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dc5bd18f MC |
1 | /* |
2 | * QEMU RISC-V CPU | |
3 | * | |
4 | * Copyright (c) 2016-2017 Sagar Karandikar, [email protected] | |
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 | 29 | #include "migration/vmstate.h" |
135b03cb | 30 | #include "fpu/softfloat-helpers.h" |
dc5bd18f MC |
31 | |
32 | /* RISC-V CPU definitions */ | |
33 | ||
79f86934 | 34 | static const char riscv_exts[26] = "IEMAFDQCLBJTPVNSUHKORWXYZG"; |
dc5bd18f MC |
35 | |
36 | const char * const riscv_int_regnames[] = { | |
a9f37afa AP |
37 | "x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1", |
38 | "x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3", | |
39 | "x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4", | |
40 | "x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11", | |
41 | "x28/t3", "x29/t4", "x30/t5", "x31/t6" | |
dc5bd18f MC |
42 | }; |
43 | ||
44 | const char * const riscv_fpr_regnames[] = { | |
a9f37afa AP |
45 | "f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5", |
46 | "f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1", | |
47 | "f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7", | |
48 | "f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7", | |
49 | "f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9", | |
50 | "f30/ft10", "f31/ft11" | |
dc5bd18f MC |
51 | }; |
52 | ||
53 | const char * const riscv_excp_names[] = { | |
54 | "misaligned_fetch", | |
55 | "fault_fetch", | |
56 | "illegal_instruction", | |
57 | "breakpoint", | |
58 | "misaligned_load", | |
59 | "fault_load", | |
60 | "misaligned_store", | |
61 | "fault_store", | |
62 | "user_ecall", | |
63 | "supervisor_ecall", | |
64 | "hypervisor_ecall", | |
65 | "machine_ecall", | |
66 | "exec_page_fault", | |
67 | "load_page_fault", | |
68 | "reserved", | |
fd990e86 | 69 | "store_page_fault", |
ab67a1d0 AF |
70 | "reserved", |
71 | "reserved", | |
72 | "reserved", | |
73 | "reserved", | |
74 | "guest_exec_page_fault", | |
75 | "guest_load_page_fault", | |
76 | "reserved", | |
fd990e86 | 77 | "guest_store_page_fault", |
dc5bd18f MC |
78 | }; |
79 | ||
80 | const char * const riscv_intr_names[] = { | |
81 | "u_software", | |
82 | "s_software", | |
205377f8 | 83 | "vs_software", |
dc5bd18f MC |
84 | "m_software", |
85 | "u_timer", | |
86 | "s_timer", | |
205377f8 | 87 | "vs_timer", |
dc5bd18f MC |
88 | "m_timer", |
89 | "u_external", | |
205377f8 | 90 | "vs_external", |
dc5bd18f MC |
91 | "h_external", |
92 | "m_external", | |
426f0348 MC |
93 | "reserved", |
94 | "reserved", | |
95 | "reserved", | |
96 | "reserved" | |
dc5bd18f MC |
97 | }; |
98 | ||
dc5bd18f MC |
99 | static void set_misa(CPURISCVState *env, target_ulong misa) |
100 | { | |
f18637cd | 101 | env->misa_mask = env->misa = misa; |
dc5bd18f MC |
102 | } |
103 | ||
c9a73910 | 104 | static void set_priv_version(CPURISCVState *env, int priv_ver) |
dc5bd18f | 105 | { |
dc5bd18f MC |
106 | env->priv_ver = priv_ver; |
107 | } | |
108 | ||
109 | static void set_feature(CPURISCVState *env, int feature) | |
110 | { | |
111 | env->features |= (1ULL << feature); | |
112 | } | |
113 | ||
114 | static void set_resetvec(CPURISCVState *env, int resetvec) | |
115 | { | |
116 | #ifndef CONFIG_USER_ONLY | |
117 | env->resetvec = resetvec; | |
118 | #endif | |
119 | } | |
120 | ||
121 | static void riscv_any_cpu_init(Object *obj) | |
122 | { | |
123 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
124 | set_misa(env, RVXLEN | RVI | RVM | RVA | RVF | RVD | RVC | RVU); | |
c9a73910 | 125 | set_priv_version(env, PRIV_VERSION_1_11_0); |
dc5bd18f MC |
126 | set_resetvec(env, DEFAULT_RSTVEC); |
127 | } | |
128 | ||
eab15862 MC |
129 | #if defined(TARGET_RISCV32) |
130 | ||
8903bf6e AF |
131 | static void riscv_base32_cpu_init(Object *obj) |
132 | { | |
133 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
b55d7d34 AF |
134 | /* We set this in the realise function */ |
135 | set_misa(env, 0); | |
8903bf6e AF |
136 | } |
137 | ||
dc5bd18f MC |
138 | static void rv32gcsu_priv1_09_1_cpu_init(Object *obj) |
139 | { | |
140 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
141 | set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
c9a73910 | 142 | set_priv_version(env, PRIV_VERSION_1_09_1); |
dc5bd18f MC |
143 | set_resetvec(env, DEFAULT_RSTVEC); |
144 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 145 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
146 | } |
147 | ||
148 | static void rv32gcsu_priv1_10_0_cpu_init(Object *obj) | |
149 | { | |
150 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
151 | set_misa(env, RV32 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
c9a73910 | 152 | set_priv_version(env, PRIV_VERSION_1_10_0); |
dc5bd18f MC |
153 | set_resetvec(env, DEFAULT_RSTVEC); |
154 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 155 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
156 | } |
157 | ||
158 | static void rv32imacu_nommu_cpu_init(Object *obj) | |
159 | { | |
160 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
161 | set_misa(env, RV32 | RVI | RVM | RVA | RVC | RVU); | |
c9a73910 | 162 | set_priv_version(env, PRIV_VERSION_1_10_0); |
dc5bd18f | 163 | set_resetvec(env, DEFAULT_RSTVEC); |
a88365c1 | 164 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
165 | } |
166 | ||
eab15862 MC |
167 | #elif defined(TARGET_RISCV64) |
168 | ||
8903bf6e AF |
169 | static void riscv_base64_cpu_init(Object *obj) |
170 | { | |
171 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
b55d7d34 AF |
172 | /* We set this in the realise function */ |
173 | set_misa(env, 0); | |
8903bf6e AF |
174 | } |
175 | ||
dc5bd18f MC |
176 | static void rv64gcsu_priv1_09_1_cpu_init(Object *obj) |
177 | { | |
178 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
179 | set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
c9a73910 | 180 | set_priv_version(env, PRIV_VERSION_1_09_1); |
dc5bd18f MC |
181 | set_resetvec(env, DEFAULT_RSTVEC); |
182 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 183 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
184 | } |
185 | ||
186 | static void rv64gcsu_priv1_10_0_cpu_init(Object *obj) | |
187 | { | |
188 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
189 | set_misa(env, RV64 | RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); | |
c9a73910 | 190 | set_priv_version(env, PRIV_VERSION_1_10_0); |
dc5bd18f MC |
191 | set_resetvec(env, DEFAULT_RSTVEC); |
192 | set_feature(env, RISCV_FEATURE_MMU); | |
a88365c1 | 193 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
194 | } |
195 | ||
196 | static void rv64imacu_nommu_cpu_init(Object *obj) | |
197 | { | |
198 | CPURISCVState *env = &RISCV_CPU(obj)->env; | |
199 | set_misa(env, RV64 | RVI | RVM | RVA | RVC | RVU); | |
c9a73910 | 200 | set_priv_version(env, PRIV_VERSION_1_10_0); |
dc5bd18f | 201 | set_resetvec(env, DEFAULT_RSTVEC); |
a88365c1 | 202 | set_feature(env, RISCV_FEATURE_PMP); |
dc5bd18f MC |
203 | } |
204 | ||
eab15862 | 205 | #endif |
dc5bd18f MC |
206 | |
207 | static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model) | |
208 | { | |
209 | ObjectClass *oc; | |
210 | char *typename; | |
211 | char **cpuname; | |
212 | ||
213 | cpuname = g_strsplit(cpu_model, ",", 1); | |
214 | typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]); | |
215 | oc = object_class_by_name(typename); | |
216 | g_strfreev(cpuname); | |
217 | g_free(typename); | |
218 | if (!oc || !object_class_dynamic_cast(oc, TYPE_RISCV_CPU) || | |
219 | object_class_is_abstract(oc)) { | |
220 | return NULL; | |
221 | } | |
222 | return oc; | |
223 | } | |
224 | ||
90c84c56 | 225 | static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags) |
dc5bd18f MC |
226 | { |
227 | RISCVCPU *cpu = RISCV_CPU(cs); | |
228 | CPURISCVState *env = &cpu->env; | |
229 | int i; | |
230 | ||
df30e652 AF |
231 | #if !defined(CONFIG_USER_ONLY) |
232 | if (riscv_has_ext(env, RVH)) { | |
233 | qemu_fprintf(f, " %s %d\n", "V = ", riscv_cpu_virt_enabled(env)); | |
234 | } | |
235 | #endif | |
90c84c56 | 236 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc); |
dc5bd18f | 237 | #ifndef CONFIG_USER_ONLY |
90c84c56 MA |
238 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mhartid ", env->mhartid); |
239 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mstatus ", env->mstatus); | |
551fa7e8 AF |
240 | #ifdef TARGET_RISCV32 |
241 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mstatush ", env->mstatush); | |
242 | #endif | |
df30e652 AF |
243 | if (riscv_has_ext(env, RVH)) { |
244 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "hstatus ", env->hstatus); | |
245 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vsstatus ", env->vsstatus); | |
246 | } | |
02861613 | 247 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mip ", env->mip); |
90c84c56 MA |
248 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mie ", env->mie); |
249 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mideleg ", env->mideleg); | |
df30e652 AF |
250 | if (riscv_has_ext(env, RVH)) { |
251 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "hideleg ", env->hideleg); | |
252 | } | |
90c84c56 | 253 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "medeleg ", env->medeleg); |
df30e652 AF |
254 | if (riscv_has_ext(env, RVH)) { |
255 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "hedeleg ", env->hedeleg); | |
256 | } | |
90c84c56 | 257 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtvec ", env->mtvec); |
df30e652 AF |
258 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "stvec ", env->stvec); |
259 | if (riscv_has_ext(env, RVH)) { | |
260 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vstvec ", env->vstvec); | |
261 | } | |
90c84c56 | 262 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mepc ", env->mepc); |
df30e652 AF |
263 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "sepc ", env->sepc); |
264 | if (riscv_has_ext(env, RVH)) { | |
265 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vsepc ", env->vsepc); | |
266 | } | |
90c84c56 | 267 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mcause ", env->mcause); |
df30e652 AF |
268 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "scause ", env->scause); |
269 | if (riscv_has_ext(env, RVH)) { | |
270 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "vscause ", env->vscause); | |
271 | } | |
272 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtval ", env->mtval); | |
273 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "stval ", env->sbadaddr); | |
274 | if (riscv_has_ext(env, RVH)) { | |
275 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "htval ", env->htval); | |
276 | qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "mtval2 ", env->mtval2); | |
277 | } | |
dc5bd18f MC |
278 | #endif |
279 | ||
280 | for (i = 0; i < 32; i++) { | |
90c84c56 MA |
281 | qemu_fprintf(f, " %s " TARGET_FMT_lx, |
282 | riscv_int_regnames[i], env->gpr[i]); | |
dc5bd18f | 283 | if ((i & 3) == 3) { |
90c84c56 | 284 | qemu_fprintf(f, "\n"); |
dc5bd18f MC |
285 | } |
286 | } | |
86ea1880 RH |
287 | if (flags & CPU_DUMP_FPU) { |
288 | for (i = 0; i < 32; i++) { | |
90c84c56 MA |
289 | qemu_fprintf(f, " %s %016" PRIx64, |
290 | riscv_fpr_regnames[i], env->fpr[i]); | |
86ea1880 | 291 | if ((i & 3) == 3) { |
90c84c56 | 292 | qemu_fprintf(f, "\n"); |
86ea1880 | 293 | } |
dc5bd18f MC |
294 | } |
295 | } | |
296 | } | |
297 | ||
298 | static void riscv_cpu_set_pc(CPUState *cs, vaddr value) | |
299 | { | |
300 | RISCVCPU *cpu = RISCV_CPU(cs); | |
301 | CPURISCVState *env = &cpu->env; | |
302 | env->pc = value; | |
303 | } | |
304 | ||
305 | static void riscv_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) | |
306 | { | |
307 | RISCVCPU *cpu = RISCV_CPU(cs); | |
308 | CPURISCVState *env = &cpu->env; | |
309 | env->pc = tb->pc; | |
310 | } | |
311 | ||
312 | static bool riscv_cpu_has_work(CPUState *cs) | |
313 | { | |
314 | #ifndef CONFIG_USER_ONLY | |
315 | RISCVCPU *cpu = RISCV_CPU(cs); | |
316 | CPURISCVState *env = &cpu->env; | |
317 | /* | |
318 | * Definition of the WFI instruction requires it to ignore the privilege | |
319 | * mode and delegation registers, but respect individual enables | |
320 | */ | |
7ec5d303 | 321 | return (env->mip & env->mie) != 0; |
dc5bd18f MC |
322 | #else |
323 | return true; | |
324 | #endif | |
325 | } | |
326 | ||
327 | void restore_state_to_opc(CPURISCVState *env, TranslationBlock *tb, | |
328 | target_ulong *data) | |
329 | { | |
330 | env->pc = data[0]; | |
331 | } | |
332 | ||
333 | static void riscv_cpu_reset(CPUState *cs) | |
334 | { | |
335 | RISCVCPU *cpu = RISCV_CPU(cs); | |
336 | RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); | |
337 | CPURISCVState *env = &cpu->env; | |
338 | ||
339 | mcc->parent_reset(cs); | |
340 | #ifndef CONFIG_USER_ONLY | |
341 | env->priv = PRV_M; | |
342 | env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV); | |
343 | env->mcause = 0; | |
344 | env->pc = env->resetvec; | |
345 | #endif | |
346 | cs->exception_index = EXCP_NONE; | |
c13b169f | 347 | env->load_res = -1; |
dc5bd18f MC |
348 | set_default_nan_mode(1, &env->fp_status); |
349 | } | |
350 | ||
351 | static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info) | |
352 | { | |
353 | #if defined(TARGET_RISCV32) | |
354 | info->print_insn = print_insn_riscv32; | |
355 | #elif defined(TARGET_RISCV64) | |
356 | info->print_insn = print_insn_riscv64; | |
357 | #endif | |
358 | } | |
359 | ||
360 | static void riscv_cpu_realize(DeviceState *dev, Error **errp) | |
361 | { | |
362 | CPUState *cs = CPU(dev); | |
c4e95030 AF |
363 | RISCVCPU *cpu = RISCV_CPU(dev); |
364 | CPURISCVState *env = &cpu->env; | |
dc5bd18f | 365 | RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev); |
e3147506 | 366 | int priv_version = PRIV_VERSION_1_11_0; |
b55d7d34 | 367 | target_ulong target_misa = 0; |
dc5bd18f MC |
368 | Error *local_err = NULL; |
369 | ||
370 | cpu_exec_realizefn(cs, &local_err); | |
371 | if (local_err != NULL) { | |
372 | error_propagate(errp, local_err); | |
373 | return; | |
374 | } | |
375 | ||
c4e95030 | 376 | if (cpu->cfg.priv_spec) { |
e3147506 AF |
377 | if (!g_strcmp0(cpu->cfg.priv_spec, "v1.11.0")) { |
378 | priv_version = PRIV_VERSION_1_11_0; | |
379 | } else if (!g_strcmp0(cpu->cfg.priv_spec, "v1.10.0")) { | |
c4e95030 AF |
380 | priv_version = PRIV_VERSION_1_10_0; |
381 | } else if (!g_strcmp0(cpu->cfg.priv_spec, "v1.9.1")) { | |
382 | priv_version = PRIV_VERSION_1_09_1; | |
383 | } else { | |
384 | error_setg(errp, | |
385 | "Unsupported privilege spec version '%s'", | |
386 | cpu->cfg.priv_spec); | |
387 | return; | |
388 | } | |
389 | } | |
390 | ||
c9a73910 | 391 | set_priv_version(env, priv_version); |
c4e95030 AF |
392 | set_resetvec(env, DEFAULT_RSTVEC); |
393 | ||
394 | if (cpu->cfg.mmu) { | |
395 | set_feature(env, RISCV_FEATURE_MMU); | |
396 | } | |
397 | ||
398 | if (cpu->cfg.pmp) { | |
399 | set_feature(env, RISCV_FEATURE_PMP); | |
400 | } | |
401 | ||
b55d7d34 AF |
402 | /* If misa isn't set (rv32 and rv64 machines) set it here */ |
403 | if (!env->misa) { | |
404 | /* Do some ISA extension error checking */ | |
405 | if (cpu->cfg.ext_i && cpu->cfg.ext_e) { | |
406 | error_setg(errp, | |
407 | "I and E extensions are incompatible"); | |
408 | return; | |
409 | } | |
410 | ||
bdddd446 AF |
411 | if (!cpu->cfg.ext_i && !cpu->cfg.ext_e) { |
412 | error_setg(errp, | |
413 | "Either I or E extension must be set"); | |
414 | return; | |
415 | } | |
416 | ||
b55d7d34 AF |
417 | if (cpu->cfg.ext_g && !(cpu->cfg.ext_i & cpu->cfg.ext_m & |
418 | cpu->cfg.ext_a & cpu->cfg.ext_f & | |
419 | cpu->cfg.ext_d)) { | |
420 | warn_report("Setting G will also set IMAFD"); | |
421 | cpu->cfg.ext_i = true; | |
422 | cpu->cfg.ext_m = true; | |
423 | cpu->cfg.ext_a = true; | |
424 | cpu->cfg.ext_f = true; | |
425 | cpu->cfg.ext_d = true; | |
426 | } | |
427 | ||
428 | /* Set the ISA extensions, checks should have happened above */ | |
429 | if (cpu->cfg.ext_i) { | |
430 | target_misa |= RVI; | |
431 | } | |
432 | if (cpu->cfg.ext_e) { | |
433 | target_misa |= RVE; | |
434 | } | |
435 | if (cpu->cfg.ext_m) { | |
436 | target_misa |= RVM; | |
437 | } | |
438 | if (cpu->cfg.ext_a) { | |
439 | target_misa |= RVA; | |
440 | } | |
441 | if (cpu->cfg.ext_f) { | |
442 | target_misa |= RVF; | |
443 | } | |
444 | if (cpu->cfg.ext_d) { | |
445 | target_misa |= RVD; | |
446 | } | |
447 | if (cpu->cfg.ext_c) { | |
448 | target_misa |= RVC; | |
449 | } | |
450 | if (cpu->cfg.ext_s) { | |
451 | target_misa |= RVS; | |
452 | } | |
453 | if (cpu->cfg.ext_u) { | |
454 | target_misa |= RVU; | |
455 | } | |
c9eefe05 AF |
456 | if (cpu->cfg.ext_h) { |
457 | target_misa |= RVH; | |
458 | } | |
b55d7d34 AF |
459 | |
460 | set_misa(env, RVXLEN | target_misa); | |
461 | } | |
462 | ||
5371f5cd JW |
463 | riscv_cpu_register_gdb_regs_for_features(cs); |
464 | ||
dc5bd18f MC |
465 | qemu_init_vcpu(cs); |
466 | cpu_reset(cs); | |
467 | ||
468 | mcc->parent_realize(dev, errp); | |
469 | } | |
470 | ||
471 | static void riscv_cpu_init(Object *obj) | |
472 | { | |
dc5bd18f MC |
473 | RISCVCPU *cpu = RISCV_CPU(obj); |
474 | ||
7506ed90 | 475 | cpu_set_cpustate_pointers(cpu); |
dc5bd18f MC |
476 | } |
477 | ||
478 | static const VMStateDescription vmstate_riscv_cpu = { | |
479 | .name = "cpu", | |
480 | .unmigratable = 1, | |
481 | }; | |
482 | ||
c4e95030 | 483 | static Property riscv_cpu_properties[] = { |
b55d7d34 AF |
484 | DEFINE_PROP_BOOL("i", RISCVCPU, cfg.ext_i, true), |
485 | DEFINE_PROP_BOOL("e", RISCVCPU, cfg.ext_e, false), | |
486 | DEFINE_PROP_BOOL("g", RISCVCPU, cfg.ext_g, true), | |
487 | DEFINE_PROP_BOOL("m", RISCVCPU, cfg.ext_m, true), | |
488 | DEFINE_PROP_BOOL("a", RISCVCPU, cfg.ext_a, true), | |
489 | DEFINE_PROP_BOOL("f", RISCVCPU, cfg.ext_f, true), | |
490 | DEFINE_PROP_BOOL("d", RISCVCPU, cfg.ext_d, true), | |
491 | DEFINE_PROP_BOOL("c", RISCVCPU, cfg.ext_c, true), | |
492 | DEFINE_PROP_BOOL("s", RISCVCPU, cfg.ext_s, true), | |
493 | DEFINE_PROP_BOOL("u", RISCVCPU, cfg.ext_u, true), | |
c9eefe05 AF |
494 | /* This is experimental so mark with 'x-' */ |
495 | DEFINE_PROP_BOOL("x-h", RISCVCPU, cfg.ext_h, false), | |
0a13a5b8 | 496 | DEFINE_PROP_BOOL("Counters", RISCVCPU, cfg.ext_counters, true), |
50fba816 | 497 | DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true), |
591bddea | 498 | DEFINE_PROP_BOOL("Zicsr", RISCVCPU, cfg.ext_icsr, true), |
c4e95030 | 499 | DEFINE_PROP_STRING("priv_spec", RISCVCPU, cfg.priv_spec), |
c4e95030 AF |
500 | DEFINE_PROP_BOOL("mmu", RISCVCPU, cfg.mmu, true), |
501 | DEFINE_PROP_BOOL("pmp", RISCVCPU, cfg.pmp, true), | |
502 | DEFINE_PROP_END_OF_LIST(), | |
503 | }; | |
504 | ||
dc5bd18f MC |
505 | static void riscv_cpu_class_init(ObjectClass *c, void *data) |
506 | { | |
507 | RISCVCPUClass *mcc = RISCV_CPU_CLASS(c); | |
508 | CPUClass *cc = CPU_CLASS(c); | |
509 | DeviceClass *dc = DEVICE_CLASS(c); | |
510 | ||
41fbbba7 MZ |
511 | device_class_set_parent_realize(dc, riscv_cpu_realize, |
512 | &mcc->parent_realize); | |
dc5bd18f | 513 | |
bc9888f7 | 514 | cpu_class_set_parent_reset(cc, riscv_cpu_reset, &mcc->parent_reset); |
dc5bd18f MC |
515 | |
516 | cc->class_by_name = riscv_cpu_class_by_name; | |
517 | cc->has_work = riscv_cpu_has_work; | |
518 | cc->do_interrupt = riscv_cpu_do_interrupt; | |
519 | cc->cpu_exec_interrupt = riscv_cpu_exec_interrupt; | |
520 | cc->dump_state = riscv_cpu_dump_state; | |
521 | cc->set_pc = riscv_cpu_set_pc; | |
522 | cc->synchronize_from_tb = riscv_cpu_synchronize_from_tb; | |
523 | cc->gdb_read_register = riscv_cpu_gdb_read_register; | |
524 | cc->gdb_write_register = riscv_cpu_gdb_write_register; | |
5371f5cd JW |
525 | cc->gdb_num_core_regs = 33; |
526 | #if defined(TARGET_RISCV32) | |
527 | cc->gdb_core_xml_file = "riscv-32bit-cpu.xml"; | |
528 | #elif defined(TARGET_RISCV64) | |
529 | cc->gdb_core_xml_file = "riscv-64bit-cpu.xml"; | |
530 | #endif | |
dc5bd18f MC |
531 | cc->gdb_stop_before_watchpoint = true; |
532 | cc->disas_set_info = riscv_cpu_disas_set_info; | |
8a4ca3c1 | 533 | #ifndef CONFIG_USER_ONLY |
37207e12 | 534 | cc->do_transaction_failed = riscv_cpu_do_transaction_failed; |
dc5bd18f MC |
535 | cc->do_unaligned_access = riscv_cpu_do_unaligned_access; |
536 | cc->get_phys_page_debug = riscv_cpu_get_phys_page_debug; | |
537 | #endif | |
538 | #ifdef CONFIG_TCG | |
539 | cc->tcg_initialize = riscv_translate_init; | |
8a4ca3c1 | 540 | cc->tlb_fill = riscv_cpu_tlb_fill; |
dc5bd18f MC |
541 | #endif |
542 | /* For now, mark unmigratable: */ | |
543 | cc->vmsd = &vmstate_riscv_cpu; | |
4f67d30b | 544 | device_class_set_props(dc, riscv_cpu_properties); |
dc5bd18f MC |
545 | } |
546 | ||
dc5bd18f MC |
547 | char *riscv_isa_string(RISCVCPU *cpu) |
548 | { | |
549 | int i; | |
d1fd31f8 MC |
550 | const size_t maxlen = sizeof("rv128") + sizeof(riscv_exts) + 1; |
551 | char *isa_str = g_new(char, maxlen); | |
552 | char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", TARGET_LONG_BITS); | |
dc5bd18f MC |
553 | for (i = 0; i < sizeof(riscv_exts); i++) { |
554 | if (cpu->env.misa & RV(riscv_exts[i])) { | |
d1fd31f8 | 555 | *p++ = qemu_tolower(riscv_exts[i]); |
dc5bd18f MC |
556 | } |
557 | } | |
d1fd31f8 MC |
558 | *p = '\0'; |
559 | return isa_str; | |
dc5bd18f MC |
560 | } |
561 | ||
eab15862 | 562 | static gint riscv_cpu_list_compare(gconstpointer a, gconstpointer b) |
dc5bd18f | 563 | { |
eab15862 MC |
564 | ObjectClass *class_a = (ObjectClass *)a; |
565 | ObjectClass *class_b = (ObjectClass *)b; | |
566 | const char *name_a, *name_b; | |
dc5bd18f | 567 | |
eab15862 MC |
568 | name_a = object_class_get_name(class_a); |
569 | name_b = object_class_get_name(class_b); | |
570 | return strcmp(name_a, name_b); | |
dc5bd18f MC |
571 | } |
572 | ||
eab15862 | 573 | static void riscv_cpu_list_entry(gpointer data, gpointer user_data) |
dc5bd18f | 574 | { |
eab15862 MC |
575 | const char *typename = object_class_get_name(OBJECT_CLASS(data)); |
576 | int len = strlen(typename) - strlen(RISCV_CPU_TYPE_SUFFIX); | |
dc5bd18f | 577 | |
0442428a | 578 | qemu_printf("%.*s\n", len, typename); |
eab15862 | 579 | } |
dc5bd18f | 580 | |
0442428a | 581 | void riscv_cpu_list(void) |
eab15862 | 582 | { |
eab15862 MC |
583 | GSList *list; |
584 | ||
585 | list = object_class_get_list(TYPE_RISCV_CPU, false); | |
586 | list = g_slist_sort(list, riscv_cpu_list_compare); | |
0442428a | 587 | g_slist_foreach(list, riscv_cpu_list_entry, NULL); |
eab15862 | 588 | g_slist_free(list); |
dc5bd18f MC |
589 | } |
590 | ||
eab15862 MC |
591 | #define DEFINE_CPU(type_name, initfn) \ |
592 | { \ | |
593 | .name = type_name, \ | |
594 | .parent = TYPE_RISCV_CPU, \ | |
595 | .instance_init = initfn \ | |
596 | } | |
597 | ||
598 | static const TypeInfo riscv_cpu_type_infos[] = { | |
599 | { | |
600 | .name = TYPE_RISCV_CPU, | |
601 | .parent = TYPE_CPU, | |
602 | .instance_size = sizeof(RISCVCPU), | |
603 | .instance_init = riscv_cpu_init, | |
604 | .abstract = true, | |
605 | .class_size = sizeof(RISCVCPUClass), | |
606 | .class_init = riscv_cpu_class_init, | |
607 | }, | |
608 | DEFINE_CPU(TYPE_RISCV_CPU_ANY, riscv_any_cpu_init), | |
609 | #if defined(TARGET_RISCV32) | |
8903bf6e | 610 | DEFINE_CPU(TYPE_RISCV_CPU_BASE32, riscv_base32_cpu_init), |
eab15862 | 611 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E31, rv32imacu_nommu_cpu_init), |
c1fb65e6 AF |
612 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U34, rv32gcsu_priv1_10_0_cpu_init), |
613 | /* Depreacted */ | |
614 | DEFINE_CPU(TYPE_RISCV_CPU_RV32IMACU_NOMMU, rv32imacu_nommu_cpu_init), | |
615 | DEFINE_CPU(TYPE_RISCV_CPU_RV32GCSU_V1_09_1, rv32gcsu_priv1_09_1_cpu_init), | |
616 | DEFINE_CPU(TYPE_RISCV_CPU_RV32GCSU_V1_10_0, rv32gcsu_priv1_10_0_cpu_init) | |
eab15862 | 617 | #elif defined(TARGET_RISCV64) |
8903bf6e | 618 | DEFINE_CPU(TYPE_RISCV_CPU_BASE64, riscv_base64_cpu_init), |
eab15862 | 619 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_E51, rv64imacu_nommu_cpu_init), |
c1fb65e6 AF |
620 | DEFINE_CPU(TYPE_RISCV_CPU_SIFIVE_U54, rv64gcsu_priv1_10_0_cpu_init), |
621 | /* Deprecated */ | |
622 | DEFINE_CPU(TYPE_RISCV_CPU_RV64IMACU_NOMMU, rv64imacu_nommu_cpu_init), | |
623 | DEFINE_CPU(TYPE_RISCV_CPU_RV64GCSU_V1_09_1, rv64gcsu_priv1_09_1_cpu_init), | |
624 | DEFINE_CPU(TYPE_RISCV_CPU_RV64GCSU_V1_10_0, rv64gcsu_priv1_10_0_cpu_init) | |
eab15862 MC |
625 | #endif |
626 | }; | |
627 | ||
628 | DEFINE_TYPES(riscv_cpu_type_infos) |