]>
Commit | Line | Data |
---|---|---|
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 | } | |
ea22747c RH |
1869 | } else { |
1870 | valid_mask &= ~(SCR_RW | SCR_ST); | |
da3d8b13 RH |
1871 | if (cpu_isar_feature(aa32_ras, cpu)) { |
1872 | valid_mask |= SCR_TERR; | |
1873 | } | |
ea22747c | 1874 | } |
64e0e2de EI |
1875 | |
1876 | if (!arm_feature(env, ARM_FEATURE_EL2)) { | |
1877 | valid_mask &= ~SCR_HCE; | |
1878 | ||
9b37a28c FR |
1879 | /* |
1880 | * On ARMv7, SMD (or SCD as it is called in v7) is only | |
64e0e2de EI |
1881 | * supported if EL2 exists. The bit is UNK/SBZP when |
1882 | * EL2 is unavailable. In QEMU ARMv7, we force it to always zero | |
1883 | * when EL2 is unavailable. | |
4eb27640 | 1884 | * On ARMv8, this bit is always available. |
64e0e2de | 1885 | */ |
4eb27640 GB |
1886 | if (arm_feature(env, ARM_FEATURE_V7) && |
1887 | !arm_feature(env, ARM_FEATURE_V8)) { | |
64e0e2de EI |
1888 | valid_mask &= ~SCR_SMD; |
1889 | } | |
1890 | } | |
1891 | ||
1892 | /* Clear all-context RES0 bits. */ | |
1893 | value &= valid_mask; | |
d902ae75 RH |
1894 | changed = env->cp15.scr_el3 ^ value; |
1895 | env->cp15.scr_el3 = value; | |
1896 | ||
1897 | /* | |
1898 | * If SCR_EL3.NS changes, i.e. arm_is_secure_below_el3, then | |
1899 | * we must invalidate all TLBs below EL3. | |
1900 | */ | |
1901 | if (changed & SCR_NS) { | |
1902 | tlb_flush_by_mmuidx(env_cpu(env), (ARMMMUIdxBit_E10_0 | | |
1903 | ARMMMUIdxBit_E20_0 | | |
1904 | ARMMMUIdxBit_E10_1 | | |
1905 | ARMMMUIdxBit_E20_2 | | |
1906 | ARMMMUIdxBit_E10_1_PAN | | |
1907 | ARMMMUIdxBit_E20_2_PAN | | |
1908 | ARMMMUIdxBit_E2)); | |
1909 | } | |
64e0e2de EI |
1910 | } |
1911 | ||
10d0ef3e MN |
1912 | static void scr_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
1913 | { | |
1914 | /* | |
1915 | * scr_write will set the RES1 bits on an AArch64-only CPU. | |
1916 | * The reset value will be 0x30 on an AArch64-only CPU and 0 otherwise. | |
1917 | */ | |
1918 | scr_write(env, ri, 0); | |
1919 | } | |
1920 | ||
e2ce5fcd PM |
1921 | static CPAccessResult access_tid4(CPUARMState *env, |
1922 | const ARMCPRegInfo *ri, | |
1923 | bool isread) | |
630fcd4d | 1924 | { |
e2ce5fcd PM |
1925 | if (arm_current_el(env) == 1 && |
1926 | (arm_hcr_el2_eff(env) & (HCR_TID2 | HCR_TID4))) { | |
630fcd4d MZ |
1927 | return CP_ACCESS_TRAP_EL2; |
1928 | } | |
1929 | ||
1930 | return CP_ACCESS_OK; | |
1931 | } | |
1932 | ||
c4241c7d | 1933 | static uint64_t ccsidr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
776d4e5c | 1934 | { |
2fc0cc0e | 1935 | ARMCPU *cpu = env_archcpu(env); |
b85a1fd6 | 1936 | |
9b37a28c FR |
1937 | /* |
1938 | * Acquire the CSSELR index from the bank corresponding to the CCSIDR | |
b85a1fd6 FA |
1939 | * bank |
1940 | */ | |
1941 | uint32_t index = A32_BANKED_REG_GET(env, csselr, | |
1942 | ri->secure & ARM_CP_SECSTATE_S); | |
1943 | ||
1944 | return cpu->ccsidr[index]; | |
776d4e5c PM |
1945 | } |
1946 | ||
c4241c7d PM |
1947 | static void csselr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
1948 | uint64_t value) | |
776d4e5c | 1949 | { |
8d5c773e | 1950 | raw_write(env, ri, value & 0xf); |
776d4e5c PM |
1951 | } |
1952 | ||
1090b9c6 PM |
1953 | static uint64_t isr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
1954 | { | |
29a0af61 | 1955 | CPUState *cs = env_cpu(env); |
cc974d5c RDC |
1956 | bool el1 = arm_current_el(env) == 1; |
1957 | uint64_t hcr_el2 = el1 ? arm_hcr_el2_eff(env) : 0; | |
1090b9c6 PM |
1958 | uint64_t ret = 0; |
1959 | ||
cc974d5c | 1960 | if (hcr_el2 & HCR_IMO) { |
636540e9 PM |
1961 | if (cs->interrupt_request & CPU_INTERRUPT_VIRQ) { |
1962 | ret |= CPSR_I; | |
1963 | } | |
1964 | } else { | |
1965 | if (cs->interrupt_request & CPU_INTERRUPT_HARD) { | |
1966 | ret |= CPSR_I; | |
1967 | } | |
1090b9c6 | 1968 | } |
636540e9 | 1969 | |
cc974d5c | 1970 | if (hcr_el2 & HCR_FMO) { |
636540e9 PM |
1971 | if (cs->interrupt_request & CPU_INTERRUPT_VFIQ) { |
1972 | ret |= CPSR_F; | |
1973 | } | |
1974 | } else { | |
1975 | if (cs->interrupt_request & CPU_INTERRUPT_FIQ) { | |
1976 | ret |= CPSR_F; | |
1977 | } | |
1090b9c6 | 1978 | } |
636540e9 | 1979 | |
3c29632f RH |
1980 | if (hcr_el2 & HCR_AMO) { |
1981 | if (cs->interrupt_request & CPU_INTERRUPT_VSERR) { | |
1982 | ret |= CPSR_A; | |
1983 | } | |
1984 | } | |
1985 | ||
1090b9c6 PM |
1986 | return ret; |
1987 | } | |
1988 | ||
93fbc983 MZ |
1989 | static CPAccessResult access_aa64_tid1(CPUARMState *env, const ARMCPRegInfo *ri, |
1990 | bool isread) | |
1991 | { | |
1992 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TID1)) { | |
1993 | return CP_ACCESS_TRAP_EL2; | |
1994 | } | |
1995 | ||
1996 | return CP_ACCESS_OK; | |
1997 | } | |
1998 | ||
1999 | static CPAccessResult access_aa32_tid1(CPUARMState *env, const ARMCPRegInfo *ri, | |
2000 | bool isread) | |
2001 | { | |
2002 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
2003 | return access_aa64_tid1(env, ri, isread); | |
2004 | } | |
2005 | ||
2006 | return CP_ACCESS_OK; | |
2007 | } | |
2008 | ||
e9aa6c21 | 2009 | static const ARMCPRegInfo v7_cp_reginfo[] = { |
7d57f408 PM |
2010 | /* the old v6 WFI, UNPREDICTABLE in v7 but we choose to NOP */ |
2011 | { .name = "NOP", .cp = 15, .crn = 7, .crm = 0, .opc1 = 0, .opc2 = 4, | |
2012 | .access = PL1_W, .type = ARM_CP_NOP }, | |
9b37a28c FR |
2013 | /* |
2014 | * Performance monitors are implementation defined in v7, | |
200ac0ef | 2015 | * but with an ARM recommended set of registers, which we |
ac689a2e | 2016 | * follow. |
200ac0ef PM |
2017 | * |
2018 | * Performance registers fall into three categories: | |
2019 | * (a) always UNDEF in PL0, RW in PL1 (PMINTENSET, PMINTENCLR) | |
2020 | * (b) RO in PL0 (ie UNDEF on write), RW in PL1 (PMUSERENR) | |
2021 | * (c) UNDEF in PL0 if PMUSERENR.EN==0, otherwise accessible (all others) | |
2022 | * For the cases controlled by PMUSERENR we must set .access to PL0_RW | |
2023 | * or PL0_RO as appropriate and then check PMUSERENR in the helper fn. | |
2024 | */ | |
2025 | { .name = "PMCNTENSET", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 1, | |
7f4fbfb5 | 2026 | .access = PL0_RW, .type = ARM_CP_ALIAS | ARM_CP_IO, |
8521466b | 2027 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcnten), |
fcd25206 PM |
2028 | .writefn = pmcntenset_write, |
2029 | .accessfn = pmreg_access, | |
2030 | .raw_writefn = raw_write }, | |
7f4fbfb5 | 2031 | { .name = "PMCNTENSET_EL0", .state = ARM_CP_STATE_AA64, .type = ARM_CP_IO, |
8521466b AF |
2032 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 1, |
2033 | .access = PL0_RW, .accessfn = pmreg_access, | |
2034 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten), .resetvalue = 0, | |
2035 | .writefn = pmcntenset_write, .raw_writefn = raw_write }, | |
200ac0ef | 2036 | { .name = "PMCNTENCLR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 2, |
8521466b AF |
2037 | .access = PL0_RW, |
2038 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcnten), | |
fcd25206 PM |
2039 | .accessfn = pmreg_access, |
2040 | .writefn = pmcntenclr_write, | |
7f4fbfb5 | 2041 | .type = ARM_CP_ALIAS | ARM_CP_IO }, |
8521466b AF |
2042 | { .name = "PMCNTENCLR_EL0", .state = ARM_CP_STATE_AA64, |
2043 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 2, | |
2044 | .access = PL0_RW, .accessfn = pmreg_access, | |
7f4fbfb5 | 2045 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
8521466b AF |
2046 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcnten), |
2047 | .writefn = pmcntenclr_write }, | |
200ac0ef | 2048 | { .name = "PMOVSR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 3, |
f4efb4b2 | 2049 | .access = PL0_RW, .type = ARM_CP_IO, |
e4e91a21 | 2050 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr), |
fcd25206 PM |
2051 | .accessfn = pmreg_access, |
2052 | .writefn = pmovsr_write, | |
2053 | .raw_writefn = raw_write }, | |
978364f1 AF |
2054 | { .name = "PMOVSCLR_EL0", .state = ARM_CP_STATE_AA64, |
2055 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 3, | |
2056 | .access = PL0_RW, .accessfn = pmreg_access, | |
f4efb4b2 | 2057 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
978364f1 AF |
2058 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr), |
2059 | .writefn = pmovsr_write, | |
2060 | .raw_writefn = raw_write }, | |
200ac0ef | 2061 | { .name = "PMSWINC", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 4, |
f4efb4b2 AL |
2062 | .access = PL0_W, .accessfn = pmreg_access_swinc, |
2063 | .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
0d4bfd7d AL |
2064 | .writefn = pmswinc_write }, |
2065 | { .name = "PMSWINC_EL0", .state = ARM_CP_STATE_AA64, | |
2066 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 4, | |
f4efb4b2 AL |
2067 | .access = PL0_W, .accessfn = pmreg_access_swinc, |
2068 | .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
0d4bfd7d | 2069 | .writefn = pmswinc_write }, |
6b040780 WH |
2070 | { .name = "PMSELR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 5, |
2071 | .access = PL0_RW, .type = ARM_CP_ALIAS, | |
2072 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmselr), | |
6ecd0b6b | 2073 | .accessfn = pmreg_access_selr, .writefn = pmselr_write, |
6b040780 WH |
2074 | .raw_writefn = raw_write}, |
2075 | { .name = "PMSELR_EL0", .state = ARM_CP_STATE_AA64, | |
2076 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 5, | |
6ecd0b6b | 2077 | .access = PL0_RW, .accessfn = pmreg_access_selr, |
6b040780 WH |
2078 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmselr), |
2079 | .writefn = pmselr_write, .raw_writefn = raw_write, }, | |
200ac0ef | 2080 | { .name = "PMCCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 0, |
169c8938 | 2081 | .access = PL0_RW, .resetvalue = 0, .type = ARM_CP_ALIAS | ARM_CP_IO, |
421c7ebd | 2082 | .readfn = pmccntr_read, .writefn = pmccntr_write32, |
6ecd0b6b | 2083 | .accessfn = pmreg_access_ccntr }, |
8521466b AF |
2084 | { .name = "PMCCNTR_EL0", .state = ARM_CP_STATE_AA64, |
2085 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 0, | |
6ecd0b6b | 2086 | .access = PL0_RW, .accessfn = pmreg_access_ccntr, |
8521466b | 2087 | .type = ARM_CP_IO, |
980ebe87 AL |
2088 | .fieldoffset = offsetof(CPUARMState, cp15.c15_ccnt), |
2089 | .readfn = pmccntr_read, .writefn = pmccntr_write, | |
2090 | .raw_readfn = raw_read, .raw_writefn = raw_write, }, | |
4b8afa1f AL |
2091 | { .name = "PMCCFILTR", .cp = 15, .opc1 = 0, .crn = 14, .crm = 15, .opc2 = 7, |
2092 | .writefn = pmccfiltr_write_a32, .readfn = pmccfiltr_read_a32, | |
2093 | .access = PL0_RW, .accessfn = pmreg_access, | |
2094 | .type = ARM_CP_ALIAS | ARM_CP_IO, | |
2095 | .resetvalue = 0, }, | |
8521466b AF |
2096 | { .name = "PMCCFILTR_EL0", .state = ARM_CP_STATE_AA64, |
2097 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 15, .opc2 = 7, | |
980ebe87 | 2098 | .writefn = pmccfiltr_write, .raw_writefn = raw_write, |
8521466b AF |
2099 | .access = PL0_RW, .accessfn = pmreg_access, |
2100 | .type = ARM_CP_IO, | |
2101 | .fieldoffset = offsetof(CPUARMState, cp15.pmccfiltr_el0), | |
2102 | .resetvalue = 0, }, | |
200ac0ef | 2103 | { .name = "PMXEVTYPER", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 1, |
5ecdd3e4 AL |
2104 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
2105 | .accessfn = pmreg_access, | |
fdb86656 WH |
2106 | .writefn = pmxevtyper_write, .readfn = pmxevtyper_read }, |
2107 | { .name = "PMXEVTYPER_EL0", .state = ARM_CP_STATE_AA64, | |
2108 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 1, | |
5ecdd3e4 AL |
2109 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
2110 | .accessfn = pmreg_access, | |
fdb86656 | 2111 | .writefn = pmxevtyper_write, .readfn = pmxevtyper_read }, |
200ac0ef | 2112 | { .name = "PMXEVCNTR", .cp = 15, .crn = 9, .crm = 13, .opc1 = 0, .opc2 = 2, |
5ecdd3e4 AL |
2113 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
2114 | .accessfn = pmreg_access_xevcntr, | |
2115 | .writefn = pmxevcntr_write, .readfn = pmxevcntr_read }, | |
2116 | { .name = "PMXEVCNTR_EL0", .state = ARM_CP_STATE_AA64, | |
2117 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 13, .opc2 = 2, | |
2118 | .access = PL0_RW, .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
2119 | .accessfn = pmreg_access_xevcntr, | |
2120 | .writefn = pmxevcntr_write, .readfn = pmxevcntr_read }, | |
200ac0ef | 2121 | { .name = "PMUSERENR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 0, |
1fce1ba9 | 2122 | .access = PL0_R | PL1_RW, .accessfn = access_tpm, |
e4e91a21 | 2123 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmuserenr), |
200ac0ef | 2124 | .resetvalue = 0, |
d4e6df63 | 2125 | .writefn = pmuserenr_write, .raw_writefn = raw_write }, |
8a83ffc2 AF |
2126 | { .name = "PMUSERENR_EL0", .state = ARM_CP_STATE_AA64, |
2127 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 14, .opc2 = 0, | |
1fce1ba9 | 2128 | .access = PL0_R | PL1_RW, .accessfn = access_tpm, .type = ARM_CP_ALIAS, |
8a83ffc2 AF |
2129 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmuserenr), |
2130 | .resetvalue = 0, | |
2131 | .writefn = pmuserenr_write, .raw_writefn = raw_write }, | |
200ac0ef | 2132 | { .name = "PMINTENSET", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 1, |
1fce1ba9 | 2133 | .access = PL1_RW, .accessfn = access_tpm, |
b7d793ad | 2134 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
e6ec5457 | 2135 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pminten), |
200ac0ef | 2136 | .resetvalue = 0, |
d4e6df63 | 2137 | .writefn = pmintenset_write, .raw_writefn = raw_write }, |
e6ec5457 WH |
2138 | { .name = "PMINTENSET_EL1", .state = ARM_CP_STATE_AA64, |
2139 | .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 1, | |
2140 | .access = PL1_RW, .accessfn = access_tpm, | |
2141 | .type = ARM_CP_IO, | |
2142 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), | |
2143 | .writefn = pmintenset_write, .raw_writefn = raw_write, | |
2144 | .resetvalue = 0x0 }, | |
200ac0ef | 2145 | { .name = "PMINTENCLR", .cp = 15, .crn = 9, .crm = 14, .opc1 = 0, .opc2 = 2, |
fc5f6856 | 2146 | .access = PL1_RW, .accessfn = access_tpm, |
887c0f15 | 2147 | .type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW, |
200ac0ef | 2148 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), |
b061a82b | 2149 | .writefn = pmintenclr_write, }, |
978364f1 AF |
2150 | { .name = "PMINTENCLR_EL1", .state = ARM_CP_STATE_AA64, |
2151 | .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 2, | |
fc5f6856 | 2152 | .access = PL1_RW, .accessfn = access_tpm, |
887c0f15 | 2153 | .type = ARM_CP_ALIAS | ARM_CP_IO | ARM_CP_NO_RAW, |
978364f1 AF |
2154 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pminten), |
2155 | .writefn = pmintenclr_write }, | |
7da845b0 PM |
2156 | { .name = "CCSIDR", .state = ARM_CP_STATE_BOTH, |
2157 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 0, | |
630fcd4d | 2158 | .access = PL1_R, |
e2ce5fcd | 2159 | .accessfn = access_tid4, |
630fcd4d | 2160 | .readfn = ccsidr_read, .type = ARM_CP_NO_RAW }, |
7da845b0 PM |
2161 | { .name = "CSSELR", .state = ARM_CP_STATE_BOTH, |
2162 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 2, .opc2 = 0, | |
630fcd4d | 2163 | .access = PL1_RW, |
e2ce5fcd | 2164 | .accessfn = access_tid4, |
630fcd4d | 2165 | .writefn = csselr_write, .resetvalue = 0, |
b85a1fd6 FA |
2166 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.csselr_s), |
2167 | offsetof(CPUARMState, cp15.csselr_ns) } }, | |
9b37a28c FR |
2168 | /* |
2169 | * Auxiliary ID register: this actually has an IMPDEF value but for now | |
776d4e5c PM |
2170 | * just RAZ for all cores: |
2171 | */ | |
0ff644a7 PM |
2172 | { .name = "AIDR", .state = ARM_CP_STATE_BOTH, |
2173 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 7, | |
93fbc983 MZ |
2174 | .access = PL1_R, .type = ARM_CP_CONST, |
2175 | .accessfn = access_aa64_tid1, | |
2176 | .resetvalue = 0 }, | |
9b37a28c FR |
2177 | /* |
2178 | * Auxiliary fault status registers: these also are IMPDEF, and we | |
f32cdad5 PM |
2179 | * choose to RAZ/WI for all cores. |
2180 | */ | |
2181 | { .name = "AFSR0_EL1", .state = ARM_CP_STATE_BOTH, | |
2182 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 1, .opc2 = 0, | |
84929218 RH |
2183 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
2184 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
f32cdad5 PM |
2185 | { .name = "AFSR1_EL1", .state = ARM_CP_STATE_BOTH, |
2186 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 1, .opc2 = 1, | |
84929218 RH |
2187 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
2188 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
9b37a28c FR |
2189 | /* |
2190 | * MAIR can just read-as-written because we don't implement caches | |
b0fe2427 PM |
2191 | * and so don't need to care about memory attributes. |
2192 | */ | |
2193 | { .name = "MAIR_EL1", .state = ARM_CP_STATE_AA64, | |
2194 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, | |
84929218 RH |
2195 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
2196 | .fieldoffset = offsetof(CPUARMState, cp15.mair_el[1]), | |
b0fe2427 | 2197 | .resetvalue = 0 }, |
4cfb8ad8 PM |
2198 | { .name = "MAIR_EL3", .state = ARM_CP_STATE_AA64, |
2199 | .opc0 = 3, .opc1 = 6, .crn = 10, .crm = 2, .opc2 = 0, | |
2200 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.mair_el[3]), | |
2201 | .resetvalue = 0 }, | |
9b37a28c FR |
2202 | /* |
2203 | * For non-long-descriptor page tables these are PRRR and NMRR; | |
b0fe2427 | 2204 | * regardless they still act as reads-as-written for QEMU. |
b0fe2427 | 2205 | */ |
9b37a28c FR |
2206 | /* |
2207 | * MAIR0/1 are defined separately from their 64-bit counterpart which | |
be693c87 GB |
2208 | * allows them to assign the correct fieldoffset based on the endianness |
2209 | * handled in the field definitions. | |
2210 | */ | |
a903c449 | 2211 | { .name = "MAIR0", .state = ARM_CP_STATE_AA32, |
84929218 RH |
2212 | .cp = 15, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 0, |
2213 | .access = PL1_RW, .accessfn = access_tvm_trvm, | |
be693c87 GB |
2214 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.mair0_s), |
2215 | offsetof(CPUARMState, cp15.mair0_ns) }, | |
b0fe2427 | 2216 | .resetfn = arm_cp_reset_ignore }, |
a903c449 | 2217 | { .name = "MAIR1", .state = ARM_CP_STATE_AA32, |
84929218 RH |
2218 | .cp = 15, .opc1 = 0, .crn = 10, .crm = 2, .opc2 = 1, |
2219 | .access = PL1_RW, .accessfn = access_tvm_trvm, | |
be693c87 GB |
2220 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.mair1_s), |
2221 | offsetof(CPUARMState, cp15.mair1_ns) }, | |
b0fe2427 | 2222 | .resetfn = arm_cp_reset_ignore }, |
1090b9c6 PM |
2223 | { .name = "ISR_EL1", .state = ARM_CP_STATE_BOTH, |
2224 | .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 1, .opc2 = 0, | |
7a0e58fa | 2225 | .type = ARM_CP_NO_RAW, .access = PL1_R, .readfn = isr_read }, |
995939a6 PM |
2226 | /* 32 bit ITLB invalidates */ |
2227 | { .name = "ITLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 0, | |
30881b73 RH |
2228 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2229 | .writefn = tlbiall_write }, | |
995939a6 | 2230 | { .name = "ITLBIMVA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 1, |
30881b73 RH |
2231 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2232 | .writefn = tlbimva_write }, | |
995939a6 | 2233 | { .name = "ITLBIASID", .cp = 15, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 2, |
30881b73 RH |
2234 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2235 | .writefn = tlbiasid_write }, | |
995939a6 PM |
2236 | /* 32 bit DTLB invalidates */ |
2237 | { .name = "DTLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 0, | |
30881b73 RH |
2238 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2239 | .writefn = tlbiall_write }, | |
995939a6 | 2240 | { .name = "DTLBIMVA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 1, |
30881b73 RH |
2241 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2242 | .writefn = tlbimva_write }, | |
995939a6 | 2243 | { .name = "DTLBIASID", .cp = 15, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 2, |
30881b73 RH |
2244 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2245 | .writefn = tlbiasid_write }, | |
995939a6 PM |
2246 | /* 32 bit TLB invalidates */ |
2247 | { .name = "TLBIALL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 0, | |
30881b73 RH |
2248 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2249 | .writefn = tlbiall_write }, | |
995939a6 | 2250 | { .name = "TLBIMVA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 1, |
30881b73 RH |
2251 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2252 | .writefn = tlbimva_write }, | |
995939a6 | 2253 | { .name = "TLBIASID", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 2, |
30881b73 RH |
2254 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2255 | .writefn = tlbiasid_write }, | |
995939a6 | 2256 | { .name = "TLBIMVAA", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 3, |
30881b73 RH |
2257 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
2258 | .writefn = tlbimvaa_write }, | |
995939a6 PM |
2259 | }; |
2260 | ||
2261 | static const ARMCPRegInfo v7mp_cp_reginfo[] = { | |
2262 | /* 32 bit TLB invalidates, Inner Shareable */ | |
2263 | { .name = "TLBIALLIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 0, | |
0f66d223 | 2264 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
30881b73 | 2265 | .writefn = tlbiall_is_write }, |
995939a6 | 2266 | { .name = "TLBIMVAIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 1, |
0f66d223 | 2267 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
30881b73 | 2268 | .writefn = tlbimva_is_write }, |
995939a6 | 2269 | { .name = "TLBIASIDIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 2, |
0f66d223 | 2270 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
fa439fc5 | 2271 | .writefn = tlbiasid_is_write }, |
995939a6 | 2272 | { .name = "TLBIMVAAIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 3, |
0f66d223 | 2273 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
fa439fc5 | 2274 | .writefn = tlbimvaa_is_write }, |
e9aa6c21 PM |
2275 | }; |
2276 | ||
327dd510 AL |
2277 | static const ARMCPRegInfo pmovsset_cp_reginfo[] = { |
2278 | /* PMOVSSET is not implemented in v7 before v7ve */ | |
2279 | { .name = "PMOVSSET", .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 3, | |
2280 | .access = PL0_RW, .accessfn = pmreg_access, | |
f4efb4b2 | 2281 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
327dd510 AL |
2282 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmovsr), |
2283 | .writefn = pmovsset_write, | |
2284 | .raw_writefn = raw_write }, | |
2285 | { .name = "PMOVSSET_EL0", .state = ARM_CP_STATE_AA64, | |
2286 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 14, .opc2 = 3, | |
2287 | .access = PL0_RW, .accessfn = pmreg_access, | |
f4efb4b2 | 2288 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
327dd510 AL |
2289 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmovsr), |
2290 | .writefn = pmovsset_write, | |
2291 | .raw_writefn = raw_write }, | |
327dd510 AL |
2292 | }; |
2293 | ||
c4241c7d PM |
2294 | static void teecr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
2295 | uint64_t value) | |
c326b979 PM |
2296 | { |
2297 | value &= 1; | |
2298 | env->teecr = value; | |
c326b979 PM |
2299 | } |
2300 | ||
cc7613bf PM |
2301 | static CPAccessResult teecr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2302 | bool isread) | |
2303 | { | |
2304 | /* | |
2305 | * HSTR.TTEE only exists in v7A, not v8A, but v8A doesn't have T2EE | |
2306 | * at all, so we don't need to check whether we're v8A. | |
2307 | */ | |
2308 | if (arm_current_el(env) < 2 && !arm_is_secure_below_el3(env) && | |
2309 | (env->cp15.hstr_el2 & HSTR_TTEE)) { | |
2310 | return CP_ACCESS_TRAP_EL2; | |
2311 | } | |
2312 | return CP_ACCESS_OK; | |
2313 | } | |
2314 | ||
3f208fd7 PM |
2315 | static CPAccessResult teehbr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2316 | bool isread) | |
c326b979 | 2317 | { |
dcbff19b | 2318 | if (arm_current_el(env) == 0 && (env->teecr & 1)) { |
92611c00 | 2319 | return CP_ACCESS_TRAP; |
c326b979 | 2320 | } |
cc7613bf | 2321 | return teecr_access(env, ri, isread); |
c326b979 PM |
2322 | } |
2323 | ||
2324 | static const ARMCPRegInfo t2ee_cp_reginfo[] = { | |
2325 | { .name = "TEECR", .cp = 14, .crn = 0, .crm = 0, .opc1 = 6, .opc2 = 0, | |
2326 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, teecr), | |
2327 | .resetvalue = 0, | |
cc7613bf | 2328 | .writefn = teecr_write, .accessfn = teecr_access }, |
c326b979 PM |
2329 | { .name = "TEEHBR", .cp = 14, .crn = 1, .crm = 0, .opc1 = 6, .opc2 = 0, |
2330 | .access = PL0_RW, .fieldoffset = offsetof(CPUARMState, teehbr), | |
92611c00 | 2331 | .accessfn = teehbr_access, .resetvalue = 0 }, |
c326b979 PM |
2332 | }; |
2333 | ||
4d31c596 | 2334 | static const ARMCPRegInfo v6k_cp_reginfo[] = { |
e4fe830b PM |
2335 | { .name = "TPIDR_EL0", .state = ARM_CP_STATE_AA64, |
2336 | .opc0 = 3, .opc1 = 3, .opc2 = 2, .crn = 13, .crm = 0, | |
2337 | .access = PL0_RW, | |
54bf36ed | 2338 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[0]), .resetvalue = 0 }, |
4d31c596 PM |
2339 | { .name = "TPIDRURW", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 2, |
2340 | .access = PL0_RW, | |
54bf36ed FA |
2341 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrurw_s), |
2342 | offsetoflow32(CPUARMState, cp15.tpidrurw_ns) }, | |
e4fe830b PM |
2343 | .resetfn = arm_cp_reset_ignore }, |
2344 | { .name = "TPIDRRO_EL0", .state = ARM_CP_STATE_AA64, | |
2345 | .opc0 = 3, .opc1 = 3, .opc2 = 3, .crn = 13, .crm = 0, | |
04215eb1 | 2346 | .access = PL0_R | PL1_W, |
54bf36ed FA |
2347 | .fieldoffset = offsetof(CPUARMState, cp15.tpidrro_el[0]), |
2348 | .resetvalue = 0}, | |
4d31c596 | 2349 | { .name = "TPIDRURO", .cp = 15, .crn = 13, .crm = 0, .opc1 = 0, .opc2 = 3, |
04215eb1 | 2350 | .access = PL0_R | PL1_W, |
54bf36ed FA |
2351 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidruro_s), |
2352 | offsetoflow32(CPUARMState, cp15.tpidruro_ns) }, | |
e4fe830b | 2353 | .resetfn = arm_cp_reset_ignore }, |
54bf36ed | 2354 | { .name = "TPIDR_EL1", .state = ARM_CP_STATE_AA64, |
e4fe830b | 2355 | .opc0 = 3, .opc1 = 0, .opc2 = 4, .crn = 13, .crm = 0, |
4d31c596 | 2356 | .access = PL1_RW, |
54bf36ed FA |
2357 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[1]), .resetvalue = 0 }, |
2358 | { .name = "TPIDRPRW", .opc1 = 0, .cp = 15, .crn = 13, .crm = 0, .opc2 = 4, | |
2359 | .access = PL1_RW, | |
2360 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tpidrprw_s), | |
2361 | offsetoflow32(CPUARMState, cp15.tpidrprw_ns) }, | |
2362 | .resetvalue = 0 }, | |
4d31c596 PM |
2363 | }; |
2364 | ||
55d284af PM |
2365 | #ifndef CONFIG_USER_ONLY |
2366 | ||
3f208fd7 PM |
2367 | static CPAccessResult gt_cntfrq_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2368 | bool isread) | |
00108f2d | 2369 | { |
9b37a28c FR |
2370 | /* |
2371 | * CNTFRQ: not visible from PL0 if both PL0PCTEN and PL0VCTEN are zero. | |
75502672 PM |
2372 | * Writable only at the highest implemented exception level. |
2373 | */ | |
2374 | int el = arm_current_el(env); | |
5bc84371 RH |
2375 | uint64_t hcr; |
2376 | uint32_t cntkctl; | |
75502672 PM |
2377 | |
2378 | switch (el) { | |
2379 | case 0: | |
5bc84371 RH |
2380 | hcr = arm_hcr_el2_eff(env); |
2381 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2382 | cntkctl = env->cp15.cnthctl_el2; | |
2383 | } else { | |
2384 | cntkctl = env->cp15.c14_cntkctl; | |
2385 | } | |
2386 | if (!extract32(cntkctl, 0, 2)) { | |
75502672 PM |
2387 | return CP_ACCESS_TRAP; |
2388 | } | |
2389 | break; | |
2390 | case 1: | |
2391 | if (!isread && ri->state == ARM_CP_STATE_AA32 && | |
2392 | arm_is_secure_below_el3(env)) { | |
2393 | /* Accesses from 32-bit Secure EL1 UNDEF (*not* trap to EL3!) */ | |
2394 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
2395 | } | |
2396 | break; | |
2397 | case 2: | |
2398 | case 3: | |
2399 | break; | |
00108f2d | 2400 | } |
75502672 PM |
2401 | |
2402 | if (!isread && el < arm_highest_el(env)) { | |
2403 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
2404 | } | |
2405 | ||
00108f2d PM |
2406 | return CP_ACCESS_OK; |
2407 | } | |
2408 | ||
3f208fd7 PM |
2409 | static CPAccessResult gt_counter_access(CPUARMState *env, int timeridx, |
2410 | bool isread) | |
00108f2d | 2411 | { |
0b6440af | 2412 | unsigned int cur_el = arm_current_el(env); |
e6ef0169 | 2413 | bool has_el2 = arm_is_el2_enabled(env); |
5bc84371 | 2414 | uint64_t hcr = arm_hcr_el2_eff(env); |
0b6440af | 2415 | |
5bc84371 RH |
2416 | switch (cur_el) { |
2417 | case 0: | |
2418 | /* If HCR_EL2.<E2H,TGE> == '11': check CNTHCTL_EL2.EL0[PV]CTEN. */ | |
2419 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2420 | return (extract32(env->cp15.cnthctl_el2, timeridx, 1) | |
2421 | ? CP_ACCESS_OK : CP_ACCESS_TRAP_EL2); | |
2422 | } | |
0b6440af | 2423 | |
5bc84371 RH |
2424 | /* CNT[PV]CT: not visible from PL0 if EL0[PV]CTEN is zero */ |
2425 | if (!extract32(env->cp15.c14_cntkctl, timeridx, 1)) { | |
2426 | return CP_ACCESS_TRAP; | |
2427 | } | |
2428 | ||
2429 | /* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PCTEN. */ | |
2430 | if (hcr & HCR_E2H) { | |
2431 | if (timeridx == GTIMER_PHYS && | |
2432 | !extract32(env->cp15.cnthctl_el2, 10, 1)) { | |
2433 | return CP_ACCESS_TRAP_EL2; | |
2434 | } | |
2435 | } else { | |
2436 | /* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */ | |
e6ef0169 | 2437 | if (has_el2 && timeridx == GTIMER_PHYS && |
5bc84371 RH |
2438 | !extract32(env->cp15.cnthctl_el2, 1, 1)) { |
2439 | return CP_ACCESS_TRAP_EL2; | |
2440 | } | |
2441 | } | |
2442 | break; | |
2443 | ||
2444 | case 1: | |
2445 | /* Check CNTHCTL_EL2.EL1PCTEN, which changes location based on E2H. */ | |
e6ef0169 | 2446 | if (has_el2 && timeridx == GTIMER_PHYS && |
5bc84371 RH |
2447 | (hcr & HCR_E2H |
2448 | ? !extract32(env->cp15.cnthctl_el2, 10, 1) | |
2449 | : !extract32(env->cp15.cnthctl_el2, 0, 1))) { | |
2450 | return CP_ACCESS_TRAP_EL2; | |
2451 | } | |
2452 | break; | |
0b6440af | 2453 | } |
00108f2d PM |
2454 | return CP_ACCESS_OK; |
2455 | } | |
2456 | ||
3f208fd7 PM |
2457 | static CPAccessResult gt_timer_access(CPUARMState *env, int timeridx, |
2458 | bool isread) | |
00108f2d | 2459 | { |
0b6440af | 2460 | unsigned int cur_el = arm_current_el(env); |
e6ef0169 | 2461 | bool has_el2 = arm_is_el2_enabled(env); |
5bc84371 | 2462 | uint64_t hcr = arm_hcr_el2_eff(env); |
0b6440af | 2463 | |
5bc84371 RH |
2464 | switch (cur_el) { |
2465 | case 0: | |
2466 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2467 | /* If HCR_EL2.<E2H,TGE> == '11': check CNTHCTL_EL2.EL0[PV]TEN. */ | |
2468 | return (extract32(env->cp15.cnthctl_el2, 9 - timeridx, 1) | |
2469 | ? CP_ACCESS_OK : CP_ACCESS_TRAP_EL2); | |
2470 | } | |
0b6440af | 2471 | |
5bc84371 RH |
2472 | /* |
2473 | * CNT[PV]_CVAL, CNT[PV]_CTL, CNT[PV]_TVAL: not visible from | |
2474 | * EL0 if EL0[PV]TEN is zero. | |
2475 | */ | |
2476 | if (!extract32(env->cp15.c14_cntkctl, 9 - timeridx, 1)) { | |
2477 | return CP_ACCESS_TRAP; | |
2478 | } | |
2479 | /* fall through */ | |
2480 | ||
2481 | case 1: | |
e6ef0169 | 2482 | if (has_el2 && timeridx == GTIMER_PHYS) { |
5bc84371 RH |
2483 | if (hcr & HCR_E2H) { |
2484 | /* If HCR_EL2.<E2H,TGE> == '10': check CNTHCTL_EL2.EL1PTEN. */ | |
2485 | if (!extract32(env->cp15.cnthctl_el2, 11, 1)) { | |
2486 | return CP_ACCESS_TRAP_EL2; | |
2487 | } | |
2488 | } else { | |
2489 | /* If HCR_EL2.<E2H> == 0: check CNTHCTL_EL2.EL1PCEN. */ | |
2490 | if (!extract32(env->cp15.cnthctl_el2, 1, 1)) { | |
2491 | return CP_ACCESS_TRAP_EL2; | |
2492 | } | |
2493 | } | |
2494 | } | |
2495 | break; | |
0b6440af | 2496 | } |
00108f2d PM |
2497 | return CP_ACCESS_OK; |
2498 | } | |
2499 | ||
2500 | static CPAccessResult gt_pct_access(CPUARMState *env, | |
3f208fd7 PM |
2501 | const ARMCPRegInfo *ri, |
2502 | bool isread) | |
00108f2d | 2503 | { |
3f208fd7 | 2504 | return gt_counter_access(env, GTIMER_PHYS, isread); |
00108f2d PM |
2505 | } |
2506 | ||
2507 | static CPAccessResult gt_vct_access(CPUARMState *env, | |
3f208fd7 PM |
2508 | const ARMCPRegInfo *ri, |
2509 | bool isread) | |
00108f2d | 2510 | { |
3f208fd7 | 2511 | return gt_counter_access(env, GTIMER_VIRT, isread); |
00108f2d PM |
2512 | } |
2513 | ||
3f208fd7 PM |
2514 | static CPAccessResult gt_ptimer_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2515 | bool isread) | |
00108f2d | 2516 | { |
3f208fd7 | 2517 | return gt_timer_access(env, GTIMER_PHYS, isread); |
00108f2d PM |
2518 | } |
2519 | ||
3f208fd7 PM |
2520 | static CPAccessResult gt_vtimer_access(CPUARMState *env, const ARMCPRegInfo *ri, |
2521 | bool isread) | |
00108f2d | 2522 | { |
3f208fd7 | 2523 | return gt_timer_access(env, GTIMER_VIRT, isread); |
00108f2d PM |
2524 | } |
2525 | ||
b4d3978c | 2526 | static CPAccessResult gt_stimer_access(CPUARMState *env, |
3f208fd7 PM |
2527 | const ARMCPRegInfo *ri, |
2528 | bool isread) | |
b4d3978c | 2529 | { |
9b37a28c FR |
2530 | /* |
2531 | * The AArch64 register view of the secure physical timer is | |
b4d3978c PM |
2532 | * always accessible from EL3, and configurably accessible from |
2533 | * Secure EL1. | |
2534 | */ | |
2535 | switch (arm_current_el(env)) { | |
2536 | case 1: | |
2537 | if (!arm_is_secure(env)) { | |
2538 | return CP_ACCESS_TRAP; | |
2539 | } | |
2540 | if (!(env->cp15.scr_el3 & SCR_ST)) { | |
2541 | return CP_ACCESS_TRAP_EL3; | |
2542 | } | |
2543 | return CP_ACCESS_OK; | |
2544 | case 0: | |
2545 | case 2: | |
2546 | return CP_ACCESS_TRAP; | |
2547 | case 3: | |
2548 | return CP_ACCESS_OK; | |
2549 | default: | |
2550 | g_assert_not_reached(); | |
2551 | } | |
2552 | } | |
2553 | ||
55d284af PM |
2554 | static uint64_t gt_get_countervalue(CPUARMState *env) |
2555 | { | |
7def8754 AJ |
2556 | ARMCPU *cpu = env_archcpu(env); |
2557 | ||
2558 | return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) / gt_cntfrq_period_ns(cpu); | |
55d284af PM |
2559 | } |
2560 | ||
2561 | static void gt_recalc_timer(ARMCPU *cpu, int timeridx) | |
2562 | { | |
2563 | ARMGenericTimer *gt = &cpu->env.cp15.c14_timer[timeridx]; | |
2564 | ||
2565 | if (gt->ctl & 1) { | |
9b37a28c FR |
2566 | /* |
2567 | * Timer enabled: calculate and set current ISTATUS, irq, and | |
55d284af PM |
2568 | * reset timer to when ISTATUS next has to change |
2569 | */ | |
edac4d8a EI |
2570 | uint64_t offset = timeridx == GTIMER_VIRT ? |
2571 | cpu->env.cp15.cntvoff_el2 : 0; | |
55d284af PM |
2572 | uint64_t count = gt_get_countervalue(&cpu->env); |
2573 | /* Note that this must be unsigned 64 bit arithmetic: */ | |
edac4d8a | 2574 | int istatus = count - offset >= gt->cval; |
55d284af | 2575 | uint64_t nexttick; |
194cbc49 | 2576 | int irqstate; |
55d284af PM |
2577 | |
2578 | gt->ctl = deposit32(gt->ctl, 2, 1, istatus); | |
194cbc49 PM |
2579 | |
2580 | irqstate = (istatus && !(gt->ctl & 2)); | |
2581 | qemu_set_irq(cpu->gt_timer_outputs[timeridx], irqstate); | |
2582 | ||
55d284af PM |
2583 | if (istatus) { |
2584 | /* Next transition is when count rolls back over to zero */ | |
2585 | nexttick = UINT64_MAX; | |
2586 | } else { | |
2587 | /* Next transition is when we hit cval */ | |
edac4d8a | 2588 | nexttick = gt->cval + offset; |
55d284af | 2589 | } |
9b37a28c FR |
2590 | /* |
2591 | * Note that the desired next expiry time might be beyond the | |
55d284af PM |
2592 | * signed-64-bit range of a QEMUTimer -- in this case we just |
2593 | * set the timer for as far in the future as possible. When the | |
2594 | * timer expires we will reset the timer for any remaining period. | |
2595 | */ | |
7def8754 | 2596 | if (nexttick > INT64_MAX / gt_cntfrq_period_ns(cpu)) { |
4a0245b6 AJ |
2597 | timer_mod_ns(cpu->gt_timer[timeridx], INT64_MAX); |
2598 | } else { | |
2599 | timer_mod(cpu->gt_timer[timeridx], nexttick); | |
55d284af | 2600 | } |
194cbc49 | 2601 | trace_arm_gt_recalc(timeridx, irqstate, nexttick); |
55d284af PM |
2602 | } else { |
2603 | /* Timer disabled: ISTATUS and timer output always clear */ | |
2604 | gt->ctl &= ~4; | |
2605 | qemu_set_irq(cpu->gt_timer_outputs[timeridx], 0); | |
bc72ad67 | 2606 | timer_del(cpu->gt_timer[timeridx]); |
194cbc49 | 2607 | trace_arm_gt_recalc_disabled(timeridx); |
55d284af PM |
2608 | } |
2609 | } | |
2610 | ||
0e3eca4c EI |
2611 | static void gt_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri, |
2612 | int timeridx) | |
55d284af | 2613 | { |
2fc0cc0e | 2614 | ARMCPU *cpu = env_archcpu(env); |
55d284af | 2615 | |
bc72ad67 | 2616 | timer_del(cpu->gt_timer[timeridx]); |
55d284af PM |
2617 | } |
2618 | ||
c4241c7d | 2619 | static uint64_t gt_cnt_read(CPUARMState *env, const ARMCPRegInfo *ri) |
55d284af | 2620 | { |
c4241c7d | 2621 | return gt_get_countervalue(env); |
55d284af PM |
2622 | } |
2623 | ||
53d1f856 RH |
2624 | static uint64_t gt_virt_cnt_offset(CPUARMState *env) |
2625 | { | |
2626 | uint64_t hcr; | |
2627 | ||
2628 | switch (arm_current_el(env)) { | |
2629 | case 2: | |
2630 | hcr = arm_hcr_el2_eff(env); | |
2631 | if (hcr & HCR_E2H) { | |
2632 | return 0; | |
2633 | } | |
2634 | break; | |
2635 | case 0: | |
2636 | hcr = arm_hcr_el2_eff(env); | |
2637 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
2638 | return 0; | |
2639 | } | |
2640 | break; | |
2641 | } | |
2642 | ||
2643 | return env->cp15.cntvoff_el2; | |
2644 | } | |
2645 | ||
edac4d8a EI |
2646 | static uint64_t gt_virt_cnt_read(CPUARMState *env, const ARMCPRegInfo *ri) |
2647 | { | |
53d1f856 | 2648 | return gt_get_countervalue(env) - gt_virt_cnt_offset(env); |
edac4d8a EI |
2649 | } |
2650 | ||
c4241c7d | 2651 | static void gt_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, |
0e3eca4c | 2652 | int timeridx, |
c4241c7d | 2653 | uint64_t value) |
55d284af | 2654 | { |
194cbc49 | 2655 | trace_arm_gt_cval_write(timeridx, value); |
55d284af | 2656 | env->cp15.c14_timer[timeridx].cval = value; |
2fc0cc0e | 2657 | gt_recalc_timer(env_archcpu(env), timeridx); |
55d284af | 2658 | } |
c4241c7d | 2659 | |
0e3eca4c EI |
2660 | static uint64_t gt_tval_read(CPUARMState *env, const ARMCPRegInfo *ri, |
2661 | int timeridx) | |
55d284af | 2662 | { |
53d1f856 RH |
2663 | uint64_t offset = 0; |
2664 | ||
2665 | switch (timeridx) { | |
2666 | case GTIMER_VIRT: | |
8c94b071 | 2667 | case GTIMER_HYPVIRT: |
53d1f856 RH |
2668 | offset = gt_virt_cnt_offset(env); |
2669 | break; | |
2670 | } | |
55d284af | 2671 | |
c4241c7d | 2672 | return (uint32_t)(env->cp15.c14_timer[timeridx].cval - |
edac4d8a | 2673 | (gt_get_countervalue(env) - offset)); |
55d284af PM |
2674 | } |
2675 | ||
c4241c7d | 2676 | static void gt_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, |
0e3eca4c | 2677 | int timeridx, |
c4241c7d | 2678 | uint64_t value) |
55d284af | 2679 | { |
53d1f856 RH |
2680 | uint64_t offset = 0; |
2681 | ||
2682 | switch (timeridx) { | |
2683 | case GTIMER_VIRT: | |
8c94b071 | 2684 | case GTIMER_HYPVIRT: |
53d1f856 RH |
2685 | offset = gt_virt_cnt_offset(env); |
2686 | break; | |
2687 | } | |
55d284af | 2688 | |
194cbc49 | 2689 | trace_arm_gt_tval_write(timeridx, value); |
edac4d8a | 2690 | env->cp15.c14_timer[timeridx].cval = gt_get_countervalue(env) - offset + |
18084b2f | 2691 | sextract64(value, 0, 32); |
2fc0cc0e | 2692 | gt_recalc_timer(env_archcpu(env), timeridx); |
55d284af PM |
2693 | } |
2694 | ||
c4241c7d | 2695 | static void gt_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, |
0e3eca4c | 2696 | int timeridx, |
c4241c7d | 2697 | uint64_t value) |
55d284af | 2698 | { |
2fc0cc0e | 2699 | ARMCPU *cpu = env_archcpu(env); |
55d284af PM |
2700 | uint32_t oldval = env->cp15.c14_timer[timeridx].ctl; |
2701 | ||
194cbc49 | 2702 | trace_arm_gt_ctl_write(timeridx, value); |
d3afacc7 | 2703 | env->cp15.c14_timer[timeridx].ctl = deposit64(oldval, 0, 2, value); |
55d284af PM |
2704 | if ((oldval ^ value) & 1) { |
2705 | /* Enable toggled */ | |
2706 | gt_recalc_timer(cpu, timeridx); | |
d3afacc7 | 2707 | } else if ((oldval ^ value) & 2) { |
9b37a28c FR |
2708 | /* |
2709 | * IMASK toggled: don't need to recalculate, | |
55d284af PM |
2710 | * just set the interrupt line based on ISTATUS |
2711 | */ | |
194cbc49 PM |
2712 | int irqstate = (oldval & 4) && !(value & 2); |
2713 | ||
2714 | trace_arm_gt_imask_toggle(timeridx, irqstate); | |
2715 | qemu_set_irq(cpu->gt_timer_outputs[timeridx], irqstate); | |
55d284af | 2716 | } |
55d284af PM |
2717 | } |
2718 | ||
0e3eca4c EI |
2719 | static void gt_phys_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2720 | { | |
2721 | gt_timer_reset(env, ri, GTIMER_PHYS); | |
2722 | } | |
2723 | ||
2724 | static void gt_phys_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2725 | uint64_t value) | |
2726 | { | |
2727 | gt_cval_write(env, ri, GTIMER_PHYS, value); | |
2728 | } | |
2729 | ||
2730 | static uint64_t gt_phys_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2731 | { | |
2732 | return gt_tval_read(env, ri, GTIMER_PHYS); | |
2733 | } | |
2734 | ||
2735 | static void gt_phys_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2736 | uint64_t value) | |
2737 | { | |
2738 | gt_tval_write(env, ri, GTIMER_PHYS, value); | |
2739 | } | |
2740 | ||
2741 | static void gt_phys_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2742 | uint64_t value) | |
2743 | { | |
2744 | gt_ctl_write(env, ri, GTIMER_PHYS, value); | |
2745 | } | |
2746 | ||
bb5972e4 RH |
2747 | static int gt_phys_redir_timeridx(CPUARMState *env) |
2748 | { | |
2749 | switch (arm_mmu_idx(env)) { | |
2750 | case ARMMMUIdx_E20_0: | |
2751 | case ARMMMUIdx_E20_2: | |
452ef8cb | 2752 | case ARMMMUIdx_E20_2_PAN: |
bb5972e4 RH |
2753 | return GTIMER_HYP; |
2754 | default: | |
2755 | return GTIMER_PHYS; | |
2756 | } | |
2757 | } | |
2758 | ||
2759 | static int gt_virt_redir_timeridx(CPUARMState *env) | |
2760 | { | |
2761 | switch (arm_mmu_idx(env)) { | |
2762 | case ARMMMUIdx_E20_0: | |
2763 | case ARMMMUIdx_E20_2: | |
452ef8cb | 2764 | case ARMMMUIdx_E20_2_PAN: |
bb5972e4 RH |
2765 | return GTIMER_HYPVIRT; |
2766 | default: | |
2767 | return GTIMER_VIRT; | |
2768 | } | |
2769 | } | |
2770 | ||
2771 | static uint64_t gt_phys_redir_cval_read(CPUARMState *env, | |
2772 | const ARMCPRegInfo *ri) | |
2773 | { | |
2774 | int timeridx = gt_phys_redir_timeridx(env); | |
2775 | return env->cp15.c14_timer[timeridx].cval; | |
2776 | } | |
2777 | ||
2778 | static void gt_phys_redir_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2779 | uint64_t value) | |
2780 | { | |
2781 | int timeridx = gt_phys_redir_timeridx(env); | |
2782 | gt_cval_write(env, ri, timeridx, value); | |
2783 | } | |
2784 | ||
2785 | static uint64_t gt_phys_redir_tval_read(CPUARMState *env, | |
2786 | const ARMCPRegInfo *ri) | |
2787 | { | |
2788 | int timeridx = gt_phys_redir_timeridx(env); | |
2789 | return gt_tval_read(env, ri, timeridx); | |
2790 | } | |
2791 | ||
2792 | static void gt_phys_redir_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2793 | uint64_t value) | |
2794 | { | |
2795 | int timeridx = gt_phys_redir_timeridx(env); | |
2796 | gt_tval_write(env, ri, timeridx, value); | |
2797 | } | |
2798 | ||
2799 | static uint64_t gt_phys_redir_ctl_read(CPUARMState *env, | |
2800 | const ARMCPRegInfo *ri) | |
2801 | { | |
2802 | int timeridx = gt_phys_redir_timeridx(env); | |
2803 | return env->cp15.c14_timer[timeridx].ctl; | |
2804 | } | |
2805 | ||
2806 | static void gt_phys_redir_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2807 | uint64_t value) | |
2808 | { | |
2809 | int timeridx = gt_phys_redir_timeridx(env); | |
2810 | gt_ctl_write(env, ri, timeridx, value); | |
2811 | } | |
2812 | ||
0e3eca4c EI |
2813 | static void gt_virt_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2814 | { | |
2815 | gt_timer_reset(env, ri, GTIMER_VIRT); | |
2816 | } | |
2817 | ||
2818 | static void gt_virt_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2819 | uint64_t value) | |
2820 | { | |
2821 | gt_cval_write(env, ri, GTIMER_VIRT, value); | |
2822 | } | |
2823 | ||
2824 | static uint64_t gt_virt_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2825 | { | |
2826 | return gt_tval_read(env, ri, GTIMER_VIRT); | |
2827 | } | |
2828 | ||
2829 | static void gt_virt_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2830 | uint64_t value) | |
2831 | { | |
2832 | gt_tval_write(env, ri, GTIMER_VIRT, value); | |
2833 | } | |
2834 | ||
2835 | static void gt_virt_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2836 | uint64_t value) | |
2837 | { | |
2838 | gt_ctl_write(env, ri, GTIMER_VIRT, value); | |
2839 | } | |
2840 | ||
edac4d8a EI |
2841 | static void gt_cntvoff_write(CPUARMState *env, const ARMCPRegInfo *ri, |
2842 | uint64_t value) | |
2843 | { | |
2fc0cc0e | 2844 | ARMCPU *cpu = env_archcpu(env); |
edac4d8a | 2845 | |
194cbc49 | 2846 | trace_arm_gt_cntvoff_write(value); |
edac4d8a EI |
2847 | raw_write(env, ri, value); |
2848 | gt_recalc_timer(cpu, GTIMER_VIRT); | |
2849 | } | |
2850 | ||
bb5972e4 RH |
2851 | static uint64_t gt_virt_redir_cval_read(CPUARMState *env, |
2852 | const ARMCPRegInfo *ri) | |
2853 | { | |
2854 | int timeridx = gt_virt_redir_timeridx(env); | |
2855 | return env->cp15.c14_timer[timeridx].cval; | |
2856 | } | |
2857 | ||
2858 | static void gt_virt_redir_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2859 | uint64_t value) | |
2860 | { | |
2861 | int timeridx = gt_virt_redir_timeridx(env); | |
2862 | gt_cval_write(env, ri, timeridx, value); | |
2863 | } | |
2864 | ||
2865 | static uint64_t gt_virt_redir_tval_read(CPUARMState *env, | |
2866 | const ARMCPRegInfo *ri) | |
2867 | { | |
2868 | int timeridx = gt_virt_redir_timeridx(env); | |
2869 | return gt_tval_read(env, ri, timeridx); | |
2870 | } | |
2871 | ||
2872 | static void gt_virt_redir_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2873 | uint64_t value) | |
2874 | { | |
2875 | int timeridx = gt_virt_redir_timeridx(env); | |
2876 | gt_tval_write(env, ri, timeridx, value); | |
2877 | } | |
2878 | ||
2879 | static uint64_t gt_virt_redir_ctl_read(CPUARMState *env, | |
2880 | const ARMCPRegInfo *ri) | |
2881 | { | |
2882 | int timeridx = gt_virt_redir_timeridx(env); | |
2883 | return env->cp15.c14_timer[timeridx].ctl; | |
2884 | } | |
2885 | ||
2886 | static void gt_virt_redir_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2887 | uint64_t value) | |
2888 | { | |
2889 | int timeridx = gt_virt_redir_timeridx(env); | |
2890 | gt_ctl_write(env, ri, timeridx, value); | |
2891 | } | |
2892 | ||
b0e66d95 EI |
2893 | static void gt_hyp_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2894 | { | |
2895 | gt_timer_reset(env, ri, GTIMER_HYP); | |
2896 | } | |
2897 | ||
2898 | static void gt_hyp_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2899 | uint64_t value) | |
2900 | { | |
2901 | gt_cval_write(env, ri, GTIMER_HYP, value); | |
2902 | } | |
2903 | ||
2904 | static uint64_t gt_hyp_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2905 | { | |
2906 | return gt_tval_read(env, ri, GTIMER_HYP); | |
2907 | } | |
2908 | ||
2909 | static void gt_hyp_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2910 | uint64_t value) | |
2911 | { | |
2912 | gt_tval_write(env, ri, GTIMER_HYP, value); | |
2913 | } | |
2914 | ||
2915 | static void gt_hyp_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2916 | uint64_t value) | |
2917 | { | |
2918 | gt_ctl_write(env, ri, GTIMER_HYP, value); | |
2919 | } | |
2920 | ||
b4d3978c PM |
2921 | static void gt_sec_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2922 | { | |
2923 | gt_timer_reset(env, ri, GTIMER_SEC); | |
2924 | } | |
2925 | ||
2926 | static void gt_sec_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2927 | uint64_t value) | |
2928 | { | |
2929 | gt_cval_write(env, ri, GTIMER_SEC, value); | |
2930 | } | |
2931 | ||
2932 | static uint64_t gt_sec_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2933 | { | |
2934 | return gt_tval_read(env, ri, GTIMER_SEC); | |
2935 | } | |
2936 | ||
2937 | static void gt_sec_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2938 | uint64_t value) | |
2939 | { | |
2940 | gt_tval_write(env, ri, GTIMER_SEC, value); | |
2941 | } | |
2942 | ||
2943 | static void gt_sec_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2944 | uint64_t value) | |
2945 | { | |
2946 | gt_ctl_write(env, ri, GTIMER_SEC, value); | |
2947 | } | |
2948 | ||
8c94b071 RH |
2949 | static void gt_hv_timer_reset(CPUARMState *env, const ARMCPRegInfo *ri) |
2950 | { | |
2951 | gt_timer_reset(env, ri, GTIMER_HYPVIRT); | |
2952 | } | |
2953 | ||
2954 | static void gt_hv_cval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2955 | uint64_t value) | |
2956 | { | |
2957 | gt_cval_write(env, ri, GTIMER_HYPVIRT, value); | |
2958 | } | |
2959 | ||
2960 | static uint64_t gt_hv_tval_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
2961 | { | |
2962 | return gt_tval_read(env, ri, GTIMER_HYPVIRT); | |
2963 | } | |
2964 | ||
2965 | static void gt_hv_tval_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2966 | uint64_t value) | |
2967 | { | |
2968 | gt_tval_write(env, ri, GTIMER_HYPVIRT, value); | |
2969 | } | |
2970 | ||
2971 | static void gt_hv_ctl_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
2972 | uint64_t value) | |
2973 | { | |
2974 | gt_ctl_write(env, ri, GTIMER_HYPVIRT, value); | |
2975 | } | |
2976 | ||
55d284af PM |
2977 | void arm_gt_ptimer_cb(void *opaque) |
2978 | { | |
2979 | ARMCPU *cpu = opaque; | |
2980 | ||
2981 | gt_recalc_timer(cpu, GTIMER_PHYS); | |
2982 | } | |
2983 | ||
2984 | void arm_gt_vtimer_cb(void *opaque) | |
2985 | { | |
2986 | ARMCPU *cpu = opaque; | |
2987 | ||
2988 | gt_recalc_timer(cpu, GTIMER_VIRT); | |
2989 | } | |
2990 | ||
b0e66d95 EI |
2991 | void arm_gt_htimer_cb(void *opaque) |
2992 | { | |
2993 | ARMCPU *cpu = opaque; | |
2994 | ||
2995 | gt_recalc_timer(cpu, GTIMER_HYP); | |
2996 | } | |
2997 | ||
b4d3978c PM |
2998 | void arm_gt_stimer_cb(void *opaque) |
2999 | { | |
3000 | ARMCPU *cpu = opaque; | |
3001 | ||
3002 | gt_recalc_timer(cpu, GTIMER_SEC); | |
3003 | } | |
3004 | ||
8c94b071 RH |
3005 | void arm_gt_hvtimer_cb(void *opaque) |
3006 | { | |
3007 | ARMCPU *cpu = opaque; | |
3008 | ||
3009 | gt_recalc_timer(cpu, GTIMER_HYPVIRT); | |
3010 | } | |
3011 | ||
96eec6b2 AJ |
3012 | static void arm_gt_cntfrq_reset(CPUARMState *env, const ARMCPRegInfo *opaque) |
3013 | { | |
3014 | ARMCPU *cpu = env_archcpu(env); | |
3015 | ||
3016 | cpu->env.cp15.c14_cntfrq = cpu->gt_cntfrq_hz; | |
3017 | } | |
3018 | ||
55d284af | 3019 | static const ARMCPRegInfo generic_timer_cp_reginfo[] = { |
9b37a28c FR |
3020 | /* |
3021 | * Note that CNTFRQ is purely reads-as-written for the benefit | |
55d284af PM |
3022 | * of software; writing it doesn't actually change the timer frequency. |
3023 | * Our reset value matches the fixed frequency we implement the timer at. | |
3024 | */ | |
3025 | { .name = "CNTFRQ", .cp = 15, .crn = 14, .crm = 0, .opc1 = 0, .opc2 = 0, | |
7a0e58fa | 3026 | .type = ARM_CP_ALIAS, |
a7adc4b7 PM |
3027 | .access = PL1_RW | PL0_R, .accessfn = gt_cntfrq_access, |
3028 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c14_cntfrq), | |
a7adc4b7 PM |
3029 | }, |
3030 | { .name = "CNTFRQ_EL0", .state = ARM_CP_STATE_AA64, | |
3031 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 0, | |
3032 | .access = PL1_RW | PL0_R, .accessfn = gt_cntfrq_access, | |
55d284af | 3033 | .fieldoffset = offsetof(CPUARMState, cp15.c14_cntfrq), |
96eec6b2 | 3034 | .resetfn = arm_gt_cntfrq_reset, |
55d284af PM |
3035 | }, |
3036 | /* overall control: mostly access permissions */ | |
a7adc4b7 PM |
3037 | { .name = "CNTKCTL", .state = ARM_CP_STATE_BOTH, |
3038 | .opc0 = 3, .opc1 = 0, .crn = 14, .crm = 1, .opc2 = 0, | |
55d284af PM |
3039 | .access = PL1_RW, |
3040 | .fieldoffset = offsetof(CPUARMState, cp15.c14_cntkctl), | |
3041 | .resetvalue = 0, | |
3042 | }, | |
3043 | /* per-timer control */ | |
3044 | { .name = "CNTP_CTL", .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 1, | |
9ff9dd3c | 3045 | .secure = ARM_CP_SECSTATE_NS, |
daf1dc5f | 3046 | .type = ARM_CP_IO | ARM_CP_ALIAS, .access = PL0_RW, |
a7adc4b7 PM |
3047 | .accessfn = gt_ptimer_access, |
3048 | .fieldoffset = offsetoflow32(CPUARMState, | |
3049 | cp15.c14_timer[GTIMER_PHYS].ctl), | |
bb5972e4 RH |
3050 | .readfn = gt_phys_redir_ctl_read, .raw_readfn = raw_read, |
3051 | .writefn = gt_phys_redir_ctl_write, .raw_writefn = raw_write, | |
a7adc4b7 | 3052 | }, |
9c513e78 | 3053 | { .name = "CNTP_CTL_S", |
9ff9dd3c PM |
3054 | .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 1, |
3055 | .secure = ARM_CP_SECSTATE_S, | |
daf1dc5f | 3056 | .type = ARM_CP_IO | ARM_CP_ALIAS, .access = PL0_RW, |
9ff9dd3c PM |
3057 | .accessfn = gt_ptimer_access, |
3058 | .fieldoffset = offsetoflow32(CPUARMState, | |
3059 | cp15.c14_timer[GTIMER_SEC].ctl), | |
3060 | .writefn = gt_sec_ctl_write, .raw_writefn = raw_write, | |
3061 | }, | |
a7adc4b7 PM |
3062 | { .name = "CNTP_CTL_EL0", .state = ARM_CP_STATE_AA64, |
3063 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 2, .opc2 = 1, | |
daf1dc5f | 3064 | .type = ARM_CP_IO, .access = PL0_RW, |
a7adc4b7 | 3065 | .accessfn = gt_ptimer_access, |
55d284af PM |
3066 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].ctl), |
3067 | .resetvalue = 0, | |
bb5972e4 RH |
3068 | .readfn = gt_phys_redir_ctl_read, .raw_readfn = raw_read, |
3069 | .writefn = gt_phys_redir_ctl_write, .raw_writefn = raw_write, | |
55d284af PM |
3070 | }, |
3071 | { .name = "CNTV_CTL", .cp = 15, .crn = 14, .crm = 3, .opc1 = 0, .opc2 = 1, | |
daf1dc5f | 3072 | .type = ARM_CP_IO | ARM_CP_ALIAS, .access = PL0_RW, |
a7adc4b7 PM |
3073 | .accessfn = gt_vtimer_access, |
3074 | .fieldoffset = offsetoflow32(CPUARMState, | |
3075 | cp15.c14_timer[GTIMER_VIRT].ctl), | |
bb5972e4 RH |
3076 | .readfn = gt_virt_redir_ctl_read, .raw_readfn = raw_read, |
3077 | .writefn = gt_virt_redir_ctl_write, .raw_writefn = raw_write, | |
a7adc4b7 PM |
3078 | }, |
3079 | { .name = "CNTV_CTL_EL0", .state = ARM_CP_STATE_AA64, | |
3080 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 3, .opc2 = 1, | |
daf1dc5f | 3081 | .type = ARM_CP_IO, .access = PL0_RW, |
a7adc4b7 | 3082 | .accessfn = gt_vtimer_access, |
55d284af PM |
3083 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].ctl), |
3084 | .resetvalue = 0, | |
bb5972e4 RH |
3085 | .readfn = gt_virt_redir_ctl_read, .raw_readfn = raw_read, |
3086 | .writefn = gt_virt_redir_ctl_write, .raw_writefn = raw_write, | |
55d284af PM |
3087 | }, |
3088 | /* TimerValue views: a 32 bit downcounting view of the underlying state */ | |
3089 | { .name = "CNTP_TVAL", .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 0, | |
9ff9dd3c | 3090 | .secure = ARM_CP_SECSTATE_NS, |
daf1dc5f | 3091 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
00108f2d | 3092 | .accessfn = gt_ptimer_access, |
bb5972e4 | 3093 | .readfn = gt_phys_redir_tval_read, .writefn = gt_phys_redir_tval_write, |
55d284af | 3094 | }, |
9c513e78 | 3095 | { .name = "CNTP_TVAL_S", |
9ff9dd3c PM |
3096 | .cp = 15, .crn = 14, .crm = 2, .opc1 = 0, .opc2 = 0, |
3097 | .secure = ARM_CP_SECSTATE_S, | |
daf1dc5f | 3098 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
9ff9dd3c PM |
3099 | .accessfn = gt_ptimer_access, |
3100 | .readfn = gt_sec_tval_read, .writefn = gt_sec_tval_write, | |
3101 | }, | |
a7adc4b7 PM |
3102 | { .name = "CNTP_TVAL_EL0", .state = ARM_CP_STATE_AA64, |
3103 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 2, .opc2 = 0, | |
daf1dc5f | 3104 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
0e3eca4c | 3105 | .accessfn = gt_ptimer_access, .resetfn = gt_phys_timer_reset, |
bb5972e4 | 3106 | .readfn = gt_phys_redir_tval_read, .writefn = gt_phys_redir_tval_write, |
a7adc4b7 | 3107 | }, |
55d284af | 3108 | { .name = "CNTV_TVAL", .cp = 15, .crn = 14, .crm = 3, .opc1 = 0, .opc2 = 0, |
daf1dc5f | 3109 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
00108f2d | 3110 | .accessfn = gt_vtimer_access, |
bb5972e4 | 3111 | .readfn = gt_virt_redir_tval_read, .writefn = gt_virt_redir_tval_write, |
55d284af | 3112 | }, |
a7adc4b7 PM |
3113 | { .name = "CNTV_TVAL_EL0", .state = ARM_CP_STATE_AA64, |
3114 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 3, .opc2 = 0, | |
daf1dc5f | 3115 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL0_RW, |
0e3eca4c | 3116 | .accessfn = gt_vtimer_access, .resetfn = gt_virt_timer_reset, |
bb5972e4 | 3117 | .readfn = gt_virt_redir_tval_read, .writefn = gt_virt_redir_tval_write, |
a7adc4b7 | 3118 | }, |
55d284af PM |
3119 | /* The counter itself */ |
3120 | { .name = "CNTPCT", .cp = 15, .crm = 14, .opc1 = 0, | |
7a0e58fa | 3121 | .access = PL0_R, .type = ARM_CP_64BIT | ARM_CP_NO_RAW | ARM_CP_IO, |
00108f2d | 3122 | .accessfn = gt_pct_access, |
a7adc4b7 PM |
3123 | .readfn = gt_cnt_read, .resetfn = arm_cp_reset_ignore, |
3124 | }, | |
3125 | { .name = "CNTPCT_EL0", .state = ARM_CP_STATE_AA64, | |
3126 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 1, | |
7a0e58fa | 3127 | .access = PL0_R, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
d57b9ee8 | 3128 | .accessfn = gt_pct_access, .readfn = gt_cnt_read, |
55d284af PM |
3129 | }, |
3130 | { .name = "CNTVCT", .cp = 15, .crm = 14, .opc1 = 1, | |
7a0e58fa | 3131 | .access = PL0_R, .type = ARM_CP_64BIT | ARM_CP_NO_RAW | ARM_CP_IO, |
00108f2d | 3132 | .accessfn = gt_vct_access, |
edac4d8a | 3133 | .readfn = gt_virt_cnt_read, .resetfn = arm_cp_reset_ignore, |
a7adc4b7 PM |
3134 | }, |
3135 | { .name = "CNTVCT_EL0", .state = ARM_CP_STATE_AA64, | |
3136 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 2, | |
7a0e58fa | 3137 | .access = PL0_R, .type = ARM_CP_NO_RAW | ARM_CP_IO, |
d57b9ee8 | 3138 | .accessfn = gt_vct_access, .readfn = gt_virt_cnt_read, |
55d284af PM |
3139 | }, |
3140 | /* Comparison value, indicating when the timer goes off */ | |
3141 | { .name = "CNTP_CVAL", .cp = 15, .crm = 14, .opc1 = 2, | |
9ff9dd3c | 3142 | .secure = ARM_CP_SECSTATE_NS, |
daf1dc5f | 3143 | .access = PL0_RW, |
7a0e58fa | 3144 | .type = ARM_CP_64BIT | ARM_CP_IO | ARM_CP_ALIAS, |
55d284af | 3145 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].cval), |
b061a82b | 3146 | .accessfn = gt_ptimer_access, |
bb5972e4 RH |
3147 | .readfn = gt_phys_redir_cval_read, .raw_readfn = raw_read, |
3148 | .writefn = gt_phys_redir_cval_write, .raw_writefn = raw_write, | |
a7adc4b7 | 3149 | }, |
9c513e78 | 3150 | { .name = "CNTP_CVAL_S", .cp = 15, .crm = 14, .opc1 = 2, |
9ff9dd3c | 3151 | .secure = ARM_CP_SECSTATE_S, |
daf1dc5f | 3152 | .access = PL0_RW, |
9ff9dd3c PM |
3153 | .type = ARM_CP_64BIT | ARM_CP_IO | ARM_CP_ALIAS, |
3154 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_SEC].cval), | |
3155 | .accessfn = gt_ptimer_access, | |
3156 | .writefn = gt_sec_cval_write, .raw_writefn = raw_write, | |
3157 | }, | |
a7adc4b7 PM |
3158 | { .name = "CNTP_CVAL_EL0", .state = ARM_CP_STATE_AA64, |
3159 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 2, .opc2 = 2, | |
daf1dc5f | 3160 | .access = PL0_RW, |
a7adc4b7 PM |
3161 | .type = ARM_CP_IO, |
3162 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].cval), | |
12cde08a | 3163 | .resetvalue = 0, .accessfn = gt_ptimer_access, |
bb5972e4 RH |
3164 | .readfn = gt_phys_redir_cval_read, .raw_readfn = raw_read, |
3165 | .writefn = gt_phys_redir_cval_write, .raw_writefn = raw_write, | |
55d284af PM |
3166 | }, |
3167 | { .name = "CNTV_CVAL", .cp = 15, .crm = 14, .opc1 = 3, | |
daf1dc5f | 3168 | .access = PL0_RW, |
7a0e58fa | 3169 | .type = ARM_CP_64BIT | ARM_CP_IO | ARM_CP_ALIAS, |
55d284af | 3170 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].cval), |
b061a82b | 3171 | .accessfn = gt_vtimer_access, |
bb5972e4 RH |
3172 | .readfn = gt_virt_redir_cval_read, .raw_readfn = raw_read, |
3173 | .writefn = gt_virt_redir_cval_write, .raw_writefn = raw_write, | |
a7adc4b7 PM |
3174 | }, |
3175 | { .name = "CNTV_CVAL_EL0", .state = ARM_CP_STATE_AA64, | |
3176 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 3, .opc2 = 2, | |
daf1dc5f | 3177 | .access = PL0_RW, |
a7adc4b7 PM |
3178 | .type = ARM_CP_IO, |
3179 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].cval), | |
3180 | .resetvalue = 0, .accessfn = gt_vtimer_access, | |
bb5972e4 RH |
3181 | .readfn = gt_virt_redir_cval_read, .raw_readfn = raw_read, |
3182 | .writefn = gt_virt_redir_cval_write, .raw_writefn = raw_write, | |
55d284af | 3183 | }, |
9b37a28c FR |
3184 | /* |
3185 | * Secure timer -- this is actually restricted to only EL3 | |
b4d3978c PM |
3186 | * and configurably Secure-EL1 via the accessfn. |
3187 | */ | |
3188 | { .name = "CNTPS_TVAL_EL1", .state = ARM_CP_STATE_AA64, | |
3189 | .opc0 = 3, .opc1 = 7, .crn = 14, .crm = 2, .opc2 = 0, | |
3190 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL1_RW, | |
3191 | .accessfn = gt_stimer_access, | |
3192 | .readfn = gt_sec_tval_read, | |
3193 | .writefn = gt_sec_tval_write, | |
3194 | .resetfn = gt_sec_timer_reset, | |
3195 | }, | |
3196 | { .name = "CNTPS_CTL_EL1", .state = ARM_CP_STATE_AA64, | |
3197 | .opc0 = 3, .opc1 = 7, .crn = 14, .crm = 2, .opc2 = 1, | |
3198 | .type = ARM_CP_IO, .access = PL1_RW, | |
3199 | .accessfn = gt_stimer_access, | |
3200 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_SEC].ctl), | |
3201 | .resetvalue = 0, | |
3202 | .writefn = gt_sec_ctl_write, .raw_writefn = raw_write, | |
3203 | }, | |
3204 | { .name = "CNTPS_CVAL_EL1", .state = ARM_CP_STATE_AA64, | |
3205 | .opc0 = 3, .opc1 = 7, .crn = 14, .crm = 2, .opc2 = 2, | |
3206 | .type = ARM_CP_IO, .access = PL1_RW, | |
3207 | .accessfn = gt_stimer_access, | |
3208 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_SEC].cval), | |
3209 | .writefn = gt_sec_cval_write, .raw_writefn = raw_write, | |
3210 | }, | |
55d284af PM |
3211 | }; |
3212 | ||
bb5972e4 RH |
3213 | static CPAccessResult e2h_access(CPUARMState *env, const ARMCPRegInfo *ri, |
3214 | bool isread) | |
3215 | { | |
3216 | if (!(arm_hcr_el2_eff(env) & HCR_E2H)) { | |
3217 | return CP_ACCESS_TRAP; | |
3218 | } | |
3219 | return CP_ACCESS_OK; | |
3220 | } | |
3221 | ||
55d284af | 3222 | #else |
26c4a83b | 3223 | |
9b37a28c FR |
3224 | /* |
3225 | * In user-mode most of the generic timer registers are inaccessible | |
26c4a83b | 3226 | * however modern kernels (4.12+) allow access to cntvct_el0 |
55d284af | 3227 | */ |
26c4a83b AB |
3228 | |
3229 | static uint64_t gt_virt_cnt_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3230 | { | |
7def8754 AJ |
3231 | ARMCPU *cpu = env_archcpu(env); |
3232 | ||
9b37a28c FR |
3233 | /* |
3234 | * Currently we have no support for QEMUTimer in linux-user so we | |
26c4a83b AB |
3235 | * can't call gt_get_countervalue(env), instead we directly |
3236 | * call the lower level functions. | |
3237 | */ | |
7def8754 | 3238 | return cpu_get_clock() / gt_cntfrq_period_ns(cpu); |
26c4a83b AB |
3239 | } |
3240 | ||
6cc7a3ae | 3241 | static const ARMCPRegInfo generic_timer_cp_reginfo[] = { |
26c4a83b AB |
3242 | { .name = "CNTFRQ_EL0", .state = ARM_CP_STATE_AA64, |
3243 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 0, | |
3244 | .type = ARM_CP_CONST, .access = PL0_R /* no PL1_RW in linux-user */, | |
3245 | .fieldoffset = offsetof(CPUARMState, cp15.c14_cntfrq), | |
3246 | .resetvalue = NANOSECONDS_PER_SECOND / GTIMER_SCALE, | |
3247 | }, | |
3248 | { .name = "CNTVCT_EL0", .state = ARM_CP_STATE_AA64, | |
3249 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 0, .opc2 = 2, | |
3250 | .access = PL0_R, .type = ARM_CP_NO_RAW | ARM_CP_IO, | |
3251 | .readfn = gt_virt_cnt_read, | |
3252 | }, | |
6cc7a3ae PM |
3253 | }; |
3254 | ||
55d284af PM |
3255 | #endif |
3256 | ||
c4241c7d | 3257 | static void par_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
4a501606 | 3258 | { |
891a2fe7 | 3259 | if (arm_feature(env, ARM_FEATURE_LPAE)) { |
8d5c773e | 3260 | raw_write(env, ri, value); |
891a2fe7 | 3261 | } else if (arm_feature(env, ARM_FEATURE_V7)) { |
8d5c773e | 3262 | raw_write(env, ri, value & 0xfffff6ff); |
4a501606 | 3263 | } else { |
8d5c773e | 3264 | raw_write(env, ri, value & 0xfffff1ff); |
4a501606 | 3265 | } |
4a501606 PM |
3266 | } |
3267 | ||
3268 | #ifndef CONFIG_USER_ONLY | |
3269 | /* get_phys_addr() isn't present for user-mode-only targets */ | |
702a9357 | 3270 | |
3f208fd7 PM |
3271 | static CPAccessResult ats_access(CPUARMState *env, const ARMCPRegInfo *ri, |
3272 | bool isread) | |
92611c00 PM |
3273 | { |
3274 | if (ri->opc2 & 4) { | |
9b37a28c FR |
3275 | /* |
3276 | * The ATS12NSO* operations must trap to EL3 or EL2 if executed in | |
87562e4f PM |
3277 | * Secure EL1 (which can only happen if EL3 is AArch64). |
3278 | * They are simply UNDEF if executed from NS EL1. | |
3279 | * They function normally from EL2 or EL3. | |
92611c00 | 3280 | */ |
87562e4f PM |
3281 | if (arm_current_el(env) == 1) { |
3282 | if (arm_is_secure_below_el3(env)) { | |
926c1b97 RDC |
3283 | if (env->cp15.scr_el3 & SCR_EEL2) { |
3284 | return CP_ACCESS_TRAP_UNCATEGORIZED_EL2; | |
3285 | } | |
87562e4f PM |
3286 | return CP_ACCESS_TRAP_UNCATEGORIZED_EL3; |
3287 | } | |
3288 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
3289 | } | |
92611c00 PM |
3290 | } |
3291 | return CP_ACCESS_OK; | |
3292 | } | |
3293 | ||
9fb005b0 | 3294 | #ifdef CONFIG_TCG |
060e8a48 | 3295 | static uint64_t do_ats_write(CPUARMState *env, uint64_t value, |
7aee3cb9 RH |
3296 | MMUAccessType access_type, ARMMMUIdx mmu_idx, |
3297 | bool is_secure) | |
4a501606 | 3298 | { |
b7cc4e82 | 3299 | bool ret; |
01c097f7 | 3300 | uint64_t par64; |
1313e2d7 | 3301 | bool format64 = false; |
e14b5a23 | 3302 | ARMMMUFaultInfo fi = {}; |
de05a709 | 3303 | GetPhysAddrResult res = {}; |
4a501606 | 3304 | |
7aee3cb9 RH |
3305 | ret = get_phys_addr_with_secure(env, value, access_type, mmu_idx, |
3306 | is_secure, &res, &fi); | |
1313e2d7 | 3307 | |
9f225e60 PM |
3308 | /* |
3309 | * ATS operations only do S1 or S1+S2 translations, so we never | |
3310 | * have to deal with the ARMCacheAttrs format for S2 only. | |
3311 | */ | |
de05a709 | 3312 | assert(!res.cacheattrs.is_s2_format); |
9f225e60 | 3313 | |
0710b2fa PM |
3314 | if (ret) { |
3315 | /* | |
3316 | * Some kinds of translation fault must cause exceptions rather | |
3317 | * than being reported in the PAR. | |
3318 | */ | |
3319 | int current_el = arm_current_el(env); | |
3320 | int target_el; | |
3321 | uint32_t syn, fsr, fsc; | |
3322 | bool take_exc = false; | |
3323 | ||
b1a10c86 | 3324 | if (fi.s1ptw && current_el == 1 |
fee7aa46 | 3325 | && arm_mmu_idx_is_stage1_of_2(mmu_idx)) { |
0710b2fa PM |
3326 | /* |
3327 | * Synchronous stage 2 fault on an access made as part of the | |
3328 | * translation table walk for AT S1E0* or AT S1E1* insn | |
3329 | * executed from NS EL1. If this is a synchronous external abort | |
3330 | * and SCR_EL3.EA == 1, then we take a synchronous external abort | |
3331 | * to EL3. Otherwise the fault is taken as an exception to EL2, | |
3332 | * and HPFAR_EL2 holds the faulting IPA. | |
3333 | */ | |
3334 | if (fi.type == ARMFault_SyncExternalOnWalk && | |
3335 | (env->cp15.scr_el3 & SCR_EA)) { | |
3336 | target_el = 3; | |
3337 | } else { | |
3338 | env->cp15.hpfar_el2 = extract64(fi.s2addr, 12, 47) << 4; | |
9861248f RDC |
3339 | if (arm_is_secure_below_el3(env) && fi.s1ns) { |
3340 | env->cp15.hpfar_el2 |= HPFAR_NS; | |
3341 | } | |
0710b2fa PM |
3342 | target_el = 2; |
3343 | } | |
3344 | take_exc = true; | |
3345 | } else if (fi.type == ARMFault_SyncExternalOnWalk) { | |
3346 | /* | |
3347 | * Synchronous external aborts during a translation table walk | |
3348 | * are taken as Data Abort exceptions. | |
3349 | */ | |
3350 | if (fi.stage2) { | |
3351 | if (current_el == 3) { | |
3352 | target_el = 3; | |
3353 | } else { | |
3354 | target_el = 2; | |
3355 | } | |
3356 | } else { | |
3357 | target_el = exception_target_el(env); | |
3358 | } | |
3359 | take_exc = true; | |
3360 | } | |
3361 | ||
3362 | if (take_exc) { | |
3363 | /* Construct FSR and FSC using same logic as arm_deliver_fault() */ | |
3364 | if (target_el == 2 || arm_el_is_aa64(env, target_el) || | |
3365 | arm_s1_regime_using_lpae_format(env, mmu_idx)) { | |
3366 | fsr = arm_fi_to_lfsc(&fi); | |
3367 | fsc = extract32(fsr, 0, 6); | |
3368 | } else { | |
3369 | fsr = arm_fi_to_sfsc(&fi); | |
3370 | fsc = 0x3f; | |
3371 | } | |
3372 | /* | |
3373 | * Report exception with ESR indicating a fault due to a | |
3374 | * translation table walk for a cache maintenance instruction. | |
3375 | */ | |
e24fd076 | 3376 | syn = syn_data_abort_no_iss(current_el == target_el, 0, |
0710b2fa PM |
3377 | fi.ea, 1, fi.s1ptw, 1, fsc); |
3378 | env->exception.vaddress = value; | |
3379 | env->exception.fsr = fsr; | |
3380 | raise_exception(env, EXCP_DATA_ABORT, syn, target_el); | |
3381 | } | |
3382 | } | |
3383 | ||
1313e2d7 EI |
3384 | if (is_a64(env)) { |
3385 | format64 = true; | |
3386 | } else if (arm_feature(env, ARM_FEATURE_LPAE)) { | |
3387 | /* | |
3388 | * ATS1Cxx: | |
3389 | * * TTBCR.EAE determines whether the result is returned using the | |
3390 | * 32-bit or the 64-bit PAR format | |
3391 | * * Instructions executed in Hyp mode always use the 64bit format | |
3392 | * | |
3393 | * ATS1S2NSOxx uses the 64bit format if any of the following is true: | |
3394 | * * The Non-secure TTBCR.EAE bit is set to 1 | |
3395 | * * The implementation includes EL2, and the value of HCR.VM is 1 | |
3396 | * | |
9d1bab33 PM |
3397 | * (Note that HCR.DC makes HCR.VM behave as if it is 1.) |
3398 | * | |
23463e0e | 3399 | * ATS1Hx always uses the 64bit format. |
1313e2d7 EI |
3400 | */ |
3401 | format64 = arm_s1_regime_using_lpae_format(env, mmu_idx); | |
3402 | ||
3403 | if (arm_feature(env, ARM_FEATURE_EL2)) { | |
452ef8cb RH |
3404 | if (mmu_idx == ARMMMUIdx_E10_0 || |
3405 | mmu_idx == ARMMMUIdx_E10_1 || | |
3406 | mmu_idx == ARMMMUIdx_E10_1_PAN) { | |
9d1bab33 | 3407 | format64 |= env->cp15.hcr_el2 & (HCR_VM | HCR_DC); |
1313e2d7 EI |
3408 | } else { |
3409 | format64 |= arm_current_el(env) == 2; | |
3410 | } | |
3411 | } | |
3412 | } | |
3413 | ||
3414 | if (format64) { | |
5efe9ed4 | 3415 | /* Create a 64-bit PAR */ |
01c097f7 | 3416 | par64 = (1 << 11); /* LPAE bit always set */ |
b7cc4e82 | 3417 | if (!ret) { |
7fa7ea8f RH |
3418 | par64 |= res.f.phys_addr & ~0xfffULL; |
3419 | if (!res.f.attrs.secure) { | |
8bf5b6a9 PM |
3420 | par64 |= (1 << 9); /* NS */ |
3421 | } | |
de05a709 RH |
3422 | par64 |= (uint64_t)res.cacheattrs.attrs << 56; /* ATTR */ |
3423 | par64 |= res.cacheattrs.shareability << 7; /* SH */ | |
4a501606 | 3424 | } else { |
5efe9ed4 PM |
3425 | uint32_t fsr = arm_fi_to_lfsc(&fi); |
3426 | ||
702a9357 | 3427 | par64 |= 1; /* F */ |
b7cc4e82 | 3428 | par64 |= (fsr & 0x3f) << 1; /* FS */ |
0f7b791b PM |
3429 | if (fi.stage2) { |
3430 | par64 |= (1 << 9); /* S */ | |
3431 | } | |
3432 | if (fi.s1ptw) { | |
3433 | par64 |= (1 << 8); /* PTW */ | |
3434 | } | |
4a501606 PM |
3435 | } |
3436 | } else { | |
9b37a28c FR |
3437 | /* |
3438 | * fsr is a DFSR/IFSR value for the short descriptor | |
702a9357 PM |
3439 | * translation table format (with WnR always clear). |
3440 | * Convert it to a 32-bit PAR. | |
3441 | */ | |
b7cc4e82 | 3442 | if (!ret) { |
702a9357 | 3443 | /* We do not set any attribute bits in the PAR */ |
7fa7ea8f | 3444 | if (res.f.lg_page_size == 24 |
702a9357 | 3445 | && arm_feature(env, ARM_FEATURE_V7)) { |
7fa7ea8f | 3446 | par64 = (res.f.phys_addr & 0xff000000) | (1 << 1); |
702a9357 | 3447 | } else { |
7fa7ea8f | 3448 | par64 = res.f.phys_addr & 0xfffff000; |
702a9357 | 3449 | } |
7fa7ea8f | 3450 | if (!res.f.attrs.secure) { |
8bf5b6a9 PM |
3451 | par64 |= (1 << 9); /* NS */ |
3452 | } | |
702a9357 | 3453 | } else { |
5efe9ed4 PM |
3454 | uint32_t fsr = arm_fi_to_sfsc(&fi); |
3455 | ||
b7cc4e82 PC |
3456 | par64 = ((fsr & (1 << 10)) >> 5) | ((fsr & (1 << 12)) >> 6) | |
3457 | ((fsr & 0xf) << 1) | 1; | |
702a9357 | 3458 | } |
4a501606 | 3459 | } |
060e8a48 PM |
3460 | return par64; |
3461 | } | |
9fb005b0 | 3462 | #endif /* CONFIG_TCG */ |
060e8a48 PM |
3463 | |
3464 | static void ats_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) | |
3465 | { | |
9fb005b0 | 3466 | #ifdef CONFIG_TCG |
03ae85f8 | 3467 | MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD; |
060e8a48 | 3468 | uint64_t par64; |
d3649702 PM |
3469 | ARMMMUIdx mmu_idx; |
3470 | int el = arm_current_el(env); | |
3471 | bool secure = arm_is_secure_below_el3(env); | |
060e8a48 | 3472 | |
d3649702 PM |
3473 | switch (ri->opc2 & 6) { |
3474 | case 0: | |
04b07d29 | 3475 | /* stage 1 current state PL1: ATS1CPR, ATS1CPW, ATS1CPRP, ATS1CPWP */ |
d3649702 PM |
3476 | switch (el) { |
3477 | case 3: | |
d902ae75 | 3478 | mmu_idx = ARMMMUIdx_E3; |
7aee3cb9 | 3479 | secure = true; |
d3649702 PM |
3480 | break; |
3481 | case 2: | |
b6ad6062 | 3482 | g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */ |
04b07d29 | 3483 | /* fall through */ |
d3649702 | 3484 | case 1: |
04b07d29 | 3485 | if (ri->crm == 9 && (env->uncached_cpsr & CPSR_PAN)) { |
d902ae75 | 3486 | mmu_idx = ARMMMUIdx_Stage1_E1_PAN; |
04b07d29 | 3487 | } else { |
d902ae75 | 3488 | mmu_idx = ARMMMUIdx_Stage1_E1; |
04b07d29 | 3489 | } |
d3649702 PM |
3490 | break; |
3491 | default: | |
3492 | g_assert_not_reached(); | |
3493 | } | |
3494 | break; | |
3495 | case 2: | |
3496 | /* stage 1 current state PL0: ATS1CUR, ATS1CUW */ | |
3497 | switch (el) { | |
3498 | case 3: | |
d902ae75 | 3499 | mmu_idx = ARMMMUIdx_E10_0; |
7aee3cb9 | 3500 | secure = true; |
d3649702 PM |
3501 | break; |
3502 | case 2: | |
b1a10c86 | 3503 | g_assert(!secure); /* ARMv8.4-SecEL2 is 64-bit only */ |
2859d7b5 | 3504 | mmu_idx = ARMMMUIdx_Stage1_E0; |
d3649702 PM |
3505 | break; |
3506 | case 1: | |
d902ae75 | 3507 | mmu_idx = ARMMMUIdx_Stage1_E0; |
d3649702 PM |
3508 | break; |
3509 | default: | |
3510 | g_assert_not_reached(); | |
3511 | } | |
3512 | break; | |
3513 | case 4: | |
3514 | /* stage 1+2 NonSecure PL1: ATS12NSOPR, ATS12NSOPW */ | |
01b98b68 | 3515 | mmu_idx = ARMMMUIdx_E10_1; |
7aee3cb9 | 3516 | secure = false; |
d3649702 PM |
3517 | break; |
3518 | case 6: | |
3519 | /* stage 1+2 NonSecure PL0: ATS12NSOUR, ATS12NSOUW */ | |
01b98b68 | 3520 | mmu_idx = ARMMMUIdx_E10_0; |
7aee3cb9 | 3521 | secure = false; |
d3649702 PM |
3522 | break; |
3523 | default: | |
3524 | g_assert_not_reached(); | |
3525 | } | |
3526 | ||
7aee3cb9 | 3527 | par64 = do_ats_write(env, value, access_type, mmu_idx, secure); |
01c097f7 FA |
3528 | |
3529 | A32_BANKED_CURRENT_REG_SET(env, par, par64); | |
9fb005b0 PMD |
3530 | #else |
3531 | /* Handled by hardware accelerator. */ | |
3532 | g_assert_not_reached(); | |
3533 | #endif /* CONFIG_TCG */ | |
4a501606 | 3534 | } |
060e8a48 | 3535 | |
14db7fe0 PM |
3536 | static void ats1h_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3537 | uint64_t value) | |
3538 | { | |
9fb005b0 | 3539 | #ifdef CONFIG_TCG |
03ae85f8 | 3540 | MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD; |
14db7fe0 PM |
3541 | uint64_t par64; |
3542 | ||
7aee3cb9 RH |
3543 | /* There is no SecureEL2 for AArch32. */ |
3544 | par64 = do_ats_write(env, value, access_type, ARMMMUIdx_E2, false); | |
14db7fe0 PM |
3545 | |
3546 | A32_BANKED_CURRENT_REG_SET(env, par, par64); | |
9fb005b0 PMD |
3547 | #else |
3548 | /* Handled by hardware accelerator. */ | |
3549 | g_assert_not_reached(); | |
3550 | #endif /* CONFIG_TCG */ | |
14db7fe0 PM |
3551 | } |
3552 | ||
3f208fd7 PM |
3553 | static CPAccessResult at_s1e2_access(CPUARMState *env, const ARMCPRegInfo *ri, |
3554 | bool isread) | |
2a47df95 | 3555 | { |
926c1b97 RDC |
3556 | if (arm_current_el(env) == 3 && |
3557 | !(env->cp15.scr_el3 & (SCR_NS | SCR_EEL2))) { | |
2a47df95 PM |
3558 | return CP_ACCESS_TRAP; |
3559 | } | |
3560 | return CP_ACCESS_OK; | |
3561 | } | |
3562 | ||
060e8a48 PM |
3563 | static void ats_write64(CPUARMState *env, const ARMCPRegInfo *ri, |
3564 | uint64_t value) | |
3565 | { | |
9fb005b0 | 3566 | #ifdef CONFIG_TCG |
03ae85f8 | 3567 | MMUAccessType access_type = ri->opc2 & 1 ? MMU_DATA_STORE : MMU_DATA_LOAD; |
d3649702 PM |
3568 | ARMMMUIdx mmu_idx; |
3569 | int secure = arm_is_secure_below_el3(env); | |
638d5dbd AK |
3570 | uint64_t hcr_el2 = arm_hcr_el2_eff(env); |
3571 | bool regime_e20 = (hcr_el2 & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE); | |
d3649702 PM |
3572 | |
3573 | switch (ri->opc2 & 6) { | |
3574 | case 0: | |
3575 | switch (ri->opc1) { | |
04b07d29 RH |
3576 | case 0: /* AT S1E1R, AT S1E1W, AT S1E1RP, AT S1E1WP */ |
3577 | if (ri->crm == 9 && (env->pstate & PSTATE_PAN)) { | |
638d5dbd AK |
3578 | mmu_idx = regime_e20 ? |
3579 | ARMMMUIdx_E20_2_PAN : ARMMMUIdx_Stage1_E1_PAN; | |
04b07d29 | 3580 | } else { |
638d5dbd | 3581 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_2 : ARMMMUIdx_Stage1_E1; |
04b07d29 | 3582 | } |
d3649702 PM |
3583 | break; |
3584 | case 4: /* AT S1E2R, AT S1E2W */ | |
638d5dbd | 3585 | mmu_idx = hcr_el2 & HCR_E2H ? ARMMMUIdx_E20_2 : ARMMMUIdx_E2; |
d3649702 PM |
3586 | break; |
3587 | case 6: /* AT S1E3R, AT S1E3W */ | |
d902ae75 | 3588 | mmu_idx = ARMMMUIdx_E3; |
7aee3cb9 | 3589 | secure = true; |
d3649702 PM |
3590 | break; |
3591 | default: | |
3592 | g_assert_not_reached(); | |
3593 | } | |
3594 | break; | |
3595 | case 2: /* AT S1E0R, AT S1E0W */ | |
638d5dbd | 3596 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_0 : ARMMMUIdx_Stage1_E0; |
d3649702 PM |
3597 | break; |
3598 | case 4: /* AT S12E1R, AT S12E1W */ | |
638d5dbd | 3599 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_2 : ARMMMUIdx_E10_1; |
d3649702 PM |
3600 | break; |
3601 | case 6: /* AT S12E0R, AT S12E0W */ | |
638d5dbd | 3602 | mmu_idx = regime_e20 ? ARMMMUIdx_E20_0 : ARMMMUIdx_E10_0; |
d3649702 PM |
3603 | break; |
3604 | default: | |
3605 | g_assert_not_reached(); | |
3606 | } | |
060e8a48 | 3607 | |
7aee3cb9 RH |
3608 | env->cp15.par_el[1] = do_ats_write(env, value, access_type, |
3609 | mmu_idx, secure); | |
9fb005b0 PMD |
3610 | #else |
3611 | /* Handled by hardware accelerator. */ | |
3612 | g_assert_not_reached(); | |
3613 | #endif /* CONFIG_TCG */ | |
060e8a48 | 3614 | } |
4a501606 PM |
3615 | #endif |
3616 | ||
3617 | static const ARMCPRegInfo vapa_cp_reginfo[] = { | |
3618 | { .name = "PAR", .cp = 15, .crn = 7, .crm = 4, .opc1 = 0, .opc2 = 0, | |
3619 | .access = PL1_RW, .resetvalue = 0, | |
01c097f7 FA |
3620 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.par_s), |
3621 | offsetoflow32(CPUARMState, cp15.par_ns) }, | |
4a501606 PM |
3622 | .writefn = par_write }, |
3623 | #ifndef CONFIG_USER_ONLY | |
87562e4f | 3624 | /* This underdecoding is safe because the reginfo is NO_RAW. */ |
4a501606 | 3625 | { .name = "ATS", .cp = 15, .crn = 7, .crm = 8, .opc1 = 0, .opc2 = CP_ANY, |
92611c00 | 3626 | .access = PL1_W, .accessfn = ats_access, |
0710b2fa | 3627 | .writefn = ats_write, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC }, |
4a501606 | 3628 | #endif |
4a501606 PM |
3629 | }; |
3630 | ||
18032bec PM |
3631 | /* Return basic MPU access permission bits. */ |
3632 | static uint32_t simple_mpu_ap_bits(uint32_t val) | |
3633 | { | |
3634 | uint32_t ret; | |
3635 | uint32_t mask; | |
3636 | int i; | |
3637 | ret = 0; | |
3638 | mask = 3; | |
3639 | for (i = 0; i < 16; i += 2) { | |
3640 | ret |= (val >> i) & mask; | |
3641 | mask <<= 2; | |
3642 | } | |
3643 | return ret; | |
3644 | } | |
3645 | ||
3646 | /* Pad basic MPU access permission bits to extended format. */ | |
3647 | static uint32_t extended_mpu_ap_bits(uint32_t val) | |
3648 | { | |
3649 | uint32_t ret; | |
3650 | uint32_t mask; | |
3651 | int i; | |
3652 | ret = 0; | |
3653 | mask = 3; | |
3654 | for (i = 0; i < 16; i += 2) { | |
3655 | ret |= (val & mask) << i; | |
3656 | mask <<= 2; | |
3657 | } | |
3658 | return ret; | |
3659 | } | |
3660 | ||
c4241c7d PM |
3661 | static void pmsav5_data_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3662 | uint64_t value) | |
18032bec | 3663 | { |
7e09797c | 3664 | env->cp15.pmsav5_data_ap = extended_mpu_ap_bits(value); |
18032bec PM |
3665 | } |
3666 | ||
c4241c7d | 3667 | static uint64_t pmsav5_data_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) |
18032bec | 3668 | { |
7e09797c | 3669 | return simple_mpu_ap_bits(env->cp15.pmsav5_data_ap); |
18032bec PM |
3670 | } |
3671 | ||
c4241c7d PM |
3672 | static void pmsav5_insn_ap_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3673 | uint64_t value) | |
18032bec | 3674 | { |
7e09797c | 3675 | env->cp15.pmsav5_insn_ap = extended_mpu_ap_bits(value); |
18032bec PM |
3676 | } |
3677 | ||
c4241c7d | 3678 | static uint64_t pmsav5_insn_ap_read(CPUARMState *env, const ARMCPRegInfo *ri) |
18032bec | 3679 | { |
7e09797c | 3680 | return simple_mpu_ap_bits(env->cp15.pmsav5_insn_ap); |
18032bec PM |
3681 | } |
3682 | ||
6cb0b013 PC |
3683 | static uint64_t pmsav7_read(CPUARMState *env, const ARMCPRegInfo *ri) |
3684 | { | |
3685 | uint32_t *u32p = *(uint32_t **)raw_ptr(env, ri); | |
3686 | ||
3687 | if (!u32p) { | |
3688 | return 0; | |
3689 | } | |
3690 | ||
1bc04a88 | 3691 | u32p += env->pmsav7.rnr[M_REG_NS]; |
6cb0b013 PC |
3692 | return *u32p; |
3693 | } | |
3694 | ||
3695 | static void pmsav7_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3696 | uint64_t value) | |
3697 | { | |
2fc0cc0e | 3698 | ARMCPU *cpu = env_archcpu(env); |
6cb0b013 PC |
3699 | uint32_t *u32p = *(uint32_t **)raw_ptr(env, ri); |
3700 | ||
3701 | if (!u32p) { | |
3702 | return; | |
3703 | } | |
3704 | ||
1bc04a88 | 3705 | u32p += env->pmsav7.rnr[M_REG_NS]; |
d10eb08f | 3706 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ |
6cb0b013 PC |
3707 | *u32p = value; |
3708 | } | |
3709 | ||
6cb0b013 PC |
3710 | static void pmsav7_rgnr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3711 | uint64_t value) | |
3712 | { | |
2fc0cc0e | 3713 | ARMCPU *cpu = env_archcpu(env); |
6cb0b013 PC |
3714 | uint32_t nrgs = cpu->pmsav7_dregion; |
3715 | ||
3716 | if (value >= nrgs) { | |
3717 | qemu_log_mask(LOG_GUEST_ERROR, | |
3718 | "PMSAv7 RGNR write >= # supported regions, %" PRIu32 | |
3719 | " > %" PRIu32 "\n", (uint32_t)value, nrgs); | |
3720 | return; | |
3721 | } | |
3722 | ||
3723 | raw_write(env, ri, value); | |
3724 | } | |
3725 | ||
761c4642 TR |
3726 | static void prbar_write(CPUARMState *env, const ARMCPRegInfo *ri, |
3727 | uint64_t value) | |
3728 | { | |
3729 | ARMCPU *cpu = env_archcpu(env); | |
3730 | ||
3731 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3732 | env->pmsav8.rbar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]] = value; | |
3733 | } | |
3734 | ||
3735 | static uint64_t prbar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3736 | { | |
3737 | return env->pmsav8.rbar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]]; | |
3738 | } | |
3739 | ||
3740 | static void prlar_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3741 | uint64_t value) | |
3742 | { | |
3743 | ARMCPU *cpu = env_archcpu(env); | |
3744 | ||
3745 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3746 | env->pmsav8.rlar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]] = value; | |
3747 | } | |
3748 | ||
3749 | static uint64_t prlar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3750 | { | |
3751 | return env->pmsav8.rlar[M_REG_NS][env->pmsav7.rnr[M_REG_NS]]; | |
3752 | } | |
3753 | ||
3754 | static void prselr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3755 | uint64_t value) | |
3756 | { | |
3757 | ARMCPU *cpu = env_archcpu(env); | |
3758 | ||
3759 | /* | |
3760 | * Ignore writes that would select not implemented region. | |
3761 | * This is architecturally UNPREDICTABLE. | |
3762 | */ | |
3763 | if (value >= cpu->pmsav7_dregion) { | |
3764 | return; | |
3765 | } | |
3766 | ||
3767 | env->pmsav7.rnr[M_REG_NS] = value; | |
3768 | } | |
3769 | ||
3770 | static void hprbar_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3771 | uint64_t value) | |
3772 | { | |
3773 | ARMCPU *cpu = env_archcpu(env); | |
3774 | ||
3775 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3776 | env->pmsav8.hprbar[env->pmsav8.hprselr] = value; | |
3777 | } | |
3778 | ||
3779 | static uint64_t hprbar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3780 | { | |
3781 | return env->pmsav8.hprbar[env->pmsav8.hprselr]; | |
3782 | } | |
3783 | ||
3784 | static void hprlar_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3785 | uint64_t value) | |
3786 | { | |
3787 | ARMCPU *cpu = env_archcpu(env); | |
3788 | ||
3789 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3790 | env->pmsav8.hprlar[env->pmsav8.hprselr] = value; | |
3791 | } | |
3792 | ||
3793 | static uint64_t hprlar_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3794 | { | |
3795 | return env->pmsav8.hprlar[env->pmsav8.hprselr]; | |
3796 | } | |
3797 | ||
3798 | static void hprenr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3799 | uint64_t value) | |
3800 | { | |
3801 | uint32_t n; | |
3802 | uint32_t bit; | |
3803 | ARMCPU *cpu = env_archcpu(env); | |
3804 | ||
3805 | /* Ignore writes to unimplemented regions */ | |
3806 | int rmax = MIN(cpu->pmsav8r_hdregion, 32); | |
3807 | value &= MAKE_64BIT_MASK(0, rmax); | |
3808 | ||
3809 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3810 | ||
3811 | /* Register alias is only valid for first 32 indexes */ | |
3812 | for (n = 0; n < rmax; ++n) { | |
3813 | bit = extract32(value, n, 1); | |
3814 | env->pmsav8.hprlar[n] = deposit32( | |
3815 | env->pmsav8.hprlar[n], 0, 1, bit); | |
3816 | } | |
3817 | } | |
3818 | ||
3819 | static uint64_t hprenr_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3820 | { | |
3821 | uint32_t n; | |
3822 | uint32_t result = 0x0; | |
3823 | ARMCPU *cpu = env_archcpu(env); | |
3824 | ||
3825 | /* Register alias is only valid for first 32 indexes */ | |
3826 | for (n = 0; n < MIN(cpu->pmsav8r_hdregion, 32); ++n) { | |
3827 | if (env->pmsav8.hprlar[n] & 0x1) { | |
3828 | result |= (0x1 << n); | |
3829 | } | |
3830 | } | |
3831 | return result; | |
3832 | } | |
3833 | ||
3834 | static void hprselr_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3835 | uint64_t value) | |
3836 | { | |
3837 | ARMCPU *cpu = env_archcpu(env); | |
3838 | ||
3839 | /* | |
3840 | * Ignore writes that would select not implemented region. | |
3841 | * This is architecturally UNPREDICTABLE. | |
3842 | */ | |
3843 | if (value >= cpu->pmsav8r_hdregion) { | |
3844 | return; | |
3845 | } | |
3846 | ||
3847 | env->pmsav8.hprselr = value; | |
3848 | } | |
3849 | ||
3850 | static void pmsav8r_regn_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
3851 | uint64_t value) | |
3852 | { | |
3853 | ARMCPU *cpu = env_archcpu(env); | |
3854 | uint8_t index = (extract32(ri->opc0, 0, 1) << 4) | | |
3855 | (extract32(ri->crm, 0, 3) << 1) | extract32(ri->opc2, 2, 1); | |
3856 | ||
3857 | tlb_flush(CPU(cpu)); /* Mappings may have changed - purge! */ | |
3858 | ||
3859 | if (ri->opc1 & 4) { | |
3860 | if (index >= cpu->pmsav8r_hdregion) { | |
3861 | return; | |
3862 | } | |
3863 | if (ri->opc2 & 0x1) { | |
3864 | env->pmsav8.hprlar[index] = value; | |
3865 | } else { | |
3866 | env->pmsav8.hprbar[index] = value; | |
3867 | } | |
3868 | } else { | |
3869 | if (index >= cpu->pmsav7_dregion) { | |
3870 | return; | |
3871 | } | |
3872 | if (ri->opc2 & 0x1) { | |
3873 | env->pmsav8.rlar[M_REG_NS][index] = value; | |
3874 | } else { | |
3875 | env->pmsav8.rbar[M_REG_NS][index] = value; | |
3876 | } | |
3877 | } | |
3878 | } | |
3879 | ||
3880 | static uint64_t pmsav8r_regn_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
3881 | { | |
3882 | ARMCPU *cpu = env_archcpu(env); | |
3883 | uint8_t index = (extract32(ri->opc0, 0, 1) << 4) | | |
3884 | (extract32(ri->crm, 0, 3) << 1) | extract32(ri->opc2, 2, 1); | |
3885 | ||
3886 | if (ri->opc1 & 4) { | |
3887 | if (index >= cpu->pmsav8r_hdregion) { | |
3888 | return 0x0; | |
3889 | } | |
3890 | if (ri->opc2 & 0x1) { | |
3891 | return env->pmsav8.hprlar[index]; | |
3892 | } else { | |
3893 | return env->pmsav8.hprbar[index]; | |
3894 | } | |
3895 | } else { | |
3896 | if (index >= cpu->pmsav7_dregion) { | |
3897 | return 0x0; | |
3898 | } | |
3899 | if (ri->opc2 & 0x1) { | |
3900 | return env->pmsav8.rlar[M_REG_NS][index]; | |
3901 | } else { | |
3902 | return env->pmsav8.rbar[M_REG_NS][index]; | |
3903 | } | |
3904 | } | |
3905 | } | |
3906 | ||
3907 | static const ARMCPRegInfo pmsav8r_cp_reginfo[] = { | |
3908 | { .name = "PRBAR", | |
3909 | .cp = 15, .opc1 = 0, .crn = 6, .crm = 3, .opc2 = 0, | |
3910 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3911 | .accessfn = access_tvm_trvm, | |
3912 | .readfn = prbar_read, .writefn = prbar_write }, | |
3913 | { .name = "PRLAR", | |
3914 | .cp = 15, .opc1 = 0, .crn = 6, .crm = 3, .opc2 = 1, | |
3915 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3916 | .accessfn = access_tvm_trvm, | |
3917 | .readfn = prlar_read, .writefn = prlar_write }, | |
3918 | { .name = "PRSELR", .resetvalue = 0, | |
3919 | .cp = 15, .opc1 = 0, .crn = 6, .crm = 2, .opc2 = 1, | |
3920 | .access = PL1_RW, .accessfn = access_tvm_trvm, | |
3921 | .writefn = prselr_write, | |
3922 | .fieldoffset = offsetof(CPUARMState, pmsav7.rnr[M_REG_NS]) }, | |
3923 | { .name = "HPRBAR", .resetvalue = 0, | |
3924 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 3, .opc2 = 0, | |
3925 | .access = PL2_RW, .type = ARM_CP_NO_RAW, | |
3926 | .readfn = hprbar_read, .writefn = hprbar_write }, | |
3927 | { .name = "HPRLAR", | |
3928 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 3, .opc2 = 1, | |
3929 | .access = PL2_RW, .type = ARM_CP_NO_RAW, | |
3930 | .readfn = hprlar_read, .writefn = hprlar_write }, | |
3931 | { .name = "HPRSELR", .resetvalue = 0, | |
3932 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 2, .opc2 = 1, | |
3933 | .access = PL2_RW, | |
3934 | .writefn = hprselr_write, | |
3935 | .fieldoffset = offsetof(CPUARMState, pmsav8.hprselr) }, | |
3936 | { .name = "HPRENR", | |
3937 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 1, .opc2 = 1, | |
3938 | .access = PL2_RW, .type = ARM_CP_NO_RAW, | |
3939 | .readfn = hprenr_read, .writefn = hprenr_write }, | |
3940 | }; | |
3941 | ||
6cb0b013 | 3942 | static const ARMCPRegInfo pmsav7_cp_reginfo[] = { |
9b37a28c FR |
3943 | /* |
3944 | * Reset for all these registers is handled in arm_cpu_reset(), | |
69ceea64 PM |
3945 | * because the PMSAv7 is also used by M-profile CPUs, which do |
3946 | * not register cpregs but still need the state to be reset. | |
3947 | */ | |
6cb0b013 PC |
3948 | { .name = "DRBAR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 1, .opc2 = 0, |
3949 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3950 | .fieldoffset = offsetof(CPUARMState, pmsav7.drbar), | |
69ceea64 PM |
3951 | .readfn = pmsav7_read, .writefn = pmsav7_write, |
3952 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3953 | { .name = "DRSR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 1, .opc2 = 2, |
3954 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3955 | .fieldoffset = offsetof(CPUARMState, pmsav7.drsr), | |
69ceea64 PM |
3956 | .readfn = pmsav7_read, .writefn = pmsav7_write, |
3957 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3958 | { .name = "DRACR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 1, .opc2 = 4, |
3959 | .access = PL1_RW, .type = ARM_CP_NO_RAW, | |
3960 | .fieldoffset = offsetof(CPUARMState, pmsav7.dracr), | |
69ceea64 PM |
3961 | .readfn = pmsav7_read, .writefn = pmsav7_write, |
3962 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3963 | { .name = "RGNR", .cp = 15, .crn = 6, .opc1 = 0, .crm = 2, .opc2 = 0, |
3964 | .access = PL1_RW, | |
1bc04a88 | 3965 | .fieldoffset = offsetof(CPUARMState, pmsav7.rnr[M_REG_NS]), |
69ceea64 PM |
3966 | .writefn = pmsav7_rgnr_write, |
3967 | .resetfn = arm_cp_reset_ignore }, | |
6cb0b013 PC |
3968 | }; |
3969 | ||
18032bec PM |
3970 | static const ARMCPRegInfo pmsav5_cp_reginfo[] = { |
3971 | { .name = "DATA_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 0, | |
7a0e58fa | 3972 | .access = PL1_RW, .type = ARM_CP_ALIAS, |
7e09797c | 3973 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_data_ap), |
18032bec PM |
3974 | .readfn = pmsav5_data_ap_read, .writefn = pmsav5_data_ap_write, }, |
3975 | { .name = "INSN_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 1, | |
7a0e58fa | 3976 | .access = PL1_RW, .type = ARM_CP_ALIAS, |
7e09797c | 3977 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_insn_ap), |
18032bec PM |
3978 | .readfn = pmsav5_insn_ap_read, .writefn = pmsav5_insn_ap_write, }, |
3979 | { .name = "DATA_EXT_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 2, | |
3980 | .access = PL1_RW, | |
7e09797c PM |
3981 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_data_ap), |
3982 | .resetvalue = 0, }, | |
18032bec PM |
3983 | { .name = "INSN_EXT_AP", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 3, |
3984 | .access = PL1_RW, | |
7e09797c PM |
3985 | .fieldoffset = offsetof(CPUARMState, cp15.pmsav5_insn_ap), |
3986 | .resetvalue = 0, }, | |
ecce5c3c PM |
3987 | { .name = "DCACHE_CFG", .cp = 15, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 0, |
3988 | .access = PL1_RW, | |
3989 | .fieldoffset = offsetof(CPUARMState, cp15.c2_data), .resetvalue = 0, }, | |
3990 | { .name = "ICACHE_CFG", .cp = 15, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 1, | |
3991 | .access = PL1_RW, | |
3992 | .fieldoffset = offsetof(CPUARMState, cp15.c2_insn), .resetvalue = 0, }, | |
06d76f31 | 3993 | /* Protection region base and size registers */ |
e508a92b PM |
3994 | { .name = "946_PRBS0", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, |
3995 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
3996 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[0]) }, | |
3997 | { .name = "946_PRBS1", .cp = 15, .crn = 6, .crm = 1, .opc1 = 0, | |
3998 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
3999 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[1]) }, | |
4000 | { .name = "946_PRBS2", .cp = 15, .crn = 6, .crm = 2, .opc1 = 0, | |
4001 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4002 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[2]) }, | |
4003 | { .name = "946_PRBS3", .cp = 15, .crn = 6, .crm = 3, .opc1 = 0, | |
4004 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4005 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[3]) }, | |
4006 | { .name = "946_PRBS4", .cp = 15, .crn = 6, .crm = 4, .opc1 = 0, | |
4007 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4008 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[4]) }, | |
4009 | { .name = "946_PRBS5", .cp = 15, .crn = 6, .crm = 5, .opc1 = 0, | |
4010 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4011 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[5]) }, | |
4012 | { .name = "946_PRBS6", .cp = 15, .crn = 6, .crm = 6, .opc1 = 0, | |
4013 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4014 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[6]) }, | |
4015 | { .name = "946_PRBS7", .cp = 15, .crn = 6, .crm = 7, .opc1 = 0, | |
4016 | .opc2 = CP_ANY, .access = PL1_RW, .resetvalue = 0, | |
4017 | .fieldoffset = offsetof(CPUARMState, cp15.c6_region[7]) }, | |
18032bec PM |
4018 | }; |
4019 | ||
cb4a0a34 PM |
4020 | static void vmsa_ttbcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4021 | uint64_t value) | |
ecce5c3c | 4022 | { |
cb4a0a34 | 4023 | ARMCPU *cpu = env_archcpu(env); |
2ebcebe2 | 4024 | |
e389be16 FA |
4025 | if (!arm_feature(env, ARM_FEATURE_V8)) { |
4026 | if (arm_feature(env, ARM_FEATURE_LPAE) && (value & TTBCR_EAE)) { | |
cb4a0a34 PM |
4027 | /* |
4028 | * Pre ARMv8 bits [21:19], [15:14] and [6:3] are UNK/SBZP when | |
4029 | * using Long-descriptor translation table format | |
4030 | */ | |
e389be16 FA |
4031 | value &= ~((7 << 19) | (3 << 14) | (0xf << 3)); |
4032 | } else if (arm_feature(env, ARM_FEATURE_EL3)) { | |
cb4a0a34 PM |
4033 | /* |
4034 | * In an implementation that includes the Security Extensions | |
e389be16 FA |
4035 | * TTBCR has additional fields PD0 [4] and PD1 [5] for |
4036 | * Short-descriptor translation table format. | |
4037 | */ | |
4038 | value &= TTBCR_PD1 | TTBCR_PD0 | TTBCR_N; | |
4039 | } else { | |
4040 | value &= TTBCR_N; | |
4041 | } | |
e42c4db3 | 4042 | } |
e389be16 | 4043 | |
d4e6df63 | 4044 | if (arm_feature(env, ARM_FEATURE_LPAE)) { |
9b37a28c FR |
4045 | /* |
4046 | * With LPAE the TTBCR could result in a change of ASID | |
d4e6df63 PM |
4047 | * via the TTBCR.A1 bit, so do a TLB flush. |
4048 | */ | |
d10eb08f | 4049 | tlb_flush(CPU(cpu)); |
d4e6df63 | 4050 | } |
cb4a0a34 | 4051 | raw_write(env, ri, value); |
ecce5c3c PM |
4052 | } |
4053 | ||
d06dc933 | 4054 | static void vmsa_tcr_el12_write(CPUARMState *env, const ARMCPRegInfo *ri, |
cb2e37df PM |
4055 | uint64_t value) |
4056 | { | |
2fc0cc0e | 4057 | ARMCPU *cpu = env_archcpu(env); |
00c8cb0a | 4058 | |
cb2e37df | 4059 | /* For AArch64 the A1 bit could result in a change of ASID, so TLB flush. */ |
d10eb08f | 4060 | tlb_flush(CPU(cpu)); |
cb4a0a34 | 4061 | raw_write(env, ri, value); |
cb2e37df PM |
4062 | } |
4063 | ||
327ed10f PM |
4064 | static void vmsa_ttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4065 | uint64_t value) | |
4066 | { | |
93f379b0 RH |
4067 | /* If the ASID changes (with a 64-bit write), we must flush the TLB. */ |
4068 | if (cpreg_field_is_64bit(ri) && | |
4069 | extract64(raw_read(env, ri) ^ value, 48, 16) != 0) { | |
2fc0cc0e | 4070 | ARMCPU *cpu = env_archcpu(env); |
d10eb08f | 4071 | tlb_flush(CPU(cpu)); |
327ed10f PM |
4072 | } |
4073 | raw_write(env, ri, value); | |
4074 | } | |
4075 | ||
ed30da8e RH |
4076 | static void vmsa_tcr_ttbr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4077 | uint64_t value) | |
4078 | { | |
d06dc933 RH |
4079 | /* |
4080 | * If we are running with E2&0 regime, then an ASID is active. | |
4081 | * Flush if that might be changing. Note we're not checking | |
4082 | * TCR_EL2.A1 to know if this is really the TTBRx_EL2 that | |
4083 | * holds the active ASID, only checking the field that might. | |
4084 | */ | |
4085 | if (extract64(raw_read(env, ri) ^ value, 48, 16) && | |
4086 | (arm_hcr_el2_eff(env) & HCR_E2H)) { | |
b6ad6062 RDC |
4087 | uint16_t mask = ARMMMUIdxBit_E20_2 | |
4088 | ARMMMUIdxBit_E20_2_PAN | | |
4089 | ARMMMUIdxBit_E20_0; | |
b6ad6062 | 4090 | tlb_flush_by_mmuidx(env_cpu(env), mask); |
d06dc933 | 4091 | } |
ed30da8e RH |
4092 | raw_write(env, ri, value); |
4093 | } | |
4094 | ||
b698e9cf EI |
4095 | static void vttbr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4096 | uint64_t value) | |
4097 | { | |
2fc0cc0e | 4098 | ARMCPU *cpu = env_archcpu(env); |
b698e9cf EI |
4099 | CPUState *cs = CPU(cpu); |
4100 | ||
97fa9350 RH |
4101 | /* |
4102 | * A change in VMID to the stage2 page table (Stage2) invalidates | |
575a94af | 4103 | * the stage2 and combined stage 1&2 tlbs (EL10_1 and EL10_0). |
97fa9350 | 4104 | */ |
00b20ee4 | 4105 | if (extract64(raw_read(env, ri) ^ value, 48, 16) != 0) { |
575a94af | 4106 | tlb_flush_by_mmuidx(cs, alle1_tlbmask(env)); |
b698e9cf | 4107 | } |
00b20ee4 | 4108 | raw_write(env, ri, value); |
b698e9cf EI |
4109 | } |
4110 | ||
8e5d75c9 | 4111 | static const ARMCPRegInfo vmsa_pmsa_cp_reginfo[] = { |
18032bec | 4112 | { .name = "DFSR", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 0, |
84929218 | 4113 | .access = PL1_RW, .accessfn = access_tvm_trvm, .type = ARM_CP_ALIAS, |
4a7e2d73 | 4114 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.dfsr_s), |
b061a82b | 4115 | offsetoflow32(CPUARMState, cp15.dfsr_ns) }, }, |
18032bec | 4116 | { .name = "IFSR", .cp = 15, .crn = 5, .crm = 0, .opc1 = 0, .opc2 = 1, |
84929218 | 4117 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
88ca1c2d FA |
4118 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.ifsr_s), |
4119 | offsetoflow32(CPUARMState, cp15.ifsr_ns) } }, | |
8e5d75c9 | 4120 | { .name = "DFAR", .cp = 15, .opc1 = 0, .crn = 6, .crm = 0, .opc2 = 0, |
84929218 | 4121 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
8e5d75c9 PC |
4122 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.dfar_s), |
4123 | offsetof(CPUARMState, cp15.dfar_ns) } }, | |
4124 | { .name = "FAR_EL1", .state = ARM_CP_STATE_AA64, | |
4125 | .opc0 = 3, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 0, | |
84929218 RH |
4126 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4127 | .fieldoffset = offsetof(CPUARMState, cp15.far_el[1]), | |
8e5d75c9 | 4128 | .resetvalue = 0, }, |
8e5d75c9 PC |
4129 | }; |
4130 | ||
4131 | static const ARMCPRegInfo vmsa_cp_reginfo[] = { | |
6cd8a264 RH |
4132 | { .name = "ESR_EL1", .state = ARM_CP_STATE_AA64, |
4133 | .opc0 = 3, .crn = 5, .crm = 2, .opc1 = 0, .opc2 = 0, | |
84929218 | 4134 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
d81c519c | 4135 | .fieldoffset = offsetof(CPUARMState, cp15.esr_el[1]), .resetvalue = 0, }, |
327ed10f | 4136 | { .name = "TTBR0_EL1", .state = ARM_CP_STATE_BOTH, |
7dd8c9af | 4137 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 0, |
84929218 RH |
4138 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4139 | .writefn = vmsa_ttbr_write, .resetvalue = 0, | |
7dd8c9af FA |
4140 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr0_s), |
4141 | offsetof(CPUARMState, cp15.ttbr0_ns) } }, | |
327ed10f | 4142 | { .name = "TTBR1_EL1", .state = ARM_CP_STATE_BOTH, |
7dd8c9af | 4143 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 1, |
84929218 RH |
4144 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4145 | .writefn = vmsa_ttbr_write, .resetvalue = 0, | |
7dd8c9af FA |
4146 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr1_s), |
4147 | offsetof(CPUARMState, cp15.ttbr1_ns) } }, | |
cb2e37df PM |
4148 | { .name = "TCR_EL1", .state = ARM_CP_STATE_AA64, |
4149 | .opc0 = 3, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 2, | |
84929218 RH |
4150 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4151 | .writefn = vmsa_tcr_el12_write, | |
cb4a0a34 PM |
4152 | .raw_writefn = raw_write, |
4153 | .resetvalue = 0, | |
11f136ee | 4154 | .fieldoffset = offsetof(CPUARMState, cp15.tcr_el[1]) }, |
cb2e37df | 4155 | { .name = "TTBCR", .cp = 15, .crn = 2, .crm = 0, .opc1 = 0, .opc2 = 2, |
84929218 RH |
4156 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4157 | .type = ARM_CP_ALIAS, .writefn = vmsa_ttbcr_write, | |
cb4a0a34 PM |
4158 | .raw_writefn = raw_write, |
4159 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.tcr_el[3]), | |
4160 | offsetoflow32(CPUARMState, cp15.tcr_el[1])} }, | |
18032bec PM |
4161 | }; |
4162 | ||
9b37a28c FR |
4163 | /* |
4164 | * Note that unlike TTBCR, writing to TTBCR2 does not require flushing | |
ab638a32 RH |
4165 | * qemu tlbs nor adjusting cached masks. |
4166 | */ | |
4167 | static const ARMCPRegInfo ttbcr2_reginfo = { | |
4168 | .name = "TTBCR2", .cp = 15, .opc1 = 0, .crn = 2, .crm = 0, .opc2 = 3, | |
84929218 RH |
4169 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4170 | .type = ARM_CP_ALIAS, | |
d102058e | 4171 | .bank_fieldoffsets = { |
cb4a0a34 PM |
4172 | offsetofhigh32(CPUARMState, cp15.tcr_el[3]), |
4173 | offsetofhigh32(CPUARMState, cp15.tcr_el[1]), | |
d102058e | 4174 | }, |
ab638a32 RH |
4175 | }; |
4176 | ||
c4241c7d PM |
4177 | static void omap_ticonfig_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4178 | uint64_t value) | |
1047b9d7 PM |
4179 | { |
4180 | env->cp15.c15_ticonfig = value & 0xe7; | |
4181 | /* The OS_TYPE bit in this register changes the reported CPUID! */ | |
4182 | env->cp15.c0_cpuid = (value & (1 << 5)) ? | |
4183 | ARM_CPUID_TI915T : ARM_CPUID_TI925T; | |
1047b9d7 PM |
4184 | } |
4185 | ||
c4241c7d PM |
4186 | static void omap_threadid_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4187 | uint64_t value) | |
1047b9d7 PM |
4188 | { |
4189 | env->cp15.c15_threadid = value & 0xffff; | |
1047b9d7 PM |
4190 | } |
4191 | ||
c4241c7d PM |
4192 | static void omap_wfi_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4193 | uint64_t value) | |
1047b9d7 PM |
4194 | { |
4195 | /* Wait-for-interrupt (deprecated) */ | |
2fc0cc0e | 4196 | cpu_interrupt(env_cpu(env), CPU_INTERRUPT_HALT); |
1047b9d7 PM |
4197 | } |
4198 | ||
c4241c7d PM |
4199 | static void omap_cachemaint_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4200 | uint64_t value) | |
c4804214 | 4201 | { |
9b37a28c FR |
4202 | /* |
4203 | * On OMAP there are registers indicating the max/min index of dcache lines | |
c4804214 PM |
4204 | * containing a dirty line; cache flush operations have to reset these. |
4205 | */ | |
4206 | env->cp15.c15_i_max = 0x000; | |
4207 | env->cp15.c15_i_min = 0xff0; | |
c4804214 PM |
4208 | } |
4209 | ||
18032bec PM |
4210 | static const ARMCPRegInfo omap_cp_reginfo[] = { |
4211 | { .name = "DFSR", .cp = 15, .crn = 5, .crm = CP_ANY, | |
4212 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, .type = ARM_CP_OVERRIDE, | |
d81c519c | 4213 | .fieldoffset = offsetoflow32(CPUARMState, cp15.esr_el[1]), |
6cd8a264 | 4214 | .resetvalue = 0, }, |
1047b9d7 PM |
4215 | { .name = "", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0, |
4216 | .access = PL1_RW, .type = ARM_CP_NOP }, | |
4217 | { .name = "TICONFIG", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0, | |
4218 | .access = PL1_RW, | |
4219 | .fieldoffset = offsetof(CPUARMState, cp15.c15_ticonfig), .resetvalue = 0, | |
4220 | .writefn = omap_ticonfig_write }, | |
4221 | { .name = "IMAX", .cp = 15, .crn = 15, .crm = 2, .opc1 = 0, .opc2 = 0, | |
4222 | .access = PL1_RW, | |
4223 | .fieldoffset = offsetof(CPUARMState, cp15.c15_i_max), .resetvalue = 0, }, | |
4224 | { .name = "IMIN", .cp = 15, .crn = 15, .crm = 3, .opc1 = 0, .opc2 = 0, | |
4225 | .access = PL1_RW, .resetvalue = 0xff0, | |
4226 | .fieldoffset = offsetof(CPUARMState, cp15.c15_i_min) }, | |
4227 | { .name = "THREADID", .cp = 15, .crn = 15, .crm = 4, .opc1 = 0, .opc2 = 0, | |
4228 | .access = PL1_RW, | |
4229 | .fieldoffset = offsetof(CPUARMState, cp15.c15_threadid), .resetvalue = 0, | |
4230 | .writefn = omap_threadid_write }, | |
4231 | { .name = "TI925T_STATUS", .cp = 15, .crn = 15, | |
4232 | .crm = 8, .opc1 = 0, .opc2 = 0, .access = PL1_RW, | |
7a0e58fa | 4233 | .type = ARM_CP_NO_RAW, |
1047b9d7 | 4234 | .readfn = arm_cp_read_zero, .writefn = omap_wfi_write, }, |
9b37a28c FR |
4235 | /* |
4236 | * TODO: Peripheral port remap register: | |
1047b9d7 PM |
4237 | * On OMAP2 mcr p15, 0, rn, c15, c2, 4 sets up the interrupt controller |
4238 | * base address at $rn & ~0xfff and map size of 0x200 << ($rn & 0xfff), | |
4239 | * when MMU is off. | |
4240 | */ | |
c4804214 | 4241 | { .name = "OMAP_CACHEMAINT", .cp = 15, .crn = 7, .crm = CP_ANY, |
d4e6df63 | 4242 | .opc1 = 0, .opc2 = CP_ANY, .access = PL1_W, |
7a0e58fa | 4243 | .type = ARM_CP_OVERRIDE | ARM_CP_NO_RAW, |
c4804214 | 4244 | .writefn = omap_cachemaint_write }, |
34f90529 PM |
4245 | { .name = "C9", .cp = 15, .crn = 9, |
4246 | .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_RW, | |
4247 | .type = ARM_CP_CONST | ARM_CP_OVERRIDE, .resetvalue = 0 }, | |
1047b9d7 PM |
4248 | }; |
4249 | ||
c4241c7d PM |
4250 | static void xscale_cpar_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4251 | uint64_t value) | |
1047b9d7 | 4252 | { |
c0f4af17 | 4253 | env->cp15.c15_cpar = value & 0x3fff; |
1047b9d7 PM |
4254 | } |
4255 | ||
4256 | static const ARMCPRegInfo xscale_cp_reginfo[] = { | |
4257 | { .name = "XSCALE_CPAR", | |
4258 | .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0, .access = PL1_RW, | |
4259 | .fieldoffset = offsetof(CPUARMState, cp15.c15_cpar), .resetvalue = 0, | |
4260 | .writefn = xscale_cpar_write, }, | |
2771db27 PM |
4261 | { .name = "XSCALE_AUXCR", |
4262 | .cp = 15, .crn = 1, .crm = 0, .opc1 = 0, .opc2 = 1, .access = PL1_RW, | |
4263 | .fieldoffset = offsetof(CPUARMState, cp15.c1_xscaleauxcr), | |
4264 | .resetvalue = 0, }, | |
9b37a28c FR |
4265 | /* |
4266 | * XScale specific cache-lockdown: since we have no cache we NOP these | |
3b771579 PM |
4267 | * and hope the guest does not really rely on cache behaviour. |
4268 | */ | |
4269 | { .name = "XSCALE_LOCK_ICACHE_LINE", | |
4270 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 0, | |
4271 | .access = PL1_W, .type = ARM_CP_NOP }, | |
4272 | { .name = "XSCALE_UNLOCK_ICACHE", | |
4273 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 1, | |
4274 | .access = PL1_W, .type = ARM_CP_NOP }, | |
4275 | { .name = "XSCALE_DCACHE_LOCK", | |
4276 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 2, .opc2 = 0, | |
4277 | .access = PL1_RW, .type = ARM_CP_NOP }, | |
4278 | { .name = "XSCALE_UNLOCK_DCACHE", | |
4279 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 2, .opc2 = 1, | |
4280 | .access = PL1_W, .type = ARM_CP_NOP }, | |
1047b9d7 PM |
4281 | }; |
4282 | ||
4283 | static const ARMCPRegInfo dummy_c15_cp_reginfo[] = { | |
9b37a28c FR |
4284 | /* |
4285 | * RAZ/WI the whole crn=15 space, when we don't have a more specific | |
1047b9d7 PM |
4286 | * implementation of this implementation-defined space. |
4287 | * Ideally this should eventually disappear in favour of actually | |
4288 | * implementing the correct behaviour for all cores. | |
4289 | */ | |
4290 | { .name = "C15_IMPDEF", .cp = 15, .crn = 15, | |
4291 | .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, | |
3671cd87 | 4292 | .access = PL1_RW, |
7a0e58fa | 4293 | .type = ARM_CP_CONST | ARM_CP_NO_RAW | ARM_CP_OVERRIDE, |
d4e6df63 | 4294 | .resetvalue = 0 }, |
18032bec PM |
4295 | }; |
4296 | ||
c4804214 PM |
4297 | static const ARMCPRegInfo cache_dirty_status_cp_reginfo[] = { |
4298 | /* Cache status: RAZ because we have no cache so it's always clean */ | |
4299 | { .name = "CDSR", .cp = 15, .crn = 7, .crm = 10, .opc1 = 0, .opc2 = 6, | |
7a0e58fa | 4300 | .access = PL1_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4301 | .resetvalue = 0 }, |
c4804214 PM |
4302 | }; |
4303 | ||
4304 | static const ARMCPRegInfo cache_block_ops_cp_reginfo[] = { | |
a07d9df0 | 4305 | /* We never have a block transfer operation in progress */ |
c4804214 | 4306 | { .name = "BXSR", .cp = 15, .crn = 7, .crm = 12, .opc1 = 0, .opc2 = 4, |
7a0e58fa | 4307 | .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4308 | .resetvalue = 0 }, |
30b05bba PM |
4309 | /* The cache ops themselves: these all NOP for QEMU */ |
4310 | { .name = "IICR", .cp = 15, .crm = 5, .opc1 = 0, | |
04215eb1 | 4311 | .access = PL1_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4312 | { .name = "IDCR", .cp = 15, .crm = 6, .opc1 = 0, |
04215eb1 | 4313 | .access = PL1_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4314 | { .name = "CDCR", .cp = 15, .crm = 12, .opc1 = 0, |
04215eb1 | 4315 | .access = PL0_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4316 | { .name = "PIR", .cp = 15, .crm = 12, .opc1 = 1, |
04215eb1 | 4317 | .access = PL0_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4318 | { .name = "PDR", .cp = 15, .crm = 12, .opc1 = 2, |
04215eb1 | 4319 | .access = PL0_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
30b05bba | 4320 | { .name = "CIDCR", .cp = 15, .crm = 14, .opc1 = 0, |
04215eb1 | 4321 | .access = PL1_W, .type = ARM_CP_NOP | ARM_CP_64BIT }, |
c4804214 PM |
4322 | }; |
4323 | ||
4324 | static const ARMCPRegInfo cache_test_clean_cp_reginfo[] = { | |
9b37a28c FR |
4325 | /* |
4326 | * The cache test-and-clean instructions always return (1 << 30) | |
c4804214 PM |
4327 | * to indicate that there are no dirty cache lines. |
4328 | */ | |
4329 | { .name = "TC_DCACHE", .cp = 15, .crn = 7, .crm = 10, .opc1 = 0, .opc2 = 3, | |
7a0e58fa | 4330 | .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4331 | .resetvalue = (1 << 30) }, |
c4804214 | 4332 | { .name = "TCI_DCACHE", .cp = 15, .crn = 7, .crm = 14, .opc1 = 0, .opc2 = 3, |
7a0e58fa | 4333 | .access = PL0_R, .type = ARM_CP_CONST | ARM_CP_NO_RAW, |
d4e6df63 | 4334 | .resetvalue = (1 << 30) }, |
c4804214 PM |
4335 | }; |
4336 | ||
34f90529 PM |
4337 | static const ARMCPRegInfo strongarm_cp_reginfo[] = { |
4338 | /* Ignore ReadBuffer accesses */ | |
4339 | { .name = "C9_READBUFFER", .cp = 15, .crn = 9, | |
4340 | .crm = CP_ANY, .opc1 = CP_ANY, .opc2 = CP_ANY, | |
d4e6df63 | 4341 | .access = PL1_RW, .resetvalue = 0, |
7a0e58fa | 4342 | .type = ARM_CP_CONST | ARM_CP_OVERRIDE | ARM_CP_NO_RAW }, |
34f90529 PM |
4343 | }; |
4344 | ||
731de9e6 EI |
4345 | static uint64_t midr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4346 | { | |
731de9e6 | 4347 | unsigned int cur_el = arm_current_el(env); |
731de9e6 | 4348 | |
e6ef0169 | 4349 | if (arm_is_el2_enabled(env) && cur_el == 1) { |
731de9e6 EI |
4350 | return env->cp15.vpidr_el2; |
4351 | } | |
4352 | return raw_read(env, ri); | |
4353 | } | |
4354 | ||
06a7e647 | 4355 | static uint64_t mpidr_read_val(CPUARMState *env) |
81bdde9d | 4356 | { |
2fc0cc0e | 4357 | ARMCPU *cpu = env_archcpu(env); |
eb5e1d3c PF |
4358 | uint64_t mpidr = cpu->mp_affinity; |
4359 | ||
81bdde9d | 4360 | if (arm_feature(env, ARM_FEATURE_V7MP)) { |
78dbbbe4 | 4361 | mpidr |= (1U << 31); |
9b37a28c FR |
4362 | /* |
4363 | * Cores which are uniprocessor (non-coherent) | |
81bdde9d | 4364 | * but still implement the MP extensions set |
a8e81b31 | 4365 | * bit 30. (For instance, Cortex-R5). |
81bdde9d | 4366 | */ |
a8e81b31 PC |
4367 | if (cpu->mp_is_up) { |
4368 | mpidr |= (1u << 30); | |
4369 | } | |
81bdde9d | 4370 | } |
c4241c7d | 4371 | return mpidr; |
81bdde9d PM |
4372 | } |
4373 | ||
06a7e647 EI |
4374 | static uint64_t mpidr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4375 | { | |
f0d574d6 | 4376 | unsigned int cur_el = arm_current_el(env); |
f0d574d6 | 4377 | |
e6ef0169 | 4378 | if (arm_is_el2_enabled(env) && cur_el == 1) { |
f0d574d6 EI |
4379 | return env->cp15.vmpidr_el2; |
4380 | } | |
06a7e647 EI |
4381 | return mpidr_read_val(env); |
4382 | } | |
4383 | ||
7ac681cf | 4384 | static const ARMCPRegInfo lpae_cp_reginfo[] = { |
a903c449 | 4385 | /* NOP AMAIR0/1 */ |
b0fe2427 PM |
4386 | { .name = "AMAIR0", .state = ARM_CP_STATE_BOTH, |
4387 | .opc0 = 3, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 0, | |
84929218 RH |
4388 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4389 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
b0fe2427 | 4390 | /* AMAIR1 is mapped to AMAIR_EL1[63:32] */ |
7ac681cf | 4391 | { .name = "AMAIR1", .cp = 15, .crn = 10, .crm = 3, .opc1 = 0, .opc2 = 1, |
84929218 RH |
4392 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4393 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
891a2fe7 | 4394 | { .name = "PAR", .cp = 15, .crm = 7, .opc1 = 0, |
01c097f7 FA |
4395 | .access = PL1_RW, .type = ARM_CP_64BIT, .resetvalue = 0, |
4396 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.par_s), | |
4397 | offsetof(CPUARMState, cp15.par_ns)} }, | |
891a2fe7 | 4398 | { .name = "TTBR0", .cp = 15, .crm = 2, .opc1 = 0, |
84929218 RH |
4399 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4400 | .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
7dd8c9af FA |
4401 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr0_s), |
4402 | offsetof(CPUARMState, cp15.ttbr0_ns) }, | |
b061a82b | 4403 | .writefn = vmsa_ttbr_write, }, |
891a2fe7 | 4404 | { .name = "TTBR1", .cp = 15, .crm = 2, .opc1 = 1, |
84929218 RH |
4405 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
4406 | .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
7dd8c9af FA |
4407 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.ttbr1_s), |
4408 | offsetof(CPUARMState, cp15.ttbr1_ns) }, | |
b061a82b | 4409 | .writefn = vmsa_ttbr_write, }, |
7ac681cf PM |
4410 | }; |
4411 | ||
c4241c7d | 4412 | static uint64_t aa64_fpcr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
b0d2b7d0 | 4413 | { |
c4241c7d | 4414 | return vfp_get_fpcr(env); |
b0d2b7d0 PM |
4415 | } |
4416 | ||
c4241c7d PM |
4417 | static void aa64_fpcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4418 | uint64_t value) | |
b0d2b7d0 PM |
4419 | { |
4420 | vfp_set_fpcr(env, value); | |
b0d2b7d0 PM |
4421 | } |
4422 | ||
c4241c7d | 4423 | static uint64_t aa64_fpsr_read(CPUARMState *env, const ARMCPRegInfo *ri) |
b0d2b7d0 | 4424 | { |
c4241c7d | 4425 | return vfp_get_fpsr(env); |
b0d2b7d0 PM |
4426 | } |
4427 | ||
c4241c7d PM |
4428 | static void aa64_fpsr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4429 | uint64_t value) | |
b0d2b7d0 PM |
4430 | { |
4431 | vfp_set_fpsr(env, value); | |
b0d2b7d0 PM |
4432 | } |
4433 | ||
3f208fd7 PM |
4434 | static CPAccessResult aa64_daif_access(CPUARMState *env, const ARMCPRegInfo *ri, |
4435 | bool isread) | |
c2b820fe | 4436 | { |
aaec1432 | 4437 | if (arm_current_el(env) == 0 && !(arm_sctlr(env, 0) & SCTLR_UMA)) { |
c2b820fe PM |
4438 | return CP_ACCESS_TRAP; |
4439 | } | |
4440 | return CP_ACCESS_OK; | |
4441 | } | |
4442 | ||
4443 | static void aa64_daif_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4444 | uint64_t value) | |
4445 | { | |
4446 | env->daif = value & PSTATE_DAIF; | |
4447 | } | |
4448 | ||
220f508f RH |
4449 | static uint64_t aa64_pan_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4450 | { | |
4451 | return env->pstate & PSTATE_PAN; | |
4452 | } | |
4453 | ||
4454 | static void aa64_pan_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4455 | uint64_t value) | |
4456 | { | |
4457 | env->pstate = (env->pstate & ~PSTATE_PAN) | (value & PSTATE_PAN); | |
4458 | } | |
4459 | ||
4460 | static const ARMCPRegInfo pan_reginfo = { | |
4461 | .name = "PAN", .state = ARM_CP_STATE_AA64, | |
4462 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 3, | |
4463 | .type = ARM_CP_NO_RAW, .access = PL1_RW, | |
4464 | .readfn = aa64_pan_read, .writefn = aa64_pan_write | |
4465 | }; | |
4466 | ||
9eeb7a1c RH |
4467 | static uint64_t aa64_uao_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4468 | { | |
4469 | return env->pstate & PSTATE_UAO; | |
4470 | } | |
4471 | ||
4472 | static void aa64_uao_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4473 | uint64_t value) | |
4474 | { | |
4475 | env->pstate = (env->pstate & ~PSTATE_UAO) | (value & PSTATE_UAO); | |
4476 | } | |
4477 | ||
4478 | static const ARMCPRegInfo uao_reginfo = { | |
4479 | .name = "UAO", .state = ARM_CP_STATE_AA64, | |
4480 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 4, | |
4481 | .type = ARM_CP_NO_RAW, .access = PL1_RW, | |
4482 | .readfn = aa64_uao_read, .writefn = aa64_uao_write | |
4483 | }; | |
4484 | ||
dc8b1853 RC |
4485 | static uint64_t aa64_dit_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4486 | { | |
4487 | return env->pstate & PSTATE_DIT; | |
4488 | } | |
4489 | ||
4490 | static void aa64_dit_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4491 | uint64_t value) | |
4492 | { | |
4493 | env->pstate = (env->pstate & ~PSTATE_DIT) | (value & PSTATE_DIT); | |
4494 | } | |
4495 | ||
4496 | static const ARMCPRegInfo dit_reginfo = { | |
4497 | .name = "DIT", .state = ARM_CP_STATE_AA64, | |
4498 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 5, | |
4499 | .type = ARM_CP_NO_RAW, .access = PL0_RW, | |
4500 | .readfn = aa64_dit_read, .writefn = aa64_dit_write | |
4501 | }; | |
4502 | ||
f2f68a78 RC |
4503 | static uint64_t aa64_ssbs_read(CPUARMState *env, const ARMCPRegInfo *ri) |
4504 | { | |
4505 | return env->pstate & PSTATE_SSBS; | |
4506 | } | |
4507 | ||
4508 | static void aa64_ssbs_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4509 | uint64_t value) | |
4510 | { | |
4511 | env->pstate = (env->pstate & ~PSTATE_SSBS) | (value & PSTATE_SSBS); | |
4512 | } | |
4513 | ||
4514 | static const ARMCPRegInfo ssbs_reginfo = { | |
4515 | .name = "SSBS", .state = ARM_CP_STATE_AA64, | |
4516 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 6, | |
4517 | .type = ARM_CP_NO_RAW, .access = PL0_RW, | |
4518 | .readfn = aa64_ssbs_read, .writefn = aa64_ssbs_write | |
4519 | }; | |
4520 | ||
38262d8a RH |
4521 | static CPAccessResult aa64_cacheop_poc_access(CPUARMState *env, |
4522 | const ARMCPRegInfo *ri, | |
4523 | bool isread) | |
8af35c37 | 4524 | { |
38262d8a RH |
4525 | /* Cache invalidate/clean to Point of Coherency or Persistence... */ |
4526 | switch (arm_current_el(env)) { | |
4527 | case 0: | |
4528 | /* ... EL0 must UNDEF unless SCTLR_EL1.UCI is set. */ | |
4529 | if (!(arm_sctlr(env, 0) & SCTLR_UCI)) { | |
4530 | return CP_ACCESS_TRAP; | |
4531 | } | |
4532 | /* fall through */ | |
4533 | case 1: | |
4534 | /* ... EL1 must trap to EL2 if HCR_EL2.TPCP is set. */ | |
4535 | if (arm_hcr_el2_eff(env) & HCR_TPCP) { | |
4536 | return CP_ACCESS_TRAP_EL2; | |
4537 | } | |
4538 | break; | |
8af35c37 PM |
4539 | } |
4540 | return CP_ACCESS_OK; | |
4541 | } | |
4542 | ||
2d3ce4c6 | 4543 | static CPAccessResult do_cacheop_pou_access(CPUARMState *env, uint64_t hcrflags) |
1bed4d2e | 4544 | { |
38262d8a | 4545 | /* Cache invalidate/clean to Point of Unification... */ |
1bed4d2e RH |
4546 | switch (arm_current_el(env)) { |
4547 | case 0: | |
4548 | /* ... EL0 must UNDEF unless SCTLR_EL1.UCI is set. */ | |
4549 | if (!(arm_sctlr(env, 0) & SCTLR_UCI)) { | |
4550 | return CP_ACCESS_TRAP; | |
4551 | } | |
4552 | /* fall through */ | |
4553 | case 1: | |
2d3ce4c6 PM |
4554 | /* ... EL1 must trap to EL2 if relevant HCR_EL2 flags are set. */ |
4555 | if (arm_hcr_el2_eff(env) & hcrflags) { | |
1bed4d2e RH |
4556 | return CP_ACCESS_TRAP_EL2; |
4557 | } | |
4558 | break; | |
4559 | } | |
4560 | return CP_ACCESS_OK; | |
4561 | } | |
4562 | ||
2d3ce4c6 PM |
4563 | static CPAccessResult access_ticab(CPUARMState *env, const ARMCPRegInfo *ri, |
4564 | bool isread) | |
4565 | { | |
4566 | return do_cacheop_pou_access(env, HCR_TICAB | HCR_TPU); | |
4567 | } | |
4568 | ||
4569 | static CPAccessResult access_tocu(CPUARMState *env, const ARMCPRegInfo *ri, | |
4570 | bool isread) | |
4571 | { | |
4572 | return do_cacheop_pou_access(env, HCR_TOCU | HCR_TPU); | |
4573 | } | |
4574 | ||
9b37a28c FR |
4575 | /* |
4576 | * See: D4.7.2 TLB maintenance requirements and the TLB maintenance instructions | |
dbb1fb27 AB |
4577 | * Page D4-1736 (DDI0487A.b) |
4578 | */ | |
4579 | ||
b7e0730d RH |
4580 | static int vae1_tlbmask(CPUARMState *env) |
4581 | { | |
e04a5752 | 4582 | uint64_t hcr = arm_hcr_el2_eff(env); |
bc944d3a | 4583 | uint16_t mask; |
e04a5752 RDC |
4584 | |
4585 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
bc944d3a RDC |
4586 | mask = ARMMMUIdxBit_E20_2 | |
4587 | ARMMMUIdxBit_E20_2_PAN | | |
4588 | ARMMMUIdxBit_E20_0; | |
b7e0730d | 4589 | } else { |
bc944d3a | 4590 | mask = ARMMMUIdxBit_E10_1 | |
452ef8cb RH |
4591 | ARMMMUIdxBit_E10_1_PAN | |
4592 | ARMMMUIdxBit_E10_0; | |
b7e0730d | 4593 | } |
bc944d3a | 4594 | return mask; |
b7e0730d RH |
4595 | } |
4596 | ||
ea04dce7 RH |
4597 | /* Return 56 if TBI is enabled, 64 otherwise. */ |
4598 | static int tlbbits_for_regime(CPUARMState *env, ARMMMUIdx mmu_idx, | |
4599 | uint64_t addr) | |
4600 | { | |
c1547bba | 4601 | uint64_t tcr = regime_tcr(env, mmu_idx); |
ea04dce7 RH |
4602 | int tbi = aa64_va_parameter_tbi(tcr, mmu_idx); |
4603 | int select = extract64(addr, 55, 1); | |
4604 | ||
4605 | return (tbi >> select) & 1 ? 56 : 64; | |
4606 | } | |
4607 | ||
4608 | static int vae1_tlbbits(CPUARMState *env, uint64_t addr) | |
4609 | { | |
b6ad6062 | 4610 | uint64_t hcr = arm_hcr_el2_eff(env); |
ea04dce7 RH |
4611 | ARMMMUIdx mmu_idx; |
4612 | ||
4613 | /* Only the regime of the mmu_idx below is significant. */ | |
b6ad6062 | 4614 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { |
ea04dce7 RH |
4615 | mmu_idx = ARMMMUIdx_E20_0; |
4616 | } else { | |
4617 | mmu_idx = ARMMMUIdx_E10_0; | |
4618 | } | |
b6ad6062 | 4619 | |
ea04dce7 RH |
4620 | return tlbbits_for_regime(env, mmu_idx, addr); |
4621 | } | |
4622 | ||
fd3ed969 PM |
4623 | static void tlbi_aa64_vmalle1is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4624 | uint64_t value) | |
168aa23b | 4625 | { |
29a0af61 | 4626 | CPUState *cs = env_cpu(env); |
b7e0730d | 4627 | int mask = vae1_tlbmask(env); |
dbb1fb27 | 4628 | |
b7e0730d | 4629 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); |
168aa23b PM |
4630 | } |
4631 | ||
b4ab8ce9 PM |
4632 | static void tlbi_aa64_vmalle1_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4633 | uint64_t value) | |
4634 | { | |
29a0af61 | 4635 | CPUState *cs = env_cpu(env); |
b7e0730d | 4636 | int mask = vae1_tlbmask(env); |
b4ab8ce9 PM |
4637 | |
4638 | if (tlb_force_broadcast(env)) { | |
527db2be RH |
4639 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); |
4640 | } else { | |
4641 | tlb_flush_by_mmuidx(cs, mask); | |
b4ab8ce9 | 4642 | } |
b4ab8ce9 PM |
4643 | } |
4644 | ||
85d0dc9f RH |
4645 | static int e2_tlbmask(CPUARMState *env) |
4646 | { | |
d902ae75 RH |
4647 | return (ARMMMUIdxBit_E20_0 | |
4648 | ARMMMUIdxBit_E20_2 | | |
4649 | ARMMMUIdxBit_E20_2_PAN | | |
4650 | ARMMMUIdxBit_E2); | |
85d0dc9f RH |
4651 | } |
4652 | ||
90c19cdf RH |
4653 | static void tlbi_aa64_alle1_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4654 | uint64_t value) | |
4655 | { | |
4656 | CPUState *cs = env_cpu(env); | |
4657 | int mask = alle1_tlbmask(env); | |
4658 | ||
4659 | tlb_flush_by_mmuidx(cs, mask); | |
4660 | } | |
4661 | ||
fd3ed969 | 4662 | static void tlbi_aa64_alle2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
fa439fc5 PM |
4663 | uint64_t value) |
4664 | { | |
85d0dc9f RH |
4665 | CPUState *cs = env_cpu(env); |
4666 | int mask = e2_tlbmask(env); | |
fd3ed969 | 4667 | |
85d0dc9f | 4668 | tlb_flush_by_mmuidx(cs, mask); |
fd3ed969 PM |
4669 | } |
4670 | ||
43efaa33 PM |
4671 | static void tlbi_aa64_alle3_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4672 | uint64_t value) | |
4673 | { | |
2fc0cc0e | 4674 | ARMCPU *cpu = env_archcpu(env); |
43efaa33 PM |
4675 | CPUState *cs = CPU(cpu); |
4676 | ||
d902ae75 | 4677 | tlb_flush_by_mmuidx(cs, ARMMMUIdxBit_E3); |
43efaa33 PM |
4678 | } |
4679 | ||
fd3ed969 PM |
4680 | static void tlbi_aa64_alle1is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4681 | uint64_t value) | |
4682 | { | |
29a0af61 | 4683 | CPUState *cs = env_cpu(env); |
90c19cdf RH |
4684 | int mask = alle1_tlbmask(env); |
4685 | ||
4686 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); | |
fa439fc5 PM |
4687 | } |
4688 | ||
2bfb9d75 PM |
4689 | static void tlbi_aa64_alle2is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4690 | uint64_t value) | |
4691 | { | |
29a0af61 | 4692 | CPUState *cs = env_cpu(env); |
85d0dc9f | 4693 | int mask = e2_tlbmask(env); |
2bfb9d75 | 4694 | |
85d0dc9f | 4695 | tlb_flush_by_mmuidx_all_cpus_synced(cs, mask); |
2bfb9d75 PM |
4696 | } |
4697 | ||
43efaa33 PM |
4698 | static void tlbi_aa64_alle3is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4699 | uint64_t value) | |
4700 | { | |
29a0af61 | 4701 | CPUState *cs = env_cpu(env); |
43efaa33 | 4702 | |
d902ae75 | 4703 | tlb_flush_by_mmuidx_all_cpus_synced(cs, ARMMMUIdxBit_E3); |
43efaa33 PM |
4704 | } |
4705 | ||
fd3ed969 PM |
4706 | static void tlbi_aa64_vae2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4707 | uint64_t value) | |
fa439fc5 | 4708 | { |
9b37a28c FR |
4709 | /* |
4710 | * Invalidate by VA, EL2 | |
fd3ed969 PM |
4711 | * Currently handles both VAE2 and VALE2, since we don't support |
4712 | * flush-last-level-only. | |
4713 | */ | |
85d0dc9f RH |
4714 | CPUState *cs = env_cpu(env); |
4715 | int mask = e2_tlbmask(env); | |
fd3ed969 PM |
4716 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
4717 | ||
85d0dc9f | 4718 | tlb_flush_page_by_mmuidx(cs, pageaddr, mask); |
fd3ed969 PM |
4719 | } |
4720 | ||
43efaa33 PM |
4721 | static void tlbi_aa64_vae3_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4722 | uint64_t value) | |
4723 | { | |
9b37a28c FR |
4724 | /* |
4725 | * Invalidate by VA, EL3 | |
43efaa33 PM |
4726 | * Currently handles both VAE3 and VALE3, since we don't support |
4727 | * flush-last-level-only. | |
4728 | */ | |
2fc0cc0e | 4729 | ARMCPU *cpu = env_archcpu(env); |
43efaa33 PM |
4730 | CPUState *cs = CPU(cpu); |
4731 | uint64_t pageaddr = sextract64(value << 12, 0, 56); | |
4732 | ||
d902ae75 | 4733 | tlb_flush_page_by_mmuidx(cs, pageaddr, ARMMMUIdxBit_E3); |
43efaa33 PM |
4734 | } |
4735 | ||
fd3ed969 PM |
4736 | static void tlbi_aa64_vae1is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4737 | uint64_t value) | |
4738 | { | |
90c19cdf RH |
4739 | CPUState *cs = env_cpu(env); |
4740 | int mask = vae1_tlbmask(env); | |
fa439fc5 | 4741 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
ea04dce7 | 4742 | int bits = vae1_tlbbits(env, pageaddr); |
fa439fc5 | 4743 | |
ea04dce7 | 4744 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, mask, bits); |
fa439fc5 PM |
4745 | } |
4746 | ||
b4ab8ce9 PM |
4747 | static void tlbi_aa64_vae1_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4748 | uint64_t value) | |
4749 | { | |
9b37a28c FR |
4750 | /* |
4751 | * Invalidate by VA, EL1&0 (AArch64 version). | |
b4ab8ce9 PM |
4752 | * Currently handles all of VAE1, VAAE1, VAALE1 and VALE1, |
4753 | * since we don't support flush-for-specific-ASID-only or | |
4754 | * flush-last-level-only. | |
4755 | */ | |
90c19cdf RH |
4756 | CPUState *cs = env_cpu(env); |
4757 | int mask = vae1_tlbmask(env); | |
b4ab8ce9 | 4758 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
ea04dce7 | 4759 | int bits = vae1_tlbbits(env, pageaddr); |
b4ab8ce9 PM |
4760 | |
4761 | if (tlb_force_broadcast(env)) { | |
ea04dce7 | 4762 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, mask, bits); |
527db2be | 4763 | } else { |
ea04dce7 | 4764 | tlb_flush_page_bits_by_mmuidx(cs, pageaddr, mask, bits); |
b4ab8ce9 | 4765 | } |
b4ab8ce9 PM |
4766 | } |
4767 | ||
fd3ed969 PM |
4768 | static void tlbi_aa64_vae2is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4769 | uint64_t value) | |
fa439fc5 | 4770 | { |
29a0af61 | 4771 | CPUState *cs = env_cpu(env); |
fd3ed969 | 4772 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
d902ae75 | 4773 | int bits = tlbbits_for_regime(env, ARMMMUIdx_E2, pageaddr); |
fa439fc5 | 4774 | |
d902ae75 RH |
4775 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, |
4776 | ARMMMUIdxBit_E2, bits); | |
fa439fc5 PM |
4777 | } |
4778 | ||
43efaa33 PM |
4779 | static void tlbi_aa64_vae3is_write(CPUARMState *env, const ARMCPRegInfo *ri, |
4780 | uint64_t value) | |
4781 | { | |
29a0af61 | 4782 | CPUState *cs = env_cpu(env); |
43efaa33 | 4783 | uint64_t pageaddr = sextract64(value << 12, 0, 56); |
d902ae75 | 4784 | int bits = tlbbits_for_regime(env, ARMMMUIdx_E3, pageaddr); |
43efaa33 | 4785 | |
ea04dce7 | 4786 | tlb_flush_page_bits_by_mmuidx_all_cpus_synced(cs, pageaddr, |
d902ae75 | 4787 | ARMMMUIdxBit_E3, bits); |
43efaa33 PM |
4788 | } |
4789 | ||
575a94af RH |
4790 | static int ipas2e1_tlbmask(CPUARMState *env, int64_t value) |
4791 | { | |
4792 | /* | |
4793 | * The MSB of value is the NS field, which only applies if SEL2 | |
4794 | * is implemented and SCR_EL3.NS is not set (i.e. in secure mode). | |
4795 | */ | |
4796 | return (value >= 0 | |
4797 | && cpu_isar_feature(aa64_sel2, env_archcpu(env)) | |
4798 | && arm_is_secure_below_el3(env) | |
4799 | ? ARMMMUIdxBit_Stage2_S | |
4800 | : ARMMMUIdxBit_Stage2); | |
4801 | } | |
4802 | ||
4803 | static void tlbi_aa64_ipas2e1_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4804 | uint64_t value) | |
4805 | { | |
4806 | CPUState *cs = env_cpu(env); | |
4807 | int mask = ipas2e1_tlbmask(env, value); | |
4808 | uint64_t pageaddr = sextract64(value << 12, 0, 56); | |
4809 | ||
4810 | if (tlb_force_broadcast(env)) { | |
4811 | tlb_flush_page_by_mmuidx_all_cpus_synced(cs, pageaddr, mask); | |
4812 | } else { | |
4813 | tlb_flush_page_by_mmuidx(cs, pageaddr, mask); | |
4814 | } | |
4815 | } | |
4816 | ||
4817 | static void tlbi_aa64_ipas2e1is_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
4818 | uint64_t value) | |
4819 | { | |
4820 | CPUState *cs = env_cpu(env); | |
4821 | int mask = ipas2e1_tlbmask(env, value); | |
4822 | uint64_t pageaddr = sextract64(value << 12, 0, 56); | |
4823 | ||
4824 | tlb_flush_page_by_mmuidx_all_cpus_synced(cs, pageaddr, mask); | |
4825 | } | |
4826 | ||
84940ed8 | 4827 | #ifdef TARGET_AARCH64 |
ab1cdb47 RH |
4828 | typedef struct { |
4829 | uint64_t base; | |
84940ed8 | 4830 | uint64_t length; |
ab1cdb47 RH |
4831 | } TLBIRange; |
4832 | ||
3c003f70 PM |
4833 | static ARMGranuleSize tlbi_range_tg_to_gran_size(int tg) |
4834 | { | |
4835 | /* | |
4836 | * Note that the TLBI range TG field encoding differs from both | |
4837 | * TG0 and TG1 encodings. | |
4838 | */ | |
4839 | switch (tg) { | |
4840 | case 1: | |
4841 | return Gran4K; | |
4842 | case 2: | |
4843 | return Gran16K; | |
4844 | case 3: | |
4845 | return Gran64K; | |
4846 | default: | |
4847 | return GranInvalid; | |
4848 | } | |
4849 | } | |
4850 | ||
ab1cdb47 RH |
4851 | static TLBIRange tlbi_aa64_get_range(CPUARMState *env, ARMMMUIdx mmuidx, |
4852 | uint64_t value) | |
4853 | { | |
4854 | unsigned int page_size_granule, page_shift, num, scale, exponent; | |
3974ff93 RH |
4855 | /* Extract one bit to represent the va selector in use. */ |
4856 | uint64_t select = sextract64(value, 36, 1); | |
4857 | ARMVAParameters param = aa64_va_parameters(env, select, mmuidx, true); | |
ab1cdb47 | 4858 | TLBIRange ret = { }; |
3c003f70 | 4859 | ARMGranuleSize gran; |
84940ed8 | 4860 | |
84940ed8 | 4861 | page_size_granule = extract64(value, 46, 2); |
3c003f70 | 4862 | gran = tlbi_range_tg_to_gran_size(page_size_granule); |
84940ed8 | 4863 | |
3974ff93 | 4864 | /* The granule encoded in value must match the granule in use. */ |
3c003f70 | 4865 | if (gran != param.gran) { |
3974ff93 | 4866 | qemu_log_mask(LOG_GUEST_ERROR, "Invalid tlbi page size granule %d\n", |
84940ed8 | 4867 | page_size_granule); |
ab1cdb47 | 4868 | return ret; |
84940ed8 RC |
4869 | } |
4870 | ||
3c003f70 | 4871 | page_shift = arm_granule_bits(gran); |
ab1cdb47 RH |
4872 | num = extract64(value, 39, 5); |
4873 | scale = extract64(value, 44, 2); | |
84940ed8 | 4874 | exponent = (5 * scale) + 1; |
84940ed8 | 4875 | |
ab1cdb47 | 4876 | ret.length = (num + 1) << (exponent + page_shift); |
84940ed8 | 4877 | |
3974ff93 | 4878 | if (param.select) { |
d976de21 | 4879 | ret.base = sextract64(value, 0, 37); |
84940ed8 | 4880 | } else { |
d976de21 | 4881 | ret.base = extract64(value, 0, 37); |
84940ed8 | 4882 | } |
ef56c242 RH |
4883 | if (param.ds) { |
4884 | /* | |
4885 | * With DS=1, BaseADDR is always shifted 16 so that it is able | |
4886 | * to address all 52 va bits. The input address is perforce | |
4887 | * aligned on a 64k boundary regardless of translation granule. | |
4888 | */ | |
4889 | page_shift = 16; | |
4890 | } | |
d976de21 | 4891 | ret.base <<= page_shift; |
84940ed8 | 4892 | |
ab1cdb47 | 4893 | return ret; |
84940ed8 RC |
4894 | } |
4895 | ||
4896 | static void do_rvae_write(CPUARMState *env, uint64_t value, | |
4897 | int idxmap, bool synced) | |
4898 | { | |
4899 | ARMMMUIdx one_idx = ARM_MMU_IDX_A | ctz32(idxmap); | |
ab1cdb47 | 4900 | TLBIRange range; |
84940ed8 RC |
4901 | int bits; |
4902 | ||
ab1cdb47 RH |
4903 | range = tlbi_aa64_get_range(env, one_idx, value); |
4904 | bits = tlbbits_for_regime(env, one_idx, range.base); | |
84940ed8 RC |
4905 | |
4906 | if (synced) { | |
4907 | tlb_flush_range_by_mmuidx_all_cpus_synced(env_cpu(env), | |
ab1cdb47 RH |
4908 | range.base, |
4909 | range.length, | |
84940ed8 RC |
4910 | idxmap, |
4911 | bits); | |
4912 | } else { | |
ab1cdb47 RH |
4913 | tlb_flush_range_by_mmuidx(env_cpu(env), range.base, |
4914 | range.length, idxmap, bits); | |
84940ed8 RC |
4915 | } |
4916 | } | |
4917 | ||
4918 | static void tlbi_aa64_rvae1_write(CPUARMState *env, | |
4919 | const ARMCPRegInfo *ri, | |
4920 | uint64_t value) | |
4921 | { | |
4922 | /* | |
4923 | * Invalidate by VA range, EL1&0. | |
4924 | * Currently handles all of RVAE1, RVAAE1, RVAALE1 and RVALE1, | |
4925 | * since we don't support flush-for-specific-ASID-only or | |
4926 | * flush-last-level-only. | |
4927 | */ | |
4928 | ||
4929 | do_rvae_write(env, value, vae1_tlbmask(env), | |
4930 | tlb_force_broadcast(env)); | |
4931 | } | |
4932 | ||
4933 | static void tlbi_aa64_rvae1is_write(CPUARMState *env, | |
4934 | const ARMCPRegInfo *ri, | |
4935 | uint64_t value) | |
4936 | { | |
4937 | /* | |
4938 | * Invalidate by VA range, Inner/Outer Shareable EL1&0. | |
4939 | * Currently handles all of RVAE1IS, RVAE1OS, RVAAE1IS, RVAAE1OS, | |
4940 | * RVAALE1IS, RVAALE1OS, RVALE1IS and RVALE1OS, since we don't support | |
4941 | * flush-for-specific-ASID-only, flush-last-level-only or inner/outer | |
4942 | * shareable specific flushes. | |
4943 | */ | |
4944 | ||
4945 | do_rvae_write(env, value, vae1_tlbmask(env), true); | |
4946 | } | |
4947 | ||
4948 | static int vae2_tlbmask(CPUARMState *env) | |
4949 | { | |
d902ae75 | 4950 | return ARMMMUIdxBit_E2; |
84940ed8 RC |
4951 | } |
4952 | ||
4953 | static void tlbi_aa64_rvae2_write(CPUARMState *env, | |
4954 | const ARMCPRegInfo *ri, | |
4955 | uint64_t value) | |
4956 | { | |
4957 | /* | |
4958 | * Invalidate by VA range, EL2. | |
4959 | * Currently handles all of RVAE2 and RVALE2, | |
4960 | * since we don't support flush-for-specific-ASID-only or | |
4961 | * flush-last-level-only. | |
4962 | */ | |
4963 | ||
4964 | do_rvae_write(env, value, vae2_tlbmask(env), | |
4965 | tlb_force_broadcast(env)); | |
4966 | ||
4967 | ||
4968 | } | |
4969 | ||
4970 | static void tlbi_aa64_rvae2is_write(CPUARMState *env, | |
4971 | const ARMCPRegInfo *ri, | |
4972 | uint64_t value) | |
4973 | { | |
4974 | /* | |
4975 | * Invalidate by VA range, Inner/Outer Shareable, EL2. | |
4976 | * Currently handles all of RVAE2IS, RVAE2OS, RVALE2IS and RVALE2OS, | |
4977 | * since we don't support flush-for-specific-ASID-only, | |
4978 | * flush-last-level-only or inner/outer shareable specific flushes. | |
4979 | */ | |
4980 | ||
4981 | do_rvae_write(env, value, vae2_tlbmask(env), true); | |
4982 | ||
4983 | } | |
4984 | ||
4985 | static void tlbi_aa64_rvae3_write(CPUARMState *env, | |
4986 | const ARMCPRegInfo *ri, | |
4987 | uint64_t value) | |
4988 | { | |
4989 | /* | |
4990 | * Invalidate by VA range, EL3. | |
4991 | * Currently handles all of RVAE3 and RVALE3, | |
4992 | * since we don't support flush-for-specific-ASID-only or | |
4993 | * flush-last-level-only. | |
4994 | */ | |
4995 | ||
d902ae75 | 4996 | do_rvae_write(env, value, ARMMMUIdxBit_E3, tlb_force_broadcast(env)); |
84940ed8 RC |
4997 | } |
4998 | ||
4999 | static void tlbi_aa64_rvae3is_write(CPUARMState *env, | |
5000 | const ARMCPRegInfo *ri, | |
5001 | uint64_t value) | |
5002 | { | |
5003 | /* | |
5004 | * Invalidate by VA range, EL3, Inner/Outer Shareable. | |
5005 | * Currently handles all of RVAE3IS, RVAE3OS, RVALE3IS and RVALE3OS, | |
5006 | * since we don't support flush-for-specific-ASID-only, | |
5007 | * flush-last-level-only or inner/outer specific flushes. | |
5008 | */ | |
5009 | ||
d902ae75 | 5010 | do_rvae_write(env, value, ARMMMUIdxBit_E3, true); |
84940ed8 | 5011 | } |
575a94af RH |
5012 | |
5013 | static void tlbi_aa64_ripas2e1_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
5014 | uint64_t value) | |
5015 | { | |
5016 | do_rvae_write(env, value, ipas2e1_tlbmask(env, value), | |
5017 | tlb_force_broadcast(env)); | |
5018 | } | |
5019 | ||
5020 | static void tlbi_aa64_ripas2e1is_write(CPUARMState *env, | |
5021 | const ARMCPRegInfo *ri, | |
5022 | uint64_t value) | |
5023 | { | |
5024 | do_rvae_write(env, value, ipas2e1_tlbmask(env, value), true); | |
5025 | } | |
84940ed8 RC |
5026 | #endif |
5027 | ||
3f208fd7 PM |
5028 | static CPAccessResult aa64_zva_access(CPUARMState *env, const ARMCPRegInfo *ri, |
5029 | bool isread) | |
aca3f40b | 5030 | { |
4351cb72 RH |
5031 | int cur_el = arm_current_el(env); |
5032 | ||
5033 | if (cur_el < 2) { | |
5034 | uint64_t hcr = arm_hcr_el2_eff(env); | |
5035 | ||
5036 | if (cur_el == 0) { | |
5037 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
5038 | if (!(env->cp15.sctlr_el[2] & SCTLR_DZE)) { | |
5039 | return CP_ACCESS_TRAP_EL2; | |
5040 | } | |
5041 | } else { | |
5042 | if (!(env->cp15.sctlr_el[1] & SCTLR_DZE)) { | |
5043 | return CP_ACCESS_TRAP; | |
5044 | } | |
5045 | if (hcr & HCR_TDZ) { | |
5046 | return CP_ACCESS_TRAP_EL2; | |
5047 | } | |
5048 | } | |
5049 | } else if (hcr & HCR_TDZ) { | |
5050 | return CP_ACCESS_TRAP_EL2; | |
5051 | } | |
aca3f40b PM |
5052 | } |
5053 | return CP_ACCESS_OK; | |
5054 | } | |
5055 | ||
5056 | static uint64_t aa64_dczid_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
5057 | { | |
2fc0cc0e | 5058 | ARMCPU *cpu = env_archcpu(env); |
aca3f40b PM |
5059 | int dzp_bit = 1 << 4; |
5060 | ||
5061 | /* DZP indicates whether DC ZVA access is allowed */ | |
3f208fd7 | 5062 | if (aa64_zva_access(env, NULL, false) == CP_ACCESS_OK) { |
aca3f40b PM |
5063 | dzp_bit = 0; |
5064 | } | |
5065 | return cpu->dcz_blocksize | dzp_bit; | |
5066 | } | |
5067 | ||
3f208fd7 PM |
5068 | static CPAccessResult sp_el0_access(CPUARMState *env, const ARMCPRegInfo *ri, |
5069 | bool isread) | |
f502cfc2 | 5070 | { |
cdcf1405 | 5071 | if (!(env->pstate & PSTATE_SP)) { |
9b37a28c FR |
5072 | /* |
5073 | * Access to SP_EL0 is undefined if it's being used as | |
f502cfc2 PM |
5074 | * the stack pointer. |
5075 | */ | |
5076 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
5077 | } | |
5078 | return CP_ACCESS_OK; | |
5079 | } | |
5080 | ||
5081 | static uint64_t spsel_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
5082 | { | |
5083 | return env->pstate & PSTATE_SP; | |
5084 | } | |
5085 | ||
5086 | static void spsel_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) | |
5087 | { | |
5088 | update_spsel(env, val); | |
5089 | } | |
5090 | ||
137feaa9 FA |
5091 | static void sctlr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5092 | uint64_t value) | |
5093 | { | |
2fc0cc0e | 5094 | ARMCPU *cpu = env_archcpu(env); |
137feaa9 | 5095 | |
f00faf13 RH |
5096 | if (arm_feature(env, ARM_FEATURE_PMSA) && !cpu->has_mpu) { |
5097 | /* M bit is RAZ/WI for PMSA with no MPU implemented */ | |
5098 | value &= ~SCTLR_M; | |
5099 | } | |
5100 | ||
5101 | /* ??? Lots of these bits are not implemented. */ | |
5102 | ||
5103 | if (ri->state == ARM_CP_STATE_AA64 && !cpu_isar_feature(aa64_mte, cpu)) { | |
5104 | if (ri->opc1 == 6) { /* SCTLR_EL3 */ | |
5105 | value &= ~(SCTLR_ITFSB | SCTLR_TCF | SCTLR_ATA); | |
5106 | } else { | |
5107 | value &= ~(SCTLR_ITFSB | SCTLR_TCF0 | SCTLR_TCF | | |
5108 | SCTLR_ATA0 | SCTLR_ATA); | |
5109 | } | |
5110 | } | |
5111 | ||
137feaa9 | 5112 | if (raw_read(env, ri) == value) { |
9b37a28c FR |
5113 | /* |
5114 | * Skip the TLB flush if nothing actually changed; Linux likes | |
137feaa9 FA |
5115 | * to do a lot of pointless SCTLR writes. |
5116 | */ | |
5117 | return; | |
5118 | } | |
5119 | ||
5120 | raw_write(env, ri, value); | |
f00faf13 | 5121 | |
137feaa9 | 5122 | /* This may enable/disable the MMU, so do a TLB flush. */ |
d10eb08f | 5123 | tlb_flush(CPU(cpu)); |
2e5dcf36 RH |
5124 | |
5125 | if (ri->type & ARM_CP_SUPPRESS_TB_END) { | |
5126 | /* | |
5127 | * Normally we would always end the TB on an SCTLR write; see the | |
5128 | * comment in ARMCPRegInfo sctlr initialization below for why Xscale | |
5129 | * is special. Setting ARM_CP_SUPPRESS_TB_END also stops the rebuild | |
5130 | * of hflags from the translator, so do it here. | |
5131 | */ | |
5132 | arm_rebuild_hflags(env); | |
5133 | } | |
137feaa9 FA |
5134 | } |
5135 | ||
80d2b43b PM |
5136 | static void mdcr_el3_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5137 | uint64_t value) | |
a8d64e73 | 5138 | { |
01765386 PM |
5139 | /* |
5140 | * Some MDCR_EL3 bits affect whether PMU counters are running: | |
5141 | * if we are trying to change any of those then we must | |
5142 | * bracket this update with PMU start/finish calls. | |
5143 | */ | |
5144 | bool pmu_op = (env->cp15.mdcr_el3 ^ value) & MDCR_EL3_PMU_ENABLE_BITS; | |
5145 | ||
5146 | if (pmu_op) { | |
5147 | pmu_op_start(env); | |
5148 | } | |
80d2b43b | 5149 | env->cp15.mdcr_el3 = value; |
01765386 PM |
5150 | if (pmu_op) { |
5151 | pmu_op_finish(env); | |
5152 | } | |
5153 | } | |
5154 | ||
80d2b43b PM |
5155 | static void sdcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5156 | uint64_t value) | |
5157 | { | |
5158 | /* Not all bits defined for MDCR_EL3 exist in the AArch32 SDCR */ | |
5159 | mdcr_el3_write(env, ri, value & SDCR_VALID_MASK); | |
5160 | } | |
5161 | ||
01765386 PM |
5162 | static void mdcr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5163 | uint64_t value) | |
5164 | { | |
5165 | /* | |
5166 | * Some MDCR_EL2 bits affect whether PMU counters are running: | |
5167 | * if we are trying to change any of those then we must | |
5168 | * bracket this update with PMU start/finish calls. | |
5169 | */ | |
5170 | bool pmu_op = (env->cp15.mdcr_el2 ^ value) & MDCR_EL2_PMU_ENABLE_BITS; | |
5171 | ||
5172 | if (pmu_op) { | |
5173 | pmu_op_start(env); | |
5174 | } | |
5175 | env->cp15.mdcr_el2 = value; | |
5176 | if (pmu_op) { | |
5177 | pmu_op_finish(env); | |
5178 | } | |
a8d64e73 PM |
5179 | } |
5180 | ||
b0d2b7d0 | 5181 | static const ARMCPRegInfo v8_cp_reginfo[] = { |
9b37a28c FR |
5182 | /* |
5183 | * Minimal set of EL0-visible registers. This will need to be expanded | |
b0d2b7d0 PM |
5184 | * significantly for system emulation of AArch64 CPUs. |
5185 | */ | |
5186 | { .name = "NZCV", .state = ARM_CP_STATE_AA64, | |
5187 | .opc0 = 3, .opc1 = 3, .opc2 = 0, .crn = 4, .crm = 2, | |
5188 | .access = PL0_RW, .type = ARM_CP_NZCV }, | |
c2b820fe PM |
5189 | { .name = "DAIF", .state = ARM_CP_STATE_AA64, |
5190 | .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 4, .crm = 2, | |
7a0e58fa | 5191 | .type = ARM_CP_NO_RAW, |
c2b820fe PM |
5192 | .access = PL0_RW, .accessfn = aa64_daif_access, |
5193 | .fieldoffset = offsetof(CPUARMState, daif), | |
5194 | .writefn = aa64_daif_write, .resetfn = arm_cp_reset_ignore }, | |
b0d2b7d0 PM |
5195 | { .name = "FPCR", .state = ARM_CP_STATE_AA64, |
5196 | .opc0 = 3, .opc1 = 3, .opc2 = 0, .crn = 4, .crm = 4, | |
b916c9c3 | 5197 | .access = PL0_RW, .type = ARM_CP_FPU | ARM_CP_SUPPRESS_TB_END, |
fe03d45f | 5198 | .readfn = aa64_fpcr_read, .writefn = aa64_fpcr_write }, |
b0d2b7d0 PM |
5199 | { .name = "FPSR", .state = ARM_CP_STATE_AA64, |
5200 | .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 4, .crm = 4, | |
b916c9c3 | 5201 | .access = PL0_RW, .type = ARM_CP_FPU | ARM_CP_SUPPRESS_TB_END, |
fe03d45f | 5202 | .readfn = aa64_fpsr_read, .writefn = aa64_fpsr_write }, |
b0d2b7d0 PM |
5203 | { .name = "DCZID_EL0", .state = ARM_CP_STATE_AA64, |
5204 | .opc0 = 3, .opc1 = 3, .opc2 = 7, .crn = 0, .crm = 0, | |
7a0e58fa | 5205 | .access = PL0_R, .type = ARM_CP_NO_RAW, |
aca3f40b PM |
5206 | .readfn = aa64_dczid_read }, |
5207 | { .name = "DC_ZVA", .state = ARM_CP_STATE_AA64, | |
5208 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 1, | |
5209 | .access = PL0_W, .type = ARM_CP_DC_ZVA, | |
5210 | #ifndef CONFIG_USER_ONLY | |
5211 | /* Avoid overhead of an access check that always passes in user-mode */ | |
5212 | .accessfn = aa64_zva_access, | |
5213 | #endif | |
5214 | }, | |
0eef9d98 PM |
5215 | { .name = "CURRENTEL", .state = ARM_CP_STATE_AA64, |
5216 | .opc0 = 3, .opc1 = 0, .opc2 = 2, .crn = 4, .crm = 2, | |
5217 | .access = PL1_R, .type = ARM_CP_CURRENTEL }, | |
8af35c37 PM |
5218 | /* Cache ops: all NOPs since we don't emulate caches */ |
5219 | { .name = "IC_IALLUIS", .state = ARM_CP_STATE_AA64, | |
5220 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 0, | |
38262d8a | 5221 | .access = PL1_W, .type = ARM_CP_NOP, |
2d3ce4c6 | 5222 | .accessfn = access_ticab }, |
8af35c37 PM |
5223 | { .name = "IC_IALLU", .state = ARM_CP_STATE_AA64, |
5224 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 0, | |
38262d8a | 5225 | .access = PL1_W, .type = ARM_CP_NOP, |
2d3ce4c6 | 5226 | .accessfn = access_tocu }, |
8af35c37 PM |
5227 | { .name = "IC_IVAU", .state = ARM_CP_STATE_AA64, |
5228 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 5, .opc2 = 1, | |
5229 | .access = PL0_W, .type = ARM_CP_NOP, | |
2d3ce4c6 | 5230 | .accessfn = access_tocu }, |
8af35c37 PM |
5231 | { .name = "DC_IVAC", .state = ARM_CP_STATE_AA64, |
5232 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 1, | |
1bed4d2e RH |
5233 | .access = PL1_W, .accessfn = aa64_cacheop_poc_access, |
5234 | .type = ARM_CP_NOP }, | |
8af35c37 PM |
5235 | { .name = "DC_ISW", .state = ARM_CP_STATE_AA64, |
5236 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2, | |
1803d271 | 5237 | .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, |
8af35c37 PM |
5238 | { .name = "DC_CVAC", .state = ARM_CP_STATE_AA64, |
5239 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 1, | |
5240 | .access = PL0_W, .type = ARM_CP_NOP, | |
1bed4d2e | 5241 | .accessfn = aa64_cacheop_poc_access }, |
8af35c37 PM |
5242 | { .name = "DC_CSW", .state = ARM_CP_STATE_AA64, |
5243 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2, | |
1803d271 | 5244 | .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, |
8af35c37 PM |
5245 | { .name = "DC_CVAU", .state = ARM_CP_STATE_AA64, |
5246 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 11, .opc2 = 1, | |
5247 | .access = PL0_W, .type = ARM_CP_NOP, | |
2d3ce4c6 | 5248 | .accessfn = access_tocu }, |
8af35c37 PM |
5249 | { .name = "DC_CIVAC", .state = ARM_CP_STATE_AA64, |
5250 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 1, | |
5251 | .access = PL0_W, .type = ARM_CP_NOP, | |
1bed4d2e | 5252 | .accessfn = aa64_cacheop_poc_access }, |
8af35c37 PM |
5253 | { .name = "DC_CISW", .state = ARM_CP_STATE_AA64, |
5254 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2, | |
1803d271 | 5255 | .access = PL1_W, .accessfn = access_tsw, .type = ARM_CP_NOP }, |
168aa23b PM |
5256 | /* TLBI operations */ |
5257 | { .name = "TLBI_VMALLE1IS", .state = ARM_CP_STATE_AA64, | |
6ab9f499 | 5258 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 0, |
0f66d223 | 5259 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5260 | .writefn = tlbi_aa64_vmalle1is_write }, |
168aa23b | 5261 | { .name = "TLBI_VAE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5262 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 1, |
0f66d223 | 5263 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5264 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5265 | { .name = "TLBI_ASIDE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5266 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 2, |
0f66d223 | 5267 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5268 | .writefn = tlbi_aa64_vmalle1is_write }, |
168aa23b | 5269 | { .name = "TLBI_VAAE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5270 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 3, |
0f66d223 | 5271 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5272 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5273 | { .name = "TLBI_VALE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5274 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5, |
0f66d223 | 5275 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5276 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5277 | { .name = "TLBI_VAALE1IS", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5278 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 7, |
0f66d223 | 5279 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5280 | .writefn = tlbi_aa64_vae1is_write }, |
168aa23b | 5281 | { .name = "TLBI_VMALLE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5282 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 0, |
30881b73 | 5283 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5284 | .writefn = tlbi_aa64_vmalle1_write }, |
168aa23b | 5285 | { .name = "TLBI_VAE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5286 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 1, |
30881b73 | 5287 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5288 | .writefn = tlbi_aa64_vae1_write }, |
168aa23b | 5289 | { .name = "TLBI_ASIDE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5290 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 2, |
30881b73 | 5291 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5292 | .writefn = tlbi_aa64_vmalle1_write }, |
168aa23b | 5293 | { .name = "TLBI_VAAE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5294 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 3, |
30881b73 | 5295 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5296 | .writefn = tlbi_aa64_vae1_write }, |
168aa23b | 5297 | { .name = "TLBI_VALE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5298 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 5, |
30881b73 | 5299 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5300 | .writefn = tlbi_aa64_vae1_write }, |
168aa23b | 5301 | { .name = "TLBI_VAALE1", .state = ARM_CP_STATE_AA64, |
6ab9f499 | 5302 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 7, |
30881b73 | 5303 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
fd3ed969 | 5304 | .writefn = tlbi_aa64_vae1_write }, |
cea66e91 PM |
5305 | { .name = "TLBI_IPAS2E1IS", .state = ARM_CP_STATE_AA64, |
5306 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 1, | |
575a94af RH |
5307 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5308 | .writefn = tlbi_aa64_ipas2e1is_write }, | |
cea66e91 PM |
5309 | { .name = "TLBI_IPAS2LE1IS", .state = ARM_CP_STATE_AA64, |
5310 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 5, | |
575a94af RH |
5311 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5312 | .writefn = tlbi_aa64_ipas2e1is_write }, | |
83ddf975 PM |
5313 | { .name = "TLBI_ALLE1IS", .state = ARM_CP_STATE_AA64, |
5314 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 4, | |
5315 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
fd3ed969 | 5316 | .writefn = tlbi_aa64_alle1is_write }, |
43efaa33 PM |
5317 | { .name = "TLBI_VMALLS12E1IS", .state = ARM_CP_STATE_AA64, |
5318 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 6, | |
5319 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
5320 | .writefn = tlbi_aa64_alle1is_write }, | |
cea66e91 PM |
5321 | { .name = "TLBI_IPAS2E1", .state = ARM_CP_STATE_AA64, |
5322 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 1, | |
575a94af RH |
5323 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5324 | .writefn = tlbi_aa64_ipas2e1_write }, | |
cea66e91 PM |
5325 | { .name = "TLBI_IPAS2LE1", .state = ARM_CP_STATE_AA64, |
5326 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 5, | |
575a94af RH |
5327 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
5328 | .writefn = tlbi_aa64_ipas2e1_write }, | |
83ddf975 PM |
5329 | { .name = "TLBI_ALLE1", .state = ARM_CP_STATE_AA64, |
5330 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 4, | |
5331 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
fd3ed969 | 5332 | .writefn = tlbi_aa64_alle1_write }, |
43efaa33 PM |
5333 | { .name = "TLBI_VMALLS12E1", .state = ARM_CP_STATE_AA64, |
5334 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 6, | |
5335 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
5336 | .writefn = tlbi_aa64_alle1is_write }, | |
19525524 PM |
5337 | #ifndef CONFIG_USER_ONLY |
5338 | /* 64 bit address translation operations */ | |
5339 | { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, | |
5340 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 0, | |
0710b2fa PM |
5341 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5342 | .writefn = ats_write64 }, | |
19525524 PM |
5343 | { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, |
5344 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 1, | |
0710b2fa PM |
5345 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5346 | .writefn = ats_write64 }, | |
19525524 PM |
5347 | { .name = "AT_S1E0R", .state = ARM_CP_STATE_AA64, |
5348 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 2, | |
0710b2fa PM |
5349 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5350 | .writefn = ats_write64 }, | |
19525524 PM |
5351 | { .name = "AT_S1E0W", .state = ARM_CP_STATE_AA64, |
5352 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 8, .opc2 = 3, | |
0710b2fa PM |
5353 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5354 | .writefn = ats_write64 }, | |
2a47df95 | 5355 | { .name = "AT_S12E1R", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5356 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 4, |
0710b2fa PM |
5357 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5358 | .writefn = ats_write64 }, | |
2a47df95 | 5359 | { .name = "AT_S12E1W", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5360 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 5, |
0710b2fa PM |
5361 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5362 | .writefn = ats_write64 }, | |
2a47df95 | 5363 | { .name = "AT_S12E0R", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5364 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 6, |
0710b2fa PM |
5365 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5366 | .writefn = ats_write64 }, | |
2a47df95 | 5367 | { .name = "AT_S12E0W", .state = ARM_CP_STATE_AA64, |
7a379c7e | 5368 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 7, |
0710b2fa PM |
5369 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5370 | .writefn = ats_write64 }, | |
2a47df95 PM |
5371 | /* AT S1E2* are elsewhere as they UNDEF from EL3 if EL2 is not present */ |
5372 | { .name = "AT_S1E3R", .state = ARM_CP_STATE_AA64, | |
5373 | .opc0 = 1, .opc1 = 6, .crn = 7, .crm = 8, .opc2 = 0, | |
0710b2fa PM |
5374 | .access = PL3_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5375 | .writefn = ats_write64 }, | |
2a47df95 PM |
5376 | { .name = "AT_S1E3W", .state = ARM_CP_STATE_AA64, |
5377 | .opc0 = 1, .opc1 = 6, .crn = 7, .crm = 8, .opc2 = 1, | |
0710b2fa PM |
5378 | .access = PL3_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, |
5379 | .writefn = ats_write64 }, | |
c96fc9b5 EI |
5380 | { .name = "PAR_EL1", .state = ARM_CP_STATE_AA64, |
5381 | .type = ARM_CP_ALIAS, | |
5382 | .opc0 = 3, .opc1 = 0, .crn = 7, .crm = 4, .opc2 = 0, | |
5383 | .access = PL1_RW, .resetvalue = 0, | |
5384 | .fieldoffset = offsetof(CPUARMState, cp15.par_el[1]), | |
5385 | .writefn = par_write }, | |
19525524 | 5386 | #endif |
995939a6 | 5387 | /* TLB invalidate last level of translation table walk */ |
9449fdf6 | 5388 | { .name = "TLBIMVALIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 5, |
0f66d223 | 5389 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
30881b73 | 5390 | .writefn = tlbimva_is_write }, |
9449fdf6 | 5391 | { .name = "TLBIMVAALIS", .cp = 15, .opc1 = 0, .crn = 8, .crm = 3, .opc2 = 7, |
0f66d223 | 5392 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlbis, |
fa439fc5 | 5393 | .writefn = tlbimvaa_is_write }, |
9449fdf6 | 5394 | { .name = "TLBIMVAL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 5, |
30881b73 RH |
5395 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
5396 | .writefn = tlbimva_write }, | |
9449fdf6 | 5397 | { .name = "TLBIMVAAL", .cp = 15, .opc1 = 0, .crn = 8, .crm = 7, .opc2 = 7, |
30881b73 RH |
5398 | .type = ARM_CP_NO_RAW, .access = PL1_W, .accessfn = access_ttlb, |
5399 | .writefn = tlbimvaa_write }, | |
541ef8c2 SS |
5400 | { .name = "TLBIMVALH", .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 5, |
5401 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5402 | .writefn = tlbimva_hyp_write }, | |
5403 | { .name = "TLBIMVALHIS", | |
5404 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 5, | |
5405 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5406 | .writefn = tlbimva_hyp_is_write }, | |
5407 | { .name = "TLBIIPAS2", | |
5408 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 1, | |
575a94af RH |
5409 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5410 | .writefn = tlbiipas2_hyp_write }, | |
541ef8c2 SS |
5411 | { .name = "TLBIIPAS2IS", |
5412 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 1, | |
575a94af RH |
5413 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5414 | .writefn = tlbiipas2is_hyp_write }, | |
541ef8c2 SS |
5415 | { .name = "TLBIIPAS2L", |
5416 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 5, | |
575a94af RH |
5417 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5418 | .writefn = tlbiipas2_hyp_write }, | |
541ef8c2 SS |
5419 | { .name = "TLBIIPAS2LIS", |
5420 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 5, | |
575a94af RH |
5421 | .type = ARM_CP_NO_RAW, .access = PL2_W, |
5422 | .writefn = tlbiipas2is_hyp_write }, | |
9449fdf6 PM |
5423 | /* 32 bit cache operations */ |
5424 | { .name = "ICIALLUIS", .cp = 15, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 0, | |
2d3ce4c6 | 5425 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_ticab }, |
9449fdf6 PM |
5426 | { .name = "BPIALLUIS", .cp = 15, .opc1 = 0, .crn = 7, .crm = 1, .opc2 = 6, |
5427 | .type = ARM_CP_NOP, .access = PL1_W }, | |
5428 | { .name = "ICIALLU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 0, | |
2d3ce4c6 | 5429 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tocu }, |
9449fdf6 | 5430 | { .name = "ICIMVAU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 1, |
2d3ce4c6 | 5431 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tocu }, |
9449fdf6 PM |
5432 | { .name = "BPIALL", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 6, |
5433 | .type = ARM_CP_NOP, .access = PL1_W }, | |
5434 | { .name = "BPIMVA", .cp = 15, .opc1 = 0, .crn = 7, .crm = 5, .opc2 = 7, | |
5435 | .type = ARM_CP_NOP, .access = PL1_W }, | |
5436 | { .name = "DCIMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 1, | |
1bed4d2e | 5437 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = aa64_cacheop_poc_access }, |
9449fdf6 | 5438 | { .name = "DCISW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 2, |
1803d271 | 5439 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, |
9449fdf6 | 5440 | { .name = "DCCMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 1, |
1bed4d2e | 5441 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = aa64_cacheop_poc_access }, |
9449fdf6 | 5442 | { .name = "DCCSW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 2, |
1803d271 | 5443 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, |
9449fdf6 | 5444 | { .name = "DCCMVAU", .cp = 15, .opc1 = 0, .crn = 7, .crm = 11, .opc2 = 1, |
2d3ce4c6 | 5445 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tocu }, |
9449fdf6 | 5446 | { .name = "DCCIMVAC", .cp = 15, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 1, |
1bed4d2e | 5447 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = aa64_cacheop_poc_access }, |
9449fdf6 | 5448 | { .name = "DCCISW", .cp = 15, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 2, |
1803d271 | 5449 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, |
9449fdf6 | 5450 | /* MMU Domain access control / MPU write buffer control */ |
0c17d68c | 5451 | { .name = "DACR", .cp = 15, .opc1 = 0, .crn = 3, .crm = 0, .opc2 = 0, |
84929218 | 5452 | .access = PL1_RW, .accessfn = access_tvm_trvm, .resetvalue = 0, |
0c17d68c FA |
5453 | .writefn = dacr_write, .raw_writefn = raw_write, |
5454 | .bank_fieldoffsets = { offsetoflow32(CPUARMState, cp15.dacr_s), | |
5455 | offsetoflow32(CPUARMState, cp15.dacr_ns) } }, | |
a0618a19 | 5456 | { .name = "ELR_EL1", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5457 | .type = ARM_CP_ALIAS, |
a0618a19 | 5458 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 0, .opc2 = 1, |
6947f059 EI |
5459 | .access = PL1_RW, |
5460 | .fieldoffset = offsetof(CPUARMState, elr_el[1]) }, | |
a65f1de9 | 5461 | { .name = "SPSR_EL1", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5462 | .type = ARM_CP_ALIAS, |
a65f1de9 | 5463 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 0, .opc2 = 0, |
99a99c1f SB |
5464 | .access = PL1_RW, |
5465 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_SVC]) }, | |
9b37a28c FR |
5466 | /* |
5467 | * We rely on the access checks not allowing the guest to write to the | |
f502cfc2 PM |
5468 | * state field when SPSel indicates that it's being used as the stack |
5469 | * pointer. | |
5470 | */ | |
5471 | { .name = "SP_EL0", .state = ARM_CP_STATE_AA64, | |
5472 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 1, .opc2 = 0, | |
5473 | .access = PL1_RW, .accessfn = sp_el0_access, | |
7a0e58fa | 5474 | .type = ARM_CP_ALIAS, |
f502cfc2 | 5475 | .fieldoffset = offsetof(CPUARMState, sp_el[0]) }, |
884b4dee GB |
5476 | { .name = "SP_EL1", .state = ARM_CP_STATE_AA64, |
5477 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 1, .opc2 = 0, | |
beeec926 | 5478 | .access = PL2_RW, .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_KEEP, |
884b4dee | 5479 | .fieldoffset = offsetof(CPUARMState, sp_el[1]) }, |
f502cfc2 PM |
5480 | { .name = "SPSel", .state = ARM_CP_STATE_AA64, |
5481 | .opc0 = 3, .opc1 = 0, .crn = 4, .crm = 2, .opc2 = 0, | |
7a0e58fa | 5482 | .type = ARM_CP_NO_RAW, |
f502cfc2 | 5483 | .access = PL1_RW, .readfn = spsel_read, .writefn = spsel_write }, |
03fbf20f PM |
5484 | { .name = "FPEXC32_EL2", .state = ARM_CP_STATE_AA64, |
5485 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 3, .opc2 = 0, | |
696ba377 RH |
5486 | .access = PL2_RW, |
5487 | .type = ARM_CP_ALIAS | ARM_CP_FPU | ARM_CP_EL3_NO_EL2_KEEP, | |
a4c88675 | 5488 | .fieldoffset = offsetof(CPUARMState, vfp.xregs[ARM_VFP_FPEXC]) }, |
6a43e0b6 PM |
5489 | { .name = "DACR32_EL2", .state = ARM_CP_STATE_AA64, |
5490 | .opc0 = 3, .opc1 = 4, .crn = 3, .crm = 0, .opc2 = 0, | |
696ba377 | 5491 | .access = PL2_RW, .resetvalue = 0, .type = ARM_CP_EL3_NO_EL2_KEEP, |
6a43e0b6 PM |
5492 | .writefn = dacr_write, .raw_writefn = raw_write, |
5493 | .fieldoffset = offsetof(CPUARMState, cp15.dacr32_el2) }, | |
5494 | { .name = "IFSR32_EL2", .state = ARM_CP_STATE_AA64, | |
5495 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 0, .opc2 = 1, | |
696ba377 | 5496 | .access = PL2_RW, .resetvalue = 0, .type = ARM_CP_EL3_NO_EL2_KEEP, |
6a43e0b6 PM |
5497 | .fieldoffset = offsetof(CPUARMState, cp15.ifsr32_el2) }, |
5498 | { .name = "SPSR_IRQ", .state = ARM_CP_STATE_AA64, | |
5499 | .type = ARM_CP_ALIAS, | |
5500 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 0, | |
5501 | .access = PL2_RW, | |
5502 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_IRQ]) }, | |
5503 | { .name = "SPSR_ABT", .state = ARM_CP_STATE_AA64, | |
5504 | .type = ARM_CP_ALIAS, | |
5505 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 1, | |
5506 | .access = PL2_RW, | |
5507 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_ABT]) }, | |
5508 | { .name = "SPSR_UND", .state = ARM_CP_STATE_AA64, | |
5509 | .type = ARM_CP_ALIAS, | |
5510 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 2, | |
5511 | .access = PL2_RW, | |
5512 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_UND]) }, | |
5513 | { .name = "SPSR_FIQ", .state = ARM_CP_STATE_AA64, | |
5514 | .type = ARM_CP_ALIAS, | |
5515 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 3, .opc2 = 3, | |
5516 | .access = PL2_RW, | |
5517 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_FIQ]) }, | |
a8d64e73 | 5518 | { .name = "MDCR_EL3", .state = ARM_CP_STATE_AA64, |
80d2b43b | 5519 | .type = ARM_CP_IO, |
a8d64e73 PM |
5520 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 3, .opc2 = 1, |
5521 | .resetvalue = 0, | |
80d2b43b PM |
5522 | .access = PL3_RW, |
5523 | .writefn = mdcr_el3_write, | |
5524 | .fieldoffset = offsetof(CPUARMState, cp15.mdcr_el3) }, | |
7f4fbfb5 | 5525 | { .name = "SDCR", .type = ARM_CP_ALIAS | ARM_CP_IO, |
a8d64e73 PM |
5526 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 3, .opc2 = 1, |
5527 | .access = PL1_RW, .accessfn = access_trap_aa32s_el1, | |
5528 | .writefn = sdcr_write, | |
5529 | .fieldoffset = offsetoflow32(CPUARMState, cp15.mdcr_el3) }, | |
b0d2b7d0 PM |
5530 | }; |
5531 | ||
d1fb4da2 | 5532 | static void do_hcr_write(CPUARMState *env, uint64_t value, uint64_t valid_mask) |
f149e3e8 | 5533 | { |
2fc0cc0e | 5534 | ARMCPU *cpu = env_archcpu(env); |
d1fb4da2 RH |
5535 | |
5536 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
5537 | valid_mask |= MAKE_64BIT_MASK(0, 34); /* ARMv8.0 */ | |
5538 | } else { | |
5539 | valid_mask |= MAKE_64BIT_MASK(0, 28); /* ARMv7VE */ | |
5540 | } | |
f149e3e8 EI |
5541 | |
5542 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
5543 | valid_mask &= ~HCR_HCD; | |
77077a83 | 5544 | } else if (cpu->psci_conduit != QEMU_PSCI_CONDUIT_SMC) { |
9b37a28c FR |
5545 | /* |
5546 | * Architecturally HCR.TSC is RES0 if EL3 is not implemented. | |
77077a83 JK |
5547 | * However, if we're using the SMC PSCI conduit then QEMU is |
5548 | * effectively acting like EL3 firmware and so the guest at | |
5549 | * EL2 should retain the ability to prevent EL1 from being | |
5550 | * able to make SMC calls into the ersatz firmware, so in | |
5551 | * that case HCR.TSC should be read/write. | |
5552 | */ | |
f149e3e8 EI |
5553 | valid_mask &= ~HCR_TSC; |
5554 | } | |
d1fb4da2 RH |
5555 | |
5556 | if (arm_feature(env, ARM_FEATURE_AARCH64)) { | |
5557 | if (cpu_isar_feature(aa64_vh, cpu)) { | |
5558 | valid_mask |= HCR_E2H; | |
5559 | } | |
da3d8b13 RH |
5560 | if (cpu_isar_feature(aa64_ras, cpu)) { |
5561 | valid_mask |= HCR_TERR | HCR_TEA; | |
5562 | } | |
d1fb4da2 RH |
5563 | if (cpu_isar_feature(aa64_lor, cpu)) { |
5564 | valid_mask |= HCR_TLOR; | |
5565 | } | |
5566 | if (cpu_isar_feature(aa64_pauth, cpu)) { | |
5567 | valid_mask |= HCR_API | HCR_APK; | |
5568 | } | |
8ddb300b RH |
5569 | if (cpu_isar_feature(aa64_mte, cpu)) { |
5570 | valid_mask |= HCR_ATA | HCR_DCT | HCR_TID5; | |
5571 | } | |
7cb1e618 RH |
5572 | if (cpu_isar_feature(aa64_scxtnum, cpu)) { |
5573 | valid_mask |= HCR_ENSCXT; | |
5574 | } | |
8c7e17ef PM |
5575 | if (cpu_isar_feature(aa64_fwb, cpu)) { |
5576 | valid_mask |= HCR_FWB; | |
5577 | } | |
ef682cdb | 5578 | } |
f149e3e8 | 5579 | |
d2fd9313 PM |
5580 | if (cpu_isar_feature(any_evt, cpu)) { |
5581 | valid_mask |= HCR_TTLBIS | HCR_TTLBOS | HCR_TICAB | HCR_TOCU | HCR_TID4; | |
5582 | } else if (cpu_isar_feature(any_half_evt, cpu)) { | |
5583 | valid_mask |= HCR_TICAB | HCR_TOCU | HCR_TID4; | |
5584 | } | |
5585 | ||
f149e3e8 EI |
5586 | /* Clear RES0 bits. */ |
5587 | value &= valid_mask; | |
5588 | ||
8ddb300b RH |
5589 | /* |
5590 | * These bits change the MMU setup: | |
f149e3e8 EI |
5591 | * HCR_VM enables stage 2 translation |
5592 | * HCR_PTW forbids certain page-table setups | |
8ddb300b RH |
5593 | * HCR_DC disables stage1 and enables stage2 translation |
5594 | * HCR_DCT enables tagging on (disabled) stage1 translation | |
8c7e17ef | 5595 | * HCR_FWB changes the interpretation of stage2 descriptor bits |
f149e3e8 | 5596 | */ |
8c7e17ef PM |
5597 | if ((env->cp15.hcr_el2 ^ value) & |
5598 | (HCR_VM | HCR_PTW | HCR_DC | HCR_DCT | HCR_FWB)) { | |
d10eb08f | 5599 | tlb_flush(CPU(cpu)); |
f149e3e8 | 5600 | } |
ce4afed8 | 5601 | env->cp15.hcr_el2 = value; |
89430fc6 PM |
5602 | |
5603 | /* | |
5604 | * Updates to VI and VF require us to update the status of | |
5605 | * virtual interrupts, which are the logical OR of these bits | |
5606 | * and the state of the input lines from the GIC. (This requires | |
5607 | * that we have the iothread lock, which is done by marking the | |
5608 | * reginfo structs as ARM_CP_IO.) | |
5609 | * Note that if a write to HCR pends a VIRQ or VFIQ it is never | |
5610 | * possible for it to be taken immediately, because VIRQ and | |
5611 | * VFIQ are masked unless running at EL0 or EL1, and HCR | |
5612 | * can only be written at EL2. | |
5613 | */ | |
5614 | g_assert(qemu_mutex_iothread_locked()); | |
5615 | arm_cpu_update_virq(cpu); | |
5616 | arm_cpu_update_vfiq(cpu); | |
3c29632f | 5617 | arm_cpu_update_vserr(cpu); |
ce4afed8 PM |
5618 | } |
5619 | ||
d1fb4da2 RH |
5620 | static void hcr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t value) |
5621 | { | |
5622 | do_hcr_write(env, value, 0); | |
5623 | } | |
5624 | ||
ce4afed8 PM |
5625 | static void hcr_writehigh(CPUARMState *env, const ARMCPRegInfo *ri, |
5626 | uint64_t value) | |
5627 | { | |
5628 | /* Handle HCR2 write, i.e. write to high half of HCR_EL2 */ | |
5629 | value = deposit64(env->cp15.hcr_el2, 32, 32, value); | |
d1fb4da2 | 5630 | do_hcr_write(env, value, MAKE_64BIT_MASK(0, 32)); |
ce4afed8 PM |
5631 | } |
5632 | ||
5633 | static void hcr_writelow(CPUARMState *env, const ARMCPRegInfo *ri, | |
5634 | uint64_t value) | |
5635 | { | |
5636 | /* Handle HCR write, i.e. write to low half of HCR_EL2 */ | |
5637 | value = deposit64(env->cp15.hcr_el2, 0, 32, value); | |
d1fb4da2 | 5638 | do_hcr_write(env, value, MAKE_64BIT_MASK(32, 32)); |
f149e3e8 EI |
5639 | } |
5640 | ||
f7778444 | 5641 | /* |
b74c0443 | 5642 | * Return the effective value of HCR_EL2, at the given security state. |
f7778444 RH |
5643 | * Bits that are not included here: |
5644 | * RW (read from SCR_EL3.RW as needed) | |
5645 | */ | |
b74c0443 | 5646 | uint64_t arm_hcr_el2_eff_secstate(CPUARMState *env, bool secure) |
f7778444 RH |
5647 | { |
5648 | uint64_t ret = env->cp15.hcr_el2; | |
5649 | ||
b74c0443 | 5650 | if (!arm_is_el2_enabled_secstate(env, secure)) { |
f7778444 RH |
5651 | /* |
5652 | * "This register has no effect if EL2 is not enabled in the | |
5653 | * current Security state". This is ARMv8.4-SecEL2 speak for | |
5654 | * !(SCR_EL3.NS==1 || SCR_EL3.EEL2==1). | |
5655 | * | |
5656 | * Prior to that, the language was "In an implementation that | |
5657 | * includes EL3, when the value of SCR_EL3.NS is 0 the PE behaves | |
5658 | * as if this field is 0 for all purposes other than a direct | |
5659 | * read or write access of HCR_EL2". With lots of enumeration | |
5660 | * on a per-field basis. In current QEMU, this is condition | |
5661 | * is arm_is_secure_below_el3. | |
5662 | * | |
5663 | * Since the v8.4 language applies to the entire register, and | |
5664 | * appears to be backward compatible, use that. | |
5665 | */ | |
4990e1d3 RH |
5666 | return 0; |
5667 | } | |
5668 | ||
5669 | /* | |
5670 | * For a cpu that supports both aarch64 and aarch32, we can set bits | |
5671 | * in HCR_EL2 (e.g. via EL3) that are RES0 when we enter EL2 as aa32. | |
5672 | * Ignore all of the bits in HCR+HCR2 that are not valid for aarch32. | |
5673 | */ | |
5674 | if (!arm_el_is_aa64(env, 2)) { | |
5675 | uint64_t aa32_valid; | |
5676 | ||
5677 | /* | |
5678 | * These bits are up-to-date as of ARMv8.6. | |
5679 | * For HCR, it's easiest to list just the 2 bits that are invalid. | |
5680 | * For HCR2, list those that are valid. | |
5681 | */ | |
5682 | aa32_valid = MAKE_64BIT_MASK(0, 32) & ~(HCR_RW | HCR_TDZ); | |
5683 | aa32_valid |= (HCR_CD | HCR_ID | HCR_TERR | HCR_TEA | HCR_MIOCNCE | | |
5684 | HCR_TID4 | HCR_TICAB | HCR_TOCU | HCR_TTLBIS); | |
5685 | ret &= aa32_valid; | |
5686 | } | |
5687 | ||
5688 | if (ret & HCR_TGE) { | |
5689 | /* These bits are up-to-date as of ARMv8.6. */ | |
f7778444 RH |
5690 | if (ret & HCR_E2H) { |
5691 | ret &= ~(HCR_VM | HCR_FMO | HCR_IMO | HCR_AMO | | |
5692 | HCR_BSU_MASK | HCR_DC | HCR_TWI | HCR_TWE | | |
5693 | HCR_TID0 | HCR_TID2 | HCR_TPCP | HCR_TPU | | |
4990e1d3 RH |
5694 | HCR_TDZ | HCR_CD | HCR_ID | HCR_MIOCNCE | |
5695 | HCR_TID4 | HCR_TICAB | HCR_TOCU | HCR_ENSCXT | | |
5696 | HCR_TTLBIS | HCR_TTLBOS | HCR_TID5); | |
f7778444 RH |
5697 | } else { |
5698 | ret |= HCR_FMO | HCR_IMO | HCR_AMO; | |
5699 | } | |
5700 | ret &= ~(HCR_SWIO | HCR_PTW | HCR_VF | HCR_VI | HCR_VSE | | |
5701 | HCR_FB | HCR_TID1 | HCR_TID3 | HCR_TSC | HCR_TACR | | |
5702 | HCR_TSW | HCR_TTLB | HCR_TVM | HCR_HCD | HCR_TRVM | | |
5703 | HCR_TLOR); | |
5704 | } | |
5705 | ||
5706 | return ret; | |
5707 | } | |
5708 | ||
b74c0443 RH |
5709 | uint64_t arm_hcr_el2_eff(CPUARMState *env) |
5710 | { | |
5711 | return arm_hcr_el2_eff_secstate(env, arm_is_secure_below_el3(env)); | |
5712 | } | |
5713 | ||
19668718 RH |
5714 | /* |
5715 | * Corresponds to ARM pseudocode function ELIsInHost(). | |
5716 | */ | |
5717 | bool el_is_in_host(CPUARMState *env, int el) | |
5718 | { | |
5719 | uint64_t mask; | |
5720 | ||
5721 | /* | |
5722 | * Since we only care about E2H and TGE, we can skip arm_hcr_el2_eff(). | |
5723 | * Perform the simplest bit tests first, and validate EL2 afterward. | |
5724 | */ | |
5725 | if (el & 1) { | |
5726 | return false; /* EL1 or EL3 */ | |
5727 | } | |
5728 | ||
5729 | /* | |
5730 | * Note that hcr_write() checks isar_feature_aa64_vh(), | |
5731 | * aka HaveVirtHostExt(), in allowing HCR_E2H to be set. | |
5732 | */ | |
5733 | mask = el ? HCR_E2H : HCR_E2H | HCR_TGE; | |
5734 | if ((env->cp15.hcr_el2 & mask) != mask) { | |
5735 | return false; | |
5736 | } | |
5737 | ||
5738 | /* TGE and/or E2H set: double check those bits are currently legal. */ | |
5739 | return arm_is_el2_enabled(env) && arm_el_is_aa64(env, 2); | |
5740 | } | |
5741 | ||
5814d587 RH |
5742 | static void hcrx_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5743 | uint64_t value) | |
5744 | { | |
5745 | uint64_t valid_mask = 0; | |
5746 | ||
5747 | /* No features adding bits to HCRX are implemented. */ | |
5748 | ||
5749 | /* Clear RES0 bits. */ | |
5750 | env->cp15.hcrx_el2 = value & valid_mask; | |
5751 | } | |
5752 | ||
5753 | static CPAccessResult access_hxen(CPUARMState *env, const ARMCPRegInfo *ri, | |
5754 | bool isread) | |
5755 | { | |
5756 | if (arm_current_el(env) < 3 | |
5757 | && arm_feature(env, ARM_FEATURE_EL3) | |
5758 | && !(env->cp15.scr_el3 & SCR_HXEN)) { | |
5759 | return CP_ACCESS_TRAP_EL3; | |
5760 | } | |
5761 | return CP_ACCESS_OK; | |
5762 | } | |
5763 | ||
5764 | static const ARMCPRegInfo hcrx_el2_reginfo = { | |
5765 | .name = "HCRX_EL2", .state = ARM_CP_STATE_AA64, | |
5766 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 2, | |
5767 | .access = PL2_RW, .writefn = hcrx_write, .accessfn = access_hxen, | |
5768 | .fieldoffset = offsetof(CPUARMState, cp15.hcrx_el2), | |
5769 | }; | |
5770 | ||
5771 | /* Return the effective value of HCRX_EL2. */ | |
5772 | uint64_t arm_hcrx_el2_eff(CPUARMState *env) | |
5773 | { | |
5774 | /* | |
5775 | * The bits in this register behave as 0 for all purposes other than | |
5776 | * direct reads of the register if: | |
5777 | * - EL2 is not enabled in the current security state, | |
5778 | * - SCR_EL3.HXEn is 0. | |
5779 | */ | |
5780 | if (!arm_is_el2_enabled(env) | |
5781 | || (arm_feature(env, ARM_FEATURE_EL3) | |
5782 | && !(env->cp15.scr_el3 & SCR_HXEN))) { | |
5783 | return 0; | |
5784 | } | |
5785 | return env->cp15.hcrx_el2; | |
5786 | } | |
5787 | ||
fc1120a7 PM |
5788 | static void cptr_el2_write(CPUARMState *env, const ARMCPRegInfo *ri, |
5789 | uint64_t value) | |
5790 | { | |
5791 | /* | |
5792 | * For A-profile AArch32 EL3, if NSACR.CP10 | |
5793 | * is 0 then HCPTR.{TCP11,TCP10} ignore writes and read as 1. | |
5794 | */ | |
5795 | if (arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
5796 | !arm_is_secure(env) && !extract32(env->cp15.nsacr, 10, 1)) { | |
fab8ad39 RH |
5797 | uint64_t mask = R_HCPTR_TCP11_MASK | R_HCPTR_TCP10_MASK; |
5798 | value = (value & ~mask) | (env->cp15.cptr_el[2] & mask); | |
fc1120a7 PM |
5799 | } |
5800 | env->cp15.cptr_el[2] = value; | |
5801 | } | |
5802 | ||
5803 | static uint64_t cptr_el2_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
5804 | { | |
5805 | /* | |
5806 | * For A-profile AArch32 EL3, if NSACR.CP10 | |
5807 | * is 0 then HCPTR.{TCP11,TCP10} ignore writes and read as 1. | |
5808 | */ | |
5809 | uint64_t value = env->cp15.cptr_el[2]; | |
5810 | ||
5811 | if (arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
5812 | !arm_is_secure(env) && !extract32(env->cp15.nsacr, 10, 1)) { | |
fab8ad39 | 5813 | value |= R_HCPTR_TCP11_MASK | R_HCPTR_TCP10_MASK; |
fc1120a7 PM |
5814 | } |
5815 | return value; | |
5816 | } | |
5817 | ||
4771cd01 | 5818 | static const ARMCPRegInfo el2_cp_reginfo[] = { |
f149e3e8 | 5819 | { .name = "HCR_EL2", .state = ARM_CP_STATE_AA64, |
89430fc6 | 5820 | .type = ARM_CP_IO, |
f149e3e8 EI |
5821 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0, |
5822 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.hcr_el2), | |
c624ea0f | 5823 | .writefn = hcr_write }, |
ce4afed8 | 5824 | { .name = "HCR", .state = ARM_CP_STATE_AA32, |
89430fc6 | 5825 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
ce4afed8 PM |
5826 | .cp = 15, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 0, |
5827 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.hcr_el2), | |
c624ea0f | 5828 | .writefn = hcr_writelow }, |
831a2fca PM |
5829 | { .name = "HACR_EL2", .state = ARM_CP_STATE_BOTH, |
5830 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 7, | |
5831 | .access = PL2_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
3b685ba7 | 5832 | { .name = "ELR_EL2", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5833 | .type = ARM_CP_ALIAS, |
3b685ba7 EI |
5834 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 1, |
5835 | .access = PL2_RW, | |
5836 | .fieldoffset = offsetof(CPUARMState, elr_el[2]) }, | |
68e78e33 | 5837 | { .name = "ESR_EL2", .state = ARM_CP_STATE_BOTH, |
f2c30f42 EI |
5838 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 0, |
5839 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[2]) }, | |
cba517c3 | 5840 | { .name = "FAR_EL2", .state = ARM_CP_STATE_BOTH, |
63b60551 EI |
5841 | .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 0, |
5842 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[2]) }, | |
cba517c3 PM |
5843 | { .name = "HIFAR", .state = ARM_CP_STATE_AA32, |
5844 | .type = ARM_CP_ALIAS, | |
5845 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 2, | |
5846 | .access = PL2_RW, | |
5847 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.far_el[2]) }, | |
3b685ba7 | 5848 | { .name = "SPSR_EL2", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 5849 | .type = ARM_CP_ALIAS, |
3b685ba7 | 5850 | .opc0 = 3, .opc1 = 4, .crn = 4, .crm = 0, .opc2 = 0, |
99a99c1f SB |
5851 | .access = PL2_RW, |
5852 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_HYP]) }, | |
d79e0c06 | 5853 | { .name = "VBAR_EL2", .state = ARM_CP_STATE_BOTH, |
d42e3c26 EI |
5854 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 0, |
5855 | .access = PL2_RW, .writefn = vbar_write, | |
5856 | .fieldoffset = offsetof(CPUARMState, cp15.vbar_el[2]), | |
5857 | .resetvalue = 0 }, | |
884b4dee GB |
5858 | { .name = "SP_EL2", .state = ARM_CP_STATE_AA64, |
5859 | .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 1, .opc2 = 0, | |
7a0e58fa | 5860 | .access = PL3_RW, .type = ARM_CP_ALIAS, |
884b4dee | 5861 | .fieldoffset = offsetof(CPUARMState, sp_el[2]) }, |
c6f19164 GB |
5862 | { .name = "CPTR_EL2", .state = ARM_CP_STATE_BOTH, |
5863 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 2, | |
5864 | .access = PL2_RW, .accessfn = cptr_access, .resetvalue = 0, | |
fc1120a7 PM |
5865 | .fieldoffset = offsetof(CPUARMState, cp15.cptr_el[2]), |
5866 | .readfn = cptr_el2_read, .writefn = cptr_el2_write }, | |
95f949ac EI |
5867 | { .name = "MAIR_EL2", .state = ARM_CP_STATE_BOTH, |
5868 | .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 0, | |
5869 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.mair_el[2]), | |
5870 | .resetvalue = 0 }, | |
5871 | { .name = "HMAIR1", .state = ARM_CP_STATE_AA32, | |
b5ede85b | 5872 | .cp = 15, .opc1 = 4, .crn = 10, .crm = 2, .opc2 = 1, |
95f949ac EI |
5873 | .access = PL2_RW, .type = ARM_CP_ALIAS, |
5874 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.mair_el[2]) }, | |
2179ef95 PM |
5875 | { .name = "AMAIR_EL2", .state = ARM_CP_STATE_BOTH, |
5876 | .opc0 = 3, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 0, | |
5877 | .access = PL2_RW, .type = ARM_CP_CONST, | |
5878 | .resetvalue = 0 }, | |
5879 | /* HAMAIR1 is mapped to AMAIR_EL2[63:32] */ | |
55b53c71 | 5880 | { .name = "HAMAIR1", .state = ARM_CP_STATE_AA32, |
b5ede85b | 5881 | .cp = 15, .opc1 = 4, .crn = 10, .crm = 3, .opc2 = 1, |
2179ef95 PM |
5882 | .access = PL2_RW, .type = ARM_CP_CONST, |
5883 | .resetvalue = 0 }, | |
37cd6c24 PM |
5884 | { .name = "AFSR0_EL2", .state = ARM_CP_STATE_BOTH, |
5885 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 1, .opc2 = 0, | |
5886 | .access = PL2_RW, .type = ARM_CP_CONST, | |
5887 | .resetvalue = 0 }, | |
5888 | { .name = "AFSR1_EL2", .state = ARM_CP_STATE_BOTH, | |
5889 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 1, .opc2 = 1, | |
5890 | .access = PL2_RW, .type = ARM_CP_CONST, | |
5891 | .resetvalue = 0 }, | |
06ec4c8c EI |
5892 | { .name = "TCR_EL2", .state = ARM_CP_STATE_BOTH, |
5893 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 2, | |
d06dc933 | 5894 | .access = PL2_RW, .writefn = vmsa_tcr_el12_write, |
06ec4c8c | 5895 | .fieldoffset = offsetof(CPUARMState, cp15.tcr_el[2]) }, |
68e9c2fe EI |
5896 | { .name = "VTCR", .state = ARM_CP_STATE_AA32, |
5897 | .cp = 15, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2, | |
bf06c112 | 5898 | .type = ARM_CP_ALIAS, |
68e9c2fe | 5899 | .access = PL2_RW, .accessfn = access_el3_aa32ns, |
afbb181c | 5900 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vtcr_el2) }, |
68e9c2fe EI |
5901 | { .name = "VTCR_EL2", .state = ARM_CP_STATE_AA64, |
5902 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 2, | |
bf06c112 | 5903 | .access = PL2_RW, |
988cc190 | 5904 | /* no .writefn needed as this can't cause an ASID change */ |
68e9c2fe | 5905 | .fieldoffset = offsetof(CPUARMState, cp15.vtcr_el2) }, |
b698e9cf EI |
5906 | { .name = "VTTBR", .state = ARM_CP_STATE_AA32, |
5907 | .cp = 15, .opc1 = 6, .crm = 2, | |
5908 | .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
5909 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
5910 | .fieldoffset = offsetof(CPUARMState, cp15.vttbr_el2), | |
5911 | .writefn = vttbr_write }, | |
5912 | { .name = "VTTBR_EL2", .state = ARM_CP_STATE_AA64, | |
5913 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 1, .opc2 = 0, | |
5914 | .access = PL2_RW, .writefn = vttbr_write, | |
5915 | .fieldoffset = offsetof(CPUARMState, cp15.vttbr_el2) }, | |
b9cb5323 EI |
5916 | { .name = "SCTLR_EL2", .state = ARM_CP_STATE_BOTH, |
5917 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 0, | |
5918 | .access = PL2_RW, .raw_writefn = raw_write, .writefn = sctlr_write, | |
5919 | .fieldoffset = offsetof(CPUARMState, cp15.sctlr_el[2]) }, | |
ff05f37b EI |
5920 | { .name = "TPIDR_EL2", .state = ARM_CP_STATE_BOTH, |
5921 | .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 2, | |
5922 | .access = PL2_RW, .resetvalue = 0, | |
5923 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[2]) }, | |
a57633c0 EI |
5924 | { .name = "TTBR0_EL2", .state = ARM_CP_STATE_AA64, |
5925 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 0, | |
ed30da8e | 5926 | .access = PL2_RW, .resetvalue = 0, .writefn = vmsa_tcr_ttbr_el2_write, |
a57633c0 EI |
5927 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr0_el[2]) }, |
5928 | { .name = "HTTBR", .cp = 15, .opc1 = 4, .crm = 2, | |
5929 | .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_ALIAS, | |
a57633c0 | 5930 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr0_el[2]) }, |
541ef8c2 SS |
5931 | { .name = "TLBIALLNSNH", |
5932 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 4, | |
5933 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5934 | .writefn = tlbiall_nsnh_write }, | |
5935 | { .name = "TLBIALLNSNHIS", | |
5936 | .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 4, | |
5937 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5938 | .writefn = tlbiall_nsnh_is_write }, | |
5939 | { .name = "TLBIALLH", .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 0, | |
5940 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5941 | .writefn = tlbiall_hyp_write }, | |
5942 | { .name = "TLBIALLHIS", .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 0, | |
5943 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5944 | .writefn = tlbiall_hyp_is_write }, | |
5945 | { .name = "TLBIMVAH", .cp = 15, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 1, | |
5946 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5947 | .writefn = tlbimva_hyp_write }, | |
5948 | { .name = "TLBIMVAHIS", .cp = 15, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 1, | |
5949 | .type = ARM_CP_NO_RAW, .access = PL2_W, | |
5950 | .writefn = tlbimva_hyp_is_write }, | |
51da9014 EI |
5951 | { .name = "TLBI_ALLE2", .state = ARM_CP_STATE_AA64, |
5952 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 0, | |
696ba377 | 5953 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
fd3ed969 | 5954 | .writefn = tlbi_aa64_alle2_write }, |
8742d49d EI |
5955 | { .name = "TLBI_VAE2", .state = ARM_CP_STATE_AA64, |
5956 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 1, | |
696ba377 | 5957 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
fd3ed969 | 5958 | .writefn = tlbi_aa64_vae2_write }, |
2bfb9d75 PM |
5959 | { .name = "TLBI_VALE2", .state = ARM_CP_STATE_AA64, |
5960 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 7, .opc2 = 5, | |
696ba377 | 5961 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
2bfb9d75 PM |
5962 | .writefn = tlbi_aa64_vae2_write }, |
5963 | { .name = "TLBI_ALLE2IS", .state = ARM_CP_STATE_AA64, | |
5964 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 0, | |
696ba377 | 5965 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
2bfb9d75 | 5966 | .writefn = tlbi_aa64_alle2is_write }, |
8742d49d EI |
5967 | { .name = "TLBI_VAE2IS", .state = ARM_CP_STATE_AA64, |
5968 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 1, | |
696ba377 | 5969 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
fd3ed969 | 5970 | .writefn = tlbi_aa64_vae2is_write }, |
2bfb9d75 PM |
5971 | { .name = "TLBI_VALE2IS", .state = ARM_CP_STATE_AA64, |
5972 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 3, .opc2 = 5, | |
696ba377 | 5973 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
2bfb9d75 | 5974 | .writefn = tlbi_aa64_vae2is_write }, |
edac4d8a | 5975 | #ifndef CONFIG_USER_ONLY |
9b37a28c FR |
5976 | /* |
5977 | * Unlike the other EL2-related AT operations, these must | |
2a47df95 PM |
5978 | * UNDEF from EL3 if EL2 is not implemented, which is why we |
5979 | * define them here rather than with the rest of the AT ops. | |
5980 | */ | |
5981 | { .name = "AT_S1E2R", .state = ARM_CP_STATE_AA64, | |
5982 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 0, | |
5983 | .access = PL2_W, .accessfn = at_s1e2_access, | |
696ba377 RH |
5984 | .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC | ARM_CP_EL3_NO_EL2_UNDEF, |
5985 | .writefn = ats_write64 }, | |
2a47df95 PM |
5986 | { .name = "AT_S1E2W", .state = ARM_CP_STATE_AA64, |
5987 | .opc0 = 1, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1, | |
5988 | .access = PL2_W, .accessfn = at_s1e2_access, | |
696ba377 RH |
5989 | .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC | ARM_CP_EL3_NO_EL2_UNDEF, |
5990 | .writefn = ats_write64 }, | |
9b37a28c FR |
5991 | /* |
5992 | * The AArch32 ATS1H* operations are CONSTRAINED UNPREDICTABLE | |
14db7fe0 PM |
5993 | * if EL2 is not implemented; we choose to UNDEF. Behaviour at EL3 |
5994 | * with SCR.NS == 0 outside Monitor mode is UNPREDICTABLE; we choose | |
5995 | * to behave as if SCR.NS was 1. | |
5996 | */ | |
5997 | { .name = "ATS1HR", .cp = 15, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 0, | |
5998 | .access = PL2_W, | |
0710b2fa | 5999 | .writefn = ats1h_write, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC }, |
14db7fe0 PM |
6000 | { .name = "ATS1HW", .cp = 15, .opc1 = 4, .crn = 7, .crm = 8, .opc2 = 1, |
6001 | .access = PL2_W, | |
0710b2fa | 6002 | .writefn = ats1h_write, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC }, |
0b6440af EI |
6003 | { .name = "CNTHCTL_EL2", .state = ARM_CP_STATE_BOTH, |
6004 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 1, .opc2 = 0, | |
9b37a28c FR |
6005 | /* |
6006 | * ARMv7 requires bit 0 and 1 to reset to 1. ARMv8 defines the | |
0b6440af EI |
6007 | * reset values as IMPDEF. We choose to reset to 3 to comply with |
6008 | * both ARMv7 and ARMv8. | |
6009 | */ | |
6010 | .access = PL2_RW, .resetvalue = 3, | |
6011 | .fieldoffset = offsetof(CPUARMState, cp15.cnthctl_el2) }, | |
edac4d8a EI |
6012 | { .name = "CNTVOFF_EL2", .state = ARM_CP_STATE_AA64, |
6013 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 0, .opc2 = 3, | |
6014 | .access = PL2_RW, .type = ARM_CP_IO, .resetvalue = 0, | |
6015 | .writefn = gt_cntvoff_write, | |
6016 | .fieldoffset = offsetof(CPUARMState, cp15.cntvoff_el2) }, | |
6017 | { .name = "CNTVOFF", .cp = 15, .opc1 = 4, .crm = 14, | |
6018 | .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_ALIAS | ARM_CP_IO, | |
6019 | .writefn = gt_cntvoff_write, | |
6020 | .fieldoffset = offsetof(CPUARMState, cp15.cntvoff_el2) }, | |
b0e66d95 EI |
6021 | { .name = "CNTHP_CVAL_EL2", .state = ARM_CP_STATE_AA64, |
6022 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 2, | |
6023 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].cval), | |
6024 | .type = ARM_CP_IO, .access = PL2_RW, | |
6025 | .writefn = gt_hyp_cval_write, .raw_writefn = raw_write }, | |
6026 | { .name = "CNTHP_CVAL", .cp = 15, .opc1 = 6, .crm = 14, | |
6027 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].cval), | |
6028 | .access = PL2_RW, .type = ARM_CP_64BIT | ARM_CP_IO, | |
6029 | .writefn = gt_hyp_cval_write, .raw_writefn = raw_write }, | |
6030 | { .name = "CNTHP_TVAL_EL2", .state = ARM_CP_STATE_BOTH, | |
6031 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 0, | |
d44ec156 | 6032 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL2_RW, |
b0e66d95 EI |
6033 | .resetfn = gt_hyp_timer_reset, |
6034 | .readfn = gt_hyp_tval_read, .writefn = gt_hyp_tval_write }, | |
6035 | { .name = "CNTHP_CTL_EL2", .state = ARM_CP_STATE_BOTH, | |
6036 | .type = ARM_CP_IO, | |
6037 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 2, .opc2 = 1, | |
6038 | .access = PL2_RW, | |
6039 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYP].ctl), | |
6040 | .resetvalue = 0, | |
6041 | .writefn = gt_hyp_ctl_write, .raw_writefn = raw_write }, | |
edac4d8a | 6042 | #endif |
59e05530 EI |
6043 | { .name = "HPFAR", .state = ARM_CP_STATE_AA32, |
6044 | .cp = 15, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 4, | |
6045 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
6046 | .fieldoffset = offsetof(CPUARMState, cp15.hpfar_el2) }, | |
6047 | { .name = "HPFAR_EL2", .state = ARM_CP_STATE_AA64, | |
6048 | .opc0 = 3, .opc1 = 4, .crn = 6, .crm = 0, .opc2 = 4, | |
6049 | .access = PL2_RW, | |
6050 | .fieldoffset = offsetof(CPUARMState, cp15.hpfar_el2) }, | |
2a5a9abd AF |
6051 | { .name = "HSTR_EL2", .state = ARM_CP_STATE_BOTH, |
6052 | .cp = 15, .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 3, | |
6053 | .access = PL2_RW, | |
6054 | .fieldoffset = offsetof(CPUARMState, cp15.hstr_el2) }, | |
3b685ba7 EI |
6055 | }; |
6056 | ||
ce4afed8 PM |
6057 | static const ARMCPRegInfo el2_v8_cp_reginfo[] = { |
6058 | { .name = "HCR2", .state = ARM_CP_STATE_AA32, | |
89430fc6 | 6059 | .type = ARM_CP_ALIAS | ARM_CP_IO, |
ce4afed8 PM |
6060 | .cp = 15, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 4, |
6061 | .access = PL2_RW, | |
6062 | .fieldoffset = offsetofhigh32(CPUARMState, cp15.hcr_el2), | |
6063 | .writefn = hcr_writehigh }, | |
ce4afed8 PM |
6064 | }; |
6065 | ||
e9152ee9 RDC |
6066 | static CPAccessResult sel2_access(CPUARMState *env, const ARMCPRegInfo *ri, |
6067 | bool isread) | |
6068 | { | |
6069 | if (arm_current_el(env) == 3 || arm_is_secure_below_el3(env)) { | |
6070 | return CP_ACCESS_OK; | |
6071 | } | |
6072 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
6073 | } | |
6074 | ||
6075 | static const ARMCPRegInfo el2_sec_cp_reginfo[] = { | |
6076 | { .name = "VSTTBR_EL2", .state = ARM_CP_STATE_AA64, | |
6077 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 0, | |
6078 | .access = PL2_RW, .accessfn = sel2_access, | |
6079 | .fieldoffset = offsetof(CPUARMState, cp15.vsttbr_el2) }, | |
6080 | { .name = "VSTCR_EL2", .state = ARM_CP_STATE_AA64, | |
6081 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 6, .opc2 = 2, | |
6082 | .access = PL2_RW, .accessfn = sel2_access, | |
6083 | .fieldoffset = offsetof(CPUARMState, cp15.vstcr_el2) }, | |
e9152ee9 RDC |
6084 | }; |
6085 | ||
2f027fc5 PM |
6086 | static CPAccessResult nsacr_access(CPUARMState *env, const ARMCPRegInfo *ri, |
6087 | bool isread) | |
6088 | { | |
9b37a28c FR |
6089 | /* |
6090 | * The NSACR is RW at EL3, and RO for NS EL1 and NS EL2. | |
926c1b97 | 6091 | * At Secure EL1 it traps to EL3 or EL2. |
2f027fc5 PM |
6092 | */ |
6093 | if (arm_current_el(env) == 3) { | |
6094 | return CP_ACCESS_OK; | |
6095 | } | |
6096 | if (arm_is_secure_below_el3(env)) { | |
926c1b97 RDC |
6097 | if (env->cp15.scr_el3 & SCR_EEL2) { |
6098 | return CP_ACCESS_TRAP_EL2; | |
6099 | } | |
2f027fc5 PM |
6100 | return CP_ACCESS_TRAP_EL3; |
6101 | } | |
6102 | /* Accesses from EL1 NS and EL2 NS are UNDEF for write but allow reads. */ | |
6103 | if (isread) { | |
6104 | return CP_ACCESS_OK; | |
6105 | } | |
6106 | return CP_ACCESS_TRAP_UNCATEGORIZED; | |
6107 | } | |
6108 | ||
60fb1a87 GB |
6109 | static const ARMCPRegInfo el3_cp_reginfo[] = { |
6110 | { .name = "SCR_EL3", .state = ARM_CP_STATE_AA64, | |
6111 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 1, .opc2 = 0, | |
6112 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.scr_el3), | |
10d0ef3e | 6113 | .resetfn = scr_reset, .writefn = scr_write }, |
f80741d1 | 6114 | { .name = "SCR", .type = ARM_CP_ALIAS | ARM_CP_NEWEL, |
60fb1a87 | 6115 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 0, |
efe4a274 PM |
6116 | .access = PL1_RW, .accessfn = access_trap_aa32s_el1, |
6117 | .fieldoffset = offsetoflow32(CPUARMState, cp15.scr_el3), | |
b061a82b | 6118 | .writefn = scr_write }, |
60fb1a87 GB |
6119 | { .name = "SDER32_EL3", .state = ARM_CP_STATE_AA64, |
6120 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 1, .opc2 = 1, | |
6121 | .access = PL3_RW, .resetvalue = 0, | |
6122 | .fieldoffset = offsetof(CPUARMState, cp15.sder) }, | |
6123 | { .name = "SDER", | |
6124 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 1, | |
6125 | .access = PL3_RW, .resetvalue = 0, | |
6126 | .fieldoffset = offsetoflow32(CPUARMState, cp15.sder) }, | |
60fb1a87 | 6127 | { .name = "MVBAR", .cp = 15, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, |
efe4a274 PM |
6128 | .access = PL1_RW, .accessfn = access_trap_aa32s_el1, |
6129 | .writefn = vbar_write, .resetvalue = 0, | |
60fb1a87 | 6130 | .fieldoffset = offsetof(CPUARMState, cp15.mvbar) }, |
7dd8c9af FA |
6131 | { .name = "TTBR0_EL3", .state = ARM_CP_STATE_AA64, |
6132 | .opc0 = 3, .opc1 = 6, .crn = 2, .crm = 0, .opc2 = 0, | |
f478847f | 6133 | .access = PL3_RW, .resetvalue = 0, |
7dd8c9af | 6134 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr0_el[3]) }, |
11f136ee FA |
6135 | { .name = "TCR_EL3", .state = ARM_CP_STATE_AA64, |
6136 | .opc0 = 3, .opc1 = 6, .crn = 2, .crm = 0, .opc2 = 2, | |
6459b94c | 6137 | .access = PL3_RW, |
cb4a0a34 PM |
6138 | /* no .writefn needed as this can't cause an ASID change */ |
6139 | .resetvalue = 0, | |
11f136ee | 6140 | .fieldoffset = offsetof(CPUARMState, cp15.tcr_el[3]) }, |
81547d66 | 6141 | { .name = "ELR_EL3", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 6142 | .type = ARM_CP_ALIAS, |
81547d66 EI |
6143 | .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 0, .opc2 = 1, |
6144 | .access = PL3_RW, | |
6145 | .fieldoffset = offsetof(CPUARMState, elr_el[3]) }, | |
f2c30f42 | 6146 | { .name = "ESR_EL3", .state = ARM_CP_STATE_AA64, |
f2c30f42 EI |
6147 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 2, .opc2 = 0, |
6148 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.esr_el[3]) }, | |
63b60551 EI |
6149 | { .name = "FAR_EL3", .state = ARM_CP_STATE_AA64, |
6150 | .opc0 = 3, .opc1 = 6, .crn = 6, .crm = 0, .opc2 = 0, | |
6151 | .access = PL3_RW, .fieldoffset = offsetof(CPUARMState, cp15.far_el[3]) }, | |
81547d66 | 6152 | { .name = "SPSR_EL3", .state = ARM_CP_STATE_AA64, |
7a0e58fa | 6153 | .type = ARM_CP_ALIAS, |
81547d66 | 6154 | .opc0 = 3, .opc1 = 6, .crn = 4, .crm = 0, .opc2 = 0, |
99a99c1f SB |
6155 | .access = PL3_RW, |
6156 | .fieldoffset = offsetof(CPUARMState, banked_spsr[BANK_MON]) }, | |
a1ba125c EI |
6157 | { .name = "VBAR_EL3", .state = ARM_CP_STATE_AA64, |
6158 | .opc0 = 3, .opc1 = 6, .crn = 12, .crm = 0, .opc2 = 0, | |
6159 | .access = PL3_RW, .writefn = vbar_write, | |
6160 | .fieldoffset = offsetof(CPUARMState, cp15.vbar_el[3]), | |
6161 | .resetvalue = 0 }, | |
c6f19164 GB |
6162 | { .name = "CPTR_EL3", .state = ARM_CP_STATE_AA64, |
6163 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 1, .opc2 = 2, | |
6164 | .access = PL3_RW, .accessfn = cptr_access, .resetvalue = 0, | |
6165 | .fieldoffset = offsetof(CPUARMState, cp15.cptr_el[3]) }, | |
4cfb8ad8 PM |
6166 | { .name = "TPIDR_EL3", .state = ARM_CP_STATE_AA64, |
6167 | .opc0 = 3, .opc1 = 6, .crn = 13, .crm = 0, .opc2 = 2, | |
6168 | .access = PL3_RW, .resetvalue = 0, | |
6169 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr_el[3]) }, | |
2179ef95 PM |
6170 | { .name = "AMAIR_EL3", .state = ARM_CP_STATE_AA64, |
6171 | .opc0 = 3, .opc1 = 6, .crn = 10, .crm = 3, .opc2 = 0, | |
6172 | .access = PL3_RW, .type = ARM_CP_CONST, | |
6173 | .resetvalue = 0 }, | |
37cd6c24 PM |
6174 | { .name = "AFSR0_EL3", .state = ARM_CP_STATE_BOTH, |
6175 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 1, .opc2 = 0, | |
6176 | .access = PL3_RW, .type = ARM_CP_CONST, | |
6177 | .resetvalue = 0 }, | |
6178 | { .name = "AFSR1_EL3", .state = ARM_CP_STATE_BOTH, | |
6179 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 1, .opc2 = 1, | |
6180 | .access = PL3_RW, .type = ARM_CP_CONST, | |
6181 | .resetvalue = 0 }, | |
43efaa33 PM |
6182 | { .name = "TLBI_ALLE3IS", .state = ARM_CP_STATE_AA64, |
6183 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 3, .opc2 = 0, | |
6184 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6185 | .writefn = tlbi_aa64_alle3is_write }, | |
6186 | { .name = "TLBI_VAE3IS", .state = ARM_CP_STATE_AA64, | |
6187 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 3, .opc2 = 1, | |
6188 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6189 | .writefn = tlbi_aa64_vae3is_write }, | |
6190 | { .name = "TLBI_VALE3IS", .state = ARM_CP_STATE_AA64, | |
6191 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 3, .opc2 = 5, | |
6192 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6193 | .writefn = tlbi_aa64_vae3is_write }, | |
6194 | { .name = "TLBI_ALLE3", .state = ARM_CP_STATE_AA64, | |
6195 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 7, .opc2 = 0, | |
6196 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6197 | .writefn = tlbi_aa64_alle3_write }, | |
6198 | { .name = "TLBI_VAE3", .state = ARM_CP_STATE_AA64, | |
6199 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 7, .opc2 = 1, | |
6200 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6201 | .writefn = tlbi_aa64_vae3_write }, | |
6202 | { .name = "TLBI_VALE3", .state = ARM_CP_STATE_AA64, | |
6203 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 7, .opc2 = 5, | |
6204 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
6205 | .writefn = tlbi_aa64_vae3_write }, | |
0f1a3b24 FA |
6206 | }; |
6207 | ||
e2cce18f RH |
6208 | #ifndef CONFIG_USER_ONLY |
6209 | /* Test if system register redirection is to occur in the current state. */ | |
6210 | static bool redirect_for_e2h(CPUARMState *env) | |
6211 | { | |
6212 | return arm_current_el(env) == 2 && (arm_hcr_el2_eff(env) & HCR_E2H); | |
6213 | } | |
6214 | ||
6215 | static uint64_t el2_e2h_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
6216 | { | |
6217 | CPReadFn *readfn; | |
6218 | ||
6219 | if (redirect_for_e2h(env)) { | |
6220 | /* Switch to the saved EL2 version of the register. */ | |
6221 | ri = ri->opaque; | |
6222 | readfn = ri->readfn; | |
6223 | } else { | |
6224 | readfn = ri->orig_readfn; | |
6225 | } | |
6226 | if (readfn == NULL) { | |
6227 | readfn = raw_read; | |
6228 | } | |
6229 | return readfn(env, ri); | |
6230 | } | |
6231 | ||
6232 | static void el2_e2h_write(CPUARMState *env, const ARMCPRegInfo *ri, | |
6233 | uint64_t value) | |
6234 | { | |
6235 | CPWriteFn *writefn; | |
6236 | ||
6237 | if (redirect_for_e2h(env)) { | |
6238 | /* Switch to the saved EL2 version of the register. */ | |
6239 | ri = ri->opaque; | |
6240 | writefn = ri->writefn; | |
6241 | } else { | |
6242 | writefn = ri->orig_writefn; | |
6243 | } | |
6244 | if (writefn == NULL) { | |
6245 | writefn = raw_write; | |
6246 | } | |
6247 | writefn(env, ri, value); | |
6248 | } | |
6249 | ||
6250 | static void define_arm_vh_e2h_redirects_aliases(ARMCPU *cpu) | |
6251 | { | |
6252 | struct E2HAlias { | |
6253 | uint32_t src_key, dst_key, new_key; | |
6254 | const char *src_name, *dst_name, *new_name; | |
6255 | bool (*feature)(const ARMISARegisters *id); | |
6256 | }; | |
6257 | ||
6258 | #define K(op0, op1, crn, crm, op2) \ | |
6259 | ENCODE_AA64_CP_REG(CP_REG_ARM64_SYSREG_CP, crn, crm, op0, op1, op2) | |
6260 | ||
6261 | static const struct E2HAlias aliases[] = { | |
6262 | { K(3, 0, 1, 0, 0), K(3, 4, 1, 0, 0), K(3, 5, 1, 0, 0), | |
6263 | "SCTLR", "SCTLR_EL2", "SCTLR_EL12" }, | |
6264 | { K(3, 0, 1, 0, 2), K(3, 4, 1, 1, 2), K(3, 5, 1, 0, 2), | |
6265 | "CPACR", "CPTR_EL2", "CPACR_EL12" }, | |
6266 | { K(3, 0, 2, 0, 0), K(3, 4, 2, 0, 0), K(3, 5, 2, 0, 0), | |
6267 | "TTBR0_EL1", "TTBR0_EL2", "TTBR0_EL12" }, | |
6268 | { K(3, 0, 2, 0, 1), K(3, 4, 2, 0, 1), K(3, 5, 2, 0, 1), | |
6269 | "TTBR1_EL1", "TTBR1_EL2", "TTBR1_EL12" }, | |
6270 | { K(3, 0, 2, 0, 2), K(3, 4, 2, 0, 2), K(3, 5, 2, 0, 2), | |
6271 | "TCR_EL1", "TCR_EL2", "TCR_EL12" }, | |
6272 | { K(3, 0, 4, 0, 0), K(3, 4, 4, 0, 0), K(3, 5, 4, 0, 0), | |
6273 | "SPSR_EL1", "SPSR_EL2", "SPSR_EL12" }, | |
6274 | { K(3, 0, 4, 0, 1), K(3, 4, 4, 0, 1), K(3, 5, 4, 0, 1), | |
6275 | "ELR_EL1", "ELR_EL2", "ELR_EL12" }, | |
6276 | { K(3, 0, 5, 1, 0), K(3, 4, 5, 1, 0), K(3, 5, 5, 1, 0), | |
6277 | "AFSR0_EL1", "AFSR0_EL2", "AFSR0_EL12" }, | |
6278 | { K(3, 0, 5, 1, 1), K(3, 4, 5, 1, 1), K(3, 5, 5, 1, 1), | |
6279 | "AFSR1_EL1", "AFSR1_EL2", "AFSR1_EL12" }, | |
6280 | { K(3, 0, 5, 2, 0), K(3, 4, 5, 2, 0), K(3, 5, 5, 2, 0), | |
6281 | "ESR_EL1", "ESR_EL2", "ESR_EL12" }, | |
6282 | { K(3, 0, 6, 0, 0), K(3, 4, 6, 0, 0), K(3, 5, 6, 0, 0), | |
6283 | "FAR_EL1", "FAR_EL2", "FAR_EL12" }, | |
6284 | { K(3, 0, 10, 2, 0), K(3, 4, 10, 2, 0), K(3, 5, 10, 2, 0), | |
6285 | "MAIR_EL1", "MAIR_EL2", "MAIR_EL12" }, | |
6286 | { K(3, 0, 10, 3, 0), K(3, 4, 10, 3, 0), K(3, 5, 10, 3, 0), | |
6287 | "AMAIR0", "AMAIR_EL2", "AMAIR_EL12" }, | |
6288 | { K(3, 0, 12, 0, 0), K(3, 4, 12, 0, 0), K(3, 5, 12, 0, 0), | |
6289 | "VBAR", "VBAR_EL2", "VBAR_EL12" }, | |
6290 | { K(3, 0, 13, 0, 1), K(3, 4, 13, 0, 1), K(3, 5, 13, 0, 1), | |
6291 | "CONTEXTIDR_EL1", "CONTEXTIDR_EL2", "CONTEXTIDR_EL12" }, | |
6292 | { K(3, 0, 14, 1, 0), K(3, 4, 14, 1, 0), K(3, 5, 14, 1, 0), | |
6293 | "CNTKCTL", "CNTHCTL_EL2", "CNTKCTL_EL12" }, | |
6294 | ||
6295 | /* | |
6296 | * Note that redirection of ZCR is mentioned in the description | |
6297 | * of ZCR_EL2, and aliasing in the description of ZCR_EL1, but | |
6298 | * not in the summary table. | |
6299 | */ | |
6300 | { K(3, 0, 1, 2, 0), K(3, 4, 1, 2, 0), K(3, 5, 1, 2, 0), | |
6301 | "ZCR_EL1", "ZCR_EL2", "ZCR_EL12", isar_feature_aa64_sve }, | |
de561988 RH |
6302 | { K(3, 0, 1, 2, 6), K(3, 4, 1, 2, 6), K(3, 5, 1, 2, 6), |
6303 | "SMCR_EL1", "SMCR_EL2", "SMCR_EL12", isar_feature_aa64_sme }, | |
e2cce18f | 6304 | |
4b779ceb RH |
6305 | { K(3, 0, 5, 6, 0), K(3, 4, 5, 6, 0), K(3, 5, 5, 6, 0), |
6306 | "TFSR_EL1", "TFSR_EL2", "TFSR_EL12", isar_feature_aa64_mte }, | |
6307 | ||
7cb1e618 RH |
6308 | { K(3, 0, 13, 0, 7), K(3, 4, 13, 0, 7), K(3, 5, 13, 0, 7), |
6309 | "SCXTNUM_EL1", "SCXTNUM_EL2", "SCXTNUM_EL12", | |
6310 | isar_feature_aa64_scxtnum }, | |
6311 | ||
e2cce18f RH |
6312 | /* TODO: ARMv8.2-SPE -- PMSCR_EL2 */ |
6313 | /* TODO: ARMv8.4-Trace -- TRFCR_EL2 */ | |
6314 | }; | |
6315 | #undef K | |
6316 | ||
6317 | size_t i; | |
6318 | ||
6319 | for (i = 0; i < ARRAY_SIZE(aliases); i++) { | |
6320 | const struct E2HAlias *a = &aliases[i]; | |
9da35a40 | 6321 | ARMCPRegInfo *src_reg, *dst_reg, *new_reg; |
9da35a40 | 6322 | bool ok; |
e2cce18f RH |
6323 | |
6324 | if (a->feature && !a->feature(&cpu->isar)) { | |
6325 | continue; | |
6326 | } | |
6327 | ||
5860362d RH |
6328 | src_reg = g_hash_table_lookup(cpu->cp_regs, |
6329 | (gpointer)(uintptr_t)a->src_key); | |
6330 | dst_reg = g_hash_table_lookup(cpu->cp_regs, | |
6331 | (gpointer)(uintptr_t)a->dst_key); | |
e2cce18f RH |
6332 | g_assert(src_reg != NULL); |
6333 | g_assert(dst_reg != NULL); | |
6334 | ||
6335 | /* Cross-compare names to detect typos in the keys. */ | |
6336 | g_assert(strcmp(src_reg->name, a->src_name) == 0); | |
6337 | g_assert(strcmp(dst_reg->name, a->dst_name) == 0); | |
6338 | ||
6339 | /* None of the core system registers use opaque; we will. */ | |
6340 | g_assert(src_reg->opaque == NULL); | |
6341 | ||
6342 | /* Create alias before redirection so we dup the right data. */ | |
9da35a40 | 6343 | new_reg = g_memdup(src_reg, sizeof(ARMCPRegInfo)); |
9da35a40 RH |
6344 | |
6345 | new_reg->name = a->new_name; | |
6346 | new_reg->type |= ARM_CP_ALIAS; | |
6347 | /* Remove PL1/PL0 access, leaving PL2/PL3 R/W in place. */ | |
6348 | new_reg->access &= PL2_RW | PL3_RW; | |
6349 | ||
5860362d RH |
6350 | ok = g_hash_table_insert(cpu->cp_regs, |
6351 | (gpointer)(uintptr_t)a->new_key, new_reg); | |
9da35a40 | 6352 | g_assert(ok); |
e2cce18f RH |
6353 | |
6354 | src_reg->opaque = dst_reg; | |
6355 | src_reg->orig_readfn = src_reg->readfn ?: raw_read; | |
6356 | src_reg->orig_writefn = src_reg->writefn ?: raw_write; | |
6357 | if (!src_reg->raw_readfn) { | |
6358 | src_reg->raw_readfn = raw_read; | |
6359 | } | |
6360 | if (!src_reg->raw_writefn) { | |
6361 | src_reg->raw_writefn = raw_write; | |
6362 | } | |
6363 | src_reg->readfn = el2_e2h_read; | |
6364 | src_reg->writefn = el2_e2h_write; | |
6365 | } | |
6366 | } | |
6367 | #endif | |
6368 | ||
3f208fd7 PM |
6369 | static CPAccessResult ctr_el0_access(CPUARMState *env, const ARMCPRegInfo *ri, |
6370 | bool isread) | |
7da845b0 | 6371 | { |
97475a89 RH |
6372 | int cur_el = arm_current_el(env); |
6373 | ||
6374 | if (cur_el < 2) { | |
6375 | uint64_t hcr = arm_hcr_el2_eff(env); | |
6376 | ||
6377 | if (cur_el == 0) { | |
6378 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
6379 | if (!(env->cp15.sctlr_el[2] & SCTLR_UCT)) { | |
6380 | return CP_ACCESS_TRAP_EL2; | |
6381 | } | |
6382 | } else { | |
6383 | if (!(env->cp15.sctlr_el[1] & SCTLR_UCT)) { | |
6384 | return CP_ACCESS_TRAP; | |
6385 | } | |
6386 | if (hcr & HCR_TID2) { | |
6387 | return CP_ACCESS_TRAP_EL2; | |
6388 | } | |
6389 | } | |
6390 | } else if (hcr & HCR_TID2) { | |
6391 | return CP_ACCESS_TRAP_EL2; | |
6392 | } | |
7da845b0 | 6393 | } |
630fcd4d MZ |
6394 | |
6395 | if (arm_current_el(env) < 2 && arm_hcr_el2_eff(env) & HCR_TID2) { | |
6396 | return CP_ACCESS_TRAP_EL2; | |
6397 | } | |
6398 | ||
7da845b0 PM |
6399 | return CP_ACCESS_OK; |
6400 | } | |
6401 | ||
58e93b48 RH |
6402 | /* |
6403 | * Check for traps to RAS registers, which are controlled | |
6404 | * by HCR_EL2.TERR and SCR_EL3.TERR. | |
6405 | */ | |
6406 | static CPAccessResult access_terr(CPUARMState *env, const ARMCPRegInfo *ri, | |
6407 | bool isread) | |
6408 | { | |
6409 | int el = arm_current_el(env); | |
6410 | ||
6411 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_TERR)) { | |
6412 | return CP_ACCESS_TRAP_EL2; | |
6413 | } | |
6414 | if (el < 3 && (env->cp15.scr_el3 & SCR_TERR)) { | |
6415 | return CP_ACCESS_TRAP_EL3; | |
6416 | } | |
6417 | return CP_ACCESS_OK; | |
6418 | } | |
6419 | ||
6420 | static uint64_t disr_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
6421 | { | |
6422 | int el = arm_current_el(env); | |
6423 | ||
6424 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_AMO)) { | |
6425 | return env->cp15.vdisr_el2; | |
6426 | } | |
6427 | if (el < 3 && (env->cp15.scr_el3 & SCR_EA)) { | |
6428 | return 0; /* RAZ/WI */ | |
6429 | } | |
6430 | return env->cp15.disr_el1; | |
6431 | } | |
6432 | ||
6433 | static void disr_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) | |
6434 | { | |
6435 | int el = arm_current_el(env); | |
6436 | ||
6437 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_AMO)) { | |
6438 | env->cp15.vdisr_el2 = val; | |
6439 | return; | |
6440 | } | |
6441 | if (el < 3 && (env->cp15.scr_el3 & SCR_EA)) { | |
6442 | return; /* RAZ/WI */ | |
6443 | } | |
6444 | env->cp15.disr_el1 = val; | |
6445 | } | |
6446 | ||
6447 | /* | |
6448 | * Minimal RAS implementation with no Error Records. | |
6449 | * Which means that all of the Error Record registers: | |
6450 | * ERXADDR_EL1 | |
6451 | * ERXCTLR_EL1 | |
6452 | * ERXFR_EL1 | |
6453 | * ERXMISC0_EL1 | |
6454 | * ERXMISC1_EL1 | |
6455 | * ERXMISC2_EL1 | |
6456 | * ERXMISC3_EL1 | |
6457 | * ERXPFGCDN_EL1 (RASv1p1) | |
6458 | * ERXPFGCTL_EL1 (RASv1p1) | |
6459 | * ERXPFGF_EL1 (RASv1p1) | |
6460 | * ERXSTATUS_EL1 | |
6461 | * and | |
6462 | * ERRSELR_EL1 | |
6463 | * may generate UNDEFINED, which is the effect we get by not | |
6464 | * listing them at all. | |
6465 | */ | |
6466 | static const ARMCPRegInfo minimal_ras_reginfo[] = { | |
6467 | { .name = "DISR_EL1", .state = ARM_CP_STATE_BOTH, | |
6468 | .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 1, .opc2 = 1, | |
6469 | .access = PL1_RW, .fieldoffset = offsetof(CPUARMState, cp15.disr_el1), | |
6470 | .readfn = disr_read, .writefn = disr_write, .raw_writefn = raw_write }, | |
6471 | { .name = "ERRIDR_EL1", .state = ARM_CP_STATE_BOTH, | |
6472 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 3, .opc2 = 0, | |
6473 | .access = PL1_R, .accessfn = access_terr, | |
6474 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6475 | { .name = "VDISR_EL2", .state = ARM_CP_STATE_BOTH, | |
6476 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 1, .opc2 = 1, | |
6477 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.vdisr_el2) }, | |
6478 | { .name = "VSESR_EL2", .state = ARM_CP_STATE_BOTH, | |
6479 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 2, .opc2 = 3, | |
6480 | .access = PL2_RW, .fieldoffset = offsetof(CPUARMState, cp15.vsesr_el2) }, | |
6481 | }; | |
6482 | ||
397d922c RH |
6483 | /* |
6484 | * Return the exception level to which exceptions should be taken | |
6485 | * via SVEAccessTrap. This excludes the check for whether the exception | |
6486 | * should be routed through AArch64.AdvSIMDFPAccessTrap. That can easily | |
6487 | * be found by testing 0 < fp_exception_el < sve_exception_el. | |
6488 | * | |
6489 | * C.f. the ARM pseudocode function CheckSVEEnabled. Note that the | |
6490 | * pseudocode does *not* separate out the FP trap checks, but has them | |
6491 | * all in one function. | |
5be5e8ed | 6492 | */ |
ced31551 | 6493 | int sve_exception_el(CPUARMState *env, int el) |
5be5e8ed RH |
6494 | { |
6495 | #ifndef CONFIG_USER_ONLY | |
aa4451b6 | 6496 | if (el <= 1 && !el_is_in_host(env, el)) { |
fab8ad39 | 6497 | switch (FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, ZEN)) { |
7701cee5 RH |
6498 | case 1: |
6499 | if (el != 0) { | |
6500 | break; | |
6501 | } | |
6502 | /* fall through */ | |
6503 | case 0: | |
6504 | case 2: | |
61a8c23a | 6505 | return 1; |
5be5e8ed | 6506 | } |
5be5e8ed RH |
6507 | } |
6508 | ||
7d38cb92 RH |
6509 | if (el <= 2 && arm_is_el2_enabled(env)) { |
6510 | /* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */ | |
6511 | if (env->cp15.hcr_el2 & HCR_E2H) { | |
fab8ad39 | 6512 | switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, ZEN)) { |
d5a6fa2d | 6513 | case 1: |
7d38cb92 | 6514 | if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) { |
d5a6fa2d RH |
6515 | break; |
6516 | } | |
6517 | /* fall through */ | |
6518 | case 0: | |
6519 | case 2: | |
6520 | return 2; | |
6521 | } | |
7d38cb92 | 6522 | } else { |
fab8ad39 | 6523 | if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TZ)) { |
d5a6fa2d RH |
6524 | return 2; |
6525 | } | |
60eed086 | 6526 | } |
5be5e8ed RH |
6527 | } |
6528 | ||
60eed086 RH |
6529 | /* CPTR_EL3. Since EZ is negative we must check for EL3. */ |
6530 | if (arm_feature(env, ARM_FEATURE_EL3) | |
fab8ad39 | 6531 | && !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, EZ)) { |
5be5e8ed RH |
6532 | return 3; |
6533 | } | |
6534 | #endif | |
6535 | return 0; | |
6536 | } | |
6537 | ||
6b2ca83e RH |
6538 | /* |
6539 | * Return the exception level to which exceptions should be taken for SME. | |
6540 | * C.f. the ARM pseudocode function CheckSMEAccess. | |
6541 | */ | |
6542 | int sme_exception_el(CPUARMState *env, int el) | |
6543 | { | |
6544 | #ifndef CONFIG_USER_ONLY | |
6545 | if (el <= 1 && !el_is_in_host(env, el)) { | |
6546 | switch (FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, SMEN)) { | |
6547 | case 1: | |
6548 | if (el != 0) { | |
6549 | break; | |
6550 | } | |
6551 | /* fall through */ | |
6552 | case 0: | |
6553 | case 2: | |
6554 | return 1; | |
6555 | } | |
6556 | } | |
6557 | ||
6558 | if (el <= 2 && arm_is_el2_enabled(env)) { | |
6559 | /* CPTR_EL2 changes format with HCR_EL2.E2H (regardless of TGE). */ | |
6560 | if (env->cp15.hcr_el2 & HCR_E2H) { | |
6561 | switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, SMEN)) { | |
6562 | case 1: | |
6563 | if (el != 0 || !(env->cp15.hcr_el2 & HCR_TGE)) { | |
6564 | break; | |
6565 | } | |
6566 | /* fall through */ | |
6567 | case 0: | |
6568 | case 2: | |
6569 | return 2; | |
6570 | } | |
6571 | } else { | |
6572 | if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TSM)) { | |
6573 | return 2; | |
6574 | } | |
6575 | } | |
6576 | } | |
6577 | ||
6578 | /* CPTR_EL3. Since ESM is negative we must check for EL3. */ | |
6579 | if (arm_feature(env, ARM_FEATURE_EL3) | |
6580 | && !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, ESM)) { | |
6581 | return 3; | |
6582 | } | |
6583 | #endif | |
6584 | return 0; | |
6585 | } | |
6586 | ||
75fe8356 RH |
6587 | /* This corresponds to the ARM pseudocode function IsFullA64Enabled(). */ |
6588 | static bool sme_fa64(CPUARMState *env, int el) | |
6589 | { | |
6590 | if (!cpu_isar_feature(aa64_sme_fa64, env_archcpu(env))) { | |
6591 | return false; | |
6592 | } | |
6593 | ||
6594 | if (el <= 1 && !el_is_in_host(env, el)) { | |
6595 | if (!FIELD_EX64(env->vfp.smcr_el[1], SMCR, FA64)) { | |
6596 | return false; | |
6597 | } | |
6598 | } | |
6599 | if (el <= 2 && arm_is_el2_enabled(env)) { | |
6600 | if (!FIELD_EX64(env->vfp.smcr_el[2], SMCR, FA64)) { | |
6601 | return false; | |
6602 | } | |
6603 | } | |
6604 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
6605 | if (!FIELD_EX64(env->vfp.smcr_el[3], SMCR, FA64)) { | |
6606 | return false; | |
6607 | } | |
6608 | } | |
6609 | ||
6610 | return true; | |
6611 | } | |
6612 | ||
0ab5953b RH |
6613 | /* |
6614 | * Given that SVE is enabled, return the vector length for EL. | |
6615 | */ | |
6ca54aa9 | 6616 | uint32_t sve_vqm1_for_el_sm(CPUARMState *env, int el, bool sm) |
0ab5953b | 6617 | { |
2fc0cc0e | 6618 | ARMCPU *cpu = env_archcpu(env); |
6ca54aa9 RH |
6619 | uint64_t *cr = env->vfp.zcr_el; |
6620 | uint32_t map = cpu->sve_vq.map; | |
6621 | uint32_t len = ARM_MAX_VQ - 1; | |
6622 | ||
6623 | if (sm) { | |
6624 | cr = env->vfp.smcr_el; | |
6625 | map = cpu->sme_vq.map; | |
6626 | } | |
0ab5953b | 6627 | |
c6225beb | 6628 | if (el <= 1 && !el_is_in_host(env, el)) { |
6ca54aa9 | 6629 | len = MIN(len, 0xf & (uint32_t)cr[1]); |
0ab5953b | 6630 | } |
6a02a732 | 6631 | if (el <= 2 && arm_feature(env, ARM_FEATURE_EL2)) { |
6ca54aa9 | 6632 | len = MIN(len, 0xf & (uint32_t)cr[2]); |
0ab5953b | 6633 | } |
6a02a732 | 6634 | if (arm_feature(env, ARM_FEATURE_EL3)) { |
6ca54aa9 RH |
6635 | len = MIN(len, 0xf & (uint32_t)cr[3]); |
6636 | } | |
6637 | ||
6638 | map &= MAKE_64BIT_MASK(0, len + 1); | |
6639 | if (map != 0) { | |
6640 | return 31 - clz32(map); | |
0ab5953b | 6641 | } |
0df9142d | 6642 | |
6ca54aa9 RH |
6643 | /* Bit 0 is always set for Normal SVE -- not so for Streaming SVE. */ |
6644 | assert(sm); | |
6645 | return ctz32(cpu->sme_vq.map); | |
6646 | } | |
6647 | ||
6648 | uint32_t sve_vqm1_for_el(CPUARMState *env, int el) | |
6649 | { | |
6650 | return sve_vqm1_for_el_sm(env, el, FIELD_EX64(env->svcr, SVCR, SM)); | |
0ab5953b RH |
6651 | } |
6652 | ||
5be5e8ed RH |
6653 | static void zcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
6654 | uint64_t value) | |
6655 | { | |
0ab5953b | 6656 | int cur_el = arm_current_el(env); |
5ef3cc56 | 6657 | int old_len = sve_vqm1_for_el(env, cur_el); |
0ab5953b RH |
6658 | int new_len; |
6659 | ||
5be5e8ed | 6660 | /* Bits other than [3:0] are RAZ/WI. */ |
7b351d98 | 6661 | QEMU_BUILD_BUG_ON(ARM_MAX_VQ > 16); |
5be5e8ed | 6662 | raw_write(env, ri, value & 0xf); |
0ab5953b RH |
6663 | |
6664 | /* | |
6665 | * Because we arrived here, we know both FP and SVE are enabled; | |
6666 | * otherwise we would have trapped access to the ZCR_ELn register. | |
6667 | */ | |
5ef3cc56 | 6668 | new_len = sve_vqm1_for_el(env, cur_el); |
0ab5953b RH |
6669 | if (new_len < old_len) { |
6670 | aarch64_sve_narrow_vq(env, new_len + 1); | |
6671 | } | |
5be5e8ed RH |
6672 | } |
6673 | ||
60360d82 RH |
6674 | static const ARMCPRegInfo zcr_reginfo[] = { |
6675 | { .name = "ZCR_EL1", .state = ARM_CP_STATE_AA64, | |
6676 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 0, | |
6677 | .access = PL1_RW, .type = ARM_CP_SVE, | |
6678 | .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[1]), | |
6679 | .writefn = zcr_write, .raw_writefn = raw_write }, | |
6680 | { .name = "ZCR_EL2", .state = ARM_CP_STATE_AA64, | |
6681 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 0, | |
6682 | .access = PL2_RW, .type = ARM_CP_SVE, | |
6683 | .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[2]), | |
6684 | .writefn = zcr_write, .raw_writefn = raw_write }, | |
6685 | { .name = "ZCR_EL3", .state = ARM_CP_STATE_AA64, | |
6686 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 2, .opc2 = 0, | |
6687 | .access = PL3_RW, .type = ARM_CP_SVE, | |
6688 | .fieldoffset = offsetof(CPUARMState, vfp.zcr_el[3]), | |
6689 | .writefn = zcr_write, .raw_writefn = raw_write }, | |
5be5e8ed RH |
6690 | }; |
6691 | ||
9e5ec745 RH |
6692 | #ifdef TARGET_AARCH64 |
6693 | static CPAccessResult access_tpidr2(CPUARMState *env, const ARMCPRegInfo *ri, | |
6694 | bool isread) | |
6695 | { | |
6696 | int el = arm_current_el(env); | |
6697 | ||
6698 | if (el == 0) { | |
6699 | uint64_t sctlr = arm_sctlr(env, el); | |
6700 | if (!(sctlr & SCTLR_EnTP2)) { | |
6701 | return CP_ACCESS_TRAP; | |
6702 | } | |
6703 | } | |
6704 | /* TODO: FEAT_FGT */ | |
6705 | if (el < 3 | |
6706 | && arm_feature(env, ARM_FEATURE_EL3) | |
6707 | && !(env->cp15.scr_el3 & SCR_ENTP2)) { | |
6708 | return CP_ACCESS_TRAP_EL3; | |
6709 | } | |
6710 | return CP_ACCESS_OK; | |
6711 | } | |
6712 | ||
d5b1223a RH |
6713 | static CPAccessResult access_esm(CPUARMState *env, const ARMCPRegInfo *ri, |
6714 | bool isread) | |
6715 | { | |
6716 | /* TODO: FEAT_FGT for SMPRI_EL1 but not SMPRIMAP_EL2 */ | |
6717 | if (arm_current_el(env) < 3 | |
6718 | && arm_feature(env, ARM_FEATURE_EL3) | |
6719 | && !FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, ESM)) { | |
6720 | return CP_ACCESS_TRAP_EL3; | |
6721 | } | |
6722 | return CP_ACCESS_OK; | |
6723 | } | |
6724 | ||
c37e6ac9 RH |
6725 | static void svcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
6726 | uint64_t value) | |
6727 | { | |
f84734b8 RH |
6728 | helper_set_pstate_sm(env, FIELD_EX64(value, SVCR, SM)); |
6729 | helper_set_pstate_za(env, FIELD_EX64(value, SVCR, ZA)); | |
6730 | arm_rebuild_hflags(env); | |
c37e6ac9 RH |
6731 | } |
6732 | ||
de561988 RH |
6733 | static void smcr_write(CPUARMState *env, const ARMCPRegInfo *ri, |
6734 | uint64_t value) | |
6735 | { | |
6736 | int cur_el = arm_current_el(env); | |
6737 | int old_len = sve_vqm1_for_el(env, cur_el); | |
6738 | int new_len; | |
6739 | ||
6740 | QEMU_BUILD_BUG_ON(ARM_MAX_VQ > R_SMCR_LEN_MASK + 1); | |
6741 | value &= R_SMCR_LEN_MASK | R_SMCR_FA64_MASK; | |
6742 | raw_write(env, ri, value); | |
6743 | ||
6744 | /* | |
6745 | * Note that it is CONSTRAINED UNPREDICTABLE what happens to ZA storage | |
6746 | * when SVL is widened (old values kept, or zeros). Choose to keep the | |
6747 | * current values for simplicity. But for QEMU internals, we must still | |
6748 | * apply the narrower SVL to the Zregs and Pregs -- see the comment | |
6749 | * above aarch64_sve_narrow_vq. | |
6750 | */ | |
6751 | new_len = sve_vqm1_for_el(env, cur_el); | |
6752 | if (new_len < old_len) { | |
6753 | aarch64_sve_narrow_vq(env, new_len + 1); | |
6754 | } | |
6755 | } | |
6756 | ||
9e5ec745 RH |
6757 | static const ARMCPRegInfo sme_reginfo[] = { |
6758 | { .name = "TPIDR2_EL0", .state = ARM_CP_STATE_AA64, | |
6759 | .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 5, | |
6760 | .access = PL0_RW, .accessfn = access_tpidr2, | |
6761 | .fieldoffset = offsetof(CPUARMState, cp15.tpidr2_el0) }, | |
c37e6ac9 RH |
6762 | { .name = "SVCR", .state = ARM_CP_STATE_AA64, |
6763 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 2, | |
6764 | .access = PL0_RW, .type = ARM_CP_SME, | |
6765 | .fieldoffset = offsetof(CPUARMState, svcr), | |
6766 | .writefn = svcr_write, .raw_writefn = raw_write }, | |
de561988 RH |
6767 | { .name = "SMCR_EL1", .state = ARM_CP_STATE_AA64, |
6768 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 6, | |
6769 | .access = PL1_RW, .type = ARM_CP_SME, | |
6770 | .fieldoffset = offsetof(CPUARMState, vfp.smcr_el[1]), | |
6771 | .writefn = smcr_write, .raw_writefn = raw_write }, | |
6772 | { .name = "SMCR_EL2", .state = ARM_CP_STATE_AA64, | |
6773 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 6, | |
6774 | .access = PL2_RW, .type = ARM_CP_SME, | |
6775 | .fieldoffset = offsetof(CPUARMState, vfp.smcr_el[2]), | |
6776 | .writefn = smcr_write, .raw_writefn = raw_write }, | |
6777 | { .name = "SMCR_EL3", .state = ARM_CP_STATE_AA64, | |
6778 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 2, .opc2 = 6, | |
6779 | .access = PL3_RW, .type = ARM_CP_SME, | |
6780 | .fieldoffset = offsetof(CPUARMState, vfp.smcr_el[3]), | |
6781 | .writefn = smcr_write, .raw_writefn = raw_write }, | |
d5b1223a RH |
6782 | { .name = "SMIDR_EL1", .state = ARM_CP_STATE_AA64, |
6783 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 6, | |
6784 | .access = PL1_R, .accessfn = access_aa64_tid1, | |
6785 | /* | |
6786 | * IMPLEMENTOR = 0 (software) | |
6787 | * REVISION = 0 (implementation defined) | |
6788 | * SMPS = 0 (no streaming execution priority in QEMU) | |
6789 | * AFFINITY = 0 (streaming sve mode not shared with other PEs) | |
6790 | */ | |
6791 | .type = ARM_CP_CONST, .resetvalue = 0, }, | |
6792 | /* | |
6793 | * Because SMIDR_EL1.SMPS is 0, SMPRI_EL1 and SMPRIMAP_EL2 are RES 0. | |
6794 | */ | |
6795 | { .name = "SMPRI_EL1", .state = ARM_CP_STATE_AA64, | |
6796 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 2, .opc2 = 4, | |
6797 | .access = PL1_RW, .accessfn = access_esm, | |
6798 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6799 | { .name = "SMPRIMAP_EL2", .state = ARM_CP_STATE_AA64, | |
6800 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 2, .opc2 = 5, | |
6801 | .access = PL2_RW, .accessfn = access_esm, | |
6802 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
9e5ec745 RH |
6803 | }; |
6804 | #endif /* TARGET_AARCH64 */ | |
6805 | ||
24183fb6 PM |
6806 | static void define_pmu_regs(ARMCPU *cpu) |
6807 | { | |
6808 | /* | |
6809 | * v7 performance monitor control register: same implementor | |
6810 | * field as main ID register, and we implement four counters in | |
6811 | * addition to the cycle count register. | |
6812 | */ | |
24526bb9 | 6813 | unsigned int i, pmcrn = pmu_num_counters(&cpu->env); |
24183fb6 PM |
6814 | ARMCPRegInfo pmcr = { |
6815 | .name = "PMCR", .cp = 15, .crn = 9, .crm = 12, .opc1 = 0, .opc2 = 0, | |
6816 | .access = PL0_RW, | |
6817 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
6818 | .fieldoffset = offsetoflow32(CPUARMState, cp15.c9_pmcr), | |
6819 | .accessfn = pmreg_access, .writefn = pmcr_write, | |
6820 | .raw_writefn = raw_write, | |
6821 | }; | |
6822 | ARMCPRegInfo pmcr64 = { | |
6823 | .name = "PMCR_EL0", .state = ARM_CP_STATE_AA64, | |
6824 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 0, | |
6825 | .access = PL0_RW, .accessfn = pmreg_access, | |
6826 | .type = ARM_CP_IO, | |
6827 | .fieldoffset = offsetof(CPUARMState, cp15.c9_pmcr), | |
24526bb9 | 6828 | .resetvalue = cpu->isar.reset_pmcr_el0, |
24183fb6 PM |
6829 | .writefn = pmcr_write, .raw_writefn = raw_write, |
6830 | }; | |
24526bb9 | 6831 | |
24183fb6 PM |
6832 | define_one_arm_cp_reg(cpu, &pmcr); |
6833 | define_one_arm_cp_reg(cpu, &pmcr64); | |
6834 | for (i = 0; i < pmcrn; i++) { | |
6835 | char *pmevcntr_name = g_strdup_printf("PMEVCNTR%d", i); | |
6836 | char *pmevcntr_el0_name = g_strdup_printf("PMEVCNTR%d_EL0", i); | |
6837 | char *pmevtyper_name = g_strdup_printf("PMEVTYPER%d", i); | |
6838 | char *pmevtyper_el0_name = g_strdup_printf("PMEVTYPER%d_EL0", i); | |
6839 | ARMCPRegInfo pmev_regs[] = { | |
6840 | { .name = pmevcntr_name, .cp = 15, .crn = 14, | |
6841 | .crm = 8 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, | |
6842 | .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, | |
6843 | .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, | |
99a50d1a | 6844 | .accessfn = pmreg_access_xevcntr }, |
24183fb6 PM |
6845 | { .name = pmevcntr_el0_name, .state = ARM_CP_STATE_AA64, |
6846 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 8 | (3 & (i >> 3)), | |
99a50d1a | 6847 | .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access_xevcntr, |
24183fb6 PM |
6848 | .type = ARM_CP_IO, |
6849 | .readfn = pmevcntr_readfn, .writefn = pmevcntr_writefn, | |
6850 | .raw_readfn = pmevcntr_rawread, | |
6851 | .raw_writefn = pmevcntr_rawwrite }, | |
6852 | { .name = pmevtyper_name, .cp = 15, .crn = 14, | |
6853 | .crm = 12 | (3 & (i >> 3)), .opc1 = 0, .opc2 = i & 7, | |
6854 | .access = PL0_RW, .type = ARM_CP_IO | ARM_CP_ALIAS, | |
6855 | .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, | |
6856 | .accessfn = pmreg_access }, | |
6857 | { .name = pmevtyper_el0_name, .state = ARM_CP_STATE_AA64, | |
6858 | .opc0 = 3, .opc1 = 3, .crn = 14, .crm = 12 | (3 & (i >> 3)), | |
6859 | .opc2 = i & 7, .access = PL0_RW, .accessfn = pmreg_access, | |
6860 | .type = ARM_CP_IO, | |
6861 | .readfn = pmevtyper_readfn, .writefn = pmevtyper_writefn, | |
6862 | .raw_writefn = pmevtyper_rawwrite }, | |
24183fb6 PM |
6863 | }; |
6864 | define_arm_cp_regs(cpu, pmev_regs); | |
6865 | g_free(pmevcntr_name); | |
6866 | g_free(pmevcntr_el0_name); | |
6867 | g_free(pmevtyper_name); | |
6868 | g_free(pmevtyper_el0_name); | |
6869 | } | |
a793bcd0 | 6870 | if (cpu_isar_feature(aa32_pmuv3p1, cpu)) { |
24183fb6 PM |
6871 | ARMCPRegInfo v81_pmu_regs[] = { |
6872 | { .name = "PMCEID2", .state = ARM_CP_STATE_AA32, | |
6873 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 4, | |
6874 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
6875 | .resetvalue = extract64(cpu->pmceid0, 32, 32) }, | |
6876 | { .name = "PMCEID3", .state = ARM_CP_STATE_AA32, | |
6877 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 5, | |
6878 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
6879 | .resetvalue = extract64(cpu->pmceid1, 32, 32) }, | |
24183fb6 PM |
6880 | }; |
6881 | define_arm_cp_regs(cpu, v81_pmu_regs); | |
6882 | } | |
a793bcd0 | 6883 | if (cpu_isar_feature(any_pmuv3p4, cpu)) { |
15dd1ebd PM |
6884 | static const ARMCPRegInfo v84_pmmir = { |
6885 | .name = "PMMIR_EL1", .state = ARM_CP_STATE_BOTH, | |
6886 | .opc0 = 3, .opc1 = 0, .crn = 9, .crm = 14, .opc2 = 6, | |
6887 | .access = PL1_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
6888 | .resetvalue = 0 | |
6889 | }; | |
6890 | define_one_arm_cp_reg(cpu, &v84_pmmir); | |
6891 | } | |
24183fb6 PM |
6892 | } |
6893 | ||
9b37a28c FR |
6894 | /* |
6895 | * We don't know until after realize whether there's a GICv3 | |
96a8b92e PM |
6896 | * attached, and that is what registers the gicv3 sysregs. |
6897 | * So we have to fill in the GIC fields in ID_PFR/ID_PFR1_EL1/ID_AA64PFR0_EL1 | |
6898 | * at runtime. | |
6899 | */ | |
6900 | static uint64_t id_pfr1_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
6901 | { | |
2fc0cc0e | 6902 | ARMCPU *cpu = env_archcpu(env); |
8a130a7b | 6903 | uint64_t pfr1 = cpu->isar.id_pfr1; |
96a8b92e PM |
6904 | |
6905 | if (env->gicv3state) { | |
6906 | pfr1 |= 1 << 28; | |
6907 | } | |
6908 | return pfr1; | |
6909 | } | |
6910 | ||
976b99b6 | 6911 | #ifndef CONFIG_USER_ONLY |
96a8b92e PM |
6912 | static uint64_t id_aa64pfr0_read(CPUARMState *env, const ARMCPRegInfo *ri) |
6913 | { | |
2fc0cc0e | 6914 | ARMCPU *cpu = env_archcpu(env); |
47576b94 | 6915 | uint64_t pfr0 = cpu->isar.id_aa64pfr0; |
96a8b92e PM |
6916 | |
6917 | if (env->gicv3state) { | |
6918 | pfr0 |= 1 << 24; | |
6919 | } | |
6920 | return pfr0; | |
6921 | } | |
976b99b6 | 6922 | #endif |
96a8b92e | 6923 | |
9b37a28c FR |
6924 | /* |
6925 | * Shared logic between LORID and the rest of the LOR* registers. | |
9bd268ba | 6926 | * Secure state exclusion has already been dealt with. |
2d7137c1 | 6927 | */ |
9bd268ba RDC |
6928 | static CPAccessResult access_lor_ns(CPUARMState *env, |
6929 | const ARMCPRegInfo *ri, bool isread) | |
2d7137c1 RH |
6930 | { |
6931 | int el = arm_current_el(env); | |
6932 | ||
6933 | if (el < 2 && (arm_hcr_el2_eff(env) & HCR_TLOR)) { | |
6934 | return CP_ACCESS_TRAP_EL2; | |
6935 | } | |
6936 | if (el < 3 && (env->cp15.scr_el3 & SCR_TLOR)) { | |
6937 | return CP_ACCESS_TRAP_EL3; | |
6938 | } | |
6939 | return CP_ACCESS_OK; | |
6940 | } | |
6941 | ||
2d7137c1 RH |
6942 | static CPAccessResult access_lor_other(CPUARMState *env, |
6943 | const ARMCPRegInfo *ri, bool isread) | |
6944 | { | |
6945 | if (arm_is_secure_below_el3(env)) { | |
6946 | /* Access denied in secure mode. */ | |
6947 | return CP_ACCESS_TRAP; | |
6948 | } | |
9bd268ba | 6949 | return access_lor_ns(env, ri, isread); |
2d7137c1 RH |
6950 | } |
6951 | ||
d8564ee4 RH |
6952 | /* |
6953 | * A trivial implementation of ARMv8.1-LOR leaves all of these | |
6954 | * registers fixed at 0, which indicates that there are zero | |
6955 | * supported Limited Ordering regions. | |
6956 | */ | |
6957 | static const ARMCPRegInfo lor_reginfo[] = { | |
6958 | { .name = "LORSA_EL1", .state = ARM_CP_STATE_AA64, | |
6959 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 0, | |
6960 | .access = PL1_RW, .accessfn = access_lor_other, | |
6961 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6962 | { .name = "LOREA_EL1", .state = ARM_CP_STATE_AA64, | |
6963 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 1, | |
6964 | .access = PL1_RW, .accessfn = access_lor_other, | |
6965 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6966 | { .name = "LORN_EL1", .state = ARM_CP_STATE_AA64, | |
6967 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 2, | |
6968 | .access = PL1_RW, .accessfn = access_lor_other, | |
6969 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6970 | { .name = "LORC_EL1", .state = ARM_CP_STATE_AA64, | |
6971 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 3, | |
6972 | .access = PL1_RW, .accessfn = access_lor_other, | |
6973 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
6974 | { .name = "LORID_EL1", .state = ARM_CP_STATE_AA64, | |
6975 | .opc0 = 3, .opc1 = 0, .crn = 10, .crm = 4, .opc2 = 7, | |
9bd268ba | 6976 | .access = PL1_R, .accessfn = access_lor_ns, |
d8564ee4 | 6977 | .type = ARM_CP_CONST, .resetvalue = 0 }, |
d8564ee4 RH |
6978 | }; |
6979 | ||
967aa94f RH |
6980 | #ifdef TARGET_AARCH64 |
6981 | static CPAccessResult access_pauth(CPUARMState *env, const ARMCPRegInfo *ri, | |
6982 | bool isread) | |
6983 | { | |
6984 | int el = arm_current_el(env); | |
6985 | ||
6986 | if (el < 2 && | |
07b034ea | 6987 | arm_is_el2_enabled(env) && |
967aa94f RH |
6988 | !(arm_hcr_el2_eff(env) & HCR_APK)) { |
6989 | return CP_ACCESS_TRAP_EL2; | |
6990 | } | |
6991 | if (el < 3 && | |
6992 | arm_feature(env, ARM_FEATURE_EL3) && | |
6993 | !(env->cp15.scr_el3 & SCR_APK)) { | |
6994 | return CP_ACCESS_TRAP_EL3; | |
6995 | } | |
6996 | return CP_ACCESS_OK; | |
6997 | } | |
6998 | ||
6999 | static const ARMCPRegInfo pauth_reginfo[] = { | |
7000 | { .name = "APDAKEYLO_EL1", .state = ARM_CP_STATE_AA64, | |
7001 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 0, | |
7002 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7003 | .fieldoffset = offsetof(CPUARMState, keys.apda.lo) }, |
967aa94f RH |
7004 | { .name = "APDAKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7005 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 1, | |
7006 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7007 | .fieldoffset = offsetof(CPUARMState, keys.apda.hi) }, |
967aa94f RH |
7008 | { .name = "APDBKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7009 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 2, | |
7010 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7011 | .fieldoffset = offsetof(CPUARMState, keys.apdb.lo) }, |
967aa94f RH |
7012 | { .name = "APDBKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7013 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 2, .opc2 = 3, | |
7014 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7015 | .fieldoffset = offsetof(CPUARMState, keys.apdb.hi) }, |
967aa94f RH |
7016 | { .name = "APGAKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7017 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 3, .opc2 = 0, | |
7018 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7019 | .fieldoffset = offsetof(CPUARMState, keys.apga.lo) }, |
967aa94f RH |
7020 | { .name = "APGAKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7021 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 3, .opc2 = 1, | |
7022 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7023 | .fieldoffset = offsetof(CPUARMState, keys.apga.hi) }, |
967aa94f RH |
7024 | { .name = "APIAKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7025 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 0, | |
7026 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7027 | .fieldoffset = offsetof(CPUARMState, keys.apia.lo) }, |
967aa94f RH |
7028 | { .name = "APIAKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7029 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 1, | |
7030 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7031 | .fieldoffset = offsetof(CPUARMState, keys.apia.hi) }, |
967aa94f RH |
7032 | { .name = "APIBKEYLO_EL1", .state = ARM_CP_STATE_AA64, |
7033 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 2, | |
7034 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7035 | .fieldoffset = offsetof(CPUARMState, keys.apib.lo) }, |
967aa94f RH |
7036 | { .name = "APIBKEYHI_EL1", .state = ARM_CP_STATE_AA64, |
7037 | .opc0 = 3, .opc1 = 0, .crn = 2, .crm = 1, .opc2 = 3, | |
7038 | .access = PL1_RW, .accessfn = access_pauth, | |
108b3ba8 | 7039 | .fieldoffset = offsetof(CPUARMState, keys.apib.hi) }, |
967aa94f | 7040 | }; |
de390645 | 7041 | |
84940ed8 RC |
7042 | static const ARMCPRegInfo tlbirange_reginfo[] = { |
7043 | { .name = "TLBI_RVAE1IS", .state = ARM_CP_STATE_AA64, | |
7044 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 1, | |
0f66d223 | 7045 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7046 | .writefn = tlbi_aa64_rvae1is_write }, |
7047 | { .name = "TLBI_RVAAE1IS", .state = ARM_CP_STATE_AA64, | |
7048 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 3, | |
0f66d223 | 7049 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7050 | .writefn = tlbi_aa64_rvae1is_write }, |
7051 | { .name = "TLBI_RVALE1IS", .state = ARM_CP_STATE_AA64, | |
7052 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 5, | |
0f66d223 | 7053 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7054 | .writefn = tlbi_aa64_rvae1is_write }, |
7055 | { .name = "TLBI_RVAALE1IS", .state = ARM_CP_STATE_AA64, | |
7056 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 2, .opc2 = 7, | |
0f66d223 | 7057 | .access = PL1_W, .accessfn = access_ttlbis, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7058 | .writefn = tlbi_aa64_rvae1is_write }, |
7059 | { .name = "TLBI_RVAE1OS", .state = ARM_CP_STATE_AA64, | |
7060 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 1, | |
fe3ca86c | 7061 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7062 | .writefn = tlbi_aa64_rvae1is_write }, |
7063 | { .name = "TLBI_RVAAE1OS", .state = ARM_CP_STATE_AA64, | |
7064 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 3, | |
fe3ca86c | 7065 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7066 | .writefn = tlbi_aa64_rvae1is_write }, |
7067 | { .name = "TLBI_RVALE1OS", .state = ARM_CP_STATE_AA64, | |
7068 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 5, | |
fe3ca86c | 7069 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7070 | .writefn = tlbi_aa64_rvae1is_write }, |
7071 | { .name = "TLBI_RVAALE1OS", .state = ARM_CP_STATE_AA64, | |
7072 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 5, .opc2 = 7, | |
fe3ca86c | 7073 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7074 | .writefn = tlbi_aa64_rvae1is_write }, |
7075 | { .name = "TLBI_RVAE1", .state = ARM_CP_STATE_AA64, | |
7076 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 1, | |
4870f38b | 7077 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7078 | .writefn = tlbi_aa64_rvae1_write }, |
7079 | { .name = "TLBI_RVAAE1", .state = ARM_CP_STATE_AA64, | |
7080 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 3, | |
4870f38b | 7081 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7082 | .writefn = tlbi_aa64_rvae1_write }, |
7083 | { .name = "TLBI_RVALE1", .state = ARM_CP_STATE_AA64, | |
7084 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 5, | |
4870f38b | 7085 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7086 | .writefn = tlbi_aa64_rvae1_write }, |
7087 | { .name = "TLBI_RVAALE1", .state = ARM_CP_STATE_AA64, | |
7088 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 6, .opc2 = 7, | |
4870f38b | 7089 | .access = PL1_W, .accessfn = access_ttlb, .type = ARM_CP_NO_RAW, |
84940ed8 RC |
7090 | .writefn = tlbi_aa64_rvae1_write }, |
7091 | { .name = "TLBI_RIPAS2E1IS", .state = ARM_CP_STATE_AA64, | |
7092 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 2, | |
575a94af RH |
7093 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7094 | .writefn = tlbi_aa64_ripas2e1is_write }, | |
84940ed8 RC |
7095 | { .name = "TLBI_RIPAS2LE1IS", .state = ARM_CP_STATE_AA64, |
7096 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 0, .opc2 = 6, | |
575a94af RH |
7097 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7098 | .writefn = tlbi_aa64_ripas2e1is_write }, | |
84940ed8 RC |
7099 | { .name = "TLBI_RVAE2IS", .state = ARM_CP_STATE_AA64, |
7100 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 2, .opc2 = 1, | |
696ba377 | 7101 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7102 | .writefn = tlbi_aa64_rvae2is_write }, |
7103 | { .name = "TLBI_RVALE2IS", .state = ARM_CP_STATE_AA64, | |
7104 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 2, .opc2 = 5, | |
696ba377 | 7105 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7106 | .writefn = tlbi_aa64_rvae2is_write }, |
7107 | { .name = "TLBI_RIPAS2E1", .state = ARM_CP_STATE_AA64, | |
7108 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 2, | |
575a94af RH |
7109 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7110 | .writefn = tlbi_aa64_ripas2e1_write }, | |
7111 | { .name = "TLBI_RIPAS2LE1", .state = ARM_CP_STATE_AA64, | |
84940ed8 | 7112 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 6, |
575a94af RH |
7113 | .access = PL2_W, .type = ARM_CP_NO_RAW, |
7114 | .writefn = tlbi_aa64_ripas2e1_write }, | |
84940ed8 RC |
7115 | { .name = "TLBI_RVAE2OS", .state = ARM_CP_STATE_AA64, |
7116 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 5, .opc2 = 1, | |
696ba377 | 7117 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7118 | .writefn = tlbi_aa64_rvae2is_write }, |
7119 | { .name = "TLBI_RVALE2OS", .state = ARM_CP_STATE_AA64, | |
7120 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 5, .opc2 = 5, | |
696ba377 | 7121 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7122 | .writefn = tlbi_aa64_rvae2is_write }, |
7123 | { .name = "TLBI_RVAE2", .state = ARM_CP_STATE_AA64, | |
7124 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 6, .opc2 = 1, | |
696ba377 | 7125 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7126 | .writefn = tlbi_aa64_rvae2_write }, |
7127 | { .name = "TLBI_RVALE2", .state = ARM_CP_STATE_AA64, | |
7128 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 6, .opc2 = 5, | |
696ba377 | 7129 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
84940ed8 RC |
7130 | .writefn = tlbi_aa64_rvae2_write }, |
7131 | { .name = "TLBI_RVAE3IS", .state = ARM_CP_STATE_AA64, | |
7132 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 2, .opc2 = 1, | |
7133 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7134 | .writefn = tlbi_aa64_rvae3is_write }, | |
7135 | { .name = "TLBI_RVALE3IS", .state = ARM_CP_STATE_AA64, | |
7136 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 2, .opc2 = 5, | |
7137 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7138 | .writefn = tlbi_aa64_rvae3is_write }, | |
7139 | { .name = "TLBI_RVAE3OS", .state = ARM_CP_STATE_AA64, | |
7140 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 5, .opc2 = 1, | |
7141 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7142 | .writefn = tlbi_aa64_rvae3is_write }, | |
7143 | { .name = "TLBI_RVALE3OS", .state = ARM_CP_STATE_AA64, | |
7144 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 5, .opc2 = 5, | |
7145 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7146 | .writefn = tlbi_aa64_rvae3is_write }, | |
7147 | { .name = "TLBI_RVAE3", .state = ARM_CP_STATE_AA64, | |
7148 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 6, .opc2 = 1, | |
7149 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7150 | .writefn = tlbi_aa64_rvae3_write }, | |
7151 | { .name = "TLBI_RVALE3", .state = ARM_CP_STATE_AA64, | |
7152 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 6, .opc2 = 5, | |
7153 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7154 | .writefn = tlbi_aa64_rvae3_write }, | |
84940ed8 RC |
7155 | }; |
7156 | ||
7113d618 RC |
7157 | static const ARMCPRegInfo tlbios_reginfo[] = { |
7158 | { .name = "TLBI_VMALLE1OS", .state = ARM_CP_STATE_AA64, | |
7159 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 0, | |
fe3ca86c | 7160 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
7113d618 | 7161 | .writefn = tlbi_aa64_vmalle1is_write }, |
b7469ef9 IH |
7162 | { .name = "TLBI_VAE1OS", .state = ARM_CP_STATE_AA64, |
7163 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 1, | |
fe3ca86c | 7164 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 | 7165 | .writefn = tlbi_aa64_vae1is_write }, |
7113d618 RC |
7166 | { .name = "TLBI_ASIDE1OS", .state = ARM_CP_STATE_AA64, |
7167 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 2, | |
fe3ca86c | 7168 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
7113d618 | 7169 | .writefn = tlbi_aa64_vmalle1is_write }, |
b7469ef9 IH |
7170 | { .name = "TLBI_VAAE1OS", .state = ARM_CP_STATE_AA64, |
7171 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 3, | |
fe3ca86c | 7172 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 IH |
7173 | .writefn = tlbi_aa64_vae1is_write }, |
7174 | { .name = "TLBI_VALE1OS", .state = ARM_CP_STATE_AA64, | |
7175 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 5, | |
fe3ca86c | 7176 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 IH |
7177 | .writefn = tlbi_aa64_vae1is_write }, |
7178 | { .name = "TLBI_VAALE1OS", .state = ARM_CP_STATE_AA64, | |
7179 | .opc0 = 1, .opc1 = 0, .crn = 8, .crm = 1, .opc2 = 7, | |
fe3ca86c | 7180 | .access = PL1_W, .accessfn = access_ttlbos, .type = ARM_CP_NO_RAW, |
b7469ef9 | 7181 | .writefn = tlbi_aa64_vae1is_write }, |
7113d618 RC |
7182 | { .name = "TLBI_ALLE2OS", .state = ARM_CP_STATE_AA64, |
7183 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 0, | |
696ba377 | 7184 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
7113d618 | 7185 | .writefn = tlbi_aa64_alle2is_write }, |
b7469ef9 IH |
7186 | { .name = "TLBI_VAE2OS", .state = ARM_CP_STATE_AA64, |
7187 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 1, | |
696ba377 | 7188 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
b7469ef9 | 7189 | .writefn = tlbi_aa64_vae2is_write }, |
7113d618 RC |
7190 | { .name = "TLBI_ALLE1OS", .state = ARM_CP_STATE_AA64, |
7191 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 4, | |
7192 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
7193 | .writefn = tlbi_aa64_alle1is_write }, | |
b7469ef9 IH |
7194 | { .name = "TLBI_VALE2OS", .state = ARM_CP_STATE_AA64, |
7195 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 5, | |
696ba377 | 7196 | .access = PL2_W, .type = ARM_CP_NO_RAW | ARM_CP_EL3_NO_EL2_UNDEF, |
b7469ef9 | 7197 | .writefn = tlbi_aa64_vae2is_write }, |
7113d618 RC |
7198 | { .name = "TLBI_VMALLS12E1OS", .state = ARM_CP_STATE_AA64, |
7199 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 1, .opc2 = 6, | |
7200 | .access = PL2_W, .type = ARM_CP_NO_RAW, | |
7201 | .writefn = tlbi_aa64_alle1is_write }, | |
7202 | { .name = "TLBI_IPAS2E1OS", .state = ARM_CP_STATE_AA64, | |
7203 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 0, | |
7204 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7205 | { .name = "TLBI_RIPAS2E1OS", .state = ARM_CP_STATE_AA64, | |
7206 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 3, | |
7207 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7208 | { .name = "TLBI_IPAS2LE1OS", .state = ARM_CP_STATE_AA64, | |
7209 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 4, | |
7210 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7211 | { .name = "TLBI_RIPAS2LE1OS", .state = ARM_CP_STATE_AA64, | |
7212 | .opc0 = 1, .opc1 = 4, .crn = 8, .crm = 4, .opc2 = 7, | |
7213 | .access = PL2_W, .type = ARM_CP_NOP }, | |
7214 | { .name = "TLBI_ALLE3OS", .state = ARM_CP_STATE_AA64, | |
7215 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 1, .opc2 = 0, | |
7216 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7217 | .writefn = tlbi_aa64_alle3is_write }, | |
b7469ef9 IH |
7218 | { .name = "TLBI_VAE3OS", .state = ARM_CP_STATE_AA64, |
7219 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 1, .opc2 = 1, | |
7220 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7221 | .writefn = tlbi_aa64_vae3is_write }, | |
7222 | { .name = "TLBI_VALE3OS", .state = ARM_CP_STATE_AA64, | |
7223 | .opc0 = 1, .opc1 = 6, .crn = 8, .crm = 1, .opc2 = 5, | |
7224 | .access = PL3_W, .type = ARM_CP_NO_RAW, | |
7225 | .writefn = tlbi_aa64_vae3is_write }, | |
7113d618 RC |
7226 | }; |
7227 | ||
de390645 RH |
7228 | static uint64_t rndr_readfn(CPUARMState *env, const ARMCPRegInfo *ri) |
7229 | { | |
7230 | Error *err = NULL; | |
7231 | uint64_t ret; | |
7232 | ||
7233 | /* Success sets NZCV = 0000. */ | |
7234 | env->NF = env->CF = env->VF = 0, env->ZF = 1; | |
7235 | ||
7236 | if (qemu_guest_getrandom(&ret, sizeof(ret), &err) < 0) { | |
7237 | /* | |
7238 | * ??? Failed, for unknown reasons in the crypto subsystem. | |
7239 | * The best we can do is log the reason and return the | |
7240 | * timed-out indication to the guest. There is no reason | |
7241 | * we know to expect this failure to be transitory, so the | |
7242 | * guest may well hang retrying the operation. | |
7243 | */ | |
7244 | qemu_log_mask(LOG_UNIMP, "%s: Crypto failure: %s", | |
7245 | ri->name, error_get_pretty(err)); | |
7246 | error_free(err); | |
7247 | ||
7248 | env->ZF = 0; /* NZCF = 0100 */ | |
7249 | return 0; | |
7250 | } | |
7251 | return ret; | |
7252 | } | |
7253 | ||
7254 | /* We do not support re-seeding, so the two registers operate the same. */ | |
7255 | static const ARMCPRegInfo rndr_reginfo[] = { | |
7256 | { .name = "RNDR", .state = ARM_CP_STATE_AA64, | |
7257 | .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END | ARM_CP_IO, | |
7258 | .opc0 = 3, .opc1 = 3, .crn = 2, .crm = 4, .opc2 = 0, | |
7259 | .access = PL0_R, .readfn = rndr_readfn }, | |
7260 | { .name = "RNDRRS", .state = ARM_CP_STATE_AA64, | |
7261 | .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END | ARM_CP_IO, | |
7262 | .opc0 = 3, .opc1 = 3, .crn = 2, .crm = 4, .opc2 = 1, | |
7263 | .access = PL0_R, .readfn = rndr_readfn }, | |
de390645 | 7264 | }; |
0d57b499 BM |
7265 | |
7266 | #ifndef CONFIG_USER_ONLY | |
7267 | static void dccvap_writefn(CPUARMState *env, const ARMCPRegInfo *opaque, | |
7268 | uint64_t value) | |
7269 | { | |
7270 | ARMCPU *cpu = env_archcpu(env); | |
7271 | /* CTR_EL0 System register -> DminLine, bits [19:16] */ | |
7272 | uint64_t dline_size = 4 << ((cpu->ctr >> 16) & 0xF); | |
7273 | uint64_t vaddr_in = (uint64_t) value; | |
7274 | uint64_t vaddr = vaddr_in & ~(dline_size - 1); | |
7275 | void *haddr; | |
7276 | int mem_idx = cpu_mmu_index(env, false); | |
7277 | ||
7278 | /* This won't be crossing page boundaries */ | |
7279 | haddr = probe_read(env, vaddr, dline_size, mem_idx, GETPC()); | |
7280 | if (haddr) { | |
7281 | ||
7282 | ram_addr_t offset; | |
7283 | MemoryRegion *mr; | |
7284 | ||
7285 | /* RCU lock is already being held */ | |
7286 | mr = memory_region_from_host(haddr, &offset); | |
7287 | ||
7288 | if (mr) { | |
4dfe59d1 | 7289 | memory_region_writeback(mr, offset, dline_size); |
0d57b499 BM |
7290 | } |
7291 | } | |
7292 | } | |
7293 | ||
7294 | static const ARMCPRegInfo dcpop_reg[] = { | |
7295 | { .name = "DC_CVAP", .state = ARM_CP_STATE_AA64, | |
7296 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 1, | |
7297 | .access = PL0_W, .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END, | |
1bed4d2e | 7298 | .accessfn = aa64_cacheop_poc_access, .writefn = dccvap_writefn }, |
0d57b499 BM |
7299 | }; |
7300 | ||
7301 | static const ARMCPRegInfo dcpodp_reg[] = { | |
7302 | { .name = "DC_CVADP", .state = ARM_CP_STATE_AA64, | |
7303 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 1, | |
7304 | .access = PL0_W, .type = ARM_CP_NO_RAW | ARM_CP_SUPPRESS_TB_END, | |
1bed4d2e | 7305 | .accessfn = aa64_cacheop_poc_access, .writefn = dccvap_writefn }, |
0d57b499 BM |
7306 | }; |
7307 | #endif /*CONFIG_USER_ONLY*/ | |
7308 | ||
4b779ceb RH |
7309 | static CPAccessResult access_aa64_tid5(CPUARMState *env, const ARMCPRegInfo *ri, |
7310 | bool isread) | |
7311 | { | |
7312 | if ((arm_current_el(env) < 2) && (arm_hcr_el2_eff(env) & HCR_TID5)) { | |
7313 | return CP_ACCESS_TRAP_EL2; | |
7314 | } | |
7315 | ||
7316 | return CP_ACCESS_OK; | |
7317 | } | |
7318 | ||
7319 | static CPAccessResult access_mte(CPUARMState *env, const ARMCPRegInfo *ri, | |
7320 | bool isread) | |
7321 | { | |
7322 | int el = arm_current_el(env); | |
7323 | ||
0da067f2 | 7324 | if (el < 2 && arm_is_el2_enabled(env)) { |
4301acd7 RH |
7325 | uint64_t hcr = arm_hcr_el2_eff(env); |
7326 | if (!(hcr & HCR_ATA) && (!(hcr & HCR_E2H) || !(hcr & HCR_TGE))) { | |
7327 | return CP_ACCESS_TRAP_EL2; | |
7328 | } | |
4b779ceb RH |
7329 | } |
7330 | if (el < 3 && | |
7331 | arm_feature(env, ARM_FEATURE_EL3) && | |
7332 | !(env->cp15.scr_el3 & SCR_ATA)) { | |
7333 | return CP_ACCESS_TRAP_EL3; | |
7334 | } | |
7335 | return CP_ACCESS_OK; | |
7336 | } | |
7337 | ||
7338 | static uint64_t tco_read(CPUARMState *env, const ARMCPRegInfo *ri) | |
7339 | { | |
7340 | return env->pstate & PSTATE_TCO; | |
7341 | } | |
7342 | ||
7343 | static void tco_write(CPUARMState *env, const ARMCPRegInfo *ri, uint64_t val) | |
7344 | { | |
7345 | env->pstate = (env->pstate & ~PSTATE_TCO) | (val & PSTATE_TCO); | |
7346 | } | |
7347 | ||
7348 | static const ARMCPRegInfo mte_reginfo[] = { | |
7349 | { .name = "TFSRE0_EL1", .state = ARM_CP_STATE_AA64, | |
7350 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 6, .opc2 = 1, | |
7351 | .access = PL1_RW, .accessfn = access_mte, | |
7352 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[0]) }, | |
7353 | { .name = "TFSR_EL1", .state = ARM_CP_STATE_AA64, | |
7354 | .opc0 = 3, .opc1 = 0, .crn = 5, .crm = 6, .opc2 = 0, | |
7355 | .access = PL1_RW, .accessfn = access_mte, | |
7356 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[1]) }, | |
7357 | { .name = "TFSR_EL2", .state = ARM_CP_STATE_AA64, | |
7358 | .opc0 = 3, .opc1 = 4, .crn = 5, .crm = 6, .opc2 = 0, | |
7359 | .access = PL2_RW, .accessfn = access_mte, | |
7360 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[2]) }, | |
7361 | { .name = "TFSR_EL3", .state = ARM_CP_STATE_AA64, | |
7362 | .opc0 = 3, .opc1 = 6, .crn = 5, .crm = 6, .opc2 = 0, | |
7363 | .access = PL3_RW, | |
7364 | .fieldoffset = offsetof(CPUARMState, cp15.tfsr_el[3]) }, | |
7365 | { .name = "RGSR_EL1", .state = ARM_CP_STATE_AA64, | |
7366 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 5, | |
7367 | .access = PL1_RW, .accessfn = access_mte, | |
7368 | .fieldoffset = offsetof(CPUARMState, cp15.rgsr_el1) }, | |
7369 | { .name = "GCR_EL1", .state = ARM_CP_STATE_AA64, | |
7370 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 6, | |
7371 | .access = PL1_RW, .accessfn = access_mte, | |
7372 | .fieldoffset = offsetof(CPUARMState, cp15.gcr_el1) }, | |
7373 | { .name = "GMID_EL1", .state = ARM_CP_STATE_AA64, | |
7374 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 4, | |
7375 | .access = PL1_R, .accessfn = access_aa64_tid5, | |
7376 | .type = ARM_CP_CONST, .resetvalue = GMID_EL1_BS }, | |
7377 | { .name = "TCO", .state = ARM_CP_STATE_AA64, | |
7378 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 7, | |
7379 | .type = ARM_CP_NO_RAW, | |
7380 | .access = PL0_RW, .readfn = tco_read, .writefn = tco_write }, | |
5463df16 RH |
7381 | { .name = "DC_IGVAC", .state = ARM_CP_STATE_AA64, |
7382 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 3, | |
7383 | .type = ARM_CP_NOP, .access = PL1_W, | |
7384 | .accessfn = aa64_cacheop_poc_access }, | |
7385 | { .name = "DC_IGSW", .state = ARM_CP_STATE_AA64, | |
7386 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 4, | |
7387 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7388 | { .name = "DC_IGDVAC", .state = ARM_CP_STATE_AA64, | |
7389 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 5, | |
7390 | .type = ARM_CP_NOP, .access = PL1_W, | |
7391 | .accessfn = aa64_cacheop_poc_access }, | |
7392 | { .name = "DC_IGDSW", .state = ARM_CP_STATE_AA64, | |
7393 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 6, .opc2 = 6, | |
7394 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7395 | { .name = "DC_CGSW", .state = ARM_CP_STATE_AA64, | |
7396 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 4, | |
7397 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7398 | { .name = "DC_CGDSW", .state = ARM_CP_STATE_AA64, | |
7399 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 10, .opc2 = 6, | |
7400 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7401 | { .name = "DC_CIGSW", .state = ARM_CP_STATE_AA64, | |
7402 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 4, | |
7403 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
7404 | { .name = "DC_CIGDSW", .state = ARM_CP_STATE_AA64, | |
7405 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 14, .opc2 = 6, | |
7406 | .type = ARM_CP_NOP, .access = PL1_W, .accessfn = access_tsw }, | |
4b779ceb RH |
7407 | }; |
7408 | ||
7409 | static const ARMCPRegInfo mte_tco_ro_reginfo[] = { | |
7410 | { .name = "TCO", .state = ARM_CP_STATE_AA64, | |
7411 | .opc0 = 3, .opc1 = 3, .crn = 4, .crm = 2, .opc2 = 7, | |
7412 | .type = ARM_CP_CONST, .access = PL0_RW, }, | |
4b779ceb | 7413 | }; |
5463df16 RH |
7414 | |
7415 | static const ARMCPRegInfo mte_el0_cacheop_reginfo[] = { | |
7416 | { .name = "DC_CGVAC", .state = ARM_CP_STATE_AA64, | |
7417 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 3, | |
7418 | .type = ARM_CP_NOP, .access = PL0_W, | |
7419 | .accessfn = aa64_cacheop_poc_access }, | |
7420 | { .name = "DC_CGDVAC", .state = ARM_CP_STATE_AA64, | |
7421 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 10, .opc2 = 5, | |
7422 | .type = ARM_CP_NOP, .access = PL0_W, | |
7423 | .accessfn = aa64_cacheop_poc_access }, | |
7424 | { .name = "DC_CGVAP", .state = ARM_CP_STATE_AA64, | |
7425 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 3, | |
7426 | .type = ARM_CP_NOP, .access = PL0_W, | |
7427 | .accessfn = aa64_cacheop_poc_access }, | |
7428 | { .name = "DC_CGDVAP", .state = ARM_CP_STATE_AA64, | |
7429 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 12, .opc2 = 5, | |
7430 | .type = ARM_CP_NOP, .access = PL0_W, | |
7431 | .accessfn = aa64_cacheop_poc_access }, | |
7432 | { .name = "DC_CGVADP", .state = ARM_CP_STATE_AA64, | |
7433 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 3, | |
7434 | .type = ARM_CP_NOP, .access = PL0_W, | |
7435 | .accessfn = aa64_cacheop_poc_access }, | |
7436 | { .name = "DC_CGDVADP", .state = ARM_CP_STATE_AA64, | |
7437 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 13, .opc2 = 5, | |
7438 | .type = ARM_CP_NOP, .access = PL0_W, | |
7439 | .accessfn = aa64_cacheop_poc_access }, | |
7440 | { .name = "DC_CIGVAC", .state = ARM_CP_STATE_AA64, | |
7441 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 3, | |
7442 | .type = ARM_CP_NOP, .access = PL0_W, | |
7443 | .accessfn = aa64_cacheop_poc_access }, | |
7444 | { .name = "DC_CIGDVAC", .state = ARM_CP_STATE_AA64, | |
7445 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 14, .opc2 = 5, | |
7446 | .type = ARM_CP_NOP, .access = PL0_W, | |
7447 | .accessfn = aa64_cacheop_poc_access }, | |
eb821168 RH |
7448 | { .name = "DC_GVA", .state = ARM_CP_STATE_AA64, |
7449 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 3, | |
7450 | .access = PL0_W, .type = ARM_CP_DC_GVA, | |
7451 | #ifndef CONFIG_USER_ONLY | |
7452 | /* Avoid overhead of an access check that always passes in user-mode */ | |
7453 | .accessfn = aa64_zva_access, | |
7454 | #endif | |
7455 | }, | |
7456 | { .name = "DC_GZVA", .state = ARM_CP_STATE_AA64, | |
7457 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 4, .opc2 = 4, | |
7458 | .access = PL0_W, .type = ARM_CP_DC_GZVA, | |
7459 | #ifndef CONFIG_USER_ONLY | |
7460 | /* Avoid overhead of an access check that always passes in user-mode */ | |
7461 | .accessfn = aa64_zva_access, | |
7462 | #endif | |
7463 | }, | |
5463df16 RH |
7464 | }; |
7465 | ||
7cb1e618 RH |
7466 | static CPAccessResult access_scxtnum(CPUARMState *env, const ARMCPRegInfo *ri, |
7467 | bool isread) | |
7468 | { | |
7469 | uint64_t hcr = arm_hcr_el2_eff(env); | |
7470 | int el = arm_current_el(env); | |
7471 | ||
7472 | if (el == 0 && !((hcr & HCR_E2H) && (hcr & HCR_TGE))) { | |
7473 | if (env->cp15.sctlr_el[1] & SCTLR_TSCXT) { | |
7474 | if (hcr & HCR_TGE) { | |
7475 | return CP_ACCESS_TRAP_EL2; | |
7476 | } | |
7477 | return CP_ACCESS_TRAP; | |
7478 | } | |
7479 | } else if (el < 2 && (env->cp15.sctlr_el[2] & SCTLR_TSCXT)) { | |
7480 | return CP_ACCESS_TRAP_EL2; | |
7481 | } | |
7482 | if (el < 2 && arm_is_el2_enabled(env) && !(hcr & HCR_ENSCXT)) { | |
7483 | return CP_ACCESS_TRAP_EL2; | |
7484 | } | |
7485 | if (el < 3 | |
7486 | && arm_feature(env, ARM_FEATURE_EL3) | |
7487 | && !(env->cp15.scr_el3 & SCR_ENSCXT)) { | |
7488 | return CP_ACCESS_TRAP_EL3; | |
7489 | } | |
7490 | return CP_ACCESS_OK; | |
7491 | } | |
7492 | ||
7493 | static const ARMCPRegInfo scxtnum_reginfo[] = { | |
7494 | { .name = "SCXTNUM_EL0", .state = ARM_CP_STATE_AA64, | |
7495 | .opc0 = 3, .opc1 = 3, .crn = 13, .crm = 0, .opc2 = 7, | |
7496 | .access = PL0_RW, .accessfn = access_scxtnum, | |
7497 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[0]) }, | |
7498 | { .name = "SCXTNUM_EL1", .state = ARM_CP_STATE_AA64, | |
7499 | .opc0 = 3, .opc1 = 0, .crn = 13, .crm = 0, .opc2 = 7, | |
7500 | .access = PL1_RW, .accessfn = access_scxtnum, | |
7501 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[1]) }, | |
7502 | { .name = "SCXTNUM_EL2", .state = ARM_CP_STATE_AA64, | |
7503 | .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 7, | |
7504 | .access = PL2_RW, .accessfn = access_scxtnum, | |
7505 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[2]) }, | |
7506 | { .name = "SCXTNUM_EL3", .state = ARM_CP_STATE_AA64, | |
7507 | .opc0 = 3, .opc1 = 6, .crn = 13, .crm = 0, .opc2 = 7, | |
7508 | .access = PL3_RW, | |
7509 | .fieldoffset = offsetof(CPUARMState, scxtnum_el[3]) }, | |
7510 | }; | |
7511 | #endif /* TARGET_AARCH64 */ | |
967aa94f | 7512 | |
cb570bd3 RH |
7513 | static CPAccessResult access_predinv(CPUARMState *env, const ARMCPRegInfo *ri, |
7514 | bool isread) | |
7515 | { | |
7516 | int el = arm_current_el(env); | |
7517 | ||
7518 | if (el == 0) { | |
7519 | uint64_t sctlr = arm_sctlr(env, el); | |
7520 | if (!(sctlr & SCTLR_EnRCTX)) { | |
7521 | return CP_ACCESS_TRAP; | |
7522 | } | |
7523 | } else if (el == 1) { | |
7524 | uint64_t hcr = arm_hcr_el2_eff(env); | |
7525 | if (hcr & HCR_NV) { | |
7526 | return CP_ACCESS_TRAP_EL2; | |
7527 | } | |
7528 | } | |
7529 | return CP_ACCESS_OK; | |
7530 | } | |
7531 | ||
7532 | static const ARMCPRegInfo predinv_reginfo[] = { | |
7533 | { .name = "CFP_RCTX", .state = ARM_CP_STATE_AA64, | |
7534 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 4, | |
7535 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7536 | { .name = "DVP_RCTX", .state = ARM_CP_STATE_AA64, | |
7537 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 5, | |
7538 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7539 | { .name = "CPP_RCTX", .state = ARM_CP_STATE_AA64, | |
7540 | .opc0 = 1, .opc1 = 3, .crn = 7, .crm = 3, .opc2 = 7, | |
7541 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7542 | /* | |
7543 | * Note the AArch32 opcodes have a different OPC1. | |
7544 | */ | |
7545 | { .name = "CFPRCTX", .state = ARM_CP_STATE_AA32, | |
7546 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 4, | |
7547 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7548 | { .name = "DVPRCTX", .state = ARM_CP_STATE_AA32, | |
7549 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 5, | |
7550 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
7551 | { .name = "CPPRCTX", .state = ARM_CP_STATE_AA32, | |
7552 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 3, .opc2 = 7, | |
7553 | .type = ARM_CP_NOP, .access = PL0_W, .accessfn = access_predinv }, | |
cb570bd3 RH |
7554 | }; |
7555 | ||
957e6155 PM |
7556 | static uint64_t ccsidr2_read(CPUARMState *env, const ARMCPRegInfo *ri) |
7557 | { | |
7558 | /* Read the high 32 bits of the current CCSIDR */ | |
7559 | return extract64(ccsidr_read(env, ri), 32, 32); | |
7560 | } | |
7561 | ||
7562 | static const ARMCPRegInfo ccsidr2_reginfo[] = { | |
7563 | { .name = "CCSIDR2", .state = ARM_CP_STATE_BOTH, | |
7564 | .opc0 = 3, .opc1 = 1, .crn = 0, .crm = 0, .opc2 = 2, | |
7565 | .access = PL1_R, | |
e2ce5fcd | 7566 | .accessfn = access_tid4, |
957e6155 | 7567 | .readfn = ccsidr2_read, .type = ARM_CP_NO_RAW }, |
957e6155 PM |
7568 | }; |
7569 | ||
6a4ef4e5 MZ |
7570 | static CPAccessResult access_aa64_tid3(CPUARMState *env, const ARMCPRegInfo *ri, |
7571 | bool isread) | |
7572 | { | |
7573 | if ((arm_current_el(env) < 2) && (arm_hcr_el2_eff(env) & HCR_TID3)) { | |
7574 | return CP_ACCESS_TRAP_EL2; | |
7575 | } | |
7576 | ||
7577 | return CP_ACCESS_OK; | |
7578 | } | |
7579 | ||
7580 | static CPAccessResult access_aa32_tid3(CPUARMState *env, const ARMCPRegInfo *ri, | |
7581 | bool isread) | |
7582 | { | |
7583 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
7584 | return access_aa64_tid3(env, ri, isread); | |
7585 | } | |
7586 | ||
7587 | return CP_ACCESS_OK; | |
7588 | } | |
7589 | ||
f96f3d5f MZ |
7590 | static CPAccessResult access_jazelle(CPUARMState *env, const ARMCPRegInfo *ri, |
7591 | bool isread) | |
7592 | { | |
7593 | if (arm_current_el(env) == 1 && (arm_hcr_el2_eff(env) & HCR_TID0)) { | |
7594 | return CP_ACCESS_TRAP_EL2; | |
7595 | } | |
7596 | ||
7597 | return CP_ACCESS_OK; | |
7598 | } | |
7599 | ||
8e228c9e PM |
7600 | static CPAccessResult access_joscr_jmcr(CPUARMState *env, |
7601 | const ARMCPRegInfo *ri, bool isread) | |
7602 | { | |
7603 | /* | |
7604 | * HSTR.TJDBX traps JOSCR and JMCR accesses, but it exists only | |
7605 | * in v7A, not in v8A. | |
7606 | */ | |
7607 | if (!arm_feature(env, ARM_FEATURE_V8) && | |
7608 | arm_current_el(env) < 2 && !arm_is_secure_below_el3(env) && | |
7609 | (env->cp15.hstr_el2 & HSTR_TJDBX)) { | |
7610 | return CP_ACCESS_TRAP_EL2; | |
7611 | } | |
7612 | return CP_ACCESS_OK; | |
7613 | } | |
7614 | ||
f96f3d5f MZ |
7615 | static const ARMCPRegInfo jazelle_regs[] = { |
7616 | { .name = "JIDR", | |
7617 | .cp = 14, .crn = 0, .crm = 0, .opc1 = 7, .opc2 = 0, | |
7618 | .access = PL1_R, .accessfn = access_jazelle, | |
7619 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7620 | { .name = "JOSCR", | |
7621 | .cp = 14, .crn = 1, .crm = 0, .opc1 = 7, .opc2 = 0, | |
8e228c9e | 7622 | .accessfn = access_joscr_jmcr, |
f96f3d5f MZ |
7623 | .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, |
7624 | { .name = "JMCR", | |
7625 | .cp = 14, .crn = 2, .crm = 0, .opc1 = 7, .opc2 = 0, | |
8e228c9e | 7626 | .accessfn = access_joscr_jmcr, |
f96f3d5f | 7627 | .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, |
f96f3d5f MZ |
7628 | }; |
7629 | ||
52d18727 RH |
7630 | static const ARMCPRegInfo contextidr_el2 = { |
7631 | .name = "CONTEXTIDR_EL2", .state = ARM_CP_STATE_AA64, | |
7632 | .opc0 = 3, .opc1 = 4, .crn = 13, .crm = 0, .opc2 = 1, | |
7633 | .access = PL2_RW, | |
7634 | .fieldoffset = offsetof(CPUARMState, cp15.contextidr_el[2]) | |
7635 | }; | |
7636 | ||
e2a1a461 | 7637 | static const ARMCPRegInfo vhe_reginfo[] = { |
ed30da8e RH |
7638 | { .name = "TTBR1_EL2", .state = ARM_CP_STATE_AA64, |
7639 | .opc0 = 3, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 1, | |
7640 | .access = PL2_RW, .writefn = vmsa_tcr_ttbr_el2_write, | |
7641 | .fieldoffset = offsetof(CPUARMState, cp15.ttbr1_el[2]) }, | |
8c94b071 RH |
7642 | #ifndef CONFIG_USER_ONLY |
7643 | { .name = "CNTHV_CVAL_EL2", .state = ARM_CP_STATE_AA64, | |
7644 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 3, .opc2 = 2, | |
7645 | .fieldoffset = | |
7646 | offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYPVIRT].cval), | |
7647 | .type = ARM_CP_IO, .access = PL2_RW, | |
7648 | .writefn = gt_hv_cval_write, .raw_writefn = raw_write }, | |
7649 | { .name = "CNTHV_TVAL_EL2", .state = ARM_CP_STATE_BOTH, | |
7650 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 3, .opc2 = 0, | |
7651 | .type = ARM_CP_NO_RAW | ARM_CP_IO, .access = PL2_RW, | |
7652 | .resetfn = gt_hv_timer_reset, | |
7653 | .readfn = gt_hv_tval_read, .writefn = gt_hv_tval_write }, | |
7654 | { .name = "CNTHV_CTL_EL2", .state = ARM_CP_STATE_BOTH, | |
7655 | .type = ARM_CP_IO, | |
7656 | .opc0 = 3, .opc1 = 4, .crn = 14, .crm = 3, .opc2 = 1, | |
7657 | .access = PL2_RW, | |
7658 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_HYPVIRT].ctl), | |
7659 | .writefn = gt_hv_ctl_write, .raw_writefn = raw_write }, | |
bb5972e4 RH |
7660 | { .name = "CNTP_CTL_EL02", .state = ARM_CP_STATE_AA64, |
7661 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 2, .opc2 = 1, | |
7662 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7663 | .access = PL2_RW, .accessfn = e2h_access, | |
7664 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].ctl), | |
7665 | .writefn = gt_phys_ctl_write, .raw_writefn = raw_write }, | |
7666 | { .name = "CNTV_CTL_EL02", .state = ARM_CP_STATE_AA64, | |
7667 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 3, .opc2 = 1, | |
7668 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7669 | .access = PL2_RW, .accessfn = e2h_access, | |
7670 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].ctl), | |
7671 | .writefn = gt_virt_ctl_write, .raw_writefn = raw_write }, | |
7672 | { .name = "CNTP_TVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7673 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 2, .opc2 = 0, | |
7674 | .type = ARM_CP_NO_RAW | ARM_CP_IO | ARM_CP_ALIAS, | |
7675 | .access = PL2_RW, .accessfn = e2h_access, | |
7676 | .readfn = gt_phys_tval_read, .writefn = gt_phys_tval_write }, | |
7677 | { .name = "CNTV_TVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7678 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 3, .opc2 = 0, | |
7679 | .type = ARM_CP_NO_RAW | ARM_CP_IO | ARM_CP_ALIAS, | |
7680 | .access = PL2_RW, .accessfn = e2h_access, | |
7681 | .readfn = gt_virt_tval_read, .writefn = gt_virt_tval_write }, | |
7682 | { .name = "CNTP_CVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7683 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 2, .opc2 = 2, | |
7684 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7685 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_PHYS].cval), | |
7686 | .access = PL2_RW, .accessfn = e2h_access, | |
7687 | .writefn = gt_phys_cval_write, .raw_writefn = raw_write }, | |
7688 | { .name = "CNTV_CVAL_EL02", .state = ARM_CP_STATE_AA64, | |
7689 | .opc0 = 3, .opc1 = 5, .crn = 14, .crm = 3, .opc2 = 2, | |
7690 | .type = ARM_CP_IO | ARM_CP_ALIAS, | |
7691 | .fieldoffset = offsetof(CPUARMState, cp15.c14_timer[GTIMER_VIRT].cval), | |
7692 | .access = PL2_RW, .accessfn = e2h_access, | |
7693 | .writefn = gt_virt_cval_write, .raw_writefn = raw_write }, | |
8c94b071 | 7694 | #endif |
e2a1a461 RH |
7695 | }; |
7696 | ||
04b07d29 RH |
7697 | #ifndef CONFIG_USER_ONLY |
7698 | static const ARMCPRegInfo ats1e1_reginfo[] = { | |
7699 | { .name = "AT_S1E1R", .state = ARM_CP_STATE_AA64, | |
7700 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, | |
7701 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7702 | .writefn = ats_write64 }, | |
7703 | { .name = "AT_S1E1W", .state = ARM_CP_STATE_AA64, | |
7704 | .opc0 = 1, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, | |
7705 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7706 | .writefn = ats_write64 }, | |
04b07d29 RH |
7707 | }; |
7708 | ||
7709 | static const ARMCPRegInfo ats1cp_reginfo[] = { | |
7710 | { .name = "ATS1CPRP", | |
7711 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 0, | |
7712 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7713 | .writefn = ats_write }, | |
7714 | { .name = "ATS1CPWP", | |
7715 | .cp = 15, .opc1 = 0, .crn = 7, .crm = 9, .opc2 = 1, | |
7716 | .access = PL1_W, .type = ARM_CP_NO_RAW | ARM_CP_RAISES_EXC, | |
7717 | .writefn = ats_write }, | |
04b07d29 RH |
7718 | }; |
7719 | #endif | |
7720 | ||
f6287c24 PM |
7721 | /* |
7722 | * ACTLR2 and HACTLR2 map to ACTLR_EL1[63:32] and | |
7723 | * ACTLR_EL2[63:32]. They exist only if the ID_MMFR4.AC2 field | |
7724 | * is non-zero, which is never for ARMv7, optionally in ARMv8 | |
7725 | * and mandatorily for ARMv8.2 and up. | |
7726 | * ACTLR2 is banked for S and NS if EL3 is AArch32. Since QEMU's | |
7727 | * implementation is RAZ/WI we can ignore this detail, as we | |
7728 | * do for ACTLR. | |
7729 | */ | |
7730 | static const ARMCPRegInfo actlr2_hactlr2_reginfo[] = { | |
7731 | { .name = "ACTLR2", .state = ARM_CP_STATE_AA32, | |
7732 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 3, | |
99602377 RH |
7733 | .access = PL1_RW, .accessfn = access_tacr, |
7734 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
f6287c24 PM |
7735 | { .name = "HACTLR2", .state = ARM_CP_STATE_AA32, |
7736 | .cp = 15, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 3, | |
7737 | .access = PL2_RW, .type = ARM_CP_CONST, | |
7738 | .resetvalue = 0 }, | |
f6287c24 PM |
7739 | }; |
7740 | ||
2ceb98c0 PM |
7741 | void register_cp_regs_for_features(ARMCPU *cpu) |
7742 | { | |
7743 | /* Register all the coprocessor registers based on feature bits */ | |
7744 | CPUARMState *env = &cpu->env; | |
7745 | if (arm_feature(env, ARM_FEATURE_M)) { | |
7746 | /* M profile has no coprocessor registers */ | |
7747 | return; | |
7748 | } | |
7749 | ||
e9aa6c21 | 7750 | define_arm_cp_regs(cpu, cp_reginfo); |
9449fdf6 | 7751 | if (!arm_feature(env, ARM_FEATURE_V8)) { |
9b37a28c FR |
7752 | /* |
7753 | * Must go early as it is full of wildcards that may be | |
9449fdf6 PM |
7754 | * overridden by later definitions. |
7755 | */ | |
7756 | define_arm_cp_regs(cpu, not_v8_cp_reginfo); | |
7757 | } | |
7758 | ||
7d57f408 | 7759 | if (arm_feature(env, ARM_FEATURE_V6)) { |
8515a092 PM |
7760 | /* The ID registers all have impdef reset values */ |
7761 | ARMCPRegInfo v6_idregs[] = { | |
0ff644a7 PM |
7762 | { .name = "ID_PFR0", .state = ARM_CP_STATE_BOTH, |
7763 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 0, | |
7764 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7765 | .accessfn = access_aa32_tid3, |
8a130a7b | 7766 | .resetvalue = cpu->isar.id_pfr0 }, |
9b37a28c FR |
7767 | /* |
7768 | * ID_PFR1 is not a plain ARM_CP_CONST because we don't know | |
96a8b92e PM |
7769 | * the value of the GIC field until after we define these regs. |
7770 | */ | |
0ff644a7 PM |
7771 | { .name = "ID_PFR1", .state = ARM_CP_STATE_BOTH, |
7772 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 1, | |
96a8b92e | 7773 | .access = PL1_R, .type = ARM_CP_NO_RAW, |
6a4ef4e5 | 7774 | .accessfn = access_aa32_tid3, |
96a8b92e PM |
7775 | .readfn = id_pfr1_read, |
7776 | .writefn = arm_cp_write_ignore }, | |
0ff644a7 PM |
7777 | { .name = "ID_DFR0", .state = ARM_CP_STATE_BOTH, |
7778 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 2, | |
7779 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7780 | .accessfn = access_aa32_tid3, |
a6179538 | 7781 | .resetvalue = cpu->isar.id_dfr0 }, |
0ff644a7 PM |
7782 | { .name = "ID_AFR0", .state = ARM_CP_STATE_BOTH, |
7783 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 3, | |
7784 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7785 | .accessfn = access_aa32_tid3, |
8515a092 | 7786 | .resetvalue = cpu->id_afr0 }, |
0ff644a7 PM |
7787 | { .name = "ID_MMFR0", .state = ARM_CP_STATE_BOTH, |
7788 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 4, | |
7789 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7790 | .accessfn = access_aa32_tid3, |
10054016 | 7791 | .resetvalue = cpu->isar.id_mmfr0 }, |
0ff644a7 PM |
7792 | { .name = "ID_MMFR1", .state = ARM_CP_STATE_BOTH, |
7793 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 5, | |
7794 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7795 | .accessfn = access_aa32_tid3, |
10054016 | 7796 | .resetvalue = cpu->isar.id_mmfr1 }, |
0ff644a7 PM |
7797 | { .name = "ID_MMFR2", .state = ARM_CP_STATE_BOTH, |
7798 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 6, | |
7799 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7800 | .accessfn = access_aa32_tid3, |
10054016 | 7801 | .resetvalue = cpu->isar.id_mmfr2 }, |
0ff644a7 PM |
7802 | { .name = "ID_MMFR3", .state = ARM_CP_STATE_BOTH, |
7803 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 1, .opc2 = 7, | |
7804 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7805 | .accessfn = access_aa32_tid3, |
10054016 | 7806 | .resetvalue = cpu->isar.id_mmfr3 }, |
0ff644a7 PM |
7807 | { .name = "ID_ISAR0", .state = ARM_CP_STATE_BOTH, |
7808 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 0, | |
7809 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7810 | .accessfn = access_aa32_tid3, |
47576b94 | 7811 | .resetvalue = cpu->isar.id_isar0 }, |
0ff644a7 PM |
7812 | { .name = "ID_ISAR1", .state = ARM_CP_STATE_BOTH, |
7813 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 1, | |
7814 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7815 | .accessfn = access_aa32_tid3, |
47576b94 | 7816 | .resetvalue = cpu->isar.id_isar1 }, |
0ff644a7 PM |
7817 | { .name = "ID_ISAR2", .state = ARM_CP_STATE_BOTH, |
7818 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 2, | |
7819 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7820 | .accessfn = access_aa32_tid3, |
47576b94 | 7821 | .resetvalue = cpu->isar.id_isar2 }, |
0ff644a7 PM |
7822 | { .name = "ID_ISAR3", .state = ARM_CP_STATE_BOTH, |
7823 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 3, | |
7824 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7825 | .accessfn = access_aa32_tid3, |
47576b94 | 7826 | .resetvalue = cpu->isar.id_isar3 }, |
0ff644a7 PM |
7827 | { .name = "ID_ISAR4", .state = ARM_CP_STATE_BOTH, |
7828 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 4, | |
7829 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7830 | .accessfn = access_aa32_tid3, |
47576b94 | 7831 | .resetvalue = cpu->isar.id_isar4 }, |
0ff644a7 PM |
7832 | { .name = "ID_ISAR5", .state = ARM_CP_STATE_BOTH, |
7833 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 5, | |
7834 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7835 | .accessfn = access_aa32_tid3, |
47576b94 | 7836 | .resetvalue = cpu->isar.id_isar5 }, |
e20d84c1 PM |
7837 | { .name = "ID_MMFR4", .state = ARM_CP_STATE_BOTH, |
7838 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 6, | |
7839 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7840 | .accessfn = access_aa32_tid3, |
10054016 | 7841 | .resetvalue = cpu->isar.id_mmfr4 }, |
802abf40 | 7842 | { .name = "ID_ISAR6", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
7843 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 2, .opc2 = 7, |
7844 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7845 | .accessfn = access_aa32_tid3, |
47576b94 | 7846 | .resetvalue = cpu->isar.id_isar6 }, |
8515a092 PM |
7847 | }; |
7848 | define_arm_cp_regs(cpu, v6_idregs); | |
7d57f408 PM |
7849 | define_arm_cp_regs(cpu, v6_cp_reginfo); |
7850 | } else { | |
7851 | define_arm_cp_regs(cpu, not_v6_cp_reginfo); | |
7852 | } | |
4d31c596 PM |
7853 | if (arm_feature(env, ARM_FEATURE_V6K)) { |
7854 | define_arm_cp_regs(cpu, v6k_cp_reginfo); | |
7855 | } | |
5e5cf9e3 | 7856 | if (arm_feature(env, ARM_FEATURE_V7MP) && |
452a0955 | 7857 | !arm_feature(env, ARM_FEATURE_PMSA)) { |
995939a6 PM |
7858 | define_arm_cp_regs(cpu, v7mp_cp_reginfo); |
7859 | } | |
327dd510 AL |
7860 | if (arm_feature(env, ARM_FEATURE_V7VE)) { |
7861 | define_arm_cp_regs(cpu, pmovsset_cp_reginfo); | |
7862 | } | |
e9aa6c21 | 7863 | if (arm_feature(env, ARM_FEATURE_V7)) { |
776d4e5c | 7864 | ARMCPRegInfo clidr = { |
7da845b0 PM |
7865 | .name = "CLIDR", .state = ARM_CP_STATE_BOTH, |
7866 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 1, .opc2 = 1, | |
630fcd4d | 7867 | .access = PL1_R, .type = ARM_CP_CONST, |
e2ce5fcd | 7868 | .accessfn = access_tid4, |
630fcd4d | 7869 | .resetvalue = cpu->clidr |
776d4e5c | 7870 | }; |
776d4e5c | 7871 | define_one_arm_cp_reg(cpu, &clidr); |
e9aa6c21 | 7872 | define_arm_cp_regs(cpu, v7_cp_reginfo); |
50300698 | 7873 | define_debug_regs(cpu); |
24183fb6 | 7874 | define_pmu_regs(cpu); |
7d57f408 PM |
7875 | } else { |
7876 | define_arm_cp_regs(cpu, not_v7_cp_reginfo); | |
e9aa6c21 | 7877 | } |
b0d2b7d0 | 7878 | if (arm_feature(env, ARM_FEATURE_V8)) { |
dde4d028 PM |
7879 | /* |
7880 | * v8 ID registers, which all have impdef reset values. | |
e20d84c1 PM |
7881 | * Note that within the ID register ranges the unused slots |
7882 | * must all RAZ, not UNDEF; future architecture versions may | |
7883 | * define new registers here. | |
dde4d028 PM |
7884 | * ID registers which are AArch64 views of the AArch32 ID registers |
7885 | * which already existed in v6 and v7 are handled elsewhere, | |
7886 | * in v6_idregs[]. | |
e20d84c1 | 7887 | */ |
dde4d028 | 7888 | int i; |
e60cef86 | 7889 | ARMCPRegInfo v8_idregs[] = { |
976b99b6 AB |
7890 | /* |
7891 | * ID_AA64PFR0_EL1 is not a plain ARM_CP_CONST in system | |
7892 | * emulation because we don't know the right value for the | |
7893 | * GIC field until after we define these regs. | |
96a8b92e | 7894 | */ |
e60cef86 PM |
7895 | { .name = "ID_AA64PFR0_EL1", .state = ARM_CP_STATE_AA64, |
7896 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 0, | |
976b99b6 AB |
7897 | .access = PL1_R, |
7898 | #ifdef CONFIG_USER_ONLY | |
7899 | .type = ARM_CP_CONST, | |
7900 | .resetvalue = cpu->isar.id_aa64pfr0 | |
7901 | #else | |
7902 | .type = ARM_CP_NO_RAW, | |
6a4ef4e5 | 7903 | .accessfn = access_aa64_tid3, |
96a8b92e | 7904 | .readfn = id_aa64pfr0_read, |
976b99b6 AB |
7905 | .writefn = arm_cp_write_ignore |
7906 | #endif | |
7907 | }, | |
e60cef86 PM |
7908 | { .name = "ID_AA64PFR1_EL1", .state = ARM_CP_STATE_AA64, |
7909 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 1, | |
7910 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7911 | .accessfn = access_aa64_tid3, |
47576b94 | 7912 | .resetvalue = cpu->isar.id_aa64pfr1}, |
e20d84c1 PM |
7913 | { .name = "ID_AA64PFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7914 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 2, | |
7915 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7916 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7917 | .resetvalue = 0 }, |
7918 | { .name = "ID_AA64PFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7919 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 3, | |
7920 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7921 | .accessfn = access_aa64_tid3, |
e20d84c1 | 7922 | .resetvalue = 0 }, |
9516d772 | 7923 | { .name = "ID_AA64ZFR0_EL1", .state = ARM_CP_STATE_AA64, |
e20d84c1 PM |
7924 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 4, |
7925 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7926 | .accessfn = access_aa64_tid3, |
2dc10fa2 | 7927 | .resetvalue = cpu->isar.id_aa64zfr0 }, |
414c54d5 | 7928 | { .name = "ID_AA64SMFR0_EL1", .state = ARM_CP_STATE_AA64, |
e20d84c1 PM |
7929 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 5, |
7930 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7931 | .accessfn = access_aa64_tid3, |
414c54d5 | 7932 | .resetvalue = cpu->isar.id_aa64smfr0 }, |
e20d84c1 PM |
7933 | { .name = "ID_AA64PFR6_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7934 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 6, | |
7935 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7936 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7937 | .resetvalue = 0 }, |
7938 | { .name = "ID_AA64PFR7_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7939 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 4, .opc2 = 7, | |
7940 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7941 | .accessfn = access_aa64_tid3, |
e20d84c1 | 7942 | .resetvalue = 0 }, |
e60cef86 PM |
7943 | { .name = "ID_AA64DFR0_EL1", .state = ARM_CP_STATE_AA64, |
7944 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 0, | |
7945 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7946 | .accessfn = access_aa64_tid3, |
2a609df8 | 7947 | .resetvalue = cpu->isar.id_aa64dfr0 }, |
e60cef86 PM |
7948 | { .name = "ID_AA64DFR1_EL1", .state = ARM_CP_STATE_AA64, |
7949 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 1, | |
7950 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7951 | .accessfn = access_aa64_tid3, |
2a609df8 | 7952 | .resetvalue = cpu->isar.id_aa64dfr1 }, |
e20d84c1 PM |
7953 | { .name = "ID_AA64DFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7954 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 2, | |
7955 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7956 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7957 | .resetvalue = 0 }, |
7958 | { .name = "ID_AA64DFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7959 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 3, | |
7960 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7961 | .accessfn = access_aa64_tid3, |
e20d84c1 | 7962 | .resetvalue = 0 }, |
e60cef86 PM |
7963 | { .name = "ID_AA64AFR0_EL1", .state = ARM_CP_STATE_AA64, |
7964 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 4, | |
7965 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7966 | .accessfn = access_aa64_tid3, |
e60cef86 PM |
7967 | .resetvalue = cpu->id_aa64afr0 }, |
7968 | { .name = "ID_AA64AFR1_EL1", .state = ARM_CP_STATE_AA64, | |
7969 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 5, | |
7970 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7971 | .accessfn = access_aa64_tid3, |
e60cef86 | 7972 | .resetvalue = cpu->id_aa64afr1 }, |
e20d84c1 PM |
7973 | { .name = "ID_AA64AFR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7974 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 6, | |
7975 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7976 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7977 | .resetvalue = 0 }, |
7978 | { .name = "ID_AA64AFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7979 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 5, .opc2 = 7, | |
7980 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7981 | .accessfn = access_aa64_tid3, |
e20d84c1 | 7982 | .resetvalue = 0 }, |
e60cef86 PM |
7983 | { .name = "ID_AA64ISAR0_EL1", .state = ARM_CP_STATE_AA64, |
7984 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 0, | |
7985 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7986 | .accessfn = access_aa64_tid3, |
47576b94 | 7987 | .resetvalue = cpu->isar.id_aa64isar0 }, |
e60cef86 PM |
7988 | { .name = "ID_AA64ISAR1_EL1", .state = ARM_CP_STATE_AA64, |
7989 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 1, | |
7990 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7991 | .accessfn = access_aa64_tid3, |
47576b94 | 7992 | .resetvalue = cpu->isar.id_aa64isar1 }, |
e20d84c1 PM |
7993 | { .name = "ID_AA64ISAR2_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
7994 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 2, | |
7995 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 7996 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
7997 | .resetvalue = 0 }, |
7998 | { .name = "ID_AA64ISAR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
7999 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 3, | |
8000 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8001 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8002 | .resetvalue = 0 }, |
8003 | { .name = "ID_AA64ISAR4_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8004 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 4, | |
8005 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8006 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8007 | .resetvalue = 0 }, |
8008 | { .name = "ID_AA64ISAR5_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8009 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 5, | |
8010 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8011 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8012 | .resetvalue = 0 }, |
8013 | { .name = "ID_AA64ISAR6_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8014 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 6, | |
8015 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8016 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8017 | .resetvalue = 0 }, |
8018 | { .name = "ID_AA64ISAR7_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8019 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 6, .opc2 = 7, | |
8020 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8021 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8022 | .resetvalue = 0 }, |
e60cef86 PM |
8023 | { .name = "ID_AA64MMFR0_EL1", .state = ARM_CP_STATE_AA64, |
8024 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 0, | |
8025 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8026 | .accessfn = access_aa64_tid3, |
3dc91ddb | 8027 | .resetvalue = cpu->isar.id_aa64mmfr0 }, |
e60cef86 PM |
8028 | { .name = "ID_AA64MMFR1_EL1", .state = ARM_CP_STATE_AA64, |
8029 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 1, | |
8030 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8031 | .accessfn = access_aa64_tid3, |
3dc91ddb | 8032 | .resetvalue = cpu->isar.id_aa64mmfr1 }, |
64761e10 | 8033 | { .name = "ID_AA64MMFR2_EL1", .state = ARM_CP_STATE_AA64, |
e20d84c1 PM |
8034 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 2, |
8035 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8036 | .accessfn = access_aa64_tid3, |
64761e10 | 8037 | .resetvalue = cpu->isar.id_aa64mmfr2 }, |
e20d84c1 PM |
8038 | { .name = "ID_AA64MMFR3_EL1_RESERVED", .state = ARM_CP_STATE_AA64, |
8039 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 3, | |
8040 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8041 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8042 | .resetvalue = 0 }, |
8043 | { .name = "ID_AA64MMFR4_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8044 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 4, | |
8045 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8046 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8047 | .resetvalue = 0 }, |
8048 | { .name = "ID_AA64MMFR5_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8049 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 5, | |
8050 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8051 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8052 | .resetvalue = 0 }, |
8053 | { .name = "ID_AA64MMFR6_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8054 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 6, | |
8055 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8056 | .accessfn = access_aa64_tid3, |
e20d84c1 PM |
8057 | .resetvalue = 0 }, |
8058 | { .name = "ID_AA64MMFR7_EL1_RESERVED", .state = ARM_CP_STATE_AA64, | |
8059 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 7, .opc2 = 7, | |
8060 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8061 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8062 | .resetvalue = 0 }, |
a50c0f51 PM |
8063 | { .name = "MVFR0_EL1", .state = ARM_CP_STATE_AA64, |
8064 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 0, | |
8065 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8066 | .accessfn = access_aa64_tid3, |
47576b94 | 8067 | .resetvalue = cpu->isar.mvfr0 }, |
a50c0f51 PM |
8068 | { .name = "MVFR1_EL1", .state = ARM_CP_STATE_AA64, |
8069 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 1, | |
8070 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8071 | .accessfn = access_aa64_tid3, |
47576b94 | 8072 | .resetvalue = cpu->isar.mvfr1 }, |
a50c0f51 PM |
8073 | { .name = "MVFR2_EL1", .state = ARM_CP_STATE_AA64, |
8074 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 2, | |
8075 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8076 | .accessfn = access_aa64_tid3, |
47576b94 | 8077 | .resetvalue = cpu->isar.mvfr2 }, |
dde4d028 PM |
8078 | /* |
8079 | * "0, c0, c3, {0,1,2}" are the encodings corresponding to | |
8080 | * AArch64 MVFR[012]_EL1. Define the STATE_AA32 encoding | |
8081 | * as RAZ, since it is in the "reserved for future ID | |
8082 | * registers, RAZ" part of the AArch32 encoding space. | |
8083 | */ | |
8084 | { .name = "RES_0_C0_C3_0", .state = ARM_CP_STATE_AA32, | |
8085 | .cp = 15, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 0, | |
8086 | .access = PL1_R, .type = ARM_CP_CONST, | |
8087 | .accessfn = access_aa64_tid3, | |
8088 | .resetvalue = 0 }, | |
8089 | { .name = "RES_0_C0_C3_1", .state = ARM_CP_STATE_AA32, | |
8090 | .cp = 15, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 1, | |
8091 | .access = PL1_R, .type = ARM_CP_CONST, | |
8092 | .accessfn = access_aa64_tid3, | |
8093 | .resetvalue = 0 }, | |
8094 | { .name = "RES_0_C0_C3_2", .state = ARM_CP_STATE_AA32, | |
8095 | .cp = 15, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 2, | |
8096 | .access = PL1_R, .type = ARM_CP_CONST, | |
8097 | .accessfn = access_aa64_tid3, | |
8098 | .resetvalue = 0 }, | |
8099 | /* | |
8100 | * Other encodings in "0, c0, c3, ..." are STATE_BOTH because | |
8101 | * they're also RAZ for AArch64, and in v8 are gradually | |
8102 | * being filled with AArch64-view-of-AArch32-ID-register | |
8103 | * for new ID registers. | |
8104 | */ | |
8105 | { .name = "RES_0_C0_C3_3", .state = ARM_CP_STATE_BOTH, | |
e20d84c1 PM |
8106 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 3, |
8107 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8108 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8109 | .resetvalue = 0 }, |
1d51bc96 | 8110 | { .name = "ID_PFR2", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8111 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 4, |
8112 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8113 | .accessfn = access_aa64_tid3, |
1d51bc96 | 8114 | .resetvalue = cpu->isar.id_pfr2 }, |
d22c5649 | 8115 | { .name = "ID_DFR1", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8116 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 5, |
8117 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8118 | .accessfn = access_aa64_tid3, |
d22c5649 | 8119 | .resetvalue = cpu->isar.id_dfr1 }, |
32957aad | 8120 | { .name = "ID_MMFR5", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8121 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 6, |
8122 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8123 | .accessfn = access_aa64_tid3, |
32957aad | 8124 | .resetvalue = cpu->isar.id_mmfr5 }, |
dde4d028 | 8125 | { .name = "RES_0_C0_C3_7", .state = ARM_CP_STATE_BOTH, |
e20d84c1 PM |
8126 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 3, .opc2 = 7, |
8127 | .access = PL1_R, .type = ARM_CP_CONST, | |
6a4ef4e5 | 8128 | .accessfn = access_aa64_tid3, |
e20d84c1 | 8129 | .resetvalue = 0 }, |
4054bfa9 AF |
8130 | { .name = "PMCEID0", .state = ARM_CP_STATE_AA32, |
8131 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 6, | |
8132 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
cad86737 | 8133 | .resetvalue = extract64(cpu->pmceid0, 0, 32) }, |
4054bfa9 AF |
8134 | { .name = "PMCEID0_EL0", .state = ARM_CP_STATE_AA64, |
8135 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 6, | |
8136 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
8137 | .resetvalue = cpu->pmceid0 }, | |
8138 | { .name = "PMCEID1", .state = ARM_CP_STATE_AA32, | |
8139 | .cp = 15, .opc1 = 0, .crn = 9, .crm = 12, .opc2 = 7, | |
8140 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
cad86737 | 8141 | .resetvalue = extract64(cpu->pmceid1, 0, 32) }, |
4054bfa9 AF |
8142 | { .name = "PMCEID1_EL0", .state = ARM_CP_STATE_AA64, |
8143 | .opc0 = 3, .opc1 = 3, .crn = 9, .crm = 12, .opc2 = 7, | |
8144 | .access = PL0_R, .accessfn = pmreg_access, .type = ARM_CP_CONST, | |
8145 | .resetvalue = cpu->pmceid1 }, | |
e60cef86 | 8146 | }; |
6c5c0fec | 8147 | #ifdef CONFIG_USER_ONLY |
10b0220e | 8148 | static const ARMCPRegUserSpaceInfo v8_user_idregs[] = { |
6c5c0fec | 8149 | { .name = "ID_AA64PFR0_EL1", |
bc6bd20e ZS |
8150 | .exported_bits = R_ID_AA64PFR0_FP_MASK | |
8151 | R_ID_AA64PFR0_ADVSIMD_MASK | | |
8152 | R_ID_AA64PFR0_SVE_MASK | | |
8153 | R_ID_AA64PFR0_DIT_MASK, | |
8154 | .fixed_bits = (0x1u << R_ID_AA64PFR0_EL0_SHIFT) | | |
8155 | (0x1u << R_ID_AA64PFR0_EL1_SHIFT) }, | |
6c5c0fec | 8156 | { .name = "ID_AA64PFR1_EL1", |
bc6bd20e ZS |
8157 | .exported_bits = R_ID_AA64PFR1_BT_MASK | |
8158 | R_ID_AA64PFR1_SSBS_MASK | | |
8159 | R_ID_AA64PFR1_MTE_MASK | | |
8160 | R_ID_AA64PFR1_SME_MASK }, | |
d040242e | 8161 | { .name = "ID_AA64PFR*_EL1_RESERVED", |
bc6bd20e ZS |
8162 | .is_glob = true }, |
8163 | { .name = "ID_AA64ZFR0_EL1", | |
8164 | .exported_bits = R_ID_AA64ZFR0_SVEVER_MASK | | |
8165 | R_ID_AA64ZFR0_AES_MASK | | |
8166 | R_ID_AA64ZFR0_BITPERM_MASK | | |
8167 | R_ID_AA64ZFR0_BFLOAT16_MASK | | |
8168 | R_ID_AA64ZFR0_SHA3_MASK | | |
8169 | R_ID_AA64ZFR0_SM4_MASK | | |
8170 | R_ID_AA64ZFR0_I8MM_MASK | | |
8171 | R_ID_AA64ZFR0_F32MM_MASK | | |
8172 | R_ID_AA64ZFR0_F64MM_MASK }, | |
8173 | { .name = "ID_AA64SMFR0_EL1", | |
8174 | .exported_bits = R_ID_AA64SMFR0_F32F32_MASK | | |
8175 | R_ID_AA64SMFR0_B16F32_MASK | | |
8176 | R_ID_AA64SMFR0_F16F32_MASK | | |
8177 | R_ID_AA64SMFR0_I8I32_MASK | | |
8178 | R_ID_AA64SMFR0_F64F64_MASK | | |
8179 | R_ID_AA64SMFR0_I16I64_MASK | | |
8180 | R_ID_AA64SMFR0_FA64_MASK }, | |
6c5c0fec | 8181 | { .name = "ID_AA64MMFR0_EL1", |
bc6bd20e ZS |
8182 | .exported_bits = R_ID_AA64MMFR0_ECV_MASK, |
8183 | .fixed_bits = (0xfu << R_ID_AA64MMFR0_TGRAN64_SHIFT) | | |
8184 | (0xfu << R_ID_AA64MMFR0_TGRAN4_SHIFT) }, | |
8185 | { .name = "ID_AA64MMFR1_EL1", | |
8186 | .exported_bits = R_ID_AA64MMFR1_AFP_MASK }, | |
8187 | { .name = "ID_AA64MMFR2_EL1", | |
8188 | .exported_bits = R_ID_AA64MMFR2_AT_MASK }, | |
d040242e | 8189 | { .name = "ID_AA64MMFR*_EL1_RESERVED", |
bc6bd20e | 8190 | .is_glob = true }, |
6c5c0fec | 8191 | { .name = "ID_AA64DFR0_EL1", |
bc6bd20e ZS |
8192 | .fixed_bits = (0x6u << R_ID_AA64DFR0_DEBUGVER_SHIFT) }, |
8193 | { .name = "ID_AA64DFR1_EL1" }, | |
d040242e | 8194 | { .name = "ID_AA64DFR*_EL1_RESERVED", |
bc6bd20e | 8195 | .is_glob = true }, |
d040242e | 8196 | { .name = "ID_AA64AFR*", |
bc6bd20e | 8197 | .is_glob = true }, |
6c5c0fec | 8198 | { .name = "ID_AA64ISAR0_EL1", |
bc6bd20e ZS |
8199 | .exported_bits = R_ID_AA64ISAR0_AES_MASK | |
8200 | R_ID_AA64ISAR0_SHA1_MASK | | |
8201 | R_ID_AA64ISAR0_SHA2_MASK | | |
8202 | R_ID_AA64ISAR0_CRC32_MASK | | |
8203 | R_ID_AA64ISAR0_ATOMIC_MASK | | |
8204 | R_ID_AA64ISAR0_RDM_MASK | | |
8205 | R_ID_AA64ISAR0_SHA3_MASK | | |
8206 | R_ID_AA64ISAR0_SM3_MASK | | |
8207 | R_ID_AA64ISAR0_SM4_MASK | | |
8208 | R_ID_AA64ISAR0_DP_MASK | | |
8209 | R_ID_AA64ISAR0_FHM_MASK | | |
8210 | R_ID_AA64ISAR0_TS_MASK | | |
8211 | R_ID_AA64ISAR0_RNDR_MASK }, | |
6c5c0fec | 8212 | { .name = "ID_AA64ISAR1_EL1", |
bc6bd20e ZS |
8213 | .exported_bits = R_ID_AA64ISAR1_DPB_MASK | |
8214 | R_ID_AA64ISAR1_APA_MASK | | |
8215 | R_ID_AA64ISAR1_API_MASK | | |
8216 | R_ID_AA64ISAR1_JSCVT_MASK | | |
8217 | R_ID_AA64ISAR1_FCMA_MASK | | |
8218 | R_ID_AA64ISAR1_LRCPC_MASK | | |
8219 | R_ID_AA64ISAR1_GPA_MASK | | |
8220 | R_ID_AA64ISAR1_GPI_MASK | | |
8221 | R_ID_AA64ISAR1_FRINTTS_MASK | | |
8222 | R_ID_AA64ISAR1_SB_MASK | | |
8223 | R_ID_AA64ISAR1_BF16_MASK | | |
8224 | R_ID_AA64ISAR1_DGH_MASK | | |
8225 | R_ID_AA64ISAR1_I8MM_MASK }, | |
8226 | { .name = "ID_AA64ISAR2_EL1", | |
8227 | .exported_bits = R_ID_AA64ISAR2_WFXT_MASK | | |
8228 | R_ID_AA64ISAR2_RPRES_MASK | | |
8229 | R_ID_AA64ISAR2_GPA3_MASK | | |
8230 | R_ID_AA64ISAR2_APA3_MASK }, | |
d040242e | 8231 | { .name = "ID_AA64ISAR*_EL1_RESERVED", |
bc6bd20e | 8232 | .is_glob = true }, |
6c5c0fec AB |
8233 | }; |
8234 | modify_arm_cp_regs(v8_idregs, v8_user_idregs); | |
8235 | #endif | |
be8e8128 GB |
8236 | /* RVBAR_EL1 is only implemented if EL1 is the highest EL */ |
8237 | if (!arm_feature(env, ARM_FEATURE_EL3) && | |
8238 | !arm_feature(env, ARM_FEATURE_EL2)) { | |
8239 | ARMCPRegInfo rvbar = { | |
910e4f24 | 8240 | .name = "RVBAR_EL1", .state = ARM_CP_STATE_BOTH, |
be8e8128 | 8241 | .opc0 = 3, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, |
4a7319b7 EI |
8242 | .access = PL1_R, |
8243 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
be8e8128 GB |
8244 | }; |
8245 | define_one_arm_cp_reg(cpu, &rvbar); | |
8246 | } | |
e60cef86 | 8247 | define_arm_cp_regs(cpu, v8_idregs); |
b0d2b7d0 | 8248 | define_arm_cp_regs(cpu, v8_cp_reginfo); |
dde4d028 PM |
8249 | |
8250 | for (i = 4; i < 16; i++) { | |
8251 | /* | |
8252 | * Encodings in "0, c0, {c4-c7}, {0-7}" are RAZ for AArch32. | |
8253 | * For pre-v8 cores there are RAZ patterns for these in | |
8254 | * id_pre_v8_midr_cp_reginfo[]; for v8 we do that here. | |
8255 | * v8 extends the "must RAZ" part of the ID register space | |
8256 | * to also cover c0, 0, c{8-15}, {0-7}. | |
8257 | * These are STATE_AA32 because in the AArch64 sysreg space | |
8258 | * c4-c7 is where the AArch64 ID registers live (and we've | |
8259 | * already defined those in v8_idregs[]), and c8-c15 are not | |
8260 | * "must RAZ" for AArch64. | |
8261 | */ | |
8262 | g_autofree char *name = g_strdup_printf("RES_0_C0_C%d_X", i); | |
8263 | ARMCPRegInfo v8_aa32_raz_idregs = { | |
8264 | .name = name, | |
8265 | .state = ARM_CP_STATE_AA32, | |
8266 | .cp = 15, .opc1 = 0, .crn = 0, .crm = i, .opc2 = CP_ANY, | |
8267 | .access = PL1_R, .type = ARM_CP_CONST, | |
8268 | .accessfn = access_aa64_tid3, | |
8269 | .resetvalue = 0 }; | |
8270 | define_one_arm_cp_reg(cpu, &v8_aa32_raz_idregs); | |
8271 | } | |
b0d2b7d0 | 8272 | } |
99a90811 RH |
8273 | |
8274 | /* | |
8275 | * Register the base EL2 cpregs. | |
8276 | * Pre v8, these registers are implemented only as part of the | |
8277 | * Virtualization Extensions (EL2 present). Beginning with v8, | |
8278 | * if EL2 is missing but EL3 is enabled, mostly these become | |
8279 | * RES0 from EL3, with some specific exceptions. | |
8280 | */ | |
8281 | if (arm_feature(env, ARM_FEATURE_EL2) | |
8282 | || (arm_feature(env, ARM_FEATURE_EL3) | |
8283 | && arm_feature(env, ARM_FEATURE_V8))) { | |
f0d574d6 | 8284 | uint64_t vmpidr_def = mpidr_read_val(env); |
731de9e6 EI |
8285 | ARMCPRegInfo vpidr_regs[] = { |
8286 | { .name = "VPIDR", .state = ARM_CP_STATE_AA32, | |
8287 | .cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0, | |
8288 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
696ba377 RH |
8289 | .resetvalue = cpu->midr, |
8290 | .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_C_NZ, | |
36476562 | 8291 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vpidr_el2) }, |
731de9e6 EI |
8292 | { .name = "VPIDR_EL2", .state = ARM_CP_STATE_AA64, |
8293 | .opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 0, | |
8294 | .access = PL2_RW, .resetvalue = cpu->midr, | |
696ba377 | 8295 | .type = ARM_CP_EL3_NO_EL2_C_NZ, |
731de9e6 | 8296 | .fieldoffset = offsetof(CPUARMState, cp15.vpidr_el2) }, |
f0d574d6 EI |
8297 | { .name = "VMPIDR", .state = ARM_CP_STATE_AA32, |
8298 | .cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5, | |
8299 | .access = PL2_RW, .accessfn = access_el3_aa32ns, | |
696ba377 RH |
8300 | .resetvalue = vmpidr_def, |
8301 | .type = ARM_CP_ALIAS | ARM_CP_EL3_NO_EL2_C_NZ, | |
36476562 | 8302 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vmpidr_el2) }, |
f0d574d6 EI |
8303 | { .name = "VMPIDR_EL2", .state = ARM_CP_STATE_AA64, |
8304 | .opc0 = 3, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 5, | |
696ba377 RH |
8305 | .access = PL2_RW, .resetvalue = vmpidr_def, |
8306 | .type = ARM_CP_EL3_NO_EL2_C_NZ, | |
f0d574d6 | 8307 | .fieldoffset = offsetof(CPUARMState, cp15.vmpidr_el2) }, |
731de9e6 | 8308 | }; |
24526bb9 PM |
8309 | /* |
8310 | * The only field of MDCR_EL2 that has a defined architectural reset | |
8311 | * value is MDCR_EL2.HPMN which should reset to the value of PMCR_EL0.N. | |
8312 | */ | |
8313 | ARMCPRegInfo mdcr_el2 = { | |
7f4fbfb5 | 8314 | .name = "MDCR_EL2", .state = ARM_CP_STATE_BOTH, .type = ARM_CP_IO, |
24526bb9 | 8315 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 1, .opc2 = 1, |
01765386 | 8316 | .writefn = mdcr_el2_write, |
24526bb9 PM |
8317 | .access = PL2_RW, .resetvalue = pmu_num_counters(env), |
8318 | .fieldoffset = offsetof(CPUARMState, cp15.mdcr_el2), | |
8319 | }; | |
8320 | define_one_arm_cp_reg(cpu, &mdcr_el2); | |
731de9e6 | 8321 | define_arm_cp_regs(cpu, vpidr_regs); |
4771cd01 | 8322 | define_arm_cp_regs(cpu, el2_cp_reginfo); |
ce4afed8 PM |
8323 | if (arm_feature(env, ARM_FEATURE_V8)) { |
8324 | define_arm_cp_regs(cpu, el2_v8_cp_reginfo); | |
8325 | } | |
e9152ee9 RDC |
8326 | if (cpu_isar_feature(aa64_sel2, cpu)) { |
8327 | define_arm_cp_regs(cpu, el2_sec_cp_reginfo); | |
8328 | } | |
be8e8128 GB |
8329 | /* RVBAR_EL2 is only implemented if EL2 is the highest EL */ |
8330 | if (!arm_feature(env, ARM_FEATURE_EL3)) { | |
910e4f24 TR |
8331 | ARMCPRegInfo rvbar[] = { |
8332 | { | |
8333 | .name = "RVBAR_EL2", .state = ARM_CP_STATE_AA64, | |
8334 | .opc0 = 3, .opc1 = 4, .crn = 12, .crm = 0, .opc2 = 1, | |
8335 | .access = PL2_R, | |
8336 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
8337 | }, | |
8338 | { .name = "RVBAR", .type = ARM_CP_ALIAS, | |
8339 | .cp = 15, .opc1 = 0, .crn = 12, .crm = 0, .opc2 = 1, | |
8340 | .access = PL2_R, | |
8341 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
8342 | }, | |
be8e8128 | 8343 | }; |
910e4f24 | 8344 | define_arm_cp_regs(cpu, rvbar); |
be8e8128 | 8345 | } |
3b685ba7 | 8346 | } |
99a90811 RH |
8347 | |
8348 | /* Register the base EL3 cpregs. */ | |
81547d66 | 8349 | if (arm_feature(env, ARM_FEATURE_EL3)) { |
0f1a3b24 | 8350 | define_arm_cp_regs(cpu, el3_cp_reginfo); |
e24fdd23 PM |
8351 | ARMCPRegInfo el3_regs[] = { |
8352 | { .name = "RVBAR_EL3", .state = ARM_CP_STATE_AA64, | |
8353 | .opc0 = 3, .opc1 = 6, .crn = 12, .crm = 0, .opc2 = 1, | |
4a7319b7 EI |
8354 | .access = PL3_R, |
8355 | .fieldoffset = offsetof(CPUARMState, cp15.rvbar), | |
8356 | }, | |
e24fdd23 PM |
8357 | { .name = "SCTLR_EL3", .state = ARM_CP_STATE_AA64, |
8358 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 0, .opc2 = 0, | |
8359 | .access = PL3_RW, | |
8360 | .raw_writefn = raw_write, .writefn = sctlr_write, | |
8361 | .fieldoffset = offsetof(CPUARMState, cp15.sctlr_el[3]), | |
8362 | .resetvalue = cpu->reset_sctlr }, | |
be8e8128 | 8363 | }; |
e24fdd23 PM |
8364 | |
8365 | define_arm_cp_regs(cpu, el3_regs); | |
81547d66 | 8366 | } |
9b37a28c FR |
8367 | /* |
8368 | * The behaviour of NSACR is sufficiently various that we don't | |
2f027fc5 PM |
8369 | * try to describe it in a single reginfo: |
8370 | * if EL3 is 64 bit, then trap to EL3 from S EL1, | |
8371 | * reads as constant 0xc00 from NS EL1 and NS EL2 | |
8372 | * if EL3 is 32 bit, then RW at EL3, RO at NS EL1 and NS EL2 | |
8373 | * if v7 without EL3, register doesn't exist | |
8374 | * if v8 without EL3, reads as constant 0xc00 from NS EL1 and NS EL2 | |
8375 | */ | |
8376 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
8377 | if (arm_feature(env, ARM_FEATURE_AARCH64)) { | |
10b0220e | 8378 | static const ARMCPRegInfo nsacr = { |
2f027fc5 PM |
8379 | .name = "NSACR", .type = ARM_CP_CONST, |
8380 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 2, | |
8381 | .access = PL1_RW, .accessfn = nsacr_access, | |
8382 | .resetvalue = 0xc00 | |
8383 | }; | |
8384 | define_one_arm_cp_reg(cpu, &nsacr); | |
8385 | } else { | |
10b0220e | 8386 | static const ARMCPRegInfo nsacr = { |
2f027fc5 PM |
8387 | .name = "NSACR", |
8388 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 2, | |
8389 | .access = PL3_RW | PL1_R, | |
8390 | .resetvalue = 0, | |
8391 | .fieldoffset = offsetof(CPUARMState, cp15.nsacr) | |
8392 | }; | |
8393 | define_one_arm_cp_reg(cpu, &nsacr); | |
8394 | } | |
8395 | } else { | |
8396 | if (arm_feature(env, ARM_FEATURE_V8)) { | |
10b0220e | 8397 | static const ARMCPRegInfo nsacr = { |
2f027fc5 PM |
8398 | .name = "NSACR", .type = ARM_CP_CONST, |
8399 | .cp = 15, .opc1 = 0, .crn = 1, .crm = 1, .opc2 = 2, | |
8400 | .access = PL1_R, | |
8401 | .resetvalue = 0xc00 | |
8402 | }; | |
8403 | define_one_arm_cp_reg(cpu, &nsacr); | |
8404 | } | |
8405 | } | |
8406 | ||
452a0955 | 8407 | if (arm_feature(env, ARM_FEATURE_PMSA)) { |
6cb0b013 PC |
8408 | if (arm_feature(env, ARM_FEATURE_V6)) { |
8409 | /* PMSAv6 not implemented */ | |
8410 | assert(arm_feature(env, ARM_FEATURE_V7)); | |
8411 | define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo); | |
8412 | define_arm_cp_regs(cpu, pmsav7_cp_reginfo); | |
8413 | } else { | |
8414 | define_arm_cp_regs(cpu, pmsav5_cp_reginfo); | |
8415 | } | |
18032bec | 8416 | } else { |
8e5d75c9 | 8417 | define_arm_cp_regs(cpu, vmsa_pmsa_cp_reginfo); |
18032bec | 8418 | define_arm_cp_regs(cpu, vmsa_cp_reginfo); |
4036b7d1 PM |
8419 | /* TTCBR2 is introduced with ARMv8.2-AA32HPD. */ |
8420 | if (cpu_isar_feature(aa32_hpd, cpu)) { | |
ab638a32 RH |
8421 | define_one_arm_cp_reg(cpu, &ttbcr2_reginfo); |
8422 | } | |
18032bec | 8423 | } |
c326b979 PM |
8424 | if (arm_feature(env, ARM_FEATURE_THUMB2EE)) { |
8425 | define_arm_cp_regs(cpu, t2ee_cp_reginfo); | |
8426 | } | |
6cc7a3ae PM |
8427 | if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) { |
8428 | define_arm_cp_regs(cpu, generic_timer_cp_reginfo); | |
8429 | } | |
4a501606 PM |
8430 | if (arm_feature(env, ARM_FEATURE_VAPA)) { |
8431 | define_arm_cp_regs(cpu, vapa_cp_reginfo); | |
8432 | } | |
c4804214 PM |
8433 | if (arm_feature(env, ARM_FEATURE_CACHE_TEST_CLEAN)) { |
8434 | define_arm_cp_regs(cpu, cache_test_clean_cp_reginfo); | |
8435 | } | |
8436 | if (arm_feature(env, ARM_FEATURE_CACHE_DIRTY_REG)) { | |
8437 | define_arm_cp_regs(cpu, cache_dirty_status_cp_reginfo); | |
8438 | } | |
8439 | if (arm_feature(env, ARM_FEATURE_CACHE_BLOCK_OPS)) { | |
8440 | define_arm_cp_regs(cpu, cache_block_ops_cp_reginfo); | |
8441 | } | |
18032bec PM |
8442 | if (arm_feature(env, ARM_FEATURE_OMAPCP)) { |
8443 | define_arm_cp_regs(cpu, omap_cp_reginfo); | |
8444 | } | |
34f90529 PM |
8445 | if (arm_feature(env, ARM_FEATURE_STRONGARM)) { |
8446 | define_arm_cp_regs(cpu, strongarm_cp_reginfo); | |
8447 | } | |
1047b9d7 PM |
8448 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { |
8449 | define_arm_cp_regs(cpu, xscale_cp_reginfo); | |
8450 | } | |
8451 | if (arm_feature(env, ARM_FEATURE_DUMMY_C15_REGS)) { | |
8452 | define_arm_cp_regs(cpu, dummy_c15_cp_reginfo); | |
8453 | } | |
7ac681cf PM |
8454 | if (arm_feature(env, ARM_FEATURE_LPAE)) { |
8455 | define_arm_cp_regs(cpu, lpae_cp_reginfo); | |
8456 | } | |
873b73c0 | 8457 | if (cpu_isar_feature(aa32_jazelle, cpu)) { |
f96f3d5f MZ |
8458 | define_arm_cp_regs(cpu, jazelle_regs); |
8459 | } | |
9b37a28c FR |
8460 | /* |
8461 | * Slightly awkwardly, the OMAP and StrongARM cores need all of | |
7884849c PM |
8462 | * cp15 crn=0 to be writes-ignored, whereas for other cores they should |
8463 | * be read-only (ie write causes UNDEF exception). | |
8464 | */ | |
8465 | { | |
00a29f3d | 8466 | ARMCPRegInfo id_pre_v8_midr_cp_reginfo[] = { |
9b37a28c FR |
8467 | /* |
8468 | * Pre-v8 MIDR space. | |
00a29f3d | 8469 | * Note that the MIDR isn't a simple constant register because |
7884849c PM |
8470 | * of the TI925 behaviour where writes to another register can |
8471 | * cause the MIDR value to change. | |
97ce8d61 PC |
8472 | * |
8473 | * Unimplemented registers in the c15 0 0 0 space default to | |
8474 | * MIDR. Define MIDR first as this entire space, then CTR, TCMTR | |
8475 | * and friends override accordingly. | |
7884849c PM |
8476 | */ |
8477 | { .name = "MIDR", | |
97ce8d61 | 8478 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = CP_ANY, |
7884849c | 8479 | .access = PL1_R, .resetvalue = cpu->midr, |
d4e6df63 | 8480 | .writefn = arm_cp_write_ignore, .raw_writefn = raw_write, |
731de9e6 | 8481 | .readfn = midr_read, |
97ce8d61 PC |
8482 | .fieldoffset = offsetof(CPUARMState, cp15.c0_cpuid), |
8483 | .type = ARM_CP_OVERRIDE }, | |
7884849c PM |
8484 | /* crn = 0 op1 = 0 crm = 3..7 : currently unassigned; we RAZ. */ |
8485 | { .name = "DUMMY", | |
8486 | .cp = 15, .crn = 0, .crm = 3, .opc1 = 0, .opc2 = CP_ANY, | |
8487 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8488 | { .name = "DUMMY", | |
8489 | .cp = 15, .crn = 0, .crm = 4, .opc1 = 0, .opc2 = CP_ANY, | |
8490 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8491 | { .name = "DUMMY", | |
8492 | .cp = 15, .crn = 0, .crm = 5, .opc1 = 0, .opc2 = CP_ANY, | |
8493 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8494 | { .name = "DUMMY", | |
8495 | .cp = 15, .crn = 0, .crm = 6, .opc1 = 0, .opc2 = CP_ANY, | |
8496 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
8497 | { .name = "DUMMY", | |
8498 | .cp = 15, .crn = 0, .crm = 7, .opc1 = 0, .opc2 = CP_ANY, | |
8499 | .access = PL1_R, .type = ARM_CP_CONST, .resetvalue = 0 }, | |
7884849c | 8500 | }; |
00a29f3d | 8501 | ARMCPRegInfo id_v8_midr_cp_reginfo[] = { |
00a29f3d PM |
8502 | { .name = "MIDR_EL1", .state = ARM_CP_STATE_BOTH, |
8503 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 0, | |
731de9e6 EI |
8504 | .access = PL1_R, .type = ARM_CP_NO_RAW, .resetvalue = cpu->midr, |
8505 | .fieldoffset = offsetof(CPUARMState, cp15.c0_cpuid), | |
8506 | .readfn = midr_read }, | |
c7f786ab | 8507 | /* crn = 0 op1 = 0 crm = 0 op2 = 7 : AArch32 aliases of MIDR */ |
ac00c79f SF |
8508 | { .name = "MIDR", .type = ARM_CP_ALIAS | ARM_CP_CONST, |
8509 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 7, | |
8510 | .access = PL1_R, .resetvalue = cpu->midr }, | |
00a29f3d PM |
8511 | { .name = "REVIDR_EL1", .state = ARM_CP_STATE_BOTH, |
8512 | .opc0 = 3, .opc1 = 0, .crn = 0, .crm = 0, .opc2 = 6, | |
93fbc983 MZ |
8513 | .access = PL1_R, |
8514 | .accessfn = access_aa64_tid1, | |
8515 | .type = ARM_CP_CONST, .resetvalue = cpu->revidr }, | |
00a29f3d | 8516 | }; |
c7f786ab TR |
8517 | ARMCPRegInfo id_v8_midr_alias_cp_reginfo = { |
8518 | .name = "MIDR", .type = ARM_CP_ALIAS | ARM_CP_CONST, | |
8519 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 4, | |
8520 | .access = PL1_R, .resetvalue = cpu->midr | |
8521 | }; | |
00a29f3d PM |
8522 | ARMCPRegInfo id_cp_reginfo[] = { |
8523 | /* These are common to v8 and pre-v8 */ | |
8524 | { .name = "CTR", | |
8525 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 1, | |
630fcd4d MZ |
8526 | .access = PL1_R, .accessfn = ctr_el0_access, |
8527 | .type = ARM_CP_CONST, .resetvalue = cpu->ctr }, | |
00a29f3d PM |
8528 | { .name = "CTR_EL0", .state = ARM_CP_STATE_AA64, |
8529 | .opc0 = 3, .opc1 = 3, .opc2 = 1, .crn = 0, .crm = 0, | |
8530 | .access = PL0_R, .accessfn = ctr_el0_access, | |
8531 | .type = ARM_CP_CONST, .resetvalue = cpu->ctr }, | |
8532 | /* TCMTR and TLBTR exist in v8 but have no 64-bit versions */ | |
8533 | { .name = "TCMTR", | |
8534 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 2, | |
93fbc983 MZ |
8535 | .access = PL1_R, |
8536 | .accessfn = access_aa32_tid1, | |
8537 | .type = ARM_CP_CONST, .resetvalue = 0 }, | |
00a29f3d | 8538 | }; |
8085ce63 PC |
8539 | /* TLBTR is specific to VMSA */ |
8540 | ARMCPRegInfo id_tlbtr_reginfo = { | |
8541 | .name = "TLBTR", | |
8542 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 3, | |
93fbc983 MZ |
8543 | .access = PL1_R, |
8544 | .accessfn = access_aa32_tid1, | |
8545 | .type = ARM_CP_CONST, .resetvalue = 0, | |
8085ce63 | 8546 | }; |
3281af81 PC |
8547 | /* MPUIR is specific to PMSA V6+ */ |
8548 | ARMCPRegInfo id_mpuir_reginfo = { | |
8549 | .name = "MPUIR", | |
8550 | .cp = 15, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 4, | |
8551 | .access = PL1_R, .type = ARM_CP_CONST, | |
8552 | .resetvalue = cpu->pmsav7_dregion << 8 | |
8553 | }; | |
761c4642 TR |
8554 | /* HMPUIR is specific to PMSA V8 */ |
8555 | ARMCPRegInfo id_hmpuir_reginfo = { | |
8556 | .name = "HMPUIR", | |
8557 | .cp = 15, .opc1 = 4, .crn = 0, .crm = 0, .opc2 = 4, | |
8558 | .access = PL2_R, .type = ARM_CP_CONST, | |
8559 | .resetvalue = cpu->pmsav8r_hdregion | |
8560 | }; | |
10b0220e | 8561 | static const ARMCPRegInfo crn0_wi_reginfo = { |
7884849c PM |
8562 | .name = "CRN0_WI", .cp = 15, .crn = 0, .crm = CP_ANY, |
8563 | .opc1 = CP_ANY, .opc2 = CP_ANY, .access = PL1_W, | |
8564 | .type = ARM_CP_NOP | ARM_CP_OVERRIDE | |
8565 | }; | |
6c5c0fec | 8566 | #ifdef CONFIG_USER_ONLY |
10b0220e | 8567 | static const ARMCPRegUserSpaceInfo id_v8_user_midr_cp_reginfo[] = { |
6c5c0fec | 8568 | { .name = "MIDR_EL1", |
bc6bd20e ZS |
8569 | .exported_bits = R_MIDR_EL1_REVISION_MASK | |
8570 | R_MIDR_EL1_PARTNUM_MASK | | |
8571 | R_MIDR_EL1_ARCHITECTURE_MASK | | |
8572 | R_MIDR_EL1_VARIANT_MASK | | |
8573 | R_MIDR_EL1_IMPLEMENTER_MASK }, | |
8574 | { .name = "REVIDR_EL1" }, | |
6c5c0fec AB |
8575 | }; |
8576 | modify_arm_cp_regs(id_v8_midr_cp_reginfo, id_v8_user_midr_cp_reginfo); | |
8577 | #endif | |
7884849c PM |
8578 | if (arm_feature(env, ARM_FEATURE_OMAPCP) || |
8579 | arm_feature(env, ARM_FEATURE_STRONGARM)) { | |
5809ac57 | 8580 | size_t i; |
9b37a28c FR |
8581 | /* |
8582 | * Register the blanket "writes ignored" value first to cover the | |
a703eda1 PC |
8583 | * whole space. Then update the specific ID registers to allow write |
8584 | * access, so that they ignore writes rather than causing them to | |
8585 | * UNDEF. | |
7884849c PM |
8586 | */ |
8587 | define_one_arm_cp_reg(cpu, &crn0_wi_reginfo); | |
5809ac57 RH |
8588 | for (i = 0; i < ARRAY_SIZE(id_pre_v8_midr_cp_reginfo); ++i) { |
8589 | id_pre_v8_midr_cp_reginfo[i].access = PL1_RW; | |
00a29f3d | 8590 | } |
5809ac57 RH |
8591 | for (i = 0; i < ARRAY_SIZE(id_cp_reginfo); ++i) { |
8592 | id_cp_reginfo[i].access = PL1_RW; | |
7884849c | 8593 | } |
10006112 | 8594 | id_mpuir_reginfo.access = PL1_RW; |
3281af81 | 8595 | id_tlbtr_reginfo.access = PL1_RW; |
7884849c | 8596 | } |
00a29f3d PM |
8597 | if (arm_feature(env, ARM_FEATURE_V8)) { |
8598 | define_arm_cp_regs(cpu, id_v8_midr_cp_reginfo); | |
c7f786ab TR |
8599 | if (!arm_feature(env, ARM_FEATURE_PMSA)) { |
8600 | define_one_arm_cp_reg(cpu, &id_v8_midr_alias_cp_reginfo); | |
8601 | } | |
00a29f3d PM |
8602 | } else { |
8603 | define_arm_cp_regs(cpu, id_pre_v8_midr_cp_reginfo); | |
8604 | } | |
a703eda1 | 8605 | define_arm_cp_regs(cpu, id_cp_reginfo); |
452a0955 | 8606 | if (!arm_feature(env, ARM_FEATURE_PMSA)) { |
8085ce63 | 8607 | define_one_arm_cp_reg(cpu, &id_tlbtr_reginfo); |
761c4642 TR |
8608 | } else if (arm_feature(env, ARM_FEATURE_PMSA) && |
8609 | arm_feature(env, ARM_FEATURE_V8)) { | |
8610 | uint32_t i = 0; | |
8611 | char *tmp_string; | |
8612 | ||
8613 | define_one_arm_cp_reg(cpu, &id_mpuir_reginfo); | |
8614 | define_one_arm_cp_reg(cpu, &id_hmpuir_reginfo); | |
8615 | define_arm_cp_regs(cpu, pmsav8r_cp_reginfo); | |
8616 | ||
8617 | /* Register alias is only valid for first 32 indexes */ | |
8618 | for (i = 0; i < MIN(cpu->pmsav7_dregion, 32); ++i) { | |
8619 | uint8_t crm = 0b1000 | extract32(i, 1, 3); | |
8620 | uint8_t opc1 = extract32(i, 4, 1); | |
8621 | uint8_t opc2 = extract32(i, 0, 1) << 2; | |
8622 | ||
8623 | tmp_string = g_strdup_printf("PRBAR%u", i); | |
8624 | ARMCPRegInfo tmp_prbarn_reginfo = { | |
8625 | .name = tmp_string, .type = ARM_CP_ALIAS | ARM_CP_NO_RAW, | |
8626 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8627 | .access = PL1_RW, .resetvalue = 0, | |
8628 | .accessfn = access_tvm_trvm, | |
8629 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8630 | }; | |
8631 | define_one_arm_cp_reg(cpu, &tmp_prbarn_reginfo); | |
8632 | g_free(tmp_string); | |
8633 | ||
8634 | opc2 = extract32(i, 0, 1) << 2 | 0x1; | |
8635 | tmp_string = g_strdup_printf("PRLAR%u", i); | |
8636 | ARMCPRegInfo tmp_prlarn_reginfo = { | |
8637 | .name = tmp_string, .type = ARM_CP_ALIAS | ARM_CP_NO_RAW, | |
8638 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8639 | .access = PL1_RW, .resetvalue = 0, | |
8640 | .accessfn = access_tvm_trvm, | |
8641 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8642 | }; | |
8643 | define_one_arm_cp_reg(cpu, &tmp_prlarn_reginfo); | |
8644 | g_free(tmp_string); | |
8645 | } | |
8646 | ||
8647 | /* Register alias is only valid for first 32 indexes */ | |
8648 | for (i = 0; i < MIN(cpu->pmsav8r_hdregion, 32); ++i) { | |
8649 | uint8_t crm = 0b1000 | extract32(i, 1, 3); | |
8650 | uint8_t opc1 = 0b100 | extract32(i, 4, 1); | |
8651 | uint8_t opc2 = extract32(i, 0, 1) << 2; | |
8652 | ||
8653 | tmp_string = g_strdup_printf("HPRBAR%u", i); | |
8654 | ARMCPRegInfo tmp_hprbarn_reginfo = { | |
8655 | .name = tmp_string, | |
8656 | .type = ARM_CP_NO_RAW, | |
8657 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8658 | .access = PL2_RW, .resetvalue = 0, | |
8659 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8660 | }; | |
8661 | define_one_arm_cp_reg(cpu, &tmp_hprbarn_reginfo); | |
8662 | g_free(tmp_string); | |
8663 | ||
8664 | opc2 = extract32(i, 0, 1) << 2 | 0x1; | |
8665 | tmp_string = g_strdup_printf("HPRLAR%u", i); | |
8666 | ARMCPRegInfo tmp_hprlarn_reginfo = { | |
8667 | .name = tmp_string, | |
8668 | .type = ARM_CP_NO_RAW, | |
8669 | .cp = 15, .opc1 = opc1, .crn = 6, .crm = crm, .opc2 = opc2, | |
8670 | .access = PL2_RW, .resetvalue = 0, | |
8671 | .writefn = pmsav8r_regn_write, .readfn = pmsav8r_regn_read | |
8672 | }; | |
8673 | define_one_arm_cp_reg(cpu, &tmp_hprlarn_reginfo); | |
8674 | g_free(tmp_string); | |
8675 | } | |
3281af81 PC |
8676 | } else if (arm_feature(env, ARM_FEATURE_V7)) { |
8677 | define_one_arm_cp_reg(cpu, &id_mpuir_reginfo); | |
8085ce63 | 8678 | } |
7884849c PM |
8679 | } |
8680 | ||
97ce8d61 | 8681 | if (arm_feature(env, ARM_FEATURE_MPIDR)) { |
52264166 AB |
8682 | ARMCPRegInfo mpidr_cp_reginfo[] = { |
8683 | { .name = "MPIDR_EL1", .state = ARM_CP_STATE_BOTH, | |
8684 | .opc0 = 3, .crn = 0, .crm = 0, .opc1 = 0, .opc2 = 5, | |
8685 | .access = PL1_R, .readfn = mpidr_read, .type = ARM_CP_NO_RAW }, | |
52264166 AB |
8686 | }; |
8687 | #ifdef CONFIG_USER_ONLY | |
10b0220e | 8688 | static const ARMCPRegUserSpaceInfo mpidr_user_cp_reginfo[] = { |
52264166 AB |
8689 | { .name = "MPIDR_EL1", |
8690 | .fixed_bits = 0x0000000080000000 }, | |
52264166 AB |
8691 | }; |
8692 | modify_arm_cp_regs(mpidr_cp_reginfo, mpidr_user_cp_reginfo); | |
8693 | #endif | |
97ce8d61 PC |
8694 | define_arm_cp_regs(cpu, mpidr_cp_reginfo); |
8695 | } | |
8696 | ||
2771db27 | 8697 | if (arm_feature(env, ARM_FEATURE_AUXCR)) { |
834a6c69 PM |
8698 | ARMCPRegInfo auxcr_reginfo[] = { |
8699 | { .name = "ACTLR_EL1", .state = ARM_CP_STATE_BOTH, | |
8700 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 1, | |
99602377 RH |
8701 | .access = PL1_RW, .accessfn = access_tacr, |
8702 | .type = ARM_CP_CONST, .resetvalue = cpu->reset_auxcr }, | |
834a6c69 PM |
8703 | { .name = "ACTLR_EL2", .state = ARM_CP_STATE_BOTH, |
8704 | .opc0 = 3, .opc1 = 4, .crn = 1, .crm = 0, .opc2 = 1, | |
8705 | .access = PL2_RW, .type = ARM_CP_CONST, | |
8706 | .resetvalue = 0 }, | |
8707 | { .name = "ACTLR_EL3", .state = ARM_CP_STATE_AA64, | |
8708 | .opc0 = 3, .opc1 = 6, .crn = 1, .crm = 0, .opc2 = 1, | |
8709 | .access = PL3_RW, .type = ARM_CP_CONST, | |
8710 | .resetvalue = 0 }, | |
2771db27 | 8711 | }; |
834a6c69 | 8712 | define_arm_cp_regs(cpu, auxcr_reginfo); |
f6287c24 PM |
8713 | if (cpu_isar_feature(aa32_ac2, cpu)) { |
8714 | define_arm_cp_regs(cpu, actlr2_hactlr2_reginfo); | |
0e0456ab | 8715 | } |
2771db27 PM |
8716 | } |
8717 | ||
d8ba780b | 8718 | if (arm_feature(env, ARM_FEATURE_CBAR)) { |
d56974af LM |
8719 | /* |
8720 | * CBAR is IMPDEF, but common on Arm Cortex-A implementations. | |
8721 | * There are two flavours: | |
8722 | * (1) older 32-bit only cores have a simple 32-bit CBAR | |
8723 | * (2) 64-bit cores have a 64-bit CBAR visible to AArch64, plus a | |
8724 | * 32-bit register visible to AArch32 at a different encoding | |
8725 | * to the "flavour 1" register and with the bits rearranged to | |
8726 | * be able to squash a 64-bit address into the 32-bit view. | |
8727 | * We distinguish the two via the ARM_FEATURE_AARCH64 flag, but | |
8728 | * in future if we support AArch32-only configs of some of the | |
8729 | * AArch64 cores we might need to add a specific feature flag | |
8730 | * to indicate cores with "flavour 2" CBAR. | |
8731 | */ | |
f318cec6 PM |
8732 | if (arm_feature(env, ARM_FEATURE_AARCH64)) { |
8733 | /* 32 bit view is [31:18] 0...0 [43:32]. */ | |
8734 | uint32_t cbar32 = (extract64(cpu->reset_cbar, 18, 14) << 18) | |
8735 | | extract64(cpu->reset_cbar, 32, 12); | |
8736 | ARMCPRegInfo cbar_reginfo[] = { | |
8737 | { .name = "CBAR", | |
8738 | .type = ARM_CP_CONST, | |
d56974af LM |
8739 | .cp = 15, .crn = 15, .crm = 3, .opc1 = 1, .opc2 = 0, |
8740 | .access = PL1_R, .resetvalue = cbar32 }, | |
f318cec6 PM |
8741 | { .name = "CBAR_EL1", .state = ARM_CP_STATE_AA64, |
8742 | .type = ARM_CP_CONST, | |
8743 | .opc0 = 3, .opc1 = 1, .crn = 15, .crm = 3, .opc2 = 0, | |
d56974af | 8744 | .access = PL1_R, .resetvalue = cpu->reset_cbar }, |
f318cec6 PM |
8745 | }; |
8746 | /* We don't implement a r/w 64 bit CBAR currently */ | |
8747 | assert(arm_feature(env, ARM_FEATURE_CBAR_RO)); | |
8748 | define_arm_cp_regs(cpu, cbar_reginfo); | |
8749 | } else { | |
8750 | ARMCPRegInfo cbar = { | |
8751 | .name = "CBAR", | |
8752 | .cp = 15, .crn = 15, .crm = 0, .opc1 = 4, .opc2 = 0, | |
04215eb1 | 8753 | .access = PL1_R | PL3_W, .resetvalue = cpu->reset_cbar, |
f318cec6 PM |
8754 | .fieldoffset = offsetof(CPUARMState, |
8755 | cp15.c15_config_base_address) | |
8756 | }; | |
8757 | if (arm_feature(env, ARM_FEATURE_CBAR_RO)) { | |
8758 | cbar.access = PL1_R; | |
8759 | cbar.fieldoffset = 0; | |
8760 | cbar.type = ARM_CP_CONST; | |
8761 | } | |
8762 | define_one_arm_cp_reg(cpu, &cbar); | |
8763 | } | |
d8ba780b PC |
8764 | } |
8765 | ||
91db4642 | 8766 | if (arm_feature(env, ARM_FEATURE_VBAR)) { |
10b0220e | 8767 | static const ARMCPRegInfo vbar_cp_reginfo[] = { |
91db4642 CLG |
8768 | { .name = "VBAR", .state = ARM_CP_STATE_BOTH, |
8769 | .opc0 = 3, .crn = 12, .crm = 0, .opc1 = 0, .opc2 = 0, | |
8770 | .access = PL1_RW, .writefn = vbar_write, | |
8771 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.vbar_s), | |
8772 | offsetof(CPUARMState, cp15.vbar_ns) }, | |
8773 | .resetvalue = 0 }, | |
91db4642 CLG |
8774 | }; |
8775 | define_arm_cp_regs(cpu, vbar_cp_reginfo); | |
8776 | } | |
8777 | ||
2771db27 PM |
8778 | /* Generic registers whose values depend on the implementation */ |
8779 | { | |
8780 | ARMCPRegInfo sctlr = { | |
5ebafdf3 | 8781 | .name = "SCTLR", .state = ARM_CP_STATE_BOTH, |
137feaa9 | 8782 | .opc0 = 3, .opc1 = 0, .crn = 1, .crm = 0, .opc2 = 0, |
84929218 | 8783 | .access = PL1_RW, .accessfn = access_tvm_trvm, |
137feaa9 FA |
8784 | .bank_fieldoffsets = { offsetof(CPUARMState, cp15.sctlr_s), |
8785 | offsetof(CPUARMState, cp15.sctlr_ns) }, | |
d4e6df63 PM |
8786 | .writefn = sctlr_write, .resetvalue = cpu->reset_sctlr, |
8787 | .raw_writefn = raw_write, | |
2771db27 PM |
8788 | }; |
8789 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { | |
9b37a28c FR |
8790 | /* |
8791 | * Normally we would always end the TB on an SCTLR write, but Linux | |
2771db27 PM |
8792 | * arch/arm/mach-pxa/sleep.S expects two instructions following |
8793 | * an MMU enable to execute from cache. Imitate this behaviour. | |
8794 | */ | |
8795 | sctlr.type |= ARM_CP_SUPPRESS_TB_END; | |
8796 | } | |
8797 | define_one_arm_cp_reg(cpu, &sctlr); | |
761c4642 TR |
8798 | |
8799 | if (arm_feature(env, ARM_FEATURE_PMSA) && | |
8800 | arm_feature(env, ARM_FEATURE_V8)) { | |
8801 | ARMCPRegInfo vsctlr = { | |
8802 | .name = "VSCTLR", .state = ARM_CP_STATE_AA32, | |
8803 | .cp = 15, .opc1 = 4, .crn = 2, .crm = 0, .opc2 = 0, | |
8804 | .access = PL2_RW, .resetvalue = 0x0, | |
8805 | .fieldoffset = offsetoflow32(CPUARMState, cp15.vsctlr), | |
8806 | }; | |
8807 | define_one_arm_cp_reg(cpu, &vsctlr); | |
8808 | } | |
2771db27 | 8809 | } |
5be5e8ed | 8810 | |
2d7137c1 | 8811 | if (cpu_isar_feature(aa64_lor, cpu)) { |
2d7137c1 RH |
8812 | define_arm_cp_regs(cpu, lor_reginfo); |
8813 | } | |
220f508f RH |
8814 | if (cpu_isar_feature(aa64_pan, cpu)) { |
8815 | define_one_arm_cp_reg(cpu, &pan_reginfo); | |
8816 | } | |
04b07d29 RH |
8817 | #ifndef CONFIG_USER_ONLY |
8818 | if (cpu_isar_feature(aa64_ats1e1, cpu)) { | |
8819 | define_arm_cp_regs(cpu, ats1e1_reginfo); | |
8820 | } | |
8821 | if (cpu_isar_feature(aa32_ats1e1, cpu)) { | |
8822 | define_arm_cp_regs(cpu, ats1cp_reginfo); | |
8823 | } | |
8824 | #endif | |
9eeb7a1c RH |
8825 | if (cpu_isar_feature(aa64_uao, cpu)) { |
8826 | define_one_arm_cp_reg(cpu, &uao_reginfo); | |
8827 | } | |
2d7137c1 | 8828 | |
dc8b1853 RC |
8829 | if (cpu_isar_feature(aa64_dit, cpu)) { |
8830 | define_one_arm_cp_reg(cpu, &dit_reginfo); | |
8831 | } | |
f2f68a78 RC |
8832 | if (cpu_isar_feature(aa64_ssbs, cpu)) { |
8833 | define_one_arm_cp_reg(cpu, &ssbs_reginfo); | |
8834 | } | |
58e93b48 RH |
8835 | if (cpu_isar_feature(any_ras, cpu)) { |
8836 | define_arm_cp_regs(cpu, minimal_ras_reginfo); | |
8837 | } | |
dc8b1853 | 8838 | |
52d18727 RH |
8839 | if (cpu_isar_feature(aa64_vh, cpu) || |
8840 | cpu_isar_feature(aa64_debugv8p2, cpu)) { | |
8841 | define_one_arm_cp_reg(cpu, &contextidr_el2); | |
8842 | } | |
e2a1a461 RH |
8843 | if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { |
8844 | define_arm_cp_regs(cpu, vhe_reginfo); | |
8845 | } | |
8846 | ||
cd208a1c | 8847 | if (cpu_isar_feature(aa64_sve, cpu)) { |
60360d82 | 8848 | define_arm_cp_regs(cpu, zcr_reginfo); |
5be5e8ed | 8849 | } |
967aa94f | 8850 | |
5814d587 RH |
8851 | if (cpu_isar_feature(aa64_hcx, cpu)) { |
8852 | define_one_arm_cp_reg(cpu, &hcrx_el2_reginfo); | |
8853 | } | |
8854 | ||
967aa94f | 8855 | #ifdef TARGET_AARCH64 |
9e5ec745 RH |
8856 | if (cpu_isar_feature(aa64_sme, cpu)) { |
8857 | define_arm_cp_regs(cpu, sme_reginfo); | |
8858 | } | |
967aa94f RH |
8859 | if (cpu_isar_feature(aa64_pauth, cpu)) { |
8860 | define_arm_cp_regs(cpu, pauth_reginfo); | |
8861 | } | |
de390645 RH |
8862 | if (cpu_isar_feature(aa64_rndr, cpu)) { |
8863 | define_arm_cp_regs(cpu, rndr_reginfo); | |
8864 | } | |
84940ed8 RC |
8865 | if (cpu_isar_feature(aa64_tlbirange, cpu)) { |
8866 | define_arm_cp_regs(cpu, tlbirange_reginfo); | |
8867 | } | |
7113d618 RC |
8868 | if (cpu_isar_feature(aa64_tlbios, cpu)) { |
8869 | define_arm_cp_regs(cpu, tlbios_reginfo); | |
8870 | } | |
0d57b499 BM |
8871 | #ifndef CONFIG_USER_ONLY |
8872 | /* Data Cache clean instructions up to PoP */ | |
8873 | if (cpu_isar_feature(aa64_dcpop, cpu)) { | |
8874 | define_one_arm_cp_reg(cpu, dcpop_reg); | |
8875 | ||
8876 | if (cpu_isar_feature(aa64_dcpodp, cpu)) { | |
8877 | define_one_arm_cp_reg(cpu, dcpodp_reg); | |
8878 | } | |
8879 | } | |
8880 | #endif /*CONFIG_USER_ONLY*/ | |
4b779ceb RH |
8881 | |
8882 | /* | |
8883 | * If full MTE is enabled, add all of the system registers. | |
8884 | * If only "instructions available at EL0" are enabled, | |
8885 | * then define only a RAZ/WI version of PSTATE.TCO. | |
8886 | */ | |
8887 | if (cpu_isar_feature(aa64_mte, cpu)) { | |
8888 | define_arm_cp_regs(cpu, mte_reginfo); | |
5463df16 | 8889 | define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo); |
4b779ceb RH |
8890 | } else if (cpu_isar_feature(aa64_mte_insn_reg, cpu)) { |
8891 | define_arm_cp_regs(cpu, mte_tco_ro_reginfo); | |
5463df16 | 8892 | define_arm_cp_regs(cpu, mte_el0_cacheop_reginfo); |
4b779ceb | 8893 | } |
7cb1e618 RH |
8894 | |
8895 | if (cpu_isar_feature(aa64_scxtnum, cpu)) { | |
8896 | define_arm_cp_regs(cpu, scxtnum_reginfo); | |
8897 | } | |
967aa94f | 8898 | #endif |
cb570bd3 | 8899 | |
22e57073 | 8900 | if (cpu_isar_feature(any_predinv, cpu)) { |
cb570bd3 RH |
8901 | define_arm_cp_regs(cpu, predinv_reginfo); |
8902 | } | |
e2cce18f | 8903 | |
957e6155 PM |
8904 | if (cpu_isar_feature(any_ccidx, cpu)) { |
8905 | define_arm_cp_regs(cpu, ccsidr2_reginfo); | |
8906 | } | |
8907 | ||
e2cce18f RH |
8908 | #ifndef CONFIG_USER_ONLY |
8909 | /* | |
8910 | * Register redirections and aliases must be done last, | |
8911 | * after the registers from the other extensions have been defined. | |
8912 | */ | |
8913 | if (arm_feature(env, ARM_FEATURE_EL2) && cpu_isar_feature(aa64_vh, cpu)) { | |
8914 | define_arm_vh_e2h_redirects_aliases(cpu); | |
8915 | } | |
8916 | #endif | |
2ceb98c0 PM |
8917 | } |
8918 | ||
777dc784 PM |
8919 | /* Sort alphabetically by type name, except for "any". */ |
8920 | static gint arm_cpu_list_compare(gconstpointer a, gconstpointer b) | |
5adb4839 | 8921 | { |
777dc784 PM |
8922 | ObjectClass *class_a = (ObjectClass *)a; |
8923 | ObjectClass *class_b = (ObjectClass *)b; | |
8924 | const char *name_a, *name_b; | |
5adb4839 | 8925 | |
777dc784 PM |
8926 | name_a = object_class_get_name(class_a); |
8927 | name_b = object_class_get_name(class_b); | |
51492fd1 | 8928 | if (strcmp(name_a, "any-" TYPE_ARM_CPU) == 0) { |
777dc784 | 8929 | return 1; |
51492fd1 | 8930 | } else if (strcmp(name_b, "any-" TYPE_ARM_CPU) == 0) { |
777dc784 PM |
8931 | return -1; |
8932 | } else { | |
8933 | return strcmp(name_a, name_b); | |
5adb4839 PB |
8934 | } |
8935 | } | |
8936 | ||
777dc784 | 8937 | static void arm_cpu_list_entry(gpointer data, gpointer user_data) |
40f137e1 | 8938 | { |
777dc784 | 8939 | ObjectClass *oc = data; |
977c33ba | 8940 | CPUClass *cc = CPU_CLASS(oc); |
51492fd1 AF |
8941 | const char *typename; |
8942 | char *name; | |
3371d272 | 8943 | |
51492fd1 AF |
8944 | typename = object_class_get_name(oc); |
8945 | name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_ARM_CPU)); | |
977c33ba DB |
8946 | if (cc->deprecation_note) { |
8947 | qemu_printf(" %s (deprecated)\n", name); | |
8948 | } else { | |
8949 | qemu_printf(" %s\n", name); | |
8950 | } | |
51492fd1 | 8951 | g_free(name); |
777dc784 PM |
8952 | } |
8953 | ||
0442428a | 8954 | void arm_cpu_list(void) |
777dc784 | 8955 | { |
777dc784 PM |
8956 | GSList *list; |
8957 | ||
8958 | list = object_class_get_list(TYPE_ARM_CPU, false); | |
8959 | list = g_slist_sort(list, arm_cpu_list_compare); | |
0442428a MA |
8960 | qemu_printf("Available CPUs:\n"); |
8961 | g_slist_foreach(list, arm_cpu_list_entry, NULL); | |
777dc784 | 8962 | g_slist_free(list); |
40f137e1 PB |
8963 | } |
8964 | ||
78027bb6 CR |
8965 | static void arm_cpu_add_definition(gpointer data, gpointer user_data) |
8966 | { | |
8967 | ObjectClass *oc = data; | |
8968 | CpuDefinitionInfoList **cpu_list = user_data; | |
78027bb6 CR |
8969 | CpuDefinitionInfo *info; |
8970 | const char *typename; | |
8971 | ||
8972 | typename = object_class_get_name(oc); | |
8973 | info = g_malloc0(sizeof(*info)); | |
8974 | info->name = g_strndup(typename, | |
8975 | strlen(typename) - strlen("-" TYPE_ARM_CPU)); | |
8ed877b7 | 8976 | info->q_typename = g_strdup(typename); |
78027bb6 | 8977 | |
54aa3de7 | 8978 | QAPI_LIST_PREPEND(*cpu_list, info); |
78027bb6 CR |
8979 | } |
8980 | ||
25a9d6ca | 8981 | CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) |
78027bb6 CR |
8982 | { |
8983 | CpuDefinitionInfoList *cpu_list = NULL; | |
8984 | GSList *list; | |
8985 | ||
8986 | list = object_class_get_list(TYPE_ARM_CPU, false); | |
8987 | g_slist_foreach(list, arm_cpu_add_definition, &cpu_list); | |
8988 | g_slist_free(list); | |
8989 | ||
8990 | return cpu_list; | |
8991 | } | |
8992 | ||
1859f8c3 RH |
8993 | /* |
8994 | * Private utility function for define_one_arm_cp_reg_with_opaque(): | |
8995 | * add a single reginfo struct to the hash table. | |
8996 | */ | |
6e6efd61 | 8997 | static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r, |
cbe64585 RH |
8998 | void *opaque, CPState state, |
8999 | CPSecureState secstate, | |
9c513e78 AB |
9000 | int crm, int opc1, int opc2, |
9001 | const char *name) | |
6e6efd61 | 9002 | { |
696ba377 | 9003 | CPUARMState *env = &cpu->env; |
5860362d | 9004 | uint32_t key; |
c27f5d3a | 9005 | ARMCPRegInfo *r2; |
4c8c4541 RH |
9006 | bool is64 = r->type & ARM_CP_64BIT; |
9007 | bool ns = secstate & ARM_CP_SECSTATE_NS; | |
cac65299 | 9008 | int cp = r->cp; |
c27f5d3a | 9009 | size_t name_len; |
696ba377 | 9010 | bool make_const; |
c27f5d3a | 9011 | |
cac65299 RH |
9012 | switch (state) { |
9013 | case ARM_CP_STATE_AA32: | |
9014 | /* We assume it is a cp15 register if the .cp field is left unset. */ | |
9015 | if (cp == 0 && r->state == ARM_CP_STATE_BOTH) { | |
9016 | cp = 15; | |
9017 | } | |
9018 | key = ENCODE_CP_REG(cp, is64, ns, r->crn, crm, opc1, opc2); | |
9019 | break; | |
9020 | case ARM_CP_STATE_AA64: | |
9021 | /* | |
9022 | * To allow abbreviation of ARMCPRegInfo definitions, we treat | |
9023 | * cp == 0 as equivalent to the value for "standard guest-visible | |
9024 | * sysreg". STATE_BOTH definitions are also always "standard sysreg" | |
9025 | * in their AArch64 view (the .cp value may be non-zero for the | |
9026 | * benefit of the AArch32 view). | |
9027 | */ | |
9028 | if (cp == 0 || r->state == ARM_CP_STATE_BOTH) { | |
9029 | cp = CP_REG_ARM64_SYSREG_CP; | |
9030 | } | |
9031 | key = ENCODE_AA64_CP_REG(cp, r->crn, crm, r->opc0, opc1, opc2); | |
9032 | break; | |
9033 | default: | |
9034 | g_assert_not_reached(); | |
9035 | } | |
9036 | ||
dc44545b RH |
9037 | /* Overriding of an existing definition must be explicitly requested. */ |
9038 | if (!(r->type & ARM_CP_OVERRIDE)) { | |
9039 | const ARMCPRegInfo *oldreg = get_arm_cp_reginfo(cpu->cp_regs, key); | |
9040 | if (oldreg) { | |
9041 | assert(oldreg->type & ARM_CP_OVERRIDE); | |
9042 | } | |
9043 | } | |
9044 | ||
696ba377 RH |
9045 | /* |
9046 | * Eliminate registers that are not present because the EL is missing. | |
9047 | * Doing this here makes it easier to put all registers for a given | |
9048 | * feature into the same ARMCPRegInfo array and define them all at once. | |
9049 | */ | |
9050 | make_const = false; | |
9051 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
9052 | /* | |
9053 | * An EL2 register without EL2 but with EL3 is (usually) RES0. | |
9054 | * See rule RJFFP in section D1.1.3 of DDI0487H.a. | |
9055 | */ | |
9056 | int min_el = ctz32(r->access) / 2; | |
9057 | if (min_el == 2 && !arm_feature(env, ARM_FEATURE_EL2)) { | |
9058 | if (r->type & ARM_CP_EL3_NO_EL2_UNDEF) { | |
9059 | return; | |
9060 | } | |
9061 | make_const = !(r->type & ARM_CP_EL3_NO_EL2_KEEP); | |
9062 | } | |
9063 | } else { | |
9064 | CPAccessRights max_el = (arm_feature(env, ARM_FEATURE_EL2) | |
9065 | ? PL2_RW : PL1_RW); | |
9066 | if ((r->access & max_el) == 0) { | |
9067 | return; | |
9068 | } | |
9069 | } | |
9070 | ||
c27f5d3a RH |
9071 | /* Combine cpreg and name into one allocation. */ |
9072 | name_len = strlen(name) + 1; | |
9073 | r2 = g_malloc(sizeof(*r2) + name_len); | |
9074 | *r2 = *r; | |
9075 | r2->name = memcpy(r2 + 1, name, name_len); | |
3f3c82a5 | 9076 | |
cc946d96 RH |
9077 | /* |
9078 | * Update fields to match the instantiation, overwiting wildcards | |
9079 | * such as CP_ANY, ARM_CP_STATE_BOTH, or ARM_CP_SECSTATE_BOTH. | |
3f3c82a5 | 9080 | */ |
cc946d96 RH |
9081 | r2->cp = cp; |
9082 | r2->crm = crm; | |
9083 | r2->opc1 = opc1; | |
9084 | r2->opc2 = opc2; | |
9085 | r2->state = state; | |
3f3c82a5 | 9086 | r2->secure = secstate; |
cc946d96 RH |
9087 | if (opaque) { |
9088 | r2->opaque = opaque; | |
9089 | } | |
3f3c82a5 | 9090 | |
696ba377 RH |
9091 | if (make_const) { |
9092 | /* This should not have been a very special register to begin. */ | |
9093 | int old_special = r2->type & ARM_CP_SPECIAL_MASK; | |
9094 | assert(old_special == 0 || old_special == ARM_CP_NOP); | |
1859f8c3 | 9095 | /* |
696ba377 RH |
9096 | * Set the special function to CONST, retaining the other flags. |
9097 | * This is important for e.g. ARM_CP_SVE so that we still | |
9098 | * take the SVE trap if CPTR_EL3.EZ == 0. | |
f5a0a5a5 | 9099 | */ |
696ba377 RH |
9100 | r2->type = (r2->type & ~ARM_CP_SPECIAL_MASK) | ARM_CP_CONST; |
9101 | /* | |
9102 | * Usually, these registers become RES0, but there are a few | |
9103 | * special cases like VPIDR_EL2 which have a constant non-zero | |
9104 | * value with writes ignored. | |
9105 | */ | |
9106 | if (!(r->type & ARM_CP_EL3_NO_EL2_C_NZ)) { | |
9107 | r2->resetvalue = 0; | |
9108 | } | |
9109 | /* | |
9110 | * ARM_CP_CONST has precedence, so removing the callbacks and | |
9111 | * offsets are not strictly necessary, but it is potentially | |
9112 | * less confusing to debug later. | |
9113 | */ | |
9114 | r2->readfn = NULL; | |
9115 | r2->writefn = NULL; | |
9116 | r2->raw_readfn = NULL; | |
9117 | r2->raw_writefn = NULL; | |
9118 | r2->resetfn = NULL; | |
9119 | r2->fieldoffset = 0; | |
9120 | r2->bank_fieldoffsets[0] = 0; | |
9121 | r2->bank_fieldoffsets[1] = 0; | |
9122 | } else { | |
9123 | bool isbanked = r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1]; | |
3f3c82a5 | 9124 | |
10748a96 | 9125 | if (isbanked) { |
1859f8c3 | 9126 | /* |
696ba377 RH |
9127 | * Register is banked (using both entries in array). |
9128 | * Overwriting fieldoffset as the array is only used to define | |
9129 | * banked registers but later only fieldoffset is used. | |
3f3c82a5 | 9130 | */ |
696ba377 RH |
9131 | r2->fieldoffset = r->bank_fieldoffsets[ns]; |
9132 | } | |
9133 | if (state == ARM_CP_STATE_AA32) { | |
9134 | if (isbanked) { | |
9135 | /* | |
9136 | * If the register is banked then we don't need to migrate or | |
9137 | * reset the 32-bit instance in certain cases: | |
9138 | * | |
9139 | * 1) If the register has both 32-bit and 64-bit instances | |
9140 | * then we can count on the 64-bit instance taking care | |
9141 | * of the non-secure bank. | |
9142 | * 2) If ARMv8 is enabled then we can count on a 64-bit | |
9143 | * version taking care of the secure bank. This requires | |
9144 | * that separate 32 and 64-bit definitions are provided. | |
9145 | */ | |
9146 | if ((r->state == ARM_CP_STATE_BOTH && ns) || | |
9147 | (arm_feature(env, ARM_FEATURE_V8) && !ns)) { | |
9148 | r2->type |= ARM_CP_ALIAS; | |
9149 | } | |
9150 | } else if ((secstate != r->secure) && !ns) { | |
9151 | /* | |
9152 | * The register is not banked so we only want to allow | |
9153 | * migration of the non-secure instance. | |
9154 | */ | |
7a0e58fa | 9155 | r2->type |= ARM_CP_ALIAS; |
3f3c82a5 | 9156 | } |
3f3c82a5 | 9157 | |
696ba377 RH |
9158 | if (HOST_BIG_ENDIAN && |
9159 | r->state == ARM_CP_STATE_BOTH && r2->fieldoffset) { | |
9160 | r2->fieldoffset += sizeof(uint32_t); | |
9161 | } | |
3f3c82a5 | 9162 | } |
f5a0a5a5 | 9163 | } |
cc946d96 | 9164 | |
1859f8c3 RH |
9165 | /* |
9166 | * By convention, for wildcarded registers only the first | |
6e6efd61 | 9167 | * entry is used for migration; the others are marked as |
7a0e58fa | 9168 | * ALIAS so we don't try to transfer the register |
6e6efd61 | 9169 | * multiple times. Special registers (ie NOP/WFI) are |
7a0e58fa | 9170 | * never migratable and not even raw-accessible. |
6e6efd61 | 9171 | */ |
696ba377 | 9172 | if (r2->type & ARM_CP_SPECIAL_MASK) { |
7a0e58fa PM |
9173 | r2->type |= ARM_CP_NO_RAW; |
9174 | } | |
9175 | if (((r->crm == CP_ANY) && crm != 0) || | |
6e6efd61 PM |
9176 | ((r->opc1 == CP_ANY) && opc1 != 0) || |
9177 | ((r->opc2 == CP_ANY) && opc2 != 0)) { | |
1f163787 | 9178 | r2->type |= ARM_CP_ALIAS | ARM_CP_NO_GDB; |
6e6efd61 PM |
9179 | } |
9180 | ||
1859f8c3 RH |
9181 | /* |
9182 | * Check that raw accesses are either forbidden or handled. Note that | |
375421cc PM |
9183 | * we can't assert this earlier because the setup of fieldoffset for |
9184 | * banked registers has to be done first. | |
9185 | */ | |
9186 | if (!(r2->type & ARM_CP_NO_RAW)) { | |
9187 | assert(!raw_accessors_invalid(r2)); | |
9188 | } | |
9189 | ||
5860362d | 9190 | g_hash_table_insert(cpu->cp_regs, (gpointer)(uintptr_t)key, r2); |
6e6efd61 PM |
9191 | } |
9192 | ||
9193 | ||
4b6a83fb PM |
9194 | void define_one_arm_cp_reg_with_opaque(ARMCPU *cpu, |
9195 | const ARMCPRegInfo *r, void *opaque) | |
9196 | { | |
9b37a28c FR |
9197 | /* |
9198 | * Define implementations of coprocessor registers. | |
4b6a83fb PM |
9199 | * We store these in a hashtable because typically |
9200 | * there are less than 150 registers in a space which | |
9201 | * is 16*16*16*8*8 = 262144 in size. | |
9202 | * Wildcarding is supported for the crm, opc1 and opc2 fields. | |
9203 | * If a register is defined twice then the second definition is | |
9204 | * used, so this can be used to define some generic registers and | |
9205 | * then override them with implementation specific variations. | |
9206 | * At least one of the original and the second definition should | |
9207 | * include ARM_CP_OVERRIDE in its type bits -- this is just a guard | |
9208 | * against accidental use. | |
f5a0a5a5 PM |
9209 | * |
9210 | * The state field defines whether the register is to be | |
9211 | * visible in the AArch32 or AArch64 execution state. If the | |
9212 | * state is set to ARM_CP_STATE_BOTH then we synthesise a | |
9213 | * reginfo structure for the AArch32 view, which sees the lower | |
9214 | * 32 bits of the 64 bit register. | |
9215 | * | |
9216 | * Only registers visible in AArch64 may set r->opc0; opc0 cannot | |
9217 | * be wildcarded. AArch64 registers are always considered to be 64 | |
9218 | * bits; the ARM_CP_64BIT* flag applies only to the AArch32 view of | |
9219 | * the register, if any. | |
4b6a83fb | 9220 | */ |
d95101d6 | 9221 | int crm, opc1, opc2; |
4b6a83fb PM |
9222 | int crmmin = (r->crm == CP_ANY) ? 0 : r->crm; |
9223 | int crmmax = (r->crm == CP_ANY) ? 15 : r->crm; | |
9224 | int opc1min = (r->opc1 == CP_ANY) ? 0 : r->opc1; | |
9225 | int opc1max = (r->opc1 == CP_ANY) ? 7 : r->opc1; | |
9226 | int opc2min = (r->opc2 == CP_ANY) ? 0 : r->opc2; | |
9227 | int opc2max = (r->opc2 == CP_ANY) ? 7 : r->opc2; | |
d95101d6 RH |
9228 | CPState state; |
9229 | ||
4b6a83fb PM |
9230 | /* 64 bit registers have only CRm and Opc1 fields */ |
9231 | assert(!((r->type & ARM_CP_64BIT) && (r->opc2 || r->crn))); | |
f5a0a5a5 PM |
9232 | /* op0 only exists in the AArch64 encodings */ |
9233 | assert((r->state != ARM_CP_STATE_AA32) || (r->opc0 == 0)); | |
9234 | /* AArch64 regs are all 64 bit so ARM_CP_64BIT is meaningless */ | |
9235 | assert((r->state != ARM_CP_STATE_AA64) || !(r->type & ARM_CP_64BIT)); | |
cd8be50e PM |
9236 | /* |
9237 | * This API is only for Arm's system coprocessors (14 and 15) or | |
9238 | * (M-profile or v7A-and-earlier only) for implementation defined | |
9239 | * coprocessors in the range 0..7. Our decode assumes this, since | |
9240 | * 8..13 can be used for other insns including VFP and Neon. See | |
9241 | * valid_cp() in translate.c. Assert here that we haven't tried | |
9242 | * to use an invalid coprocessor number. | |
9243 | */ | |
9244 | switch (r->state) { | |
9245 | case ARM_CP_STATE_BOTH: | |
9246 | /* 0 has a special meaning, but otherwise the same rules as AA32. */ | |
9247 | if (r->cp == 0) { | |
9248 | break; | |
9249 | } | |
9250 | /* fall through */ | |
9251 | case ARM_CP_STATE_AA32: | |
9252 | if (arm_feature(&cpu->env, ARM_FEATURE_V8) && | |
9253 | !arm_feature(&cpu->env, ARM_FEATURE_M)) { | |
9254 | assert(r->cp >= 14 && r->cp <= 15); | |
9255 | } else { | |
9256 | assert(r->cp < 8 || (r->cp >= 14 && r->cp <= 15)); | |
9257 | } | |
9258 | break; | |
9259 | case ARM_CP_STATE_AA64: | |
9260 | assert(r->cp == 0 || r->cp == CP_REG_ARM64_SYSREG_CP); | |
9261 | break; | |
9262 | default: | |
9263 | g_assert_not_reached(); | |
9264 | } | |
9b37a28c FR |
9265 | /* |
9266 | * The AArch64 pseudocode CheckSystemAccess() specifies that op1 | |
f5a0a5a5 PM |
9267 | * encodes a minimum access level for the register. We roll this |
9268 | * runtime check into our general permission check code, so check | |
9269 | * here that the reginfo's specified permissions are strict enough | |
9270 | * to encompass the generic architectural permission check. | |
9271 | */ | |
9272 | if (r->state != ARM_CP_STATE_AA32) { | |
39107337 | 9273 | CPAccessRights mask; |
f5a0a5a5 | 9274 | switch (r->opc1) { |
b5bd7440 AB |
9275 | case 0: |
9276 | /* min_EL EL1, but some accessible to EL0 via kernel ABI */ | |
9277 | mask = PL0U_R | PL1_RW; | |
9278 | break; | |
9279 | case 1: case 2: | |
f5a0a5a5 PM |
9280 | /* min_EL EL1 */ |
9281 | mask = PL1_RW; | |
9282 | break; | |
9283 | case 3: | |
9284 | /* min_EL EL0 */ | |
9285 | mask = PL0_RW; | |
9286 | break; | |
9287 | case 4: | |
b4ecf60f | 9288 | case 5: |
f5a0a5a5 PM |
9289 | /* min_EL EL2 */ |
9290 | mask = PL2_RW; | |
9291 | break; | |
f5a0a5a5 PM |
9292 | case 6: |
9293 | /* min_EL EL3 */ | |
9294 | mask = PL3_RW; | |
9295 | break; | |
9296 | case 7: | |
9297 | /* min_EL EL1, secure mode only (we don't check the latter) */ | |
9298 | mask = PL1_RW; | |
9299 | break; | |
9300 | default: | |
9301 | /* broken reginfo with out-of-range opc1 */ | |
d385a605 | 9302 | g_assert_not_reached(); |
f5a0a5a5 PM |
9303 | } |
9304 | /* assert our permissions are not too lax (stricter is fine) */ | |
9305 | assert((r->access & ~mask) == 0); | |
9306 | } | |
9307 | ||
9b37a28c FR |
9308 | /* |
9309 | * Check that the register definition has enough info to handle | |
4b6a83fb PM |
9310 | * reads and writes if they are permitted. |
9311 | */ | |
87c3f0f2 | 9312 | if (!(r->type & (ARM_CP_SPECIAL_MASK | ARM_CP_CONST))) { |
4b6a83fb | 9313 | if (r->access & PL3_R) { |
3f3c82a5 FA |
9314 | assert((r->fieldoffset || |
9315 | (r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1])) || | |
9316 | r->readfn); | |
4b6a83fb PM |
9317 | } |
9318 | if (r->access & PL3_W) { | |
3f3c82a5 FA |
9319 | assert((r->fieldoffset || |
9320 | (r->bank_fieldoffsets[0] && r->bank_fieldoffsets[1])) || | |
9321 | r->writefn); | |
4b6a83fb PM |
9322 | } |
9323 | } | |
5809ac57 | 9324 | |
4b6a83fb PM |
9325 | for (crm = crmmin; crm <= crmmax; crm++) { |
9326 | for (opc1 = opc1min; opc1 <= opc1max; opc1++) { | |
9327 | for (opc2 = opc2min; opc2 <= opc2max; opc2++) { | |
f5a0a5a5 PM |
9328 | for (state = ARM_CP_STATE_AA32; |
9329 | state <= ARM_CP_STATE_AA64; state++) { | |
9330 | if (r->state != state && r->state != ARM_CP_STATE_BOTH) { | |
9331 | continue; | |
9332 | } | |
3f3c82a5 | 9333 | if (state == ARM_CP_STATE_AA32) { |
9b37a28c FR |
9334 | /* |
9335 | * Under AArch32 CP registers can be common | |
3f3c82a5 FA |
9336 | * (same for secure and non-secure world) or banked. |
9337 | */ | |
9c513e78 AB |
9338 | char *name; |
9339 | ||
3f3c82a5 FA |
9340 | switch (r->secure) { |
9341 | case ARM_CP_SECSTATE_S: | |
9342 | case ARM_CP_SECSTATE_NS: | |
9343 | add_cpreg_to_hashtable(cpu, r, opaque, state, | |
9c513e78 AB |
9344 | r->secure, crm, opc1, opc2, |
9345 | r->name); | |
3f3c82a5 | 9346 | break; |
cbe64585 | 9347 | case ARM_CP_SECSTATE_BOTH: |
9c513e78 | 9348 | name = g_strdup_printf("%s_S", r->name); |
3f3c82a5 FA |
9349 | add_cpreg_to_hashtable(cpu, r, opaque, state, |
9350 | ARM_CP_SECSTATE_S, | |
9c513e78 AB |
9351 | crm, opc1, opc2, name); |
9352 | g_free(name); | |
3f3c82a5 FA |
9353 | add_cpreg_to_hashtable(cpu, r, opaque, state, |
9354 | ARM_CP_SECSTATE_NS, | |
9c513e78 | 9355 | crm, opc1, opc2, r->name); |
3f3c82a5 | 9356 | break; |
cbe64585 RH |
9357 | default: |
9358 | g_assert_not_reached(); | |
3f3c82a5 FA |
9359 | } |
9360 | } else { | |
9b37a28c FR |
9361 | /* |
9362 | * AArch64 registers get mapped to non-secure instance | |
9363 | * of AArch32 | |
9364 | */ | |
3f3c82a5 FA |
9365 | add_cpreg_to_hashtable(cpu, r, opaque, state, |
9366 | ARM_CP_SECSTATE_NS, | |
9c513e78 | 9367 | crm, opc1, opc2, r->name); |
3f3c82a5 | 9368 | } |
f5a0a5a5 | 9369 | } |
4b6a83fb PM |
9370 | } |
9371 | } | |
9372 | } | |
9373 | } | |
9374 | ||
5809ac57 RH |
9375 | /* Define a whole list of registers */ |
9376 | void define_arm_cp_regs_with_opaque_len(ARMCPU *cpu, const ARMCPRegInfo *regs, | |
9377 | void *opaque, size_t len) | |
4b6a83fb | 9378 | { |
5809ac57 RH |
9379 | size_t i; |
9380 | for (i = 0; i < len; ++i) { | |
9381 | define_one_arm_cp_reg_with_opaque(cpu, regs + i, opaque); | |
4b6a83fb PM |
9382 | } |
9383 | } | |
9384 | ||
6c5c0fec AB |
9385 | /* |
9386 | * Modify ARMCPRegInfo for access from userspace. | |
9387 | * | |
9388 | * This is a data driven modification directed by | |
9389 | * ARMCPRegUserSpaceInfo. All registers become ARM_CP_CONST as | |
9390 | * user-space cannot alter any values and dynamic values pertaining to | |
9391 | * execution state are hidden from user space view anyway. | |
9392 | */ | |
5809ac57 RH |
9393 | void modify_arm_cp_regs_with_len(ARMCPRegInfo *regs, size_t regs_len, |
9394 | const ARMCPRegUserSpaceInfo *mods, | |
9395 | size_t mods_len) | |
6c5c0fec | 9396 | { |
5809ac57 RH |
9397 | for (size_t mi = 0; mi < mods_len; ++mi) { |
9398 | const ARMCPRegUserSpaceInfo *m = mods + mi; | |
d040242e | 9399 | GPatternSpec *pat = NULL; |
5809ac57 | 9400 | |
d040242e AB |
9401 | if (m->is_glob) { |
9402 | pat = g_pattern_spec_new(m->name); | |
9403 | } | |
5809ac57 RH |
9404 | for (size_t ri = 0; ri < regs_len; ++ri) { |
9405 | ARMCPRegInfo *r = regs + ri; | |
9406 | ||
d040242e AB |
9407 | if (pat && g_pattern_match_string(pat, r->name)) { |
9408 | r->type = ARM_CP_CONST; | |
9409 | r->access = PL0U_R; | |
9410 | r->resetvalue = 0; | |
9411 | /* continue */ | |
9412 | } else if (strcmp(r->name, m->name) == 0) { | |
6c5c0fec AB |
9413 | r->type = ARM_CP_CONST; |
9414 | r->access = PL0U_R; | |
9415 | r->resetvalue &= m->exported_bits; | |
9416 | r->resetvalue |= m->fixed_bits; | |
9417 | break; | |
9418 | } | |
9419 | } | |
d040242e AB |
9420 | if (pat) { |
9421 | g_pattern_spec_free(pat); | |
9422 | } | |
6c5c0fec AB |
9423 | } |
9424 | } | |
9425 | ||
60322b39 | 9426 | const ARMCPRegInfo *get_arm_cp_reginfo(GHashTable *cpregs, uint32_t encoded_cp) |
4b6a83fb | 9427 | { |
5860362d | 9428 | return g_hash_table_lookup(cpregs, (gpointer)(uintptr_t)encoded_cp); |
4b6a83fb PM |
9429 | } |
9430 | ||
c4241c7d PM |
9431 | void arm_cp_write_ignore(CPUARMState *env, const ARMCPRegInfo *ri, |
9432 | uint64_t value) | |
4b6a83fb PM |
9433 | { |
9434 | /* Helper coprocessor write function for write-ignore registers */ | |
4b6a83fb PM |
9435 | } |
9436 | ||
c4241c7d | 9437 | uint64_t arm_cp_read_zero(CPUARMState *env, const ARMCPRegInfo *ri) |
4b6a83fb PM |
9438 | { |
9439 | /* Helper coprocessor write function for read-as-zero registers */ | |
4b6a83fb PM |
9440 | return 0; |
9441 | } | |
9442 | ||
f5a0a5a5 PM |
9443 | void arm_cp_reset_ignore(CPUARMState *env, const ARMCPRegInfo *opaque) |
9444 | { | |
9445 | /* Helper coprocessor reset function for do-nothing-on-reset registers */ | |
9446 | } | |
9447 | ||
af393ffc | 9448 | static int bad_mode_switch(CPUARMState *env, int mode, CPSRWriteType write_type) |
37064a8b | 9449 | { |
9b37a28c FR |
9450 | /* |
9451 | * Return true if it is not valid for us to switch to | |
37064a8b PM |
9452 | * this CPU mode (ie all the UNPREDICTABLE cases in |
9453 | * the ARM ARM CPSRWriteByInstr pseudocode). | |
9454 | */ | |
af393ffc PM |
9455 | |
9456 | /* Changes to or from Hyp via MSR and CPS are illegal. */ | |
9457 | if (write_type == CPSRWriteByInstr && | |
9458 | ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_HYP || | |
9459 | mode == ARM_CPU_MODE_HYP)) { | |
9460 | return 1; | |
9461 | } | |
9462 | ||
37064a8b PM |
9463 | switch (mode) { |
9464 | case ARM_CPU_MODE_USR: | |
10eacda7 | 9465 | return 0; |
37064a8b PM |
9466 | case ARM_CPU_MODE_SYS: |
9467 | case ARM_CPU_MODE_SVC: | |
9468 | case ARM_CPU_MODE_ABT: | |
9469 | case ARM_CPU_MODE_UND: | |
9470 | case ARM_CPU_MODE_IRQ: | |
9471 | case ARM_CPU_MODE_FIQ: | |
9b37a28c FR |
9472 | /* |
9473 | * Note that we don't implement the IMPDEF NSACR.RFR which in v7 | |
52ff951b PM |
9474 | * allows FIQ mode to be Secure-only. (In v8 this doesn't exist.) |
9475 | */ | |
9b37a28c FR |
9476 | /* |
9477 | * If HCR.TGE is set then changes from Monitor to NS PL1 via MSR | |
10eacda7 PM |
9478 | * and CPS are treated as illegal mode changes. |
9479 | */ | |
9480 | if (write_type == CPSRWriteByInstr && | |
10eacda7 | 9481 | (env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_MON && |
7c208e0f | 9482 | (arm_hcr_el2_eff(env) & HCR_TGE)) { |
10eacda7 PM |
9483 | return 1; |
9484 | } | |
37064a8b | 9485 | return 0; |
e6c8fc07 | 9486 | case ARM_CPU_MODE_HYP: |
e6ef0169 | 9487 | return !arm_is_el2_enabled(env) || arm_current_el(env) < 2; |
027fc527 | 9488 | case ARM_CPU_MODE_MON: |
58ae2d1f | 9489 | return arm_current_el(env) < 3; |
37064a8b PM |
9490 | default: |
9491 | return 1; | |
9492 | } | |
9493 | } | |
9494 | ||
2f4a40e5 AZ |
9495 | uint32_t cpsr_read(CPUARMState *env) |
9496 | { | |
9497 | int ZF; | |
6fbe23d5 PB |
9498 | ZF = (env->ZF == 0); |
9499 | return env->uncached_cpsr | (env->NF & 0x80000000) | (ZF << 30) | | |
2f4a40e5 AZ |
9500 | (env->CF << 29) | ((env->VF & 0x80000000) >> 3) | (env->QF << 27) |
9501 | | (env->thumb << 5) | ((env->condexec_bits & 3) << 25) | |
9502 | | ((env->condexec_bits & 0xfc) << 8) | |
af519934 | 9503 | | (env->GE << 16) | (env->daif & CPSR_AIF); |
2f4a40e5 AZ |
9504 | } |
9505 | ||
50866ba5 PM |
9506 | void cpsr_write(CPUARMState *env, uint32_t val, uint32_t mask, |
9507 | CPSRWriteType write_type) | |
2f4a40e5 | 9508 | { |
6e8801f9 | 9509 | uint32_t changed_daif; |
e784807c PM |
9510 | bool rebuild_hflags = (write_type != CPSRWriteRaw) && |
9511 | (mask & (CPSR_M | CPSR_E | CPSR_IL)); | |
6e8801f9 | 9512 | |
2f4a40e5 | 9513 | if (mask & CPSR_NZCV) { |
6fbe23d5 PB |
9514 | env->ZF = (~val) & CPSR_Z; |
9515 | env->NF = val; | |
2f4a40e5 AZ |
9516 | env->CF = (val >> 29) & 1; |
9517 | env->VF = (val << 3) & 0x80000000; | |
9518 | } | |
f927dbda | 9519 | if (mask & CPSR_Q) { |
2f4a40e5 | 9520 | env->QF = ((val & CPSR_Q) != 0); |
f927dbda FR |
9521 | } |
9522 | if (mask & CPSR_T) { | |
2f4a40e5 | 9523 | env->thumb = ((val & CPSR_T) != 0); |
f927dbda | 9524 | } |
2f4a40e5 AZ |
9525 | if (mask & CPSR_IT_0_1) { |
9526 | env->condexec_bits &= ~3; | |
9527 | env->condexec_bits |= (val >> 25) & 3; | |
9528 | } | |
9529 | if (mask & CPSR_IT_2_7) { | |
9530 | env->condexec_bits &= 3; | |
9531 | env->condexec_bits |= (val >> 8) & 0xfc; | |
9532 | } | |
9533 | if (mask & CPSR_GE) { | |
9534 | env->GE = (val >> 16) & 0xf; | |
9535 | } | |
9536 | ||
9b37a28c FR |
9537 | /* |
9538 | * In a V7 implementation that includes the security extensions but does | |
6e8801f9 FA |
9539 | * not include Virtualization Extensions the SCR.FW and SCR.AW bits control |
9540 | * whether non-secure software is allowed to change the CPSR_F and CPSR_A | |
9541 | * bits respectively. | |
9542 | * | |
9543 | * In a V8 implementation, it is permitted for privileged software to | |
9544 | * change the CPSR A/F bits regardless of the SCR.AW/FW bits. | |
9545 | */ | |
f8c88bbc | 9546 | if (write_type != CPSRWriteRaw && !arm_feature(env, ARM_FEATURE_V8) && |
6e8801f9 FA |
9547 | arm_feature(env, ARM_FEATURE_EL3) && |
9548 | !arm_feature(env, ARM_FEATURE_EL2) && | |
9549 | !arm_is_secure(env)) { | |
9550 | ||
9551 | changed_daif = (env->daif ^ val) & mask; | |
9552 | ||
9553 | if (changed_daif & CPSR_A) { | |
9b37a28c FR |
9554 | /* |
9555 | * Check to see if we are allowed to change the masking of async | |
6e8801f9 FA |
9556 | * abort exceptions from a non-secure state. |
9557 | */ | |
9558 | if (!(env->cp15.scr_el3 & SCR_AW)) { | |
9559 | qemu_log_mask(LOG_GUEST_ERROR, | |
9560 | "Ignoring attempt to switch CPSR_A flag from " | |
9561 | "non-secure world with SCR.AW bit clear\n"); | |
9562 | mask &= ~CPSR_A; | |
9563 | } | |
9564 | } | |
9565 | ||
9566 | if (changed_daif & CPSR_F) { | |
9b37a28c FR |
9567 | /* |
9568 | * Check to see if we are allowed to change the masking of FIQ | |
6e8801f9 FA |
9569 | * exceptions from a non-secure state. |
9570 | */ | |
9571 | if (!(env->cp15.scr_el3 & SCR_FW)) { | |
9572 | qemu_log_mask(LOG_GUEST_ERROR, | |
9573 | "Ignoring attempt to switch CPSR_F flag from " | |
9574 | "non-secure world with SCR.FW bit clear\n"); | |
9575 | mask &= ~CPSR_F; | |
9576 | } | |
9577 | ||
9b37a28c FR |
9578 | /* |
9579 | * Check whether non-maskable FIQ (NMFI) support is enabled. | |
6e8801f9 FA |
9580 | * If this bit is set software is not allowed to mask |
9581 | * FIQs, but is allowed to set CPSR_F to 0. | |
9582 | */ | |
9583 | if ((A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_NMFI) && | |
9584 | (val & CPSR_F)) { | |
9585 | qemu_log_mask(LOG_GUEST_ERROR, | |
9586 | "Ignoring attempt to enable CPSR_F flag " | |
9587 | "(non-maskable FIQ [NMFI] support enabled)\n"); | |
9588 | mask &= ~CPSR_F; | |
9589 | } | |
9590 | } | |
9591 | } | |
9592 | ||
4cc35614 PM |
9593 | env->daif &= ~(CPSR_AIF & mask); |
9594 | env->daif |= val & CPSR_AIF & mask; | |
9595 | ||
f8c88bbc PM |
9596 | if (write_type != CPSRWriteRaw && |
9597 | ((env->uncached_cpsr ^ val) & mask & CPSR_M)) { | |
8c4f0eb9 | 9598 | if ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_USR) { |
9b37a28c FR |
9599 | /* |
9600 | * Note that we can only get here in USR mode if this is a | |
8c4f0eb9 PM |
9601 | * gdb stub write; for this case we follow the architectural |
9602 | * behaviour for guest writes in USR mode of ignoring an attempt | |
9603 | * to switch mode. (Those are caught by translate.c for writes | |
9604 | * triggered by guest instructions.) | |
9605 | */ | |
9606 | mask &= ~CPSR_M; | |
9607 | } else if (bad_mode_switch(env, val & CPSR_M, write_type)) { | |
9b37a28c FR |
9608 | /* |
9609 | * Attempt to switch to an invalid mode: this is UNPREDICTABLE in | |
81907a58 PM |
9610 | * v7, and has defined behaviour in v8: |
9611 | * + leave CPSR.M untouched | |
9612 | * + allow changes to the other CPSR fields | |
9613 | * + set PSTATE.IL | |
9614 | * For user changes via the GDB stub, we don't set PSTATE.IL, | |
9615 | * as this would be unnecessarily harsh for a user error. | |
37064a8b PM |
9616 | */ |
9617 | mask &= ~CPSR_M; | |
81907a58 PM |
9618 | if (write_type != CPSRWriteByGDBStub && |
9619 | arm_feature(env, ARM_FEATURE_V8)) { | |
9620 | mask |= CPSR_IL; | |
9621 | val |= CPSR_IL; | |
9622 | } | |
81e37284 PM |
9623 | qemu_log_mask(LOG_GUEST_ERROR, |
9624 | "Illegal AArch32 mode switch attempt from %s to %s\n", | |
9625 | aarch32_mode_name(env->uncached_cpsr), | |
9626 | aarch32_mode_name(val)); | |
37064a8b | 9627 | } else { |
81e37284 PM |
9628 | qemu_log_mask(CPU_LOG_INT, "%s %s to %s PC 0x%" PRIx32 "\n", |
9629 | write_type == CPSRWriteExceptionReturn ? | |
9630 | "Exception return from AArch32" : | |
9631 | "AArch32 mode switch from", | |
9632 | aarch32_mode_name(env->uncached_cpsr), | |
9633 | aarch32_mode_name(val), env->regs[15]); | |
37064a8b PM |
9634 | switch_mode(env, val & CPSR_M); |
9635 | } | |
2f4a40e5 AZ |
9636 | } |
9637 | mask &= ~CACHED_CPSR_BITS; | |
9638 | env->uncached_cpsr = (env->uncached_cpsr & ~mask) | (val & mask); | |
e784807c PM |
9639 | if (rebuild_hflags) { |
9640 | arm_rebuild_hflags(env); | |
9641 | } | |
2f4a40e5 AZ |
9642 | } |
9643 | ||
b26eefb6 PB |
9644 | /* Sign/zero extend */ |
9645 | uint32_t HELPER(sxtb16)(uint32_t x) | |
9646 | { | |
9647 | uint32_t res; | |
9648 | res = (uint16_t)(int8_t)x; | |
9649 | res |= (uint32_t)(int8_t)(x >> 16) << 16; | |
9650 | return res; | |
9651 | } | |
9652 | ||
e5346292 PM |
9653 | static void handle_possible_div0_trap(CPUARMState *env, uintptr_t ra) |
9654 | { | |
9655 | /* | |
9656 | * Take a division-by-zero exception if necessary; otherwise return | |
9657 | * to get the usual non-trapping division behaviour (result of 0) | |
9658 | */ | |
9659 | if (arm_feature(env, ARM_FEATURE_M) | |
9660 | && (env->v7m.ccr[env->v7m.secure] & R_V7M_CCR_DIV_0_TRP_MASK)) { | |
9661 | raise_exception_ra(env, EXCP_DIVBYZERO, 0, 1, ra); | |
9662 | } | |
9663 | } | |
9664 | ||
b26eefb6 PB |
9665 | uint32_t HELPER(uxtb16)(uint32_t x) |
9666 | { | |
9667 | uint32_t res; | |
9668 | res = (uint16_t)(uint8_t)x; | |
9669 | res |= (uint32_t)(uint8_t)(x >> 16) << 16; | |
9670 | return res; | |
9671 | } | |
9672 | ||
e5346292 | 9673 | int32_t HELPER(sdiv)(CPUARMState *env, int32_t num, int32_t den) |
3670669c | 9674 | { |
fc7a5038 | 9675 | if (den == 0) { |
e5346292 | 9676 | handle_possible_div0_trap(env, GETPC()); |
fc7a5038 PM |
9677 | return 0; |
9678 | } | |
9679 | if (num == INT_MIN && den == -1) { | |
9680 | return INT_MIN; | |
9681 | } | |
3670669c PB |
9682 | return num / den; |
9683 | } | |
9684 | ||
e5346292 | 9685 | uint32_t HELPER(udiv)(CPUARMState *env, uint32_t num, uint32_t den) |
3670669c | 9686 | { |
fc7a5038 | 9687 | if (den == 0) { |
e5346292 | 9688 | handle_possible_div0_trap(env, GETPC()); |
fc7a5038 PM |
9689 | return 0; |
9690 | } | |
3670669c PB |
9691 | return num / den; |
9692 | } | |
9693 | ||
9694 | uint32_t HELPER(rbit)(uint32_t x) | |
9695 | { | |
42fedbca | 9696 | return revbit32(x); |
3670669c PB |
9697 | } |
9698 | ||
c47eaf9f | 9699 | #ifdef CONFIG_USER_ONLY |
b5ff1b31 | 9700 | |
affdb64d | 9701 | static void switch_mode(CPUARMState *env, int mode) |
b5ff1b31 | 9702 | { |
2fc0cc0e | 9703 | ARMCPU *cpu = env_archcpu(env); |
a47dddd7 AF |
9704 | |
9705 | if (mode != ARM_CPU_MODE_USR) { | |
9706 | cpu_abort(CPU(cpu), "Tried to switch out of user mode\n"); | |
9707 | } | |
b5ff1b31 FB |
9708 | } |
9709 | ||
012a906b GB |
9710 | uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx, |
9711 | uint32_t cur_el, bool secure) | |
9e729b57 EI |
9712 | { |
9713 | return 1; | |
9714 | } | |
9715 | ||
ce02049d GB |
9716 | void aarch64_sync_64_to_32(CPUARMState *env) |
9717 | { | |
9718 | g_assert_not_reached(); | |
9719 | } | |
9720 | ||
b5ff1b31 FB |
9721 | #else |
9722 | ||
affdb64d | 9723 | static void switch_mode(CPUARMState *env, int mode) |
b5ff1b31 FB |
9724 | { |
9725 | int old_mode; | |
9726 | int i; | |
9727 | ||
9728 | old_mode = env->uncached_cpsr & CPSR_M; | |
f927dbda | 9729 | if (mode == old_mode) { |
b5ff1b31 | 9730 | return; |
f927dbda | 9731 | } |
b5ff1b31 FB |
9732 | |
9733 | if (old_mode == ARM_CPU_MODE_FIQ) { | |
04215eb1 FR |
9734 | memcpy(env->fiq_regs, env->regs + 8, 5 * sizeof(uint32_t)); |
9735 | memcpy(env->regs + 8, env->usr_regs, 5 * sizeof(uint32_t)); | |
b5ff1b31 | 9736 | } else if (mode == ARM_CPU_MODE_FIQ) { |
04215eb1 FR |
9737 | memcpy(env->usr_regs, env->regs + 8, 5 * sizeof(uint32_t)); |
9738 | memcpy(env->regs + 8, env->fiq_regs, 5 * sizeof(uint32_t)); | |
b5ff1b31 FB |
9739 | } |
9740 | ||
f5206413 | 9741 | i = bank_number(old_mode); |
b5ff1b31 | 9742 | env->banked_r13[i] = env->regs[13]; |
b5ff1b31 FB |
9743 | env->banked_spsr[i] = env->spsr; |
9744 | ||
f5206413 | 9745 | i = bank_number(mode); |
b5ff1b31 | 9746 | env->regs[13] = env->banked_r13[i]; |
b5ff1b31 | 9747 | env->spsr = env->banked_spsr[i]; |
593cfa2b PM |
9748 | |
9749 | env->banked_r14[r14_bank_number(old_mode)] = env->regs[14]; | |
9750 | env->regs[14] = env->banked_r14[r14_bank_number(mode)]; | |
b5ff1b31 FB |
9751 | } |
9752 | ||
9b37a28c FR |
9753 | /* |
9754 | * Physical Interrupt Target EL Lookup Table | |
0eeb17d6 GB |
9755 | * |
9756 | * [ From ARM ARM section G1.13.4 (Table G1-15) ] | |
9757 | * | |
9758 | * The below multi-dimensional table is used for looking up the target | |
9759 | * exception level given numerous condition criteria. Specifically, the | |
9760 | * target EL is based on SCR and HCR routing controls as well as the | |
9761 | * currently executing EL and secure state. | |
9762 | * | |
9763 | * Dimensions: | |
9764 | * target_el_table[2][2][2][2][2][4] | |
9765 | * | | | | | +--- Current EL | |
9766 | * | | | | +------ Non-secure(0)/Secure(1) | |
9767 | * | | | +--------- HCR mask override | |
9768 | * | | +------------ SCR exec state control | |
9769 | * | +--------------- SCR mask override | |
9770 | * +------------------ 32-bit(0)/64-bit(1) EL3 | |
9771 | * | |
9772 | * The table values are as such: | |
9773 | * 0-3 = EL0-EL3 | |
9774 | * -1 = Cannot occur | |
9775 | * | |
9776 | * The ARM ARM target EL table includes entries indicating that an "exception | |
9777 | * is not taken". The two cases where this is applicable are: | |
9778 | * 1) An exception is taken from EL3 but the SCR does not have the exception | |
9779 | * routed to EL3. | |
9780 | * 2) An exception is taken from EL2 but the HCR does not have the exception | |
9781 | * routed to EL2. | |
9782 | * In these two cases, the below table contain a target of EL1. This value is | |
9783 | * returned as it is expected that the consumer of the table data will check | |
9784 | * for "target EL >= current EL" to ensure the exception is not taken. | |
9785 | * | |
9786 | * SCR HCR | |
9787 | * 64 EA AMO From | |
9788 | * BIT IRQ IMO Non-secure Secure | |
9789 | * EL3 FIQ RW FMO EL0 EL1 EL2 EL3 EL0 EL1 EL2 EL3 | |
9790 | */ | |
82c39f6a | 9791 | static const int8_t target_el_table[2][2][2][2][2][4] = { |
0eeb17d6 GB |
9792 | {{{{/* 0 0 0 0 */{ 1, 1, 2, -1 },{ 3, -1, -1, 3 },}, |
9793 | {/* 0 0 0 1 */{ 2, 2, 2, -1 },{ 3, -1, -1, 3 },},}, | |
9794 | {{/* 0 0 1 0 */{ 1, 1, 2, -1 },{ 3, -1, -1, 3 },}, | |
9795 | {/* 0 0 1 1 */{ 2, 2, 2, -1 },{ 3, -1, -1, 3 },},},}, | |
9796 | {{{/* 0 1 0 0 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },}, | |
9797 | {/* 0 1 0 1 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},}, | |
9798 | {{/* 0 1 1 0 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },}, | |
9799 | {/* 0 1 1 1 */{ 3, 3, 3, -1 },{ 3, -1, -1, 3 },},},},}, | |
9800 | {{{{/* 1 0 0 0 */{ 1, 1, 2, -1 },{ 1, 1, -1, 1 },}, | |
6c85f906 RDC |
9801 | {/* 1 0 0 1 */{ 2, 2, 2, -1 },{ 2, 2, -1, 1 },},}, |
9802 | {{/* 1 0 1 0 */{ 1, 1, 1, -1 },{ 1, 1, 1, 1 },}, | |
9803 | {/* 1 0 1 1 */{ 2, 2, 2, -1 },{ 2, 2, 2, 1 },},},}, | |
0eeb17d6 GB |
9804 | {{{/* 1 1 0 0 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },}, |
9805 | {/* 1 1 0 1 */{ 3, 3, 3, -1 },{ 3, 3, -1, 3 },},}, | |
6c85f906 RDC |
9806 | {{/* 1 1 1 0 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },}, |
9807 | {/* 1 1 1 1 */{ 3, 3, 3, -1 },{ 3, 3, 3, 3 },},},},}, | |
0eeb17d6 GB |
9808 | }; |
9809 | ||
9810 | /* | |
9811 | * Determine the target EL for physical exceptions | |
9812 | */ | |
012a906b GB |
9813 | uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx, |
9814 | uint32_t cur_el, bool secure) | |
0eeb17d6 GB |
9815 | { |
9816 | CPUARMState *env = cs->env_ptr; | |
f7778444 RH |
9817 | bool rw; |
9818 | bool scr; | |
9819 | bool hcr; | |
0eeb17d6 | 9820 | int target_el; |
2cde031f | 9821 | /* Is the highest EL AArch64? */ |
f7778444 RH |
9822 | bool is64 = arm_feature(env, ARM_FEATURE_AARCH64); |
9823 | uint64_t hcr_el2; | |
2cde031f SS |
9824 | |
9825 | if (arm_feature(env, ARM_FEATURE_EL3)) { | |
9826 | rw = ((env->cp15.scr_el3 & SCR_RW) == SCR_RW); | |
9827 | } else { | |
9b37a28c FR |
9828 | /* |
9829 | * Either EL2 is the highest EL (and so the EL2 register width | |
2cde031f SS |
9830 | * is given by is64); or there is no EL2 or EL3, in which case |
9831 | * the value of 'rw' does not affect the table lookup anyway. | |
9832 | */ | |
9833 | rw = is64; | |
9834 | } | |
0eeb17d6 | 9835 | |
f7778444 | 9836 | hcr_el2 = arm_hcr_el2_eff(env); |
0eeb17d6 GB |
9837 | switch (excp_idx) { |
9838 | case EXCP_IRQ: | |
9839 | scr = ((env->cp15.scr_el3 & SCR_IRQ) == SCR_IRQ); | |
f7778444 | 9840 | hcr = hcr_el2 & HCR_IMO; |
0eeb17d6 GB |
9841 | break; |
9842 | case EXCP_FIQ: | |
9843 | scr = ((env->cp15.scr_el3 & SCR_FIQ) == SCR_FIQ); | |
f7778444 | 9844 | hcr = hcr_el2 & HCR_FMO; |
0eeb17d6 GB |
9845 | break; |
9846 | default: | |
9847 | scr = ((env->cp15.scr_el3 & SCR_EA) == SCR_EA); | |
f7778444 | 9848 | hcr = hcr_el2 & HCR_AMO; |
0eeb17d6 GB |
9849 | break; |
9850 | }; | |
9851 | ||
d1b31428 RH |
9852 | /* |
9853 | * For these purposes, TGE and AMO/IMO/FMO both force the | |
9854 | * interrupt to EL2. Fold TGE into the bit extracted above. | |
9855 | */ | |
9856 | hcr |= (hcr_el2 & HCR_TGE) != 0; | |
9857 | ||
0eeb17d6 GB |
9858 | /* Perform a table-lookup for the target EL given the current state */ |
9859 | target_el = target_el_table[is64][scr][rw][hcr][secure][cur_el]; | |
9860 | ||
9861 | assert(target_el > 0); | |
9862 | ||
9863 | return target_el; | |
9864 | } | |
9865 | ||
fc6177af | 9866 | void arm_log_exception(CPUState *cs) |
b59f479b | 9867 | { |
fc6177af PM |
9868 | int idx = cs->exception_index; |
9869 | ||
b59f479b PMD |
9870 | if (qemu_loglevel_mask(CPU_LOG_INT)) { |
9871 | const char *exc = NULL; | |
9872 | static const char * const excnames[] = { | |
9873 | [EXCP_UDEF] = "Undefined Instruction", | |
9874 | [EXCP_SWI] = "SVC", | |
9875 | [EXCP_PREFETCH_ABORT] = "Prefetch Abort", | |
9876 | [EXCP_DATA_ABORT] = "Data Abort", | |
9877 | [EXCP_IRQ] = "IRQ", | |
9878 | [EXCP_FIQ] = "FIQ", | |
9879 | [EXCP_BKPT] = "Breakpoint", | |
9880 | [EXCP_EXCEPTION_EXIT] = "QEMU v7M exception exit", | |
9881 | [EXCP_KERNEL_TRAP] = "QEMU intercept of kernel commpage", | |
9882 | [EXCP_HVC] = "Hypervisor Call", | |
9883 | [EXCP_HYP_TRAP] = "Hypervisor Trap", | |
9884 | [EXCP_SMC] = "Secure Monitor Call", | |
9885 | [EXCP_VIRQ] = "Virtual IRQ", | |
9886 | [EXCP_VFIQ] = "Virtual FIQ", | |
9887 | [EXCP_SEMIHOST] = "Semihosting call", | |
9888 | [EXCP_NOCP] = "v7M NOCP UsageFault", | |
9889 | [EXCP_INVSTATE] = "v7M INVSTATE UsageFault", | |
9890 | [EXCP_STKOF] = "v8M STKOF UsageFault", | |
9891 | [EXCP_LAZYFP] = "v7M exception during lazy FP stacking", | |
9892 | [EXCP_LSERR] = "v8M LSERR UsageFault", | |
9893 | [EXCP_UNALIGNED] = "v7M UNALIGNED UsageFault", | |
e5346292 | 9894 | [EXCP_DIVBYZERO] = "v7M DIVBYZERO UsageFault", |
3c29632f | 9895 | [EXCP_VSERR] = "Virtual SERR", |
b59f479b PMD |
9896 | }; |
9897 | ||
9898 | if (idx >= 0 && idx < ARRAY_SIZE(excnames)) { | |
9899 | exc = excnames[idx]; | |
9900 | } | |
9901 | if (!exc) { | |
9902 | exc = "unknown"; | |
9903 | } | |
fc6177af PM |
9904 | qemu_log_mask(CPU_LOG_INT, "Taking exception %d [%s] on CPU %d\n", |
9905 | idx, exc, cs->cpu_index); | |
b59f479b PMD |
9906 | } |
9907 | } | |
9908 | ||
a356dacf | 9909 | /* |
7aab5a8c PMD |
9910 | * Function used to synchronize QEMU's AArch64 register set with AArch32 |
9911 | * register set. This is necessary when switching between AArch32 and AArch64 | |
9912 | * execution state. | |
a356dacf | 9913 | */ |
7aab5a8c | 9914 | void aarch64_sync_32_to_64(CPUARMState *env) |
9ee6e8bb | 9915 | { |
7aab5a8c PMD |
9916 | int i; |
9917 | uint32_t mode = env->uncached_cpsr & CPSR_M; | |
9918 | ||
9919 | /* We can blanket copy R[0:7] to X[0:7] */ | |
9920 | for (i = 0; i < 8; i++) { | |
9921 | env->xregs[i] = env->regs[i]; | |
fd592d89 | 9922 | } |
70d74660 | 9923 | |
9a223097 | 9924 | /* |
7aab5a8c PMD |
9925 | * Unless we are in FIQ mode, x8-x12 come from the user registers r8-r12. |
9926 | * Otherwise, they come from the banked user regs. | |
fd592d89 | 9927 | */ |
7aab5a8c PMD |
9928 | if (mode == ARM_CPU_MODE_FIQ) { |
9929 | for (i = 8; i < 13; i++) { | |
9930 | env->xregs[i] = env->usr_regs[i - 8]; | |
9931 | } | |
9932 | } else { | |
9933 | for (i = 8; i < 13; i++) { | |
9934 | env->xregs[i] = env->regs[i]; | |
9935 | } | |
fd592d89 | 9936 | } |
9ee6e8bb | 9937 | |
7aab5a8c PMD |
9938 | /* |
9939 | * Registers x13-x23 are the various mode SP and FP registers. Registers | |
9940 | * r13 and r14 are only copied if we are in that mode, otherwise we copy | |
9941 | * from the mode banked register. | |
9942 | */ | |
9943 | if (mode == ARM_CPU_MODE_USR || mode == ARM_CPU_MODE_SYS) { | |
9944 | env->xregs[13] = env->regs[13]; | |
9945 | env->xregs[14] = env->regs[14]; | |
9946 | } else { | |
9947 | env->xregs[13] = env->banked_r13[bank_number(ARM_CPU_MODE_USR)]; | |
9948 | /* HYP is an exception in that it is copied from r14 */ | |
9949 | if (mode == ARM_CPU_MODE_HYP) { | |
9950 | env->xregs[14] = env->regs[14]; | |
95695eff | 9951 | } else { |
7aab5a8c | 9952 | env->xregs[14] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_USR)]; |
95695eff | 9953 | } |
95695eff PM |
9954 | } |
9955 | ||
7aab5a8c PMD |
9956 | if (mode == ARM_CPU_MODE_HYP) { |
9957 | env->xregs[15] = env->regs[13]; | |
9958 | } else { | |
9959 | env->xregs[15] = env->banked_r13[bank_number(ARM_CPU_MODE_HYP)]; | |
95695eff PM |
9960 | } |
9961 | ||
7aab5a8c PMD |
9962 | if (mode == ARM_CPU_MODE_IRQ) { |
9963 | env->xregs[16] = env->regs[14]; | |
9964 | env->xregs[17] = env->regs[13]; | |
9965 | } else { | |
9966 | env->xregs[16] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_IRQ)]; | |
9967 | env->xregs[17] = env->banked_r13[bank_number(ARM_CPU_MODE_IRQ)]; | |
9968 | } | |
95695eff | 9969 | |
7aab5a8c PMD |
9970 | if (mode == ARM_CPU_MODE_SVC) { |
9971 | env->xregs[18] = env->regs[14]; | |
9972 | env->xregs[19] = env->regs[13]; | |
9973 | } else { | |
9974 | env->xregs[18] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_SVC)]; | |
9975 | env->xregs[19] = env->banked_r13[bank_number(ARM_CPU_MODE_SVC)]; | |
9976 | } | |
95695eff | 9977 | |
7aab5a8c PMD |
9978 | if (mode == ARM_CPU_MODE_ABT) { |
9979 | env->xregs[20] = env->regs[14]; | |
9980 | env->xregs[21] = env->regs[13]; | |
9981 | } else { | |
9982 | env->xregs[20] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_ABT)]; | |
9983 | env->xregs[21] = env->banked_r13[bank_number(ARM_CPU_MODE_ABT)]; | |
9984 | } | |
e33cf0f8 | 9985 | |
7aab5a8c PMD |
9986 | if (mode == ARM_CPU_MODE_UND) { |
9987 | env->xregs[22] = env->regs[14]; | |
9988 | env->xregs[23] = env->regs[13]; | |
9989 | } else { | |
9990 | env->xregs[22] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_UND)]; | |
9991 | env->xregs[23] = env->banked_r13[bank_number(ARM_CPU_MODE_UND)]; | |
e33cf0f8 PM |
9992 | } |
9993 | ||
9994 | /* | |
7aab5a8c PMD |
9995 | * Registers x24-x30 are mapped to r8-r14 in FIQ mode. If we are in FIQ |
9996 | * mode, then we can copy from r8-r14. Otherwise, we copy from the | |
9997 | * FIQ bank for r8-r14. | |
e33cf0f8 | 9998 | */ |
7aab5a8c PMD |
9999 | if (mode == ARM_CPU_MODE_FIQ) { |
10000 | for (i = 24; i < 31; i++) { | |
10001 | env->xregs[i] = env->regs[i - 16]; /* X[24:30] <- R[8:14] */ | |
10002 | } | |
10003 | } else { | |
10004 | for (i = 24; i < 29; i++) { | |
10005 | env->xregs[i] = env->fiq_regs[i - 24]; | |
e33cf0f8 | 10006 | } |
7aab5a8c PMD |
10007 | env->xregs[29] = env->banked_r13[bank_number(ARM_CPU_MODE_FIQ)]; |
10008 | env->xregs[30] = env->banked_r14[r14_bank_number(ARM_CPU_MODE_FIQ)]; | |
e33cf0f8 | 10009 | } |
7aab5a8c PMD |
10010 | |
10011 | env->pc = env->regs[15]; | |
e33cf0f8 PM |
10012 | } |
10013 | ||
9a223097 | 10014 | /* |
7aab5a8c PMD |
10015 | * Function used to synchronize QEMU's AArch32 register set with AArch64 |
10016 | * register set. This is necessary when switching between AArch32 and AArch64 | |
10017 | * execution state. | |
de2db7ec | 10018 | */ |
7aab5a8c | 10019 | void aarch64_sync_64_to_32(CPUARMState *env) |
9ee6e8bb | 10020 | { |
7aab5a8c PMD |
10021 | int i; |
10022 | uint32_t mode = env->uncached_cpsr & CPSR_M; | |
abc24d86 | 10023 | |
7aab5a8c PMD |
10024 | /* We can blanket copy X[0:7] to R[0:7] */ |
10025 | for (i = 0; i < 8; i++) { | |
10026 | env->regs[i] = env->xregs[i]; | |
de2db7ec | 10027 | } |
3f0cddee | 10028 | |
9a223097 | 10029 | /* |
7aab5a8c PMD |
10030 | * Unless we are in FIQ mode, r8-r12 come from the user registers x8-x12. |
10031 | * Otherwise, we copy x8-x12 into the banked user regs. | |
de2db7ec | 10032 | */ |
7aab5a8c PMD |
10033 | if (mode == ARM_CPU_MODE_FIQ) { |
10034 | for (i = 8; i < 13; i++) { | |
10035 | env->usr_regs[i - 8] = env->xregs[i]; | |
10036 | } | |
10037 | } else { | |
10038 | for (i = 8; i < 13; i++) { | |
10039 | env->regs[i] = env->xregs[i]; | |
10040 | } | |
fb602cb7 PM |
10041 | } |
10042 | ||
9a223097 | 10043 | /* |
7aab5a8c PMD |
10044 | * Registers r13 & r14 depend on the current mode. |
10045 | * If we are in a given mode, we copy the corresponding x registers to r13 | |
10046 | * and r14. Otherwise, we copy the x register to the banked r13 and r14 | |
10047 | * for the mode. | |
fb602cb7 | 10048 | */ |
7aab5a8c PMD |
10049 | if (mode == ARM_CPU_MODE_USR || mode == ARM_CPU_MODE_SYS) { |
10050 | env->regs[13] = env->xregs[13]; | |
10051 | env->regs[14] = env->xregs[14]; | |
fb602cb7 | 10052 | } else { |
7aab5a8c | 10053 | env->banked_r13[bank_number(ARM_CPU_MODE_USR)] = env->xregs[13]; |
fb602cb7 | 10054 | |
7aab5a8c PMD |
10055 | /* |
10056 | * HYP is an exception in that it does not have its own banked r14 but | |
10057 | * shares the USR r14 | |
10058 | */ | |
10059 | if (mode == ARM_CPU_MODE_HYP) { | |
10060 | env->regs[14] = env->xregs[14]; | |
10061 | } else { | |
10062 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_USR)] = env->xregs[14]; | |
10063 | } | |
10064 | } | |
fb602cb7 | 10065 | |
7aab5a8c PMD |
10066 | if (mode == ARM_CPU_MODE_HYP) { |
10067 | env->regs[13] = env->xregs[15]; | |
fb602cb7 | 10068 | } else { |
7aab5a8c | 10069 | env->banked_r13[bank_number(ARM_CPU_MODE_HYP)] = env->xregs[15]; |
fb602cb7 | 10070 | } |
d02a8698 | 10071 | |
7aab5a8c PMD |
10072 | if (mode == ARM_CPU_MODE_IRQ) { |
10073 | env->regs[14] = env->xregs[16]; | |
10074 | env->regs[13] = env->xregs[17]; | |
d02a8698 | 10075 | } else { |
7aab5a8c PMD |
10076 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_IRQ)] = env->xregs[16]; |
10077 | env->banked_r13[bank_number(ARM_CPU_MODE_IRQ)] = env->xregs[17]; | |
d02a8698 PM |
10078 | } |
10079 | ||
7aab5a8c PMD |
10080 | if (mode == ARM_CPU_MODE_SVC) { |
10081 | env->regs[14] = env->xregs[18]; | |
10082 | env->regs[13] = env->xregs[19]; | |
10083 | } else { | |
10084 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_SVC)] = env->xregs[18]; | |
10085 | env->banked_r13[bank_number(ARM_CPU_MODE_SVC)] = env->xregs[19]; | |
fb602cb7 PM |
10086 | } |
10087 | ||
7aab5a8c PMD |
10088 | if (mode == ARM_CPU_MODE_ABT) { |
10089 | env->regs[14] = env->xregs[20]; | |
10090 | env->regs[13] = env->xregs[21]; | |
10091 | } else { | |
10092 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_ABT)] = env->xregs[20]; | |
10093 | env->banked_r13[bank_number(ARM_CPU_MODE_ABT)] = env->xregs[21]; | |
ce02049d GB |
10094 | } |
10095 | ||
10096 | if (mode == ARM_CPU_MODE_UND) { | |
3a9148d0 SS |
10097 | env->regs[14] = env->xregs[22]; |
10098 | env->regs[13] = env->xregs[23]; | |
ce02049d | 10099 | } else { |
593cfa2b | 10100 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_UND)] = env->xregs[22]; |
3a9148d0 | 10101 | env->banked_r13[bank_number(ARM_CPU_MODE_UND)] = env->xregs[23]; |
ce02049d GB |
10102 | } |
10103 | ||
9b37a28c FR |
10104 | /* |
10105 | * Registers x24-x30 are mapped to r8-r14 in FIQ mode. If we are in FIQ | |
ce02049d GB |
10106 | * mode, then we can copy to r8-r14. Otherwise, we copy to the |
10107 | * FIQ bank for r8-r14. | |
10108 | */ | |
10109 | if (mode == ARM_CPU_MODE_FIQ) { | |
10110 | for (i = 24; i < 31; i++) { | |
10111 | env->regs[i - 16] = env->xregs[i]; /* X[24:30] -> R[8:14] */ | |
10112 | } | |
10113 | } else { | |
10114 | for (i = 24; i < 29; i++) { | |
10115 | env->fiq_regs[i - 24] = env->xregs[i]; | |
10116 | } | |
10117 | env->banked_r13[bank_number(ARM_CPU_MODE_FIQ)] = env->xregs[29]; | |
593cfa2b | 10118 | env->banked_r14[r14_bank_number(ARM_CPU_MODE_FIQ)] = env->xregs[30]; |
ce02049d GB |
10119 | } |
10120 | ||
10121 | env->regs[15] = env->pc; | |
10122 | } | |
10123 | ||
dea8378b PM |
10124 | static void take_aarch32_exception(CPUARMState *env, int new_mode, |
10125 | uint32_t mask, uint32_t offset, | |
10126 | uint32_t newpc) | |
10127 | { | |
4a2696c0 RH |
10128 | int new_el; |
10129 | ||
dea8378b PM |
10130 | /* Change the CPU state so as to actually take the exception. */ |
10131 | switch_mode(env, new_mode); | |
4a2696c0 | 10132 | |
dea8378b PM |
10133 | /* |
10134 | * For exceptions taken to AArch32 we must clear the SS bit in both | |
10135 | * PSTATE and in the old-state value we save to SPSR_<mode>, so zero it now. | |
10136 | */ | |
f944a854 | 10137 | env->pstate &= ~PSTATE_SS; |
dea8378b PM |
10138 | env->spsr = cpsr_read(env); |
10139 | /* Clear IT bits. */ | |
10140 | env->condexec_bits = 0; | |
10141 | /* Switch to the new mode, and to the correct instruction set. */ | |
10142 | env->uncached_cpsr = (env->uncached_cpsr & ~CPSR_M) | new_mode; | |
88828bf1 CD |
10143 | |
10144 | /* This must be after mode switching. */ | |
10145 | new_el = arm_current_el(env); | |
10146 | ||
dea8378b PM |
10147 | /* Set new mode endianness */ |
10148 | env->uncached_cpsr &= ~CPSR_E; | |
4a2696c0 | 10149 | if (env->cp15.sctlr_el[new_el] & SCTLR_EE) { |
dea8378b PM |
10150 | env->uncached_cpsr |= CPSR_E; |
10151 | } | |
829f9fd3 PM |
10152 | /* J and IL must always be cleared for exception entry */ |
10153 | env->uncached_cpsr &= ~(CPSR_IL | CPSR_J); | |
dea8378b PM |
10154 | env->daif |= mask; |
10155 | ||
f2f68a78 RC |
10156 | if (cpu_isar_feature(aa32_ssbs, env_archcpu(env))) { |
10157 | if (env->cp15.sctlr_el[new_el] & SCTLR_DSSBS_32) { | |
10158 | env->uncached_cpsr |= CPSR_SSBS; | |
10159 | } else { | |
10160 | env->uncached_cpsr &= ~CPSR_SSBS; | |
10161 | } | |
10162 | } | |
10163 | ||
dea8378b PM |
10164 | if (new_mode == ARM_CPU_MODE_HYP) { |
10165 | env->thumb = (env->cp15.sctlr_el[2] & SCTLR_TE) != 0; | |
10166 | env->elr_el[2] = env->regs[15]; | |
10167 | } else { | |
4a2696c0 | 10168 | /* CPSR.PAN is normally preserved preserved unless... */ |
f8af1143 | 10169 | if (cpu_isar_feature(aa32_pan, env_archcpu(env))) { |
4a2696c0 RH |
10170 | switch (new_el) { |
10171 | case 3: | |
10172 | if (!arm_is_secure_below_el3(env)) { | |
10173 | /* ... the target is EL3, from non-secure state. */ | |
10174 | env->uncached_cpsr &= ~CPSR_PAN; | |
10175 | break; | |
10176 | } | |
10177 | /* ... the target is EL3, from secure state ... */ | |
10178 | /* fall through */ | |
10179 | case 1: | |
10180 | /* ... the target is EL1 and SCTLR.SPAN is 0. */ | |
10181 | if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPAN)) { | |
10182 | env->uncached_cpsr |= CPSR_PAN; | |
10183 | } | |
10184 | break; | |
10185 | } | |
10186 | } | |
dea8378b PM |
10187 | /* |
10188 | * this is a lie, as there was no c1_sys on V4T/V5, but who cares | |
10189 | * and we should just guard the thumb mode on V4 | |
10190 | */ | |
10191 | if (arm_feature(env, ARM_FEATURE_V4T)) { | |
10192 | env->thumb = | |
10193 | (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_TE) != 0; | |
10194 | } | |
10195 | env->regs[14] = env->regs[15] + offset; | |
10196 | } | |
10197 | env->regs[15] = newpc; | |
a8a79c7a | 10198 | arm_rebuild_hflags(env); |
dea8378b PM |
10199 | } |
10200 | ||
b9bc21ff PM |
10201 | static void arm_cpu_do_interrupt_aarch32_hyp(CPUState *cs) |
10202 | { | |
10203 | /* | |
10204 | * Handle exception entry to Hyp mode; this is sufficiently | |
10205 | * different to entry to other AArch32 modes that we handle it | |
10206 | * separately here. | |
10207 | * | |
10208 | * The vector table entry used is always the 0x14 Hyp mode entry point, | |
2c023d36 | 10209 | * unless this is an UNDEF/SVC/HVC/abort taken from Hyp to Hyp. |
b9bc21ff PM |
10210 | * The offset applied to the preferred return address is always zero |
10211 | * (see DDI0487C.a section G1.12.3). | |
10212 | * PSTATE A/I/F masks are set based only on the SCR.EA/IRQ/FIQ values. | |
10213 | */ | |
10214 | uint32_t addr, mask; | |
10215 | ARMCPU *cpu = ARM_CPU(cs); | |
10216 | CPUARMState *env = &cpu->env; | |
10217 | ||
10218 | switch (cs->exception_index) { | |
10219 | case EXCP_UDEF: | |
10220 | addr = 0x04; | |
10221 | break; | |
10222 | case EXCP_SWI: | |
2c023d36 | 10223 | addr = 0x08; |
b9bc21ff PM |
10224 | break; |
10225 | case EXCP_BKPT: | |
10226 | /* Fall through to prefetch abort. */ | |
10227 | case EXCP_PREFETCH_ABORT: | |
10228 | env->cp15.ifar_s = env->exception.vaddress; | |
10229 | qemu_log_mask(CPU_LOG_INT, "...with HIFAR 0x%x\n", | |
10230 | (uint32_t)env->exception.vaddress); | |
10231 | addr = 0x0c; | |
10232 | break; | |
10233 | case EXCP_DATA_ABORT: | |
10234 | env->cp15.dfar_s = env->exception.vaddress; | |
10235 | qemu_log_mask(CPU_LOG_INT, "...with HDFAR 0x%x\n", | |
10236 | (uint32_t)env->exception.vaddress); | |
10237 | addr = 0x10; | |
10238 | break; | |
10239 | case EXCP_IRQ: | |
10240 | addr = 0x18; | |
10241 | break; | |
10242 | case EXCP_FIQ: | |
10243 | addr = 0x1c; | |
10244 | break; | |
10245 | case EXCP_HVC: | |
10246 | addr = 0x08; | |
10247 | break; | |
10248 | case EXCP_HYP_TRAP: | |
10249 | addr = 0x14; | |
9bbb4ef9 | 10250 | break; |
b9bc21ff PM |
10251 | default: |
10252 | cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index); | |
10253 | } | |
10254 | ||
10255 | if (cs->exception_index != EXCP_IRQ && cs->exception_index != EXCP_FIQ) { | |
2ed08180 PM |
10256 | if (!arm_feature(env, ARM_FEATURE_V8)) { |
10257 | /* | |
10258 | * QEMU syndrome values are v8-style. v7 has the IL bit | |
10259 | * UNK/SBZP for "field not valid" cases, where v8 uses RES1. | |
10260 | * If this is a v7 CPU, squash the IL bit in those cases. | |
10261 | */ | |
10262 | if (cs->exception_index == EXCP_PREFETCH_ABORT || | |
10263 | (cs->exception_index == EXCP_DATA_ABORT && | |
10264 | !(env->exception.syndrome & ARM_EL_ISV)) || | |
10265 | syn_get_ec(env->exception.syndrome) == EC_UNCATEGORIZED) { | |
10266 | env->exception.syndrome &= ~ARM_EL_IL; | |
10267 | } | |
10268 | } | |
b9bc21ff PM |
10269 | env->cp15.esr_el[2] = env->exception.syndrome; |
10270 | } | |
10271 | ||
10272 | if (arm_current_el(env) != 2 && addr < 0x14) { | |
10273 | addr = 0x14; | |
10274 | } | |
10275 | ||
10276 | mask = 0; | |
10277 | if (!(env->cp15.scr_el3 & SCR_EA)) { | |
10278 | mask |= CPSR_A; | |
10279 | } | |
10280 | if (!(env->cp15.scr_el3 & SCR_IRQ)) { | |
10281 | mask |= CPSR_I; | |
10282 | } | |
10283 | if (!(env->cp15.scr_el3 & SCR_FIQ)) { | |
10284 | mask |= CPSR_F; | |
10285 | } | |
10286 | ||
10287 | addr += env->cp15.hvbar; | |
10288 | ||
10289 | take_aarch32_exception(env, ARM_CPU_MODE_HYP, mask, 0, addr); | |
10290 | } | |
10291 | ||
966f758c | 10292 | static void arm_cpu_do_interrupt_aarch32(CPUState *cs) |
b5ff1b31 | 10293 | { |
97a8ea5a AF |
10294 | ARMCPU *cpu = ARM_CPU(cs); |
10295 | CPUARMState *env = &cpu->env; | |
b5ff1b31 FB |
10296 | uint32_t addr; |
10297 | uint32_t mask; | |
10298 | int new_mode; | |
10299 | uint32_t offset; | |
16a906fd | 10300 | uint32_t moe; |
b5ff1b31 | 10301 | |
16a906fd | 10302 | /* If this is a debug exception we must update the DBGDSCR.MOE bits */ |
64b91e3f | 10303 | switch (syn_get_ec(env->exception.syndrome)) { |
16a906fd PM |
10304 | case EC_BREAKPOINT: |
10305 | case EC_BREAKPOINT_SAME_EL: | |
10306 | moe = 1; | |
10307 | break; | |
10308 | case EC_WATCHPOINT: | |
10309 | case EC_WATCHPOINT_SAME_EL: | |
10310 | moe = 10; | |
10311 | break; | |
10312 | case EC_AA32_BKPT: | |
10313 | moe = 3; | |
10314 | break; | |
10315 | case EC_VECTORCATCH: | |
10316 | moe = 5; | |
10317 | break; | |
10318 | default: | |
10319 | moe = 0; | |
10320 | break; | |
10321 | } | |
10322 | ||
10323 | if (moe) { | |
10324 | env->cp15.mdscr_el1 = deposit64(env->cp15.mdscr_el1, 2, 4, moe); | |
10325 | } | |
10326 | ||
b9bc21ff PM |
10327 | if (env->exception.target_el == 2) { |
10328 | arm_cpu_do_interrupt_aarch32_hyp(cs); | |
10329 | return; | |
10330 | } | |
10331 | ||
27103424 | 10332 | switch (cs->exception_index) { |
b5ff1b31 FB |
10333 | case EXCP_UDEF: |
10334 | new_mode = ARM_CPU_MODE_UND; | |
10335 | addr = 0x04; | |
10336 | mask = CPSR_I; | |
f927dbda | 10337 | if (env->thumb) { |
b5ff1b31 | 10338 | offset = 2; |
f927dbda | 10339 | } else { |
b5ff1b31 | 10340 | offset = 4; |
f927dbda | 10341 | } |
b5ff1b31 FB |
10342 | break; |
10343 | case EXCP_SWI: | |
10344 | new_mode = ARM_CPU_MODE_SVC; | |
10345 | addr = 0x08; | |
10346 | mask = CPSR_I; | |
601d70b9 | 10347 | /* The PC already points to the next instruction. */ |
b5ff1b31 FB |
10348 | offset = 0; |
10349 | break; | |
06c949e6 | 10350 | case EXCP_BKPT: |
9ee6e8bb PB |
10351 | /* Fall through to prefetch abort. */ |
10352 | case EXCP_PREFETCH_ABORT: | |
88ca1c2d | 10353 | A32_BANKED_CURRENT_REG_SET(env, ifsr, env->exception.fsr); |
b848ce2b | 10354 | A32_BANKED_CURRENT_REG_SET(env, ifar, env->exception.vaddress); |
3f1beaca | 10355 | qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x IFAR 0x%x\n", |
88ca1c2d | 10356 | env->exception.fsr, (uint32_t)env->exception.vaddress); |
b5ff1b31 FB |
10357 | new_mode = ARM_CPU_MODE_ABT; |
10358 | addr = 0x0c; | |
10359 | mask = CPSR_A | CPSR_I; | |
10360 | offset = 4; | |
10361 | break; | |
10362 | case EXCP_DATA_ABORT: | |
4a7e2d73 | 10363 | A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr); |
b848ce2b | 10364 | A32_BANKED_CURRENT_REG_SET(env, dfar, env->exception.vaddress); |
3f1beaca | 10365 | qemu_log_mask(CPU_LOG_INT, "...with DFSR 0x%x DFAR 0x%x\n", |
4a7e2d73 | 10366 | env->exception.fsr, |
6cd8a264 | 10367 | (uint32_t)env->exception.vaddress); |
b5ff1b31 FB |
10368 | new_mode = ARM_CPU_MODE_ABT; |
10369 | addr = 0x10; | |
10370 | mask = CPSR_A | CPSR_I; | |
10371 | offset = 8; | |
10372 | break; | |
10373 | case EXCP_IRQ: | |
10374 | new_mode = ARM_CPU_MODE_IRQ; | |
10375 | addr = 0x18; | |
10376 | /* Disable IRQ and imprecise data aborts. */ | |
10377 | mask = CPSR_A | CPSR_I; | |
10378 | offset = 4; | |
de38d23b FA |
10379 | if (env->cp15.scr_el3 & SCR_IRQ) { |
10380 | /* IRQ routed to monitor mode */ | |
10381 | new_mode = ARM_CPU_MODE_MON; | |
10382 | mask |= CPSR_F; | |
10383 | } | |
b5ff1b31 FB |
10384 | break; |
10385 | case EXCP_FIQ: | |
10386 | new_mode = ARM_CPU_MODE_FIQ; | |
10387 | addr = 0x1c; | |
10388 | /* Disable FIQ, IRQ and imprecise data aborts. */ | |
10389 | mask = CPSR_A | CPSR_I | CPSR_F; | |
de38d23b FA |
10390 | if (env->cp15.scr_el3 & SCR_FIQ) { |
10391 | /* FIQ routed to monitor mode */ | |
10392 | new_mode = ARM_CPU_MODE_MON; | |
10393 | } | |
b5ff1b31 FB |
10394 | offset = 4; |
10395 | break; | |
87a4b270 PM |
10396 | case EXCP_VIRQ: |
10397 | new_mode = ARM_CPU_MODE_IRQ; | |
10398 | addr = 0x18; | |
10399 | /* Disable IRQ and imprecise data aborts. */ | |
10400 | mask = CPSR_A | CPSR_I; | |
10401 | offset = 4; | |
10402 | break; | |
10403 | case EXCP_VFIQ: | |
10404 | new_mode = ARM_CPU_MODE_FIQ; | |
10405 | addr = 0x1c; | |
10406 | /* Disable FIQ, IRQ and imprecise data aborts. */ | |
10407 | mask = CPSR_A | CPSR_I | CPSR_F; | |
10408 | offset = 4; | |
10409 | break; | |
3c29632f RH |
10410 | case EXCP_VSERR: |
10411 | { | |
10412 | /* | |
10413 | * Note that this is reported as a data abort, but the DFAR | |
10414 | * has an UNKNOWN value. Construct the SError syndrome from | |
10415 | * AET and ExT fields. | |
10416 | */ | |
10417 | ARMMMUFaultInfo fi = { .type = ARMFault_AsyncExternal, }; | |
10418 | ||
10419 | if (extended_addresses_enabled(env)) { | |
10420 | env->exception.fsr = arm_fi_to_lfsc(&fi); | |
10421 | } else { | |
10422 | env->exception.fsr = arm_fi_to_sfsc(&fi); | |
10423 | } | |
10424 | env->exception.fsr |= env->cp15.vsesr_el2 & 0xd000; | |
10425 | A32_BANKED_CURRENT_REG_SET(env, dfsr, env->exception.fsr); | |
10426 | qemu_log_mask(CPU_LOG_INT, "...with IFSR 0x%x\n", | |
10427 | env->exception.fsr); | |
10428 | ||
10429 | new_mode = ARM_CPU_MODE_ABT; | |
10430 | addr = 0x10; | |
10431 | mask = CPSR_A | CPSR_I; | |
10432 | offset = 8; | |
10433 | } | |
10434 | break; | |
dbe9d163 FA |
10435 | case EXCP_SMC: |
10436 | new_mode = ARM_CPU_MODE_MON; | |
10437 | addr = 0x08; | |
10438 | mask = CPSR_A | CPSR_I | CPSR_F; | |
10439 | offset = 0; | |
10440 | break; | |
b5ff1b31 | 10441 | default: |
a47dddd7 | 10442 | cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index); |
b5ff1b31 FB |
10443 | return; /* Never happens. Keep compiler happy. */ |
10444 | } | |
e89e51a1 FA |
10445 | |
10446 | if (new_mode == ARM_CPU_MODE_MON) { | |
10447 | addr += env->cp15.mvbar; | |
137feaa9 | 10448 | } else if (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_V) { |
e89e51a1 | 10449 | /* High vectors. When enabled, base address cannot be remapped. */ |
b5ff1b31 | 10450 | addr += 0xffff0000; |
8641136c | 10451 | } else { |
9b37a28c FR |
10452 | /* |
10453 | * ARM v7 architectures provide a vector base address register to remap | |
8641136c | 10454 | * the interrupt vector table. |
e89e51a1 | 10455 | * This register is only followed in non-monitor mode, and is banked. |
8641136c NR |
10456 | * Note: only bits 31:5 are valid. |
10457 | */ | |
fb6c91ba | 10458 | addr += A32_BANKED_CURRENT_REG_GET(env, vbar); |
b5ff1b31 | 10459 | } |
dbe9d163 FA |
10460 | |
10461 | if ((env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_MON) { | |
10462 | env->cp15.scr_el3 &= ~SCR_NS; | |
10463 | } | |
10464 | ||
dea8378b | 10465 | take_aarch32_exception(env, new_mode, mask, offset, addr); |
b5ff1b31 FB |
10466 | } |
10467 | ||
a65dabf7 PM |
10468 | static int aarch64_regnum(CPUARMState *env, int aarch32_reg) |
10469 | { | |
10470 | /* | |
10471 | * Return the register number of the AArch64 view of the AArch32 | |
10472 | * register @aarch32_reg. The CPUARMState CPSR is assumed to still | |
10473 | * be that of the AArch32 mode the exception came from. | |
10474 | */ | |
10475 | int mode = env->uncached_cpsr & CPSR_M; | |
10476 | ||
10477 | switch (aarch32_reg) { | |
10478 | case 0 ... 7: | |
10479 | return aarch32_reg; | |
10480 | case 8 ... 12: | |
10481 | return mode == ARM_CPU_MODE_FIQ ? aarch32_reg + 16 : aarch32_reg; | |
10482 | case 13: | |
10483 | switch (mode) { | |
10484 | case ARM_CPU_MODE_USR: | |
10485 | case ARM_CPU_MODE_SYS: | |
10486 | return 13; | |
10487 | case ARM_CPU_MODE_HYP: | |
10488 | return 15; | |
10489 | case ARM_CPU_MODE_IRQ: | |
10490 | return 17; | |
10491 | case ARM_CPU_MODE_SVC: | |
10492 | return 19; | |
10493 | case ARM_CPU_MODE_ABT: | |
10494 | return 21; | |
10495 | case ARM_CPU_MODE_UND: | |
10496 | return 23; | |
10497 | case ARM_CPU_MODE_FIQ: | |
10498 | return 29; | |
10499 | default: | |
10500 | g_assert_not_reached(); | |
10501 | } | |
10502 | case 14: | |
10503 | switch (mode) { | |
10504 | case ARM_CPU_MODE_USR: | |
10505 | case ARM_CPU_MODE_SYS: | |
10506 | case ARM_CPU_MODE_HYP: | |
10507 | return 14; | |
10508 | case ARM_CPU_MODE_IRQ: | |
10509 | return 16; | |
10510 | case ARM_CPU_MODE_SVC: | |
10511 | return 18; | |
10512 | case ARM_CPU_MODE_ABT: | |
10513 | return 20; | |
10514 | case ARM_CPU_MODE_UND: | |
10515 | return 22; | |
10516 | case ARM_CPU_MODE_FIQ: | |
10517 | return 30; | |
10518 | default: | |
10519 | g_assert_not_reached(); | |
10520 | } | |
10521 | case 15: | |
10522 | return 31; | |
10523 | default: | |
10524 | g_assert_not_reached(); | |
10525 | } | |
10526 | } | |
10527 | ||
f944a854 RC |
10528 | static uint32_t cpsr_read_for_spsr_elx(CPUARMState *env) |
10529 | { | |
10530 | uint32_t ret = cpsr_read(env); | |
10531 | ||
10532 | /* Move DIT to the correct location for SPSR_ELx */ | |
10533 | if (ret & CPSR_DIT) { | |
10534 | ret &= ~CPSR_DIT; | |
10535 | ret |= PSTATE_DIT; | |
10536 | } | |
10537 | /* Merge PSTATE.SS into SPSR_ELx */ | |
10538 | ret |= env->pstate & PSTATE_SS; | |
10539 | ||
10540 | return ret; | |
10541 | } | |
10542 | ||
7ac61020 PM |
10543 | static bool syndrome_is_sync_extabt(uint32_t syndrome) |
10544 | { | |
10545 | /* Return true if this syndrome value is a synchronous external abort */ | |
10546 | switch (syn_get_ec(syndrome)) { | |
10547 | case EC_INSNABORT: | |
10548 | case EC_INSNABORT_SAME_EL: | |
10549 | case EC_DATAABORT: | |
10550 | case EC_DATAABORT_SAME_EL: | |
10551 | /* Look at fault status code for all the synchronous ext abort cases */ | |
10552 | switch (syndrome & 0x3f) { | |
10553 | case 0x10: | |
10554 | case 0x13: | |
10555 | case 0x14: | |
10556 | case 0x15: | |
10557 | case 0x16: | |
10558 | case 0x17: | |
10559 | return true; | |
10560 | default: | |
10561 | return false; | |
10562 | } | |
10563 | default: | |
10564 | return false; | |
10565 | } | |
10566 | } | |
10567 | ||
966f758c PM |
10568 | /* Handle exception entry to a target EL which is using AArch64 */ |
10569 | static void arm_cpu_do_interrupt_aarch64(CPUState *cs) | |
f3a9b694 PM |
10570 | { |
10571 | ARMCPU *cpu = ARM_CPU(cs); | |
10572 | CPUARMState *env = &cpu->env; | |
10573 | unsigned int new_el = env->exception.target_el; | |
10574 | target_ulong addr = env->cp15.vbar_el[new_el]; | |
10575 | unsigned int new_mode = aarch64_pstate_mode(new_el, true); | |
4a2696c0 | 10576 | unsigned int old_mode; |
0ab5953b | 10577 | unsigned int cur_el = arm_current_el(env); |
a65dabf7 | 10578 | int rt; |
0ab5953b | 10579 | |
9a05f7b6 RH |
10580 | /* |
10581 | * Note that new_el can never be 0. If cur_el is 0, then | |
10582 | * el0_a64 is is_a64(), else el0_a64 is ignored. | |
10583 | */ | |
10584 | aarch64_sve_change_el(env, cur_el, new_el, is_a64(env)); | |
f3a9b694 | 10585 | |
0ab5953b | 10586 | if (cur_el < new_el) { |
9b37a28c FR |
10587 | /* |
10588 | * Entry vector offset depends on whether the implemented EL | |
3d6f7617 PM |
10589 | * immediately lower than the target level is using AArch32 or AArch64 |
10590 | */ | |
10591 | bool is_aa64; | |
cb092fbb | 10592 | uint64_t hcr; |
3d6f7617 PM |
10593 | |
10594 | switch (new_el) { | |
10595 | case 3: | |
10596 | is_aa64 = (env->cp15.scr_el3 & SCR_RW) != 0; | |
10597 | break; | |
10598 | case 2: | |
cb092fbb RH |
10599 | hcr = arm_hcr_el2_eff(env); |
10600 | if ((hcr & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { | |
10601 | is_aa64 = (hcr & HCR_RW) != 0; | |
10602 | break; | |
10603 | } | |
10604 | /* fall through */ | |
3d6f7617 PM |
10605 | case 1: |
10606 | is_aa64 = is_a64(env); | |
10607 | break; | |
10608 | default: | |
10609 | g_assert_not_reached(); | |
10610 | } | |
10611 | ||
10612 | if (is_aa64) { | |
f3a9b694 PM |
10613 | addr += 0x400; |
10614 | } else { | |
10615 | addr += 0x600; | |
10616 | } | |
10617 | } else if (pstate_read(env) & PSTATE_SP) { | |
10618 | addr += 0x200; | |
10619 | } | |
10620 | ||
f3a9b694 PM |
10621 | switch (cs->exception_index) { |
10622 | case EXCP_PREFETCH_ABORT: | |
10623 | case EXCP_DATA_ABORT: | |
7ac61020 PM |
10624 | /* |
10625 | * FEAT_DoubleFault allows synchronous external aborts taken to EL3 | |
10626 | * to be taken to the SError vector entrypoint. | |
10627 | */ | |
10628 | if (new_el == 3 && (env->cp15.scr_el3 & SCR_EASE) && | |
10629 | syndrome_is_sync_extabt(env->exception.syndrome)) { | |
10630 | addr += 0x180; | |
10631 | } | |
f3a9b694 PM |
10632 | env->cp15.far_el[new_el] = env->exception.vaddress; |
10633 | qemu_log_mask(CPU_LOG_INT, "...with FAR 0x%" PRIx64 "\n", | |
10634 | env->cp15.far_el[new_el]); | |
10635 | /* fall through */ | |
10636 | case EXCP_BKPT: | |
10637 | case EXCP_UDEF: | |
10638 | case EXCP_SWI: | |
10639 | case EXCP_HVC: | |
10640 | case EXCP_HYP_TRAP: | |
10641 | case EXCP_SMC: | |
a65dabf7 PM |
10642 | switch (syn_get_ec(env->exception.syndrome)) { |
10643 | case EC_ADVSIMDFPACCESSTRAP: | |
4be42f40 PM |
10644 | /* |
10645 | * QEMU internal FP/SIMD syndromes from AArch32 include the | |
10646 | * TA and coproc fields which are only exposed if the exception | |
10647 | * is taken to AArch32 Hyp mode. Mask them out to get a valid | |
10648 | * AArch64 format syndrome. | |
10649 | */ | |
10650 | env->exception.syndrome &= ~MAKE_64BIT_MASK(0, 20); | |
a65dabf7 PM |
10651 | break; |
10652 | case EC_CP14RTTRAP: | |
10653 | case EC_CP15RTTRAP: | |
10654 | case EC_CP14DTTRAP: | |
10655 | /* | |
10656 | * For a trap on AArch32 MRC/MCR/LDC/STC the Rt field is currently | |
10657 | * the raw register field from the insn; when taking this to | |
10658 | * AArch64 we must convert it to the AArch64 view of the register | |
10659 | * number. Notice that we read a 4-bit AArch32 register number and | |
10660 | * write back a 5-bit AArch64 one. | |
10661 | */ | |
10662 | rt = extract32(env->exception.syndrome, 5, 4); | |
10663 | rt = aarch64_regnum(env, rt); | |
10664 | env->exception.syndrome = deposit32(env->exception.syndrome, | |
10665 | 5, 5, rt); | |
10666 | break; | |
10667 | case EC_CP15RRTTRAP: | |
10668 | case EC_CP14RRTTRAP: | |
10669 | /* Similarly for MRRC/MCRR traps for Rt and Rt2 fields */ | |
10670 | rt = extract32(env->exception.syndrome, 5, 4); | |
10671 | rt = aarch64_regnum(env, rt); | |
10672 | env->exception.syndrome = deposit32(env->exception.syndrome, | |
10673 | 5, 5, rt); | |
10674 | rt = extract32(env->exception.syndrome, 10, 4); | |
10675 | rt = aarch64_regnum(env, rt); | |
10676 | env->exception.syndrome = deposit32(env->exception.syndrome, | |
10677 | 10, 5, rt); | |
10678 | break; | |
4be42f40 | 10679 | } |
f3a9b694 PM |
10680 | env->cp15.esr_el[new_el] = env->exception.syndrome; |
10681 | break; | |
10682 | case EXCP_IRQ: | |
10683 | case EXCP_VIRQ: | |
10684 | addr += 0x80; | |
10685 | break; | |
10686 | case EXCP_FIQ: | |
10687 | case EXCP_VFIQ: | |
10688 | addr += 0x100; | |
10689 | break; | |
3c29632f RH |
10690 | case EXCP_VSERR: |
10691 | addr += 0x180; | |
10692 | /* Construct the SError syndrome from IDS and ISS fields. */ | |
10693 | env->exception.syndrome = syn_serror(env->cp15.vsesr_el2 & 0x1ffffff); | |
10694 | env->cp15.esr_el[new_el] = env->exception.syndrome; | |
10695 | break; | |
f3a9b694 PM |
10696 | default: |
10697 | cpu_abort(cs, "Unhandled exception 0x%x\n", cs->exception_index); | |
10698 | } | |
10699 | ||
10700 | if (is_a64(env)) { | |
4a2696c0 | 10701 | old_mode = pstate_read(env); |
f3a9b694 PM |
10702 | aarch64_save_sp(env, arm_current_el(env)); |
10703 | env->elr_el[new_el] = env->pc; | |
10704 | } else { | |
f944a854 | 10705 | old_mode = cpsr_read_for_spsr_elx(env); |
f3a9b694 PM |
10706 | env->elr_el[new_el] = env->regs[15]; |
10707 | ||
10708 | aarch64_sync_32_to_64(env); | |
10709 | ||
10710 | env->condexec_bits = 0; | |
10711 | } | |
4a2696c0 RH |
10712 | env->banked_spsr[aarch64_banked_spsr_index(new_el)] = old_mode; |
10713 | ||
f3a9b694 PM |
10714 | qemu_log_mask(CPU_LOG_INT, "...with ELR 0x%" PRIx64 "\n", |
10715 | env->elr_el[new_el]); | |
10716 | ||
4a2696c0 RH |
10717 | if (cpu_isar_feature(aa64_pan, cpu)) { |
10718 | /* The value of PSTATE.PAN is normally preserved, except when ... */ | |
10719 | new_mode |= old_mode & PSTATE_PAN; | |
10720 | switch (new_el) { | |
10721 | case 2: | |
10722 | /* ... the target is EL2 with HCR_EL2.{E2H,TGE} == '11' ... */ | |
10723 | if ((arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) | |
10724 | != (HCR_E2H | HCR_TGE)) { | |
10725 | break; | |
10726 | } | |
10727 | /* fall through */ | |
10728 | case 1: | |
10729 | /* ... the target is EL1 ... */ | |
10730 | /* ... and SCTLR_ELx.SPAN == 0, then set to 1. */ | |
10731 | if ((env->cp15.sctlr_el[new_el] & SCTLR_SPAN) == 0) { | |
10732 | new_mode |= PSTATE_PAN; | |
10733 | } | |
10734 | break; | |
10735 | } | |
10736 | } | |
34669338 RH |
10737 | if (cpu_isar_feature(aa64_mte, cpu)) { |
10738 | new_mode |= PSTATE_TCO; | |
10739 | } | |
4a2696c0 | 10740 | |
f2f68a78 RC |
10741 | if (cpu_isar_feature(aa64_ssbs, cpu)) { |
10742 | if (env->cp15.sctlr_el[new_el] & SCTLR_DSSBS_64) { | |
10743 | new_mode |= PSTATE_SSBS; | |
10744 | } else { | |
10745 | new_mode &= ~PSTATE_SSBS; | |
10746 | } | |
10747 | } | |
10748 | ||
f3a9b694 | 10749 | pstate_write(env, PSTATE_DAIF | new_mode); |
53221552 | 10750 | env->aarch64 = true; |
f3a9b694 | 10751 | aarch64_restore_sp(env, new_el); |
a8a79c7a | 10752 | helper_rebuild_hflags_a64(env, new_el); |
f3a9b694 PM |
10753 | |
10754 | env->pc = addr; | |
10755 | ||
10756 | qemu_log_mask(CPU_LOG_INT, "...to EL%d PC 0x%" PRIx64 " PSTATE 0x%x\n", | |
10757 | new_el, env->pc, pstate_read(env)); | |
966f758c PM |
10758 | } |
10759 | ||
ed6e6ba9 AB |
10760 | /* |
10761 | * Do semihosting call and set the appropriate return value. All the | |
10762 | * permission and validity checks have been done at translate time. | |
10763 | * | |
10764 | * We only see semihosting exceptions in TCG only as they are not | |
10765 | * trapped to the hypervisor in KVM. | |
10766 | */ | |
91f78c58 | 10767 | #ifdef CONFIG_TCG |
ed6e6ba9 AB |
10768 | static void handle_semihosting(CPUState *cs) |
10769 | { | |
904c04de PM |
10770 | ARMCPU *cpu = ARM_CPU(cs); |
10771 | CPUARMState *env = &cpu->env; | |
10772 | ||
10773 | if (is_a64(env)) { | |
ed6e6ba9 AB |
10774 | qemu_log_mask(CPU_LOG_INT, |
10775 | "...handling as semihosting call 0x%" PRIx64 "\n", | |
10776 | env->xregs[0]); | |
ed3a06b1 | 10777 | do_common_semihosting(cs); |
4ff5ef9e | 10778 | env->pc += 4; |
904c04de | 10779 | } else { |
904c04de PM |
10780 | qemu_log_mask(CPU_LOG_INT, |
10781 | "...handling as semihosting call 0x%x\n", | |
10782 | env->regs[0]); | |
ed3a06b1 | 10783 | do_common_semihosting(cs); |
4ff5ef9e | 10784 | env->regs[15] += env->thumb ? 2 : 4; |
904c04de PM |
10785 | } |
10786 | } | |
ed6e6ba9 | 10787 | #endif |
904c04de | 10788 | |
9b37a28c FR |
10789 | /* |
10790 | * Handle a CPU exception for A and R profile CPUs. | |
966f758c PM |
10791 | * Do any appropriate logging, handle PSCI calls, and then hand off |
10792 | * to the AArch64-entry or AArch32-entry function depending on the | |
10793 | * target exception level's register width. | |
853bfef4 CF |
10794 | * |
10795 | * Note: this is used for both TCG (as the do_interrupt tcg op), | |
10796 | * and KVM to re-inject guest debug exceptions, and to | |
10797 | * inject a Synchronous-External-Abort. | |
966f758c PM |
10798 | */ |
10799 | void arm_cpu_do_interrupt(CPUState *cs) | |
10800 | { | |
10801 | ARMCPU *cpu = ARM_CPU(cs); | |
10802 | CPUARMState *env = &cpu->env; | |
10803 | unsigned int new_el = env->exception.target_el; | |
10804 | ||
531c60a9 | 10805 | assert(!arm_feature(env, ARM_FEATURE_M)); |
966f758c | 10806 | |
fc6177af | 10807 | arm_log_exception(cs); |
966f758c PM |
10808 | qemu_log_mask(CPU_LOG_INT, "...from EL%d to EL%d\n", arm_current_el(env), |
10809 | new_el); | |
10810 | if (qemu_loglevel_mask(CPU_LOG_INT) | |
10811 | && !excp_is_internal(cs->exception_index)) { | |
6568da45 | 10812 | qemu_log_mask(CPU_LOG_INT, "...with ESR 0x%x/0x%" PRIx32 "\n", |
64b91e3f | 10813 | syn_get_ec(env->exception.syndrome), |
966f758c PM |
10814 | env->exception.syndrome); |
10815 | } | |
10816 | ||
10817 | if (arm_is_psci_call(cpu, cs->exception_index)) { | |
10818 | arm_handle_psci_call(cpu); | |
10819 | qemu_log_mask(CPU_LOG_INT, "...handled as PSCI call\n"); | |
10820 | return; | |
10821 | } | |
10822 | ||
ed6e6ba9 AB |
10823 | /* |
10824 | * Semihosting semantics depend on the register width of the code | |
10825 | * that caused the exception, not the target exception level, so | |
10826 | * must be handled here. | |
966f758c | 10827 | */ |
ed6e6ba9 AB |
10828 | #ifdef CONFIG_TCG |
10829 | if (cs->exception_index == EXCP_SEMIHOST) { | |
10830 | handle_semihosting(cs); | |
904c04de PM |
10831 | return; |
10832 | } | |
ed6e6ba9 | 10833 | #endif |
904c04de | 10834 | |
9b37a28c FR |
10835 | /* |
10836 | * Hooks may change global state so BQL should be held, also the | |
b5c53d1b AL |
10837 | * BQL needs to be held for any modification of |
10838 | * cs->interrupt_request. | |
10839 | */ | |
10840 | g_assert(qemu_mutex_iothread_locked()); | |
10841 | ||
10842 | arm_call_pre_el_change_hook(cpu); | |
10843 | ||
904c04de PM |
10844 | assert(!excp_is_internal(cs->exception_index)); |
10845 | if (arm_el_is_aa64(env, new_el)) { | |
966f758c PM |
10846 | arm_cpu_do_interrupt_aarch64(cs); |
10847 | } else { | |
10848 | arm_cpu_do_interrupt_aarch32(cs); | |
10849 | } | |
f3a9b694 | 10850 | |
bd7d00fc PM |
10851 | arm_call_el_change_hook(cpu); |
10852 | ||
f3a9b694 PM |
10853 | if (!kvm_enabled()) { |
10854 | cs->interrupt_request |= CPU_INTERRUPT_EXITTB; | |
10855 | } | |
10856 | } | |
c47eaf9f | 10857 | #endif /* !CONFIG_USER_ONLY */ |
0480f69a | 10858 | |
aaec1432 RH |
10859 | uint64_t arm_sctlr(CPUARMState *env, int el) |
10860 | { | |
10861 | /* Only EL0 needs to be adjusted for EL1&0 or EL2&0. */ | |
10862 | if (el == 0) { | |
10863 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, 0); | |
d902ae75 | 10864 | el = mmu_idx == ARMMMUIdx_E20_0 ? 2 : 1; |
aaec1432 RH |
10865 | } |
10866 | return env->cp15.sctlr_el[el]; | |
10867 | } | |
c47eaf9f | 10868 | |
8ae08860 | 10869 | int aa64_va_parameter_tbi(uint64_t tcr, ARMMMUIdx mmu_idx) |
b830a5ee RH |
10870 | { |
10871 | if (regime_has_2_ranges(mmu_idx)) { | |
10872 | return extract64(tcr, 37, 2); | |
edc05dd4 | 10873 | } else if (regime_is_stage2(mmu_idx)) { |
b830a5ee RH |
10874 | return 0; /* VTCR_EL2 */ |
10875 | } else { | |
3e270f67 RH |
10876 | /* Replicate the single TBI bit so we always have 2 bits. */ |
10877 | return extract32(tcr, 20, 1) * 3; | |
b830a5ee RH |
10878 | } |
10879 | } | |
10880 | ||
8ae08860 | 10881 | int aa64_va_parameter_tbid(uint64_t tcr, ARMMMUIdx mmu_idx) |
b830a5ee RH |
10882 | { |
10883 | if (regime_has_2_ranges(mmu_idx)) { | |
10884 | return extract64(tcr, 51, 2); | |
edc05dd4 | 10885 | } else if (regime_is_stage2(mmu_idx)) { |
b830a5ee RH |
10886 | return 0; /* VTCR_EL2 */ |
10887 | } else { | |
3e270f67 RH |
10888 | /* Replicate the single TBID bit so we always have 2 bits. */ |
10889 | return extract32(tcr, 29, 1) * 3; | |
b830a5ee RH |
10890 | } |
10891 | } | |
10892 | ||
81ae05fa RH |
10893 | static int aa64_va_parameter_tcma(uint64_t tcr, ARMMMUIdx mmu_idx) |
10894 | { | |
10895 | if (regime_has_2_ranges(mmu_idx)) { | |
10896 | return extract64(tcr, 57, 2); | |
10897 | } else { | |
10898 | /* Replicate the single TCMA bit so we always have 2 bits. */ | |
10899 | return extract32(tcr, 30, 1) * 3; | |
10900 | } | |
10901 | } | |
10902 | ||
104f703d PM |
10903 | static ARMGranuleSize tg0_to_gran_size(int tg) |
10904 | { | |
10905 | switch (tg) { | |
10906 | case 0: | |
10907 | return Gran4K; | |
10908 | case 1: | |
10909 | return Gran64K; | |
10910 | case 2: | |
10911 | return Gran16K; | |
10912 | default: | |
10913 | return GranInvalid; | |
10914 | } | |
10915 | } | |
10916 | ||
10917 | static ARMGranuleSize tg1_to_gran_size(int tg) | |
10918 | { | |
10919 | switch (tg) { | |
10920 | case 1: | |
10921 | return Gran16K; | |
10922 | case 2: | |
10923 | return Gran4K; | |
10924 | case 3: | |
10925 | return Gran64K; | |
10926 | default: | |
10927 | return GranInvalid; | |
10928 | } | |
10929 | } | |
10930 | ||
10931 | static inline bool have4k(ARMCPU *cpu, bool stage2) | |
10932 | { | |
10933 | return stage2 ? cpu_isar_feature(aa64_tgran4_2, cpu) | |
10934 | : cpu_isar_feature(aa64_tgran4, cpu); | |
10935 | } | |
10936 | ||
10937 | static inline bool have16k(ARMCPU *cpu, bool stage2) | |
10938 | { | |
10939 | return stage2 ? cpu_isar_feature(aa64_tgran16_2, cpu) | |
10940 | : cpu_isar_feature(aa64_tgran16, cpu); | |
10941 | } | |
10942 | ||
10943 | static inline bool have64k(ARMCPU *cpu, bool stage2) | |
10944 | { | |
10945 | return stage2 ? cpu_isar_feature(aa64_tgran64_2, cpu) | |
10946 | : cpu_isar_feature(aa64_tgran64, cpu); | |
10947 | } | |
10948 | ||
10949 | static ARMGranuleSize sanitize_gran_size(ARMCPU *cpu, ARMGranuleSize gran, | |
10950 | bool stage2) | |
10951 | { | |
10952 | switch (gran) { | |
10953 | case Gran4K: | |
10954 | if (have4k(cpu, stage2)) { | |
10955 | return gran; | |
10956 | } | |
10957 | break; | |
10958 | case Gran16K: | |
10959 | if (have16k(cpu, stage2)) { | |
10960 | return gran; | |
10961 | } | |
10962 | break; | |
10963 | case Gran64K: | |
10964 | if (have64k(cpu, stage2)) { | |
10965 | return gran; | |
10966 | } | |
10967 | break; | |
10968 | case GranInvalid: | |
10969 | break; | |
10970 | } | |
10971 | /* | |
10972 | * If the guest selects a granule size that isn't implemented, | |
10973 | * the architecture requires that we behave as if it selected one | |
10974 | * that is (with an IMPDEF choice of which one to pick). We choose | |
10975 | * to implement the smallest supported granule size. | |
10976 | */ | |
10977 | if (have4k(cpu, stage2)) { | |
10978 | return Gran4K; | |
10979 | } | |
10980 | if (have16k(cpu, stage2)) { | |
10981 | return Gran16K; | |
10982 | } | |
10983 | assert(have64k(cpu, stage2)); | |
10984 | return Gran64K; | |
10985 | } | |
10986 | ||
b830a5ee RH |
10987 | ARMVAParameters aa64_va_parameters(CPUARMState *env, uint64_t va, |
10988 | ARMMMUIdx mmu_idx, bool data) | |
ba97be9f | 10989 | { |
c1547bba | 10990 | uint64_t tcr = regime_tcr(env, mmu_idx); |
89739227 | 10991 | bool epd, hpd, tsz_oob, ds, ha, hd; |
ef56c242 | 10992 | int select, tsz, tbi, max_tsz, min_tsz, ps, sh; |
104f703d | 10993 | ARMGranuleSize gran; |
ef56c242 | 10994 | ARMCPU *cpu = env_archcpu(env); |
edc05dd4 | 10995 | bool stage2 = regime_is_stage2(mmu_idx); |
ba97be9f | 10996 | |
339370b9 | 10997 | if (!regime_has_2_ranges(mmu_idx)) { |
71d18164 | 10998 | select = 0; |
ba97be9f | 10999 | tsz = extract32(tcr, 0, 6); |
104f703d PM |
11000 | gran = tg0_to_gran_size(extract32(tcr, 14, 2)); |
11001 | if (stage2) { | |
ba97be9f | 11002 | /* VTCR_EL2 */ |
b830a5ee | 11003 | hpd = false; |
ba97be9f | 11004 | } else { |
ba97be9f RH |
11005 | hpd = extract32(tcr, 24, 1); |
11006 | } | |
11007 | epd = false; | |
ef56c242 | 11008 | sh = extract32(tcr, 12, 2); |
f4ecc015 | 11009 | ps = extract32(tcr, 16, 3); |
89739227 RH |
11010 | ha = extract32(tcr, 21, 1) && cpu_isar_feature(aa64_hafs, cpu); |
11011 | hd = extract32(tcr, 22, 1) && cpu_isar_feature(aa64_hdbs, cpu); | |
ef56c242 | 11012 | ds = extract64(tcr, 32, 1); |
ba97be9f | 11013 | } else { |
e4c93e44 PM |
11014 | bool e0pd; |
11015 | ||
71d18164 RH |
11016 | /* |
11017 | * Bit 55 is always between the two regions, and is canonical for | |
11018 | * determining if address tagging is enabled. | |
11019 | */ | |
11020 | select = extract64(va, 55, 1); | |
11021 | if (!select) { | |
11022 | tsz = extract32(tcr, 0, 6); | |
104f703d | 11023 | gran = tg0_to_gran_size(extract32(tcr, 14, 2)); |
71d18164 | 11024 | epd = extract32(tcr, 7, 1); |
ef56c242 | 11025 | sh = extract32(tcr, 12, 2); |
71d18164 | 11026 | hpd = extract64(tcr, 41, 1); |
e4c93e44 | 11027 | e0pd = extract64(tcr, 55, 1); |
71d18164 | 11028 | } else { |
71d18164 | 11029 | tsz = extract32(tcr, 16, 6); |
104f703d | 11030 | gran = tg1_to_gran_size(extract32(tcr, 30, 2)); |
71d18164 | 11031 | epd = extract32(tcr, 23, 1); |
ef56c242 | 11032 | sh = extract32(tcr, 28, 2); |
71d18164 | 11033 | hpd = extract64(tcr, 42, 1); |
e4c93e44 | 11034 | e0pd = extract64(tcr, 56, 1); |
71d18164 | 11035 | } |
f4ecc015 | 11036 | ps = extract64(tcr, 32, 3); |
89739227 RH |
11037 | ha = extract64(tcr, 39, 1) && cpu_isar_feature(aa64_hafs, cpu); |
11038 | hd = extract64(tcr, 40, 1) && cpu_isar_feature(aa64_hdbs, cpu); | |
ef56c242 | 11039 | ds = extract64(tcr, 59, 1); |
e4c93e44 PM |
11040 | |
11041 | if (e0pd && cpu_isar_feature(aa64_e0pd, cpu) && | |
11042 | regime_is_user(env, mmu_idx)) { | |
11043 | epd = true; | |
11044 | } | |
ba97be9f | 11045 | } |
c36c65ea | 11046 | |
104f703d | 11047 | gran = sanitize_gran_size(cpu, gran, stage2); |
104f703d | 11048 | |
ef56c242 | 11049 | if (cpu_isar_feature(aa64_st, cpu)) { |
3c003f70 | 11050 | max_tsz = 48 - (gran == Gran64K); |
c36c65ea RDC |
11051 | } else { |
11052 | max_tsz = 39; | |
11053 | } | |
0af312b6 | 11054 | |
ef56c242 RH |
11055 | /* |
11056 | * DS is RES0 unless FEAT_LPA2 is supported for the given page size; | |
11057 | * adjust the effective value of DS, as documented. | |
11058 | */ | |
0af312b6 | 11059 | min_tsz = 16; |
3c003f70 | 11060 | if (gran == Gran64K) { |
ef56c242 RH |
11061 | if (cpu_isar_feature(aa64_lva, cpu)) { |
11062 | min_tsz = 12; | |
11063 | } | |
11064 | ds = false; | |
11065 | } else if (ds) { | |
edc05dd4 | 11066 | if (regime_is_stage2(mmu_idx)) { |
3c003f70 | 11067 | if (gran == Gran16K) { |
ef56c242 RH |
11068 | ds = cpu_isar_feature(aa64_tgran16_2_lpa2, cpu); |
11069 | } else { | |
11070 | ds = cpu_isar_feature(aa64_tgran4_2_lpa2, cpu); | |
11071 | } | |
edc05dd4 | 11072 | } else { |
3c003f70 | 11073 | if (gran == Gran16K) { |
ef56c242 RH |
11074 | ds = cpu_isar_feature(aa64_tgran16_lpa2, cpu); |
11075 | } else { | |
11076 | ds = cpu_isar_feature(aa64_tgran4_lpa2, cpu); | |
11077 | } | |
ef56c242 RH |
11078 | } |
11079 | if (ds) { | |
0af312b6 RH |
11080 | min_tsz = 12; |
11081 | } | |
11082 | } | |
c36c65ea | 11083 | |
ebf93ce7 RH |
11084 | if (tsz > max_tsz) { |
11085 | tsz = max_tsz; | |
11086 | tsz_oob = true; | |
11087 | } else if (tsz < min_tsz) { | |
11088 | tsz = min_tsz; | |
11089 | tsz_oob = true; | |
11090 | } else { | |
11091 | tsz_oob = false; | |
11092 | } | |
ba97be9f | 11093 | |
b830a5ee RH |
11094 | /* Present TBI as a composite with TBID. */ |
11095 | tbi = aa64_va_parameter_tbi(tcr, mmu_idx); | |
11096 | if (!data) { | |
11097 | tbi &= ~aa64_va_parameter_tbid(tcr, mmu_idx); | |
11098 | } | |
11099 | tbi = (tbi >> select) & 1; | |
11100 | ||
ba97be9f RH |
11101 | return (ARMVAParameters) { |
11102 | .tsz = tsz, | |
f4ecc015 | 11103 | .ps = ps, |
ef56c242 | 11104 | .sh = sh, |
ba97be9f RH |
11105 | .select = select, |
11106 | .tbi = tbi, | |
11107 | .epd = epd, | |
11108 | .hpd = hpd, | |
ebf93ce7 | 11109 | .tsz_oob = tsz_oob, |
ef56c242 | 11110 | .ds = ds, |
89739227 RH |
11111 | .ha = ha, |
11112 | .hd = ha && hd, | |
3c003f70 | 11113 | .gran = gran, |
ba97be9f RH |
11114 | }; |
11115 | } | |
11116 | ||
9b37a28c FR |
11117 | /* |
11118 | * Note that signed overflow is undefined in C. The following routines are | |
11119 | * careful to use unsigned types where modulo arithmetic is required. | |
11120 | * Failure to do so _will_ break on newer gcc. | |
11121 | */ | |
6ddbc6e4 PB |
11122 | |
11123 | /* Signed saturating arithmetic. */ | |
11124 | ||
1654b2d6 | 11125 | /* Perform 16-bit signed saturating addition. */ |
6ddbc6e4 PB |
11126 | static inline uint16_t add16_sat(uint16_t a, uint16_t b) |
11127 | { | |
11128 | uint16_t res; | |
11129 | ||
11130 | res = a + b; | |
11131 | if (((res ^ a) & 0x8000) && !((a ^ b) & 0x8000)) { | |
f927dbda | 11132 | if (a & 0x8000) { |
6ddbc6e4 | 11133 | res = 0x8000; |
f927dbda | 11134 | } else { |
6ddbc6e4 | 11135 | res = 0x7fff; |
f927dbda | 11136 | } |
6ddbc6e4 PB |
11137 | } |
11138 | return res; | |
11139 | } | |
11140 | ||
1654b2d6 | 11141 | /* Perform 8-bit signed saturating addition. */ |
6ddbc6e4 PB |
11142 | static inline uint8_t add8_sat(uint8_t a, uint8_t b) |
11143 | { | |
11144 | uint8_t res; | |
11145 | ||
11146 | res = a + b; | |
11147 | if (((res ^ a) & 0x80) && !((a ^ b) & 0x80)) { | |
f927dbda | 11148 | if (a & 0x80) { |
6ddbc6e4 | 11149 | res = 0x80; |
f927dbda | 11150 | } else { |
6ddbc6e4 | 11151 | res = 0x7f; |
f927dbda | 11152 | } |
6ddbc6e4 PB |
11153 | } |
11154 | return res; | |
11155 | } | |
11156 | ||
1654b2d6 | 11157 | /* Perform 16-bit signed saturating subtraction. */ |
6ddbc6e4 PB |
11158 | static inline uint16_t sub16_sat(uint16_t a, uint16_t b) |
11159 | { | |
11160 | uint16_t res; | |
11161 | ||
11162 | res = a - b; | |
11163 | if (((res ^ a) & 0x8000) && ((a ^ b) & 0x8000)) { | |
f927dbda | 11164 | if (a & 0x8000) { |
6ddbc6e4 | 11165 | res = 0x8000; |
f927dbda | 11166 | } else { |
6ddbc6e4 | 11167 | res = 0x7fff; |
f927dbda | 11168 | } |
6ddbc6e4 PB |
11169 | } |
11170 | return res; | |
11171 | } | |
11172 | ||
1654b2d6 | 11173 | /* Perform 8-bit signed saturating subtraction. */ |
6ddbc6e4 PB |
11174 | static inline uint8_t sub8_sat(uint8_t a, uint8_t b) |
11175 | { | |
11176 | uint8_t res; | |
11177 | ||
11178 | res = a - b; | |
11179 | if (((res ^ a) & 0x80) && ((a ^ b) & 0x80)) { | |
f927dbda | 11180 | if (a & 0x80) { |
6ddbc6e4 | 11181 | res = 0x80; |
f927dbda | 11182 | } else { |
6ddbc6e4 | 11183 | res = 0x7f; |
f927dbda | 11184 | } |
6ddbc6e4 PB |
11185 | } |
11186 | return res; | |
11187 | } | |
11188 | ||
11189 | #define ADD16(a, b, n) RESULT(add16_sat(a, b), n, 16); | |
11190 | #define SUB16(a, b, n) RESULT(sub16_sat(a, b), n, 16); | |
11191 | #define ADD8(a, b, n) RESULT(add8_sat(a, b), n, 8); | |
11192 | #define SUB8(a, b, n) RESULT(sub8_sat(a, b), n, 8); | |
11193 | #define PFX q | |
11194 | ||
11195 | #include "op_addsub.h" | |
11196 | ||
11197 | /* Unsigned saturating arithmetic. */ | |
460a09c1 | 11198 | static inline uint16_t add16_usat(uint16_t a, uint16_t b) |
6ddbc6e4 PB |
11199 | { |
11200 | uint16_t res; | |
11201 | res = a + b; | |
f927dbda | 11202 | if (res < a) { |
6ddbc6e4 | 11203 | res = 0xffff; |
f927dbda | 11204 | } |
6ddbc6e4 PB |
11205 | return res; |
11206 | } | |
11207 | ||
460a09c1 | 11208 | static inline uint16_t sub16_usat(uint16_t a, uint16_t b) |
6ddbc6e4 | 11209 | { |
f927dbda | 11210 | if (a > b) { |
6ddbc6e4 | 11211 | return a - b; |
f927dbda | 11212 | } else { |
6ddbc6e4 | 11213 | return 0; |
f927dbda | 11214 | } |
6ddbc6e4 PB |
11215 | } |
11216 | ||
11217 | static inline uint8_t add8_usat(uint8_t a, uint8_t b) | |
11218 | { | |
11219 | uint8_t res; | |
11220 | res = a + b; | |
f927dbda | 11221 | if (res < a) { |
6ddbc6e4 | 11222 | res = 0xff; |
f927dbda | 11223 | } |
6ddbc6e4 PB |
11224 | return res; |
11225 | } | |
11226 | ||
11227 | static inline uint8_t sub8_usat(uint8_t a, uint8_t b) | |
11228 | { | |
f927dbda | 11229 | if (a > b) { |
6ddbc6e4 | 11230 | return a - b; |
f927dbda | 11231 | } else { |
6ddbc6e4 | 11232 | return 0; |
f927dbda | 11233 | } |
6ddbc6e4 PB |
11234 | } |
11235 | ||
11236 | #define ADD16(a, b, n) RESULT(add16_usat(a, b), n, 16); | |
11237 | #define SUB16(a, b, n) RESULT(sub16_usat(a, b), n, 16); | |
11238 | #define ADD8(a, b, n) RESULT(add8_usat(a, b), n, 8); | |
11239 | #define SUB8(a, b, n) RESULT(sub8_usat(a, b), n, 8); | |
11240 | #define PFX uq | |
11241 | ||
11242 | #include "op_addsub.h" | |
11243 | ||
11244 | /* Signed modulo arithmetic. */ | |
11245 | #define SARITH16(a, b, n, op) do { \ | |
11246 | int32_t sum; \ | |
db6e2e65 | 11247 | sum = (int32_t)(int16_t)(a) op (int32_t)(int16_t)(b); \ |
6ddbc6e4 PB |
11248 | RESULT(sum, n, 16); \ |
11249 | if (sum >= 0) \ | |
11250 | ge |= 3 << (n * 2); \ | |
04215eb1 | 11251 | } while (0) |
6ddbc6e4 PB |
11252 | |
11253 | #define SARITH8(a, b, n, op) do { \ | |
11254 | int32_t sum; \ | |
db6e2e65 | 11255 | sum = (int32_t)(int8_t)(a) op (int32_t)(int8_t)(b); \ |
6ddbc6e4 PB |
11256 | RESULT(sum, n, 8); \ |
11257 | if (sum >= 0) \ | |
11258 | ge |= 1 << n; \ | |
04215eb1 | 11259 | } while (0) |
6ddbc6e4 PB |
11260 | |
11261 | ||
11262 | #define ADD16(a, b, n) SARITH16(a, b, n, +) | |
11263 | #define SUB16(a, b, n) SARITH16(a, b, n, -) | |
11264 | #define ADD8(a, b, n) SARITH8(a, b, n, +) | |
11265 | #define SUB8(a, b, n) SARITH8(a, b, n, -) | |
11266 | #define PFX s | |
11267 | #define ARITH_GE | |
11268 | ||
11269 | #include "op_addsub.h" | |
11270 | ||
11271 | /* Unsigned modulo arithmetic. */ | |
11272 | #define ADD16(a, b, n) do { \ | |
11273 | uint32_t sum; \ | |
11274 | sum = (uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b); \ | |
11275 | RESULT(sum, n, 16); \ | |
a87aa10b | 11276 | if ((sum >> 16) == 1) \ |
6ddbc6e4 | 11277 | ge |= 3 << (n * 2); \ |
04215eb1 | 11278 | } while (0) |
6ddbc6e4 PB |
11279 | |
11280 | #define ADD8(a, b, n) do { \ | |
11281 | uint32_t sum; \ | |
11282 | sum = (uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b); \ | |
11283 | RESULT(sum, n, 8); \ | |
a87aa10b AZ |
11284 | if ((sum >> 8) == 1) \ |
11285 | ge |= 1 << n; \ | |
04215eb1 | 11286 | } while (0) |
6ddbc6e4 PB |
11287 | |
11288 | #define SUB16(a, b, n) do { \ | |
11289 | uint32_t sum; \ | |
11290 | sum = (uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b); \ | |
11291 | RESULT(sum, n, 16); \ | |
11292 | if ((sum >> 16) == 0) \ | |
11293 | ge |= 3 << (n * 2); \ | |
04215eb1 | 11294 | } while (0) |
6ddbc6e4 PB |
11295 | |
11296 | #define SUB8(a, b, n) do { \ | |
11297 | uint32_t sum; \ | |
11298 | sum = (uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b); \ | |
11299 | RESULT(sum, n, 8); \ | |
11300 | if ((sum >> 8) == 0) \ | |
a87aa10b | 11301 | ge |= 1 << n; \ |
04215eb1 | 11302 | } while (0) |
6ddbc6e4 PB |
11303 | |
11304 | #define PFX u | |
11305 | #define ARITH_GE | |
11306 | ||
11307 | #include "op_addsub.h" | |
11308 | ||
11309 | /* Halved signed arithmetic. */ | |
11310 | #define ADD16(a, b, n) \ | |
11311 | RESULT(((int32_t)(int16_t)(a) + (int32_t)(int16_t)(b)) >> 1, n, 16) | |
11312 | #define SUB16(a, b, n) \ | |
11313 | RESULT(((int32_t)(int16_t)(a) - (int32_t)(int16_t)(b)) >> 1, n, 16) | |
11314 | #define ADD8(a, b, n) \ | |
11315 | RESULT(((int32_t)(int8_t)(a) + (int32_t)(int8_t)(b)) >> 1, n, 8) | |
11316 | #define SUB8(a, b, n) \ | |
11317 | RESULT(((int32_t)(int8_t)(a) - (int32_t)(int8_t)(b)) >> 1, n, 8) | |
11318 | #define PFX sh | |
11319 | ||
11320 | #include "op_addsub.h" | |
11321 | ||
11322 | /* Halved unsigned arithmetic. */ | |
11323 | #define ADD16(a, b, n) \ | |
11324 | RESULT(((uint32_t)(uint16_t)(a) + (uint32_t)(uint16_t)(b)) >> 1, n, 16) | |
11325 | #define SUB16(a, b, n) \ | |
11326 | RESULT(((uint32_t)(uint16_t)(a) - (uint32_t)(uint16_t)(b)) >> 1, n, 16) | |
11327 | #define ADD8(a, b, n) \ | |
11328 | RESULT(((uint32_t)(uint8_t)(a) + (uint32_t)(uint8_t)(b)) >> 1, n, 8) | |
11329 | #define SUB8(a, b, n) \ | |
11330 | RESULT(((uint32_t)(uint8_t)(a) - (uint32_t)(uint8_t)(b)) >> 1, n, 8) | |
11331 | #define PFX uh | |
11332 | ||
11333 | #include "op_addsub.h" | |
11334 | ||
11335 | static inline uint8_t do_usad(uint8_t a, uint8_t b) | |
11336 | { | |
f927dbda | 11337 | if (a > b) { |
6ddbc6e4 | 11338 | return a - b; |
f927dbda | 11339 | } else { |
6ddbc6e4 | 11340 | return b - a; |
f927dbda | 11341 | } |
6ddbc6e4 PB |
11342 | } |
11343 | ||
11344 | /* Unsigned sum of absolute byte differences. */ | |
11345 | uint32_t HELPER(usad8)(uint32_t a, uint32_t b) | |
11346 | { | |
11347 | uint32_t sum; | |
11348 | sum = do_usad(a, b); | |
11349 | sum += do_usad(a >> 8, b >> 8); | |
bdc3b6f5 | 11350 | sum += do_usad(a >> 16, b >> 16); |
6ddbc6e4 PB |
11351 | sum += do_usad(a >> 24, b >> 24); |
11352 | return sum; | |
11353 | } | |
11354 | ||
11355 | /* For ARMv6 SEL instruction. */ | |
11356 | uint32_t HELPER(sel_flags)(uint32_t flags, uint32_t a, uint32_t b) | |
11357 | { | |
11358 | uint32_t mask; | |
11359 | ||
11360 | mask = 0; | |
f927dbda | 11361 | if (flags & 1) { |
6ddbc6e4 | 11362 | mask |= 0xff; |
f927dbda FR |
11363 | } |
11364 | if (flags & 2) { | |
6ddbc6e4 | 11365 | mask |= 0xff00; |
f927dbda FR |
11366 | } |
11367 | if (flags & 4) { | |
6ddbc6e4 | 11368 | mask |= 0xff0000; |
f927dbda FR |
11369 | } |
11370 | if (flags & 8) { | |
6ddbc6e4 | 11371 | mask |= 0xff000000; |
f927dbda | 11372 | } |
6ddbc6e4 PB |
11373 | return (a & mask) | (b & ~mask); |
11374 | } | |
11375 | ||
9b37a28c FR |
11376 | /* |
11377 | * CRC helpers. | |
aa633469 PM |
11378 | * The upper bytes of val (above the number specified by 'bytes') must have |
11379 | * been zeroed out by the caller. | |
11380 | */ | |
eb0ecd5a WN |
11381 | uint32_t HELPER(crc32)(uint32_t acc, uint32_t val, uint32_t bytes) |
11382 | { | |
11383 | uint8_t buf[4]; | |
11384 | ||
aa633469 | 11385 | stl_le_p(buf, val); |
eb0ecd5a WN |
11386 | |
11387 | /* zlib crc32 converts the accumulator and output to one's complement. */ | |
11388 | return crc32(acc ^ 0xffffffff, buf, bytes) ^ 0xffffffff; | |
11389 | } | |
11390 | ||
11391 | uint32_t HELPER(crc32c)(uint32_t acc, uint32_t val, uint32_t bytes) | |
11392 | { | |
11393 | uint8_t buf[4]; | |
11394 | ||
aa633469 | 11395 | stl_le_p(buf, val); |
eb0ecd5a WN |
11396 | |
11397 | /* Linux crc32c converts the output to one's complement. */ | |
11398 | return crc32c(acc, buf, bytes) ^ 0xffffffff; | |
11399 | } | |
a9e01311 | 11400 | |
9b37a28c FR |
11401 | /* |
11402 | * Return the exception level to which FP-disabled exceptions should | |
a9e01311 RH |
11403 | * be taken, or 0 if FP is enabled. |
11404 | */ | |
ced31551 | 11405 | int fp_exception_el(CPUARMState *env, int cur_el) |
a9e01311 | 11406 | { |
55faa212 | 11407 | #ifndef CONFIG_USER_ONLY |
d5a6fa2d RH |
11408 | uint64_t hcr_el2; |
11409 | ||
9b37a28c FR |
11410 | /* |
11411 | * CPACR and the CPTR registers don't exist before v6, so FP is | |
a9e01311 RH |
11412 | * always accessible |
11413 | */ | |
11414 | if (!arm_feature(env, ARM_FEATURE_V6)) { | |
11415 | return 0; | |
11416 | } | |
11417 | ||
d87513c0 PM |
11418 | if (arm_feature(env, ARM_FEATURE_M)) { |
11419 | /* CPACR can cause a NOCP UsageFault taken to current security state */ | |
11420 | if (!v7m_cpacr_pass(env, env->v7m.secure, cur_el != 0)) { | |
11421 | return 1; | |
11422 | } | |
11423 | ||
11424 | if (arm_feature(env, ARM_FEATURE_M_SECURITY) && !env->v7m.secure) { | |
11425 | if (!extract32(env->v7m.nsacr, 10, 1)) { | |
11426 | /* FP insns cause a NOCP UsageFault taken to Secure */ | |
11427 | return 3; | |
11428 | } | |
11429 | } | |
11430 | ||
11431 | return 0; | |
11432 | } | |
11433 | ||
d5a6fa2d RH |
11434 | hcr_el2 = arm_hcr_el2_eff(env); |
11435 | ||
9b37a28c FR |
11436 | /* |
11437 | * The CPACR controls traps to EL1, or PL1 if we're 32 bit: | |
a9e01311 RH |
11438 | * 0, 2 : trap EL0 and EL1/PL1 accesses |
11439 | * 1 : trap only EL0 accesses | |
11440 | * 3 : trap no accesses | |
c2ddb7cf | 11441 | * This register is ignored if E2H+TGE are both set. |
a9e01311 | 11442 | */ |
d5a6fa2d | 11443 | if ((hcr_el2 & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { |
fab8ad39 | 11444 | int fpen = FIELD_EX64(env->cp15.cpacr_el1, CPACR_EL1, FPEN); |
c2ddb7cf RH |
11445 | |
11446 | switch (fpen) { | |
02e1de14 RH |
11447 | case 1: |
11448 | if (cur_el != 0) { | |
11449 | break; | |
11450 | } | |
11451 | /* fall through */ | |
c2ddb7cf RH |
11452 | case 0: |
11453 | case 2: | |
02e1de14 RH |
11454 | /* Trap from Secure PL0 or PL1 to Secure PL1. */ |
11455 | if (!arm_el_is_aa64(env, 3) | |
11456 | && (cur_el == 3 || arm_is_secure_below_el3(env))) { | |
a9e01311 RH |
11457 | return 3; |
11458 | } | |
02e1de14 | 11459 | if (cur_el <= 1) { |
c2ddb7cf RH |
11460 | return 1; |
11461 | } | |
11462 | break; | |
a9e01311 | 11463 | } |
a9e01311 RH |
11464 | } |
11465 | ||
fc1120a7 PM |
11466 | /* |
11467 | * The NSACR allows A-profile AArch32 EL3 and M-profile secure mode | |
11468 | * to control non-secure access to the FPU. It doesn't have any | |
11469 | * effect if EL3 is AArch64 or if EL3 doesn't exist at all. | |
11470 | */ | |
11471 | if ((arm_feature(env, ARM_FEATURE_EL3) && !arm_el_is_aa64(env, 3) && | |
11472 | cur_el <= 2 && !arm_is_secure_below_el3(env))) { | |
11473 | if (!extract32(env->cp15.nsacr, 10, 1)) { | |
11474 | /* FP insns act as UNDEF */ | |
11475 | return cur_el == 2 ? 2 : 1; | |
11476 | } | |
11477 | } | |
11478 | ||
d5a6fa2d RH |
11479 | /* |
11480 | * CPTR_EL2 is present in v7VE or v8, and changes format | |
11481 | * with HCR_EL2.E2H (regardless of TGE). | |
a9e01311 | 11482 | */ |
d5a6fa2d RH |
11483 | if (cur_el <= 2) { |
11484 | if (hcr_el2 & HCR_E2H) { | |
fab8ad39 | 11485 | switch (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, FPEN)) { |
d5a6fa2d RH |
11486 | case 1: |
11487 | if (cur_el != 0 || !(hcr_el2 & HCR_TGE)) { | |
11488 | break; | |
11489 | } | |
11490 | /* fall through */ | |
11491 | case 0: | |
11492 | case 2: | |
11493 | return 2; | |
11494 | } | |
11495 | } else if (arm_is_el2_enabled(env)) { | |
fab8ad39 | 11496 | if (FIELD_EX64(env->cp15.cptr_el[2], CPTR_EL2, TFP)) { |
d5a6fa2d RH |
11497 | return 2; |
11498 | } | |
11499 | } | |
a9e01311 RH |
11500 | } |
11501 | ||
11502 | /* CPTR_EL3 : present in v8 */ | |
fab8ad39 | 11503 | if (FIELD_EX64(env->cp15.cptr_el[3], CPTR_EL3, TFP)) { |
a9e01311 RH |
11504 | /* Trap all FP ops to EL3 */ |
11505 | return 3; | |
11506 | } | |
55faa212 | 11507 | #endif |
a9e01311 RH |
11508 | return 0; |
11509 | } | |
11510 | ||
b9f6033c RH |
11511 | /* Return the exception level we're running at if this is our mmu_idx */ |
11512 | int arm_mmu_idx_to_el(ARMMMUIdx mmu_idx) | |
11513 | { | |
11514 | if (mmu_idx & ARM_MMU_IDX_M) { | |
11515 | return mmu_idx & ARM_MMU_IDX_M_PRIV; | |
11516 | } | |
11517 | ||
11518 | switch (mmu_idx) { | |
11519 | case ARMMMUIdx_E10_0: | |
11520 | case ARMMMUIdx_E20_0: | |
b9f6033c RH |
11521 | return 0; |
11522 | case ARMMMUIdx_E10_1: | |
452ef8cb | 11523 | case ARMMMUIdx_E10_1_PAN: |
b9f6033c RH |
11524 | return 1; |
11525 | case ARMMMUIdx_E2: | |
11526 | case ARMMMUIdx_E20_2: | |
452ef8cb | 11527 | case ARMMMUIdx_E20_2_PAN: |
b9f6033c | 11528 | return 2; |
d902ae75 | 11529 | case ARMMMUIdx_E3: |
b9f6033c RH |
11530 | return 3; |
11531 | default: | |
11532 | g_assert_not_reached(); | |
11533 | } | |
11534 | } | |
11535 | ||
7aab5a8c | 11536 | #ifndef CONFIG_TCG |
65e4655c RH |
11537 | ARMMMUIdx arm_v7m_mmu_idx_for_secstate(CPUARMState *env, bool secstate) |
11538 | { | |
7aab5a8c | 11539 | g_assert_not_reached(); |
65e4655c | 11540 | } |
7aab5a8c | 11541 | #endif |
65e4655c | 11542 | |
6f2d9d74 TK |
11543 | static bool arm_pan_enabled(CPUARMState *env) |
11544 | { | |
11545 | if (is_a64(env)) { | |
11546 | return env->pstate & PSTATE_PAN; | |
11547 | } else { | |
11548 | return env->uncached_cpsr & CPSR_PAN; | |
11549 | } | |
11550 | } | |
11551 | ||
164690b2 | 11552 | ARMMMUIdx arm_mmu_idx_el(CPUARMState *env, int el) |
65e4655c | 11553 | { |
b6ad6062 RDC |
11554 | ARMMMUIdx idx; |
11555 | uint64_t hcr; | |
11556 | ||
65e4655c | 11557 | if (arm_feature(env, ARM_FEATURE_M)) { |
50494a27 | 11558 | return arm_v7m_mmu_idx_for_secstate(env, env->v7m.secure); |
65e4655c RH |
11559 | } |
11560 | ||
6003d980 | 11561 | /* See ARM pseudo-function ELIsInHost. */ |
b9f6033c RH |
11562 | switch (el) { |
11563 | case 0: | |
b6ad6062 RDC |
11564 | hcr = arm_hcr_el2_eff(env); |
11565 | if ((hcr & (HCR_E2H | HCR_TGE)) == (HCR_E2H | HCR_TGE)) { | |
11566 | idx = ARMMMUIdx_E20_0; | |
11567 | } else { | |
11568 | idx = ARMMMUIdx_E10_0; | |
6003d980 | 11569 | } |
b6ad6062 | 11570 | break; |
b9f6033c | 11571 | case 1: |
6f2d9d74 | 11572 | if (arm_pan_enabled(env)) { |
b6ad6062 RDC |
11573 | idx = ARMMMUIdx_E10_1_PAN; |
11574 | } else { | |
11575 | idx = ARMMMUIdx_E10_1; | |
66412260 | 11576 | } |
b6ad6062 | 11577 | break; |
b9f6033c | 11578 | case 2: |
6003d980 | 11579 | /* Note that TGE does not apply at EL2. */ |
b6ad6062 | 11580 | if (arm_hcr_el2_eff(env) & HCR_E2H) { |
6f2d9d74 | 11581 | if (arm_pan_enabled(env)) { |
b6ad6062 RDC |
11582 | idx = ARMMMUIdx_E20_2_PAN; |
11583 | } else { | |
11584 | idx = ARMMMUIdx_E20_2; | |
66412260 | 11585 | } |
b6ad6062 RDC |
11586 | } else { |
11587 | idx = ARMMMUIdx_E2; | |
6003d980 | 11588 | } |
b6ad6062 | 11589 | break; |
b9f6033c | 11590 | case 3: |
d902ae75 | 11591 | return ARMMMUIdx_E3; |
b9f6033c RH |
11592 | default: |
11593 | g_assert_not_reached(); | |
65e4655c | 11594 | } |
b6ad6062 | 11595 | |
b6ad6062 | 11596 | return idx; |
50494a27 RH |
11597 | } |
11598 | ||
164690b2 RH |
11599 | ARMMMUIdx arm_mmu_idx(CPUARMState *env) |
11600 | { | |
11601 | return arm_mmu_idx_el(env, arm_current_el(env)); | |
11602 | } | |
11603 | ||
3902bfc6 RH |
11604 | static CPUARMTBFlags rebuild_hflags_common(CPUARMState *env, int fp_el, |
11605 | ARMMMUIdx mmu_idx, | |
11606 | CPUARMTBFlags flags) | |
fdd1b228 | 11607 | { |
a729a46b RH |
11608 | DP_TBFLAG_ANY(flags, FPEXC_EL, fp_el); |
11609 | DP_TBFLAG_ANY(flags, MMUIDX, arm_to_core_mmu_idx(mmu_idx)); | |
fdd1b228 | 11610 | |
fdd1b228 | 11611 | if (arm_singlestep_active(env)) { |
a729a46b | 11612 | DP_TBFLAG_ANY(flags, SS_ACTIVE, 1); |
fdd1b228 RH |
11613 | } |
11614 | return flags; | |
11615 | } | |
11616 | ||
3902bfc6 RH |
11617 | static CPUARMTBFlags rebuild_hflags_common_32(CPUARMState *env, int fp_el, |
11618 | ARMMMUIdx mmu_idx, | |
11619 | CPUARMTBFlags flags) | |
43eccfb6 | 11620 | { |
8061a649 RH |
11621 | bool sctlr_b = arm_sctlr_b(env); |
11622 | ||
11623 | if (sctlr_b) { | |
a729a46b | 11624 | DP_TBFLAG_A32(flags, SCTLR__B, 1); |
8061a649 RH |
11625 | } |
11626 | if (arm_cpu_data_is_big_endian_a32(env, sctlr_b)) { | |
a729a46b | 11627 | DP_TBFLAG_ANY(flags, BE_DATA, 1); |
8061a649 | 11628 | } |
a729a46b | 11629 | DP_TBFLAG_A32(flags, NS, !access_secure_reg(env)); |
43eccfb6 RH |
11630 | |
11631 | return rebuild_hflags_common(env, fp_el, mmu_idx, flags); | |
11632 | } | |
11633 | ||
3902bfc6 RH |
11634 | static CPUARMTBFlags rebuild_hflags_m32(CPUARMState *env, int fp_el, |
11635 | ARMMMUIdx mmu_idx) | |
6e33ced5 | 11636 | { |
3902bfc6 | 11637 | CPUARMTBFlags flags = {}; |
4479ec30 RH |
11638 | uint32_t ccr = env->v7m.ccr[env->v7m.secure]; |
11639 | ||
11640 | /* Without HaveMainExt, CCR.UNALIGN_TRP is RES1. */ | |
11641 | if (ccr & R_V7M_CCR_UNALIGN_TRP_MASK) { | |
11642 | DP_TBFLAG_ANY(flags, ALIGN_MEM, 1); | |
11643 | } | |
6e33ced5 RH |
11644 | |
11645 | if (arm_v7m_is_handler_mode(env)) { | |
a729a46b | 11646 | DP_TBFLAG_M32(flags, HANDLER, 1); |
6e33ced5 RH |
11647 | } |
11648 | ||
11649 | /* | |
11650 | * v8M always applies stack limit checks unless CCR.STKOFHFNMIGN | |
11651 | * is suppressing them because the requested execution priority | |
11652 | * is less than 0. | |
11653 | */ | |
11654 | if (arm_feature(env, ARM_FEATURE_V8) && | |
11655 | !((mmu_idx & ARM_MMU_IDX_M_NEGPRI) && | |
4479ec30 | 11656 | (ccr & R_V7M_CCR_STKOFHFNMIGN_MASK))) { |
a729a46b | 11657 | DP_TBFLAG_M32(flags, STACKCHECK, 1); |
6e33ced5 RH |
11658 | } |
11659 | ||
a393dee0 RH |
11660 | if (arm_feature(env, ARM_FEATURE_M_SECURITY) && env->v7m.secure) { |
11661 | DP_TBFLAG_M32(flags, SECURE, 1); | |
11662 | } | |
11663 | ||
6e33ced5 RH |
11664 | return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags); |
11665 | } | |
11666 | ||
3902bfc6 RH |
11667 | static CPUARMTBFlags rebuild_hflags_a32(CPUARMState *env, int fp_el, |
11668 | ARMMMUIdx mmu_idx) | |
c747224c | 11669 | { |
8480e933 | 11670 | CPUARMTBFlags flags = {}; |
4479ec30 RH |
11671 | int el = arm_current_el(env); |
11672 | ||
11673 | if (arm_sctlr(env, el) & SCTLR_A) { | |
11674 | DP_TBFLAG_ANY(flags, ALIGN_MEM, 1); | |
11675 | } | |
0a54d68e RH |
11676 | |
11677 | if (arm_el_is_aa64(env, 1)) { | |
a729a46b | 11678 | DP_TBFLAG_A32(flags, VFPEN, 1); |
0a54d68e | 11679 | } |
5bb0a20b | 11680 | |
4479ec30 | 11681 | if (el < 2 && env->cp15.hstr_el2 && |
5bb0a20b | 11682 | (arm_hcr_el2_eff(env) & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) { |
a729a46b | 11683 | DP_TBFLAG_A32(flags, HSTR_ACTIVE, 1); |
5bb0a20b MZ |
11684 | } |
11685 | ||
520d1621 PM |
11686 | if (env->uncached_cpsr & CPSR_IL) { |
11687 | DP_TBFLAG_ANY(flags, PSTATE__IL, 1); | |
11688 | } | |
11689 | ||
75fe8356 RH |
11690 | /* |
11691 | * The SME exception we are testing for is raised via | |
11692 | * AArch64.CheckFPAdvSIMDEnabled(), as called from | |
11693 | * AArch32.CheckAdvSIMDOrFPEnabled(). | |
11694 | */ | |
11695 | if (el == 0 | |
11696 | && FIELD_EX64(env->svcr, SVCR, SM) | |
11697 | && (!arm_is_el2_enabled(env) | |
11698 | || (arm_el_is_aa64(env, 2) && !(env->cp15.hcr_el2 & HCR_TGE))) | |
11699 | && arm_el_is_aa64(env, 1) | |
11700 | && !sme_fa64(env, el)) { | |
11701 | DP_TBFLAG_A32(flags, SME_TRAP_NONSTREAMING, 1); | |
11702 | } | |
11703 | ||
83f4baef | 11704 | return rebuild_hflags_common_32(env, fp_el, mmu_idx, flags); |
c747224c RH |
11705 | } |
11706 | ||
3902bfc6 RH |
11707 | static CPUARMTBFlags rebuild_hflags_a64(CPUARMState *env, int el, int fp_el, |
11708 | ARMMMUIdx mmu_idx) | |
a9e01311 | 11709 | { |
8480e933 | 11710 | CPUARMTBFlags flags = {}; |
d4d7503a | 11711 | ARMMMUIdx stage1 = stage_1_mmu_idx(mmu_idx); |
c1547bba | 11712 | uint64_t tcr = regime_tcr(env, mmu_idx); |
d4d7503a RH |
11713 | uint64_t sctlr; |
11714 | int tbii, tbid; | |
b9adaa70 | 11715 | |
a729a46b | 11716 | DP_TBFLAG_ANY(flags, AARCH64_STATE, 1); |
cd208a1c | 11717 | |
339370b9 | 11718 | /* Get control bits for tagged addresses. */ |
b830a5ee RH |
11719 | tbid = aa64_va_parameter_tbi(tcr, mmu_idx); |
11720 | tbii = tbid & ~aa64_va_parameter_tbid(tcr, mmu_idx); | |
5d8634f5 | 11721 | |
a729a46b RH |
11722 | DP_TBFLAG_A64(flags, TBII, tbii); |
11723 | DP_TBFLAG_A64(flags, TBID, tbid); | |
d4d7503a RH |
11724 | |
11725 | if (cpu_isar_feature(aa64_sve, env_archcpu(env))) { | |
11726 | int sve_el = sve_exception_el(env, el); | |
5d8634f5 | 11727 | |
d4d7503a | 11728 | /* |
397d922c RH |
11729 | * If either FP or SVE are disabled, translator does not need len. |
11730 | * If SVE EL > FP EL, FP exception has precedence, and translator | |
11731 | * does not need SVE EL. Save potential re-translations by forcing | |
11732 | * the unneeded data to zero. | |
d4d7503a | 11733 | */ |
397d922c RH |
11734 | if (fp_el != 0) { |
11735 | if (sve_el > fp_el) { | |
11736 | sve_el = 0; | |
11737 | } | |
11738 | } else if (sve_el == 0) { | |
5ef3cc56 | 11739 | DP_TBFLAG_A64(flags, VL, sve_vqm1_for_el(env, el)); |
5d8634f5 | 11740 | } |
a729a46b | 11741 | DP_TBFLAG_A64(flags, SVEEXC_EL, sve_el); |
d4d7503a | 11742 | } |
6b2ca83e | 11743 | if (cpu_isar_feature(aa64_sme, env_archcpu(env))) { |
5d7953ad | 11744 | int sme_el = sme_exception_el(env, el); |
62151133 | 11745 | bool sm = FIELD_EX64(env->svcr, SVCR, SM); |
5d7953ad RH |
11746 | |
11747 | DP_TBFLAG_A64(flags, SMEEXC_EL, sme_el); | |
11748 | if (sme_el == 0) { | |
11749 | /* Similarly, do not compute SVL if SME is disabled. */ | |
62151133 RH |
11750 | int svl = sve_vqm1_for_el_sm(env, el, true); |
11751 | DP_TBFLAG_A64(flags, SVL, svl); | |
11752 | if (sm) { | |
11753 | /* If SVE is disabled, we will not have set VL above. */ | |
11754 | DP_TBFLAG_A64(flags, VL, svl); | |
11755 | } | |
5d7953ad | 11756 | } |
62151133 | 11757 | if (sm) { |
a3637e88 | 11758 | DP_TBFLAG_A64(flags, PSTATE_SM, 1); |
75fe8356 | 11759 | DP_TBFLAG_A64(flags, SME_TRAP_NONSTREAMING, !sme_fa64(env, el)); |
a3637e88 RH |
11760 | } |
11761 | DP_TBFLAG_A64(flags, PSTATE_ZA, FIELD_EX64(env->svcr, SVCR, ZA)); | |
6b2ca83e | 11762 | } |
1db5e96c | 11763 | |
aaec1432 | 11764 | sctlr = regime_sctlr(env, stage1); |
1db5e96c | 11765 | |
4479ec30 RH |
11766 | if (sctlr & SCTLR_A) { |
11767 | DP_TBFLAG_ANY(flags, ALIGN_MEM, 1); | |
11768 | } | |
11769 | ||
8061a649 | 11770 | if (arm_cpu_data_is_big_endian_a64(el, sctlr)) { |
a729a46b | 11771 | DP_TBFLAG_ANY(flags, BE_DATA, 1); |
8061a649 RH |
11772 | } |
11773 | ||
d4d7503a RH |
11774 | if (cpu_isar_feature(aa64_pauth, env_archcpu(env))) { |
11775 | /* | |
11776 | * In order to save space in flags, we record only whether | |
11777 | * pauth is "inactive", meaning all insns are implemented as | |
11778 | * a nop, or "active" when some action must be performed. | |
11779 | * The decision of which action to take is left to a helper. | |
11780 | */ | |
11781 | if (sctlr & (SCTLR_EnIA | SCTLR_EnIB | SCTLR_EnDA | SCTLR_EnDB)) { | |
a729a46b | 11782 | DP_TBFLAG_A64(flags, PAUTH_ACTIVE, 1); |
1db5e96c | 11783 | } |
d4d7503a | 11784 | } |
0816ef1b | 11785 | |
d4d7503a RH |
11786 | if (cpu_isar_feature(aa64_bti, env_archcpu(env))) { |
11787 | /* Note that SCTLR_EL[23].BT == SCTLR_BT1. */ | |
11788 | if (sctlr & (el == 0 ? SCTLR_BT0 : SCTLR_BT1)) { | |
a729a46b | 11789 | DP_TBFLAG_A64(flags, BT, 1); |
0816ef1b | 11790 | } |
d4d7503a | 11791 | } |
08f1434a | 11792 | |
cc28fc30 | 11793 | /* Compute the condition for using AccType_UNPRIV for LDTR et al. */ |
7a8014ab RH |
11794 | if (!(env->pstate & PSTATE_UAO)) { |
11795 | switch (mmu_idx) { | |
11796 | case ARMMMUIdx_E10_1: | |
11797 | case ARMMMUIdx_E10_1_PAN: | |
7a8014ab | 11798 | /* TODO: ARMv8.3-NV */ |
a729a46b | 11799 | DP_TBFLAG_A64(flags, UNPRIV, 1); |
7a8014ab RH |
11800 | break; |
11801 | case ARMMMUIdx_E20_2: | |
11802 | case ARMMMUIdx_E20_2_PAN: | |
7a8014ab RH |
11803 | /* |
11804 | * Note that EL20_2 is gated by HCR_EL2.E2H == 1, but EL20_0 is | |
11805 | * gated by HCR_EL2.<E2H,TGE> == '11', and so is LDTR. | |
11806 | */ | |
11807 | if (env->cp15.hcr_el2 & HCR_TGE) { | |
a729a46b | 11808 | DP_TBFLAG_A64(flags, UNPRIV, 1); |
7a8014ab RH |
11809 | } |
11810 | break; | |
11811 | default: | |
11812 | break; | |
cc28fc30 | 11813 | } |
cc28fc30 RH |
11814 | } |
11815 | ||
520d1621 PM |
11816 | if (env->pstate & PSTATE_IL) { |
11817 | DP_TBFLAG_ANY(flags, PSTATE__IL, 1); | |
11818 | } | |
11819 | ||
81ae05fa RH |
11820 | if (cpu_isar_feature(aa64_mte, env_archcpu(env))) { |
11821 | /* | |
11822 | * Set MTE_ACTIVE if any access may be Checked, and leave clear | |
11823 | * if all accesses must be Unchecked: | |
11824 | * 1) If no TBI, then there are no tags in the address to check, | |
11825 | * 2) If Tag Check Override, then all accesses are Unchecked, | |
11826 | * 3) If Tag Check Fail == 0, then Checked access have no effect, | |
11827 | * 4) If no Allocation Tag Access, then all accesses are Unchecked. | |
11828 | */ | |
11829 | if (allocation_tag_access_enabled(env, el, sctlr)) { | |
a729a46b | 11830 | DP_TBFLAG_A64(flags, ATA, 1); |
81ae05fa RH |
11831 | if (tbid |
11832 | && !(env->pstate & PSTATE_TCO) | |
11833 | && (sctlr & (el == 0 ? SCTLR_TCF0 : SCTLR_TCF))) { | |
a729a46b | 11834 | DP_TBFLAG_A64(flags, MTE_ACTIVE, 1); |
81ae05fa RH |
11835 | } |
11836 | } | |
11837 | /* And again for unprivileged accesses, if required. */ | |
a729a46b | 11838 | if (EX_TBFLAG_A64(flags, UNPRIV) |
81ae05fa RH |
11839 | && tbid |
11840 | && !(env->pstate & PSTATE_TCO) | |
2d928adf | 11841 | && (sctlr & SCTLR_TCF0) |
81ae05fa | 11842 | && allocation_tag_access_enabled(env, 0, sctlr)) { |
a729a46b | 11843 | DP_TBFLAG_A64(flags, MTE0_ACTIVE, 1); |
81ae05fa RH |
11844 | } |
11845 | /* Cache TCMA as well as TBI. */ | |
a729a46b | 11846 | DP_TBFLAG_A64(flags, TCMA, aa64_va_parameter_tcma(tcr, mmu_idx)); |
81ae05fa RH |
11847 | } |
11848 | ||
d4d7503a RH |
11849 | return rebuild_hflags_common(env, fp_el, mmu_idx, flags); |
11850 | } | |
11851 | ||
3902bfc6 | 11852 | static CPUARMTBFlags rebuild_hflags_internal(CPUARMState *env) |
3d74e2e9 RH |
11853 | { |
11854 | int el = arm_current_el(env); | |
11855 | int fp_el = fp_exception_el(env, el); | |
164690b2 | 11856 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); |
3d74e2e9 RH |
11857 | |
11858 | if (is_a64(env)) { | |
11859 | return rebuild_hflags_a64(env, el, fp_el, mmu_idx); | |
11860 | } else if (arm_feature(env, ARM_FEATURE_M)) { | |
11861 | return rebuild_hflags_m32(env, fp_el, mmu_idx); | |
11862 | } else { | |
11863 | return rebuild_hflags_a32(env, fp_el, mmu_idx); | |
11864 | } | |
11865 | } | |
11866 | ||
11867 | void arm_rebuild_hflags(CPUARMState *env) | |
11868 | { | |
11869 | env->hflags = rebuild_hflags_internal(env); | |
11870 | } | |
11871 | ||
19717e9b PM |
11872 | /* |
11873 | * If we have triggered a EL state change we can't rely on the | |
11874 | * translator having passed it to us, we need to recompute. | |
11875 | */ | |
11876 | void HELPER(rebuild_hflags_m32_newel)(CPUARMState *env) | |
11877 | { | |
11878 | int el = arm_current_el(env); | |
11879 | int fp_el = fp_exception_el(env, el); | |
11880 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
3902bfc6 | 11881 | |
19717e9b PM |
11882 | env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx); |
11883 | } | |
11884 | ||
14f3c588 RH |
11885 | void HELPER(rebuild_hflags_m32)(CPUARMState *env, int el) |
11886 | { | |
11887 | int fp_el = fp_exception_el(env, el); | |
11888 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11889 | ||
11890 | env->hflags = rebuild_hflags_m32(env, fp_el, mmu_idx); | |
11891 | } | |
11892 | ||
f80741d1 AB |
11893 | /* |
11894 | * If we have triggered a EL state change we can't rely on the | |
563152e0 | 11895 | * translator having passed it to us, we need to recompute. |
f80741d1 AB |
11896 | */ |
11897 | void HELPER(rebuild_hflags_a32_newel)(CPUARMState *env) | |
11898 | { | |
11899 | int el = arm_current_el(env); | |
11900 | int fp_el = fp_exception_el(env, el); | |
11901 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11902 | env->hflags = rebuild_hflags_a32(env, fp_el, mmu_idx); | |
11903 | } | |
11904 | ||
14f3c588 RH |
11905 | void HELPER(rebuild_hflags_a32)(CPUARMState *env, int el) |
11906 | { | |
11907 | int fp_el = fp_exception_el(env, el); | |
11908 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11909 | ||
11910 | env->hflags = rebuild_hflags_a32(env, fp_el, mmu_idx); | |
11911 | } | |
11912 | ||
11913 | void HELPER(rebuild_hflags_a64)(CPUARMState *env, int el) | |
11914 | { | |
11915 | int fp_el = fp_exception_el(env, el); | |
11916 | ARMMMUIdx mmu_idx = arm_mmu_idx_el(env, el); | |
11917 | ||
11918 | env->hflags = rebuild_hflags_a64(env, el, fp_el, mmu_idx); | |
11919 | } | |
11920 | ||
0ee8b24a PMD |
11921 | static inline void assert_hflags_rebuild_correctly(CPUARMState *env) |
11922 | { | |
11923 | #ifdef CONFIG_DEBUG_TCG | |
3902bfc6 RH |
11924 | CPUARMTBFlags c = env->hflags; |
11925 | CPUARMTBFlags r = rebuild_hflags_internal(env); | |
0ee8b24a | 11926 | |
a378206a RH |
11927 | if (unlikely(c.flags != r.flags || c.flags2 != r.flags2)) { |
11928 | fprintf(stderr, "TCG hflags mismatch " | |
11929 | "(current:(0x%08x,0x" TARGET_FMT_lx ")" | |
11930 | " rebuilt:(0x%08x,0x" TARGET_FMT_lx ")\n", | |
11931 | c.flags, c.flags2, r.flags, r.flags2); | |
0ee8b24a PMD |
11932 | abort(); |
11933 | } | |
11934 | #endif | |
11935 | } | |
11936 | ||
26702213 PM |
11937 | static bool mve_no_pred(CPUARMState *env) |
11938 | { | |
11939 | /* | |
11940 | * Return true if there is definitely no predication of MVE | |
11941 | * instructions by VPR or LTPSIZE. (Returning false even if there | |
11942 | * isn't any predication is OK; generated code will just be | |
11943 | * a little worse.) | |
11944 | * If the CPU does not implement MVE then this TB flag is always 0. | |
11945 | * | |
11946 | * NOTE: if you change this logic, the "recalculate s->mve_no_pred" | |
11947 | * logic in gen_update_fp_context() needs to be updated to match. | |
11948 | * | |
11949 | * We do not include the effect of the ECI bits here -- they are | |
11950 | * tracked in other TB flags. This simplifies the logic for | |
11951 | * "when did we emit code that changes the MVE_NO_PRED TB flag | |
11952 | * and thus need to end the TB?". | |
11953 | */ | |
11954 | if (cpu_isar_feature(aa32_mve, env_archcpu(env))) { | |
11955 | return false; | |
11956 | } | |
11957 | if (env->v7m.vpr) { | |
11958 | return false; | |
11959 | } | |
11960 | if (env->v7m.ltpsize < 4) { | |
11961 | return false; | |
11962 | } | |
11963 | return true; | |
11964 | } | |
11965 | ||
d4d7503a RH |
11966 | void cpu_get_tb_cpu_state(CPUARMState *env, target_ulong *pc, |
11967 | target_ulong *cs_base, uint32_t *pflags) | |
11968 | { | |
3902bfc6 | 11969 | CPUARMTBFlags flags; |
d4d7503a | 11970 | |
0ee8b24a | 11971 | assert_hflags_rebuild_correctly(env); |
3902bfc6 | 11972 | flags = env->hflags; |
3d74e2e9 | 11973 | |
a729a46b | 11974 | if (EX_TBFLAG_ANY(flags, AARCH64_STATE)) { |
d4d7503a | 11975 | *pc = env->pc; |
d4d7503a | 11976 | if (cpu_isar_feature(aa64_bti, env_archcpu(env))) { |
a729a46b | 11977 | DP_TBFLAG_A64(flags, BTYPE, env->btype); |
08f1434a | 11978 | } |
a9e01311 RH |
11979 | } else { |
11980 | *pc = env->regs[15]; | |
6e33ced5 RH |
11981 | |
11982 | if (arm_feature(env, ARM_FEATURE_M)) { | |
9550d1bd RH |
11983 | if (arm_feature(env, ARM_FEATURE_M_SECURITY) && |
11984 | FIELD_EX32(env->v7m.fpccr[M_REG_S], V7M_FPCCR, S) | |
11985 | != env->v7m.secure) { | |
a729a46b | 11986 | DP_TBFLAG_M32(flags, FPCCR_S_WRONG, 1); |
9550d1bd RH |
11987 | } |
11988 | ||
11989 | if ((env->v7m.fpccr[env->v7m.secure] & R_V7M_FPCCR_ASPEN_MASK) && | |
11990 | (!(env->v7m.control[M_REG_S] & R_V7M_CONTROL_FPCA_MASK) || | |
11991 | (env->v7m.secure && | |
11992 | !(env->v7m.control[M_REG_S] & R_V7M_CONTROL_SFPA_MASK)))) { | |
11993 | /* | |
11994 | * ASPEN is set, but FPCA/SFPA indicate that there is no | |
11995 | * active FP context; we must create a new FP context before | |
11996 | * executing any FP insn. | |
11997 | */ | |
a729a46b | 11998 | DP_TBFLAG_M32(flags, NEW_FP_CTXT_NEEDED, 1); |
9550d1bd RH |
11999 | } |
12000 | ||
12001 | bool is_secure = env->v7m.fpccr[M_REG_S] & R_V7M_FPCCR_S_MASK; | |
12002 | if (env->v7m.fpccr[is_secure] & R_V7M_FPCCR_LSPACT_MASK) { | |
a729a46b | 12003 | DP_TBFLAG_M32(flags, LSPACT, 1); |
9550d1bd | 12004 | } |
26702213 PM |
12005 | |
12006 | if (mve_no_pred(env)) { | |
12007 | DP_TBFLAG_M32(flags, MVE_NO_PRED, 1); | |
12008 | } | |
6e33ced5 | 12009 | } else { |
bbad7c62 RH |
12010 | /* |
12011 | * Note that XSCALE_CPAR shares bits with VECSTRIDE. | |
12012 | * Note that VECLEN+VECSTRIDE are RES0 for M-profile. | |
12013 | */ | |
12014 | if (arm_feature(env, ARM_FEATURE_XSCALE)) { | |
a729a46b | 12015 | DP_TBFLAG_A32(flags, XSCALE_CPAR, env->cp15.c15_cpar); |
bbad7c62 | 12016 | } else { |
a729a46b RH |
12017 | DP_TBFLAG_A32(flags, VECLEN, env->vfp.vec_len); |
12018 | DP_TBFLAG_A32(flags, VECSTRIDE, env->vfp.vec_stride); | |
bbad7c62 | 12019 | } |
0a54d68e | 12020 | if (env->vfp.xregs[ARM_VFP_FPEXC] & (1 << 30)) { |
a729a46b | 12021 | DP_TBFLAG_A32(flags, VFPEN, 1); |
0a54d68e | 12022 | } |
6e33ced5 RH |
12023 | } |
12024 | ||
a729a46b RH |
12025 | DP_TBFLAG_AM32(flags, THUMB, env->thumb); |
12026 | DP_TBFLAG_AM32(flags, CONDEXEC, env->condexec_bits); | |
d4d7503a | 12027 | } |
a9e01311 | 12028 | |
60e12c37 RH |
12029 | /* |
12030 | * The SS_ACTIVE and PSTATE_SS bits correspond to the state machine | |
a9e01311 RH |
12031 | * states defined in the ARM ARM for software singlestep: |
12032 | * SS_ACTIVE PSTATE.SS State | |
12033 | * 0 x Inactive (the TB flag for SS is always 0) | |
12034 | * 1 0 Active-pending | |
12035 | * 1 1 Active-not-pending | |
ae6eb1e9 | 12036 | * SS_ACTIVE is set in hflags; PSTATE__SS is computed every TB. |
a9e01311 | 12037 | */ |
a729a46b RH |
12038 | if (EX_TBFLAG_ANY(flags, SS_ACTIVE) && (env->pstate & PSTATE_SS)) { |
12039 | DP_TBFLAG_ANY(flags, PSTATE__SS, 1); | |
a9e01311 | 12040 | } |
a9e01311 | 12041 | |
3902bfc6 | 12042 | *pflags = flags.flags; |
a378206a | 12043 | *cs_base = flags.flags2; |
a9e01311 | 12044 | } |
0ab5953b RH |
12045 | |
12046 | #ifdef TARGET_AARCH64 | |
12047 | /* | |
12048 | * The manual says that when SVE is enabled and VQ is widened the | |
12049 | * implementation is allowed to zero the previously inaccessible | |
12050 | * portion of the registers. The corollary to that is that when | |
12051 | * SVE is enabled and VQ is narrowed we are also allowed to zero | |
12052 | * the now inaccessible portion of the registers. | |
12053 | * | |
12054 | * The intent of this is that no predicate bit beyond VQ is ever set. | |
12055 | * Which means that some operations on predicate registers themselves | |
12056 | * may operate on full uint64_t or even unrolled across the maximum | |
12057 | * uint64_t[4]. Performing 4 bits of host arithmetic unconditionally | |
12058 | * may well be cheaper than conditionals to restrict the operation | |
12059 | * to the relevant portion of a uint16_t[16]. | |
12060 | */ | |
12061 | void aarch64_sve_narrow_vq(CPUARMState *env, unsigned vq) | |
12062 | { | |
12063 | int i, j; | |
12064 | uint64_t pmask; | |
12065 | ||
12066 | assert(vq >= 1 && vq <= ARM_MAX_VQ); | |
2fc0cc0e | 12067 | assert(vq <= env_archcpu(env)->sve_max_vq); |
0ab5953b RH |
12068 | |
12069 | /* Zap the high bits of the zregs. */ | |
12070 | for (i = 0; i < 32; i++) { | |
12071 | memset(&env->vfp.zregs[i].d[2 * vq], 0, 16 * (ARM_MAX_VQ - vq)); | |
12072 | } | |
12073 | ||
12074 | /* Zap the high bits of the pregs and ffr. */ | |
12075 | pmask = 0; | |
12076 | if (vq & 3) { | |
12077 | pmask = ~(-1ULL << (16 * (vq & 3))); | |
12078 | } | |
12079 | for (j = vq / 4; j < ARM_MAX_VQ / 4; j++) { | |
12080 | for (i = 0; i < 17; ++i) { | |
12081 | env->vfp.pregs[i].p[j] &= pmask; | |
12082 | } | |
12083 | pmask = 0; | |
12084 | } | |
12085 | } | |
12086 | ||
6a775fd6 RH |
12087 | static uint32_t sve_vqm1_for_el_sm_ena(CPUARMState *env, int el, bool sm) |
12088 | { | |
12089 | int exc_el; | |
12090 | ||
12091 | if (sm) { | |
12092 | exc_el = sme_exception_el(env, el); | |
12093 | } else { | |
12094 | exc_el = sve_exception_el(env, el); | |
12095 | } | |
12096 | if (exc_el) { | |
12097 | return 0; /* disabled */ | |
12098 | } | |
12099 | return sve_vqm1_for_el_sm(env, el, sm); | |
12100 | } | |
12101 | ||
0ab5953b RH |
12102 | /* |
12103 | * Notice a change in SVE vector size when changing EL. | |
12104 | */ | |
9a05f7b6 RH |
12105 | void aarch64_sve_change_el(CPUARMState *env, int old_el, |
12106 | int new_el, bool el0_a64) | |
0ab5953b | 12107 | { |
2fc0cc0e | 12108 | ARMCPU *cpu = env_archcpu(env); |
0ab5953b | 12109 | int old_len, new_len; |
6a775fd6 | 12110 | bool old_a64, new_a64, sm; |
0ab5953b RH |
12111 | |
12112 | /* Nothing to do if no SVE. */ | |
cd208a1c | 12113 | if (!cpu_isar_feature(aa64_sve, cpu)) { |
0ab5953b RH |
12114 | return; |
12115 | } | |
12116 | ||
12117 | /* Nothing to do if FP is disabled in either EL. */ | |
12118 | if (fp_exception_el(env, old_el) || fp_exception_el(env, new_el)) { | |
12119 | return; | |
12120 | } | |
12121 | ||
04fbce76 RH |
12122 | old_a64 = old_el ? arm_el_is_aa64(env, old_el) : el0_a64; |
12123 | new_a64 = new_el ? arm_el_is_aa64(env, new_el) : el0_a64; | |
12124 | ||
12125 | /* | |
12126 | * Both AArch64.TakeException and AArch64.ExceptionReturn | |
12127 | * invoke ResetSVEState when taking an exception from, or | |
12128 | * returning to, AArch32 state when PSTATE.SM is enabled. | |
12129 | */ | |
6a775fd6 RH |
12130 | sm = FIELD_EX64(env->svcr, SVCR, SM); |
12131 | if (old_a64 != new_a64 && sm) { | |
04fbce76 RH |
12132 | arm_reset_sve_state(env); |
12133 | return; | |
12134 | } | |
12135 | ||
0ab5953b RH |
12136 | /* |
12137 | * DDI0584A.d sec 3.2: "If SVE instructions are disabled or trapped | |
12138 | * at ELx, or not available because the EL is in AArch32 state, then | |
12139 | * for all purposes other than a direct read, the ZCR_ELx.LEN field | |
12140 | * has an effective value of 0". | |
12141 | * | |
12142 | * Consider EL2 (aa64, vq=4) -> EL0 (aa32) -> EL1 (aa64, vq=0). | |
12143 | * If we ignore aa32 state, we would fail to see the vq4->vq0 transition | |
12144 | * from EL2->EL1. Thus we go ahead and narrow when entering aa32 so that | |
12145 | * we already have the correct register contents when encountering the | |
12146 | * vq0->vq0 transition between EL0->EL1. | |
12147 | */ | |
6a775fd6 RH |
12148 | old_len = new_len = 0; |
12149 | if (old_a64) { | |
12150 | old_len = sve_vqm1_for_el_sm_ena(env, old_el, sm); | |
12151 | } | |
12152 | if (new_a64) { | |
12153 | new_len = sve_vqm1_for_el_sm_ena(env, new_el, sm); | |
12154 | } | |
0ab5953b RH |
12155 | |
12156 | /* When changing vector length, clear inaccessible state. */ | |
12157 | if (new_len < old_len) { | |
12158 | aarch64_sve_narrow_vq(env, new_len + 1); | |
12159 | } | |
12160 | } | |
12161 | #endif |