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dc5bd18f MC |
1 | /* |
2 | * QEMU RISC-V CPU | |
3 | * | |
4 | * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu | |
5 | * Copyright (c) 2017-2018 SiFive, Inc. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2 or later, as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "qemu/osdep.h" | |
0442428a | 21 | #include "qemu/qemu-print.h" |
856dfd8a | 22 | #include "qemu/ctype.h" |
dc5bd18f MC |
23 | #include "qemu/log.h" |
24 | #include "cpu.h" | |
25 | #include "exec/exec-all.h" | |
26 | #include "qapi/error.h" | |
b55d7d34 | 27 | #include "qemu/error-report.h" |
c4e95030 | 28 | #include "hw/qdev-properties.h" |
dc5bd18f MC |
29 | #include "migration/vmstate.h" |
30 | ||
31 | /* RISC-V CPU definitions */ | |
32 | ||
79f86934 | 33 | static const char riscv_exts[26] = "IEMAFDQCLBJTPVNSUHKORWXYZG"; |
dc5bd18f MC |
34 | |
35 | const char * const riscv_int_regnames[] = { | |
7f9188e2 RH |
36 | "zero", "ra", "sp", "gp", "tp", "t0", "t1", "t2", |
37 | "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5", | |
38 | "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7", | |
39 | "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6" | |
dc5bd18f MC |
40 | }; |
41 | ||
42 | const char * const riscv_fpr_regnames[] = { | |
7f9188e2 RH |
43 | "ft0", "ft1", "ft2", "ft3", "ft4", "ft5", "ft6", "ft7", |
44 | "fs0", "fs1", "fa0", "fa1", "fa2", "fa3", "fa4", "fa5", | |
45 | "fa6", "fa7", "fs2", "fs3", "fs4", "fs5", "fs6", "fs7", | |
46 | "fs8", "fs9", "fs10", "fs11", "ft8", "ft9", "ft10", "ft11" | |
dc5bd18f MC |
47 | }; |
48 | ||
49 | const char * const riscv_excp_names[] = { | |
50 | "misaligned_fetch", | |
51 | "fault_fetch", | |
52 | "illegal_instruction", | |
53 | "breakpoint", | |
54 | "misaligned_load", | |
55 | "fault_load", | |
56 | "misaligned_store", | |
57 | "fault_store", | |
58 | "user_ecall", | |
59 | "supervisor_ecall", | |
60 | "hypervisor_ecall", | |
61 | "machine_ecall", | |
62 | "exec_page_fault", | |
63 | "load_page_fault", | |
64 | "reserved", | |
65 | "store_page_fault" | |
66 | }; | |
67 | ||
68 | const char * const riscv_intr_names[] = { | |
69 | "u_software", | |
70 | "s_software", | |
71 | "h_software", | |
72 | "m_software", | |
73 | "u_timer", | |
74 | "s_timer", | |
75 | "h_timer", | |
76 | "m_timer", | |
77 | "u_external", | |
78 | "s_external", | |
79 | "h_external", | |
80 | "m_external", | |
426f0348 MC |
81 | "reserved", |
82 | "reserved", | |
83 | "reserved", | |
84 | "reserved" | |
dc5bd18f MC |
85 | }; |
86 | ||
dc5bd18f MC |
87 | static void set_misa(CPURISCVState *env, target_ulong misa) |
88 | { | |
f18637cd | 89 | env->misa_mask = env->misa = misa; |
dc5bd18f MC |
90 | } |
91 | ||
92 | static void set_versions(CPURISCVState *env, int user_ver, int priv_ver) | |
93 | { | |
94 | env->user_ver = user_ver; | |
95 | env->priv_ver = priv_ver; | |
96 | } | |
97 | ||
98 | static void set_feature(CPURISCVState *env, int feature) | |
99 | { | |
100 | env->features |= (1ULL << feature); | |
101 | } | |
102 | ||
103 | static void set_resetvec(CPURISCVState *env, int resetvec) | |
104 | { | |
105 | #ifndef CONFIG_USER_ONLY | |
106 | env->resetvec = resetvec; | |
107 | #endif | |
108 | } | |
109 | ||
110 | static void riscv_any_cpu_init(Object *obj) | |
111 | { | |
112 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
113 | set_misa(env, RVXLEN | RVI | RVM | RVA | RVF | RVD | RVC | RVU); | |
114 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_10_0); | |
115 | set_resetvec(env, DEFAULT_RSTVEC); | |
116 | } | |
117 | ||
eab15862 MC |
118 | #if defined(TARGET_RISCV32) |
119 | ||
8903bf6e AF |
120 | static void riscv_base32_cpu_init(Object *obj) |
121 | { | |
122 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
b55d7d34 AF |
123 | /* We set this in the realise function */ |
124 | set_misa(env, 0); | |
8903bf6e AF |
125 | } |
126 | ||
dc5bd18f MC |
127 | static void rv32gcsu_priv1_09_1_cpu_init(Object *obj) |
128 | { | |
129 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
130 | set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
131 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_09_1); | |
132 | set_resetvec(env, DEFAULT_RSTVEC); | |
133 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 134 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
135 | } |
136 | ||
137 | static void rv32gcsu_priv1_10_0_cpu_init(Object *obj) | |
138 | { | |
139 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
140 | set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
141 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_10_0); | |
142 | set_resetvec(env, DEFAULT_RSTVEC); | |
143 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 144 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
145 | } |
146 | ||
147 | static void rv32imacu_nommu_cpu_init(Object *obj) | |
148 | { | |
149 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
150 | set_misa(env, RV32 | RVI | RVM | RVA | RVC | RVU); | |
151 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_10_0); | |
152 | set_resetvec(env, DEFAULT_RSTVEC); | |
a88365c1 | 153 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
154 | } |
155 | ||
eab15862 MC |
156 | #elif defined(TARGET_RISCV64) |
157 | ||
8903bf6e AF |
158 | static void riscv_base64_cpu_init(Object *obj) |
159 | { | |
160 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
b55d7d34 AF |
161 | /* We set this in the realise function */ |
162 | set_misa(env, 0); | |
8903bf6e AF |
163 | } |
164 | ||
dc5bd18f MC |
165 | static void rv64gcsu_priv1_09_1_cpu_init(Object *obj) |
166 | { | |
167 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
168 | set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
169 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_09_1); | |
170 | set_resetvec(env, DEFAULT_RSTVEC); | |
171 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 172 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
173 | } |
174 | ||
175 | static void rv64gcsu_priv1_10_0_cpu_init(Object *obj) | |
176 | { | |
177 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
178 | set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
179 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_10_0); | |
180 | set_resetvec(env, DEFAULT_RSTVEC); | |
181 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 182 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
183 | } |
184 | ||
185 | static void rv64imacu_nommu_cpu_init(Object *obj) | |
186 | { | |
187 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
188 | set_misa(env, RV64 | RVI | RVM | RVA | RVC | RVU); | |
189 | set_versions(env, USER_VERSION_2_02_0, PRIV_VERSION_1_10_0); | |
190 | set_resetvec(env, DEFAULT_RSTVEC); | |
a88365c1 | 191 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
192 | } |
193 | ||
eab15862 | 194 | #endif |
dc5bd18f MC |
195 | |
196 | static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model) | |
197 | { | |
198 | ObjectClass *oc; | |
199 | char *typename; | |
200 | char **cpuname; | |
201 | ||
202 | cpuname = g_strsplit(cpu_model, ",", 1); | |
203 | typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]); | |
204 | oc = object_class_by_name(typename); | |
205 | g_strfreev(cpuname); | |
206 | g_free(typename); | |
207 | if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU) || | |
208 | object_class_is_abstract(oc)) { | |
209 | return NULL; | |
210 | } | |
211 | return oc; | |
212 | } | |
213 | ||
90c84c56 | 214 | static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags) |
dc5bd18f MC |
215 | { |
216 | RISCVCPU *cpu = RISCV_CPU(cs); | |
217 | CPURISCVState *env = &cpu->env; | |
218 | int i; | |
219 | ||
90c84c56 | 220 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc); |
dc5bd18f | 221 | #ifndef CONFIG_USER_ONLY |
90c84c56 MA |
222 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mhartid ", env->mhartid); |
223 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mstatus ", env->mstatus); | |
224 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mip ", | |
225 | (target_ulong)atomic_read(&env->mip)); | |
226 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mie ", env->mie); | |
227 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mideleg ", env->mideleg); | |
228 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "medeleg ", env->medeleg); | |
229 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtvec ", env->mtvec); | |
230 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mepc ", env->mepc); | |
231 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mcause ", env->mcause); | |
dc5bd18f MC |
232 | #endif |
233 | ||
234 | for (i = 0; i < 32; i++) { | |
90c84c56 MA |
235 | qemu_fprintf(f, " %s " TARGET_FMT_lx, |
236 | riscv_int_regnames[i], env->gpr[i]); | |
dc5bd18f | 237 | if ((i & 3) == 3) { |
90c84c56 | 238 | qemu_fprintf(f, "\n"); |
dc5bd18f MC |
239 | } |
240 | } | |
86ea1880 RH |
241 | if (flags & CPU_DUMP_FPU) { |
242 | for (i = 0; i < 32; i++) { | |
90c84c56 MA |
243 | qemu_fprintf(f, " %s %016" PRIx64, |
244 | riscv_fpr_regnames[i], env->fpr[i]); | |
86ea1880 | 245 | if ((i & 3) == 3) { |
90c84c56 | 246 | qemu_fprintf(f, "\n"); |
86ea1880 | 247 | } |
dc5bd18f MC |
248 | } |
249 | } | |
250 | } | |
251 | ||
252 | static void riscv_cpu_set_pc(CPUState *cs, vaddr value) | |
253 | { | |
254 | RISCVCPU *cpu = RISCV_CPU(cs); | |
255 | CPURISCVState *env = &cpu->env; | |
256 | env->pc = value; | |
257 | } | |
258 | ||
259 | static void riscv_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) | |
260 | { | |
261 | RISCVCPU *cpu = RISCV_CPU(cs); | |
262 | CPURISCVState *env = &cpu->env; | |
263 | env->pc = tb->pc; | |
264 | } | |
265 | ||
266 | static bool riscv_cpu_has_work(CPUState *cs) | |
267 | { | |
268 | #ifndef CONFIG_USER_ONLY | |
269 | RISCVCPU *cpu = RISCV_CPU(cs); | |
270 | CPURISCVState *env = &cpu->env; | |
271 | /* | |
272 | * Definition of the WFI instruction requires it to ignore the privilege | |
273 | * mode and delegation registers, but respect individual enables | |
274 | */ | |
275 | return (atomic_read(&env->mip) & env->mie) != 0; | |
276 | #else | |
277 | return true; | |
278 | #endif | |
279 | } | |
280 | ||
281 | void restore_state_to_opc(CPURISCVState *env, TranslationBlock *tb, | |
282 | target_ulong *data) | |
283 | { | |
284 | env->pc = data[0]; | |
285 | } | |
286 | ||
287 | static void riscv_cpu_reset(CPUState *cs) | |
288 | { | |
289 | RISCVCPU *cpu = RISCV_CPU(cs); | |
290 | RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); | |
291 | CPURISCVState *env = &cpu->env; | |
292 | ||
293 | mcc->parent_reset(cs); | |
294 | #ifndef CONFIG_USER_ONLY | |
295 | env->priv = PRV_M; | |
296 | env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV); | |
297 | env->mcause = 0; | |
298 | env->pc = env->resetvec; | |
299 | #endif | |
300 | cs->exception_index = EXCP_NONE; | |
301 | set_default_nan_mode(1, &env->fp_status); | |
302 | } | |
303 | ||
304 | static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info) | |
305 | { | |
306 | #if defined(TARGET_RISCV32) | |
307 | info->print_insn = print_insn_riscv32; | |
308 | #elif defined(TARGET_RISCV64) | |
309 | info->print_insn = print_insn_riscv64; | |
310 | #endif | |
311 | } | |
312 | ||
313 | static void riscv_cpu_realize(DeviceState *dev, Error **errp) | |
314 | { | |
315 | CPUState *cs = CPU(dev); | |
c4e95030 AF |
316 | RISCVCPU *cpu = RISCV_CPU(dev); |
317 | CPURISCVState *env = &cpu->env; | |
dc5bd18f | 318 | RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev); |
c4e95030 AF |
319 | int priv_version = PRIV_VERSION_1_10_0; |
320 | int user_version = USER_VERSION_2_02_0; | |
b55d7d34 | 321 | target_ulong target_misa = 0; |
dc5bd18f MC |
322 | Error *local_err = NULL; |
323 | ||
324 | cpu_exec_realizefn(cs, &local_err); | |
325 | if (local_err != NULL) { | |
326 | error_propagate(errp, local_err); | |
327 | return; | |
328 | } | |
329 | ||
c4e95030 AF |
330 | if (cpu->cfg.priv_spec) { |
331 | if (!g_strcmp0(cpu->cfg.priv_spec, "v1.10.0")) { | |
332 | priv_version = PRIV_VERSION_1_10_0; | |
333 | } else if (!g_strcmp0(cpu->cfg.priv_spec, "v1.9.1")) { | |
334 | priv_version = PRIV_VERSION_1_09_1; | |
335 | } else { | |
336 | error_setg(errp, | |
337 | "Unsupported privilege spec version '%s'", | |
338 | cpu->cfg.priv_spec); | |
339 | return; | |
340 | } | |
341 | } | |
342 | ||
343 | if (cpu->cfg.user_spec) { | |
344 | if (!g_strcmp0(cpu->cfg.user_spec, "v2.02.0")) { | |
345 | user_version = USER_VERSION_2_02_0; | |
346 | } else { | |
347 | error_setg(errp, | |
348 | "Unsupported user spec version '%s'", | |
349 | cpu->cfg.user_spec); | |
350 | return; | |
351 | } | |
352 | } | |
353 | ||
354 | set_versions(env, user_version, priv_version); | |
355 | set_resetvec(env, DEFAULT_RSTVEC); | |
356 | ||
357 | if (cpu->cfg.mmu) { | |
358 | set_feature(env, RISCV_FEATURE_MMU); | |
359 | } | |
360 | ||
361 | if (cpu->cfg.pmp) { | |
362 | set_feature(env, RISCV_FEATURE_PMP); | |
363 | } | |
364 | ||
b55d7d34 AF |
365 | /* If misa isn't set (rv32 and rv64 machines) set it here */ |
366 | if (!env->misa) { | |
367 | /* Do some ISA extension error checking */ | |
368 | if (cpu->cfg.ext_i && cpu->cfg.ext_e) { | |
369 | error_setg(errp, | |
370 | "I and E extensions are incompatible"); | |
371 | return; | |
372 | } | |
373 | ||
374 | if (cpu->cfg.ext_g && !(cpu->cfg.ext_i & cpu->cfg.ext_m & | |
375 | cpu->cfg.ext_a & cpu->cfg.ext_f & | |
376 | cpu->cfg.ext_d)) { | |
377 | warn_report("Setting G will also set IMAFD"); | |
378 | cpu->cfg.ext_i = true; | |
379 | cpu->cfg.ext_m = true; | |
380 | cpu->cfg.ext_a = true; | |
381 | cpu->cfg.ext_f = true; | |
382 | cpu->cfg.ext_d = true; | |
383 | } | |
384 | ||
385 | /* Set the ISA extensions, checks should have happened above */ | |
386 | if (cpu->cfg.ext_i) { | |
387 | target_misa |= RVI; | |
388 | } | |
389 | if (cpu->cfg.ext_e) { | |
390 | target_misa |= RVE; | |
391 | } | |
392 | if (cpu->cfg.ext_m) { | |
393 | target_misa |= RVM; | |
394 | } | |
395 | if (cpu->cfg.ext_a) { | |
396 | target_misa |= RVA; | |
397 | } | |
398 | if (cpu->cfg.ext_f) { | |
399 | target_misa |= RVF; | |
400 | } | |
401 | if (cpu->cfg.ext_d) { | |
402 | target_misa |= RVD; | |
403 | } | |
404 | if (cpu->cfg.ext_c) { | |
405 | target_misa |= RVC; | |
406 | } | |
407 | if (cpu->cfg.ext_s) { | |
408 | target_misa |= RVS; | |
409 | } | |
410 | if (cpu->cfg.ext_u) { | |
411 | target_misa |= RVU; | |
412 | } | |
413 | ||
414 | set_misa(env, RVXLEN | target_misa); | |
415 | } | |
416 | ||
5371f5cd JW |
417 | riscv_cpu_register_gdb_regs_for_features(cs); |
418 | ||
dc5bd18f MC |
419 | qemu_init_vcpu(cs); |
420 | cpu_reset(cs); | |
421 | ||
422 | mcc->parent_realize(dev, errp); | |
423 | } | |
424 | ||
425 | static void riscv_cpu_init(Object *obj) | |
426 | { | |
dc5bd18f MC |
427 | RISCVCPU *cpu = RISCV_CPU(obj); |
428 | ||
7506ed90 | 429 | cpu_set_cpustate_pointers(cpu); |
dc5bd18f MC |
430 | } |
431 | ||
432 | static const VMStateDescription vmstate_riscv_cpu = { | |
433 | .name = "cpu", | |
434 | .unmigratable = 1, | |
435 | }; | |
436 | ||
c4e95030 | 437 | static Property riscv_cpu_properties[] = { |
b55d7d34 AF |
438 | DEFINE_PROP_BOOL("i", RISCVCPU, cfg.ext_i, true), |
439 | DEFINE_PROP_BOOL("e", RISCVCPU, cfg.ext_e, false), | |
440 | DEFINE_PROP_BOOL("g", RISCVCPU, cfg.ext_g, true), | |
441 | DEFINE_PROP_BOOL("m", RISCVCPU, cfg.ext_m, true), | |
442 | DEFINE_PROP_BOOL("a", RISCVCPU, cfg.ext_a, true), | |
443 | DEFINE_PROP_BOOL("f", RISCVCPU, cfg.ext_f, true), | |
444 | DEFINE_PROP_BOOL("d", RISCVCPU, cfg.ext_d, true), | |
445 | DEFINE_PROP_BOOL("c", RISCVCPU, cfg.ext_c, true), | |
446 | DEFINE_PROP_BOOL("s", RISCVCPU, cfg.ext_s, true), | |
447 | DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true), | |
c4e95030 AF |
448 | DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec), |
449 | DEFINE_PROP_STRING("user_spec", RISCVCPU, cfg.user_spec), | |
450 | DEFINE_PROP_BOOL("mmu", RISCVCPU, cfg.mmu, true), | |
451 | DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true), | |
452 | DEFINE_PROP_END_OF_LIST(), | |
453 | }; | |
454 | ||
dc5bd18f MC |
455 | static void riscv_cpu_class_init(ObjectClass *c, void *data) |
456 | { | |
457 | RISCVCPUClass *mcc = RISCV_CPU_CLASS(c); | |
458 | CPUClass *cc = CPU_CLASS(c); | |
459 | DeviceClass *dc = DEVICE_CLASS(c); | |
460 | ||
41fbbba7 MZ |
461 | device_class_set_parent_realize(dc, riscv_cpu_realize, |
462 | &mcc->parent_realize); | |
dc5bd18f MC |
463 | |
464 | mcc->parent_reset = cc->reset; | |
465 | cc->reset = riscv_cpu_reset; | |
466 | ||
467 | cc->class_by_name = riscv_cpu_class_by_name; | |
468 | cc->has_work = riscv_cpu_has_work; | |
469 | cc->do_interrupt = riscv_cpu_do_interrupt; | |
470 | cc->cpu_exec_interrupt = riscv_cpu_exec_interrupt; | |
471 | cc->dump_state = riscv_cpu_dump_state; | |
472 | cc->set_pc = riscv_cpu_set_pc; | |
473 | cc->synchronize_from_tb = riscv_cpu_synchronize_from_tb; | |
474 | cc->gdb_read_register = riscv_cpu_gdb_read_register; | |
475 | cc->gdb_write_register = riscv_cpu_gdb_write_register; | |
5371f5cd JW |
476 | cc->gdb_num_core_regs = 33; |
477 | #if defined(TARGET_RISCV32) | |
478 | cc->gdb_core_xml_file = "riscv-32bit-cpu.xml"; | |
479 | #elif defined(TARGET_RISCV64) | |
480 | cc->gdb_core_xml_file = "riscv-64bit-cpu.xml"; | |
481 | #endif | |
dc5bd18f MC |
482 | cc->gdb_stop_before_watchpoint = true; |
483 | cc->disas_set_info = riscv_cpu_disas_set_info; | |
8a4ca3c1 | 484 | #ifndef CONFIG_USER_ONLY |
cbf58276 | 485 | cc->do_unassigned_access = riscv_cpu_unassigned_access; |
dc5bd18f MC |
486 | cc->do_unaligned_access = riscv_cpu_do_unaligned_access; |
487 | cc->get_phys_page_debug = riscv_cpu_get_phys_page_debug; | |
488 | #endif | |
489 | #ifdef CONFIG_TCG | |
490 | cc->tcg_initialize = riscv_translate_init; | |
8a4ca3c1 | 491 | cc->tlb_fill = riscv_cpu_tlb_fill; |
dc5bd18f MC |
492 | #endif |
493 | /* For now, mark unmigratable: */ | |
494 | cc->vmsd = &vmstate_riscv_cpu; | |
c4e95030 | 495 | dc->props = riscv_cpu_properties; |
dc5bd18f MC |
496 | } |
497 | ||
dc5bd18f MC |
498 | char *riscv_isa_string(RISCVCPU *cpu) |
499 | { | |
500 | int i; | |
d1fd31f8 MC |
501 | const size_t maxlen = sizeof("rv128") + sizeof(riscv_exts) + 1; |
502 | char *isa_str = g_new(char, maxlen); | |
503 | char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", TARGET_LONG_BITS); | |
dc5bd18f MC |
504 | for (i = 0; i < sizeof(riscv_exts); i++) { |
505 | if (cpu->env.misa & RV(riscv_exts[i])) { | |
d1fd31f8 | 506 | *p++ = qemu_tolower(riscv_exts[i]); |
dc5bd18f MC |
507 | } |
508 | } | |
d1fd31f8 MC |
509 | *p = '\0'; |
510 | return isa_str; | |
dc5bd18f MC |
511 | } |
512 | ||
eab15862 | 513 | static gint riscv_cpu_list_compare(gconstpointer a, gconstpointer b) |
dc5bd18f | 514 | { |
eab15862 MC |
515 | ObjectClass *class_a = (ObjectClass *)a; |
516 | ObjectClass *class_b = (ObjectClass *)b; | |
517 | const char *name_a, *name_b; | |
dc5bd18f | 518 | |
eab15862 MC |
519 | name_a = object_class_get_name(class_a); |
520 | name_b = object_class_get_name(class_b); | |
521 | return strcmp(name_a, name_b); | |
dc5bd18f MC |
522 | } |
523 | ||
eab15862 | 524 | static void riscv_cpu_list_entry(gpointer data, gpointer user_data) |
dc5bd18f | 525 | { |
eab15862 MC |
526 | const char *typename = object_class_get_name(OBJECT_CLASS(data)); |
527 | int len = strlen(typename) - strlen(RISCV_CPU_TYPE_SUFFIX); | |
dc5bd18f | 528 | |
0442428a | 529 | qemu_printf("%.*s\n", len, typename); |
eab15862 | 530 | } |
dc5bd18f | 531 | |
0442428a | 532 | void riscv_cpu_list(void) |
eab15862 | 533 | { |
eab15862 MC |
534 | GSList *list; |
535 | ||
536 | list = object_class_get_list(TYPE_RISCV_CPU, false); | |
537 | list = g_slist_sort(list, riscv_cpu_list_compare); | |
0442428a | 538 | g_slist_foreach(list, riscv_cpu_list_entry, NULL); |
eab15862 | 539 | g_slist_free(list); |
dc5bd18f MC |
540 | } |
541 | ||
eab15862 MC |
542 | #define DEFINE_CPU(type_name, initfn) \ |
543 | { \ | |
544 | .name = type_name, \ | |
545 | .parent = TYPE_RISCV_CPU, \ | |
546 | .instance_init = initfn \ | |
547 | } | |
548 | ||
549 | static const TypeInfo riscv_cpu_type_infos[] = { | |
550 | { | |
551 | .name = TYPE_RISCV_CPU, | |
552 | .parent = TYPE_CPU, | |
553 | .instance_size = sizeof(RISCVCPU), | |
554 | .instance_init = riscv_cpu_init, | |
555 | .abstract = true, | |
556 | .class_size = sizeof(RISCVCPUClass), | |
557 | .class_init = riscv_cpu_class_init, | |
558 | }, | |
559 | DEFINE_CPU(TYPE_RISCV_CPU_ANY, riscv_any_cpu_init), | |
560 | #if defined(TARGET_RISCV32) | |
8903bf6e | 561 | DEFINE_CPU(TYPE_RISCV_CPU_BASE32, riscv_base32_cpu_init), |
eab15862 | 562 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31, rv32imacu_nommu_cpu_init), |
c1fb65e6 AF |
563 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34, rv32gcsu_priv1_10_0_cpu_init), |
564 | /* Depreacted */ | |
565 | DEFINE_CPU(TYPE_RISCV_CPU_RV32IMACU_NOMMU, rv32imacu_nommu_cpu_init), | |
566 | DEFINE_CPU(TYPE_RISCV_CPU_RV32GCSU_V1_09_1, rv32gcsu_priv1_09_1_cpu_init), | |
567 | DEFINE_CPU(TYPE_RISCV_CPU_RV32GCSU_V1_10_0, rv32gcsu_priv1_10_0_cpu_init) | |
eab15862 | 568 | #elif defined(TARGET_RISCV64) |
8903bf6e | 569 | DEFINE_CPU(TYPE_RISCV_CPU_BASE64, riscv_base64_cpu_init), |
eab15862 | 570 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51, rv64imacu_nommu_cpu_init), |
c1fb65e6 AF |
571 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54, rv64gcsu_priv1_10_0_cpu_init), |
572 | /* Deprecated */ | |
573 | DEFINE_CPU(TYPE_RISCV_CPU_RV64IMACU_NOMMU, rv64imacu_nommu_cpu_init), | |
574 | DEFINE_CPU(TYPE_RISCV_CPU_RV64GCSU_V1_09_1, rv64gcsu_priv1_09_1_cpu_init), | |
575 | DEFINE_CPU(TYPE_RISCV_CPU_RV64GCSU_V1_10_0, rv64gcsu_priv1_10_0_cpu_init) | |
eab15862 MC |
576 | #endif |
577 | }; | |
578 | ||
579 | DEFINE_TYPES(riscv_cpu_type_infos) |