PL3_RW, .type = ARM_CP_CONST, | |
6184 | .resetvalue = 0 }, | |
43efaa33 PM |
6185 | { .name = "TLBI_ALLE3IS", .state = ARM_CP_STATE_AA64, |
6186 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 3, .opc2 = 0, | |
6187 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6188 | .writefn = tlbi_aa64_alle3is_write }, | |
6189 | { .name = "TLBI_VAE3IS", .state = ARM_CP_STATE_AA64, | |
6190 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 3, .opc2 = 1, | |
6191 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6192 | .writefn = tlbi_aa64_vae3is_write }, | |
6193 | { .name = "TLBI_VALE3IS", .state = ARM_CP_STATE_AA64, | |
6194 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 3, .opc2 = 5, | |
6195 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6196 | .writefn = tlbi_aa64_vae3is_write }, | |
6197 | { .name = "TLBI_ALLE3", .state = ARM_CP_STATE_AA64, | |
6198 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 7, .opc2 = 0, | |
6199 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6200 | .writefn = tlbi_aa64_alle3_write }, | |
6201 | { .name = "TLBI_VAE3", .state = ARM_CP_STATE_AA64, | |
6202 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 7, .opc2 = 1, | |
6203 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6204 | .writefn = tlbi_aa64_vae3_write }, | |
6205 | { .name = "TLBI_VALE3", .state = ARM_CP_STATE_AA64, | |
6206 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 7, .opc2 = 5, | |
6207 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6208 | .writefn = tlbi_aa64_vae3_write }, | |
0f1a3b24 FA |
6209 | }; |
6210 | ||
e2cce18f RH |
6211 | #ifndef CONFIG_USER_ONLY |
6212 | /* Test if system register redirection is to occur in the current state. */ | |
6213 | static bool redirect_for_e2h(CPUARMState *env) | |
6214 | { | |
6215 | return arm_current_el(env) == 2 && (arm_hcr_el2_eff(env) & HCR_E2H); | |
6216 | } | |
6217 | ||
6218 | static uint64_t el2_e2h_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
6219 | { | |
6220 | CPReadFn *readfn; | |
6221 | ||
6222 | if (redirect_for_e2h(env)) { | |
6223 | /* Switch to the saved EL2 version of the register. */ | |
6224 | ri = ri->opaque; | |
6225 | readfn = ri->readfn; | |
6226 | } else { | |
6227 | readfn = ri->orig_readfn; | |
6228 | } | |
6229 | if (readfn == NULL) { | |
6230 | readfn = raw_read; | |
6231 | } | |
6232 | return readfn(env, ri); | |
6233 | } | |
6234 | ||
6235 | static void el2_e2h_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
6236 | uint64_t value) | |
6237 | { | |
6238 | CPWriteFn *writefn; | |
6239 | ||
6240 | if (redirect_for_e2h(env)) { | |
6241 | /* Switch to the saved EL2 version of the register. */ | |
6242 | ri = ri->opaque; | |
6243 | writefn = ri->writefn; | |
6244 | } else { | |
6245 | writefn = ri->orig_writefn; | |
6246 | } | |
6247 | if (writefn == NULL) { | |
6248 | writefn = raw_write; | |
6249 | } | |
6250 | writefn(env, ri, value); | |
6251 | } | |
6252 | ||
6253 | static void define_arm_vh_e2h_redirects_aliases(ARMCPU *cpu) | |
6254 | { | |
6255 | struct E2HAlias { | |
6256 | uint32_t src_key, dst_key, new_key; | |
6257 | const char *src_name, *dst_name, *new_name; | |
6258 | bool (*feature)(const ARMISARegisters *id); | |
6259 | }; | |
6260 | ||
6261 | #define K(op0, op1, crn, crm, op2) \ | |
6262 | ENCODE_AA64_CP_REG(CP_REG_ARM64_SYSREG_CP, crn, crm, op0, op1, op2) | |
6263 | ||
6264 | static const struct E2HAlias aliases[] = { | |
6265 | { K(3, 0, 1, 0, 0), K(3, 4, 1, 0, 0), K(3, 5, 1, 0, 0), | |
6266 | "SCTLR", "SCTLR_EL2", "SCTLR_EL12" }, | |
6267 | { K(3, 0, 1, 0, 2), K(3, 4, 1, 1, 2), K(3, 5, 1, 0, 2), | |
6268 | "CPACR", "CPTR_EL2", "CPACR_EL12" }, | |
6269 | { K(3, 0, 2, 0, 0), K(3, 4, 2, 0, 0), K(3, 5, 2, 0, 0), | |
6270 | "TTBR0_EL1", "TTBR0_EL2", "TTBR0_EL12" }, | |
6271 | { K(3, 0, 2, 0, 1), K(3, 4, 2, 0, 1), K(3, 5, 2, 0, 1), | |
6272 | "TTBR1_EL1", "TTBR1_EL2", "TTBR1_EL12" }, | |
6273 | { K(3, 0, 2, 0, 2), K(3, 4, 2, 0, 2), K(3, 5, 2, 0, 2), | |
6274 | "TCR_EL1", "TCR_EL2", "TCR_EL12" }, | |
6275 | { K(3, 0, 4, 0, 0), K(3, 4, 4, 0, 0), K(3, 5, 4, 0, 0), | |
6276 | "SPSR_EL1", "SPSR_EL2", "SPSR_EL12" }, | |
6277 | { K(3, 0, 4, 0, 1), K(3, 4, 4, 0, 1), K(3, 5, 4, 0, 1), | |
6278 | "ELR_EL1", "ELR_EL2", "ELR_EL12" }, | |
6279 | { K(3, 0, 5, 1, 0), K(3, 4, 5, 1, 0), K(3, 5, 5, 1, 0), | |
6280 | "AFSR0_EL1", "AFSR0_EL2", "AFSR0_EL12" }, | |
6281 | { K(3, 0, 5, 1, 1), K(3, 4, 5, 1, 1), K(3, 5, 5, 1, 1), | |
6282 | "AFSR1_EL1", "AFSR1_EL2", "AFSR1_EL12" }, | |
6283 | { K(3, 0, 5, 2, 0), K(3, 4, 5, 2, 0), K(3, 5, 5, 2, 0), | |
6284 | "ESR_EL1", "ESR_EL2", "ESR_EL12" }, | |
6285 | { K(3, 0, 6, 0, 0), K(3, 4, 6, 0, 0), K(3, 5, 6, 0, 0), | |
6286 | "FAR_EL1", "FAR_EL2", "FAR_EL12" }, | |
6287 | { K(3, 0, 10, 2, 0), K(3, 4, 10, 2, 0), K(3, 5, 10, 2, 0), | |
6288 | "MAIR_EL1", "MAIR_EL2", "MAIR_EL12" }, | |
6289 | { K(3, 0, 10, 3, 0), K(3, 4, 10, 3, 0), K(3, 5, 10, 3, 0), | |
6290 | "AMAIR0", "AMAIR_EL2", "AMAIR_EL12" }, | |
6291 | { K(3, 0, 12, 0, 0), K(3, 4, 12, 0, 0), K(3, 5, 12, 0, 0), | |
6292 | "VBAR", "VBAR_EL2", "VBAR_EL12" }, | |
6293 | { K(3, 0, 13, 0, 1), K(3, 4, 13, 0, 1), K(3, 5, 13, 0, 1), | |
6294 | "CONTEXTIDR_EL1", "CONTEXTIDR_EL2", "CONTEXTIDR_EL12" }, | |
6295 | { K(3, 0, 14, 1, 0), K(3, 4, 14, 1, 0), K(3, 5, 14, 1, 0), | |
6296 | "CNTKCTL", "CNTHCTL_EL2", "CNTKCTL_EL12" }, | |
6297 | ||
6298 | /* | |
6299 | * Note that redirection of ZCR is mentioned in the description | |
6300 | * of ZCR_EL2, and aliasing in the description of ZCR_EL1, but | |
6301 | * not in the summary table. | |
6302 | */ | |
6303 | { K(3, 0, 1, 2, 0), K(3, 4, 1, 2, 0), K(3, 5, 1, 2, 0), | |
6304 | "ZCR_EL1", "ZCR_EL2", "ZCR_EL12", isar_feature_aa64_sve }, | |
de561988 RH |
6305 | { K(3, 0, 1, 2, 6), K(3, 4, 1, 2, 6), K(3, 5, 1, 2, 6), |
6306 | "SMCR_EL1", "SMCR_EL2", "SMCR_EL12", isar_feature_aa64_sme }, | |
e2cce18f | 6307 | |
4b779ceb RH |
6308 | { K(3, 0, 5, 6, 0), K(3, 4, 5, 6, 0), K(3, 5, 5, 6, 0), |
6309 | "TFSR_EL1", "TFSR_EL2", "TFSR_EL12", isar_feature_aa64_mte }, | |
6310 | ||
7cb1e618 RH |
6311 | { K(3, 0, 13, 0, 7), K(3, 4, 13, 0, 7), K(3, 5, 13, 0, 7), |
6312 | "SCXTNUM_EL1", "SCXTNUM_EL2", "SCXTNUM_EL12", | |
6313 | isar_feature_aa64_scxtnum }, | |
6314 | ||
e2cce18f RH |
6315 | /* TODO: ARMv8.2-SPE -- PMSCR_EL2 */ |
6316 | /* TODO: ARMv8.4-Trace -- TRFCR_EL2 */ | |
6317 | }; | |
6318 | #undef K | |
6319 | ||
6320 | size_t i; | |
6321 | ||
6322 | for (i = 0; i < ARRAY_SIZE(aliases); i++) { | |
6323 | const struct E2HAlias *a = &aliases[i]; | |
9da35a40 | 6324 | ARMCPRegInfo *src_reg, *dst_reg, *new_reg; |
9da35a40 | 6325 | bool ok; |
e2cce18f RH |
6326 | |
6327 | if (a->feature && !a->feature(&cpu->isar)) { | |
6328 | continue; | |
6329 | } | |
6330 | ||
5860362d RH |
6331 | src_reg = g_hash_table_lookup(cpu->cp_regs, |
6332 | (gpointer)(uintptr_t)a->src_key); | |
6333 | dst_reg = g_hash_table_lookup(cpu->cp_regs, | |
6334 | (gpointer)(uintptr_t)a->dst_key); | |
e2cce18f RH |
6335 | g_assert(src_reg != NULL); |
6336 | g_assert(dst_reg != NULL); | |
6337 | ||
6338 | /* Cross-compare names to detect typos in the keys. */ | |
6339 | g_assert(strcmp(src_reg->name, a->src_name) == 0); | |
6340 | g_assert(strcmp(dst_reg->name, a->dst_name) == 0); | |
6341 | ||
6342 | /* None of the core system registers use opaque; we will. */ | |
6343 | g_assert(src_reg->opaque == NULL); | |
6344 | ||
6345 | /* Create alias before redirection so we dup the right data. */ | |
9da35a40 | 6346 | new_reg = g_memdup(src_reg, sizeof(ARMCPRegInfo)); |
9da35a40 RH |
6347 | |
6348 | new_reg->name = a->new_name; | |
6349 | new_reg->type |= ARM_CP_ALIAS; | |
6350 | /* Remove PL1/PL0 access, leaving PL2/PL3 R/W in place. */ | |
6351 | new_reg->access &= PL2_RW | PL3_RW; | |
6352 | ||
5860362d RH |
6353 | ok = g_hash_table_insert(cpu->cp_regs, |
6354 | (gpointer)(uintptr_t)a->new_key, new_reg); | |
9da35a40 | 6355 | g_assert(ok); |
e2cce18f RH |
6356 | |
6357 | src_reg->opaque = dst_reg; | |
6358 | src_reg->orig_readfn = src_reg->readfn ?: raw_read; | |
6359 | src_reg->orig_writefn = src_reg->writefn ?: raw_write; | |
6360 | if (!src_reg->raw_readfn) { | |
6361 | src_reg->raw_readfn = raw_read; | |
6362 | } | |
6363 | if (!src_reg->raw_writefn) { | |
6364 | src_reg->raw_writefn = raw_write; | |
6365 | } | |
6366 | src_reg->readfn = el2_e2h_read; | |
6367 | src_reg->writefn = el2_e2h_write; | |
6368 | } | |
6369 | } | |
6370 | #endif | |
6371 | ||
3f208fd7 PM |
6372 | static CPAccessResult ctr_el0_access(CPUARMState *env, const ARMCPRegInfo *ri, |
6373 | bool isread) | |
7da845b0 | 6374 | { |
97475a89 RH |
6375 | int cur_el = arm_current_el(env); |
6376 | ||
6377 | if (cur_el < 2) { | |
6378 | uint64_t hcr = arm_hcr_el2_eff(env); | |
6379 | ||
6380 | if (cur_el == 0) { | |
6381 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
6382 | if (!(env->cp15.sctlr_el[2] & SCTLR_UCT)) { | |
6383 | return CP_ACCESS_TRAP_EL2; | |
6384 | } | |
6385 | } else { | |
6386 | if (!(env->cp15.sctlr_el[1] & SCTLR_UCT)) { | |
6387 | return CP_ACCESS_TRAP; | |
6388 | } | |
6389 | if (hcr & HCR_TID2) { | |
6390 | return CP_ACCESS_TRAP_EL2; | |
6391 | } | |
6392 | } | |
6393 | } else if (hcr & HCR_TID2) { | |
6394 | return CP_ACCESS_TRAP_EL2; | |
6395 | } | |
7da845b0 | 6396 | } |
630fcd4d MZ |
6397 | |
6398 | if (arm_current_el(env) < 2 && arm_hcr_el2_eff(env) & HCR_TID2) { | |
6399 | return CP_ACCESS_TRAP_EL2; | |
6400 | } | |
6401 | ||
7da845b0 PM |
6402 | return CP_ACCESS_OK; |
6403 | } | |
6404 | ||
58e93b48 RH |
6405 | /* |
6406 | * Check for traps to RAS registers, which are controlled | |
6407 | * by HCR_EL2.TERR and SCR_EL3.TERR. | |
6408 | */ | |
6409 | static CPAccessResult access_terr(CPUARMState *env, const ARMCPRegInfo *ri, | |
6410 | bool isread) | |
6411 | { | |
6412 | int el = arm_current_el(env); | |
6413 | ||
6414 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_TERR)) { | |
6415 | return CP_ACCESS_TRAP_EL2; | |
6416 | } | |
6417 | if (el < 3 && (env->cp15.scr_el3 & SCR_TERR)) { | |
6418 | return CP_ACCESS_TRAP_EL3; | |
6419 | } | |
6420 | return CP_ACCESS_OK; | |
6421 | } | |
6422 | ||
6423 | static uint64_t disr_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
6424 | { | |
6425 | int el = arm_current_el(env); | |
6426 | ||
6427 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_AMO)) { | |
6428 | return env->cp15.vdisr_el2; | |
6429 | } | |
6430 | if (el < 3 && (env->cp15.scr_el3 & SCR_EA)) { | |
6431 | return 0; /* RAZ/WI */ | |
6432 | } | |
6433 | return env->cp15.disr_el1; | |
6434 | } | |
6435 | ||
6436 | static void disr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) | |
6437 | { | |
6438 | int el = arm_current_el(env); | |
6439 | ||
6440 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_AMO)) { | |
6441 | env->cp15.vdisr_el2 = val; | |
6442 | return; | |
6443 | } | |
6444 | if (el < 3 && (env->cp15.scr_el3 & SCR_EA)) { | |
6445 | return; /* RAZ/WI */ | |
6446 | } | |
6447 | env->cp15.disr_el1 = val; | |
6448 | } | |
6449 | ||
6450 | /* | |
6451 | * Minimal RAS implementation with no Error Records. | |
6452 | * Which means that all of the Error Record registers: | |
6453 | * ERXADDR_EL1 | |
6454 | * ERXCTLR_EL1 | |
6455 | * ERXFR_EL1 | |
6456 | * ERXMISC0_EL1 | |
6457 | * ERXMISC1_EL1 | |
6458 | * ERXMISC2_EL1 | |
6459 | * ERXMISC3_EL1 | |
6460 | * ERXPFGCDN_EL1 (RASv1p1) | |
6461 | * ERXPFGCTL_EL1 (RASv1p1) | |
6462 | * ERXPFGF_EL1 (RASv1p1) | |
6463 | * ERXSTATUS_EL1 | |
6464 | * and | |
6465 | * ERRSELR_EL1 | |
6466 | * may generate UNDEFINED, which is the effect we get by not | |
6467 | * listing them at all. | |
6468 | */ | |
6469 | static const ARMCPRegInfo minimal_ras_reginfo[] = { | |
6470 | { .name = "DISR_EL1", .state = ARM_CP_STATE_BOTH, | |
6471 | .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 1, .opc2 = 1, | |
6472 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.disr_el1), | |
6473 | .readfn = disr_read, .writefn = disr_write, .raw_writefn = raw_write }, | |
6474 | { .name = "ERRIDR_EL1", .state = ARM_CP_STATE_BOTH, | |
6475 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 3, .opc2 = 0, | |
6476 | .access = PL1_R, .accessfn = access_terr, | |
6477 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6478 | { .name = "VDISR_EL2", .state = ARM_CP_STATE_BOTH, | |
6479 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 1, .opc2 = 1, | |
6480 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.vdisr_el2) }, | |
6481 | { .name = "VSESR_EL2", .state = ARM_CP_STATE_BOTH, | |
6482 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 3, | |
6483 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.vsesr_el2) }, | |
6484 | }; | |
6485 | ||
397d922c RH |
6486 | /* |
6487 | * Return the exception level to which exceptions should be taken | |
6488 | * via SVEAccessTrap. This excludes the check for whether the exception | |
6489 | * should be routed through AArch64.AdvSIMDFPAccessTrap. That can easily | |
6490 | * be found by testing 0 < fp_exception_el < sve_exception_el. | |
6491 | * | |
6492 | * C.f. the ARM pseudocode function CheckSVEEnabled. Note that the | |
6493 | * pseudocode does *not* separate out the FP trap checks, but has them | |
6494 | * all in one function. | |
5be5e8ed | 6495 | */ |
ced31551 | 6496 | int sve_exception_el(CPUARMState *env, int el) |
5be5e8ed RH |
6497 | { |
6498 | #ifndef CONFIG_USER_ONLY | |
aa4451b6 | 6499 | if (el <= 1 && !el_is_in_host(env, el)) { |
fab8ad39 | 6500 | switch (FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, ZEN)) { |
7701cee5 RH |
6501 | case 1: |
6502 | if (el != 0) { | |
6503 | break; | |
6504 | } | |
6505 | /* fall through */ | |
6506 | case 0: | |
6507 | case 2: | |
61a8c23a | 6508 | return 1; |
5be5e8ed | 6509 | } |
5be5e8ed RH |
6510 | } |
6511 | ||
7d38cb92 RH |
6512 | if (el <= 2 && arm_is_el2_enabled(env)) { |
6513 | /* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */ | |
6514 | if (env->cp15.hcr_el2 & HCR_E2H) { | |
fab8ad39 | 6515 | switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, ZEN)) { |
d5a6fa2d | 6516 | case 1: |
7d38cb92 | 6517 | if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) { |
d5a6fa2d RH |
6518 | break; |
6519 | } | |
6520 | /* fall through */ | |
6521 | case 0: | |
6522 | case 2: | |
6523 | return 2; | |
6524 | } | |
7d38cb92 | 6525 | } else { |
fab8ad39 | 6526 | if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TZ)) { |
d5a6fa2d RH |
6527 | return 2; |
6528 | } | |
60eed086 | 6529 | } |
5be5e8ed RH |
6530 | } |
6531 | ||
60eed086 RH |
6532 | /* CPTR_EL3. Since EZ is negative we must check for EL3. */ |
6533 | if (arm_feature(env, ARM_FEATURE_EL3) | |
fab8ad39 | 6534 | && !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, EZ)) { |
5be5e8ed RH |
6535 | return 3; |
6536 | } | |
6537 | #endif | |
6538 | return 0; | |
6539 | } | |
6540 | ||
6b2ca83e RH |
6541 | /* |
6542 | * Return the exception level to which exceptions should be taken for SME. | |
6543 | * C.f. the ARM pseudocode function CheckSMEAccess. | |
6544 | */ | |
6545 | int sme_exception_el(CPUARMState *env, int el) | |
6546 | { | |
6547 | #ifndef CONFIG_USER_ONLY | |
6548 | if (el <= 1 && !el_is_in_host(env, el)) { | |
6549 | switch (FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, SMEN)) { | |
6550 | case 1: | |
6551 | if (el != 0) { | |
6552 | break; | |
6553 | } | |
6554 | /* fall through */ | |
6555 | case 0: | |
6556 | case 2: | |
6557 | return 1; | |
6558 | } | |
6559 | } | |
6560 | ||
6561 | if (el <= 2 && arm_is_el2_enabled(env)) { | |
6562 | /* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */ | |
6563 | if (env->cp15.hcr_el2 & HCR_E2H) { | |
6564 | switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, SMEN)) { | |
6565 | case 1: | |
6566 | if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) { | |
6567 | break; | |
6568 | } | |
6569 | /* fall through */ | |
6570 | case 0: | |
6571 | case 2: | |
6572 | return 2; | |
6573 | } | |
6574 | } else { | |
6575 | if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TSM)) { | |
6576 | return 2; | |
6577 | } | |
6578 | } | |
6579 | } | |
6580 | ||
6581 | /* CPTR_EL3. Since ESM is negative we must check for EL3. */ | |
6582 | if (arm_feature(env, ARM_FEATURE_EL3) | |
6583 | && !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, ESM)) { | |
6584 | return 3; | |
6585 | } | |
6586 | #endif | |
6587 | return 0; | |
6588 | } | |
6589 | ||
75fe8356 RH |
6590 | /* This corresponds to the ARM pseudocode function IsFullA64Enabled(). */ |
6591 | static bool sme_fa64(CPUARMState *env, int el) | |
6592 | { | |
6593 | if (!cpu_isar_feature(aa64_sme_fa64, env_archcpu(env))) { | |
6594 | return false; | |
6595 | } | |
6596 | ||
6597 | if (el <= 1 && !el_is_in_host(env, el)) { | |
6598 | if (!FIELD_EX64(env->vfp.smcr_el[1], SMCR, FA64)) { | |
6599 | return false; | |
6600 | } | |
6601 | } | |
6602 | if (el <= 2 && arm_is_el2_enabled(env)) { | |
6603 | if (!FIELD_EX64(env->vfp.smcr_el[2], SMCR, FA64)) { | |
6604 | return false; | |
6605 | } | |
6606 | } | |
6607 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
6608 | if (!FIELD_EX64(env->vfp.smcr_el[3], SMCR, FA64)) { | |
6609 | return false; | |
6610 | } | |
6611 | } | |
6612 | ||
6613 | return true; | |
6614 | } | |
6615 | ||
0ab5953b RH |
6616 | /* |
6617 | * Given that SVE is enabled, return the vector length for EL. | |
6618 | */ | |
6ca54aa9 | 6619 | uint32_t sve_vqm1_for_el_sm(CPUARMState *env, int el, bool sm) |
0ab5953b | 6620 | { |
2fc0cc0e | 6621 | ARMCPU *cpu = env_archcpu(env); |
6ca54aa9 RH |
6622 | uint64_t *cr = env->vfp.zcr_el; |
6623 | uint32_t map = cpu->sve_vq.map; | |
6624 | uint32_t len = ARM_MAX_VQ - 1; | |
6625 | ||
6626 | if (sm) { | |
6627 | cr = env->vfp.smcr_el; | |
6628 | map = cpu->sme_vq.map; | |
6629 | } | |
0ab5953b | 6630 | |
c6225beb | 6631 | if (el <= 1 && !el_is_in_host(env, el)) { |
6ca54aa9 | 6632 | len = MIN(len, 0xf & (uint32_t)cr[1]); |
0ab5953b | 6633 | } |
6a02a732 | 6634 | if (el <= 2 && arm_feature(env, ARM_FEATURE_EL2)) { |
6ca54aa9 | 6635 | len = MIN(len, 0xf & (uint32_t)cr[2]); |
0ab5953b | 6636 | } |
6a02a732 | 6637 | if (arm_feature(env, ARM_FEATURE_EL3)) { |
6ca54aa9 RH |
6638 | len = MIN(len, 0xf & (uint32_t)cr[3]); |
6639 | } | |
6640 | ||
6641 | map &= MAKE_64BIT_MASK(0, len + 1); | |
6642 | if (map != 0) { | |
6643 | return 31 - clz32(map); | |
0ab5953b | 6644 | } |
0df9142d | 6645 | |
6ca54aa9 RH |
6646 | /* Bit 0 is always set for Normal SVE -- not so for Streaming SVE. */ |
6647 | assert(sm); | |
6648 | return ctz32(cpu->sme_vq.map); | |
6649 | } | |
6650 | ||
6651 | uint32_t sve_vqm1_for_el(CPUARMState *env, int el) | |
6652 | { | |
6653 | return sve_vqm1_for_el_sm(env, el, FIELD_EX64(env->svcr, SVCR, SM)); | |
0ab5953b RH |
6654 | } |
6655 | ||
5be5e8ed RH |
6656 | static void zcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
6657 | uint64_t value) | |
6658 | { | |
0ab5953b | 6659 | int cur_el = arm_current_el(env); |
5ef3cc56 | 6660 | int old_len = sve_vqm1_for_el(env, cur_el); |
0ab5953b RH |
6661 | int new_len; |
6662 | ||
5be5e8ed | 6663 | /* Bits other than [3:0] are RAZ/WI. */ |
7b351d98 | 6664 | QEMU_BUILD_BUG_ON(ARM_MAX_VQ > 16); |
5be5e8ed | 6665 | raw_write(env, ri, value & 0xf); |
0ab5953b RH |
6666 | |
6667 | /* | |
6668 | * Because we arrived here, we know both FP and SVE are enabled; | |
6669 | * otherwise we would have trapped access to the ZCR_ELn register. | |
6670 | */ | |
5ef3cc56 | 6671 | new_len = sve_vqm1_for_el(env, cur_el); |
0ab5953b RH |
6672 | if (new_len < old_len) { |
6673 | aarch64_sve_narrow_vq(env, new_len + 1); | |
6674 | } | |
5be5e8ed RH |
6675 | } |
6676 | ||
60360d82 RH |
6677 | static const ARMCPRegInfo zcr_reginfo[] = { |
6678 | { .name = "ZCR_EL1", .state = ARM_CP_STATE_AA64, | |
6679 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 0, | |
6680 | .access = PL1_RW, .type = ARM_CP_SVE, | |
6681 | .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[1]), | |
6682 | .writefn = zcr_write, .raw_writefn = raw_write }, | |
6683 | { .name = "ZCR_EL2", .state = ARM_CP_STATE_AA64, | |
6684 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 0, | |
6685 | .access = PL2_RW, .type = ARM_CP_SVE, | |
6686 | .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[2]), | |
6687 | .writefn = zcr_write, .raw_writefn = raw_write }, | |
6688 | { .name = "ZCR_EL3", .state = ARM_CP_STATE_AA64, | |
6689 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 2, .opc2 = 0, | |
6690 | .access = PL3_RW, .type = ARM_CP_SVE, | |
6691 | .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[3]), | |
6692 | .writefn = zcr_write, .raw_writefn = raw_write }, | |
5be5e8ed RH |
6693 | }; |
6694 | ||
9e5ec745 RH |
6695 | #ifdef TARGET_AARCH64 |
6696 | static CPAccessResult access_tpidr2(CPUARMState *env, const ARMCPRegInfo *ri, | |
6697 | bool isread) | |
6698 | { | |
6699 | int el = arm_current_el(env); | |
6700 | ||
6701 | if (el == 0) { | |
6702 | uint64_t sctlr = arm_sctlr(env, el); | |
6703 | if (!(sctlr & SCTLR_EnTP2)) { | |
6704 | return CP_ACCESS_TRAP; | |
6705 | } | |
6706 | } | |
6707 | /* TODO: FEAT_FGT */ | |
6708 | if (el < 3 | |
6709 | && arm_feature(env, ARM_FEATURE_EL3) | |
6710 | && !(env->cp15.scr_el3 & SCR_ENTP2)) { | |
6711 | return CP_ACCESS_TRAP_EL3; | |
6712 | } | |
6713 | return CP_ACCESS_OK; | |
6714 | } | |
6715 | ||
d5b1223a RH |
6716 | static CPAccessResult access_esm(CPUARMState *env, const ARMCPRegInfo *ri, |
6717 | bool isread) | |
6718 | { | |
6719 | /* TODO: FEAT_FGT for SMPRI_EL1 but not SMPRIMAP_EL2 */ | |
6720 | if (arm_current_el(env) < 3 | |
6721 | && arm_feature(env, ARM_FEATURE_EL3) | |
6722 | && !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, ESM)) { | |
6723 | return CP_ACCESS_TRAP_EL3; | |
6724 | } | |
6725 | return CP_ACCESS_OK; | |
6726 | } | |
6727 | ||
7f2a01e7 RH |
6728 | /* ResetSVEState */ |
6729 | static void arm_reset_sve_state(CPUARMState *env) | |
6730 | { | |
6731 | memset(env->vfp.zregs, 0, sizeof(env->vfp.zregs)); | |
6732 | /* Recall that FFR is stored as pregs[16]. */ | |
6733 | memset(env->vfp.pregs, 0, sizeof(env->vfp.pregs)); | |
6734 | vfp_set_fpcr(env, 0x0800009f); | |
6735 | } | |
6736 | ||
2a8af382 RH |
6737 | void aarch64_set_svcr(CPUARMState *env, uint64_t new, uint64_t mask) |
6738 | { | |
6739 | uint64_t change = (env->svcr ^ new) & mask; | |
6740 | ||
f4318557 RH |
6741 | if (change == 0) { |
6742 | return; | |
6743 | } | |
2a8af382 | 6744 | env->svcr ^= change; |
7f2a01e7 RH |
6745 | |
6746 | if (change & R_SVCR_SM_MASK) { | |
6747 | arm_reset_sve_state(env); | |
6748 | } | |
fccb4918 RH |
6749 | |
6750 | /* | |
6751 | * ResetSMEState. | |
6752 | * | |
6753 | * SetPSTATE_ZA zeros on enable and disable. We can zero this only | |
6754 | * on enable: while disabled, the storage is inaccessible and the | |
6755 | * value does not matter. We're not saving the storage in vmstate | |
6756 | * when disabled either. | |
6757 | */ | |
6758 | if (change & new & R_SVCR_ZA_MASK) { | |
6759 | memset(env->zarray, 0, sizeof(env->zarray)); | |
6760 | } | |
f4318557 RH |
6761 | |
6762 | arm_rebuild_hflags(env); | |
2a8af382 RH |
6763 | } |
6764 | ||
c37e6ac9 RH |
6765 | static void svcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
6766 | uint64_t value) | |
6767 | { | |
2a8af382 | 6768 | aarch64_set_svcr(env, value, -1); |
c37e6ac9 RH |
6769 | } |
6770 | ||
de561988 RH |
6771 | static void smcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
6772 | uint64_t value) | |
6773 | { | |
6774 | int cur_el = arm_current_el(env); | |
6775 | int old_len = sve_vqm1_for_el(env, cur_el); | |
6776 | int new_len; | |
6777 | ||
6778 | QEMU_BUILD_BUG_ON(ARM_MAX_VQ > R_SMCR_LEN_MASK + 1); | |
6779 | value &= R_SMCR_LEN_MASK | R_SMCR_FA64_MASK; | |
6780 | raw_write(env, ri, value); | |
6781 | ||
6782 | /* | |
6783 | * Note that it is CONSTRAINED UNPREDICTABLE what happens to ZA storage | |
6784 | * when SVL is widened (old values kept, or zeros). Choose to keep the | |
6785 | * current values for simplicity. But for QEMU internals, we must still | |
6786 | * apply the narrower SVL to the Zregs and Pregs -- see the comment | |
6787 | * above aarch64_sve_narrow_vq. | |
6788 | */ | |
6789 | new_len = sve_vqm1_for_el(env, cur_el); | |
6790 | if (new_len < old_len) { | |
6791 | aarch64_sve_narrow_vq(env, new_len + 1); | |
6792 | } | |
6793 | } | |
6794 | ||
9e5ec745 RH |
6795 | static const ARMCPRegInfo sme_reginfo[] = { |
6796 | { .name = "TPIDR2_EL0", .state = ARM_CP_STATE_AA64, | |
6797 | .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 5, | |
6798 | .access = PL0_RW, .accessfn = access_tpidr2, | |
6799 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr2_el0) }, | |
c37e6ac9 RH |
6800 | { .name = "SVCR", .state = ARM_CP_STATE_AA64, |
6801 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 2, | |
6802 | .access = PL0_RW, .type = ARM_CP_SME, | |
6803 | .fieldoffset = offsetof(CPUARMState, svcr), | |
6804 | .writefn = svcr_write, .raw_writefn = raw_write }, | |
de561988 RH |
6805 | { .name = "SMCR_EL1", .state = ARM_CP_STATE_AA64, |
6806 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 6, | |
6807 | .access = PL1_RW, .type = ARM_CP_SME, | |
6808 | .fieldoffset = offsetof(CPUARMState, vfp.smcr_el[1]), | |
6809 | .writefn = smcr_write, .raw_writefn = raw_write }, | |
6810 | { .name = "SMCR_EL2", .state = ARM_CP_STATE_AA64, | |
6811 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 6, | |
6812 | .access = PL2_RW, .type = ARM_CP_SME, | |
6813 | .fieldoffset = offsetof(CPUARMState, vfp.smcr_el[2]), | |
6814 | .writefn = smcr_write, .raw_writefn = raw_write }, | |
6815 | { .name = "SMCR_EL3", .state = ARM_CP_STATE_AA64, | |
6816 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 2, .opc2 = 6, | |
6817 | .access = PL3_RW, .type = ARM_CP_SME, | |
6818 | .fieldoffset = offsetof(CPUARMState, vfp.smcr_el[3]), | |
6819 | .writefn = smcr_write, .raw_writefn = raw_write }, | |
d5b1223a RH |
6820 | { .name = "SMIDR_EL1", .state = ARM_CP_STATE_AA64, |
6821 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 6, | |
6822 | .access = PL1_R, .accessfn = access_aa64_tid1, | |
6823 | /* | |
6824 | * IMPLEMENTOR = 0 (software) | |
6825 | * REVISION = 0 (implementation defined) | |
6826 | * SMPS = 0 (no streaming execution priority in QEMU) | |
6827 | * AFFINITY = 0 (streaming sve mode not shared with other PEs) | |
6828 | */ | |
6829 | .type = ARM_CP_CONST, .resetvalue = 0, }, | |
6830 | /* | |
6831 | * Because SMIDR_EL1.SMPS is 0, SMPRI_EL1 and SMPRIMAP_EL2 are RES 0. | |
6832 | */ | |
6833 | { .name = "SMPRI_EL1", .state = ARM_CP_STATE_AA64, | |
6834 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 4, | |
6835 | .access = PL1_RW, .accessfn = access_esm, | |
6836 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6837 | { .name = "SMPRIMAP_EL2", .state = ARM_CP_STATE_AA64, | |
6838 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 5, | |
6839 | .access = PL2_RW, .accessfn = access_esm, | |
6840 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
9e5ec745 RH |
6841 | }; |
6842 | #endif /* TARGET_AARCH64 */ | |
6843 | ||
24183fb6 PM |
6844 | static void define_pmu_regs(ARMCPU *cpu) |
6845 | { | |
6846 | /* | |
6847 | * v7 performance monitor control register: same implementor | |
6848 | * field as main ID register, and we implement four counters in | |
6849 | * addition to the cycle count register. | |
6850 | */ | |
24526bb9 | 6851 | unsigned int i, pmcrn = pmu_num_counters(&cpu->env); |
24183fb6 PM |
6852 | ARMCPRegInfo pmcr = { |
6853 | .name = "PMCR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 0, | |
6854 | .access = PL0_RW, | |
6855 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
6856 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcr), | |
6857 | .accessfn = pmreg_access, .writefn = pmcr_write, | |
6858 | .raw_writefn = raw_write, | |
6859 | }; | |
6860 | ARMCPRegInfo pmcr64 = { | |
6861 | .name = "PMCR_EL0", .state = ARM_CP_STATE_AA64, | |
6862 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 0, | |
6863 | .access = PL0_RW, .accessfn = pmreg_access, | |
6864 | .type = ARM_CP_IO, | |
6865 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr), | |
24526bb9 | 6866 | .resetvalue = cpu->isar.reset_pmcr_el0, |
24183fb6 PM |
6867 | .writefn = pmcr_write, .raw_writefn = raw_write, |
6868 | }; | |
24526bb9 | 6869 | |
24183fb6 PM |
6870 | define_one_arm_cp_reg(cpu, &pmcr); |
6871 | define_one_arm_cp_reg(cpu, &pmcr64); | |
6872 | for (i = 0; i < pmcrn; i++) { | |
6873 | char *pmevcntr_name = g_strdup_printf("PMEVCNTR%d", i); | |
6874 | char *pmevcntr_el0_name = g_strdup_printf("PMEVCNTR%d_EL0", i); | |
6875 | char *pmevtyper_name = g_strdup_printf("PMEVTYPER%d", i); | |
6876 | char *pmevtyper_el0_name = g_strdup_printf("PMEVTYPER%d_EL0", i); | |
6877 | ARMCPRegInfo pmev_regs[] = { | |
6878 | { .name = pmevcntr_name, .cp = 15, .crn = 14, | |
6879 | .crm = 8 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, | |
6880 | .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, | |
6881 | .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, | |
99a50d1a | 6882 | .accessfn = pmreg_access_xevcntr }, |
24183fb6 PM |
6883 | { .name = pmevcntr_el0_name, .state = ARM_CP_STATE_AA64, |
6884 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 8 | (3 & (i >> 3)), | |
99a50d1a | 6885 | .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access_xevcntr, |
24183fb6 PM |
6886 | .type = ARM_CP_IO, |
6887 | .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, | |
6888 | .raw_readfn = pmevcntr_rawread, | |
6889 | .raw_writefn = pmevcntr_rawwrite }, | |
6890 | { .name = pmevtyper_name, .cp = 15, .crn = 14, | |
6891 | .crm = 12 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, | |
6892 | .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, | |
6893 | .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, | |
6894 | .accessfn = pmreg_access }, | |
6895 | { .name = pmevtyper_el0_name, .state = ARM_CP_STATE_AA64, | |
6896 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 12 | (3 & (i >> 3)), | |
6897 | .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, | |
6898 | .type = ARM_CP_IO, | |
6899 | .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, | |
6900 | .raw_writefn = pmevtyper_rawwrite }, | |
24183fb6 PM |
6901 | }; |
6902 | define_arm_cp_regs(cpu, pmev_regs); | |
6903 | g_free(pmevcntr_name); | |
6904 | g_free(pmevcntr_el0_name); | |
6905 | g_free(pmevtyper_name); | |
6906 | g_free(pmevtyper_el0_name); | |
6907 | } | |
a793bcd0 | 6908 | if (cpu_isar_feature(aa32_pmuv3p1, cpu)) { |
24183fb6 PM |
6909 | ARMCPRegInfo v81_pmu_regs[] = { |
6910 | { .name = "PMCEID2", .state = ARM_CP_STATE_AA32, | |
6911 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 4, | |
6912 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
6913 | .resetvalue = extract64(cpu->pmceid0, 32, 32) }, | |
6914 | { .name = "PMCEID3", .state = ARM_CP_STATE_AA32, | |
6915 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 5, | |
6916 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
6917 | .resetvalue = extract64(cpu->pmceid1, 32, 32) }, | |
24183fb6 PM |
6918 | }; |
6919 | define_arm_cp_regs(cpu, v81_pmu_regs); | |
6920 | } | |
a793bcd0 | 6921 | if (cpu_isar_feature(any_pmuv3p4, cpu)) { |
15dd1ebd PM |
6922 | static const ARMCPRegInfo v84_pmmir = { |
6923 | .name = "PMMIR_EL1", .state = ARM_CP_STATE_BOTH, | |
6924 | .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 6, | |
6925 | .access = PL1_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
6926 | .resetvalue = 0 | |
6927 | }; | |
6928 | define_one_arm_cp_reg(cpu, &v84_pmmir); | |
6929 | } | |
24183fb6 PM |
6930 | } |
6931 | ||
9b37a28c FR |
6932 | /* |
6933 | * We don't know until after realize whether there's a GICv3 | |
96a8b92e PM |
6934 | * attached, and that is what registers the gicv3 sysregs. |
6935 | * So we have to fill in the GIC fields in ID_PFR/ID_PFR1_EL1/ID_AA64PFR0_EL1 | |
6936 | * at runtime. | |
6937 | */ | |
6938 | static uint64_t id_pfr1_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
6939 | { | |
2fc0cc0e | 6940 | ARMCPU *cpu = env_archcpu(env); |
8a130a7b | 6941 | uint64_t pfr1 = cpu->isar.id_pfr1; |
96a8b92e PM |
6942 | |
6943 | if (env->gicv3state) { | |
6944 | pfr1 |= 1 << 28; | |
6945 | } | |
6946 | return pfr1; | |
6947 | } | |
6948 | ||
976b99b6 | 6949 | #ifndef CONFIG_USER_ONLY |
96a8b92e PM |
6950 | static uint64_t id_aa64pfr0_read(CPUARMState *env, const ARMCPRegInfo *ri) |
6951 | { | |
2fc0cc0e | 6952 | ARMCPU *cpu = env_archcpu(env); |
47576b94 | 6953 | uint64_t pfr0 = cpu->isar.id_aa64pfr0; |
96a8b92e PM |
6954 | |
6955 | if (env->gicv3state) { | |
6956 | pfr0 |= 1 << 24; | |
6957 | } | |
6958 | return pfr0; | |
6959 | } | |
976b99b6 | 6960 | #endif |
96a8b92e | 6961 | |
9b37a28c FR |
6962 | /* |
6963 | * Shared logic between LORID and the rest of the LOR* registers. | |
9bd268ba | 6964 | * Secure state exclusion has already been dealt with. |
2d7137c1 | 6965 | */ |
9bd268ba RDC |
6966 | static CPAccessResult access_lor_ns(CPUARMState *env, |
6967 | const ARMCPRegInfo *ri, bool isread) | |
2d7137c1 RH |
6968 | { |
6969 | int el = arm_current_el(env); | |
6970 | ||
6971 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_TLOR)) { | |
6972 | return CP_ACCESS_TRAP_EL2; | |
6973 | } | |
6974 | if (el < 3 && (env->cp15.scr_el3 & SCR_TLOR)) { | |
6975 | return CP_ACCESS_TRAP_EL3; | |
6976 | } | |
6977 | return CP_ACCESS_OK; | |
6978 | } | |
6979 | ||
2d7137c1 RH |
6980 | static CPAccessResult access_lor_other(CPUARMState *env, |
6981 | const ARMCPRegInfo *ri, bool isread) | |
6982 | { | |
6983 | if (arm_is_secure_below_el3(env)) { | |
6984 | /* Access denied in secure mode. */ | |
6985 | return CP_ACCESS_TRAP; | |
6986 | } | |
9bd268ba | 6987 | return access_lor_ns(env, ri, isread); |
2d7137c1 RH |
6988 | } |
6989 | ||
d8564ee4 RH |
6990 | /* |
6991 | * A trivial implementation of ARMv8.1-LOR leaves all of these | |
6992 | * registers fixed at 0, which indicates that there are zero | |
6993 | * supported Limited Ordering regions. | |
6994 | */ | |
6995 | static const ARMCPRegInfo lor_reginfo[] = { | |
6996 | { .name = "LORSA_EL1", .state = ARM_CP_STATE_AA64, | |
6997 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 0, | |
6998 | .access = PL1_RW, .accessfn = access_lor_other, | |
6999 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7000 | { .name = "LOREA_EL1", .state = ARM_CP_STATE_AA64, | |
7001 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 1, | |
7002 | .access = PL1_RW, .accessfn = access_lor_other, | |
7003 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7004 | { .name = "LORN_EL1", .state = ARM_CP_STATE_AA64, | |
7005 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 2, | |
7006 | .access = PL1_RW, .accessfn = access_lor_other, | |
7007 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7008 | { .name = "LORC_EL1", .state = ARM_CP_STATE_AA64, | |
7009 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 3, | |
7010 | .access = PL1_RW, .accessfn = access_lor_other, | |
7011 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7012 | { .name = "LORID_EL1", .state = ARM_CP_STATE_AA64, | |
7013 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 7, | |
9bd268ba | 7014 | .access = PL1_R, .accessfn = access_lor_ns, |
d8564ee4 | 7015 | .type = ARM_CP_CONST, .resetvalue = 0 }, |
d8564ee4 RH |
7016 | }; |
7017 | ||
967aa94f RH |
7018 | #ifdef TARGET_AARCH64 |
7019 | static CPAccessResult access_pauth(CPUARMState *env, const ARMCPRegInfo *ri, | |
7020 | bool isread) | |
7021 | { | |
7022 | int el = arm_current_el(env); | |
7023 | ||
7024 | if (el < 2 && | |
07b034ea | 7025 | arm_is_el2_enabled(env) && |
967aa94f RH |
7026 | !(arm_hcr_el2_eff(env) & HCR_APK)) { |
7027 | return CP_ACCESS_TRAP_EL2; | |
7028 | } | |
7029 | if (el < 3 && | |
7030 | arm_feature(env, ARM_FEATURE_EL3) && | |
7031 | !(env->cp15.scr_el3 & SCR_APK)) { | |
7032 | return CP_ACCESS_TRAP_EL3; | |
7033 | } | |
7034 | return CP_ACCESS_OK; | |
7035 | } | |
7036 | ||
7037 | static const ARMCPRegInfo pauth_reginfo[] = { | |
7038 | { .name = "APDAKEYLO_EL1", .state = ARM_CP_STATE_AA64, | |
7039 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 0, | |
7040 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7041 | .fieldoffset = offsetof(CPUARMState, keys.apda.lo) }, |
967aa94f RH |
7042 | { .name = "APDAKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7043 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 1, | |
7044 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7045 | .fieldoffset = offsetof(CPUARMState, keys.apda.hi) }, |
967aa94f RH |
7046 | { .name = "APDBKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7047 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 2, | |
7048 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7049 | .fieldoffset = offsetof(CPUARMState, keys.apdb.lo) }, |
967aa94f RH |
7050 | { .name = "APDBKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7051 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 3, | |
7052 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7053 | .fieldoffset = offsetof(CPUARMState, keys.apdb.hi) }, |
967aa94f RH |
7054 | { .name = "APGAKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7055 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 3, .opc2 = 0, | |
7056 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7057 | .fieldoffset = offsetof(CPUARMState, keys.apga.lo) }, |
967aa94f RH |
7058 | { .name = "APGAKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7059 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 3, .opc2 = 1, | |
7060 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7061 | .fieldoffset = offsetof(CPUARMState, keys.apga.hi) }, |
967aa94f RH |
7062 | { .name = "APIAKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7063 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 0, | |
7064 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7065 | .fieldoffset = offsetof(CPUARMState, keys.apia.lo) }, |
967aa94f RH |
7066 | { .name = "APIAKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7067 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 1, | |
7068 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7069 | .fieldoffset = offsetof(CPUARMState, keys.apia.hi) }, |
967aa94f RH |
7070 | { .name = "APIBKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7071 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 2, | |
7072 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7073 | .fieldoffset = offsetof(CPUARMState, keys.apib.lo) }, |
967aa94f RH |
7074 | { .name = "APIBKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7075 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 3, | |
7076 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7077 | .fieldoffset = offsetof(CPUARMState, keys.apib.hi) }, |
967aa94f | 7078 | }; |
de390645 | 7079 | |
84940ed8 RC |
7080 | static const ARMCPRegInfo tlbirange_reginfo[] = { |
7081 | { .name = "TLBI_RVAE1IS", .state = ARM_CP_STATE_AA64, | |
7082 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 1, | |
0f66d223 | 7083 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7084 | .writefn = tlbi_aa64_rvae1is_write }, |
7085 | { .name = "TLBI_RVAAE1IS", .state = ARM_CP_STATE_AA64, | |
7086 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 3, | |
0f66d223 | 7087 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7088 | .writefn = tlbi_aa64_rvae1is_write }, |
7089 | { .name = "TLBI_RVALE1IS", .state = ARM_CP_STATE_AA64, | |
7090 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 5, | |
0f66d223 | 7091 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7092 | .writefn = tlbi_aa64_rvae1is_write }, |
7093 | { .name = "TLBI_RVAALE1IS", .state = ARM_CP_STATE_AA64, | |
7094 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 7, | |
0f66d223 | 7095 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7096 | .writefn = tlbi_aa64_rvae1is_write }, |
7097 | { .name = "TLBI_RVAE1OS", .state = ARM_CP_STATE_AA64, | |
7098 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 1, | |
fe3ca86c | 7099 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7100 | .writefn = tlbi_aa64_rvae1is_write }, |
7101 | { .name = "TLBI_RVAAE1OS", .state = ARM_CP_STATE_AA64, | |
7102 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 3, | |
fe3ca86c | 7103 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7104 | .writefn = tlbi_aa64_rvae1is_write }, |
7105 | { .name = "TLBI_RVALE1OS", .state = ARM_CP_STATE_AA64, | |
7106 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 5, | |
fe3ca86c | 7107 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7108 | .writefn = tlbi_aa64_rvae1is_write }, |
7109 | { .name = "TLBI_RVAALE1OS", .state = ARM_CP_STATE_AA64, | |
7110 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 7, | |
fe3ca86c | 7111 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7112 | .writefn = tlbi_aa64_rvae1is_write }, |
7113 | { .name = "TLBI_RVAE1", .state = ARM_CP_STATE_AA64, | |
7114 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 1, | |
4870f38b | 7115 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7116 | .writefn = tlbi_aa64_rvae1_write }, |
7117 | { .name = "TLBI_RVAAE1", .state = ARM_CP_STATE_AA64, | |
7118 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 3, | |
4870f38b | 7119 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7120 | .writefn = tlbi_aa64_rvae1_write }, |
7121 | { .name = "TLBI_RVALE1", .state = ARM_CP_STATE_AA64, | |
7122 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 5, | |
4870f38b | 7123 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7124 | .writefn = tlbi_aa64_rvae1_write }, |
7125 | { .name = "TLBI_RVAALE1", .state = ARM_CP_STATE_AA64, | |
7126 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 7, | |
4870f38b | 7127 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7128 | .writefn = tlbi_aa64_rvae1_write }, |
7129 | { .name = "TLBI_RIPAS2E1IS", .state = ARM_CP_STATE_AA64, | |
7130 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 2, | |
575a94af RH |
7131 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7132 | .writefn = tlbi_aa64_ripas2e1is_write }, | |
84940ed8 RC |
7133 | { .name = "TLBI_RIPAS2LE1IS", .state = ARM_CP_STATE_AA64, |
7134 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 6, | |
575a94af RH |
7135 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7136 | .writefn = tlbi_aa64_ripas2e1is_write }, | |
84940ed8 RC |
7137 | { .name = "TLBI_RVAE2IS", .state = ARM_CP_STATE_AA64, |
7138 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 2, .opc2 = 1, | |
696ba377 | 7139 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7140 | .writefn = tlbi_aa64_rvae2is_write }, |
7141 | { .name = "TLBI_RVALE2IS", .state = ARM_CP_STATE_AA64, | |
7142 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 2, .opc2 = 5, | |
696ba377 | 7143 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7144 | .writefn = tlbi_aa64_rvae2is_write }, |
7145 | { .name = "TLBI_RIPAS2E1", .state = ARM_CP_STATE_AA64, | |
7146 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 2, | |
575a94af RH |
7147 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7148 | .writefn = tlbi_aa64_ripas2e1_write }, | |
7149 | { .name = "TLBI_RIPAS2LE1", .state = ARM_CP_STATE_AA64, | |
84940ed8 | 7150 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 6, |
575a94af RH |
7151 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7152 | .writefn = tlbi_aa64_ripas2e1_write }, | |
84940ed8 RC |
7153 | { .name = "TLBI_RVAE2OS", .state = ARM_CP_STATE_AA64, |
7154 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 5, .opc2 = 1, | |
696ba377 | 7155 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7156 | .writefn = tlbi_aa64_rvae2is_write }, |
7157 | { .name = "TLBI_RVALE2OS", .state = ARM_CP_STATE_AA64, | |
7158 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 5, .opc2 = 5, | |
696ba377 | 7159 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7160 | .writefn = tlbi_aa64_rvae2is_write }, |
7161 | { .name = "TLBI_RVAE2", .state = ARM_CP_STATE_AA64, | |
7162 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 6, .opc2 = 1, | |
696ba377 | 7163 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7164 | .writefn = tlbi_aa64_rvae2_write }, |
7165 | { .name = "TLBI_RVALE2", .state = ARM_CP_STATE_AA64, | |
7166 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 6, .opc2 = 5, | |
696ba377 | 7167 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7168 | .writefn = tlbi_aa64_rvae2_write }, |
7169 | { .name = "TLBI_RVAE3IS", .state = ARM_CP_STATE_AA64, | |
7170 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 2, .opc2 = 1, | |
7171 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7172 | .writefn = tlbi_aa64_rvae3is_write }, | |
7173 | { .name = "TLBI_RVALE3IS", .state = ARM_CP_STATE_AA64, | |
7174 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 2, .opc2 = 5, | |
7175 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7176 | .writefn = tlbi_aa64_rvae3is_write }, | |
7177 | { .name = "TLBI_RVAE3OS", .state = ARM_CP_STATE_AA64, | |
7178 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 5, .opc2 = 1, | |
7179 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7180 | .writefn = tlbi_aa64_rvae3is_write }, | |
7181 | { .name = "TLBI_RVALE3OS", .state = ARM_CP_STATE_AA64, | |
7182 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 5, .opc2 = 5, | |
7183 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7184 | .writefn = tlbi_aa64_rvae3is_write }, | |
7185 | { .name = "TLBI_RVAE3", .state = ARM_CP_STATE_AA64, | |
7186 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 6, .opc2 = 1, | |
7187 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7188 | .writefn = tlbi_aa64_rvae3_write }, | |
7189 | { .name = "TLBI_RVALE3", .state = ARM_CP_STATE_AA64, | |
7190 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 6, .opc2 = 5, | |
7191 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7192 | .writefn = tlbi_aa64_rvae3_write }, | |
84940ed8 RC |
7193 | }; |
7194 | ||
7113d618 RC |
7195 | static const ARMCPRegInfo tlbios_reginfo[] = { |
7196 | { .name = "TLBI_VMALLE1OS", .state = ARM_CP_STATE_AA64, | |
7197 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 0, | |
fe3ca86c | 7198 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
7113d618 | 7199 | .writefn = tlbi_aa64_vmalle1is_write }, |
b7469ef9 IH |
7200 | { .name = "TLBI_VAE1OS", .state = ARM_CP_STATE_AA64, |
7201 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 1, | |
fe3ca86c | 7202 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 | 7203 | .writefn = tlbi_aa64_vae1is_write }, |
7113d618 RC |
7204 | { .name = "TLBI_ASIDE1OS", .state = ARM_CP_STATE_AA64, |
7205 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 2, | |
fe3ca86c | 7206 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
7113d618 | 7207 | .writefn = tlbi_aa64_vmalle1is_write }, |
b7469ef9 IH |
7208 | { .name = "TLBI_VAAE1OS", .state = ARM_CP_STATE_AA64, |
7209 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 3, | |
fe3ca86c | 7210 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 IH |
7211 | .writefn = tlbi_aa64_vae1is_write }, |
7212 | { .name = "TLBI_VALE1OS", .state = ARM_CP_STATE_AA64, | |
7213 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 5, | |
fe3ca86c | 7214 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 IH |
7215 | .writefn = tlbi_aa64_vae1is_write }, |
7216 | { .name = "TLBI_VAALE1OS", .state = ARM_CP_STATE_AA64, | |
7217 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 7, | |
fe3ca86c | 7218 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 | 7219 | .writefn = tlbi_aa64_vae1is_write }, |
7113d618 RC |
7220 | { .name = "TLBI_ALLE2OS", .state = ARM_CP_STATE_AA64, |
7221 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 0, | |
696ba377 | 7222 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
7113d618 | 7223 | .writefn = tlbi_aa64_alle2is_write }, |
b7469ef9 IH |
7224 | { .name = "TLBI_VAE2OS", .state = ARM_CP_STATE_AA64, |
7225 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 1, | |
696ba377 | 7226 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
b7469ef9 | 7227 | .writefn = tlbi_aa64_vae2is_write }, |
7113d618 RC |
7228 | { .name = "TLBI_ALLE1OS", .state = ARM_CP_STATE_AA64, |
7229 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 4, | |
7230 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
7231 | .writefn = tlbi_aa64_alle1is_write }, | |
b7469ef9 IH |
7232 | { .name = "TLBI_VALE2OS", .state = ARM_CP_STATE_AA64, |
7233 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 5, | |
696ba377 | 7234 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
b7469ef9 | 7235 | .writefn = tlbi_aa64_vae2is_write }, |
7113d618 RC |
7236 | { .name = "TLBI_VMALLS12E1OS", .state = ARM_CP_STATE_AA64, |
7237 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 6, | |
7238 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
7239 | .writefn = tlbi_aa64_alle1is_write }, | |
7240 | { .name = "TLBI_IPAS2E1OS", .state = ARM_CP_STATE_AA64, | |
7241 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 0, | |
7242 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7243 | { .name = "TLBI_RIPAS2E1OS", .state = ARM_CP_STATE_AA64, | |
7244 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 3, | |
7245 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7246 | { .name = "TLBI_IPAS2LE1OS", .state = ARM_CP_STATE_AA64, | |
7247 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 4, | |
7248 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7249 | { .name = "TLBI_RIPAS2LE1OS", .state = ARM_CP_STATE_AA64, | |
7250 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 7, | |
7251 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7252 | { .name = "TLBI_ALLE3OS", .state = ARM_CP_STATE_AA64, | |
7253 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 1, .opc2 = 0, | |
7254 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7255 | .writefn = tlbi_aa64_alle3is_write }, | |
b7469ef9 IH |
7256 | { .name = "TLBI_VAE3OS", .state = ARM_CP_STATE_AA64, |
7257 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 1, .opc2 = 1, | |
7258 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7259 | .writefn = tlbi_aa64_vae3is_write }, | |
7260 | { .name = "TLBI_VALE3OS", .state = ARM_CP_STATE_AA64, | |
7261 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 1, .opc2 = 5, | |
7262 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7263 | .writefn = tlbi_aa64_vae3is_write }, | |
7113d618 RC |
7264 | }; |
7265 | ||
de390645 RH |
7266 | static uint64_t rndr_readfn(CPUARMState *env, const ARMCPRegInfo *ri) |
7267 | { | |
7268 | Error *err = NULL; | |
7269 | uint64_t ret; | |
7270 | ||
7271 | /* Success sets NZCV = 0000. */ | |
7272 | env->NF = env->CF = env->VF = 0, env->ZF = 1; | |
7273 | ||
7274 | if (qemu_guest_getrandom(&ret, sizeof(ret), &err) < 0) { | |
7275 | /* | |
7276 | * ??? Failed, for unknown reasons in the crypto subsystem. | |
7277 | * The best we can do is log the reason and return the | |
7278 | * timed-out indication to the guest. There is no reason | |
7279 | * we know to expect this failure to be transitory, so the | |
7280 | * guest may well hang retrying the operation. | |
7281 | */ | |
7282 | qemu_log_mask(LOG_UNIMP, "%s: Crypto failure: %s", | |
7283 | ri->name, error_get_pretty(err)); | |
7284 | error_free(err); | |
7285 | ||
7286 | env->ZF = 0; /* NZCF = 0100 */ | |
7287 | return 0; | |
7288 | } | |
7289 | return ret; | |
7290 | } | |
7291 | ||
7292 | /* We do not support re-seeding, so the two registers operate the same. */ | |
7293 | static const ARMCPRegInfo rndr_reginfo[] = { | |
7294 | { .name = "RNDR", .state = ARM_CP_STATE_AA64, | |
7295 | .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END | ARM_CP_IO, | |
7296 | .opc0 = 3, .opc1 = 3, .crn = 2, .crm = 4, .opc2 = 0, | |
7297 | .access = PL0_R, .readfn = rndr_readfn }, | |
7298 | { .name = "RNDRRS", .state = ARM_CP_STATE_AA64, | |
7299 | .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END | ARM_CP_IO, | |
7300 | .opc0 = 3, .opc1 = 3, .crn = 2, .crm = 4, .opc2 = 1, | |
7301 | .access = PL0_R, .readfn = rndr_readfn }, | |
de390645 | 7302 | }; |
0d57b499 BM |
7303 | |
7304 | #ifndef CONFIG_USER_ONLY | |
7305 | static void dccvap_writefn(CPUARMState *env, const ARMCPRegInfo *opaque, | |
7306 | uint64_t value) | |
7307 | { | |
7308 | ARMCPU *cpu = env_archcpu(env); | |
7309 | /* CTR_EL0 System register -> DminLine, bits [19:16] */ | |
7310 | uint64_t dline_size = 4 << ((cpu->ctr >> 16) & 0xF); | |
7311 | uint64_t vaddr_in = (uint64_t) value; | |
7312 | uint64_t vaddr = vaddr_in & ~(dline_size - 1); | |
7313 | void *haddr; | |
7314 | int mem_idx = cpu_mmu_index(env, false); | |
7315 | ||
7316 | /* This won't be crossing page boundaries */ | |
7317 | haddr = probe_read(env, vaddr, dline_size, mem_idx, GETPC()); | |
7318 | if (haddr) { | |
7319 | ||
7320 | ram_addr_t offset; | |
7321 | MemoryRegion *mr; | |
7322 | ||
7323 | /* RCU lock is already being held */ | |
7324 | mr = memory_region_from_host(haddr, &offset); | |
7325 | ||
7326 | if (mr) { | |
4dfe59d1 | 7327 | memory_region_writeback(mr, offset, dline_size); |
0d57b499 BM |
7328 | } |
7329 | } | |
7330 | } | |
7331 | ||
7332 | static const ARMCPRegInfo dcpop_reg[] = { | |
7333 | { .name = "DC_CVAP", .state = ARM_CP_STATE_AA64, | |
7334 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 1, | |
7335 | .access = PL0_W, .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END, | |
1bed4d2e | 7336 | .accessfn = aa64_cacheop_poc_access, .writefn = dccvap_writefn }, |
0d57b499 BM |
7337 | }; |
7338 | ||
7339 | static const ARMCPRegInfo dcpodp_reg[] = { | |
7340 | { .name = "DC_CVADP", .state = ARM_CP_STATE_AA64, | |
7341 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 1, | |
7342 | .access = PL0_W, .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END, | |
1bed4d2e | 7343 | .accessfn = aa64_cacheop_poc_access, .writefn = dccvap_writefn }, |
0d57b499 BM |
7344 | }; |
7345 | #endif /*CONFIG_USER_ONLY*/ | |
7346 | ||
4b779ceb RH |
7347 | static CPAccessResult access_aa64_tid5(CPUARMState *env, const ARMCPRegInfo *ri, |
7348 | bool isread) | |
7349 | { | |
7350 | if ((arm_current_el(env) < 2) && (arm_hcr_el2_eff(env) & HCR_TID5)) { | |
7351 | return CP_ACCESS_TRAP_EL2; | |
7352 | } | |
7353 | ||
7354 | return CP_ACCESS_OK; | |
7355 | } | |
7356 | ||
7357 | static CPAccessResult access_mte(CPUARMState *env, const ARMCPRegInfo *ri, | |
7358 | bool isread) | |
7359 | { | |
7360 | int el = arm_current_el(env); | |
7361 | ||
0da067f2 | 7362 | if (el < 2 && arm_is_el2_enabled(env)) { |
4301acd7 RH |
7363 | uint64_t hcr = arm_hcr_el2_eff(env); |
7364 | if (!(hcr & HCR_ATA) && (!(hcr & HCR_E2H) || !(hcr & HCR_TGE))) { | |
7365 | return CP_ACCESS_TRAP_EL2; | |
7366 | } | |
4b779ceb RH |
7367 | } |
7368 | if (el < 3 && | |
7369 | arm_feature(env, ARM_FEATURE_EL3) && | |
7370 | !(env->cp15.scr_el3 & SCR_ATA)) { | |
7371 | return CP_ACCESS_TRAP_EL3; | |
7372 | } | |
7373 | return CP_ACCESS_OK; | |
7374 | } | |
7375 | ||
7376 | static uint64_t tco_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
7377 | { | |
7378 | return env->pstate & PSTATE_TCO; | |
7379 | } | |
7380 | ||
7381 | static void tco_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) | |
7382 | { | |
7383 | env->pstate = (env->pstate & ~PSTATE_TCO) | (val & PSTATE_TCO); | |
7384 | } | |
7385 | ||
7386 | static const ARMCPRegInfo mte_reginfo[] = { | |
7387 | { .name = "TFSRE0_EL1", .state = ARM_CP_STATE_AA64, | |
7388 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 6, .opc2 = 1, | |
7389 | .access = PL1_RW, .accessfn = access_mte, | |
7390 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[0]) }, | |
7391 | { .name = "TFSR_EL1", .state = ARM_CP_STATE_AA64, | |
7392 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 6, .opc2 = 0, | |
7393 | .access = PL1_RW, .accessfn = access_mte, | |
7394 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[1]) }, | |
7395 | { .name = "TFSR_EL2", .state = ARM_CP_STATE_AA64, | |
7396 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 6, .opc2 = 0, | |
7397 | .access = PL2_RW, .accessfn = access_mte, | |
7398 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[2]) }, | |
7399 | { .name = "TFSR_EL3", .state = ARM_CP_STATE_AA64, | |
7400 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 6, .opc2 = 0, | |
7401 | .access = PL3_RW, | |
7402 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[3]) }, | |
7403 | { .name = "RGSR_EL1", .state = ARM_CP_STATE_AA64, | |
7404 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 5, | |
7405 | .access = PL1_RW, .accessfn = access_mte, | |
7406 | .fieldoffset = offsetof(CPUARMState, cp15.rgsr_el1) }, | |
7407 | { .name = "GCR_EL1", .state = ARM_CP_STATE_AA64, | |
7408 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 6, | |
7409 | .access = PL1_RW, .accessfn = access_mte, | |
7410 | .fieldoffset = offsetof(CPUARMState, cp15.gcr_el1) }, | |
7411 | { .name = "GMID_EL1", .state = ARM_CP_STATE_AA64, | |
7412 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 4, | |
7413 | .access = PL1_R, .accessfn = access_aa64_tid5, | |
7414 | .type = ARM_CP_CONST, .resetvalue = GMID_EL1_BS }, | |
7415 | { .name = "TCO", .state = ARM_CP_STATE_AA64, | |
7416 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 7, | |
7417 | .type = ARM_CP_NO_RAW, | |
7418 | .access = PL0_RW, .readfn = tco_read, .writefn = tco_write }, | |
5463df16 RH |
7419 | { .name = "DC_IGVAC", .state = ARM_CP_STATE_AA64, |
7420 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 3, | |
7421 | .type = ARM_CP_NOP, .access = PL1_W, | |
7422 | .accessfn = aa64_cacheop_poc_access }, | |
7423 | { .name = "DC_IGSW", .state = ARM_CP_STATE_AA64, | |
7424 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 4, | |
7425 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7426 | { .name = "DC_IGDVAC", .state = ARM_CP_STATE_AA64, | |
7427 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 5, | |
7428 | .type = ARM_CP_NOP, .access = PL1_W, | |
7429 | .accessfn = aa64_cacheop_poc_access }, | |
7430 | { .name = "DC_IGDSW", .state = ARM_CP_STATE_AA64, | |
7431 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 6, | |
7432 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7433 | { .name = "DC_CGSW", .state = ARM_CP_STATE_AA64, | |
7434 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 4, | |
7435 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7436 | { .name = "DC_CGDSW", .state = ARM_CP_STATE_AA64, | |
7437 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 6, | |
7438 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7439 | { .name = "DC_CIGSW", .state = ARM_CP_STATE_AA64, | |
7440 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 4, | |
7441 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7442 | { .name = "DC_CIGDSW", .state = ARM_CP_STATE_AA64, | |
7443 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 6, | |
7444 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
4b779ceb RH |
7445 | }; |
7446 | ||
7447 | static const ARMCPRegInfo mte_tco_ro_reginfo[] = { | |
7448 | { .name = "TCO", .state = ARM_CP_STATE_AA64, | |
7449 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 7, | |
7450 | .type = ARM_CP_CONST, .access = PL0_RW, }, | |
4b779ceb | 7451 | }; |
5463df16 RH |
7452 | |
7453 | static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = { | |
7454 | { .name = "DC_CGVAC", .state = ARM_CP_STATE_AA64, | |
7455 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 3, | |
7456 | .type = ARM_CP_NOP, .access = PL0_W, | |
7457 | .accessfn = aa64_cacheop_poc_access }, | |
7458 | { .name = "DC_CGDVAC", .state = ARM_CP_STATE_AA64, | |
7459 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 5, | |
7460 | .type = ARM_CP_NOP, .access = PL0_W, | |
7461 | .accessfn = aa64_cacheop_poc_access }, | |
7462 | { .name = "DC_CGVAP", .state = ARM_CP_STATE_AA64, | |
7463 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 3, | |
7464 | .type = ARM_CP_NOP, .access = PL0_W, | |
7465 | .accessfn = aa64_cacheop_poc_access }, | |
7466 | { .name = "DC_CGDVAP", .state = ARM_CP_STATE_AA64, | |
7467 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 5, | |
7468 | .type = ARM_CP_NOP, .access = PL0_W, | |
7469 | .accessfn = aa64_cacheop_poc_access }, | |
7470 | { .name = "DC_CGVADP", .state = ARM_CP_STATE_AA64, | |
7471 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 3, | |
7472 | .type = ARM_CP_NOP, .access = PL0_W, | |
7473 | .accessfn = aa64_cacheop_poc_access }, | |
7474 | { .name = "DC_CGDVADP", .state = ARM_CP_STATE_AA64, | |
7475 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 5, | |
7476 | .type = ARM_CP_NOP, .access = PL0_W, | |
7477 | .accessfn = aa64_cacheop_poc_access }, | |
7478 | { .name = "DC_CIGVAC", .state = ARM_CP_STATE_AA64, | |
7479 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 3, | |
7480 | .type = ARM_CP_NOP, .access = PL0_W, | |
7481 | .accessfn = aa64_cacheop_poc_access }, | |
7482 | { .name = "DC_CIGDVAC", .state = ARM_CP_STATE_AA64, | |
7483 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 5, | |
7484 | .type = ARM_CP_NOP, .access = PL0_W, | |
7485 | .accessfn = aa64_cacheop_poc_access }, | |
eb821168 RH |
7486 | { .name = "DC_GVA", .state = ARM_CP_STATE_AA64, |
7487 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 3, | |
7488 | .access = PL0_W, .type = ARM_CP_DC_GVA, | |
7489 | #ifndef CONFIG_USER_ONLY | |
7490 | /* Avoid overhead of an access check that always passes in user-mode */ | |
7491 | .accessfn = aa64_zva_access, | |
7492 | #endif | |
7493 | }, | |
7494 | { .name = "DC_GZVA", .state = ARM_CP_STATE_AA64, | |
7495 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 4, | |
7496 | .access = PL0_W, .type = ARM_CP_DC_GZVA, | |
7497 | #ifndef CONFIG_USER_ONLY | |
7498 | /* Avoid overhead of an access check that always passes in user-mode */ | |
7499 | .accessfn = aa64_zva_access, | |
7500 | #endif | |
7501 | }, | |
5463df16 RH |
7502 | }; |
7503 | ||
7cb1e618 RH |
7504 | static CPAccessResult access_scxtnum(CPUARMState *env, const ARMCPRegInfo *ri, |
7505 | bool isread) | |
7506 | { | |
7507 | uint64_t hcr = arm_hcr_el2_eff(env); | |
7508 | int el = arm_current_el(env); | |
7509 | ||
7510 | if (el == 0 && !((hcr & HCR_E2H) && (hcr & HCR_TGE))) { | |
7511 | if (env->cp15.sctlr_el[1] & SCTLR_TSCXT) { | |
7512 | if (hcr & HCR_TGE) { | |
7513 | return CP_ACCESS_TRAP_EL2; | |
7514 | } | |
7515 | return CP_ACCESS_TRAP; | |
7516 | } | |
7517 | } else if (el < 2 && (env->cp15.sctlr_el[2] & SCTLR_TSCXT)) { | |
7518 | return CP_ACCESS_TRAP_EL2; | |
7519 | } | |
7520 | if (el < 2 && arm_is_el2_enabled(env) && !(hcr & HCR_ENSCXT)) { | |
7521 | return CP_ACCESS_TRAP_EL2; | |
7522 | } | |
7523 | if (el < 3 | |
7524 | && arm_feature(env, ARM_FEATURE_EL3) | |
7525 | && !(env->cp15.scr_el3 & SCR_ENSCXT)) { | |
7526 | return CP_ACCESS_TRAP_EL3; | |
7527 | } | |
7528 | return CP_ACCESS_OK; | |
7529 | } | |
7530 | ||
7531 | static const ARMCPRegInfo scxtnum_reginfo[] = { | |
7532 | { .name = "SCXTNUM_EL0", .state = ARM_CP_STATE_AA64, | |
7533 | .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 7, | |
7534 | .access = PL0_RW, .accessfn = access_scxtnum, | |
7535 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[0]) }, | |
7536 | { .name = "SCXTNUM_EL1", .state = ARM_CP_STATE_AA64, | |
7537 | .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 7, | |
7538 | .access = PL1_RW, .accessfn = access_scxtnum, | |
7539 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[1]) }, | |
7540 | { .name = "SCXTNUM_EL2", .state = ARM_CP_STATE_AA64, | |
7541 | .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 7, | |
7542 | .access = PL2_RW, .accessfn = access_scxtnum, | |
7543 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[2]) }, | |
7544 | { .name = "SCXTNUM_EL3", .state = ARM_CP_STATE_AA64, | |
7545 | .opc0 = 3, .opc1 = 6, .crn = 13, .crm = 0, .opc2 = 7, | |
7546 | .access = PL3_RW, | |
7547 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[3]) }, | |
7548 | }; | |
7549 | #endif /* TARGET_AARCH64 */ | |
967aa94f | 7550 | |
cb570bd3 RH |
7551 | static CPAccessResult access_predinv(CPUARMState *env, const ARMCPRegInfo *ri, |
7552 | bool isread) | |
7553 | { | |
7554 | int el = arm_current_el(env); | |
7555 | ||
7556 | if (el == 0) { | |
7557 | uint64_t sctlr = arm_sctlr(env, el); | |
7558 | if (!(sctlr & SCTLR_EnRCTX)) { | |
7559 | return CP_ACCESS_TRAP; | |
7560 | } | |
7561 | } else if (el == 1) { | |
7562 | uint64_t hcr = arm_hcr_el2_eff(env); | |
7563 | if (hcr & HCR_NV) { | |
7564 | return CP_ACCESS_TRAP_EL2; | |
7565 | } | |
7566 | } | |
7567 | return CP_ACCESS_OK; | |
7568 | } | |
7569 | ||
7570 | static const ARMCPRegInfo predinv_reginfo[] = { | |
7571 | { .name = "CFP_RCTX", .state = ARM_CP_STATE_AA64, | |
7572 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 4, | |
7573 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7574 | { .name = "DVP_RCTX", .state = ARM_CP_STATE_AA64, | |
7575 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 5, | |
7576 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7577 | { .name = "CPP_RCTX", .state = ARM_CP_STATE_AA64, | |
7578 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 7, | |
7579 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7580 | /* | |
7581 | * Note the AArch32 opcodes have a different OPC1. | |
7582 | */ | |
7583 | { .name = "CFPRCTX", .state = ARM_CP_STATE_AA32, | |
7584 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 4, | |
7585 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7586 | { .name = "DVPRCTX", .state = ARM_CP_STATE_AA32, | |
7587 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 5, | |
7588 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7589 | { .name = "CPPRCTX", .state = ARM_CP_STATE_AA32, | |
7590 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 7, | |
7591 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
cb570bd3 RH |
7592 | }; |
7593 | ||
957e6155 PM |
7594 | static uint64_t ccsidr2_read(CPUARMState *env, const ARMCPRegInfo *ri) |
7595 | { | |
7596 | /* Read the high 32 bits of the current CCSIDR */ | |
7597 | return extract64(ccsidr_read(env, ri), 32, 32); | |
7598 | } | |
7599 | ||
7600 | static const ARMCPRegInfo ccsidr2_reginfo[] = { | |
7601 | { .name = "CCSIDR2", .state = ARM_CP_STATE_BOTH, | |
7602 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 2, | |
7603 | .access = PL1_R, | |
e2ce5fcd | 7604 | .accessfn = access_tid4, |
957e6155 | 7605 | .readfn = ccsidr2_read, .type = ARM_CP_NO_RAW }, |
957e6155 PM |
7606 | }; |
7607 | ||
6a4ef4e5 MZ |
7608 | static CPAccessResult access_aa64_tid3(CPUARMState *env, const ARMCPRegInfo *ri, |
7609 | bool isread) | |
7610 | { | |
7611 | if ((arm_current_el(env) < 2) && (arm_hcr_el2_eff(env) & HCR_TID3)) { | |
7612 | return CP_ACCESS_TRAP_EL2; | |
7613 | } | |
7614 | ||
7615 | return CP_ACCESS_OK; | |
7616 | } | |
7617 | ||
7618 | static CPAccessResult access_aa32_tid3(CPUARMState *env, const ARMCPRegInfo *ri, | |
7619 | bool isread) | |
7620 | { | |
7621 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
7622 | return access_aa64_tid3(env, ri, isread); | |
7623 | } | |
7624 | ||
7625 | return CP_ACCESS_OK; | |
7626 | } | |
7627 | ||
f96f3d5f MZ |
7628 | static CPAccessResult access_jazelle(CPUARMState *env, const ARMCPRegInfo *ri, |
7629 | bool isread) | |
7630 | { | |
7631 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TID0)) { | |
7632 | return CP_ACCESS_TRAP_EL2; | |
7633 | } | |
7634 | ||
7635 | return CP_ACCESS_OK; | |
7636 | } | |
7637 | ||
8e228c9e PM |
7638 | static CPAccessResult access_joscr_jmcr(CPUARMState *env, |
7639 | const ARMCPRegInfo *ri, bool isread) | |
7640 | { | |
7641 | /* | |
7642 | * HSTR.TJDBX traps JOSCR and JMCR accesses, but it exists only | |
7643 | * in v7A, not in v8A. | |
7644 | */ | |
7645 | if (!arm_feature(env, ARM_FEATURE_V8) && | |
7646 | arm_current_el(env) < 2 && !arm_is_secure_below_el3(env) && | |
7647 | (env->cp15.hstr_el2 & HSTR_TJDBX)) { | |
7648 | return CP_ACCESS_TRAP_EL2; | |
7649 | } | |
7650 | return CP_ACCESS_OK; | |
7651 | } | |
7652 | ||
f96f3d5f MZ |
7653 | static const ARMCPRegInfo jazelle_regs[] = { |
7654 | { .name = "JIDR", | |
7655 | .cp = 14, .crn = 0, .crm = 0, .opc1 = 7, .opc2 = 0, | |
7656 | .access = PL1_R, .accessfn = access_jazelle, | |
7657 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7658 | { .name = "JOSCR", | |
7659 | .cp = 14, .crn = 1, .crm = 0, .opc1 = 7, .opc2 = 0, | |
8e228c9e | 7660 | .accessfn = access_joscr_jmcr, |
f96f3d5f MZ |
7661 | .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, |
7662 | { .name = "JMCR", | |
7663 | .cp = 14, .crn = 2, .crm = 0, .opc1 = 7, .opc2 = 0, | |
8e228c9e | 7664 | .accessfn = access_joscr_jmcr, |
f96f3d5f | 7665 | .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, |
f96f3d5f MZ |
7666 | }; |
7667 | ||
52d18727 RH |
7668 | static const ARMCPRegInfo contextidr_el2 = { |
7669 | .name = "CONTEXTIDR_EL2", .state = ARM_CP_STATE_AA64, | |
7670 | .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 1, | |
7671 | .access = PL2_RW, | |
7672 | .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el[2]) | |
7673 | }; | |
7674 | ||
e2a1a461 | 7675 | static const ARMCPRegInfo vhe_reginfo[] = { |
ed30da8e RH |
7676 | { .name = "TTBR1_EL2", .state = ARM_CP_STATE_AA64, |
7677 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 1, | |
7678 | .access = PL2_RW, .writefn = vmsa_tcr_ttbr_el2_write, | |
7679 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr1_el[2]) }, | |
8c94b071 RH |
7680 | #ifndef CONFIG_USER_ONLY |
7681 | { .name = "CNTHV_CVAL_EL2", .state = ARM_CP_STATE_AA64, | |
7682 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 3, .opc2 = 2, | |
7683 | .fieldoffset = | |
7684 | offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYPVIRT].cval), | |
7685 | .type = ARM_CP_IO, .access = PL2_RW, | |
7686 | .writefn = gt_hv_cval_write, .raw_writefn = raw_write }, | |
7687 | { .name = "CNTHV_TVAL_EL2", .state = ARM_CP_STATE_BOTH, | |
7688 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 3, .opc2 = 0, | |
7689 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL2_RW, | |
7690 | .resetfn = gt_hv_timer_reset, | |
7691 | .readfn = gt_hv_tval_read, .writefn = gt_hv_tval_write }, | |
7692 | { .name = "CNTHV_CTL_EL2", .state = ARM_CP_STATE_BOTH, | |
7693 | .type = ARM_CP_IO, | |
7694 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 3, .opc2 = 1, | |
7695 | .access = PL2_RW, | |
7696 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYPVIRT].ctl), | |
7697 | .writefn = gt_hv_ctl_write, .raw_writefn = raw_write }, | |
bb5972e4 RH |
7698 | { .name = "CNTP_CTL_EL02", .state = ARM_CP_STATE_AA64, |
7699 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 2, .opc2 = 1, | |
7700 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7701 | .access = PL2_RW, .accessfn = e2h_access, | |
7702 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].ctl), | |
7703 | .writefn = gt_phys_ctl_write, .raw_writefn = raw_write }, | |
7704 | { .name = "CNTV_CTL_EL02", .state = ARM_CP_STATE_AA64, | |
7705 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 3, .opc2 = 1, | |
7706 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7707 | .access = PL2_RW, .accessfn = e2h_access, | |
7708 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].ctl), | |
7709 | .writefn = gt_virt_ctl_write, .raw_writefn = raw_write }, | |
7710 | { .name = "CNTP_TVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7711 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 2, .opc2 = 0, | |
7712 | .type = ARM_CP_NO_RAW | ARM_CP_IO | ARM_CP_ALIAS, | |
7713 | .access = PL2_RW, .accessfn = e2h_access, | |
7714 | .readfn = gt_phys_tval_read, .writefn = gt_phys_tval_write }, | |
7715 | { .name = "CNTV_TVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7716 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 3, .opc2 = 0, | |
7717 | .type = ARM_CP_NO_RAW | ARM_CP_IO | ARM_CP_ALIAS, | |
7718 | .access = PL2_RW, .accessfn = e2h_access, | |
7719 | .readfn = gt_virt_tval_read, .writefn = gt_virt_tval_write }, | |
7720 | { .name = "CNTP_CVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7721 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 2, .opc2 = 2, | |
7722 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7723 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].cval), | |
7724 | .access = PL2_RW, .accessfn = e2h_access, | |
7725 | .writefn = gt_phys_cval_write, .raw_writefn = raw_write }, | |
7726 | { .name = "CNTV_CVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7727 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 3, .opc2 = 2, | |
7728 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7729 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].cval), | |
7730 | .access = PL2_RW, .accessfn = e2h_access, | |
7731 | .writefn = gt_virt_cval_write, .raw_writefn = raw_write }, | |
8c94b071 | 7732 | #endif |
e2a1a461 RH |
7733 | }; |
7734 | ||
04b07d29 RH |
7735 | #ifndef CONFIG_USER_ONLY |
7736 | static const ARMCPRegInfo ats1e1_reginfo[] = { | |
3999d2d2 | 7737 | { .name = "AT_S1E1RP", .state = ARM_CP_STATE_AA64, |
04b07d29 RH |
7738 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, |
7739 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7740 | .writefn = ats_write64 }, | |
3999d2d2 | 7741 | { .name = "AT_S1E1WP", .state = ARM_CP_STATE_AA64, |
04b07d29 RH |
7742 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, |
7743 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7744 | .writefn = ats_write64 }, | |
04b07d29 RH |
7745 | }; |
7746 | ||
7747 | static const ARMCPRegInfo ats1cp_reginfo[] = { | |
7748 | { .name = "ATS1CPRP", | |
7749 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, | |
7750 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7751 | .writefn = ats_write }, | |
7752 | { .name = "ATS1CPWP", | |
7753 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, | |
7754 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7755 | .writefn = ats_write }, | |
04b07d29 RH |
7756 | }; |
7757 | #endif | |
7758 | ||
f6287c24 PM |
7759 | /* |
7760 | * ACTLR2 and HACTLR2 map to ACTLR_EL1[63:32] and | |
7761 | * ACTLR_EL2[63:32]. They exist only if the ID_MMFR4.AC2 field | |
7762 | * is non-zero, which is never for ARMv7, optionally in ARMv8 | |
7763 | * and mandatorily for ARMv8.2 and up. | |
7764 | * ACTLR2 is banked for S and NS if EL3 is AArch32. Since QEMU's | |
7765 | * implementation is RAZ/WI we can ignore this detail, as we | |
7766 | * do for ACTLR. | |
7767 | */ | |
7768 | static const ARMCPRegInfo actlr2_hactlr2_reginfo[] = { | |
7769 | { .name = "ACTLR2", .state = ARM_CP_STATE_AA32, | |
7770 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 3, | |
99602377 RH |
7771 | .access = PL1_RW, .accessfn = access_tacr, |
7772 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
f6287c24 PM |
7773 | { .name = "HACTLR2", .state = ARM_CP_STATE_AA32, |
7774 | .cp = 15, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 3, | |
7775 | .access = PL2_RW, .type = ARM_CP_CONST, | |
7776 | .resetvalue = 0 }, | |
f6287c24 PM |
7777 | }; |
7778 | ||
2ceb98c0 PM |
7779 | void register_cp_regs_for_features(ARMCPU *cpu) |
7780 | { | |
7781 | /* Register all the coprocessor registers based on feature bits */ | |
7782 | CPUARMState *env = &cpu->env; | |
7783 | if (arm_feature(env, ARM_FEATURE_M)) { | |
7784 | /* M profile has no coprocessor registers */ | |
7785 | return; | |
7786 | } | |
7787 | ||
e9aa6c21 | 7788 | define_arm_cp_regs(cpu, cp_reginfo); |
9449fdf6 | 7789 | if (!arm_feature(env, ARM_FEATURE_V8)) { |
9b37a28c FR |
7790 | /* |
7791 | * Must go early as it is full of wildcards that may be | |
9449fdf6 PM |
7792 | * overridden by later definitions. |
7793 | */ | |
7794 | define_arm_cp_regs(cpu, not_v8_cp_reginfo); | |
7795 | } | |
7796 | ||
7d57f408 | 7797 | if (arm_feature(env, ARM_FEATURE_V6)) { |
8515a092 PM |
7798 | /* The ID registers all have impdef reset values */ |
7799 | ARMCPRegInfo v6_idregs[] = { | |
0ff644a7 PM |
7800 | { .name = "ID_PFR0", .state = ARM_CP_STATE_BOTH, |
7801 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 0, | |
7802 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7803 | .accessfn = access_aa32_tid3, |
8a130a7b | 7804 | .resetvalue = cpu->isar.id_pfr0 }, |
9b37a28c FR |
7805 | /* |
7806 | * ID_PFR1 is not a plain ARM_CP_CONST because we don't know | |
96a8b92e PM |
7807 | * the value of the GIC field until after we define these regs. |
7808 | */ | |
0ff644a7 PM |
7809 | { .name = "ID_PFR1", .state = ARM_CP_STATE_BOTH, |
7810 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 1, | |
96a8b92e | 7811 | .access = PL1_R, .type = ARM_CP_NO_RAW, |
6a4ef4e5 | 7812 | .accessfn = access_aa32_tid3, |
96a8b92e PM |
7813 | .readfn = id_pfr1_read, |
7814 | .writefn = arm_cp_write_ignore }, | |
0ff644a7 PM |
7815 | { .name = "ID_DFR0", .state = ARM_CP_STATE_BOTH, |
7816 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 2, | |
7817 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7818 | .accessfn = access_aa32_tid3, |
a6179538 | 7819 | .resetvalue = cpu->isar.id_dfr0 }, |
0ff644a7 PM |
7820 | { .name = "ID_AFR0", .state = ARM_CP_STATE_BOTH, |
7821 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 3, | |
7822 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7823 | .accessfn = access_aa32_tid3, |
8515a092 | 7824 | .resetvalue = cpu->id_afr0 }, |
0ff644a7 PM |
7825 | { .name = "ID_MMFR0", .state = ARM_CP_STATE_BOTH, |
7826 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 4, | |
7827 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7828 | .accessfn = access_aa32_tid3, |
10054016 | 7829 | .resetvalue = cpu->isar.id_mmfr0 }, |
0ff644a7 PM |
7830 | { .name = "ID_MMFR1", .state = ARM_CP_STATE_BOTH, |
7831 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 5, | |
7832 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7833 | .accessfn = access_aa32_tid3, |
10054016 | 7834 | .resetvalue = cpu->isar.id_mmfr1 }, |
0ff644a7 PM |
7835 | { .name = "ID_MMFR2", .state = ARM_CP_STATE_BOTH, |
7836 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 6, | |
7837 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7838 | .accessfn = access_aa32_tid3, |
10054016 | 7839 | .resetvalue = cpu->isar.id_mmfr2 }, |
0ff644a7 PM |
7840 | { .name = "ID_MMFR3", .state = ARM_CP_STATE_BOTH, |
7841 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 7, | |
7842 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7843 | .accessfn = access_aa32_tid3, |
10054016 | 7844 | .resetvalue = cpu->isar.id_mmfr3 }, |
0ff644a7 PM |
7845 | { .name = "ID_ISAR0", .state = ARM_CP_STATE_BOTH, |
7846 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 0, | |
7847 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7848 | .accessfn = access_aa32_tid3, |
47576b94 | 7849 | .resetvalue = cpu->isar.id_isar0 }, |
0ff644a7 PM |
7850 | { .name = "ID_ISAR1", .state = ARM_CP_STATE_BOTH, |
7851 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 1, | |
7852 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7853 | .accessfn = access_aa32_tid3, |
47576b94 | 7854 | .resetvalue = cpu->isar.id_isar1 }, |
0ff644a7 PM |
7855 | { .name = "ID_ISAR2", .state = ARM_CP_STATE_BOTH, |
7856 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2, | |
7857 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7858 | .accessfn = access_aa32_tid3, |
47576b94 | 7859 | .resetvalue = cpu->isar.id_isar2 }, |
0ff644a7 PM |
7860 | { .name = "ID_ISAR3", .state = ARM_CP_STATE_BOTH, |
7861 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 3, | |
7862 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7863 | .accessfn = access_aa32_tid3, |
47576b94 | 7864 | .resetvalue = cpu->isar.id_isar3 }, |
0ff644a7 PM |
7865 | { .name = "ID_ISAR4", .state = ARM_CP_STATE_BOTH, |
7866 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 4, | |
7867 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7868 | .accessfn = access_aa32_tid3, |
47576b94 | 7869 | .resetvalue = cpu->isar.id_isar4 }, |
0ff644a7 PM |
7870 | { .name = "ID_ISAR5", .state = ARM_CP_STATE_BOTH, |
7871 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 5, | |
7872 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7873 | .accessfn = access_aa32_tid3, |
47576b94 | 7874 | .resetvalue = cpu->isar.id_isar5 }, |
e20d84c1 PM |
7875 | { .name = "ID_MMFR4", .state = ARM_CP_STATE_BOTH, |
7876 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 6, | |
7877 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7878 | .accessfn = access_aa32_tid3, |
10054016 | 7879 | .resetvalue = cpu->isar.id_mmfr4 }, |
802abf40 | 7880 | { .name = "ID_ISAR6", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
7881 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 7, |
7882 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7883 | .accessfn = access_aa32_tid3, |
47576b94 | 7884 | .resetvalue = cpu->isar.id_isar6 }, |
8515a092 PM |
7885 | }; |
7886 | define_arm_cp_regs(cpu, v6_idregs); | |
7d57f408 PM |
7887 | define_arm_cp_regs(cpu, v6_cp_reginfo); |
7888 | } else { | |
7889 | define_arm_cp_regs(cpu, not_v6_cp_reginfo); | |
7890 | } | |
4d31c596 PM |
7891 | if (arm_feature(env, ARM_FEATURE_V6K)) { |
7892 | define_arm_cp_regs(cpu, v6k_cp_reginfo); | |
7893 | } | |
5e5cf9e3 | 7894 | if (arm_feature(env, ARM_FEATURE_V7MP) && |
452a0955 | 7895 | !arm_feature(env, ARM_FEATURE_PMSA)) { |
995939a6 PM |
7896 | define_arm_cp_regs(cpu, v7mp_cp_reginfo); |
7897 | } | |
327dd510 AL |
7898 | if (arm_feature(env, ARM_FEATURE_V7VE)) { |
7899 | define_arm_cp_regs(cpu, pmovsset_cp_reginfo); | |
7900 | } | |
e9aa6c21 | 7901 | if (arm_feature(env, ARM_FEATURE_V7)) { |
776d4e5c | 7902 | ARMCPRegInfo clidr = { |
7da845b0 PM |
7903 | .name = "CLIDR", .state = ARM_CP_STATE_BOTH, |
7904 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 1, | |
630fcd4d | 7905 | .access = PL1_R, .type = ARM_CP_CONST, |
e2ce5fcd | 7906 | .accessfn = access_tid4, |
630fcd4d | 7907 | .resetvalue = cpu->clidr |
776d4e5c | 7908 | }; |
776d4e5c | 7909 | define_one_arm_cp_reg(cpu, &clidr); |
e9aa6c21 | 7910 | define_arm_cp_regs(cpu, v7_cp_reginfo); |
50300698 | 7911 | define_debug_regs(cpu); |
24183fb6 | 7912 | define_pmu_regs(cpu); |
7d57f408 PM |
7913 | } else { |
7914 | define_arm_cp_regs(cpu, not_v7_cp_reginfo); | |
e9aa6c21 | 7915 | } |
b0d2b7d0 | 7916 | if (arm_feature(env, ARM_FEATURE_V8)) { |
dde4d028 PM |
7917 | /* |
7918 | * v8 ID registers, which all have impdef reset values. | |
e20d84c1 PM |
7919 | * Note that within the ID register ranges the unused slots |
7920 | * must all RAZ, not UNDEF; future architecture versions may | |
7921 | * define new registers here. | |
dde4d028 PM |
7922 | * ID registers which are AArch64 views of the AArch32 ID registers |
7923 | * which already existed in v6 and v7 are handled elsewhere, | |
7924 | * in v6_idregs[]. | |
e20d84c1 | 7925 | */ |
dde4d028 | 7926 | int i; |
e60cef86 | 7927 | ARMCPRegInfo v8_idregs[] = { |
976b99b6 AB |
7928 | /* |
7929 | * ID_AA64PFR0_EL1 is not a plain ARM_CP_CONST in system | |
7930 | * emulation because we don't know the right value for the | |
7931 | * GIC field until after we define these regs. | |
96a8b92e | 7932 | */ |
e60cef86 PM |
7933 | { .name = "ID_AA64PFR0_EL1", .state = ARM_CP_STATE_AA64, |
7934 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 0, | |
976b99b6 AB |
7935 | .access = PL1_R, |
7936 | #ifdef CONFIG_USER_ONLY | |
7937 | .type = ARM_CP_CONST, | |
7938 | .resetvalue = cpu->isar.id_aa64pfr0 | |
7939 | #else | |
7940 | .type = ARM_CP_NO_RAW, | |
6a4ef4e5 | 7941 | .accessfn = access_aa64_tid3, |
96a8b92e | 7942 | .readfn = id_aa64pfr0_read, |
976b99b6 AB |
7943 | .writefn = arm_cp_write_ignore |
7944 | #endif | |
7945 | }, | |
e60cef86 PM |
7946 | { .name = "ID_AA64PFR1_EL1", .state = ARM_CP_STATE_AA64, |
7947 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 1, | |
7948 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7949 | .accessfn = access_aa64_tid3, |
47576b94 | 7950 | .resetvalue = cpu->isar.id_aa64pfr1}, |
e20d84c1 PM |
7951 | { .name = "ID_AA64PFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7952 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 2, | |
7953 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7954 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7955 | .resetvalue = 0 }, |
7956 | { .name = "ID_AA64PFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7957 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 3, | |
7958 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7959 | .accessfn = access_aa64_tid3, |
e20d84c1 | 7960 | .resetvalue = 0 }, |
9516d772 | 7961 | { .name = "ID_AA64ZFR0_EL1", .state = ARM_CP_STATE_AA64, |
e20d84c1 PM |
7962 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 4, |
7963 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7964 | .accessfn = access_aa64_tid3, |
2dc10fa2 | 7965 | .resetvalue = cpu->isar.id_aa64zfr0 }, |
414c54d5 | 7966 | { .name = "ID_AA64SMFR0_EL1", .state = ARM_CP_STATE_AA64, |
e20d84c1 PM |
7967 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 5, |
7968 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7969 | .accessfn = access_aa64_tid3, |
414c54d5 | 7970 | .resetvalue = cpu->isar.id_aa64smfr0 }, |
e20d84c1 PM |
7971 | { .name = "ID_AA64PFR6_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7972 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 6, | |
7973 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7974 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7975 | .resetvalue = 0 }, |
7976 | { .name = "ID_AA64PFR7_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7977 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 7, | |
7978 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7979 | .accessfn = access_aa64_tid3, |
e20d84c1 | 7980 | .resetvalue = 0 }, |
e60cef86 PM |
7981 | { .name = "ID_AA64DFR0_EL1", .state = ARM_CP_STATE_AA64, |
7982 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 0, | |
7983 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7984 | .accessfn = access_aa64_tid3, |
2a609df8 | 7985 | .resetvalue = cpu->isar.id_aa64dfr0 }, |
e60cef86 PM |
7986 | { .name = "ID_AA64DFR1_EL1", .state = ARM_CP_STATE_AA64, |
7987 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 1, | |
7988 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7989 | .accessfn = access_aa64_tid3, |
2a609df8 | 7990 | .resetvalue = cpu->isar.id_aa64dfr1 }, |
e20d84c1 PM |
7991 | { .name = "ID_AA64DFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7992 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 2, | |
7993 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7994 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7995 | .resetvalue = 0 }, |
7996 | { .name = "ID_AA64DFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7997 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 3, | |
7998 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7999 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8000 | .resetvalue = 0 }, |
e60cef86 PM |
8001 | { .name = "ID_AA64AFR0_EL1", .state = ARM_CP_STATE_AA64, |
8002 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 4, | |
8003 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8004 | .accessfn = access_aa64_tid3, |
e60cef86 PM |
8005 | .resetvalue = cpu->id_aa64afr0 }, |
8006 | { .name = "ID_AA64AFR1_EL1", .state = ARM_CP_STATE_AA64, | |
8007 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 5, | |
8008 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8009 | .accessfn = access_aa64_tid3, |
e60cef86 | 8010 | .resetvalue = cpu->id_aa64afr1 }, |
e20d84c1 PM |
8011 | { .name = "ID_AA64AFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
8012 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 6, | |
8013 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8014 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8015 | .resetvalue = 0 }, |
8016 | { .name = "ID_AA64AFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8017 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 7, | |
8018 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8019 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8020 | .resetvalue = 0 }, |
e60cef86 PM |
8021 | { .name = "ID_AA64ISAR0_EL1", .state = ARM_CP_STATE_AA64, |
8022 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 0, | |
8023 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8024 | .accessfn = access_aa64_tid3, |
47576b94 | 8025 | .resetvalue = cpu->isar.id_aa64isar0 }, |
e60cef86 PM |
8026 | { .name = "ID_AA64ISAR1_EL1", .state = ARM_CP_STATE_AA64, |
8027 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 1, | |
8028 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8029 | .accessfn = access_aa64_tid3, |
47576b94 | 8030 | .resetvalue = cpu->isar.id_aa64isar1 }, |
e20d84c1 PM |
8031 | { .name = "ID_AA64ISAR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
8032 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 2, | |
8033 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8034 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8035 | .resetvalue = 0 }, |
8036 | { .name = "ID_AA64ISAR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8037 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 3, | |
8038 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8039 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8040 | .resetvalue = 0 }, |
8041 | { .name = "ID_AA64ISAR4_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8042 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 4, | |
8043 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8044 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8045 | .resetvalue = 0 }, |
8046 | { .name = "ID_AA64ISAR5_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8047 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 5, | |
8048 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8049 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8050 | .resetvalue = 0 }, |
8051 | { .name = "ID_AA64ISAR6_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8052 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 6, | |
8053 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8054 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8055 | .resetvalue = 0 }, |
8056 | { .name = "ID_AA64ISAR7_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8057 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 7, | |
8058 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8059 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8060 | .resetvalue = 0 }, |
e60cef86 PM |
8061 | { .name = "ID_AA64MMFR0_EL1", .state = ARM_CP_STATE_AA64, |
8062 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 0, | |
8063 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8064 | .accessfn = access_aa64_tid3, |
3dc91ddb | 8065 | .resetvalue = cpu->isar.id_aa64mmfr0 }, |
e60cef86 PM |
8066 | { .name = "ID_AA64MMFR1_EL1", .state = ARM_CP_STATE_AA64, |
8067 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 1, | |
8068 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8069 | .accessfn = access_aa64_tid3, |
3dc91ddb | 8070 | .resetvalue = cpu->isar.id_aa64mmfr1 }, |
64761e10 | 8071 | { .name = "ID_AA64MMFR2_EL1", .state = ARM_CP_STATE_AA64, |
e20d84c1 PM |
8072 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 2, |
8073 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8074 | .accessfn = access_aa64_tid3, |
64761e10 | 8075 | .resetvalue = cpu->isar.id_aa64mmfr2 }, |
e20d84c1 PM |
8076 | { .name = "ID_AA64MMFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
8077 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 3, | |
8078 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8079 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8080 | .resetvalue = 0 }, |
8081 | { .name = "ID_AA64MMFR4_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8082 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 4, | |
8083 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8084 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8085 | .resetvalue = 0 }, |
8086 | { .name = "ID_AA64MMFR5_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8087 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 5, | |
8088 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8089 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8090 | .resetvalue = 0 }, |
8091 | { .name = "ID_AA64MMFR6_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8092 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 6, | |
8093 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8094 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8095 | .resetvalue = 0 }, |
8096 | { .name = "ID_AA64MMFR7_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8097 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 7, | |
8098 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8099 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8100 | .resetvalue = 0 }, |
a50c0f51 PM |
8101 | { .name = "MVFR0_EL1", .state = ARM_CP_STATE_AA64, |
8102 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 0, | |
8103 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8104 | .accessfn = access_aa64_tid3, |
47576b94 | 8105 | .resetvalue = cpu->isar.mvfr0 }, |
a50c0f51 PM |
8106 | { .name = "MVFR1_EL1", .state = ARM_CP_STATE_AA64, |
8107 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 1, | |
8108 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8109 | .accessfn = access_aa64_tid3, |
47576b94 | 8110 | .resetvalue = cpu->isar.mvfr1 }, |
a50c0f51 PM |
8111 | { .name = "MVFR2_EL1", .state = ARM_CP_STATE_AA64, |
8112 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 2, | |
8113 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8114 | .accessfn = access_aa64_tid3, |
47576b94 | 8115 | .resetvalue = cpu->isar.mvfr2 }, |
dde4d028 PM |
8116 | /* |
8117 | * "0, c0, c3, {0,1,2}" are the encodings corresponding to | |
8118 | * AArch64 MVFR[012]_EL1. Define the STATE_AA32 encoding | |
8119 | * as RAZ, since it is in the "reserved for future ID | |
8120 | * registers, RAZ" part of the AArch32 encoding space. | |
8121 | */ | |
8122 | { .name = "RES_0_C0_C3_0", .state = ARM_CP_STATE_AA32, | |
8123 | .cp = 15, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 0, | |
8124 | .access = PL1_R, .type = ARM_CP_CONST, | |
8125 | .accessfn = access_aa64_tid3, | |
8126 | .resetvalue = 0 }, | |
8127 | { .name = "RES_0_C0_C3_1", .state = ARM_CP_STATE_AA32, | |
8128 | .cp = 15, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 1, | |
8129 | .access = PL1_R, .type = ARM_CP_CONST, | |
8130 | .accessfn = access_aa64_tid3, | |
8131 | .resetvalue = 0 }, | |
8132 | { .name = "RES_0_C0_C3_2", .state = ARM_CP_STATE_AA32, | |
8133 | .cp = 15, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 2, | |
8134 | .access = PL1_R, .type = ARM_CP_CONST, | |
8135 | .accessfn = access_aa64_tid3, | |
8136 | .resetvalue = 0 }, | |
8137 | /* | |
8138 | * Other encodings in "0, c0, c3, ..." are STATE_BOTH because | |
8139 | * they're also RAZ for AArch64, and in v8 are gradually | |
8140 | * being filled with AArch64-view-of-AArch32-ID-register | |
8141 | * for new ID registers. | |
8142 | */ | |
8143 | { .name = "RES_0_C0_C3_3", .state = ARM_CP_STATE_BOTH, | |
e20d84c1 PM |
8144 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 3, |
8145 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8146 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8147 | .resetvalue = 0 }, |
1d51bc96 | 8148 | { .name = "ID_PFR2", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8149 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 4, |
8150 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8151 | .accessfn = access_aa64_tid3, |
1d51bc96 | 8152 | .resetvalue = cpu->isar.id_pfr2 }, |
d22c5649 | 8153 | { .name = "ID_DFR1", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8154 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 5, |
8155 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8156 | .accessfn = access_aa64_tid3, |
d22c5649 | 8157 | .resetvalue = cpu->isar.id_dfr1 }, |
32957aad | 8158 | { .name = "ID_MMFR5", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8159 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 6, |
8160 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8161 | .accessfn = access_aa64_tid3, |
32957aad | 8162 | .resetvalue = cpu->isar.id_mmfr5 }, |
dde4d028 | 8163 | { .name = "RES_0_C0_C3_7", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8164 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 7, |
8165 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8166 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8167 | .resetvalue = 0 }, |
4054bfa9 AF |
8168 | { .name = "PMCEID0", .state = ARM_CP_STATE_AA32, |
8169 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 6, | |
8170 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
cad86737 | 8171 | .resetvalue = extract64(cpu->pmceid0, 0, 32) }, |
4054bfa9 AF |
8172 | { .name = "PMCEID0_EL0", .state = ARM_CP_STATE_AA64, |
8173 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 6, | |
8174 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
8175 | .resetvalue = cpu->pmceid0 }, | |
8176 | { .name = "PMCEID1", .state = ARM_CP_STATE_AA32, | |
8177 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 7, | |
8178 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
cad86737 | 8179 | .resetvalue = extract64(cpu->pmceid1, 0, 32) }, |
4054bfa9 AF |
8180 | { .name = "PMCEID1_EL0", .state = ARM_CP_STATE_AA64, |
8181 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 7, | |
8182 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
8183 | .resetvalue = cpu->pmceid1 }, | |
e60cef86 | 8184 | }; |
6c5c0fec | 8185 | #ifdef CONFIG_USER_ONLY |
10b0220e | 8186 | static const ARMCPRegUserSpaceInfo v8_user_idregs[] = { |
6c5c0fec | 8187 | { .name = "ID_AA64PFR0_EL1", |
bc6bd20e ZS |
8188 | .exported_bits = R_ID_AA64PFR0_FP_MASK | |
8189 | R_ID_AA64PFR0_ADVSIMD_MASK | | |
8190 | R_ID_AA64PFR0_SVE_MASK | | |
8191 | R_ID_AA64PFR0_DIT_MASK, | |
8192 | .fixed_bits = (0x1u << R_ID_AA64PFR0_EL0_SHIFT) | | |
8193 | (0x1u << R_ID_AA64PFR0_EL1_SHIFT) }, | |
6c5c0fec | 8194 | { .name = "ID_AA64PFR1_EL1", |
bc6bd20e ZS |
8195 | .exported_bits = R_ID_AA64PFR1_BT_MASK | |
8196 | R_ID_AA64PFR1_SSBS_MASK | | |
8197 | R_ID_AA64PFR1_MTE_MASK | | |
8198 | R_ID_AA64PFR1_SME_MASK }, | |
d040242e | 8199 | { .name = "ID_AA64PFR*_EL1_RESERVED", |
bc6bd20e ZS |
8200 | .is_glob = true }, |
8201 | { .name = "ID_AA64ZFR0_EL1", | |
8202 | .exported_bits = R_ID_AA64ZFR0_SVEVER_MASK | | |
8203 | R_ID_AA64ZFR0_AES_MASK | | |
8204 | R_ID_AA64ZFR0_BITPERM_MASK | | |
8205 | R_ID_AA64ZFR0_BFLOAT16_MASK | | |
8206 | R_ID_AA64ZFR0_SHA3_MASK | | |
8207 | R_ID_AA64ZFR0_SM4_MASK | | |
8208 | R_ID_AA64ZFR0_I8MM_MASK | | |
8209 | R_ID_AA64ZFR0_F32MM_MASK | | |
8210 | R_ID_AA64ZFR0_F64MM_MASK }, | |
8211 | { .name = "ID_AA64SMFR0_EL1", | |
8212 | .exported_bits = R_ID_AA64SMFR0_F32F32_MASK | | |
8213 | R_ID_AA64SMFR0_B16F32_MASK | | |
8214 | R_ID_AA64SMFR0_F16F32_MASK | | |
8215 | R_ID_AA64SMFR0_I8I32_MASK | | |
8216 | R_ID_AA64SMFR0_F64F64_MASK | | |
8217 | R_ID_AA64SMFR0_I16I64_MASK | | |
8218 | R_ID_AA64SMFR0_FA64_MASK }, | |
6c5c0fec | 8219 | { .name = "ID_AA64MMFR0_EL1", |
bc6bd20e ZS |
8220 | .exported_bits = R_ID_AA64MMFR0_ECV_MASK, |
8221 | .fixed_bits = (0xfu << R_ID_AA64MMFR0_TGRAN64_SHIFT) | | |
8222 | (0xfu << R_ID_AA64MMFR0_TGRAN4_SHIFT) }, | |
8223 | { .name = "ID_AA64MMFR1_EL1", | |
8224 | .exported_bits = R_ID_AA64MMFR1_AFP_MASK }, | |
8225 | { .name = "ID_AA64MMFR2_EL1", | |
8226 | .exported_bits = R_ID_AA64MMFR2_AT_MASK }, | |
d040242e | 8227 | { .name = "ID_AA64MMFR*_EL1_RESERVED", |
bc6bd20e | 8228 | .is_glob = true }, |
6c5c0fec | 8229 | { .name = "ID_AA64DFR0_EL1", |
bc6bd20e ZS |
8230 | .fixed_bits = (0x6u << R_ID_AA64DFR0_DEBUGVER_SHIFT) }, |
8231 | { .name = "ID_AA64DFR1_EL1" }, | |
d040242e | 8232 | { .name = "ID_AA64DFR*_EL1_RESERVED", |
bc6bd20e | 8233 | .is_glob = true }, |
d040242e | 8234 | { .name = "ID_AA64AFR*", |
bc6bd20e | 8235 | .is_glob = true }, |
6c5c0fec | 8236 | { .name = "ID_AA64ISAR0_EL1", |
bc6bd20e ZS |
8237 | .exported_bits = R_ID_AA64ISAR0_AES_MASK | |
8238 | R_ID_AA64ISAR0_SHA1_MASK | | |
8239 | R_ID_AA64ISAR0_SHA2_MASK | | |
8240 | R_ID_AA64ISAR0_CRC32_MASK | | |
8241 | R_ID_AA64ISAR0_ATOMIC_MASK | | |
8242 | R_ID_AA64ISAR0_RDM_MASK | | |
8243 | R_ID_AA64ISAR0_SHA3_MASK | | |
8244 | R_ID_AA64ISAR0_SM3_MASK | | |
8245 | R_ID_AA64ISAR0_SM4_MASK | | |
8246 | R_ID_AA64ISAR0_DP_MASK | | |
8247 | R_ID_AA64ISAR0_FHM_MASK | | |
8248 | R_ID_AA64ISAR0_TS_MASK | | |
8249 | R_ID_AA64ISAR0_RNDR_MASK }, | |
6c5c0fec | 8250 | { .name = "ID_AA64ISAR1_EL1", |
bc6bd20e ZS |
8251 | .exported_bits = R_ID_AA64ISAR1_DPB_MASK | |
8252 | R_ID_AA64ISAR1_APA_MASK | | |
8253 | R_ID_AA64ISAR1_API_MASK | | |
8254 | R_ID_AA64ISAR1_JSCVT_MASK | | |
8255 | R_ID_AA64ISAR1_FCMA_MASK | | |
8256 | R_ID_AA64ISAR1_LRCPC_MASK | | |
8257 | R_ID_AA64ISAR1_GPA_MASK | | |
8258 | R_ID_AA64ISAR1_GPI_MASK | | |
8259 | R_ID_AA64ISAR1_FRINTTS_MASK | | |
8260 | R_ID_AA64ISAR1_SB_MASK | | |
8261 | R_ID_AA64ISAR1_BF16_MASK | | |
8262 | R_ID_AA64ISAR1_DGH_MASK | | |
8263 | R_ID_AA64ISAR1_I8MM_MASK }, | |
8264 | { .name = "ID_AA64ISAR2_EL1", | |
8265 | .exported_bits = R_ID_AA64ISAR2_WFXT_MASK | | |
8266 | R_ID_AA64ISAR2_RPRES_MASK | | |
8267 | R_ID_AA64ISAR2_GPA3_MASK | | |
8268 | R_ID_AA64ISAR2_APA3_MASK }, | |
d040242e | 8269 | { .name = "ID_AA64ISAR*_EL1_RESERVED", |
bc6bd20e | 8270 | .is_glob = true }, |
6c5c0fec AB |
8271 | }; |
8272 | modify_arm_cp_regs(v8_idregs, v8_user_idregs); | |
8273 | #endif | |
be8e8128 GB |
8274 | /* RVBAR_EL1 is only implemented if EL1 is the highest EL */ |
8275 | if (!arm_feature(env, ARM_FEATURE_EL3) && | |
8276 | !arm_feature(env, ARM_FEATURE_EL2)) { | |
8277 | ARMCPRegInfo rvbar = { | |
910e4f24 | 8278 | .name = "RVBAR_EL1", .state = ARM_CP_STATE_BOTH, |
be8e8128 | 8279 | .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, |
4a7319b7 EI |
8280 | .access = PL1_R, |
8281 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
be8e8128 GB |
8282 | }; |
8283 | define_one_arm_cp_reg(cpu, &rvbar); | |
8284 | } | |
e60cef86 | 8285 | define_arm_cp_regs(cpu, v8_idregs); |
b0d2b7d0 | 8286 | define_arm_cp_regs(cpu, v8_cp_reginfo); |
dde4d028 PM |
8287 | |
8288 | for (i = 4; i < 16; i++) { | |
8289 | /* | |
8290 | * Encodings in "0, c0, {c4-c7}, {0-7}" are RAZ for AArch32. | |
8291 | * For pre-v8 cores there are RAZ patterns for these in | |
8292 | * id_pre_v8_midr_cp_reginfo[]; for v8 we do that here. | |
8293 | * v8 extends the "must RAZ" part of the ID register space | |
8294 | * to also cover c0, 0, c{8-15}, {0-7}. | |
8295 | * These are STATE_AA32 because in the AArch64 sysreg space | |
8296 | * c4-c7 is where the AArch64 ID registers live (and we've | |
8297 | * already defined those in v8_idregs[]), and c8-c15 are not | |
8298 | * "must RAZ" for AArch64. | |
8299 | */ | |
8300 | g_autofree char *name = g_strdup_printf("RES_0_C0_C%d_X", i); | |
8301 | ARMCPRegInfo v8_aa32_raz_idregs = { | |
8302 | .name = name, | |
8303 | .state = ARM_CP_STATE_AA32, | |
8304 | .cp = 15, .opc1 = 0, .crn = 0, .crm = i, .opc2 = CP_ANY, | |
8305 | .access = PL1_R, .type = ARM_CP_CONST, | |
8306 | .accessfn = access_aa64_tid3, | |
8307 | .resetvalue = 0 }; | |
8308 | define_one_arm_cp_reg(cpu, &v8_aa32_raz_idregs); | |
8309 | } | |
b0d2b7d0 | 8310 | } |
99a90811 RH |
8311 | |
8312 | /* | |
8313 | * Register the base EL2 cpregs. | |
8314 | * Pre v8, these registers are implemented only as part of the | |
8315 | * Virtualization Extensions (EL2 present). Beginning with v8, | |
8316 | * if EL2 is missing but EL3 is enabled, mostly these become | |
8317 | * RES0 from EL3, with some specific exceptions. | |
8318 | */ | |
8319 | if (arm_feature(env, ARM_FEATURE_EL2) | |
8320 | || (arm_feature(env, ARM_FEATURE_EL3) | |
8321 | && arm_feature(env, ARM_FEATURE_V8))) { | |
f0d574d6 | 8322 | uint64_t vmpidr_def = mpidr_read_val(env); |
731de9e6 EI |
8323 | ARMCPRegInfo vpidr_regs[] = { |
8324 | { .name = "VPIDR", .state = ARM_CP_STATE_AA32, | |
8325 | .cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0, | |
8326 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
696ba377 RH |
8327 | .resetvalue = cpu->midr, |
8328 | .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_C_NZ, | |
36476562 | 8329 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vpidr_el2) }, |
731de9e6 EI |
8330 | { .name = "VPIDR_EL2", .state = ARM_CP_STATE_AA64, |
8331 | .opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0, | |
8332 | .access = PL2_RW, .resetvalue = cpu->midr, | |
696ba377 | 8333 | .type = ARM_CP_EL3_NO_EL2_C_NZ, |
731de9e6 | 8334 | .fieldoffset = offsetof(CPUARMState, cp15.vpidr_el2) }, |
f0d574d6 EI |
8335 | { .name = "VMPIDR", .state = ARM_CP_STATE_AA32, |
8336 | .cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5, | |
8337 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
696ba377 RH |
8338 | .resetvalue = vmpidr_def, |
8339 | .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_C_NZ, | |
36476562 | 8340 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vmpidr_el2) }, |
f0d574d6 EI |
8341 | { .name = "VMPIDR_EL2", .state = ARM_CP_STATE_AA64, |
8342 | .opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5, | |
696ba377 RH |
8343 | .access = PL2_RW, .resetvalue = vmpidr_def, |
8344 | .type = ARM_CP_EL3_NO_EL2_C_NZ, | |
f0d574d6 | 8345 | .fieldoffset = offsetof(CPUARMState, cp15.vmpidr_el2) }, |
731de9e6 | 8346 | }; |
24526bb9 PM |
8347 | /* |
8348 | * The only field of MDCR_EL2 that has a defined architectural reset | |
8349 | * value is MDCR_EL2.HPMN which should reset to the value of PMCR_EL0.N. | |
8350 | */ | |
8351 | ARMCPRegInfo mdcr_el2 = { | |
7f4fbfb5 | 8352 | .name = "MDCR_EL2", .state = ARM_CP_STATE_BOTH, .type = ARM_CP_IO, |
24526bb9 | 8353 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 1, |
01765386 | 8354 | .writefn = mdcr_el2_write, |
24526bb9 PM |
8355 | .access = PL2_RW, .resetvalue = pmu_num_counters(env), |
8356 | .fieldoffset = offsetof(CPUARMState, cp15.mdcr_el2), | |
8357 | }; | |
8358 | define_one_arm_cp_reg(cpu, &mdcr_el2); | |
731de9e6 | 8359 | define_arm_cp_regs(cpu, vpidr_regs); |
4771cd01 | 8360 | define_arm_cp_regs(cpu, el2_cp_reginfo); |
ce4afed8 PM |
8361 | if (arm_feature(env, ARM_FEATURE_V8)) { |
8362 | define_arm_cp_regs(cpu, el2_v8_cp_reginfo); | |
8363 | } | |
e9152ee9 RDC |
8364 | if (cpu_isar_feature(aa64_sel2, cpu)) { |
8365 | define_arm_cp_regs(cpu, el2_sec_cp_reginfo); | |
8366 | } | |
be8e8128 GB |
8367 | /* RVBAR_EL2 is only implemented if EL2 is the highest EL */ |
8368 | if (!arm_feature(env, ARM_FEATURE_EL3)) { | |
910e4f24 TR |
8369 | ARMCPRegInfo rvbar[] = { |
8370 | { | |
8371 | .name = "RVBAR_EL2", .state = ARM_CP_STATE_AA64, | |
8372 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 1, | |
8373 | .access = PL2_R, | |
8374 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
8375 | }, | |
8376 | { .name = "RVBAR", .type = ARM_CP_ALIAS, | |
8377 | .cp = 15, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, | |
8378 | .access = PL2_R, | |
8379 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
8380 | }, | |
be8e8128 | 8381 | }; |
910e4f24 | 8382 | define_arm_cp_regs(cpu, rvbar); |
be8e8128 | 8383 | } |
3b685ba7 | 8384 | } |
99a90811 RH |
8385 | |
8386 | /* Register the base EL3 cpregs. */ | |
81547d66 | 8387 | if (arm_feature(env, ARM_FEATURE_EL3)) { |
0f1a3b24 | 8388 | define_arm_cp_regs(cpu, el3_cp_reginfo); |
e24fdd23 PM |
8389 | ARMCPRegInfo el3_regs[] = { |
8390 | { .name = "RVBAR_EL3", .state = ARM_CP_STATE_AA64, | |
8391 | .opc0 = 3, .opc1 = 6, .crn = 12, .crm = 0, .opc2 = 1, | |
4a7319b7 EI |
8392 | .access = PL3_R, |
8393 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
8394 | }, | |
e24fdd23 PM |
8395 | { .name = "SCTLR_EL3", .state = ARM_CP_STATE_AA64, |
8396 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 0, .opc2 = 0, | |
8397 | .access = PL3_RW, | |
8398 | .raw_writefn = raw_write, .writefn = sctlr_write, | |
8399 | .fieldoffset = offsetof(CPUARMState, cp15.sctlr_el[3]), | |
8400 | .resetvalue = cpu->reset_sctlr }, | |
be8e8128 | 8401 | }; |
e24fdd23 PM |
8402 | |
8403 | define_arm_cp_regs(cpu, el3_regs); | |
81547d66 | 8404 | } |
9b37a28c FR |
8405 | /* |
8406 | * The behaviour of NSACR is sufficiently various that we don't | |
2f027fc5 PM |
8407 | * try to describe it in a single reginfo: |
8408 | * if EL3 is 64 bit, then trap to EL3 from S EL1, | |
8409 | * reads as constant 0xc00 from NS EL1 and NS EL2 | |
8410 | * if EL3 is 32 bit, then RW at EL3, RO at NS EL1 and NS EL2 | |
8411 | * if v7 without EL3, register doesn't exist | |
8412 | * if v8 without EL3, reads as constant 0xc00 from NS EL1 and NS EL2 | |
8413 | */ | |
8414 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
8415 | if (arm_feature(env, ARM_FEATURE_AARCH64)) { | |
10b0220e | 8416 | static const ARMCPRegInfo nsacr = { |
2f027fc5 PM |
8417 | .name = "NSACR", .type = ARM_CP_CONST, |
8418 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 2, | |
8419 | .access = PL1_RW, .accessfn = nsacr_access, | |
8420 | .resetvalue = 0xc00 | |
8421 | }; | |
8422 | define_one_arm_cp_reg(cpu, &nsacr); | |
8423 | } else { | |
10b0220e | 8424 | static const ARMCPRegInfo nsacr = { |
2f027fc5 PM |
8425 | .name = "NSACR", |
8426 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 2, | |
8427 | .access = PL3_RW | PL1_R, | |
8428 | .resetvalue = 0, | |
8429 | .fieldoffset = offsetof(CPUARMState, cp15.nsacr) | |
8430 | }; | |
8431 | define_one_arm_cp_reg(cpu, &nsacr); | |
8432 | } | |
8433 | } else { | |
8434 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
10b0220e | 8435 | static const ARMCPRegInfo nsacr = { |
2f027fc5 PM |
8436 | .name = "NSACR", .type = ARM_CP_CONST, |
8437 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 2, | |
8438 | .access = PL1_R, | |
8439 | .resetvalue = 0xc00 | |
8440 | }; | |
8441 | define_one_arm_cp_reg(cpu, &nsacr); | |
8442 | } | |
8443 | } | |
8444 | ||
452a0955 | 8445 | if (arm_feature(env, ARM_FEATURE_PMSA)) { |
6cb0b013 PC |
8446 | if (arm_feature(env, ARM_FEATURE_V6)) { |
8447 | /* PMSAv6 not implemented */ | |
8448 | assert(arm_feature(env, ARM_FEATURE_V7)); | |
8449 | define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo); | |
8450 | define_arm_cp_regs(cpu, pmsav7_cp_reginfo); | |
8451 | } else { | |
8452 | define_arm_cp_regs(cpu, pmsav5_cp_reginfo); | |
8453 | } | |
18032bec | 8454 | } else { |
8e5d75c9 | 8455 | define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo); |
18032bec | 8456 | define_arm_cp_regs(cpu, vmsa_cp_reginfo); |
4036b7d1 PM |
8457 | /* TTCBR2 is introduced with ARMv8.2-AA32HPD. */ |
8458 | if (cpu_isar_feature(aa32_hpd, cpu)) { | |
ab638a32 RH |
8459 | define_one_arm_cp_reg(cpu, &ttbcr2_reginfo); |
8460 | } | |
18032bec | 8461 | } |
c326b979 PM |
8462 | if (arm_feature(env, ARM_FEATURE_THUMB2EE)) { |
8463 | define_arm_cp_regs(cpu, t2ee_cp_reginfo); | |
8464 | } | |
6cc7a3ae PM |
8465 | if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) { |
8466 | define_arm_cp_regs(cpu, generic_timer_cp_reginfo); | |
8467 | } | |
4a501606 PM |
8468 | if (arm_feature(env, ARM_FEATURE_VAPA)) { |
8469 | define_arm_cp_regs(cpu, vapa_cp_reginfo); | |
8470 | } | |
c4804214 PM |
8471 | if (arm_feature(env, ARM_FEATURE_CACHE_TEST_CLEAN)) { |
8472 | define_arm_cp_regs(cpu, cache_test_clean_cp_reginfo); | |
8473 | } | |
8474 | if (arm_feature(env, ARM_FEATURE_CACHE_DIRTY_REG)) { | |
8475 | define_arm_cp_regs(cpu, cache_dirty_status_cp_reginfo); | |
8476 | } | |
8477 | if (arm_feature(env, ARM_FEATURE_CACHE_BLOCK_OPS)) { | |
8478 | define_arm_cp_regs(cpu, cache_block_ops_cp_reginfo); | |
8479 | } | |
18032bec PM |
8480 | if (arm_feature(env, ARM_FEATURE_OMAPCP)) { |
8481 | define_arm_cp_regs(cpu, omap_cp_reginfo); | |
8482 | } | |
34f90529 PM |
8483 | if (arm_feature(env, ARM_FEATURE_STRONGARM)) { |
8484 | define_arm_cp_regs(cpu, strongarm_cp_reginfo); | |
8485 | } | |
1047b9d7 PM |
8486 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { |
8487 | define_arm_cp_regs(cpu, xscale_cp_reginfo); | |
8488 | } | |
8489 | if (arm_feature(env, ARM_FEATURE_DUMMY_C15_REGS)) { | |
8490 | define_arm_cp_regs(cpu, dummy_c15_cp_reginfo); | |
8491 | } | |
7ac681cf PM |
8492 | if (arm_feature(env, ARM_FEATURE_LPAE)) { |
8493 | define_arm_cp_regs(cpu, lpae_cp_reginfo); | |
8494 | } | |
873b73c0 | 8495 | if (cpu_isar_feature(aa32_jazelle, cpu)) { |
f96f3d5f MZ |
8496 | define_arm_cp_regs(cpu, jazelle_regs); |
8497 | } | |
9b37a28c FR |
8498 | /* |
8499 | * Slightly awkwardly, the OMAP and StrongARM cores need all of | |
7884849c PM |
8500 | * cp15 crn=0 to be writes-ignored, whereas for other cores they should |
8501 | * be read-only (ie write causes UNDEF exception). | |
8502 | */ | |
8503 | { | |
00a29f3d | 8504 | ARMCPRegInfo id_pre_v8_midr_cp_reginfo[] = { |
9b37a28c FR |
8505 | /* |
8506 | * Pre-v8 MIDR space. | |
00a29f3d | 8507 | * Note that the MIDR isn't a simple constant register because |
7884849c PM |
8508 | * of the TI925 behaviour where writes to another register can |
8509 | * cause the MIDR value to change. | |
97ce8d61 PC |
8510 | * |
8511 | * Unimplemented registers in the c15 0 0 0 space default to | |
8512 | * MIDR. Define MIDR first as this entire space, then CTR, TCMTR | |
8513 | * and friends override accordingly. | |
7884849c PM |
8514 | */ |
8515 | { .name = "MIDR", | |
97ce8d61 | 8516 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = CP_ANY, |
7884849c | 8517 | .access = PL1_R, .resetvalue = cpu->midr, |
d4e6df63 | 8518 | .writefn = arm_cp_write_ignore, .raw_writefn = raw_write, |
731de9e6 | 8519 | .readfn = midr_read, |
97ce8d61 PC |
8520 | .fieldoffset = offsetof(CPUARMState, cp15.c0_cpuid), |
8521 | .type = ARM_CP_OVERRIDE }, | |
7884849c PM |
8522 | /* crn = 0 op1 = 0 crm = 3..7 : currently unassigned; we RAZ. */ |
8523 | { .name = "DUMMY", | |
8524 | .cp = 15, .crn = 0, .crm = 3, .opc1 = 0, .opc2 = CP_ANY, | |
8525 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8526 | { .name = "DUMMY", | |
8527 | .cp = 15, .crn = 0, .crm = 4, .opc1 = 0, .opc2 = CP_ANY, | |
8528 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8529 | { .name = "DUMMY", | |
8530 | .cp = 15, .crn = 0, .crm = 5, .opc1 = 0, .opc2 = CP_ANY, | |
8531 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8532 | { .name = "DUMMY", | |
8533 | .cp = 15, .crn = 0, .crm = 6, .opc1 = 0, .opc2 = CP_ANY, | |
8534 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8535 | { .name = "DUMMY", | |
8536 | .cp = 15, .crn = 0, .crm = 7, .opc1 = 0, .opc2 = CP_ANY, | |
8537 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7884849c | 8538 | }; |
00a29f3d | 8539 | ARMCPRegInfo id_v8_midr_cp_reginfo[] = { |
00a29f3d PM |
8540 | { .name = "MIDR_EL1", .state = ARM_CP_STATE_BOTH, |
8541 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 0, | |
731de9e6 EI |
8542 | .access = PL1_R, .type = ARM_CP_NO_RAW, .resetvalue = cpu->midr, |
8543 | .fieldoffset = offsetof(CPUARMState, cp15.c0_cpuid), | |
8544 | .readfn = midr_read }, | |
c7f786ab | 8545 | /* crn = 0 op1 = 0 crm = 0 op2 = 7 : AArch32 aliases of MIDR */ |
ac00c79f SF |
8546 | { .name = "MIDR", .type = ARM_CP_ALIAS | ARM_CP_CONST, |
8547 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 7, | |
8548 | .access = PL1_R, .resetvalue = cpu->midr }, | |
00a29f3d PM |
8549 | { .name = "REVIDR_EL1", .state = ARM_CP_STATE_BOTH, |
8550 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 6, | |
93fbc983 MZ |
8551 | .access = PL1_R, |
8552 | .accessfn = access_aa64_tid1, | |
8553 | .type = ARM_CP_CONST, .resetvalue = cpu->revidr }, | |
00a29f3d | 8554 | }; |
c7f786ab TR |
8555 | ARMCPRegInfo id_v8_midr_alias_cp_reginfo = { |
8556 | .name = "MIDR", .type = ARM_CP_ALIAS | ARM_CP_CONST, | |
8557 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 4, | |
8558 | .access = PL1_R, .resetvalue = cpu->midr | |
8559 | }; | |
00a29f3d PM |
8560 | ARMCPRegInfo id_cp_reginfo[] = { |
8561 | /* These are common to v8 and pre-v8 */ | |
8562 | { .name = "CTR", | |
8563 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 1, | |
630fcd4d MZ |
8564 | .access = PL1_R, .accessfn = ctr_el0_access, |
8565 | .type = ARM_CP_CONST, .resetvalue = cpu->ctr }, | |
00a29f3d PM |
8566 | { .name = "CTR_EL0", .state = ARM_CP_STATE_AA64, |
8567 | .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 0, .crm = 0, | |
8568 | .access = PL0_R, .accessfn = ctr_el0_access, | |
8569 | .type = ARM_CP_CONST, .resetvalue = cpu->ctr }, | |
8570 | /* TCMTR and TLBTR exist in v8 but have no 64-bit versions */ | |
8571 | { .name = "TCMTR", | |
8572 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 2, | |
93fbc983 MZ |
8573 | .access = PL1_R, |
8574 | .accessfn = access_aa32_tid1, | |
8575 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
00a29f3d | 8576 | }; |
8085ce63 PC |
8577 | /* TLBTR is specific to VMSA */ |
8578 | ARMCPRegInfo id_tlbtr_reginfo = { | |
8579 | .name = "TLBTR", | |
8580 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 3, | |
93fbc983 MZ |
8581 | .access = PL1_R, |
8582 | .accessfn = access_aa32_tid1, | |
8583 | .type = ARM_CP_CONST, .resetvalue = 0, | |
8085ce63 | 8584 | }; |
3281af81 PC |
8585 | /* MPUIR is specific to PMSA V6+ */ |
8586 | ARMCPRegInfo id_mpuir_reginfo = { | |
8587 | .name = "MPUIR", | |
8588 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 4, | |
8589 | .access = PL1_R, .type = ARM_CP_CONST, | |
8590 | .resetvalue = cpu->pmsav7_dregion << 8 | |
8591 | }; | |
761c4642 TR |
8592 | /* HMPUIR is specific to PMSA V8 */ |
8593 | ARMCPRegInfo id_hmpuir_reginfo = { | |
8594 | .name = "HMPUIR", | |
8595 | .cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 4, | |
8596 | .access = PL2_R, .type = ARM_CP_CONST, | |
8597 | .resetvalue = cpu->pmsav8r_hdregion | |
8598 | }; | |
10b0220e | 8599 | static const ARMCPRegInfo crn0_wi_reginfo = { |
7884849c PM |
8600 | .name = "CRN0_WI", .cp = 15, .crn = 0, .crm = CP_ANY, |
8601 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_W, | |
8602 | .type = ARM_CP_NOP | ARM_CP_OVERRIDE | |
8603 | }; | |
6c5c0fec | 8604 | #ifdef CONFIG_USER_ONLY |
10b0220e | 8605 | static const ARMCPRegUserSpaceInfo id_v8_user_midr_cp_reginfo[] = { |
6c5c0fec | 8606 | { .name = "MIDR_EL1", |
bc6bd20e ZS |
8607 | .exported_bits = R_MIDR_EL1_REVISION_MASK | |
8608 | R_MIDR_EL1_PARTNUM_MASK | | |
8609 | R_MIDR_EL1_ARCHITECTURE_MASK | | |
8610 | R_MIDR_EL1_VARIANT_MASK | | |
8611 | R_MIDR_EL1_IMPLEMENTER_MASK }, | |
8612 | { .name = "REVIDR_EL1" }, | |
6c5c0fec AB |
8613 | }; |
8614 | modify_arm_cp_regs(id_v8_midr_cp_reginfo, id_v8_user_midr_cp_reginfo); | |
8615 | #endif | |
7884849c PM |
8616 | if (arm_feature(env, ARM_FEATURE_OMAPCP) || |
8617 | arm_feature(env, ARM_FEATURE_STRONGARM)) { | |
5809ac57 | 8618 | size_t i; |
9b37a28c FR |
8619 | /* |
8620 | * Register the blanket "writes ignored" value first to cover the | |
a703eda1 PC |
8621 | * whole space. Then update the specific ID registers to allow write |
8622 | * access, so that they ignore writes rather than causing them to | |
8623 | * UNDEF. | |
7884849c PM |
8624 | */ |
8625 | define_one_arm_cp_reg(cpu, &crn0_wi_reginfo); | |
5809ac57 RH |
8626 | for (i = 0; i < ARRAY_SIZE(id_pre_v8_midr_cp_reginfo); ++i) { |
8627 | id_pre_v8_midr_cp_reginfo[i].access = PL1_RW; | |
00a29f3d | 8628 | } |
5809ac57 RH |
8629 | for (i = 0; i < ARRAY_SIZE(id_cp_reginfo); ++i) { |
8630 | id_cp_reginfo[i].access = PL1_RW; | |
7884849c | 8631 | } |
10006112 | 8632 | id_mpuir_reginfo.access = PL1_RW; |
3281af81 | 8633 | id_tlbtr_reginfo.access = PL1_RW; |
7884849c | 8634 | } |
00a29f3d PM |
8635 | if (arm_feature(env, ARM_FEATURE_V8)) { |
8636 | define_arm_cp_regs(cpu, id_v8_midr_cp_reginfo); | |
c7f786ab TR |
8637 | if (!arm_feature(env, ARM_FEATURE_PMSA)) { |
8638 | define_one_arm_cp_reg(cpu, &id_v8_midr_alias_cp_reginfo); | |
8639 | } | |
00a29f3d PM |
8640 | } else { |
8641 | define_arm_cp_regs(cpu, id_pre_v8_midr_cp_reginfo); | |
8642 | } | |
a703eda1 | 8643 | define_arm_cp_regs(cpu, id_cp_reginfo); |
452a0955 | 8644 | if (!arm_feature(env, ARM_FEATURE_PMSA)) { |
8085ce63 | 8645 | define_one_arm_cp_reg(cpu, &id_tlbtr_reginfo); |
761c4642 TR |
8646 | } else if (arm_feature(env, ARM_FEATURE_PMSA) && |
8647 | arm_feature(env, ARM_FEATURE_V8)) { | |
8648 | uint32_t i = 0; | |
8649 | char *tmp_string; | |
8650 | ||
8651 | define_one_arm_cp_reg(cpu, &id_mpuir_reginfo); | |
8652 | define_one_arm_cp_reg(cpu, &id_hmpuir_reginfo); | |
8653 | define_arm_cp_regs(cpu, pmsav8r_cp_reginfo); | |
8654 | ||
8655 | /* Register alias is only valid for first 32 indexes */ | |
8656 | for (i = 0; i < MIN(cpu->pmsav7_dregion, 32); ++i) { | |
8657 | uint8_t crm = 0b1000 | extract32(i, 1, 3); | |
8658 | uint8_t opc1 = extract32(i, 4, 1); | |
8659 | uint8_t opc2 = extract32(i, 0, 1) << 2; | |
8660 | ||
8661 | tmp_string = g_strdup_printf("PRBAR%u", i); | |
8662 | ARMCPRegInfo tmp_prbarn_reginfo = { | |
8663 | .name = tmp_string, .type = ARM_CP_ALIAS | ARM_CP_NO_RAW, | |
8664 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8665 | .access = PL1_RW, .resetvalue = 0, | |
8666 | .accessfn = access_tvm_trvm, | |
8667 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8668 | }; | |
8669 | define_one_arm_cp_reg(cpu, &tmp_prbarn_reginfo); | |
8670 | g_free(tmp_string); | |
8671 | ||
8672 | opc2 = extract32(i, 0, 1) << 2 | 0x1; | |
8673 | tmp_string = g_strdup_printf("PRLAR%u", i); | |
8674 | ARMCPRegInfo tmp_prlarn_reginfo = { | |
8675 | .name = tmp_string, .type = ARM_CP_ALIAS | ARM_CP_NO_RAW, | |
8676 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8677 | .access = PL1_RW, .resetvalue = 0, | |
8678 | .accessfn = access_tvm_trvm, | |
8679 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8680 | }; | |
8681 | define_one_arm_cp_reg(cpu, &tmp_prlarn_reginfo); | |
8682 | g_free(tmp_string); | |
8683 | } | |
8684 | ||
8685 | /* Register alias is only valid for first 32 indexes */ | |
8686 | for (i = 0; i < MIN(cpu->pmsav8r_hdregion, 32); ++i) { | |
8687 | uint8_t crm = 0b1000 | extract32(i, 1, 3); | |
8688 | uint8_t opc1 = 0b100 | extract32(i, 4, 1); | |
8689 | uint8_t opc2 = extract32(i, 0, 1) << 2; | |
8690 | ||
8691 | tmp_string = g_strdup_printf("HPRBAR%u", i); | |
8692 | ARMCPRegInfo tmp_hprbarn_reginfo = { | |
8693 | .name = tmp_string, | |
8694 | .type = ARM_CP_NO_RAW, | |
8695 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8696 | .access = PL2_RW, .resetvalue = 0, | |
8697 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8698 | }; | |
8699 | define_one_arm_cp_reg(cpu, &tmp_hprbarn_reginfo); | |
8700 | g_free(tmp_string); | |
8701 | ||
8702 | opc2 = extract32(i, 0, 1) << 2 | 0x1; | |
8703 | tmp_string = g_strdup_printf("HPRLAR%u", i); | |
8704 | ARMCPRegInfo tmp_hprlarn_reginfo = { | |
8705 | .name = tmp_string, | |
8706 | .type = ARM_CP_NO_RAW, | |
8707 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8708 | .access = PL2_RW, .resetvalue = 0, | |
8709 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8710 | }; | |
8711 | define_one_arm_cp_reg(cpu, &tmp_hprlarn_reginfo); | |
8712 | g_free(tmp_string); | |
8713 | } | |
3281af81 PC |
8714 | } else if (arm_feature(env, ARM_FEATURE_V7)) { |
8715 | define_one_arm_cp_reg(cpu, &id_mpuir_reginfo); | |
8085ce63 | 8716 | } |
7884849c PM |
8717 | } |
8718 | ||
97ce8d61 | 8719 | if (arm_feature(env, ARM_FEATURE_MPIDR)) { |
52264166 AB |
8720 | ARMCPRegInfo mpidr_cp_reginfo[] = { |
8721 | { .name = "MPIDR_EL1", .state = ARM_CP_STATE_BOTH, | |
8722 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 5, | |
8723 | .access = PL1_R, .readfn = mpidr_read, .type = ARM_CP_NO_RAW }, | |
52264166 AB |
8724 | }; |
8725 | #ifdef CONFIG_USER_ONLY | |
10b0220e | 8726 | static const ARMCPRegUserSpaceInfo mpidr_user_cp_reginfo[] = { |
52264166 AB |
8727 | { .name = "MPIDR_EL1", |
8728 | .fixed_bits = 0x0000000080000000 }, | |
52264166 AB |
8729 | }; |
8730 | modify_arm_cp_regs(mpidr_cp_reginfo, mpidr_user_cp_reginfo); | |
8731 | #endif | |
97ce8d61 PC |
8732 | define_arm_cp_regs(cpu, mpidr_cp_reginfo); |
8733 | } | |
8734 | ||
2771db27 | 8735 | if (arm_feature(env, ARM_FEATURE_AUXCR)) { |
834a6c69 PM |
8736 | ARMCPRegInfo auxcr_reginfo[] = { |
8737 | { .name = "ACTLR_EL1", .state = ARM_CP_STATE_BOTH, | |
8738 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 1, | |
99602377 RH |
8739 | .access = PL1_RW, .accessfn = access_tacr, |
8740 | .type = ARM_CP_CONST, .resetvalue = cpu->reset_auxcr }, | |
834a6c69 PM |
8741 | { .name = "ACTLR_EL2", .state = ARM_CP_STATE_BOTH, |
8742 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 1, | |
8743 | .access = PL2_RW, .type = ARM_CP_CONST, | |
8744 | .resetvalue = 0 }, | |
8745 | { .name = "ACTLR_EL3", .state = ARM_CP_STATE_AA64, | |
8746 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 0, .opc2 = 1, | |
8747 | .access = PL3_RW, .type = ARM_CP_CONST, | |
8748 | .resetvalue = 0 }, | |
2771db27 | 8749 | }; |
834a6c69 | 8750 | define_arm_cp_regs(cpu, auxcr_reginfo); |
f6287c24 PM |
8751 | if (cpu_isar_feature(aa32_ac2, cpu)) { |
8752 | define_arm_cp_regs(cpu, actlr2_hactlr2_reginfo); | |
0e0456ab | 8753 | } |
2771db27 PM |
8754 | } |
8755 | ||
d8ba780b | 8756 | if (arm_feature(env, ARM_FEATURE_CBAR)) { |
d56974af LM |
8757 | /* |
8758 | * CBAR is IMPDEF, but common on Arm Cortex-A implementations. | |
8759 | * There are two flavours: | |
8760 | * (1) older 32-bit only cores have a simple 32-bit CBAR | |
8761 | * (2) 64-bit cores have a 64-bit CBAR visible to AArch64, plus a | |
8762 | * 32-bit register visible to AArch32 at a different encoding | |
8763 | * to the "flavour 1" register and with the bits rearranged to | |
8764 | * be able to squash a 64-bit address into the 32-bit view. | |
8765 | * We distinguish the two via the ARM_FEATURE_AARCH64 flag, but | |
8766 | * in future if we support AArch32-only configs of some of the | |
8767 | * AArch64 cores we might need to add a specific feature flag | |
8768 | * to indicate cores with "flavour 2" CBAR. | |
8769 | */ | |
f318cec6 PM |
8770 | if (arm_feature(env, ARM_FEATURE_AARCH64)) { |
8771 | /* 32 bit view is [31:18] 0...0 [43:32]. */ | |
8772 | uint32_t cbar32 = (extract64(cpu->reset_cbar, 18, 14) << 18) | |
8773 | | extract64(cpu->reset_cbar, 32, 12); | |
8774 | ARMCPRegInfo cbar_reginfo[] = { | |
8775 | { .name = "CBAR", | |
8776 | .type = ARM_CP_CONST, | |
d56974af LM |
8777 | .cp = 15, .crn = 15, .crm = 3, .opc1 = 1, .opc2 = 0, |
8778 | .access = PL1_R, .resetvalue = cbar32 }, | |
f318cec6 PM |
8779 | { .name = "CBAR_EL1", .state = ARM_CP_STATE_AA64, |
8780 | .type = ARM_CP_CONST, | |
8781 | .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 3, .opc2 = 0, | |
d56974af | 8782 | .access = PL1_R, .resetvalue = cpu->reset_cbar }, |
f318cec6 PM |
8783 | }; |
8784 | /* We don't implement a r/w 64 bit CBAR currently */ | |
8785 | assert(arm_feature(env, ARM_FEATURE_CBAR_RO)); | |
8786 | define_arm_cp_regs(cpu, cbar_reginfo); | |
8787 | } else { | |
8788 | ARMCPRegInfo cbar = { | |
8789 | .name = "CBAR", | |
8790 | .cp = 15, .crn = 15, .crm = 0, .opc1 = 4, .opc2 = 0, | |
04215eb1 | 8791 | .access = PL1_R | PL3_W, .resetvalue = cpu->reset_cbar, |
f318cec6 PM |
8792 | .fieldoffset = offsetof(CPUARMState, |
8793 | cp15.c15_config_base_address) | |
8794 | }; | |
8795 | if (arm_feature(env, ARM_FEATURE_CBAR_RO)) { | |
8796 | cbar.access = PL1_R; | |
8797 | cbar.fieldoffset = 0; | |
8798 | cbar.type = ARM_CP_CONST; | |
8799 | } | |
8800 | define_one_arm_cp_reg(cpu, &cbar); | |
8801 | } | |
d8ba780b PC |
8802 | } |
8803 | ||
91db4642 | 8804 | if (arm_feature(env, ARM_FEATURE_VBAR)) { |
10b0220e | 8805 | static const ARMCPRegInfo vbar_cp_reginfo[] = { |
91db4642 CLG |
8806 | { .name = "VBAR", .state = ARM_CP_STATE_BOTH, |
8807 | .opc0 = 3, .crn = 12, .crm = 0, .opc1 = 0, .opc2 = 0, | |
8808 | .access = PL1_RW, .writefn = vbar_write, | |
8809 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.vbar_s), | |
8810 | offsetof(CPUARMState, cp15.vbar_ns) }, | |
8811 | .resetvalue = 0 }, | |
91db4642 CLG |
8812 | }; |
8813 | define_arm_cp_regs(cpu, vbar_cp_reginfo); | |
8814 | } | |
8815 | ||
2771db27 PM |
8816 | /* Generic registers whose values depend on the implementation */ |
8817 | { | |
8818 | ARMCPRegInfo sctlr = { | |
5ebafdf3 | 8819 | .name = "SCTLR", .state = ARM_CP_STATE_BOTH, |
137feaa9 | 8820 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 0, |
84929218 | 8821 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
137feaa9 FA |
8822 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.sctlr_s), |
8823 | offsetof(CPUARMState, cp15.sctlr_ns) }, | |
d4e6df63 PM |
8824 | .writefn = sctlr_write, .resetvalue = cpu->reset_sctlr, |
8825 | .raw_writefn = raw_write, | |
2771db27 PM |
8826 | }; |
8827 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { | |
9b37a28c FR |
8828 | /* |
8829 | * Normally we would always end the TB on an SCTLR write, but Linux | |
2771db27 PM |
8830 | * arch/arm/mach-pxa/sleep.S expects two instructions following |
8831 | * an MMU enable to execute from cache. Imitate this behaviour. | |
8832 | */ | |
8833 | sctlr.type |= ARM_CP_SUPPRESS_TB_END; | |
8834 | } | |
8835 | define_one_arm_cp_reg(cpu, &sctlr); | |
761c4642 TR |
8836 | |
8837 | if (arm_feature(env, ARM_FEATURE_PMSA) && | |
8838 | arm_feature(env, ARM_FEATURE_V8)) { | |
8839 | ARMCPRegInfo vsctlr = { | |
8840 | .name = "VSCTLR", .state = ARM_CP_STATE_AA32, | |
8841 | .cp = 15, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 0, | |
8842 | .access = PL2_RW, .resetvalue = 0x0, | |
8843 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vsctlr), | |
8844 | }; | |
8845 | define_one_arm_cp_reg(cpu, &vsctlr); | |
8846 | } | |
2771db27 | 8847 | } |
5be5e8ed | 8848 | |
2d7137c1 | 8849 | if (cpu_isar_feature(aa64_lor, cpu)) { |
2d7137c1 RH |
8850 | define_arm_cp_regs(cpu, lor_reginfo); |
8851 | } | |
220f508f RH |
8852 | if (cpu_isar_feature(aa64_pan, cpu)) { |
8853 | define_one_arm_cp_reg(cpu, &pan_reginfo); | |
8854 | } | |
04b07d29 RH |
8855 | #ifndef CONFIG_USER_ONLY |
8856 | if (cpu_isar_feature(aa64_ats1e1, cpu)) { | |
8857 | define_arm_cp_regs(cpu, ats1e1_reginfo); | |
8858 | } | |
8859 | if (cpu_isar_feature(aa32_ats1e1, cpu)) { | |
8860 | define_arm_cp_regs(cpu, ats1cp_reginfo); | |
8861 | } | |
8862 | #endif | |
9eeb7a1c RH |
8863 | if (cpu_isar_feature(aa64_uao, cpu)) { |
8864 | define_one_arm_cp_reg(cpu, &uao_reginfo); | |
8865 | } | |
2d7137c1 | 8866 | |
dc8b1853 RC |
8867 | if (cpu_isar_feature(aa64_dit, cpu)) { |
8868 | define_one_arm_cp_reg(cpu, &dit_reginfo); | |
8869 | } | |
f2f68a78 RC |
8870 | if (cpu_isar_feature(aa64_ssbs, cpu)) { |
8871 | define_one_arm_cp_reg(cpu, &ssbs_reginfo); | |
8872 | } | |
58e93b48 RH |
8873 | if (cpu_isar_feature(any_ras, cpu)) { |
8874 | define_arm_cp_regs(cpu, minimal_ras_reginfo); | |
8875 | } | |
dc8b1853 | 8876 | |
52d18727 RH |
8877 | if (cpu_isar_feature(aa64_vh, cpu) || |
8878 | cpu_isar_feature(aa64_debugv8p2, cpu)) { | |
8879 | define_one_arm_cp_reg(cpu, &contextidr_el2); | |
8880 | } | |
e2a1a461 RH |
8881 | if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { |
8882 | define_arm_cp_regs(cpu, vhe_reginfo); | |
8883 | } | |
8884 | ||
cd208a1c | 8885 | if (cpu_isar_feature(aa64_sve, cpu)) { |
60360d82 | 8886 | define_arm_cp_regs(cpu, zcr_reginfo); |
5be5e8ed | 8887 | } |
967aa94f | 8888 | |
5814d587 RH |
8889 | if (cpu_isar_feature(aa64_hcx, cpu)) { |
8890 | define_one_arm_cp_reg(cpu, &hcrx_el2_reginfo); | |
8891 | } | |
8892 | ||
967aa94f | 8893 | #ifdef TARGET_AARCH64 |
9e5ec745 RH |
8894 | if (cpu_isar_feature(aa64_sme, cpu)) { |
8895 | define_arm_cp_regs(cpu, sme_reginfo); | |
8896 | } | |
967aa94f RH |
8897 | if (cpu_isar_feature(aa64_pauth, cpu)) { |
8898 | define_arm_cp_regs(cpu, pauth_reginfo); | |
8899 | } | |
de390645 RH |
8900 | if (cpu_isar_feature(aa64_rndr, cpu)) { |
8901 | define_arm_cp_regs(cpu, rndr_reginfo); | |
8902 | } | |
84940ed8 RC |
8903 | if (cpu_isar_feature(aa64_tlbirange, cpu)) { |
8904 | define_arm_cp_regs(cpu, tlbirange_reginfo); | |
8905 | } | |
7113d618 RC |
8906 | if (cpu_isar_feature(aa64_tlbios, cpu)) { |
8907 | define_arm_cp_regs(cpu, tlbios_reginfo); | |
8908 | } | |
0d57b499 BM |
8909 | #ifndef CONFIG_USER_ONLY |
8910 | /* Data Cache clean instructions up to PoP */ | |
8911 | if (cpu_isar_feature(aa64_dcpop, cpu)) { | |
8912 | define_one_arm_cp_reg(cpu, dcpop_reg); | |
8913 | ||
8914 | if (cpu_isar_feature(aa64_dcpodp, cpu)) { | |
8915 | define_one_arm_cp_reg(cpu, dcpodp_reg); | |
8916 | } | |
8917 | } | |
8918 | #endif /*CONFIG_USER_ONLY*/ | |
4b779ceb RH |
8919 | |
8920 | /* | |
8921 | * If full MTE is enabled, add all of the system registers. | |
8922 | * If only "instructions available at EL0" are enabled, | |
8923 | * then define only a RAZ/WI version of PSTATE.TCO. | |
8924 | */ | |
8925 | if (cpu_isar_feature(aa64_mte, cpu)) { | |
8926 | define_arm_cp_regs(cpu, mte_reginfo); | |
5463df16 | 8927 | define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo); |
4b779ceb RH |
8928 | } else if (cpu_isar_feature(aa64_mte_insn_reg, cpu)) { |
8929 | define_arm_cp_regs(cpu, mte_tco_ro_reginfo); | |
5463df16 | 8930 | define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo); |
4b779ceb | 8931 | } |
7cb1e618 RH |
8932 | |
8933 | if (cpu_isar_feature(aa64_scxtnum, cpu)) { | |
8934 | define_arm_cp_regs(cpu, scxtnum_reginfo); | |
8935 | } | |
967aa94f | 8936 | #endif |
cb570bd3 | 8937 | |
22e57073 | 8938 | if (cpu_isar_feature(any_predinv, cpu)) { |
cb570bd3 RH |
8939 | define_arm_cp_regs(cpu, predinv_reginfo); |
8940 | } | |
e2cce18f | 8941 | |
957e6155 PM |
8942 | if (cpu_isar_feature(any_ccidx, cpu)) { |
8943 | define_arm_cp_regs(cpu, ccsidr2_reginfo); | |
8944 | } | |
8945 | ||
e2cce18f RH |
8946 | #ifndef CONFIG_USER_ONLY |
8947 | /* | |
8948 | * Register redirections and aliases must be done last, | |
8949 | * after the registers from the other extensions have been defined. | |
8950 | */ | |
8951 | if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { | |
8952 | define_arm_vh_e2h_redirects_aliases(cpu); | |
8953 | } | |
8954 | #endif | |
2ceb98c0 PM |
8955 | } |
8956 | ||
777dc784 PM |
8957 | /* Sort alphabetically by type name, except for "any". */ |
8958 | static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b) | |
5adb4839 | 8959 | { |
777dc784 PM |
8960 | ObjectClass *class_a = (ObjectClass *)a; |
8961 | ObjectClass *class_b = (ObjectClass *)b; | |
8962 | const char *name_a, *name_b; | |
5adb4839 | 8963 | |
777dc784 PM |
8964 | name_a = object_class_get_name(class_a); |
8965 | name_b = object_class_get_name(class_b); | |
51492fd1 | 8966 | if (strcmp(name_a, "any-" TYPE_ARM_CPU) == 0) { |
777dc784 | 8967 | return 1; |
51492fd1 | 8968 | } else if (strcmp(name_b, "any-" TYPE_ARM_CPU) == 0) { |
777dc784 PM |
8969 | return -1; |
8970 | } else { | |
8971 | return strcmp(name_a, name_b); | |
5adb4839 PB |
8972 | } |
8973 | } | |
8974 | ||
777dc784 | 8975 | static void arm_cpu_list_entry(gpointer data, gpointer user_data) |
40f137e1 | 8976 | { |
777dc784 | 8977 | ObjectClass *oc = data; |
977c33ba | 8978 | CPUClass *cc = CPU_CLASS(oc); |
51492fd1 AF |
8979 | const char *typename; |
8980 | char *name; | |
3371d272 | 8981 | |
51492fd1 AF |
8982 | typename = object_class_get_name(oc); |
8983 | name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_ARM_CPU)); | |
977c33ba DB |
8984 | if (cc->deprecation_note) { |
8985 | qemu_printf(" %s (deprecated)\n", name); | |
8986 | } else { | |
8987 | qemu_printf(" %s\n", name); | |
8988 | } | |
51492fd1 | 8989 | g_free(name); |
777dc784 PM |
8990 | } |
8991 | ||
0442428a | 8992 | void arm_cpu_list(void) |
777dc784 | 8993 | { |
777dc784 PM |
8994 | GSList *list; |
8995 | ||
8996 | list = object_class_get_list(TYPE_ARM_CPU, false); | |
8997 | list = g_slist_sort(list, arm_cpu_list_compare); | |
0442428a MA |
8998 | qemu_printf("Available CPUs:\n"); |
8999 | g_slist_foreach(list, arm_cpu_list_entry, NULL); | |
777dc784 | 9000 | g_slist_free(list); |
40f137e1 PB |
9001 | } |
9002 | ||
78027bb6 CR |
9003 | static void arm_cpu_add_definition(gpointer data, gpointer user_data) |
9004 | { | |
9005 | ObjectClass *oc = data; | |
9006 | CpuDefinitionInfoList **cpu_list = user_data; | |
78027bb6 CR |
9007 | CpuDefinitionInfo *info; |
9008 | const char *typename; | |
9009 | ||
9010 | typename = object_class_get_name(oc); | |
9011 | info = g_malloc0(sizeof(*info)); | |
9012 | info->name = g_strndup(typename, | |
9013 | strlen(typename) - strlen("-" TYPE_ARM_CPU)); | |
8ed877b7 | 9014 | info->q_typename = g_strdup(typename); |
78027bb6 | 9015 | |
54aa3de7 | 9016 | QAPI_LIST_PREPEND(*cpu_list, info); |
78027bb6 CR |
9017 | } |
9018 | ||
25a9d6ca | 9019 | CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) |
78027bb6 CR |
9020 | { |
9021 | CpuDefinitionInfoList *cpu_list = NULL; | |
9022 | GSList *list; | |
9023 | ||
9024 | list = object_class_get_list(TYPE_ARM_CPU, false); | |
9025 | g_slist_foreach(list, arm_cpu_add_definition, &cpu_list); | |
9026 | g_slist_free(list); | |
9027 | ||
9028 | return cpu_list; | |
9029 | } | |
9030 | ||
1859f8c3 RH |
9031 | /* |
9032 | * Private utility function for define_one_arm_cp_reg_with_opaque(): | |
9033 | * add a single reginfo struct to the hash table. | |
9034 | */ | |
6e6efd61 | 9035 | static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r, |
cbe64585 RH |
9036 | void *opaque, CPState state, |
9037 | CPSecureState secstate, | |
9c513e78 AB |
9038 | int crm, int opc1, int opc2, |
9039 | const char *name) | |
6e6efd61 | 9040 | { |
696ba377 | 9041 | CPUARMState *env = &cpu->env; |
5860362d | 9042 | uint32_t key; |
c27f5d3a | 9043 | ARMCPRegInfo *r2; |
4c8c4541 RH |
9044 | bool is64 = r->type & ARM_CP_64BIT; |
9045 | bool ns = secstate & ARM_CP_SECSTATE_NS; | |
cac65299 | 9046 | int cp = r->cp; |
c27f5d3a | 9047 | size_t name_len; |
696ba377 | 9048 | bool make_const; |
c27f5d3a | 9049 | |
cac65299 RH |
9050 | switch (state) { |
9051 | case ARM_CP_STATE_AA32: | |
9052 | /* We assume it is a cp15 register if the .cp field is left unset. */ | |
9053 | if (cp == 0 && r->state == ARM_CP_STATE_BOTH) { | |
9054 | cp = 15; | |
9055 | } | |
9056 | key = ENCODE_CP_REG(cp, is64, ns, r->crn, crm, opc1, opc2); | |
9057 | break; | |
9058 | case ARM_CP_STATE_AA64: | |
9059 | /* | |
9060 | * To allow abbreviation of ARMCPRegInfo definitions, we treat | |
9061 | * cp == 0 as equivalent to the value for "standard guest-visible | |
9062 | * sysreg". STATE_BOTH definitions are also always "standard sysreg" | |
9063 | * in their AArch64 view (the .cp value may be non-zero for the | |
9064 | * benefit of the AArch32 view). | |
9065 | */ | |
9066 | if (cp == 0 || r->state == ARM_CP_STATE_BOTH) { | |
9067 | cp = CP_REG_ARM64_SYSREG_CP; | |
9068 | } | |
9069 | key = ENCODE_AA64_CP_REG(cp, r->crn, crm, r->opc0, opc1, opc2); | |
9070 | break; | |
9071 | default: | |
9072 | g_assert_not_reached(); | |
9073 | } | |
9074 | ||
dc44545b RH |
9075 | /* Overriding of an existing definition must be explicitly requested. */ |
9076 | if (!(r->type & ARM_CP_OVERRIDE)) { | |
9077 | const ARMCPRegInfo *oldreg = get_arm_cp_reginfo(cpu->cp_regs, key); | |
9078 | if (oldreg) { | |
9079 | assert(oldreg->type & ARM_CP_OVERRIDE); | |
9080 | } | |
9081 | } | |
9082 | ||
696ba377 RH |
9083 | /* |
9084 | * Eliminate registers that are not present because the EL is missing. | |
9085 | * Doing this here makes it easier to put all registers for a given | |
9086 | * feature into the same ARMCPRegInfo array and define them all at once. | |
9087 | */ | |
9088 | make_const = false; | |
9089 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
9090 | /* | |
9091 | * An EL2 register without EL2 but with EL3 is (usually) RES0. | |
9092 | * See rule RJFFP in section D1.1.3 of DDI0487H.a. | |
9093 | */ | |
9094 | int min_el = ctz32(r->access) / 2; | |
9095 | if (min_el == 2 && !arm_feature(env, ARM_FEATURE_EL2)) { | |
9096 | if (r->type & ARM_CP_EL3_NO_EL2_UNDEF) { | |
9097 | return; | |
9098 | } | |
9099 | make_const = !(r->type & ARM_CP_EL3_NO_EL2_KEEP); | |
9100 | } | |
9101 | } else { | |
9102 | CPAccessRights max_el = (arm_feature(env, ARM_FEATURE_EL2) | |
9103 | ? PL2_RW : PL1_RW); | |
9104 | if ((r->access & max_el) == 0) { | |
9105 | return; | |
9106 | } | |
9107 | } | |
9108 | ||
c27f5d3a RH |
9109 | /* Combine cpreg and name into one allocation. */ |
9110 | name_len = strlen(name) + 1; | |
9111 | r2 = g_malloc(sizeof(*r2) + name_len); | |
9112 | *r2 = *r; | |
9113 | r2->name = memcpy(r2 + 1, name, name_len); | |
3f3c82a5 | 9114 | |
cc946d96 RH |
9115 | /* |
9116 | * Update fields to match the instantiation, overwiting wildcards | |
9117 | * such as CP_ANY, ARM_CP_STATE_BOTH, or ARM_CP_SECSTATE_BOTH. | |
3f3c82a5 | 9118 | */ |
cc946d96 RH |
9119 | r2->cp = cp; |
9120 | r2->crm = crm; | |
9121 | r2->opc1 = opc1; | |
9122 | r2->opc2 = opc2; | |
9123 | r2->state = state; | |
3f3c82a5 | 9124 | r2->secure = secstate; |
cc946d96 RH |
9125 | if (opaque) { |
9126 | r2->opaque = opaque; | |
9127 | } | |
3f3c82a5 | 9128 | |
696ba377 RH |
9129 | if (make_const) { |
9130 | /* This should not have been a very special register to begin. */ | |
9131 | int old_special = r2->type & ARM_CP_SPECIAL_MASK; | |
9132 | assert(old_special == 0 || old_special == ARM_CP_NOP); | |
1859f8c3 | 9133 | /* |
696ba377 RH |
9134 | * Set the special function to CONST, retaining the other flags. |
9135 | * This is important for e.g. ARM_CP_SVE so that we still | |
9136 | * take the SVE trap if CPTR_EL3.EZ == 0. | |
f5a0a5a5 | 9137 | */ |
696ba377 RH |
9138 | r2->type = (r2->type & ~ARM_CP_SPECIAL_MASK) | ARM_CP_CONST; |
9139 | /* | |
9140 | * Usually, these registers become RES0, but there are a few | |
9141 | * special cases like VPIDR_EL2 which have a constant non-zero | |
9142 | * value with writes ignored. | |
9143 | */ | |
9144 | if (!(r->type & ARM_CP_EL3_NO_EL2_C_NZ)) { | |
9145 | r2->resetvalue = 0; | |
9146 | } | |
9147 | /* | |
9148 | * ARM_CP_CONST has precedence, so removing the callbacks and | |
9149 | * offsets are not strictly necessary, but it is potentially | |
9150 | * less confusing to debug later. | |
9151 | */ | |
9152 | r2->readfn = NULL; | |
9153 | r2->writefn = NULL; | |
9154 | r2->raw_readfn = NULL; | |
9155 | r2->raw_writefn = NULL; | |
9156 | r2->resetfn = NULL; | |
9157 | r2->fieldoffset = 0; | |
9158 | r2->bank_fieldoffsets[0] = 0; | |
9159 | r2->bank_fieldoffsets[1] = 0; | |
9160 | } else { | |
9161 | bool isbanked = r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1]; | |
3f3c82a5 | 9162 | |
10748a96 | 9163 | if (isbanked) { |
1859f8c3 | 9164 | /* |
696ba377 RH |
9165 | * Register is banked (using both entries in array). |
9166 | * Overwriting fieldoffset as the array is only used to define | |
9167 | * banked registers but later only fieldoffset is used. | |
3f3c82a5 | 9168 | */ |
696ba377 RH |
9169 | r2->fieldoffset = r->bank_fieldoffsets[ns]; |
9170 | } | |
9171 | if (state == ARM_CP_STATE_AA32) { | |
9172 | if (isbanked) { | |
9173 | /* | |
9174 | * If the register is banked then we don't need to migrate or | |
9175 | * reset the 32-bit instance in certain cases: | |
9176 | * | |
9177 | * 1) If the register has both 32-bit and 64-bit instances | |
9178 | * then we can count on the 64-bit instance taking care | |
9179 | * of the non-secure bank. | |
9180 | * 2) If ARMv8 is enabled then we can count on a 64-bit | |
9181 | * version taking care of the secure bank. This requires | |
9182 | * that separate 32 and 64-bit definitions are provided. | |
9183 | */ | |
9184 | if ((r->state == ARM_CP_STATE_BOTH && ns) || | |
9185 | (arm_feature(env, ARM_FEATURE_V8) && !ns)) { | |
9186 | r2->type |= ARM_CP_ALIAS; | |
9187 | } | |
9188 | } else if ((secstate != r->secure) && !ns) { | |
9189 | /* | |
9190 | * The register is not banked so we only want to allow | |
9191 | * migration of the non-secure instance. | |
9192 | */ | |
7a0e58fa | 9193 | r2->type |= ARM_CP_ALIAS; |
3f3c82a5 | 9194 | } |
3f3c82a5 | 9195 | |
696ba377 RH |
9196 | if (HOST_BIG_ENDIAN && |
9197 | r->state == ARM_CP_STATE_BOTH && r2->fieldoffset) { | |
9198 | r2->fieldoffset += sizeof(uint32_t); | |
9199 | } | |
3f3c82a5 | 9200 | } |
f5a0a5a5 | 9201 | } |
cc946d96 | 9202 | |
1859f8c3 RH |
9203 | /* |
9204 | * By convention, for wildcarded registers only the first | |
6e6efd61 | 9205 | * entry is used for migration; the others are marked as |
7a0e58fa | 9206 | * ALIAS so we don't try to transfer the register |
6e6efd61 | 9207 | * multiple times. Special registers (ie NOP/WFI) are |
7a0e58fa | 9208 | * never migratable and not even raw-accessible. |
6e6efd61 | 9209 | */ |
696ba377 | 9210 | if (r2->type & ARM_CP_SPECIAL_MASK) { |
7a0e58fa PM |
9211 | r2->type |= ARM_CP_NO_RAW; |
9212 | } | |
9213 | if (((r->crm == CP_ANY) && crm != 0) || | |
6e6efd61 PM |
9214 | ((r->opc1 == CP_ANY) && opc1 != 0) || |
9215 | ((r->opc2 == CP_ANY) && opc2 != 0)) { | |
1f163787 | 9216 | r2->type |= ARM_CP_ALIAS | ARM_CP_NO_GDB; |
6e6efd61 PM |
9217 | } |
9218 | ||
1859f8c3 RH |
9219 | /* |
9220 | * Check that raw accesses are either forbidden or handled. Note that | |
375421cc PM |
9221 | * we can't assert this earlier because the setup of fieldoffset for |
9222 | * banked registers has to be done first. | |
9223 | */ | |
9224 | if (!(r2->type & ARM_CP_NO_RAW)) { | |
9225 | assert(!raw_accessors_invalid(r2)); | |
9226 | } | |
9227 | ||
5860362d | 9228 | g_hash_table_insert(cpu->cp_regs, (gpointer)(uintptr_t)key, r2); |
6e6efd61 PM |
9229 | } |
9230 | ||
9231 | ||
4b6a83fb PM |
9232 | void define_one_arm_cp_reg_with_opaque(ARMCPU *cpu, |
9233 | const ARMCPRegInfo *r, void *opaque) | |
9234 | { | |
9b37a28c FR |
9235 | /* |
9236 | * Define implementations of coprocessor registers. | |
4b6a83fb PM |
9237 | * We store these in a hashtable because typically |
9238 | * there are less than 150 registers in a space which | |
9239 | * is 16*16*16*8*8 = 262144 in size. | |
9240 | * Wildcarding is supported for the crm, opc1 and opc2 fields. | |
9241 | * If a register is defined twice then the second definition is | |
9242 | * used, so this can be used to define some generic registers and | |
9243 | * then override them with implementation specific variations. | |
9244 | * At least one of the original and the second definition should | |
9245 | * include ARM_CP_OVERRIDE in its type bits -- this is just a guard | |
9246 | * against accidental use. | |
f5a0a5a5 PM |
9247 | * |
9248 | * The state field defines whether the register is to be | |
9249 | * visible in the AArch32 or AArch64 execution state. If the | |
9250 | * state is set to ARM_CP_STATE_BOTH then we synthesise a | |
9251 | * reginfo structure for the AArch32 view, which sees the lower | |
9252 | * 32 bits of the 64 bit register. | |
9253 | * | |
9254 | * Only registers visible in AArch64 may set r->opc0; opc0 cannot | |
9255 | * be wildcarded. AArch64 registers are always considered to be 64 | |
9256 | * bits; the ARM_CP_64BIT* flag applies only to the AArch32 view of | |
9257 | * the register, if any. | |
4b6a83fb | 9258 | */ |
d95101d6 | 9259 | int crm, opc1, opc2; |
4b6a83fb PM |
9260 | int crmmin = (r->crm == CP_ANY) ? 0 : r->crm; |
9261 | int crmmax = (r->crm == CP_ANY) ? 15 : r->crm; | |
9262 | int opc1min = (r->opc1 == CP_ANY) ? 0 : r->opc1; | |
9263 | int opc1max = (r->opc1 == CP_ANY) ? 7 : r->opc1; | |
9264 | int opc2min = (r->opc2 == CP_ANY) ? 0 : r->opc2; | |
9265 | int opc2max = (r->opc2 == CP_ANY) ? 7 : r->opc2; | |
d95101d6 RH |
9266 | CPState state; |
9267 | ||
4b6a83fb PM |
9268 | /* 64 bit registers have only CRm and Opc1 fields */ |
9269 | assert(!((r->type & ARM_CP_64BIT) && (r->opc2 || r->crn))); | |
f5a0a5a5 PM |
9270 | /* op0 only exists in the AArch64 encodings */ |
9271 | assert((r->state != ARM_CP_STATE_AA32) || (r->opc0 == 0)); | |
9272 | /* AArch64 regs are all 64 bit so ARM_CP_64BIT is meaningless */ | |
9273 | assert((r->state != ARM_CP_STATE_AA64) || !(r->type & ARM_CP_64BIT)); | |
cd8be50e PM |
9274 | /* |
9275 | * This API is only for Arm's system coprocessors (14 and 15) or | |
9276 | * (M-profile or v7A-and-earlier only) for implementation defined | |
9277 | * coprocessors in the range 0..7. Our decode assumes this, since | |
9278 | * 8..13 can be used for other insns including VFP and Neon. See | |
9279 | * valid_cp() in translate.c. Assert here that we haven't tried | |
9280 | * to use an invalid coprocessor number. | |
9281 | */ | |
9282 | switch (r->state) { | |
9283 | case ARM_CP_STATE_BOTH: | |
9284 | /* 0 has a special meaning, but otherwise the same rules as AA32. */ | |
9285 | if (r->cp == 0) { | |
9286 | break; | |
9287 | } | |
9288 | /* fall through */ | |
9289 | case ARM_CP_STATE_AA32: | |
9290 | if (arm_feature(&cpu->env, ARM_FEATURE_V8) && | |
9291 | !arm_feature(&cpu->env, ARM_FEATURE_M)) { | |
9292 | assert(r->cp >= 14 && r->cp <= 15); | |
9293 | } else { | |
9294 | assert(r->cp < 8 || (r->cp >= 14 && r->cp <= 15)); | |
9295 | } | |
9296 | break; | |
9297 | case ARM_CP_STATE_AA64: | |
9298 | assert(r->cp == 0 || r->cp == CP_REG_ARM64_SYSREG_CP); | |
9299 | break; | |
9300 | default: | |
9301 | g_assert_not_reached(); | |
9302 | } | |
9b37a28c FR |
9303 | /* |
9304 | * The AArch64 pseudocode CheckSystemAccess() specifies that op1 | |
f5a0a5a5 PM |
9305 | * encodes a minimum access level for the register. We roll this |
9306 | * runtime check into our general permission check code, so check | |
9307 | * here that the reginfo's specified permissions are strict enough | |
9308 | * to encompass the generic architectural permission check. | |
9309 | */ | |
9310 | if (r->state != ARM_CP_STATE_AA32) { | |
39107337 | 9311 | CPAccessRights mask; |
f5a0a5a5 | 9312 | switch (r->opc1) { |
b5bd7440 AB |
9313 | case 0: |
9314 | /* min_EL EL1, but some accessible to EL0 via kernel ABI */ | |
9315 | mask = PL0U_R | PL1_RW; | |
9316 | break; | |
9317 | case 1: case 2: | |
f5a0a5a5 PM |
9318 | /* min_EL EL1 */ |
9319 | mask = PL1_RW; | |
9320 | break; | |
9321 | case 3: | |
9322 | /* min_EL EL0 */ | |
9323 | mask = PL0_RW; | |
9324 | break; | |
9325 | case 4: | |
b4ecf60f | 9326 | case 5: |
f5a0a5a5 PM |
9327 | /* min_EL EL2 */ |
9328 | mask = PL2_RW; | |
9329 | break; | |
f5a0a5a5 PM |
9330 | case 6: |
9331 | /* min_EL EL3 */ | |
9332 | mask = PL3_RW; | |
9333 | break; | |
9334 | case 7: | |
9335 | /* min_EL EL1, secure mode only (we don't check the latter) */ | |
9336 | mask = PL1_RW; | |
9337 | break; | |
9338 | default: | |
9339 | /* broken reginfo with out-of-range opc1 */ | |
d385a605 | 9340 | g_assert_not_reached(); |
f5a0a5a5 PM |
9341 | } |
9342 | /* assert our permissions are not too lax (stricter is fine) */ | |
9343 | assert((r->access & ~mask) == 0); | |
9344 | } | |
9345 | ||
9b37a28c FR |
9346 | /* |
9347 | * Check that the register definition has enough info to handle | |
4b6a83fb PM |
9348 | * reads and writes if they are permitted. |
9349 | */ | |
87c3f0f2 | 9350 | if (!(r->type & (ARM_CP_SPECIAL_MASK | ARM_CP_CONST))) { |
4b6a83fb | 9351 | if (r->access & PL3_R) { |
3f3c82a5 FA |
9352 | assert((r->fieldoffset || |
9353 | (r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1])) || | |
9354 | r->readfn); | |
4b6a83fb PM |
9355 | } |
9356 | if (r->access & PL3_W) { | |
3f3c82a5 FA |
9357 | assert((r->fieldoffset || |
9358 | (r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1])) || | |
9359 | r->writefn); | |
4b6a83fb PM |
9360 | } |
9361 | } | |
5809ac57 | 9362 | |
4b6a83fb PM |
9363 | for (crm = crmmin; crm <= crmmax; crm++) { |
9364 | for (opc1 = opc1min; opc1 <= opc1max; opc1++) { | |
9365 | for (opc2 = opc2min; opc2 <= opc2max; opc2++) { | |
f5a0a5a5 PM |
9366 | for (state = ARM_CP_STATE_AA32; |
9367 | state <= ARM_CP_STATE_AA64; state++) { | |
9368 | if (r->state != state && r->state != ARM_CP_STATE_BOTH) { | |
9369 | continue; | |
9370 | } | |
3f3c82a5 | 9371 | if (state == ARM_CP_STATE_AA32) { |
9b37a28c FR |
9372 | /* |
9373 | * Under AArch32 CP registers can be common | |
3f3c82a5 FA |
9374 | * (same for secure and non-secure world) or banked. |
9375 | */ | |
9c513e78 AB |
9376 | char *name; |
9377 | ||
3f3c82a5 FA |
9378 | switch (r->secure) { |
9379 | case ARM_CP_SECSTATE_S: | |
9380 | case ARM_CP_SECSTATE_NS: | |
9381 | add_cpreg_to_hashtable(cpu, r, opaque, state, | |
9c513e78 AB |
9382 | r->secure, crm, opc1, opc2, |
9383 | r->name); | |
3f3c82a5 | 9384 | break; |
cbe64585 | 9385 | case ARM_CP_SECSTATE_BOTH: |
9c513e78 | 9386 | name = g_strdup_printf("%s_S", r->name); |
3f3c82a5 FA |
9387 | add_cpreg_to_hashtable(cpu, r, opaque, state, |
9388 | ARM_CP_SECSTATE_S, | |
9c513e78 AB |
9389 | crm, opc1, opc2, name); |
9390 | g_free(name); | |
3f3c82a5 FA |
9391 | add_cpreg_to_hashtable(cpu, r, opaque, state, |
9392 | ARM_CP_SECSTATE_NS, | |
9c513e78 | 9393 | crm, opc1, opc2, r->name); |
3f3c82a5 | 9394 | break; |
cbe64585 RH |
9395 | default: |
9396 | g_assert_not_reached(); | |
3f3c82a5 FA |
9397 | } |
9398 | } else { | |
9b37a28c FR |
9399 | /* |
9400 | * AArch64 registers get mapped to non-secure instance | |
9401 | * of AArch32 | |
9402 | */ | |
3f3c82a5 FA |
9403 | add_cpreg_to_hashtable(cpu, r, opaque, state, |
9404 | ARM_CP_SECSTATE_NS, | |
9c513e78 | 9405 | crm, opc1, opc2, r->name); |
3f3c82a5 | 9406 | } |
f5a0a5a5 | 9407 | } |
4b6a83fb PM |
9408 | } |
9409 | } | |
9410 | } | |
9411 | } | |
9412 | ||
5809ac57 RH |
9413 | /* Define a whole list of registers */ |
9414 | void define_arm_cp_regs_with_opaque_len(ARMCPU *cpu, const ARMCPRegInfo *regs, | |
9415 | void *opaque, size_t len) | |
4b6a83fb | 9416 | { |
5809ac57 RH |
9417 | size_t i; |
9418 | for (i = 0; i < len; ++i) { | |
9419 | define_one_arm_cp_reg_with_opaque(cpu, regs + i, opaque); | |
4b6a83fb PM |
9420 | } |
9421 | } | |
9422 | ||
6c5c0fec AB |
9423 | /* |
9424 | * Modify ARMCPRegInfo for access from userspace. | |
9425 | * | |
9426 | * This is a data driven modification directed by | |
9427 | * ARMCPRegUserSpaceInfo. All registers become ARM_CP_CONST as | |
9428 | * user-space cannot alter any values and dynamic values pertaining to | |
9429 | * execution state are hidden from user space view anyway. | |
9430 | */ | |
5809ac57 RH |
9431 | void modify_arm_cp_regs_with_len(ARMCPRegInfo *regs, size_t regs_len, |
9432 | const ARMCPRegUserSpaceInfo *mods, | |
9433 | size_t mods_len) | |
6c5c0fec | 9434 | { |
5809ac57 RH |
9435 | for (size_t mi = 0; mi < mods_len; ++mi) { |
9436 | const ARMCPRegUserSpaceInfo *m = mods + mi; | |
d040242e | 9437 | GPatternSpec *pat = NULL; |
5809ac57 | 9438 | |
d040242e AB |
9439 | if (m->is_glob) { |
9440 | pat = g_pattern_spec_new(m->name); | |
9441 | } | |
5809ac57 RH |
9442 | for (size_t ri = 0; ri < regs_len; ++ri) { |
9443 | ARMCPRegInfo *r = regs + ri; | |
9444 | ||
d040242e AB |
9445 | if (pat && g_pattern_match_string(pat, r->name)) { |
9446 | r->type = ARM_CP_CONST; | |
9447 | r->access = PL0U_R; | |
9448 | r->resetvalue = 0; | |
9449 | /* continue */ | |
9450 | } else if (strcmp(r->name, m->name) == 0) { | |
6c5c0fec AB |
9451 | r->type = ARM_CP_CONST; |
9452 | r->access = PL0U_R; | |
9453 | r->resetvalue &= m->exported_bits; | |
9454 | r->resetvalue |= m->fixed_bits; | |
9455 | break; | |
9456 | } | |
9457 | } | |
d040242e AB |
9458 | if (pat) { |
9459 | g_pattern_spec_free(pat); | |
9460 | } | |
6c5c0fec AB |
9461 | } |
9462 | } | |
9463 | ||
60322b39 | 9464 | const ARMCPRegInfo *get_arm_cp_reginfo(GHashTable *cpregs, uint32_t encoded_cp) |
4b6a83fb | 9465 | { |
5860362d | 9466 | return g_hash_table_lookup(cpregs, (gpointer)(uintptr_t)encoded_cp); |
4b6a83fb PM |
9467 | } |
9468 | ||
c4241c7d PM |
9469 | void arm_cp_write_ignore(CPUARMState *env, const ARMCPRegInfo *ri, |
9470 | uint64_t value) | |
4b6a83fb PM |
9471 | { |
9472 | /* Helper coprocessor write function for write-ignore registers */ | |
4b6a83fb PM |
9473 | } |
9474 | ||
c4241c7d | 9475 | uint64_t arm_cp_read_zero(CPUARMState *env, const ARMCPRegInfo *ri) |
4b6a83fb PM |
9476 | { |
9477 | /* Helper coprocessor write function for read-as-zero registers */ | |
4b6a83fb PM |
9478 | return 0; |
9479 | } | |
9480 | ||
f5a0a5a5 PM |
9481 | void arm_cp_reset_ignore(CPUARMState *env, const ARMCPRegInfo *opaque) |
9482 | { | |
9483 | /* Helper coprocessor reset function for do-nothing-on-reset registers */ | |
9484 | } | |
9485 | ||
af393ffc | 9486 | static int bad_mode_switch(CPUARMState *env, int mode, CPSRWriteType write_type) |
37064a8b | 9487 | { |
9b37a28c FR |
9488 | /* |
9489 | * Return true if it is not valid for us to switch to | |
37064a8b PM |
9490 | * this CPU mode (ie all the UNPREDICTABLE cases in |
9491 | * the ARM ARM CPSRWriteByInstr pseudocode). | |
9492 | */ | |
af393ffc PM |
9493 | |
9494 | /* Changes to or from Hyp via MSR and CPS are illegal. */ | |
9495 | if (write_type == CPSRWriteByInstr && | |
9496 | ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_HYP || | |
9497 | mode == ARM_CPU_MODE_HYP)) { | |
9498 | return 1; | |
9499 | } | |
9500 | ||
37064a8b PM |
9501 | switch (mode) { |
9502 | case ARM_CPU_MODE_USR: | |
10eacda7 | 9503 | return 0; |
37064a8b PM |
9504 | case ARM_CPU_MODE_SYS: |
9505 | case ARM_CPU_MODE_SVC: | |
9506 | case ARM_CPU_MODE_ABT: | |
9507 | case ARM_CPU_MODE_UND: | |
9508 | case ARM_CPU_MODE_IRQ: | |
9509 | case ARM_CPU_MODE_FIQ: | |
9b37a28c FR |
9510 | /* |
9511 | * Note that we don't implement the IMPDEF NSACR.RFR which in v7 | |
52ff951b PM |
9512 | * allows FIQ mode to be Secure-only. (In v8 this doesn't exist.) |
9513 | */ | |
9b37a28c FR |
9514 | /* |
9515 | * If HCR.TGE is set then changes from Monitor to NS PL1 via MSR | |
10eacda7 PM |
9516 | * and CPS are treated as illegal mode changes. |
9517 | */ | |
9518 | if (write_type == CPSRWriteByInstr && | |
10eacda7 | 9519 | (env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_MON && |
7c208e0f | 9520 | (arm_hcr_el2_eff(env) & HCR_TGE)) { |
10eacda7 PM |
9521 | return 1; |
9522 | } | |
37064a8b | 9523 | return 0; |
e6c8fc07 | 9524 | case ARM_CPU_MODE_HYP: |
e6ef0169 | 9525 | return !arm_is_el2_enabled(env) || arm_current_el(env) < 2; |
027fc527 | 9526 | case ARM_CPU_MODE_MON: |
58ae2d1f | 9527 | return arm_current_el(env) < 3; |
37064a8b PM |
9528 | default: |
9529 | return 1; | |
9530 | } | |
9531 | } | |
9532 | ||
2f4a40e5 AZ |
9533 | uint32_t cpsr_read(CPUARMState *env) |
9534 | { | |
9535 | int ZF; | |
6fbe23d5 PB |
9536 | ZF = (env->ZF == 0); |
9537 | return env->uncached_cpsr | (env->NF & 0x80000000) | (ZF << 30) | | |
2f4a40e5 AZ |
9538 | (env->CF << 29) | ((env->VF & 0x80000000) >> 3) | (env->QF << 27) |
9539 | | (env->thumb << 5) | ((env->condexec_bits & 3) << 25) | |
9540 | | ((env->condexec_bits & 0xfc) << 8) | |
af519934 | 9541 | | (env->GE << 16) | (env->daif & CPSR_AIF); |
2f4a40e5 AZ |
9542 | } |
9543 | ||
50866ba5 PM |
9544 | void cpsr_write(CPUARMState *env, uint32_t val, uint32_t mask, |
9545 | CPSRWriteType write_type) | |
2f4a40e5 | 9546 | { |
6e8801f9 | 9547 | uint32_t changed_daif; |
e784807c PM |
9548 | bool rebuild_hflags = (write_type != CPSRWriteRaw) && |
9549 | (mask & (CPSR_M | CPSR_E | CPSR_IL)); | |
6e8801f9 | 9550 | |
2f4a40e5 | 9551 | if (mask & CPSR_NZCV) { |
6fbe23d5 PB |
9552 | env->ZF = (~val) & CPSR_Z; |
9553 | env->NF = val; | |
2f4a40e5 AZ |
9554 | env->CF = (val >> 29) & 1; |
9555 | env->VF = (val << 3) & 0x80000000; | |
9556 | } | |
f927dbda | 9557 | if (mask & CPSR_Q) { |
2f4a40e5 | 9558 | env->QF = ((val & CPSR_Q) != 0); |
f927dbda FR |
9559 | } |
9560 | if (mask & CPSR_T) { | |
2f4a40e5 | 9561 | env->thumb = ((val & CPSR_T) != 0); |
f927dbda | 9562 | } |
2f4a40e5 AZ |
9563 | if (mask & CPSR_IT_0_1) { |
9564 | env->condexec_bits &= ~3; | |
9565 | env->condexec_bits |= (val >> 25) & 3; | |
9566 | } | |
9567 | if (mask & CPSR_IT_2_7) { | |
9568 | env->condexec_bits &= 3; | |
9569 | env->condexec_bits |= (val >> 8) & 0xfc; | |
9570 | } | |
9571 | if (mask & CPSR_GE) { | |
9572 | env->GE = (val >> 16) & 0xf; | |
9573 | } | |
9574 | ||
9b37a28c FR |
9575 | /* |
9576 | * In a V7 implementation that includes the security extensions but does | |
6e8801f9 FA |
9577 | * not include Virtualization Extensions the SCR.FW and SCR.AW bits control |
9578 | * whether non-secure software is allowed to change the CPSR_F and CPSR_A | |
9579 | * bits respectively. | |
9580 | * | |
9581 | * In a V8 implementation, it is permitted for privileged software to | |
9582 | * change the CPSR A/F bits regardless of the SCR.AW/FW bits. | |
9583 | */ | |
f8c88bbc | 9584 | if (write_type != CPSRWriteRaw && !arm_feature(env, ARM_FEATURE_V8) && |
6e8801f9 FA |
9585 | arm_feature(env, ARM_FEATURE_EL3) && |
9586 | !arm_feature(env, ARM_FEATURE_EL2) && | |
9587 | !arm_is_secure(env)) { | |
9588 | ||
9589 | changed_daif = (env->daif ^ val) & mask; | |
9590 | ||
9591 | if (changed_daif & CPSR_A) { | |
9b37a28c FR |
9592 | /* |
9593 | * Check to see if we are allowed to change the masking of async | |
6e8801f9 FA |
9594 | * abort exceptions from a non-secure state. |
9595 | */ | |
9596 | if (!(env->cp15.scr_el3 & SCR_AW)) { | |
9597 | qemu_log_mask(LOG_GUEST_ERROR, | |
9598 | "Ignoring attempt to switch CPSR_A flag from " | |
9599 | "non-secure world with SCR.AW bit clear\n"); | |
9600 | mask &= ~CPSR_A; | |
9601 | } | |
9602 | } | |
9603 | ||
9604 | if (changed_daif & CPSR_F) { | |
9b37a28c FR |
9605 | /* |
9606 | * Check to see if we are allowed to change the masking of FIQ | |
6e8801f9 FA |
9607 | * exceptions from a non-secure state. |
9608 | */ | |
9609 | if (!(env->cp15.scr_el3 & SCR_FW)) { | |
9610 | qemu_log_mask(LOG_GUEST_ERROR, | |
9611 | "Ignoring attempt to switch CPSR_F flag from " | |
9612 | "non-secure world with SCR.FW bit clear\n"); | |
9613 | mask &= ~CPSR_F; | |
9614 | } | |
9615 | ||
9b37a28c FR |
9616 | /* |
9617 | * Check whether non-maskable FIQ (NMFI) support is enabled. | |
6e8801f9 FA |
9618 | * If this bit is set software is not allowed to mask |
9619 | * FIQs, but is allowed to set CPSR_F to 0. | |
9620 | */ | |
9621 | if ((A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_NMFI) && | |
9622 | (val & CPSR_F)) { | |
9623 | qemu_log_mask(LOG_GUEST_ERROR, | |
9624 | "Ignoring attempt to enable CPSR_F flag " | |
9625 | "(non-maskable FIQ [NMFI] support enabled)\n"); | |
9626 | mask &= ~CPSR_F; | |
9627 | } | |
9628 | } | |
9629 | } | |
9630 | ||
4cc35614 PM |
9631 | env->daif &= ~(CPSR_AIF & mask); |
9632 | env->daif |= val & CPSR_AIF & mask; | |
9633 | ||
f8c88bbc PM |
9634 | if (write_type != CPSRWriteRaw && |
9635 | ((env->uncached_cpsr ^ val) & mask & CPSR_M)) { | |
8c4f0eb9 | 9636 | if ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR) { |
9b37a28c FR |
9637 | /* |
9638 | * Note that we can only get here in USR mode if this is a | |
8c4f0eb9 PM |
9639 | * gdb stub write; for this case we follow the architectural |
9640 | * behaviour for guest writes in USR mode of ignoring an attempt | |
9641 | * to switch mode. (Those are caught by translate.c for writes | |
9642 | * triggered by guest instructions.) | |
9643 | */ | |
9644 | mask &= ~CPSR_M; | |
9645 | } else if (bad_mode_switch(env, val & CPSR_M, write_type)) { | |
9b37a28c FR |
9646 | /* |
9647 | * Attempt to switch to an invalid mode: this is UNPREDICTABLE in | |
81907a58 PM |
9648 | * v7, and has defined behaviour in v8: |
9649 | * + leave CPSR.M untouched | |
9650 | * + allow changes to the other CPSR fields | |
9651 | * + set PSTATE.IL | |
9652 | * For user changes via the GDB stub, we don't set PSTATE.IL, | |
9653 | * as this would be unnecessarily harsh for a user error. | |
37064a8b PM |
9654 | */ |
9655 | mask &= ~CPSR_M; | |
81907a58 PM |
9656 | if (write_type != CPSRWriteByGDBStub && |
9657 | arm_feature(env, ARM_FEATURE_V8)) { | |
9658 | mask |= CPSR_IL; | |
9659 | val |= CPSR_IL; | |
9660 | } | |
81e37284 PM |
9661 | qemu_log_mask(LOG_GUEST_ERROR, |
9662 | "Illegal AArch32 mode switch attempt from %s to %s\n", | |
9663 | aarch32_mode_name(env->uncached_cpsr), | |
9664 | aarch32_mode_name(val)); | |
37064a8b | 9665 | } else { |
81e37284 PM |
9666 | qemu_log_mask(CPU_LOG_INT, "%s %s to %s PC 0x%" PRIx32 "\n", |
9667 | write_type == CPSRWriteExceptionReturn ? | |
9668 | "Exception return from AArch32" : | |
9669 | "AArch32 mode switch from", | |
9670 | aarch32_mode_name(env->uncached_cpsr), | |
9671 | aarch32_mode_name(val), env->regs[15]); | |
37064a8b PM |
9672 | switch_mode(env, val & CPSR_M); |
9673 | } | |
2f4a40e5 AZ |
9674 | } |
9675 | mask &= ~CACHED_CPSR_BITS; | |
9676 | env->uncached_cpsr = (env->uncached_cpsr & ~mask) | (val & mask); | |
e784807c PM |
9677 | if (rebuild_hflags) { |
9678 | arm_rebuild_hflags(env); | |
9679 | } | |
2f4a40e5 AZ |
9680 | } |
9681 | ||
b26eefb6 PB |
9682 | /* Sign/zero extend */ |
9683 | uint32_t HELPER(sxtb16)(uint32_t x) | |
9684 | { | |
9685 | uint32_t res; | |
9686 | res = (uint16_t)(int8_t)x; | |
9687 | res |= (uint32_t)(int8_t)(x >> 16) << 16; | |
9688 | return res; | |
9689 | } | |
9690 | ||
e5346292 PM |
9691 | static void handle_possible_div0_trap(CPUARMState *env, uintptr_t ra) |
9692 | { | |
9693 | /* | |
9694 | * Take a division-by-zero exception if necessary; otherwise return | |
9695 | * to get the usual non-trapping division behaviour (result of 0) | |
9696 | */ | |
9697 | if (arm_feature(env, ARM_FEATURE_M) | |
9698 | && (env->v7m.ccr[env->v7m.secure] & R_V7M_CCR_DIV_0_TRP_MASK)) { | |
9699 | raise_exception_ra(env, EXCP_DIVBYZERO, 0, 1, ra); | |
9700 | } | |
9701 | } | |
9702 | ||
b26eefb6 PB |
9703 | uint32_t HELPER(uxtb16)(uint32_t x) |
9704 | { | |
9705 | uint32_t res; | |
9706 | res = (uint16_t)(uint8_t)x; | |
9707 | res |= (uint32_t)(uint8_t)(x >> 16) << 16; | |
9708 | return res; | |
9709 | } | |
9710 | ||
e5346292 | 9711 | int32_t HELPER(sdiv)(CPUARMState *env, int32_t num, int32_t den) |
3670669c | 9712 | { |
fc7a5038 | 9713 | if (den == 0) { |
e5346292 | 9714 | handle_possible_div0_trap(env, GETPC()); |
fc7a5038 PM |
9715 | return 0; |
9716 | } | |
9717 | if (num == INT_MIN && den == -1) { | |
9718 | return INT_MIN; | |
9719 | } | |
3670669c PB |
9720 | return num / den; |
9721 | } | |
9722 | ||
e5346292 | 9723 | uint32_t HELPER(udiv)(CPUARMState *env, uint32_t num, uint32_t den) |
3670669c | 9724 | { |
fc7a5038 | 9725 | if (den == 0) { |
e5346292 | 9726 | handle_possible_div0_trap(env, GETPC()); |
fc7a5038 PM |
9727 | return 0; |
9728 | } | |
3670669c PB |
9729 | return num / den; |
9730 | } | |
9731 | ||
9732 | uint32_t HELPER(rbit)(uint32_t x) | |
9733 | { | |
42fedbca | 9734 | return revbit32(x); |
3670669c PB |
9735 | } |
9736 | ||
c47eaf9f | 9737 | #ifdef CONFIG_USER_ONLY |
b5ff1b31 | 9738 | |
affdb64d | 9739 | static void switch_mode(CPUARMState *env, int mode) |
b5ff1b31 | 9740 | { |
2fc0cc0e | 9741 | ARMCPU *cpu = env_archcpu(env); |
a47dddd7 AF |
9742 | |
9743 | if (mode != ARM_CPU_MODE_USR) { | |
9744 | cpu_abort(CPU(cpu), "Tried to switch out of user mode\n"); | |
9745 | } | |
b5ff1b31 FB |
9746 | } |
9747 | ||
012a906b GB |
9748 | uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx, |
9749 | uint32_t cur_el, bool secure) | |
9e729b57 EI |
9750 | { |
9751 | return 1; | |
9752 | } | |
9753 | ||
ce02049d GB |
9754 | void aarch64_sync_64_to_32(CPUARMState *env) |
9755 | { | |
9756 | g_assert_not_reached(); | |
9757 | } | |
9758 | ||
b5ff1b31 FB |
9759 | #else |
9760 | ||
affdb64d | 9761 | static void switch_mode(CPUARMState *env, int mode) |
b5ff1b31 FB |
9762 | { |
9763 | int old_mode; | |
9764 | int i; | |
9765 | ||
9766 | old_mode = env->uncached_cpsr & CPSR_M; | |
f927dbda | 9767 | if (mode == old_mode) { |
b5ff1b31 | 9768 | return; |
f927dbda | 9769 | } |
b5ff1b31 FB |
9770 | |
9771 | if (old_mode == ARM_CPU_MODE_FIQ) { | |
04215eb1 FR |
9772 | memcpy(env->fiq_regs, env->regs + 8, 5 * sizeof(uint32_t)); |
9773 | memcpy(env->regs + 8, env->usr_regs, 5 * sizeof(uint32_t)); | |
b5ff1b31 | 9774 | } else if (mode == ARM_CPU_MODE_FIQ) { |
04215eb1 FR |
9775 | memcpy(env->usr_regs, env->regs + 8, 5 * sizeof(uint32_t)); |
9776 | memcpy(env->regs + 8, env->fiq_regs, 5 * sizeof(uint32_t)); | |
b5ff1b31 FB |
9777 | } |
9778 | ||
f5206413 | 9779 | i = bank_number(old_mode); |
b5ff1b31 | 9780 | env->banked_r13[i] = env->regs[13]; |
b5ff1b31 FB |
9781 | env->banked_spsr[i] = env->spsr; |
9782 | ||
f5206413 | 9783 | i = bank_number(mode); |
b5ff1b31 | 9784 | env->regs[13] = env->banked_r13[i]; |
b5ff1b31 | 9785 | env->spsr = env->banked_spsr[i]; |
593cfa2b PM |
9786 | |
9787 | env->banked_r14[r14_bank_number(old_mode)] = env->regs[14]; | |
9788 | env->regs[14] = env->banked_r14[r14_bank_number(mode)]; | |
b5ff1b31 FB |
9789 | } |
9790 | ||
9b37a28c FR |
9791 | /* |
9792 | * Physical Interrupt Target EL Lookup Table | |
0eeb17d6 GB |
9793 | * |
9794 | * [ From ARM ARM section G1.13.4 (Table G1-15) ] | |
9795 | * | |
9796 | * The below multi-dimensional table is used for looking up the target | |
9797 | * exception level given numerous condition criteria. Specifically, the | |
9798 | * target EL is based on SCR and HCR routing controls as well as the | |
9799 | * currently executing EL and secure state. | |
9800 | * | |
9801 | * Dimensions: | |
9802 | * target_el_table[2][2][2][2][2][4] | |
9803 | * | | | | | +--- Current EL | |
9804 | * | | | | +------ Non-secure(0)/Secure(1) | |
9805 | * | | | +--------- HCR mask override | |
9806 | * | | +------------ SCR exec state control | |
9807 | * | +--------------- SCR mask override | |
9808 | * +------------------ 32-bit(0)/64-bit(1) EL3 | |
9809 | * | |
9810 | * The table values are as such: | |
9811 | * 0-3 = EL0-EL3 | |
9812 | * -1 = Cannot occur | |
9813 | * | |
9814 | * The ARM ARM target EL table includes entries indicating that an "exception | |
9815 | * is not taken". The two cases where this is applicable are: | |
9816 | * 1) An exception is taken from EL3 but the SCR does not have the exception | |
9817 | * routed to EL3. | |
9818 | * 2) An exception is taken from EL2 but the HCR does not have the exception | |
9819 | * routed to EL2. | |
9820 | * In these two cases, the below table contain a target of EL1. This value is | |
9821 | * returned as it is expected that the consumer of the table data will check | |
9822 | * for "target EL >= current EL" to ensure the exception is not taken. | |
9823 | * | |
9824 | * SCR HCR | |
9825 | * 64 EA AMO From | |
9826 | * BIT IRQ IMO Non-secure Secure | |
9827 | * EL3 FIQ RW FMO EL0 EL1 EL2 EL3 EL0 EL1 EL2 EL3 | |
9828 | */ | |
82c39f6a | 9829 | static const int8_t target_el_table[2][2][2][2][2][4] = { |
0eeb17d6 GB |
9830 | {{{{/* 0 0 0 0 */{ 1, 1, 2, -1 },{ 3, -1, -1, 3 },}, |
9831 | {/* 0 0 0 1 */{ 2, 2, 2, -1 },{ 3, -1, -1, 3 },},}, | |
9832 | {{/* 0 0 1 0 */{ 1, 1, 2, -1 },{ 3, -1, -1, 3 },}, | |
9833 | {/* 0 0 1 1 */{ 2, 2, 2, -1 },{ 3, -1, -1, 3 },},},}, | |
9834 | {{{/* 0 1 0 0 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },}, | |
9835 | {/* 0 1 0 1 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},}, | |
9836 | {{/* 0 1 1 0 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },}, | |
9837 | {/* 0 1 1 1 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},},},}, | |
9838 | {{{{/* 1 0 0 0 */{ 1, 1, 2, -1 },{ 1, 1, -1, 1 },}, | |
6c85f906 RDC |
9839 | {/* 1 0 0 1 */{ 2, 2, 2, -1 },{ 2, 2, -1, 1 },},}, |
9840 | {{/* 1 0 1 0 */{ 1, 1, 1, -1 },{ 1, 1, 1, 1 },}, | |
9841 | {/* 1 0 1 1 */{ 2, 2, 2, -1 },{ 2, 2, 2, 1 },},},}, | |
0eeb17d6 GB |
9842 | {{{/* 1 1 0 0 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },}, |
9843 | {/* 1 1 0 1 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},}, | |
6c85f906 RDC |
9844 | {{/* 1 1 1 0 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },}, |
9845 | {/* 1 1 1 1 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },},},},}, | |
0eeb17d6 GB |
9846 | }; |
9847 | ||
9848 | /* | |
9849 | * Determine the target EL for physical exceptions | |
9850 | */ | |
012a906b GB |
9851 | uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx, |
9852 | uint32_t cur_el, bool secure) | |
0eeb17d6 GB |
9853 | { |
9854 | CPUARMState *env = cs->env_ptr; | |
f7778444 RH |
9855 | bool rw; |
9856 | bool scr; | |
9857 | bool hcr; | |
0eeb17d6 | 9858 | int target_el; |
2cde031f | 9859 | /* Is the highest EL AArch64? */ |
f7778444 RH |
9860 | bool is64 = arm_feature(env, ARM_FEATURE_AARCH64); |
9861 | uint64_t hcr_el2; | |
2cde031f SS |
9862 | |
9863 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
9864 | rw = ((env->cp15.scr_el3 & SCR_RW) == SCR_RW); | |
9865 | } else { | |
9b37a28c FR |
9866 | /* |
9867 | * Either EL2 is the highest EL (and so the EL2 register width | |
2cde031f SS |
9868 | * is given by is64); or there is no EL2 or EL3, in which case |
9869 | * the value of 'rw' does not affect the table lookup anyway. | |
9870 | */ | |
9871 | rw = is64; | |
9872 | } | |
0eeb17d6 | 9873 | |
f7778444 | 9874 | hcr_el2 = arm_hcr_el2_eff(env); |
0eeb17d6 GB |
9875 | switch (excp_idx) { |
9876 | case EXCP_IRQ: | |
9877 | scr = ((env->cp15.scr_el3 & SCR_IRQ) == SCR_IRQ); | |
f7778444 | 9878 | hcr = hcr_el2 & HCR_IMO; |
0eeb17d6 GB |
9879 | break; |
9880 | case EXCP_FIQ: | |
9881 | scr = ((env->cp15.scr_el3 & SCR_FIQ) == SCR_FIQ); | |
f7778444 | 9882 | hcr = hcr_el2 & HCR_FMO; |
0eeb17d6 GB |
9883 | break; |
9884 | default: | |
9885 | scr = ((env->cp15.scr_el3 & SCR_EA) == SCR_EA); | |
f7778444 | 9886 | hcr = hcr_el2 & HCR_AMO; |
0eeb17d6 GB |
9887 | break; |
9888 | }; | |
9889 | ||
d1b31428 RH |
9890 | /* |
9891 | * For these purposes, TGE and AMO/IMO/FMO both force the | |
9892 | * interrupt to EL2. Fold TGE into the bit extracted above. | |
9893 | */ | |
9894 | hcr |= (hcr_el2 & HCR_TGE) != 0; | |
9895 | ||
0eeb17d6 GB |
9896 | /* Perform a table-lookup for the target EL given the current state */ |
9897 | target_el = target_el_table[is64][scr][rw][hcr][secure][cur_el]; | |
9898 | ||
9899 | assert(target_el > 0); | |
9900 | ||
9901 | return target_el; | |
9902 | } | |
9903 | ||
fc6177af | 9904 | void arm_log_exception(CPUState *cs) |
b59f479b | 9905 | { |
fc6177af PM |
9906 | int idx = cs->exception_index; |
9907 | ||
b59f479b PMD |
9908 | if (qemu_loglevel_mask(CPU_LOG_INT)) { |
9909 | const char *exc = NULL; | |
9910 | static const char * const excnames[] = { | |
9911 | [EXCP_UDEF] = "Undefined Instruction", | |
9912 | [EXCP_SWI] = "SVC", | |
9913 | [EXCP_PREFETCH_ABORT] = "Prefetch Abort", | |
9914 | [EXCP_DATA_ABORT] = "Data Abort", | |
9915 | [EXCP_IRQ] = "IRQ", | |
9916 | [EXCP_FIQ] = "FIQ", | |
9917 | [EXCP_BKPT] = "Breakpoint", | |
9918 | [EXCP_EXCEPTION_EXIT] = "QEMU v7M exception exit", | |
9919 | [EXCP_KERNEL_TRAP] = "QEMU intercept of kernel commpage", | |
9920 | [EXCP_HVC] = "Hypervisor Call", | |
9921 | [EXCP_HYP_TRAP] = "Hypervisor Trap", | |
9922 | [EXCP_SMC] = "Secure Monitor Call", | |
9923 | [EXCP_VIRQ] = "Virtual IRQ", | |
9924 | [EXCP_VFIQ] = "Virtual FIQ", | |
9925 | [EXCP_SEMIHOST] = "Semihosting call", | |
9926 | [EXCP_NOCP] = "v7M NOCP UsageFault", | |
9927 | [EXCP_INVSTATE] = "v7M INVSTATE UsageFault", | |
9928 | [EXCP_STKOF] = "v8M STKOF UsageFault", | |
9929 | [EXCP_LAZYFP] = "v7M exception during lazy FP stacking", | |
9930 | [EXCP_LSERR] = "v8M LSERR UsageFault", | |
9931 | [EXCP_UNALIGNED] = "v7M UNALIGNED UsageFault", | |
e5346292 | 9932 | [EXCP_DIVBYZERO] = "v7M DIVBYZERO UsageFault", |
3c29632f | 9933 | [EXCP_VSERR] = "Virtual SERR", |
b59f479b PMD |
9934 | }; |
9935 | ||
9936 | if (idx >= 0 && idx < ARRAY_SIZE(excnames)) { | |
9937 | exc = excnames[idx]; | |
9938 | } | |
9939 | if (!exc) { | |
9940 | exc = "unknown"; | |
9941 | } | |
fc6177af PM |
9942 | qemu_log_mask(CPU_LOG_INT, "Taking exception %d [%s] on CPU %d\n", |
9943 | idx, exc, cs->cpu_index); | |
b59f479b PMD |
9944 | } |
9945 | } | |
9946 | ||
a356dacf | 9947 | /* |
7aab5a8c PMD |
9948 | * Function used to synchronize QEMU's AArch64 register set with AArch32 |
9949 | * register set. This is necessary when switching between AArch32 and AArch64 | |
9950 | * execution state. | |
a356dacf | 9951 | */ |
7aab5a8c | 9952 | void aarch64_sync_32_to_64(CPUARMState *env) |
9ee6e8bb | 9953 | { |
7aab5a8c PMD |
9954 | int i; |
9955 | uint32_t mode = env->uncached_cpsr & CPSR_M; | |
9956 | ||
9957 | /* We can blanket copy R[0:7] to X[0:7] */ | |
9958 | for (i = 0; i < 8; i++) { | |
9959 | env->xregs[i] = env->regs[i]; | |
fd592d89 | 9960 | } |
70d74660 | 9961 | |
9a223097 | 9962 | /* |
7aab5a8c PMD |
9963 | * Unless we are in FIQ mode, x8-x12 come from the user registers r8-r12. |
9964 | * Otherwise, they come from the banked user regs. | |
fd592d89 | 9965 | */ |
7aab5a8c PMD |
9966 | if (mode == ARM_CPU_MODE_FIQ) { |
9967 | for (i = 8; i < 13; i++) { | |
9968 | env->xregs[i] = env->usr_regs[i - 8]; | |
9969 | } | |
9970 | } else { | |
9971 | for (i = 8; i < 13; i++) { | |
9972 | env->xregs[i] = env->regs[i]; | |
9973 | } | |
fd592d89 | 9974 | } |
9ee6e8bb | 9975 | |
7aab5a8c PMD |
9976 | /* |
9977 | * Registers x13-x23 are the various mode SP and FP registers. Registers | |
9978 | * r13 and r14 are only copied if we are in that mode, otherwise we copy | |
9979 | * from the mode banked register. | |
9980 | */ | |
9981 | if (mode == ARM_CPU_MODE_USR || mode == ARM_CPU_MODE_SYS) { | |
9982 | env->xregs[13] = env->regs[13]; | |
9983 | env->xregs[14] = env->regs[14]; | |
9984 | } else { | |
9985 | env->xregs[13] = env->banked_r13[bank_number(ARM_CPU_MODE_USR)]; | |
9986 | /* HYP is an exception in that it is copied from r14 */ | |
9987 | if (mode == ARM_CPU_MODE_HYP) { | |
9988 | env->xregs[14] = env->regs[14]; | |
95695eff | 9989 | } else { |
7aab5a8c | 9990 | env->xregs[14] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_USR)]; |
95695eff | 9991 | } |
95695eff PM |
9992 | } |
9993 | ||
7aab5a8c PMD |
9994 | if (mode == ARM_CPU_MODE_HYP) { |
9995 | env->xregs[15] = env->regs[13]; | |
9996 | } else { | |
9997 | env->xregs[15] = env->banked_r13[bank_number(ARM_CPU_MODE_HYP)]; | |
95695eff PM |
9998 | } |
9999 | ||
7aab5a8c PMD |
10000 | if (mode == ARM_CPU_MODE_IRQ) { |
10001 | env->xregs[16] = env->regs[14]; | |
10002 | env->xregs[17] = env->regs[13]; | |
10003 | } else { | |
10004 | env->xregs[16] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_IRQ)]; | |
10005 | env->xregs[17] = env->banked_r13[bank_number(ARM_CPU_MODE_IRQ)]; | |
10006 | } | |
95695eff | 10007 | |
7aab5a8c PMD |
10008 | if (mode == ARM_CPU_MODE_SVC) { |
10009 | env->xregs[18] = env->regs[14]; | |
10010 | env->xregs[19] = env->regs[13]; | |
10011 | } else { | |
10012 | env->xregs[18] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_SVC)]; | |
10013 | env->xregs[19] = env->banked_r13[bank_number(ARM_CPU_MODE_SVC)]; | |
10014 | } | |
95695eff | 10015 | |
7aab5a8c PMD |
10016 | if (mode == ARM_CPU_MODE_ABT) { |
10017 | env->xregs[20] = env->regs[14]; | |
10018 | env->xregs[21] = env->regs[13]; | |
10019 | } else { | |
10020 | env->xregs[20] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_ABT)]; | |
10021 | env->xregs[21] = env->banked_r13[bank_number(ARM_CPU_MODE_ABT)]; | |
10022 | } | |
e33cf0f8 | 10023 | |
7aab5a8c PMD |
10024 | if (mode == ARM_CPU_MODE_UND) { |
10025 | env->xregs[22] = env->regs[14]; | |
10026 | env->xregs[23] = env->regs[13]; | |
10027 | } else { | |
10028 | env->xregs[22] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_UND)]; | |
10029 | env->xregs[23] = env->banked_r13[bank_number(ARM_CPU_MODE_UND)]; | |
e33cf0f8 PM |
10030 | } |
10031 | ||
10032 | /* | |
7aab5a8c PMD |
10033 | * Registers x24-x30 are mapped to r8-r14 in FIQ mode. If we are in FIQ |
10034 | * mode, then we can copy from r8-r14. Otherwise, we copy from the | |
10035 | * FIQ bank for r8-r14. | |
e33cf0f8 | 10036 | */ |
7aab5a8c PMD |
10037 | if (mode == ARM_CPU_MODE_FIQ) { |
10038 | for (i = 24; i < 31; i++) { | |
10039 | env->xregs[i] = env->regs[i - 16]; /* X[24:30] <- R[8:14] */ | |
10040 | } | |
10041 | } else { | |
10042 | for (i = 24; i < 29; i++) { | |
10043 | env->xregs[i] = env->fiq_regs[i - 24]; | |
e33cf0f8 | 10044 | } |
7aab5a8c PMD |
10045 | env->xregs[29] = env->banked_r13[bank_number(ARM_CPU_MODE_FIQ)]; |
10046 | env->xregs[30] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_FIQ)]; | |
e33cf0f8 | 10047 | } |
7aab5a8c PMD |
10048 | |
10049 | env->pc = env->regs[15]; | |
e33cf0f8 PM |
10050 | } |
10051 | ||
9a223097 | 10052 | /* |
7aab5a8c PMD |
10053 | * Function used to synchronize QEMU's AArch32 register set with AArch64 |
10054 | * register set. This is necessary when switching between AArch32 and AArch64 | |
10055 | * execution state. | |
de2db7ec | 10056 | */ |
7aab5a8c | 10057 | void aarch64_sync_64_to_32(CPUARMState *env) |
9ee6e8bb | 10058 | { |
7aab5a8c PMD |
10059 | int i; |
10060 | uint32_t mode = env->uncached_cpsr & CPSR_M; | |
abc24d86 | 10061 | |
7aab5a8c PMD |
10062 | /* We can blanket copy X[0:7] to R[0:7] */ |
10063 | for (i = 0; i < 8; i++) { | |
10064 | env->regs[i] = env->xregs[i]; | |
de2db7ec | 10065 | } |
3f0cddee | 10066 | |
9a223097 | 10067 | /* |
7aab5a8c PMD |
10068 | * Unless we are in FIQ mode, r8-r12 come from the user registers x8-x12. |
10069 | * Otherwise, we copy x8-x12 into the banked user regs. | |
de2db7ec | 10070 | */ |
7aab5a8c PMD |
10071 | if (mode == ARM_CPU_MODE_FIQ) { |
10072 | for (i = 8; i < 13; i++) { | |
10073 | env->usr_regs[i - 8] = env->xregs[i]; | |
10074 | } | |
10075 | } else { | |
10076 | for (i = 8; i < 13; i++) { | |
10077 | env->regs[i] = env->xregs[i]; | |
10078 | } | |
fb602cb7 PM |
10079 | } |
10080 | ||
9a223097 | 10081 | /* |
7aab5a8c PMD |
10082 | * Registers r13 & r14 depend on the current mode. |
10083 | * If we are in a given mode, we copy the corresponding x registers to r13 | |
10084 | * and r14. Otherwise, we copy the x register to the banked r13 and r14 | |
10085 | * for the mode. | |
fb602cb7 | 10086 | */ |
7aab5a8c PMD |
10087 | if (mode == ARM_CPU_MODE_USR || mode == ARM_CPU_MODE_SYS) { |
10088 | env->regs[13] = env->xregs[13]; | |
10089 | env->regs[14] = env->xregs[14]; | |
fb602cb7 | 10090 | } else { |
7aab5a8c | 10091 | env->banked_r13[bank_number(ARM_CPU_MODE_USR)] = env->xregs[13]; |
fb602cb7 | 10092 | |
7aab5a8c PMD |
10093 | /* |
10094 | * HYP is an exception in that it does not have its own banked r14 but | |
10095 | * shares the USR r14 | |
10096 | */ | |
10097 | if (mode == ARM_CPU_MODE_HYP) { | |
10098 | env->regs[14] = env->xregs[14]; | |
10099 | } else { | |
10100 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_USR)] = env->xregs[14]; | |
10101 | } | |
10102 | } | |
fb602cb7 | 10103 | |
7aab5a8c PMD |
10104 | if (mode == ARM_CPU_MODE_HYP) { |
10105 | env->regs[13] = env->xregs[15]; | |
fb602cb7 | 10106 | } else { |
7aab5a8c | 10107 | env->banked_r13[bank_number(ARM_CPU_MODE_HYP)] = env->xregs[15]; |
fb602cb7 | 10108 | } |
d02a8698 | 10109 | |
7aab5a8c PMD |
10110 | if (mode == ARM_CPU_MODE_IRQ) { |
10111 | env->regs[14] = env->xregs[16]; | |
10112 | env->regs[13] = env->xregs[17]; | |
d02a8698 | 10113 | } else { |
7aab5a8c PMD |
10114 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_IRQ)] = env->xregs[16]; |
10115 | env->banked_r13[bank_number(ARM_CPU_MODE_IRQ)] = env->xregs[17]; | |
d02a8698 PM |
10116 | } |
10117 | ||
7aab5a8c PMD |
10118 | if (mode == ARM_CPU_MODE_SVC) { |
10119 | env->regs[14] = env->xregs[18]; | |
10120 | env->regs[13] = env->xregs[19]; | |
10121 | } else { | |
10122 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_SVC)] = env->xregs[18]; | |
10123 | env->banked_r13[bank_number(ARM_CPU_MODE_SVC)] = env->xregs[19]; | |
fb602cb7 PM |
10124 | } |
10125 | ||
7aab5a8c PMD |
10126 | if (mode == ARM_CPU_MODE_ABT) { |
10127 | env->regs[14] = env->xregs[20]; | |
10128 | env->regs[13] = env->xregs[21]; | |
10129 | } else { | |
10130 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_ABT)] = env->xregs[20]; | |
10131 | env->banked_r13[bank_number(ARM_CPU_MODE_ABT)] = env->xregs[21]; | |
ce02049d GB |
10132 | } |
10133 | ||
10134 | if (mode == ARM_CPU_MODE_UND) { | |
3a9148d0 SS |
10135 | env->regs[14] = env->xregs[22]; |
10136 | env->regs[13] = env->xregs[23]; | |
ce02049d | 10137 | } else { |
593cfa2b | 10138 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_UND)] = env->xregs[22]; |
3a9148d0 | 10139 | env->banked_r13[bank_number(ARM_CPU_MODE_UND)] = env->xregs[23]; |
ce02049d GB |
10140 | } |
10141 | ||
9b37a28c FR |
10142 | /* |
10143 | * Registers x24-x30 are mapped to r8-r14 in FIQ mode. If we are in FIQ | |
ce02049d GB |
10144 | * mode, then we can copy to r8-r14. Otherwise, we copy to the |
10145 | * FIQ bank for r8-r14. | |
10146 | */ | |
10147 | if (mode == ARM_CPU_MODE_FIQ) { | |
10148 | for (i = 24; i < 31; i++) { | |
10149 | env->regs[i - 16] = env->xregs[i]; /* X[24:30] -> R[8:14] */ | |
10150 | } | |
10151 | } else { | |
10152 | for (i = 24; i < 29; i++) { | |
10153 | env->fiq_regs[i - 24] = env->xregs[i]; | |
10154 | } | |
10155 | env->banked_r13[bank_number(ARM_CPU_MODE_FIQ)] = env->xregs[29]; | |
593cfa2b | 10156 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_FIQ)] = env->xregs[30]; |
ce02049d GB |
10157 | } |
10158 | ||
10159 | env->regs[15] = env->pc; | |
10160 | } | |
10161 | ||
dea8378b PM |
10162 | static void take_aarch32_exception(CPUARMState *env, int new_mode, |
10163 | uint32_t mask, uint32_t offset, | |
10164 | uint32_t newpc) | |
10165 | { | |
4a2696c0 RH |
10166 | int new_el; |
10167 | ||
dea8378b PM |
10168 | /* Change the CPU state so as to actually take the exception. */ |
10169 | switch_mode(env, new_mode); | |
4a2696c0 | 10170 | |
dea8378b PM |
10171 | /* |
10172 | * For exceptions taken to AArch32 we must clear the SS bit in both | |
10173 | * PSTATE and in the old-state value we save to SPSR_<mode>, so zero it now. | |
10174 | */ | |
f944a854 | 10175 | env->pstate &= ~PSTATE_SS; |
dea8378b PM |
10176 | env->spsr = cpsr_read(env); |
10177 | /* Clear IT bits. */ | |
10178 | env->condexec_bits = 0; | |
10179 | /* Switch to the new mode, and to the correct instruction set. */ | |
10180 | env->uncached_cpsr = (env->uncached_cpsr & ~CPSR_M) | new_mode; | |
88828bf1 CD |
10181 | |
10182 | /* This must be after mode switching. */ | |
10183 | new_el = arm_current_el(env); | |
10184 | ||
dea8378b PM |
10185 | /* Set new mode endianness */ |
10186 | env->uncached_cpsr &= ~CPSR_E; | |
4a2696c0 | 10187 | if (env->cp15.sctlr_el[new_el] & SCTLR_EE) { |
dea8378b PM |
10188 | env->uncached_cpsr |= CPSR_E; |
10189 | } | |
829f9fd3 PM |
10190 | /* J and IL must always be cleared for exception entry */ |
10191 | env->uncached_cpsr &= ~(CPSR_IL | CPSR_J); | |
dea8378b PM |
10192 | env->daif |= mask; |
10193 | ||
f2f68a78 RC |
10194 | if (cpu_isar_feature(aa32_ssbs, env_archcpu(env))) { |
10195 | if (env->cp15.sctlr_el[new_el] & SCTLR_DSSBS_32) { | |
10196 | env->uncached_cpsr |= CPSR_SSBS; | |
10197 | } else { | |
10198 | env->uncached_cpsr &= ~CPSR_SSBS; | |
10199 | } | |
10200 | } | |
10201 | ||
dea8378b PM |
10202 | if (new_mode == ARM_CPU_MODE_HYP) { |
10203 | env->thumb = (env->cp15.sctlr_el[2] & SCTLR_TE) != 0; | |
10204 | env->elr_el[2] = env->regs[15]; | |
10205 | } else { | |
4a2696c0 | 10206 | /* CPSR.PAN is normally preserved preserved unless... */ |
f8af1143 | 10207 | if (cpu_isar_feature(aa32_pan, env_archcpu(env))) { |
4a2696c0 RH |
10208 | switch (new_el) { |
10209 | case 3: | |
10210 | if (!arm_is_secure_below_el3(env)) { | |
10211 | /* ... the target is EL3, from non-secure state. */ | |
10212 | env->uncached_cpsr &= ~CPSR_PAN; | |
10213 | break; | |
10214 | } | |
10215 | /* ... the target is EL3, from secure state ... */ | |
10216 | /* fall through */ | |
10217 | case 1: | |
10218 | /* ... the target is EL1 and SCTLR.SPAN is 0. */ | |
10219 | if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPAN)) { | |
10220 | env->uncached_cpsr |= CPSR_PAN; | |
10221 | } | |
10222 | break; | |
10223 | } | |
10224 | } | |
dea8378b PM |
10225 | /* |
10226 | * this is a lie, as there was no c1_sys on V4T/V5, but who cares | |
10227 | * and we should just guard the thumb mode on V4 | |
10228 | */ | |
10229 | if (arm_feature(env, ARM_FEATURE_V4T)) { | |
10230 | env->thumb = | |
10231 | (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_TE) != 0; | |
10232 | } | |
10233 | env->regs[14] = env->regs[15] + offset; | |
10234 | } | |
10235 | env->regs[15] = newpc; | |
a8a79c7a | 10236 | arm_rebuild_hflags(env); |
dea8378b PM |
10237 | } |
10238 | ||
b9bc21ff PM |
10239 | static void arm_cpu_do_interrupt_aarch32_hyp(CPUState *cs) |
10240 | { | |
10241 | /* | |
10242 | * Handle exception entry to Hyp mode; this is sufficiently | |
10243 | * different to entry to other AArch32 modes that we handle it | |
10244 | * separately here. | |
10245 | * | |
10246 | * The vector table entry used is always the 0x14 Hyp mode entry point, | |
2c023d36 | 10247 | * unless this is an UNDEF/SVC/HVC/abort taken from Hyp to Hyp. |
b9bc21ff PM |
10248 | * The offset applied to the preferred return address is always zero |
10249 | * (see DDI0487C.a section G1.12.3). | |
10250 | * PSTATE A/I/F masks are set based only on the SCR.EA/IRQ/FIQ values. | |
10251 | */ | |
10252 | uint32_t addr, mask; | |
10253 | ARMCPU *cpu = ARM_CPU(cs); | |
10254 | CPUARMState *env = &cpu->env; | |
10255 | ||
10256 | switch (cs->exception_index) { | |
10257 | case EXCP_UDEF: | |
10258 | addr = 0x04; | |
10259 | break; | |
10260 | case EXCP_SWI: | |
2c023d36 | 10261 | addr = 0x08; |
b9bc21ff PM |
10262 | break; |
10263 | case EXCP_BKPT: | |
10264 | /* Fall through to prefetch abort. */ | |
10265 | case EXCP_PREFETCH_ABORT: | |
10266 | env->cp15.ifar_s = env->exception.vaddress; | |
10267 | qemu_log_mask(CPU_LOG_INT, "...with HIFAR 0x%x\n", | |
10268 | (uint32_t)env->exception.vaddress); | |
10269 | addr = 0x0c; | |
10270 | break; | |
10271 | case EXCP_DATA_ABORT: | |
10272 | env->cp15.dfar_s = env->exception.vaddress; | |
10273 | qemu_log_mask(CPU_LOG_INT, "...with HDFAR 0x%x\n", | |
10274 | (uint32_t)env->exception.vaddress); | |
10275 | addr = 0x10; | |
10276 | break; | |
10277 | case EXCP_IRQ: | |
10278 | addr = 0x18; | |
10279 | break; | |
10280 | case EXCP_FIQ: | |
10281 | addr = 0x1c; | |
10282 | break; | |
10283 | case EXCP_HVC: | |
10284 | addr = 0x08; | |
10285 | break; | |
10286 | case EXCP_HYP_TRAP: | |
10287 | addr = 0x14; | |
9bbb4ef9 | 10288 | break; |
b9bc21ff PM |
10289 | default: |
10290 | cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index); | |
10291 | } | |
10292 | ||
10293 | if (cs->exception_index != EXCP_IRQ && cs->exception_index != EXCP_FIQ) { | |
2ed08180 PM |
10294 | if (!arm_feature(env, ARM_FEATURE_V8)) { |
10295 | /* | |
10296 | * QEMU syndrome values are v8-style. v7 has the IL bit | |
10297 | * UNK/SBZP for "field not valid" cases, where v8 uses RES1. | |
10298 | * If this is a v7 CPU, squash the IL bit in those cases. | |
10299 | */ | |
10300 | if (cs->exception_index == EXCP_PREFETCH_ABORT || | |
10301 | (cs->exception_index == EXCP_DATA_ABORT && | |
10302 | !(env->exception.syndrome & ARM_EL_ISV)) || | |
10303 | syn_get_ec(env->exception.syndrome) == EC_UNCATEGORIZED) { | |
10304 | env->exception.syndrome &= ~ARM_EL_IL; | |
10305 | } | |
10306 | } | |
b9bc21ff PM |
10307 | env->cp15.esr_el[2] = env->exception.syndrome; |
10308 | } | |
10309 | ||
10310 | if (arm_current_el(env) != 2 && addr < 0x14) { | |
10311 | addr = 0x14; | |
10312 | } | |
10313 | ||
10314 | mask = 0; | |
10315 | if (!(env->cp15.scr_el3 & SCR_EA)) { | |
10316 | mask |= CPSR_A; | |
10317 | } | |
10318 | if (!(env->cp15.scr_el3 & SCR_IRQ)) { | |
10319 | mask |= CPSR_I; | |
10320 | } | |
10321 | if (!(env->cp15.scr_el3 & SCR_FIQ)) { | |
10322 | mask |= CPSR_F; | |
10323 | } | |
10324 | ||
10325 | addr += env->cp15.hvbar; | |
10326 | ||
10327 | take_aarch32_exception(env, ARM_CPU_MODE_HYP, mask, 0, addr); | |
10328 | } | |
10329 | ||
966f758c | 10330 | static void arm_cpu_do_interrupt_aarch32(CPUState *cs) |
b5ff1b31 | 10331 | { |
97a8ea5a AF |
10332 | ARMCPU *cpu = ARM_CPU(cs); |
10333 | CPUARMState *env = &cpu->env; | |
b5ff1b31 FB |
10334 | uint32_t addr; |
10335 | uint32_t mask; | |
10336 | int new_mode; | |
10337 | uint32_t offset; | |
16a906fd | 10338 | uint32_t moe; |
b5ff1b31 | 10339 | |
16a906fd | 10340 | /* If this is a debug exception we must update the DBGDSCR.MOE bits */ |
64b91e3f | 10341 | switch (syn_get_ec(env->exception.syndrome)) { |
16a906fd PM |
10342 | case EC_BREAKPOINT: |
10343 | case EC_BREAKPOINT_SAME_EL: | |
10344 | moe = 1; | |
10345 | break; | |
10346 | case EC_WATCHPOINT: | |
10347 | case EC_WATCHPOINT_SAME_EL: | |
10348 | moe = 10; | |
10349 | break; | |
10350 | case EC_AA32_BKPT: | |
10351 | moe = 3; | |
10352 | break; | |
10353 | case EC_VECTORCATCH: | |
10354 | moe = 5; | |
10355 | break; | |
10356 | default: | |
10357 | moe = 0; | |
10358 | break; | |
10359 | } | |
10360 | ||
10361 | if (moe) { | |
10362 | env->cp15.mdscr_el1 = deposit64(env->cp15.mdscr_el1, 2, 4, moe); | |
10363 | } | |
10364 | ||
b9bc21ff PM |
10365 | if (env->exception.target_el == 2) { |
10366 | arm_cpu_do_interrupt_aarch32_hyp(cs); | |
10367 | return; | |
10368 | } | |
10369 | ||
27103424 | 10370 | switch (cs->exception_index) { |
b5ff1b31 FB |
10371 | case EXCP_UDEF: |
10372 | new_mode = ARM_CPU_MODE_UND; | |
10373 | addr = 0x04; | |
10374 | mask = CPSR_I; | |
f927dbda | 10375 | if (env->thumb) { |
b5ff1b31 | 10376 | offset = 2; |
f927dbda | 10377 | } else { |
b5ff1b31 | 10378 | offset = 4; |
f927dbda | 10379 | } |
b5ff1b31 FB |
10380 | break; |
10381 | case EXCP_SWI: | |
10382 | new_mode = ARM_CPU_MODE_SVC; | |
10383 | addr = 0x08; | |
10384 | mask = CPSR_I; | |
601d70b9 | 10385 | /* The PC already points to the next instruction. */ |
b5ff1b31 FB |
10386 | offset = 0; |
10387 | break; | |
06c949e6 | 10388 | case EXCP_BKPT: |
9ee6e8bb PB |
10389 | /* Fall through to prefetch abort. */ |
10390 | case EXCP_PREFETCH_ABORT: | |
88ca1c2d | 10391 | A32_BANKED_CURRENT_REG_SET(env, ifsr, env->exception.fsr); |
b848ce2b | 10392 | A32_BANKED_CURRENT_REG_SET(env, ifar, env->exception.vaddress); |
3f1beaca | 10393 | qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x IFAR 0x%x\n", |
88ca1c2d | 10394 | env->exception.fsr, (uint32_t)env->exception.vaddress); |
b5ff1b31 FB |
10395 | new_mode = ARM_CPU_MODE_ABT; |
10396 | addr = 0x0c; | |
10397 | mask = CPSR_A | CPSR_I; | |
10398 | offset = 4; | |
10399 | break; | |
10400 | case EXCP_DATA_ABORT: | |
4a7e2d73 | 10401 | A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr); |
b848ce2b | 10402 | A32_BANKED_CURRENT_REG_SET(env, dfar, env->exception.vaddress); |
3f1beaca | 10403 | qemu_log_mask(CPU_LOG_INT, "...with DFSR 0x%x DFAR 0x%x\n", |
4a7e2d73 | 10404 | env->exception.fsr, |
6cd8a264 | 10405 | (uint32_t)env->exception.vaddress); |
b5ff1b31 FB |
10406 | new_mode = ARM_CPU_MODE_ABT; |
10407 | addr = 0x10; | |
10408 | mask = CPSR_A | CPSR_I; | |
10409 | offset = 8; | |
10410 | break; | |
10411 | case EXCP_IRQ: | |
10412 | new_mode = ARM_CPU_MODE_IRQ; | |
10413 | addr = 0x18; | |
10414 | /* Disable IRQ and imprecise data aborts. */ | |
10415 | mask = CPSR_A | CPSR_I; | |
10416 | offset = 4; | |
de38d23b FA |
10417 | if (env->cp15.scr_el3 & SCR_IRQ) { |
10418 | /* IRQ routed to monitor mode */ | |
10419 | new_mode = ARM_CPU_MODE_MON; | |
10420 | mask |= CPSR_F; | |
10421 | } | |
b5ff1b31 FB |
10422 | break; |
10423 | case EXCP_FIQ: | |
10424 | new_mode = ARM_CPU_MODE_FIQ; | |
10425 | addr = 0x1c; | |
10426 | /* Disable FIQ, IRQ and imprecise data aborts. */ | |
10427 | mask = CPSR_A | CPSR_I | CPSR_F; | |
de38d23b FA |
10428 | if (env->cp15.scr_el3 & SCR_FIQ) { |
10429 | /* FIQ routed to monitor mode */ | |
10430 | new_mode = ARM_CPU_MODE_MON; | |
10431 | } | |
b5ff1b31 FB |
10432 | offset = 4; |
10433 | break; | |
87a4b270 PM |
10434 | case EXCP_VIRQ: |
10435 | new_mode = ARM_CPU_MODE_IRQ; | |
10436 | addr = 0x18; | |
10437 | /* Disable IRQ and imprecise data aborts. */ | |
10438 | mask = CPSR_A | CPSR_I; | |
10439 | offset = 4; | |
10440 | break; | |
10441 | case EXCP_VFIQ: | |
10442 | new_mode = ARM_CPU_MODE_FIQ; | |
10443 | addr = 0x1c; | |
10444 | /* Disable FIQ, IRQ and imprecise data aborts. */ | |
10445 | mask = CPSR_A | CPSR_I | CPSR_F; | |
10446 | offset = 4; | |
10447 | break; | |
3c29632f RH |
10448 | case EXCP_VSERR: |
10449 | { | |
10450 | /* | |
10451 | * Note that this is reported as a data abort, but the DFAR | |
10452 | * has an UNKNOWN value. Construct the SError syndrome from | |
10453 | * AET and ExT fields. | |
10454 | */ | |
10455 | ARMMMUFaultInfo fi = { .type = ARMFault_AsyncExternal, }; | |
10456 | ||
10457 | if (extended_addresses_enabled(env)) { | |
10458 | env->exception.fsr = arm_fi_to_lfsc(&fi); | |
10459 | } else { | |
10460 | env->exception.fsr = arm_fi_to_sfsc(&fi); | |
10461 | } | |
10462 | env->exception.fsr |= env->cp15.vsesr_el2 & 0xd000; | |
10463 | A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr); | |
10464 | qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x\n", | |
10465 | env->exception.fsr); | |
10466 | ||
10467 | new_mode = ARM_CPU_MODE_ABT; | |
10468 | addr = 0x10; | |
10469 | mask = CPSR_A | CPSR_I; | |
10470 | offset = 8; | |
10471 | } | |
10472 | break; | |
dbe9d163 FA |
10473 | case EXCP_SMC: |
10474 | new_mode = ARM_CPU_MODE_MON; | |
10475 | addr = 0x08; | |
10476 | mask = CPSR_A | CPSR_I | CPSR_F; | |
10477 | offset = 0; | |
10478 | break; | |
b5ff1b31 | 10479 | default: |
a47dddd7 | 10480 | cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index); |
b5ff1b31 FB |
10481 | return; /* Never happens. Keep compiler happy. */ |
10482 | } | |
e89e51a1 FA |
10483 | |
10484 | if (new_mode == ARM_CPU_MODE_MON) { | |
10485 | addr += env->cp15.mvbar; | |
137feaa9 | 10486 | } else if (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_V) { |
e89e51a1 | 10487 | /* High vectors. When enabled, base address cannot be remapped. */ |
b5ff1b31 | 10488 | addr += 0xffff0000; |
8641136c | 10489 | } else { |
9b37a28c FR |
10490 | /* |
10491 | * ARM v7 architectures provide a vector base address register to remap | |
8641136c | 10492 | * the interrupt vector table. |
e89e51a1 | 10493 | * This register is only followed in non-monitor mode, and is banked. |
8641136c NR |
10494 | * Note: only bits 31:5 are valid. |
10495 | */ | |
fb6c91ba | 10496 | addr += A32_BANKED_CURRENT_REG_GET(env, vbar); |
b5ff1b31 | 10497 | } |
dbe9d163 FA |
10498 | |
10499 | if ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_MON) { | |
10500 | env->cp15.scr_el3 &= ~SCR_NS; | |
10501 | } | |
10502 | ||
dea8378b | 10503 | take_aarch32_exception(env, new_mode, mask, offset, addr); |
b5ff1b31 FB |
10504 | } |
10505 | ||
a65dabf7 PM |
10506 | static int aarch64_regnum(CPUARMState *env, int aarch32_reg) |
10507 | { | |
10508 | /* | |
10509 | * Return the register number of the AArch64 view of the AArch32 | |
10510 | * register @aarch32_reg. The CPUARMState CPSR is assumed to still | |
10511 | * be that of the AArch32 mode the exception came from. | |
10512 | */ | |
10513 | int mode = env->uncached_cpsr & CPSR_M; | |
10514 | ||
10515 | switch (aarch32_reg) { | |
10516 | case 0 ... 7: | |
10517 | return aarch32_reg; | |
10518 | case 8 ... 12: | |
10519 | return mode == ARM_CPU_MODE_FIQ ? aarch32_reg + 16 : aarch32_reg; | |
10520 | case 13: | |
10521 | switch (mode) { | |
10522 | case ARM_CPU_MODE_USR: | |
10523 | case ARM_CPU_MODE_SYS: | |
10524 | return 13; | |
10525 | case ARM_CPU_MODE_HYP: | |
10526 | return 15; | |
10527 | case ARM_CPU_MODE_IRQ: | |
10528 | return 17; | |
10529 | case ARM_CPU_MODE_SVC: | |
10530 | return 19; | |
10531 | case ARM_CPU_MODE_ABT: | |
10532 | return 21; | |
10533 | case ARM_CPU_MODE_UND: | |
10534 | return 23; | |
10535 | case ARM_CPU_MODE_FIQ: | |
10536 | return 29; | |
10537 | default: | |
10538 | g_assert_not_reached(); | |
10539 | } | |
10540 | case 14: | |
10541 | switch (mode) { | |
10542 | case ARM_CPU_MODE_USR: | |
10543 | case ARM_CPU_MODE_SYS: | |
10544 | case ARM_CPU_MODE_HYP: | |
10545 | return 14; | |
10546 | case ARM_CPU_MODE_IRQ: | |
10547 | return 16; | |
10548 | case ARM_CPU_MODE_SVC: | |
10549 | return 18; | |
10550 | case ARM_CPU_MODE_ABT: | |
10551 | return 20; | |
10552 | case ARM_CPU_MODE_UND: | |
10553 | return 22; | |
10554 | case ARM_CPU_MODE_FIQ: | |
10555 | return 30; | |
10556 | default: | |
10557 | g_assert_not_reached(); | |
10558 | } | |
10559 | case 15: | |
10560 | return 31; | |
10561 | default: | |
10562 | g_assert_not_reached(); | |
10563 | } | |
10564 | } | |
10565 | ||
f944a854 RC |
10566 | static uint32_t cpsr_read_for_spsr_elx(CPUARMState *env) |
10567 | { | |
10568 | uint32_t ret = cpsr_read(env); | |
10569 | ||
10570 | /* Move DIT to the correct location for SPSR_ELx */ | |
10571 | if (ret & CPSR_DIT) { | |
10572 | ret &= ~CPSR_DIT; | |
10573 | ret |= PSTATE_DIT; | |
10574 | } | |
10575 | /* Merge PSTATE.SS into SPSR_ELx */ | |
10576 | ret |= env->pstate & PSTATE_SS; | |
10577 | ||
10578 | return ret; | |
10579 | } | |
10580 | ||
7ac61020 PM |
10581 | static bool syndrome_is_sync_extabt(uint32_t syndrome) |
10582 | { | |
10583 | /* Return true if this syndrome value is a synchronous external abort */ | |
10584 | switch (syn_get_ec(syndrome)) { | |
10585 | case EC_INSNABORT: | |
10586 | case EC_INSNABORT_SAME_EL: | |
10587 | case EC_DATAABORT: | |
10588 | case EC_DATAABORT_SAME_EL: | |
10589 | /* Look at fault status code for all the synchronous ext abort cases */ | |
10590 | switch (syndrome & 0x3f) { | |
10591 | case 0x10: | |
10592 | case 0x13: | |
10593 | case 0x14: | |
10594 | case 0x15: | |
10595 | case 0x16: | |
10596 | case 0x17: | |
10597 | return true; | |
10598 | default: | |
10599 | return false; | |
10600 | } | |
10601 | default: | |
10602 | return false; | |
10603 | } | |
10604 | } | |
10605 | ||
966f758c PM |
10606 | /* Handle exception entry to a target EL which is using AArch64 */ |
10607 | static void arm_cpu_do_interrupt_aarch64(CPUState *cs) | |
f3a9b694 PM |
10608 | { |
10609 | ARMCPU *cpu = ARM_CPU(cs); | |
10610 | CPUARMState *env = &cpu->env; | |
10611 | unsigned int new_el = env->exception.target_el; | |
10612 | target_ulong addr = env->cp15.vbar_el[new_el]; | |
10613 | unsigned int new_mode = aarch64_pstate_mode(new_el, true); | |
4a2696c0 | 10614 | unsigned int old_mode; |
0ab5953b | 10615 | unsigned int cur_el = arm_current_el(env); |
a65dabf7 | 10616 | int rt; |
0ab5953b | 10617 | |
9a05f7b6 RH |
10618 | /* |
10619 | * Note that new_el can never be 0. If cur_el is 0, then | |
10620 | * el0_a64 is is_a64(), else el0_a64 is ignored. | |
10621 | */ | |
10622 | aarch64_sve_change_el(env, cur_el, new_el, is_a64(env)); | |
f3a9b694 | 10623 | |
0ab5953b | 10624 | if (cur_el < new_el) { |
9b37a28c FR |
10625 | /* |
10626 | * Entry vector offset depends on whether the implemented EL | |
3d6f7617 PM |
10627 | * immediately lower than the target level is using AArch32 or AArch64 |
10628 | */ | |
10629 | bool is_aa64; | |
cb092fbb | 10630 | uint64_t hcr; |
3d6f7617 PM |
10631 | |
10632 | switch (new_el) { | |
10633 | case 3: | |
10634 | is_aa64 = (env->cp15.scr_el3 & SCR_RW) != 0; | |
10635 | break; | |
10636 | case 2: | |
cb092fbb RH |
10637 | hcr = arm_hcr_el2_eff(env); |
10638 | if ((hcr & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { | |
10639 | is_aa64 = (hcr & HCR_RW) != 0; | |
10640 | break; | |
10641 | } | |
10642 | /* fall through */ | |
3d6f7617 PM |
10643 | case 1: |
10644 | is_aa64 = is_a64(env); | |
10645 | break; | |
10646 | default: | |
10647 | g_assert_not_reached(); | |
10648 | } | |
10649 | ||
10650 | if (is_aa64) { | |
f3a9b694 PM |
10651 | addr += 0x400; |
10652 | } else { | |
10653 | addr += 0x600; | |
10654 | } | |
10655 | } else if (pstate_read(env) & PSTATE_SP) { | |
10656 | addr += 0x200; | |
10657 | } | |
10658 | ||
f3a9b694 PM |
10659 | switch (cs->exception_index) { |
10660 | case EXCP_PREFETCH_ABORT: | |
10661 | case EXCP_DATA_ABORT: | |
7ac61020 PM |
10662 | /* |
10663 | * FEAT_DoubleFault allows synchronous external aborts taken to EL3 | |
10664 | * to be taken to the SError vector entrypoint. | |
10665 | */ | |
10666 | if (new_el == 3 && (env->cp15.scr_el3 & SCR_EASE) && | |
10667 | syndrome_is_sync_extabt(env->exception.syndrome)) { | |
10668 | addr += 0x180; | |
10669 | } | |
f3a9b694 PM |
10670 | env->cp15.far_el[new_el] = env->exception.vaddress; |
10671 | qemu_log_mask(CPU_LOG_INT, "...with FAR 0x%" PRIx64 "\n", | |
10672 | env->cp15.far_el[new_el]); | |
10673 | /* fall through */ | |
10674 | case EXCP_BKPT: | |
10675 | case EXCP_UDEF: | |
10676 | case EXCP_SWI: | |
10677 | case EXCP_HVC: | |
10678 | case EXCP_HYP_TRAP: | |
10679 | case EXCP_SMC: | |
a65dabf7 PM |
10680 | switch (syn_get_ec(env->exception.syndrome)) { |
10681 | case EC_ADVSIMDFPACCESSTRAP: | |
4be42f40 PM |
10682 | /* |
10683 | * QEMU internal FP/SIMD syndromes from AArch32 include the | |
10684 | * TA and coproc fields which are only exposed if the exception | |
10685 | * is taken to AArch32 Hyp mode. Mask them out to get a valid | |
10686 | * AArch64 format syndrome. | |
10687 | */ | |
10688 | env->exception.syndrome &= ~MAKE_64BIT_MASK(0, 20); | |
a65dabf7 PM |
10689 | break; |
10690 | case EC_CP14RTTRAP: | |
10691 | case EC_CP15RTTRAP: | |
10692 | case EC_CP14DTTRAP: | |
10693 | /* | |
10694 | * For a trap on AArch32 MRC/MCR/LDC/STC the Rt field is currently | |
10695 | * the raw register field from the insn; when taking this to | |
10696 | * AArch64 we must convert it to the AArch64 view of the register | |
10697 | * number. Notice that we read a 4-bit AArch32 register number and | |
10698 | * write back a 5-bit AArch64 one. | |
10699 | */ | |
10700 | rt = extract32(env->exception.syndrome, 5, 4); | |
10701 | rt = aarch64_regnum(env, rt); | |
10702 | env->exception.syndrome = deposit32(env->exception.syndrome, | |
10703 | 5, 5, rt); | |
10704 | break; | |
10705 | case EC_CP15RRTTRAP: | |
10706 | case EC_CP14RRTTRAP: | |
10707 | /* Similarly for MRRC/MCRR traps for Rt and Rt2 fields */ | |
10708 | rt = extract32(env->exception.syndrome, 5, 4); | |
10709 | rt = aarch64_regnum(env, rt); | |
10710 | env->exception.syndrome = deposit32(env->exception.syndrome, | |
10711 | 5, 5, rt); | |
10712 | rt = extract32(env->exception.syndrome, 10, 4); | |
10713 | rt = aarch64_regnum(env, rt); | |
10714 | env->exception.syndrome = deposit32(env->exception.syndrome, | |
10715 | 10, 5, rt); | |
10716 | break; | |
4be42f40 | 10717 | } |
f3a9b694 PM |
10718 | env->cp15.esr_el[new_el] = env->exception.syndrome; |
10719 | break; | |
10720 | case EXCP_IRQ: | |
10721 | case EXCP_VIRQ: | |
10722 | addr += 0x80; | |
10723 | break; | |
10724 | case EXCP_FIQ: | |
10725 | case EXCP_VFIQ: | |
10726 | addr += 0x100; | |
10727 | break; | |
3c29632f RH |
10728 | case EXCP_VSERR: |
10729 | addr += 0x180; | |
10730 | /* Construct the SError syndrome from IDS and ISS fields. */ | |
10731 | env->exception.syndrome = syn_serror(env->cp15.vsesr_el2 & 0x1ffffff); | |
10732 | env->cp15.esr_el[new_el] = env->exception.syndrome; | |
10733 | break; | |
f3a9b694 PM |
10734 | default: |
10735 | cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index); | |
10736 | } | |
10737 | ||
10738 | if (is_a64(env)) { | |
4a2696c0 | 10739 | old_mode = pstate_read(env); |
f3a9b694 PM |
10740 | aarch64_save_sp(env, arm_current_el(env)); |
10741 | env->elr_el[new_el] = env->pc; | |
10742 | } else { | |
f944a854 | 10743 | old_mode = cpsr_read_for_spsr_elx(env); |
f3a9b694 PM |
10744 | env->elr_el[new_el] = env->regs[15]; |
10745 | ||
10746 | aarch64_sync_32_to_64(env); | |
10747 | ||
10748 | env->condexec_bits = 0; | |
10749 | } | |
4a2696c0 RH |
10750 | env->banked_spsr[aarch64_banked_spsr_index(new_el)] = old_mode; |
10751 | ||
f3a9b694 PM |
10752 | qemu_log_mask(CPU_LOG_INT, "...with ELR 0x%" PRIx64 "\n", |
10753 | env->elr_el[new_el]); | |
10754 | ||
4a2696c0 RH |
10755 | if (cpu_isar_feature(aa64_pan, cpu)) { |
10756 | /* The value of PSTATE.PAN is normally preserved, except when ... */ | |
10757 | new_mode |= old_mode & PSTATE_PAN; | |
10758 | switch (new_el) { | |
10759 | case 2: | |
10760 | /* ... the target is EL2 with HCR_EL2.{E2H,TGE} == '11' ... */ | |
10761 | if ((arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) | |
10762 | != (HCR_E2H | HCR_TGE)) { | |
10763 | break; | |
10764 | } | |
10765 | /* fall through */ | |
10766 | case 1: | |
10767 | /* ... the target is EL1 ... */ | |
10768 | /* ... and SCTLR_ELx.SPAN == 0, then set to 1. */ | |
10769 | if ((env->cp15.sctlr_el[new_el] & SCTLR_SPAN) == 0) { | |
10770 | new_mode |= PSTATE_PAN; | |
10771 | } | |
10772 | break; | |
10773 | } | |
10774 | } | |
34669338 RH |
10775 | if (cpu_isar_feature(aa64_mte, cpu)) { |
10776 | new_mode |= PSTATE_TCO; | |
10777 | } | |
4a2696c0 | 10778 | |
f2f68a78 RC |
10779 | if (cpu_isar_feature(aa64_ssbs, cpu)) { |
10780 | if (env->cp15.sctlr_el[new_el] & SCTLR_DSSBS_64) { | |
10781 | new_mode |= PSTATE_SSBS; | |
10782 | } else { | |
10783 | new_mode &= ~PSTATE_SSBS; | |
10784 | } | |
10785 | } | |
10786 | ||
f3a9b694 | 10787 | pstate_write(env, PSTATE_DAIF | new_mode); |
53221552 | 10788 | env->aarch64 = true; |
f3a9b694 | 10789 | aarch64_restore_sp(env, new_el); |
a8a79c7a | 10790 | helper_rebuild_hflags_a64(env, new_el); |
f3a9b694 PM |
10791 | |
10792 | env->pc = addr; | |
10793 | ||
10794 | qemu_log_mask(CPU_LOG_INT, "...to EL%d PC 0x%" PRIx64 " PSTATE 0x%x\n", | |
10795 | new_el, env->pc, pstate_read(env)); | |
966f758c PM |
10796 | } |
10797 | ||
ed6e6ba9 AB |
10798 | /* |
10799 | * Do semihosting call and set the appropriate return value. All the | |
10800 | * permission and validity checks have been done at translate time. | |
10801 | * | |
10802 | * We only see semihosting exceptions in TCG only as they are not | |
10803 | * trapped to the hypervisor in KVM. | |
10804 | */ | |
91f78c58 | 10805 | #ifdef CONFIG_TCG |
ed6e6ba9 AB |
10806 | static void handle_semihosting(CPUState *cs) |
10807 | { | |
904c04de PM |
10808 | ARMCPU *cpu = ARM_CPU(cs); |
10809 | CPUARMState *env = &cpu->env; | |
10810 | ||
10811 | if (is_a64(env)) { | |
ed6e6ba9 AB |
10812 | qemu_log_mask(CPU_LOG_INT, |
10813 | "...handling as semihosting call 0x%" PRIx64 "\n", | |
10814 | env->xregs[0]); | |
ed3a06b1 | 10815 | do_common_semihosting(cs); |
4ff5ef9e | 10816 | env->pc += 4; |
904c04de | 10817 | } else { |
904c04de PM |
10818 | qemu_log_mask(CPU_LOG_INT, |
10819 | "...handling as semihosting call 0x%x\n", | |
10820 | env->regs[0]); | |
ed3a06b1 | 10821 | do_common_semihosting(cs); |
4ff5ef9e | 10822 | env->regs[15] += env->thumb ? 2 : 4; |
904c04de PM |
10823 | } |
10824 | } | |
ed6e6ba9 | 10825 | #endif |
904c04de | 10826 | |
9b37a28c FR |
10827 | /* |
10828 | * Handle a CPU exception for A and R profile CPUs. | |
966f758c PM |
10829 | * Do any appropriate logging, handle PSCI calls, and then hand off |
10830 | * to the AArch64-entry or AArch32-entry function depending on the | |
10831 | * target exception level's register width. | |
853bfef4 CF |
10832 | * |
10833 | * Note: this is used for both TCG (as the do_interrupt tcg op), | |
10834 | * and KVM to re-inject guest debug exceptions, and to | |
10835 | * inject a Synchronous-External-Abort. | |
966f758c PM |
10836 | */ |
10837 | void arm_cpu_do_interrupt(CPUState *cs) | |
10838 | { | |
10839 | ARMCPU *cpu = ARM_CPU(cs); | |
10840 | CPUARMState *env = &cpu->env; | |
10841 | unsigned int new_el = env->exception.target_el; | |
10842 | ||
531c60a9 | 10843 | assert(!arm_feature(env, ARM_FEATURE_M)); |
966f758c | 10844 | |
fc6177af | 10845 | arm_log_exception(cs); |
966f758c PM |
10846 | qemu_log_mask(CPU_LOG_INT, "...from EL%d to EL%d\n", arm_current_el(env), |
10847 | new_el); | |
10848 | if (qemu_loglevel_mask(CPU_LOG_INT) | |
10849 | && !excp_is_internal(cs->exception_index)) { | |
6568da45 | 10850 | qemu_log_mask(CPU_LOG_INT, "...with ESR 0x%x/0x%" PRIx32 "\n", |
64b91e3f | 10851 | syn_get_ec(env->exception.syndrome), |
966f758c PM |
10852 | env->exception.syndrome); |
10853 | } | |
10854 | ||
10855 | if (arm_is_psci_call(cpu, cs->exception_index)) { | |
10856 | arm_handle_psci_call(cpu); | |
10857 | qemu_log_mask(CPU_LOG_INT, "...handled as PSCI call\n"); | |
10858 | return; | |
10859 | } | |
10860 | ||
ed6e6ba9 AB |
10861 | /* |
10862 | * Semihosting semantics depend on the register width of the code | |
10863 | * that caused the exception, not the target exception level, so | |
10864 | * must be handled here. | |
966f758c | 10865 | */ |
ed6e6ba9 AB |
10866 | #ifdef CONFIG_TCG |
10867 | if (cs->exception_index == EXCP_SEMIHOST) { | |
10868 | handle_semihosting(cs); | |
904c04de PM |
10869 | return; |
10870 | } | |
ed6e6ba9 | 10871 | #endif |
904c04de | 10872 | |
9b37a28c FR |
10873 | /* |
10874 | * Hooks may change global state so BQL should be held, also the | |
b5c53d1b AL |
10875 | * BQL needs to be held for any modification of |
10876 | * cs->interrupt_request. | |
10877 | */ | |
10878 | g_assert(qemu_mutex_iothread_locked()); | |
10879 | ||
10880 | arm_call_pre_el_change_hook(cpu); | |
10881 | ||
904c04de PM |
10882 | assert(!excp_is_internal(cs->exception_index)); |
10883 | if (arm_el_is_aa64(env, new_el)) { | |
966f758c PM |
10884 | arm_cpu_do_interrupt_aarch64(cs); |
10885 | } else { | |
10886 | arm_cpu_do_interrupt_aarch32(cs); | |
10887 | } | |
f3a9b694 | 10888 | |
bd7d00fc PM |
10889 | arm_call_el_change_hook(cpu); |
10890 | ||
f3a9b694 PM |
10891 | if (!kvm_enabled()) { |
10892 | cs->interrupt_request |= CPU_INTERRUPT_EXITTB; | |
10893 | } | |
10894 | } | |
c47eaf9f | 10895 | #endif /* !CONFIG_USER_ONLY */ |
0480f69a | 10896 | |
aaec1432 RH |
10897 | uint64_t arm_sctlr(CPUARMState *env, int el) |
10898 | { | |
10899 | /* Only EL0 needs to be adjusted for EL1&0 or EL2&0. */ | |
10900 | if (el == 0) { | |
10901 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, 0); | |
d902ae75 | 10902 | el = mmu_idx == ARMMMUIdx_E20_0 ? 2 : 1; |
aaec1432 RH |
10903 | } |
10904 | return env->cp15.sctlr_el[el]; | |
10905 | } | |
c47eaf9f | 10906 | |
8ae08860 | 10907 | int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx) |
b830a5ee RH |
10908 | { |
10909 | if (regime_has_2_ranges(mmu_idx)) { | |
10910 | return extract64(tcr, 37, 2); | |
edc05dd4 | 10911 | } else if (regime_is_stage2(mmu_idx)) { |
b830a5ee RH |
10912 | return 0; /* VTCR_EL2 */ |
10913 | } else { | |
3e270f67 RH |
10914 | /* Replicate the single TBI bit so we always have 2 bits. */ |
10915 | return extract32(tcr, 20, 1) * 3; | |
b830a5ee RH |
10916 | } |
10917 | } | |
10918 | ||
8ae08860 | 10919 | int aa64_va_parameter_tbid(uint64_t tcr, ARMMMUIdx mmu_idx) |
b830a5ee RH |
10920 | { |
10921 | if (regime_has_2_ranges(mmu_idx)) { | |
10922 | return extract64(tcr, 51, 2); | |
edc05dd4 | 10923 | } else if (regime_is_stage2(mmu_idx)) { |
b830a5ee RH |
10924 | return 0; /* VTCR_EL2 */ |
10925 | } else { | |
3e270f67 RH |
10926 | /* Replicate the single TBID bit so we always have 2 bits. */ |
10927 | return extract32(tcr, 29, 1) * 3; | |
b830a5ee RH |
10928 | } |
10929 | } | |
10930 | ||
81ae05fa RH |
10931 | static int aa64_va_parameter_tcma(uint64_t tcr, ARMMMUIdx mmu_idx) |
10932 | { | |
10933 | if (regime_has_2_ranges(mmu_idx)) { | |
10934 | return extract64(tcr, 57, 2); | |
10935 | } else { | |
10936 | /* Replicate the single TCMA bit so we always have 2 bits. */ | |
10937 | return extract32(tcr, 30, 1) * 3; | |
10938 | } | |
10939 | } | |
10940 | ||
104f703d PM |
10941 | static ARMGranuleSize tg0_to_gran_size(int tg) |
10942 | { | |
10943 | switch (tg) { | |
10944 | case 0: | |
10945 | return Gran4K; | |
10946 | case 1: | |
10947 | return Gran64K; | |
10948 | case 2: | |
10949 | return Gran16K; | |
10950 | default: | |
10951 | return GranInvalid; | |
10952 | } | |
10953 | } | |
10954 | ||
10955 | static ARMGranuleSize tg1_to_gran_size(int tg) | |
10956 | { | |
10957 | switch (tg) { | |
10958 | case 1: | |
10959 | return Gran16K; | |
10960 | case 2: | |
10961 | return Gran4K; | |
10962 | case 3: | |
10963 | return Gran64K; | |
10964 | default: | |
10965 | return GranInvalid; | |
10966 | } | |
10967 | } | |
10968 | ||
10969 | static inline bool have4k(ARMCPU *cpu, bool stage2) | |
10970 | { | |
10971 | return stage2 ? cpu_isar_feature(aa64_tgran4_2, cpu) | |
10972 | : cpu_isar_feature(aa64_tgran4, cpu); | |
10973 | } | |
10974 | ||
10975 | static inline bool have16k(ARMCPU *cpu, bool stage2) | |
10976 | { | |
10977 | return stage2 ? cpu_isar_feature(aa64_tgran16_2, cpu) | |
10978 | : cpu_isar_feature(aa64_tgran16, cpu); | |
10979 | } | |
10980 | ||
10981 | static inline bool have64k(ARMCPU *cpu, bool stage2) | |
10982 | { | |
10983 | return stage2 ? cpu_isar_feature(aa64_tgran64_2, cpu) | |
10984 | : cpu_isar_feature(aa64_tgran64, cpu); | |
10985 | } | |
10986 | ||
10987 | static ARMGranuleSize sanitize_gran_size(ARMCPU *cpu, ARMGranuleSize gran, | |
10988 | bool stage2) | |
10989 | { | |
10990 | switch (gran) { | |
10991 | case Gran4K: | |
10992 | if (have4k(cpu, stage2)) { | |
10993 | return gran; | |
10994 | } | |
10995 | break; | |
10996 | case Gran16K: | |
10997 | if (have16k(cpu, stage2)) { | |
10998 | return gran; | |
10999 | } | |
11000 | break; | |
11001 | case Gran64K: | |
11002 | if (have64k(cpu, stage2)) { | |
11003 | return gran; | |
11004 | } | |
11005 | break; | |
11006 | case GranInvalid: | |
11007 | break; | |
11008 | } | |
11009 | /* | |
11010 | * If the guest selects a granule size that isn't implemented, | |
11011 | * the architecture requires that we behave as if it selected one | |
11012 | * that is (with an IMPDEF choice of which one to pick). We choose | |
11013 | * to implement the smallest supported granule size. | |
11014 | */ | |
11015 | if (have4k(cpu, stage2)) { | |
11016 | return Gran4K; | |
11017 | } | |
11018 | if (have16k(cpu, stage2)) { | |
11019 | return Gran16K; | |
11020 | } | |
11021 | assert(have64k(cpu, stage2)); | |
11022 | return Gran64K; | |
11023 | } | |
11024 | ||
b830a5ee RH |
11025 | ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va, |
11026 | ARMMMUIdx mmu_idx, bool data) | |
ba97be9f | 11027 | { |
c1547bba | 11028 | uint64_t tcr = regime_tcr(env, mmu_idx); |
89739227 | 11029 | bool epd, hpd, tsz_oob, ds, ha, hd; |
ef56c242 | 11030 | int select, tsz, tbi, max_tsz, min_tsz, ps, sh; |
104f703d | 11031 | ARMGranuleSize gran; |
ef56c242 | 11032 | ARMCPU *cpu = env_archcpu(env); |
edc05dd4 | 11033 | bool stage2 = regime_is_stage2(mmu_idx); |
ba97be9f | 11034 | |
339370b9 | 11035 | if (!regime_has_2_ranges(mmu_idx)) { |
71d18164 | 11036 | select = 0; |
ba97be9f | 11037 | tsz = extract32(tcr, 0, 6); |
104f703d PM |
11038 | gran = tg0_to_gran_size(extract32(tcr, 14, 2)); |
11039 | if (stage2) { | |
ba97be9f | 11040 | /* VTCR_EL2 */ |
b830a5ee | 11041 | hpd = false; |
ba97be9f | 11042 | } else { |
ba97be9f RH |
11043 | hpd = extract32(tcr, 24, 1); |
11044 | } | |
11045 | epd = false; | |
ef56c242 | 11046 | sh = extract32(tcr, 12, 2); |
f4ecc015 | 11047 | ps = extract32(tcr, 16, 3); |
89739227 RH |
11048 | ha = extract32(tcr, 21, 1) && cpu_isar_feature(aa64_hafs, cpu); |
11049 | hd = extract32(tcr, 22, 1) && cpu_isar_feature(aa64_hdbs, cpu); | |
ef56c242 | 11050 | ds = extract64(tcr, 32, 1); |
ba97be9f | 11051 | } else { |
e4c93e44 PM |
11052 | bool e0pd; |
11053 | ||
71d18164 RH |
11054 | /* |
11055 | * Bit 55 is always between the two regions, and is canonical for | |
11056 | * determining if address tagging is enabled. | |
11057 | */ | |
11058 | select = extract64(va, 55, 1); | |
11059 | if (!select) { | |
11060 | tsz = extract32(tcr, 0, 6); | |
104f703d | 11061 | gran = tg0_to_gran_size(extract32(tcr, 14, 2)); |
71d18164 | 11062 | epd = extract32(tcr, 7, 1); |
ef56c242 | 11063 | sh = extract32(tcr, 12, 2); |
71d18164 | 11064 | hpd = extract64(tcr, 41, 1); |
e4c93e44 | 11065 | e0pd = extract64(tcr, 55, 1); |
71d18164 | 11066 | } else { |
71d18164 | 11067 | tsz = extract32(tcr, 16, 6); |
104f703d | 11068 | gran = tg1_to_gran_size(extract32(tcr, 30, 2)); |
71d18164 | 11069 | epd = extract32(tcr, 23, 1); |
ef56c242 | 11070 | sh = extract32(tcr, 28, 2); |
71d18164 | 11071 | hpd = extract64(tcr, 42, 1); |
e4c93e44 | 11072 | e0pd = extract64(tcr, 56, 1); |
71d18164 | 11073 | } |
f4ecc015 | 11074 | ps = extract64(tcr, 32, 3); |
89739227 RH |
11075 | ha = extract64(tcr, 39, 1) && cpu_isar_feature(aa64_hafs, cpu); |
11076 | hd = extract64(tcr, 40, 1) && cpu_isar_feature(aa64_hdbs, cpu); | |
ef56c242 | 11077 | ds = extract64(tcr, 59, 1); |
e4c93e44 PM |
11078 | |
11079 | if (e0pd && cpu_isar_feature(aa64_e0pd, cpu) && | |
11080 | regime_is_user(env, mmu_idx)) { | |
11081 | epd = true; | |
11082 | } | |
ba97be9f | 11083 | } |
c36c65ea | 11084 | |
104f703d | 11085 | gran = sanitize_gran_size(cpu, gran, stage2); |
104f703d | 11086 | |
ef56c242 | 11087 | if (cpu_isar_feature(aa64_st, cpu)) { |
3c003f70 | 11088 | max_tsz = 48 - (gran == Gran64K); |
c36c65ea RDC |
11089 | } else { |
11090 | max_tsz = 39; | |
11091 | } | |
0af312b6 | 11092 | |
ef56c242 RH |
11093 | /* |
11094 | * DS is RES0 unless FEAT_LPA2 is supported for the given page size; | |
11095 | * adjust the effective value of DS, as documented. | |
11096 | */ | |
0af312b6 | 11097 | min_tsz = 16; |
3c003f70 | 11098 | if (gran == Gran64K) { |
ef56c242 RH |
11099 | if (cpu_isar_feature(aa64_lva, cpu)) { |
11100 | min_tsz = 12; | |
11101 | } | |
11102 | ds = false; | |
11103 | } else if (ds) { | |
edc05dd4 | 11104 | if (regime_is_stage2(mmu_idx)) { |
3c003f70 | 11105 | if (gran == Gran16K) { |
ef56c242 RH |
11106 | ds = cpu_isar_feature(aa64_tgran16_2_lpa2, cpu); |
11107 | } else { | |
11108 | ds = cpu_isar_feature(aa64_tgran4_2_lpa2, cpu); | |
11109 | } | |
edc05dd4 | 11110 | } else { |
3c003f70 | 11111 | if (gran == Gran16K) { |
ef56c242 RH |
11112 | ds = cpu_isar_feature(aa64_tgran16_lpa2, cpu); |
11113 | } else { | |
11114 | ds = cpu_isar_feature(aa64_tgran4_lpa2, cpu); | |
11115 | } | |
ef56c242 RH |
11116 | } |
11117 | if (ds) { | |
0af312b6 RH |
11118 | min_tsz = 12; |
11119 | } | |
11120 | } | |
c36c65ea | 11121 | |
ebf93ce7 RH |
11122 | if (tsz > max_tsz) { |
11123 | tsz = max_tsz; | |
11124 | tsz_oob = true; | |
11125 | } else if (tsz < min_tsz) { | |
11126 | tsz = min_tsz; | |
11127 | tsz_oob = true; | |
11128 | } else { | |
11129 | tsz_oob = false; | |
11130 | } | |
ba97be9f | 11131 | |
b830a5ee RH |
11132 | /* Present TBI as a composite with TBID. */ |
11133 | tbi = aa64_va_parameter_tbi(tcr, mmu_idx); | |
11134 | if (!data) { | |
11135 | tbi &= ~aa64_va_parameter_tbid(tcr, mmu_idx); | |
11136 | } | |
11137 | tbi = (tbi >> select) & 1; | |
11138 | ||
ba97be9f RH |
11139 | return (ARMVAParameters) { |
11140 | .tsz = tsz, | |
f4ecc015 | 11141 | .ps = ps, |
ef56c242 | 11142 | .sh = sh, |
ba97be9f RH |
11143 | .select = select, |
11144 | .tbi = tbi, | |
11145 | .epd = epd, | |
11146 | .hpd = hpd, | |
ebf93ce7 | 11147 | .tsz_oob = tsz_oob, |
ef56c242 | 11148 | .ds = ds, |
89739227 RH |
11149 | .ha = ha, |
11150 | .hd = ha && hd, | |
3c003f70 | 11151 | .gran = gran, |
ba97be9f RH |
11152 | }; |
11153 | } | |
11154 | ||
9b37a28c FR |
11155 | /* |
11156 | * Note that signed overflow is undefined in C. The following routines are | |
11157 | * careful to use unsigned types where modulo arithmetic is required. | |
11158 | * Failure to do so _will_ break on newer gcc. | |
11159 | */ | |
6ddbc6e4 PB |
11160 | |
11161 | /* Signed saturating arithmetic. */ | |
11162 | ||
1654b2d6 | 11163 | /* Perform 16-bit signed saturating addition. */ |
6ddbc6e4 PB |
11164 | static inline uint16_t add16_sat(uint16_t a, uint16_t b) |
11165 | { | |
11166 | uint16_t res; | |
11167 | ||
11168 | res = a + b; | |
11169 | if (((res ^ a) & 0x8000) && !((a ^ b) & 0x8000)) { | |
f927dbda | 11170 | if (a & 0x8000) { |
6ddbc6e4 | 11171 | res = 0x8000; |
f927dbda | 11172 | } else { |
6ddbc6e4 | 11173 | res = 0x7fff; |
f927dbda | 11174 | } |
6ddbc6e4 PB |
11175 | } |
11176 | return res; | |
11177 | } | |
11178 | ||
1654b2d6 | 11179 | /* Perform 8-bit signed saturating addition. */ |
6ddbc6e4 PB |
11180 | static inline uint8_t add8_sat(uint8_t a, uint8_t b) |
11181 | { | |
11182 | uint8_t res; | |
11183 | ||
11184 | res = a + b; | |
11185 | if (((res ^ a) & 0x80) && !((a ^ b) & 0x80)) { | |
f927dbda | 11186 | if (a & 0x80) { |
6ddbc6e4 | 11187 | res = 0x80; |
f927dbda | 11188 | } else { |
6ddbc6e4 | 11189 | res = 0x7f; |
f927dbda | 11190 | } |
6ddbc6e4 PB |
11191 | } |
11192 | return res; | |
11193 | } | |
11194 | ||
1654b2d6 | 11195 | /* Perform 16-bit signed saturating subtraction. */ |
6ddbc6e4 PB |
11196 | static inline uint16_t sub16_sat(uint16_t a, uint16_t b) |
11197 | { | |
11198 | uint16_t res; | |
11199 | ||
11200 | res = a - b; | |
11201 | if (((res ^ a) & 0x8000) && ((a ^ b) & 0x8000)) { | |
f927dbda | 11202 | if (a & 0x8000) { |
6ddbc6e4 | 11203 | res = 0x8000; |
f927dbda | 11204 | } else { |
6ddbc6e4 | 11205 | res = 0x7fff; |
f927dbda | 11206 | } |
6ddbc6e4 PB |
11207 | } |
11208 | return res; | |
11209 | } | |
11210 | ||
1654b2d6 | 11211 | /* Perform 8-bit signed saturating subtraction. */ |
6ddbc6e4 PB |
11212 | static inline uint8_t sub8_sat(uint8_t a, uint8_t b) |
11213 | { | |
11214 | uint8_t res; | |
11215 | ||
11216 | res = a - b; | |
11217 | if (((res ^ a) & 0x80) && ((a ^ b) & 0x80)) { | |
f927dbda | 11218 | if (a & 0x80) { |
6ddbc6e4 | 11219 | res = 0x80; |
f927dbda | 11220 | } else { |
6ddbc6e4 | 11221 | res = 0x7f; |
f927dbda | 11222 | } |
6ddbc6e4 PB |
11223 | } |
11224 | return res; | |
11225 | } | |
11226 | ||
11227 | #define ADD16(a, b, n) RESULT(add16_sat(a, b), n, 16); | |
11228 | #define SUB16(a, b, n) RESULT(sub16_sat(a, b), n, 16); | |
11229 | #define ADD8(a, b, n) RESULT(add8_sat(a, b), n, 8); | |
11230 | #define SUB8(a, b, n) RESULT(sub8_sat(a, b), n, 8); | |
11231 | #define PFX q | |
11232 | ||
11233 | #include "op_addsub.h" | |
11234 | ||
11235 | /* Unsigned saturating arithmetic. */ | |
460a09c1 | 11236 | static inline uint16_t add16_usat(uint16_t a, uint16_t b) |
6ddbc6e4 PB |
11237 | { |
11238 | uint16_t res; | |
11239 | res = a + b; | |
f927dbda | 11240 | if (res < a) { |
6ddbc6e4 | 11241 | res = 0xffff; |
f927dbda | 11242 | } |
6ddbc6e4 PB |
11243 | return res; |
11244 | } | |
11245 | ||
460a09c1 | 11246 | static inline uint16_t sub16_usat(uint16_t a, uint16_t b) |
6ddbc6e4 | 11247 | { |
f927dbda | 11248 | if (a > b) { |
6ddbc6e4 | 11249 | return a - b; |
f927dbda | 11250 | } else { |
6ddbc6e4 | 11251 | return 0; |
f927dbda | 11252 | } |
6ddbc6e4 PB |
11253 | } |
11254 | ||
11255 | static inline uint8_t add8_usat(uint8_t a, uint8_t b) | |
11256 | { | |
11257 | uint8_t res; | |
11258 | res = a + b; | |
f927dbda | 11259 | if (res < a) { |
6ddbc6e4 | 11260 | res = 0xff; |
f927dbda | 11261 | } |
6ddbc6e4 PB |
11262 | return res; |
11263 | } | |
11264 | ||
11265 | static inline uint8_t sub8_usat(uint8_t a, uint8_t b) | |
11266 | { | |
f927dbda | 11267 | if (a > b) { |
6ddbc6e4 | 11268 | return a - b; |
f927dbda | 11269 | } else { |
6ddbc6e4 | 11270 | return 0; |
f927dbda | 11271 | } |
6ddbc6e4 PB |
11272 | } |
11273 | ||
11274 | #define ADD16(a, b, n) RESULT(add16_usat(a, b), n, 16); | |
11275 | #define SUB16(a, b, n) RESULT(sub16_usat(a, b), n, 16); | |
11276 | #define ADD8(a, b, n) RESULT(add8_usat(a, b), n, 8); | |
11277 | #define SUB8(a, b, n) RESULT(sub8_usat(a, b), n, 8); | |
11278 | #define PFX uq | |
11279 | ||
11280 | #include "op_addsub.h" | |
11281 | ||
11282 | /* Signed modulo arithmetic. */ | |
11283 | #define SARITH16(a, b, n, op) do { \ | |
11284 | int32_t sum; \ | |
db6e2e65 | 11285 | sum = (int32_t)(int16_t)(a) op (int32_t)(int16_t)(b); \ |
6ddbc6e4 PB |
11286 | RESULT(sum, n, 16); \ |
11287 | if (sum >= 0) \ | |
11288 | ge |= 3 << (n * 2); \ | |
04215eb1 | 11289 | } while (0) |
6ddbc6e4 PB |
11290 | |
11291 | #define SARITH8(a, b, n, op) do { \ | |
11292 | int32_t sum; \ | |
db6e2e65 | 11293 | sum = (int32_t)(int8_t)(a) op (int32_t)(int8_t)(b); \ |
6ddbc6e4 PB |
11294 | RESULT(sum, n, 8); \ |
11295 | if (sum >= 0) \ | |
11296 | ge |= 1 << n; \ | |
04215eb1 | 11297 | } while (0) |
6ddbc6e4 PB |
11298 | |
11299 | ||
11300 | #define ADD16(a, b, n) SARITH16(a, b, n, +) | |
11301 | #define SUB16(a, b, n) SARITH16(a, b, n, -) | |
11302 | #define ADD8(a, b, n) SARITH8(a, b, n, +) | |
11303 | #define SUB8(a, b, n) SARITH8(a, b, n, -) | |
11304 | #define PFX s | |
11305 | #define ARITH_GE | |
11306 | ||
11307 | #include "op_addsub.h" | |
11308 | ||
11309 | /* Unsigned modulo arithmetic. */ | |
11310 | #define ADD16(a, b, n) do { \ | |
11311 | uint32_t sum; \ | |
11312 | sum = (uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b); \ | |
11313 | RESULT(sum, n, 16); \ | |
a87aa10b | 11314 | if ((sum >> 16) == 1) \ |
6ddbc6e4 | 11315 | ge |= 3 << (n * 2); \ |
04215eb1 | 11316 | } while (0) |
6ddbc6e4 PB |
11317 | |
11318 | #define ADD8(a, b, n) do { \ | |
11319 | uint32_t sum; \ | |
11320 | sum = (uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b); \ | |
11321 | RESULT(sum, n, 8); \ | |
a87aa10b AZ |
11322 | if ((sum >> 8) == 1) \ |
11323 | ge |= 1 << n; \ | |
04215eb1 | 11324 | } while (0) |
6ddbc6e4 PB |
11325 | |
11326 | #define SUB16(a, b, n) do { \ | |
11327 | uint32_t sum; \ | |
11328 | sum = (uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b); \ | |
11329 | RESULT(sum, n, 16); \ | |
11330 | if ((sum >> 16) == 0) \ | |
11331 | ge |= 3 << (n * 2); \ | |
04215eb1 | 11332 | } while (0) |
6ddbc6e4 PB |
11333 | |
11334 | #define SUB8(a, b, n) do { \ | |
11335 | uint32_t sum; \ | |
11336 | sum = (uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b); \ | |
11337 | RESULT(sum, n, 8); \ | |
11338 | if ((sum >> 8) == 0) \ | |
a87aa10b | 11339 | ge |= 1 << n; \ |
04215eb1 | 11340 | } while (0) |
6ddbc6e4 PB |
11341 | |
11342 | #define PFX u | |
11343 | #define ARITH_GE | |
11344 | ||
11345 | #include "op_addsub.h" | |
11346 | ||
11347 | /* Halved signed arithmetic. */ | |
11348 | #define ADD16(a, b, n) \ | |
11349 | RESULT(((int32_t)(int16_t)(a) + (int32_t)(int16_t)(b)) >> 1, n, 16) | |
11350 | #define SUB16(a, b, n) \ | |
11351 | RESULT(((int32_t)(int16_t)(a) - (int32_t)(int16_t)(b)) >> 1, n, 16) | |
11352 | #define ADD8(a, b, n) \ | |
11353 | RESULT(((int32_t)(int8_t)(a) + (int32_t)(int8_t)(b)) >> 1, n, 8) | |
11354 | #define SUB8(a, b, n) \ | |
11355 | RESULT(((int32_t)(int8_t)(a) - (int32_t)(int8_t)(b)) >> 1, n, 8) | |
11356 | #define PFX sh | |
11357 | ||
11358 | #include "op_addsub.h" | |
11359 | ||
11360 | /* Halved unsigned arithmetic. */ | |
11361 | #define ADD16(a, b, n) \ | |
11362 | RESULT(((uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b)) >> 1, n, 16) | |
11363 | #define SUB16(a, b, n) \ | |
11364 | RESULT(((uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b)) >> 1, n, 16) | |
11365 | #define ADD8(a, b, n) \ | |
11366 | RESULT(((uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b)) >> 1, n, 8) | |
11367 | #define SUB8(a, b, n) \ | |
11368 | RESULT(((uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b)) >> 1, n, 8) | |
11369 | #define PFX uh | |
11370 | ||
11371 | #include "op_addsub.h" | |
11372 | ||
11373 | static inline uint8_t do_usad(uint8_t a, uint8_t b) | |
11374 | { | |
f927dbda | 11375 | if (a > b) { |
6ddbc6e4 | 11376 | return a - b; |
f927dbda | 11377 | } else { |
6ddbc6e4 | 11378 | return b - a; |
f927dbda | 11379 | } |
6ddbc6e4 PB |
11380 | } |
11381 | ||
11382 | /* Unsigned sum of absolute byte differences. */ | |
11383 | uint32_t HELPER(usad8)(uint32_t a, uint32_t b) | |
11384 | { | |
11385 | uint32_t sum; | |
11386 | sum = do_usad(a, b); | |
11387 | sum += do_usad(a >> 8, b >> 8); | |
bdc3b6f5 | 11388 | sum += do_usad(a >> 16, b >> 16); |
6ddbc6e4 PB |
11389 | sum += do_usad(a >> 24, b >> 24); |
11390 | return sum; | |
11391 | } | |
11392 | ||
11393 | /* For ARMv6 SEL instruction. */ | |
11394 | uint32_t HELPER(sel_flags)(uint32_t flags, uint32_t a, uint32_t b) | |
11395 | { | |
11396 | uint32_t mask; | |
11397 | ||
11398 | mask = 0; | |
f927dbda | 11399 | if (flags & 1) { |
6ddbc6e4 | 11400 | mask |= 0xff; |
f927dbda FR |
11401 | } |
11402 | if (flags & 2) { | |
6ddbc6e4 | 11403 | mask |= 0xff00; |
f927dbda FR |
11404 | } |
11405 | if (flags & 4) { | |
6ddbc6e4 | 11406 | mask |= 0xff0000; |
f927dbda FR |
11407 | } |
11408 | if (flags & 8) { | |
6ddbc6e4 | 11409 | mask |= 0xff000000; |
f927dbda | 11410 | } |
6ddbc6e4 PB |
11411 | return (a & mask) | (b & ~mask); |
11412 | } | |
11413 | ||
9b37a28c FR |
11414 | /* |
11415 | * CRC helpers. | |
aa633469 PM |
11416 | * The upper bytes of val (above the number specified by 'bytes') must have |
11417 | * been zeroed out by the caller. | |
11418 | */ | |
eb0ecd5a WN |
11419 | uint32_t HELPER(crc32)(uint32_t acc, uint32_t val, uint32_t bytes) |
11420 | { | |
11421 | uint8_t buf[4]; | |
11422 | ||
aa633469 | 11423 | stl_le_p(buf, val); |
eb0ecd5a WN |
11424 | |
11425 | /* zlib crc32 converts the accumulator and output to one's complement. */ | |
11426 | return crc32(acc ^ 0xffffffff, buf, bytes) ^ 0xffffffff; | |
11427 | } | |
11428 | ||
11429 | uint32_t HELPER(crc32c)(uint32_t acc, uint32_t val, uint32_t bytes) | |
11430 | { | |
11431 | uint8_t buf[4]; | |
11432 | ||
aa633469 | 11433 | stl_le_p(buf, val); |
eb0ecd5a WN |
11434 | |
11435 | /* Linux crc32c converts the output to one's complement. */ | |
11436 | return crc32c(acc, buf, bytes) ^ 0xffffffff; | |
11437 | } | |
a9e01311 | 11438 | |
9b37a28c FR |
11439 | /* |
11440 | * Return the exception level to which FP-disabled exceptions should | |
a9e01311 RH |
11441 | * be taken, or 0 if FP is enabled. |
11442 | */ | |
ced31551 | 11443 | int fp_exception_el(CPUARMState *env, int cur_el) |
a9e01311 | 11444 | { |
55faa212 | 11445 | #ifndef CONFIG_USER_ONLY |
d5a6fa2d RH |
11446 | uint64_t hcr_el2; |
11447 | ||
9b37a28c FR |
11448 | /* |
11449 | * CPACR and the CPTR registers don't exist before v6, so FP is | |
a9e01311 RH |
11450 | * always accessible |
11451 | */ | |
11452 | if (!arm_feature(env, ARM_FEATURE_V6)) { | |
11453 | return 0; | |
11454 | } | |
11455 | ||
d87513c0 PM |
11456 | if (arm_feature(env, ARM_FEATURE_M)) { |
11457 | /* CPACR can cause a NOCP UsageFault taken to current security state */ | |
11458 | if (!v7m_cpacr_pass(env, env->v7m.secure, cur_el != 0)) { | |
11459 | return 1; | |
11460 | } | |
11461 | ||
11462 | if (arm_feature(env, ARM_FEATURE_M_SECURITY) && !env->v7m.secure) { | |
11463 | if (!extract32(env->v7m.nsacr, 10, 1)) { | |
11464 | /* FP insns cause a NOCP UsageFault taken to Secure */ | |
11465 | return 3; | |
11466 | } | |
11467 | } | |
11468 | ||
11469 | return 0; | |
11470 | } | |
11471 | ||
d5a6fa2d RH |
11472 | hcr_el2 = arm_hcr_el2_eff(env); |
11473 | ||
9b37a28c FR |
11474 | /* |
11475 | * The CPACR controls traps to EL1, or PL1 if we're 32 bit: | |
a9e01311 RH |
11476 | * 0, 2 : trap EL0 and EL1/PL1 accesses |
11477 | * 1 : trap only EL0 accesses | |
11478 | * 3 : trap no accesses | |
c2ddb7cf | 11479 | * This register is ignored if E2H+TGE are both set. |
a9e01311 | 11480 | */ |
d5a6fa2d | 11481 | if ((hcr_el2 & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { |
fab8ad39 | 11482 | int fpen = FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, FPEN); |
c2ddb7cf RH |
11483 | |
11484 | switch (fpen) { | |
02e1de14 RH |
11485 | case 1: |
11486 | if (cur_el != 0) { | |
11487 | break; | |
11488 | } | |
11489 | /* fall through */ | |
c2ddb7cf RH |
11490 | case 0: |
11491 | case 2: | |
02e1de14 RH |
11492 | /* Trap from Secure PL0 or PL1 to Secure PL1. */ |
11493 | if (!arm_el_is_aa64(env, 3) | |
11494 | && (cur_el == 3 || arm_is_secure_below_el3(env))) { | |
a9e01311 RH |
11495 | return 3; |
11496 | } | |
02e1de14 | 11497 | if (cur_el <= 1) { |
c2ddb7cf RH |
11498 | return 1; |
11499 | } | |
11500 | break; | |
a9e01311 | 11501 | } |
a9e01311 RH |
11502 | } |
11503 | ||
fc1120a7 PM |
11504 | /* |
11505 | * The NSACR allows A-profile AArch32 EL3 and M-profile secure mode | |
11506 | * to control non-secure access to the FPU. It doesn't have any | |
11507 | * effect if EL3 is AArch64 or if EL3 doesn't exist at all. | |
11508 | */ | |
11509 | if ((arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
11510 | cur_el <= 2 && !arm_is_secure_below_el3(env))) { | |
11511 | if (!extract32(env->cp15.nsacr, 10, 1)) { | |
11512 | /* FP insns act as UNDEF */ | |
11513 | return cur_el == 2 ? 2 : 1; | |
11514 | } | |
11515 | } | |
11516 | ||
d5a6fa2d RH |
11517 | /* |
11518 | * CPTR_EL2 is present in v7VE or v8, and changes format | |
11519 | * with HCR_EL2.E2H (regardless of TGE). | |
a9e01311 | 11520 | */ |
d5a6fa2d RH |
11521 | if (cur_el <= 2) { |
11522 | if (hcr_el2 & HCR_E2H) { | |
fab8ad39 | 11523 | switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, FPEN)) { |
d5a6fa2d RH |
11524 | case 1: |
11525 | if (cur_el != 0 || !(hcr_el2 & HCR_TGE)) { | |
11526 | break; | |
11527 | } | |
11528 | /* fall through */ | |
11529 | case 0: | |
11530 | case 2: | |
11531 | return 2; | |
11532 | } | |
11533 | } else if (arm_is_el2_enabled(env)) { | |
fab8ad39 | 11534 | if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TFP)) { |
d5a6fa2d RH |
11535 | return 2; |
11536 | } | |
11537 | } | |
a9e01311 RH |
11538 | } |
11539 | ||
11540 | /* CPTR_EL3 : present in v8 */ | |
fab8ad39 | 11541 | if (FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, TFP)) { |
a9e01311 RH |
11542 | /* Trap all FP ops to EL3 */ |
11543 | return 3; | |
11544 | } | |
55faa212 | 11545 | #endif |
a9e01311 RH |
11546 | return 0; |
11547 | } | |
11548 | ||
b9f6033c RH |
11549 | /* Return the exception level we're running at if this is our mmu_idx */ |
11550 | int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx) | |
11551 | { | |
11552 | if (mmu_idx & ARM_MMU_IDX_M) { | |
11553 | return mmu_idx & ARM_MMU_IDX_M_PRIV; | |
11554 | } | |
11555 | ||
11556 | switch (mmu_idx) { | |
11557 | case ARMMMUIdx_E10_0: | |
11558 | case ARMMMUIdx_E20_0: | |
b9f6033c RH |
11559 | return 0; |
11560 | case ARMMMUIdx_E10_1: | |
452ef8cb | 11561 | case ARMMMUIdx_E10_1_PAN: |
b9f6033c RH |
11562 | return 1; |
11563 | case ARMMMUIdx_E2: | |
11564 | case ARMMMUIdx_E20_2: | |
452ef8cb | 11565 | case ARMMMUIdx_E20_2_PAN: |
b9f6033c | 11566 | return 2; |
d902ae75 | 11567 | case ARMMMUIdx_E3: |
b9f6033c RH |
11568 | return 3; |
11569 | default: | |
11570 | g_assert_not_reached(); | |
11571 | } | |
11572 | } | |
11573 | ||
7aab5a8c | 11574 | #ifndef CONFIG_TCG |
65e4655c RH |
11575 | ARMMMUIdx arm_v7m_mmu_idx_for_secstate(CPUARMState *env, bool secstate) |
11576 | { | |
7aab5a8c | 11577 | g_assert_not_reached(); |
65e4655c | 11578 | } |
7aab5a8c | 11579 | #endif |
65e4655c | 11580 | |
6f2d9d74 TK |
11581 | static bool arm_pan_enabled(CPUARMState *env) |
11582 | { | |
11583 | if (is_a64(env)) { | |
11584 | return env->pstate & PSTATE_PAN; | |
11585 | } else { | |
11586 | return env->uncached_cpsr & CPSR_PAN; | |
11587 | } | |
11588 | } | |
11589 | ||
164690b2 | 11590 | ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el) |
65e4655c | 11591 | { |
b6ad6062 RDC |
11592 | ARMMMUIdx idx; |
11593 | uint64_t hcr; | |
11594 | ||
65e4655c | 11595 | if (arm_feature(env, ARM_FEATURE_M)) { |
50494a27 | 11596 | return arm_v7m_mmu_idx_for_secstate(env, env->v7m.secure); |
65e4655c RH |
11597 | } |
11598 | ||
6003d980 | 11599 | /* See ARM pseudo-function ELIsInHost. */ |
b9f6033c RH |
11600 | switch (el) { |
11601 | case 0: | |
b6ad6062 RDC |
11602 | hcr = arm_hcr_el2_eff(env); |
11603 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
11604 | idx = ARMMMUIdx_E20_0; | |
11605 | } else { | |
11606 | idx = ARMMMUIdx_E10_0; | |
6003d980 | 11607 | } |
b6ad6062 | 11608 | break; |
b9f6033c | 11609 | case 1: |
6f2d9d74 | 11610 | if (arm_pan_enabled(env)) { |
b6ad6062 RDC |
11611 | idx = ARMMMUIdx_E10_1_PAN; |
11612 | } else { | |
11613 | idx = ARMMMUIdx_E10_1; | |
66412260 | 11614 | } |
b6ad6062 | 11615 | break; |
b9f6033c | 11616 | case 2: |
6003d980 | 11617 | /* Note that TGE does not apply at EL2. */ |
b6ad6062 | 11618 | if (arm_hcr_el2_eff(env) & HCR_E2H) { |
6f2d9d74 | 11619 | if (arm_pan_enabled(env)) { |
b6ad6062 RDC |
11620 | idx = ARMMMUIdx_E20_2_PAN; |
11621 | } else { | |
11622 | idx = ARMMMUIdx_E20_2; | |
66412260 | 11623 | } |
b6ad6062 RDC |
11624 | } else { |
11625 | idx = ARMMMUIdx_E2; | |
6003d980 | 11626 | } |
b6ad6062 | 11627 | break; |
b9f6033c | 11628 | case 3: |
d902ae75 | 11629 | return ARMMMUIdx_E3; |
b9f6033c RH |
11630 | default: |
11631 | g_assert_not_reached(); | |
65e4655c | 11632 | } |
b6ad6062 | 11633 | |
b6ad6062 | 11634 | return idx; |
50494a27 RH |
11635 | } |
11636 | ||
164690b2 RH |
11637 | ARMMMUIdx arm_mmu_idx(CPUARMState *env) |
11638 | { | |
11639 | return arm_mmu_idx_el(env, arm_current_el(env)); | |
11640 | } | |
11641 | ||
3902bfc6 RH |
11642 | static CPUARMTBFlags rebuild_hflags_common(CPUARMState *env, int fp_el, |
11643 | ARMMMUIdx mmu_idx, | |
11644 | CPUARMTBFlags flags) | |
fdd1b228 | 11645 | { |
a729a46b RH |
11646 | DP_TBFLAG_ANY(flags, FPEXC_EL, fp_el); |
11647 | DP_TBFLAG_ANY(flags, MMUIDX, arm_to_core_mmu_idx(mmu_idx)); | |
fdd1b228 | 11648 | |
fdd1b228 | 11649 | if (arm_singlestep_active(env)) { |
a729a46b | 11650 | DP_TBFLAG_ANY(flags, SS_ACTIVE, 1); |
fdd1b228 RH |
11651 | } |
11652 | return flags; | |
11653 | } | |
11654 | ||
3902bfc6 RH |
11655 | static CPUARMTBFlags rebuild_hflags_common_32(CPUARMState *env, int fp_el, |
11656 | ARMMMUIdx mmu_idx, | |
11657 | CPUARMTBFlags flags) | |
43eccfb6 | 11658 | { |
8061a649 RH |
11659 | bool sctlr_b = arm_sctlr_b(env); |
11660 | ||
11661 | if (sctlr_b) { | |
a729a46b | 11662 | DP_TBFLAG_A32(flags, SCTLR__B, 1); |
8061a649 RH |
11663 | } |
11664 | if (arm_cpu_data_is_big_endian_a32(env, sctlr_b)) { | |
a729a46b | 11665 | DP_TBFLAG_ANY(flags, BE_DATA, 1); |
8061a649 | 11666 | } |
a729a46b | 11667 | DP_TBFLAG_A32(flags, NS, !access_secure_reg(env)); |
43eccfb6 RH |
11668 | |
11669 | return rebuild_hflags_common(env, fp_el, mmu_idx, flags); | |
11670 | } | |
11671 | ||
3902bfc6 RH |
11672 | static CPUARMTBFlags rebuild_hflags_m32(CPUARMState *env, int fp_el, |
11673 | ARMMMUIdx mmu_idx) | |
6e33ced5 | 11674 | { |
3902bfc6 | 11675 | CPUARMTBFlags flags = {}; |
4479ec30 RH |
11676 | uint32_t ccr = env->v7m.ccr[env->v7m.secure]; |
11677 | ||
11678 | /* Without HaveMainExt, CCR.UNALIGN_TRP is RES1. */ | |
11679 | if (ccr & R_V7M_CCR_UNALIGN_TRP_MASK) { | |
11680 | DP_TBFLAG_ANY(flags, ALIGN_MEM, 1); | |
11681 | } | |
6e33ced5 RH |
11682 | |
11683 | if (arm_v7m_is_handler_mode(env)) { | |
a729a46b | 11684 | DP_TBFLAG_M32(flags, HANDLER, 1); |
6e33ced5 RH |
11685 | } |
11686 | ||
11687 | /* | |
11688 | * v8M always applies stack limit checks unless CCR.STKOFHFNMIGN | |
11689 | * is suppressing them because the requested execution priority | |
11690 | * is less than 0. | |
11691 | */ | |
11692 | if (arm_feature(env, ARM_FEATURE_V8) && | |
11693 | !((mmu_idx & ARM_MMU_IDX_M_NEGPRI) && | |
4479ec30 | 11694 | (ccr & R_V7M_CCR_STKOFHFNMIGN_MASK))) { |
a729a46b | 11695 | DP_TBFLAG_M32(flags, STACKCHECK, 1); |
6e33ced5 RH |
11696 | } |
11697 | ||
a393dee0 RH |
11698 | if (arm_feature(env, ARM_FEATURE_M_SECURITY) && env->v7m.secure) { |
11699 | DP_TBFLAG_M32(flags, SECURE, 1); | |
11700 | } | |
11701 | ||
6e33ced5 RH |
11702 | return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags); |
11703 | } | |
11704 | ||
3902bfc6 RH |
11705 | static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el, |
11706 | ARMMMUIdx mmu_idx) | |
c747224c | 11707 | { |
8480e933 | 11708 | CPUARMTBFlags flags = {}; |
4479ec30 RH |
11709 | int el = arm_current_el(env); |
11710 | ||
11711 | if (arm_sctlr(env, el) & SCTLR_A) { | |
11712 | DP_TBFLAG_ANY(flags, ALIGN_MEM, 1); | |
11713 | } | |
0a54d68e RH |
11714 | |
11715 | if (arm_el_is_aa64(env, 1)) { | |
a729a46b | 11716 | DP_TBFLAG_A32(flags, VFPEN, 1); |
0a54d68e | 11717 | } |
5bb0a20b | 11718 | |
034bb45a | 11719 | if (el < 2 && env->cp15.hstr_el2 && arm_is_el2_enabled(env) && |
5bb0a20b | 11720 | (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { |
a729a46b | 11721 | DP_TBFLAG_A32(flags, HSTR_ACTIVE, 1); |
5bb0a20b MZ |
11722 | } |
11723 | ||
520d1621 PM |
11724 | if (env->uncached_cpsr & CPSR_IL) { |
11725 | DP_TBFLAG_ANY(flags, PSTATE__IL, 1); | |
11726 | } | |
11727 | ||
75fe8356 RH |
11728 | /* |
11729 | * The SME exception we are testing for is raised via | |
11730 | * AArch64.CheckFPAdvSIMDEnabled(), as called from | |
11731 | * AArch32.CheckAdvSIMDOrFPEnabled(). | |
11732 | */ | |
11733 | if (el == 0 | |
11734 | && FIELD_EX64(env->svcr, SVCR, SM) | |
11735 | && (!arm_is_el2_enabled(env) | |
11736 | || (arm_el_is_aa64(env, 2) && !(env->cp15.hcr_el2 & HCR_TGE))) | |
11737 | && arm_el_is_aa64(env, 1) | |
11738 | && !sme_fa64(env, el)) { | |
11739 | DP_TBFLAG_A32(flags, SME_TRAP_NONSTREAMING, 1); | |
11740 | } | |
11741 | ||
83f4baef | 11742 | return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags); |
c747224c RH |
11743 | } |
11744 | ||
3902bfc6 RH |
11745 | static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, |
11746 | ARMMMUIdx mmu_idx) | |
a9e01311 | 11747 | { |
8480e933 | 11748 | CPUARMTBFlags flags = {}; |
d4d7503a | 11749 | ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx); |
c1547bba | 11750 | uint64_t tcr = regime_tcr(env, mmu_idx); |
d4d7503a RH |
11751 | uint64_t sctlr; |
11752 | int tbii, tbid; | |
b9adaa70 | 11753 | |
a729a46b | 11754 | DP_TBFLAG_ANY(flags, AARCH64_STATE, 1); |
cd208a1c | 11755 | |
339370b9 | 11756 | /* Get control bits for tagged addresses. */ |
b830a5ee RH |
11757 | tbid = aa64_va_parameter_tbi(tcr, mmu_idx); |
11758 | tbii = tbid & ~aa64_va_parameter_tbid(tcr, mmu_idx); | |
5d8634f5 | 11759 | |
a729a46b RH |
11760 | DP_TBFLAG_A64(flags, TBII, tbii); |
11761 | DP_TBFLAG_A64(flags, TBID, tbid); | |
d4d7503a RH |
11762 | |
11763 | if (cpu_isar_feature(aa64_sve, env_archcpu(env))) { | |
11764 | int sve_el = sve_exception_el(env, el); | |
5d8634f5 | 11765 | |
d4d7503a | 11766 | /* |
397d922c RH |
11767 | * If either FP or SVE are disabled, translator does not need len. |
11768 | * If SVE EL > FP EL, FP exception has precedence, and translator | |
11769 | * does not need SVE EL. Save potential re-translations by forcing | |
11770 | * the unneeded data to zero. | |
d4d7503a | 11771 | */ |
397d922c RH |
11772 | if (fp_el != 0) { |
11773 | if (sve_el > fp_el) { | |
11774 | sve_el = 0; | |
11775 | } | |
11776 | } else if (sve_el == 0) { | |
5ef3cc56 | 11777 | DP_TBFLAG_A64(flags, VL, sve_vqm1_for_el(env, el)); |
5d8634f5 | 11778 | } |
a729a46b | 11779 | DP_TBFLAG_A64(flags, SVEEXC_EL, sve_el); |
d4d7503a | 11780 | } |
6b2ca83e | 11781 | if (cpu_isar_feature(aa64_sme, env_archcpu(env))) { |
5d7953ad | 11782 | int sme_el = sme_exception_el(env, el); |
62151133 | 11783 | bool sm = FIELD_EX64(env->svcr, SVCR, SM); |
5d7953ad RH |
11784 | |
11785 | DP_TBFLAG_A64(flags, SMEEXC_EL, sme_el); | |
11786 | if (sme_el == 0) { | |
11787 | /* Similarly, do not compute SVL if SME is disabled. */ | |
62151133 RH |
11788 | int svl = sve_vqm1_for_el_sm(env, el, true); |
11789 | DP_TBFLAG_A64(flags, SVL, svl); | |
11790 | if (sm) { | |
11791 | /* If SVE is disabled, we will not have set VL above. */ | |
11792 | DP_TBFLAG_A64(flags, VL, svl); | |
11793 | } | |
5d7953ad | 11794 | } |
62151133 | 11795 | if (sm) { |
a3637e88 | 11796 | DP_TBFLAG_A64(flags, PSTATE_SM, 1); |
75fe8356 | 11797 | DP_TBFLAG_A64(flags, SME_TRAP_NONSTREAMING, !sme_fa64(env, el)); |
a3637e88 RH |
11798 | } |
11799 | DP_TBFLAG_A64(flags, PSTATE_ZA, FIELD_EX64(env->svcr, SVCR, ZA)); | |
6b2ca83e | 11800 | } |
1db5e96c | 11801 | |
aaec1432 | 11802 | sctlr = regime_sctlr(env, stage1); |
1db5e96c | 11803 | |
4479ec30 RH |
11804 | if (sctlr & SCTLR_A) { |
11805 | DP_TBFLAG_ANY(flags, ALIGN_MEM, 1); | |
11806 | } | |
11807 | ||
8061a649 | 11808 | if (arm_cpu_data_is_big_endian_a64(el, sctlr)) { |
a729a46b | 11809 | DP_TBFLAG_ANY(flags, BE_DATA, 1); |
8061a649 RH |
11810 | } |
11811 | ||
d4d7503a RH |
11812 | if (cpu_isar_feature(aa64_pauth, env_archcpu(env))) { |
11813 | /* | |
11814 | * In order to save space in flags, we record only whether | |
11815 | * pauth is "inactive", meaning all insns are implemented as | |
11816 | * a nop, or "active" when some action must be performed. | |
11817 | * The decision of which action to take is left to a helper. | |
11818 | */ | |
11819 | if (sctlr & (SCTLR_EnIA | SCTLR_EnIB | SCTLR_EnDA | SCTLR_EnDB)) { | |
a729a46b | 11820 | DP_TBFLAG_A64(flags, PAUTH_ACTIVE, 1); |
1db5e96c | 11821 | } |
d4d7503a | 11822 | } |
0816ef1b | 11823 | |
d4d7503a RH |
11824 | if (cpu_isar_feature(aa64_bti, env_archcpu(env))) { |
11825 | /* Note that SCTLR_EL[23].BT == SCTLR_BT1. */ | |
11826 | if (sctlr & (el == 0 ? SCTLR_BT0 : SCTLR_BT1)) { | |
a729a46b | 11827 | DP_TBFLAG_A64(flags, BT, 1); |
0816ef1b | 11828 | } |
d4d7503a | 11829 | } |
08f1434a | 11830 | |
cc28fc30 | 11831 | /* Compute the condition for using AccType_UNPRIV for LDTR et al. */ |
7a8014ab RH |
11832 | if (!(env->pstate & PSTATE_UAO)) { |
11833 | switch (mmu_idx) { | |
11834 | case ARMMMUIdx_E10_1: | |
11835 | case ARMMMUIdx_E10_1_PAN: | |
7a8014ab | 11836 | /* TODO: ARMv8.3-NV */ |
a729a46b | 11837 | DP_TBFLAG_A64(flags, UNPRIV, 1); |
7a8014ab RH |
11838 | break; |
11839 | case ARMMMUIdx_E20_2: | |
11840 | case ARMMMUIdx_E20_2_PAN: | |
7a8014ab RH |
11841 | /* |
11842 | * Note that EL20_2 is gated by HCR_EL2.E2H == 1, but EL20_0 is | |
11843 | * gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR. | |
11844 | */ | |
11845 | if (env->cp15.hcr_el2 & HCR_TGE) { | |
a729a46b | 11846 | DP_TBFLAG_A64(flags, UNPRIV, 1); |
7a8014ab RH |
11847 | } |
11848 | break; | |
11849 | default: | |
11850 | break; | |
cc28fc30 | 11851 | } |
cc28fc30 RH |
11852 | } |
11853 | ||
520d1621 PM |
11854 | if (env->pstate & PSTATE_IL) { |
11855 | DP_TBFLAG_ANY(flags, PSTATE__IL, 1); | |
11856 | } | |
11857 | ||
81ae05fa RH |
11858 | if (cpu_isar_feature(aa64_mte, env_archcpu(env))) { |
11859 | /* | |
11860 | * Set MTE_ACTIVE if any access may be Checked, and leave clear | |
11861 | * if all accesses must be Unchecked: | |
11862 | * 1) If no TBI, then there are no tags in the address to check, | |
11863 | * 2) If Tag Check Override, then all accesses are Unchecked, | |
11864 | * 3) If Tag Check Fail == 0, then Checked access have no effect, | |
11865 | * 4) If no Allocation Tag Access, then all accesses are Unchecked. | |
11866 | */ | |
11867 | if (allocation_tag_access_enabled(env, el, sctlr)) { | |
a729a46b | 11868 | DP_TBFLAG_A64(flags, ATA, 1); |
81ae05fa RH |
11869 | if (tbid |
11870 | && !(env->pstate & PSTATE_TCO) | |
11871 | && (sctlr & (el == 0 ? SCTLR_TCF0 : SCTLR_TCF))) { | |
a729a46b | 11872 | DP_TBFLAG_A64(flags, MTE_ACTIVE, 1); |
81ae05fa RH |
11873 | } |
11874 | } | |
11875 | /* And again for unprivileged accesses, if required. */ | |
a729a46b | 11876 | if (EX_TBFLAG_A64(flags, UNPRIV) |
81ae05fa RH |
11877 | && tbid |
11878 | && !(env->pstate & PSTATE_TCO) | |
2d928adf | 11879 | && (sctlr & SCTLR_TCF0) |
81ae05fa | 11880 | && allocation_tag_access_enabled(env, 0, sctlr)) { |
a729a46b | 11881 | DP_TBFLAG_A64(flags, MTE0_ACTIVE, 1); |
81ae05fa RH |
11882 | } |
11883 | /* Cache TCMA as well as TBI. */ | |
a729a46b | 11884 | DP_TBFLAG_A64(flags, TCMA, aa64_va_parameter_tcma(tcr, mmu_idx)); |
81ae05fa RH |
11885 | } |
11886 | ||
d4d7503a RH |
11887 | return rebuild_hflags_common(env, fp_el, mmu_idx, flags); |
11888 | } | |
11889 | ||
3902bfc6 | 11890 | static CPUARMTBFlags rebuild_hflags_internal(CPUARMState *env) |
3d74e2e9 RH |
11891 | { |
11892 | int el = arm_current_el(env); | |
11893 | int fp_el = fp_exception_el(env, el); | |
164690b2 | 11894 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); |
3d74e2e9 RH |
11895 | |
11896 | if (is_a64(env)) { | |
11897 | return rebuild_hflags_a64(env, el, fp_el, mmu_idx); | |
11898 | } else if (arm_feature(env, ARM_FEATURE_M)) { | |
11899 | return rebuild_hflags_m32(env, fp_el, mmu_idx); | |
11900 | } else { | |
11901 | return rebuild_hflags_a32(env, fp_el, mmu_idx); | |
11902 | } | |
11903 | } | |
11904 | ||
11905 | void arm_rebuild_hflags(CPUARMState *env) | |
11906 | { | |
11907 | env->hflags = rebuild_hflags_internal(env); | |
11908 | } | |
11909 | ||
19717e9b PM |
11910 | /* |
11911 | * If we have triggered a EL state change we can't rely on the | |
11912 | * translator having passed it to us, we need to recompute. | |
11913 | */ | |
11914 | void HELPER(rebuild_hflags_m32_newel)(CPUARMState *env) | |
11915 | { | |
11916 | int el = arm_current_el(env); | |
11917 | int fp_el = fp_exception_el(env, el); | |
11918 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
3902bfc6 | 11919 | |
19717e9b PM |
11920 | env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx); |
11921 | } | |
11922 | ||
14f3c588 RH |
11923 | void HELPER(rebuild_hflags_m32)(CPUARMState *env, int el) |
11924 | { | |
11925 | int fp_el = fp_exception_el(env, el); | |
11926 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11927 | ||
11928 | env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx); | |
11929 | } | |
11930 | ||
f80741d1 AB |
11931 | /* |
11932 | * If we have triggered a EL state change we can't rely on the | |
563152e0 | 11933 | * translator having passed it to us, we need to recompute. |
f80741d1 AB |
11934 | */ |
11935 | void HELPER(rebuild_hflags_a32_newel)(CPUARMState *env) | |
11936 | { | |
11937 | int el = arm_current_el(env); | |
11938 | int fp_el = fp_exception_el(env, el); | |
11939 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11940 | env->hflags = rebuild_hflags_a32(env, fp_el, mmu_idx); | |
11941 | } | |
11942 | ||
14f3c588 RH |
11943 | void HELPER(rebuild_hflags_a32)(CPUARMState *env, int el) |
11944 | { | |
11945 | int fp_el = fp_exception_el(env, el); | |
11946 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11947 | ||
11948 | env->hflags = rebuild_hflags_a32(env, fp_el, mmu_idx); | |
11949 | } | |
11950 | ||
11951 | void HELPER(rebuild_hflags_a64)(CPUARMState *env, int el) | |
11952 | { | |
11953 | int fp_el = fp_exception_el(env, el); | |
11954 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11955 | ||
11956 | env->hflags = rebuild_hflags_a64(env, el, fp_el, mmu_idx); | |
11957 | } | |
11958 | ||
0ee8b24a PMD |
11959 | static inline void assert_hflags_rebuild_correctly(CPUARMState *env) |
11960 | { | |
11961 | #ifdef CONFIG_DEBUG_TCG | |
3902bfc6 RH |
11962 | CPUARMTBFlags c = env->hflags; |
11963 | CPUARMTBFlags r = rebuild_hflags_internal(env); | |
0ee8b24a | 11964 | |
a378206a RH |
11965 | if (unlikely(c.flags != r.flags || c.flags2 != r.flags2)) { |
11966 | fprintf(stderr, "TCG hflags mismatch " | |
11967 | "(current:(0x%08x,0x" TARGET_FMT_lx ")" | |
11968 | " rebuilt:(0x%08x,0x" TARGET_FMT_lx ")\n", | |
11969 | c.flags, c.flags2, r.flags, r.flags2); | |
0ee8b24a PMD |
11970 | abort(); |
11971 | } | |
11972 | #endif | |
11973 | } | |
11974 | ||
26702213 PM |
11975 | static bool mve_no_pred(CPUARMState *env) |
11976 | { | |
11977 | /* | |
11978 | * Return true if there is definitely no predication of MVE | |
11979 | * instructions by VPR or LTPSIZE. (Returning false even if there | |
11980 | * isn't any predication is OK; generated code will just be | |
11981 | * a little worse.) | |
11982 | * If the CPU does not implement MVE then this TB flag is always 0. | |
11983 | * | |
11984 | * NOTE: if you change this logic, the "recalculate s->mve_no_pred" | |
11985 | * logic in gen_update_fp_context() needs to be updated to match. | |
11986 | * | |
11987 | * We do not include the effect of the ECI bits here -- they are | |
11988 | * tracked in other TB flags. This simplifies the logic for | |
11989 | * "when did we emit code that changes the MVE_NO_PRED TB flag | |
11990 | * and thus need to end the TB?". | |
11991 | */ | |
11992 | if (cpu_isar_feature(aa32_mve, env_archcpu(env))) { | |
11993 | return false; | |
11994 | } | |
11995 | if (env->v7m.vpr) { | |
11996 | return false; | |
11997 | } | |
11998 | if (env->v7m.ltpsize < 4) { | |
11999 | return false; | |
12000 | } | |
12001 | return true; | |
12002 | } | |
12003 | ||
d4d7503a RH |
12004 | void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc, |
12005 | target_ulong *cs_base, uint32_t *pflags) | |
12006 | { | |
3902bfc6 | 12007 | CPUARMTBFlags flags; |
d4d7503a | 12008 | |
0ee8b24a | 12009 | assert_hflags_rebuild_correctly(env); |
3902bfc6 | 12010 | flags = env->hflags; |
3d74e2e9 | 12011 | |
a729a46b | 12012 | if (EX_TBFLAG_ANY(flags, AARCH64_STATE)) { |
d4d7503a | 12013 | *pc = env->pc; |
d4d7503a | 12014 | if (cpu_isar_feature(aa64_bti, env_archcpu(env))) { |
a729a46b | 12015 | DP_TBFLAG_A64(flags, BTYPE, env->btype); |
08f1434a | 12016 | } |
a9e01311 RH |
12017 | } else { |
12018 | *pc = env->regs[15]; | |
6e33ced5 RH |
12019 | |
12020 | if (arm_feature(env, ARM_FEATURE_M)) { | |
9550d1bd RH |
12021 | if (arm_feature(env, ARM_FEATURE_M_SECURITY) && |
12022 | FIELD_EX32(env->v7m.fpccr[M_REG_S], V7M_FPCCR, S) | |
12023 | != env->v7m.secure) { | |
a729a46b | 12024 | DP_TBFLAG_M32(flags, FPCCR_S_WRONG, 1); |
9550d1bd RH |
12025 | } |
12026 | ||
12027 | if ((env->v7m.fpccr[env->v7m.secure] & R_V7M_FPCCR_ASPEN_MASK) && | |
12028 | (!(env->v7m.control[M_REG_S] & R_V7M_CONTROL_FPCA_MASK) || | |
12029 | (env->v7m.secure && | |
12030 | !(env->v7m.control[M_REG_S] & R_V7M_CONTROL_SFPA_MASK)))) { | |
12031 | /* | |
12032 | * ASPEN is set, but FPCA/SFPA indicate that there is no | |
12033 | * active FP context; we must create a new FP context before | |
12034 | * executing any FP insn. | |
12035 | */ | |
a729a46b | 12036 | DP_TBFLAG_M32(flags, NEW_FP_CTXT_NEEDED, 1); |
9550d1bd RH |
12037 | } |
12038 | ||
12039 | bool is_secure = env->v7m.fpccr[M_REG_S] & R_V7M_FPCCR_S_MASK; | |
12040 | if (env->v7m.fpccr[is_secure] & R_V7M_FPCCR_LSPACT_MASK) { | |
a729a46b | 12041 | DP_TBFLAG_M32(flags, LSPACT, 1); |
9550d1bd | 12042 | } |
26702213 PM |
12043 | |
12044 | if (mve_no_pred(env)) { | |
12045 | DP_TBFLAG_M32(flags, MVE_NO_PRED, 1); | |
12046 | } | |
6e33ced5 | 12047 | } else { |
bbad7c62 RH |
12048 | /* |
12049 | * Note that XSCALE_CPAR shares bits with VECSTRIDE. | |
12050 | * Note that VECLEN+VECSTRIDE are RES0 for M-profile. | |
12051 | */ | |
12052 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { | |
a729a46b | 12053 | DP_TBFLAG_A32(flags, XSCALE_CPAR, env->cp15.c15_cpar); |
bbad7c62 | 12054 | } else { |
a729a46b RH |
12055 | DP_TBFLAG_A32(flags, VECLEN, env->vfp.vec_len); |
12056 | DP_TBFLAG_A32(flags, VECSTRIDE, env->vfp.vec_stride); | |
bbad7c62 | 12057 | } |
0a54d68e | 12058 | if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) { |
a729a46b | 12059 | DP_TBFLAG_A32(flags, VFPEN, 1); |
0a54d68e | 12060 | } |
6e33ced5 RH |
12061 | } |
12062 | ||
a729a46b RH |
12063 | DP_TBFLAG_AM32(flags, THUMB, env->thumb); |
12064 | DP_TBFLAG_AM32(flags, CONDEXEC, env->condexec_bits); | |
d4d7503a | 12065 | } |
a9e01311 | 12066 | |
60e12c37 RH |
12067 | /* |
12068 | * The SS_ACTIVE and PSTATE_SS bits correspond to the state machine | |
a9e01311 RH |
12069 | * states defined in the ARM ARM for software singlestep: |
12070 | * SS_ACTIVE PSTATE.SS State | |
12071 | * 0 x Inactive (the TB flag for SS is always 0) | |
12072 | * 1 0 Active-pending | |
12073 | * 1 1 Active-not-pending | |
ae6eb1e9 | 12074 | * SS_ACTIVE is set in hflags; PSTATE__SS is computed every TB. |
a9e01311 | 12075 | */ |
a729a46b RH |
12076 | if (EX_TBFLAG_ANY(flags, SS_ACTIVE) && (env->pstate & PSTATE_SS)) { |
12077 | DP_TBFLAG_ANY(flags, PSTATE__SS, 1); | |
a9e01311 | 12078 | } |
a9e01311 | 12079 | |
3902bfc6 | 12080 | *pflags = flags.flags; |
a378206a | 12081 | *cs_base = flags.flags2; |
a9e01311 | 12082 | } |
0ab5953b RH |
12083 | |
12084 | #ifdef TARGET_AARCH64 | |
12085 | /* | |
12086 | * The manual says that when SVE is enabled and VQ is widened the | |
12087 | * implementation is allowed to zero the previously inaccessible | |
12088 | * portion of the registers. The corollary to that is that when | |
12089 | * SVE is enabled and VQ is narrowed we are also allowed to zero | |
12090 | * the now inaccessible portion of the registers. | |
12091 | * | |
12092 | * The intent of this is that no predicate bit beyond VQ is ever set. | |
12093 | * Which means that some operations on predicate registers themselves | |
12094 | * may operate on full uint64_t or even unrolled across the maximum | |
12095 | * uint64_t[4]. Performing 4 bits of host arithmetic unconditionally | |
12096 | * may well be cheaper than conditionals to restrict the operation | |
12097 | * to the relevant portion of a uint16_t[16]. | |
12098 | */ | |
12099 | void aarch64_sve_narrow_vq(CPUARMState *env, unsigned vq) | |
12100 | { | |
12101 | int i, j; | |
12102 | uint64_t pmask; | |
12103 | ||
12104 | assert(vq >= 1 && vq <= ARM_MAX_VQ); | |
2fc0cc0e | 12105 | assert(vq <= env_archcpu(env)->sve_max_vq); |
0ab5953b RH |
12106 | |
12107 | /* Zap the high bits of the zregs. */ | |
12108 | for (i = 0; i < 32; i++) { | |
12109 | memset(&env->vfp.zregs[i].d[2 * vq], 0, 16 * (ARM_MAX_VQ - vq)); | |
12110 | } | |
12111 | ||
12112 | /* Zap the high bits of the pregs and ffr. */ | |
12113 | pmask = 0; | |
12114 | if (vq & 3) { | |
12115 | pmask = ~(-1ULL << (16 * (vq & 3))); | |
12116 | } | |
12117 | for (j = vq / 4; j < ARM_MAX_VQ / 4; j++) { | |
12118 | for (i = 0; i < 17; ++i) { | |
12119 | env->vfp.pregs[i].p[j] &= pmask; | |
12120 | } | |
12121 | pmask = 0; | |
12122 | } | |
12123 | } | |
12124 | ||
6a775fd6 RH |
12125 | static uint32_t sve_vqm1_for_el_sm_ena(CPUARMState *env, int el, bool sm) |
12126 | { | |
12127 | int exc_el; | |
12128 | ||
12129 | if (sm) { | |
12130 | exc_el = sme_exception_el(env, el); | |
12131 | } else { | |
12132 | exc_el = sve_exception_el(env, el); | |
12133 | } | |
12134 | if (exc_el) { | |
12135 | return 0; /* disabled */ | |
12136 | } | |
12137 | return sve_vqm1_for_el_sm(env, el, sm); | |
12138 | } | |
12139 | ||
0ab5953b RH |
12140 | /* |
12141 | * Notice a change in SVE vector size when changing EL. | |
12142 | */ | |
9a05f7b6 RH |
12143 | void aarch64_sve_change_el(CPUARMState *env, int old_el, |
12144 | int new_el, bool el0_a64) | |
0ab5953b | 12145 | { |
2fc0cc0e | 12146 | ARMCPU *cpu = env_archcpu(env); |
0ab5953b | 12147 | int old_len, new_len; |
6a775fd6 | 12148 | bool old_a64, new_a64, sm; |
0ab5953b RH |
12149 | |
12150 | /* Nothing to do if no SVE. */ | |
cd208a1c | 12151 | if (!cpu_isar_feature(aa64_sve, cpu)) { |
0ab5953b RH |
12152 | return; |
12153 | } | |
12154 | ||
12155 | /* Nothing to do if FP is disabled in either EL. */ | |
12156 | if (fp_exception_el(env, old_el) || fp_exception_el(env, new_el)) { | |
12157 | return; | |
12158 | } | |
12159 | ||
04fbce76 RH |
12160 | old_a64 = old_el ? arm_el_is_aa64(env, old_el) : el0_a64; |
12161 | new_a64 = new_el ? arm_el_is_aa64(env, new_el) : el0_a64; | |
12162 | ||
12163 | /* | |
12164 | * Both AArch64.TakeException and AArch64.ExceptionReturn | |
12165 | * invoke ResetSVEState when taking an exception from, or | |
12166 | * returning to, AArch32 state when PSTATE.SM is enabled. | |
12167 | */ | |
6a775fd6 RH |
12168 | sm = FIELD_EX64(env->svcr, SVCR, SM); |
12169 | if (old_a64 != new_a64 && sm) { | |
04fbce76 RH |
12170 | arm_reset_sve_state(env); |
12171 | return; | |
12172 | } | |
12173 | ||
0ab5953b RH |
12174 | /* |
12175 | * DDI0584A.d sec 3.2: "If SVE instructions are disabled or trapped | |
12176 | * at ELx, or not available because the EL is in AArch32 state, then | |
12177 | * for all purposes other than a direct read, the ZCR_ELx.LEN field | |
12178 | * has an effective value of 0". | |
12179 | * | |
12180 | * Consider EL2 (aa64, vq=4) -> EL0 (aa32) -> EL1 (aa64, vq=0). | |
12181 | * If we ignore aa32 state, we would fail to see the vq4->vq0 transition | |
12182 | * from EL2->EL1. Thus we go ahead and narrow when entering aa32 so that | |
12183 | * we already have the correct register contents when encountering the | |
12184 | * vq0->vq0 transition between EL0->EL1. | |
12185 | */ | |
6a775fd6 RH |
12186 | old_len = new_len = 0; |
12187 | if (old_a64) { | |
12188 | old_len = sve_vqm1_for_el_sm_ena(env, old_el, sm); | |
12189 | } | |
12190 | if (new_a64) { | |
12191 | new_len = sve_vqm1_for_el_sm_ena(env, new_el, sm); | |
12192 | } | |
0ab5953b RH |
12193 | |
12194 | /* When changing vector length, clear inaccessible state. */ | |
12195 | if (new_len < old_len) { | |
12196 | aarch64_sve_narrow_vq(env, new_len + 1); | |
12197 | } | |
12198 | } | |
12199 | #endif |