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Merge tag 'pull-request-2024-06-12' of https://gitlab.com/thuth/qemu into staging
[qemu/kevin.git] / target / riscv / cpu.c
blob69a08e8c2c1e650ea4e483c97c7da84c54526eb1
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"
21 #include "qemu/qemu-print.h"
22 #include "qemu/ctype.h"
23 #include "qemu/log.h"
24 #include "cpu.h"
25 #include "cpu_vendorid.h"
26 #include "internals.h"
27 #include "exec/exec-all.h"
28 #include "qapi/error.h"
29 #include "qapi/visitor.h"
30 #include "qemu/error-report.h"
31 #include "hw/qdev-properties.h"
32 #include "hw/core/qdev-prop-internal.h"
33 #include "migration/vmstate.h"
34 #include "fpu/softfloat-helpers.h"
35 #include "sysemu/device_tree.h"
36 #include "sysemu/kvm.h"
37 #include "sysemu/tcg.h"
38 #include "kvm/kvm_riscv.h"
39 #include "tcg/tcg-cpu.h"
40 #include "tcg/tcg.h"
41
42 /* RISC-V CPU definitions */
43 static const char riscv_single_letter_exts[] = "IEMAFDQCBPVH";
44 const uint32_t misa_bits[] = {RVI, RVE, RVM, RVA, RVF, RVD, RVV,
45 RVC, RVS, RVU, RVH, RVJ, RVG, RVB, 0};
46
47 /*
48 * From vector_helper.c
49 * Note that vector data is stored in host-endian 64-bit chunks,
50 * so addressing bytes needs a host-endian fixup.
51 */
52 #if HOST_BIG_ENDIAN
53 #define BYTE(x) ((x) ^ 7)
54 #else
55 #define BYTE(x) (x)
56 #endif
57
58 bool riscv_cpu_is_32bit(RISCVCPU *cpu)
59 {
60 return riscv_cpu_mxl(&cpu->env) == MXL_RV32;
61 }
62
63 /* Hash that stores general user set numeric options */
64 static GHashTable *general_user_opts;
65
66 static void cpu_option_add_user_setting(const char *optname, uint32_t value)
67 {
68 g_hash_table_insert(general_user_opts, (gpointer)optname,
69 GUINT_TO_POINTER(value));
70 }
71
72 bool riscv_cpu_option_set(const char *optname)
73 {
74 return g_hash_table_contains(general_user_opts, optname);
75 }
76
77 #define ISA_EXT_DATA_ENTRY(_name, _min_ver, _prop) \
78 {#_name, _min_ver, CPU_CFG_OFFSET(_prop)}
79
80 /*
81 * Here are the ordering rules of extension naming defined by RISC-V
82 * specification :
83 * 1. All extensions should be separated from other multi-letter extensions
84 * by an underscore.
85 * 2. The first letter following the 'Z' conventionally indicates the most
86 * closely related alphabetical extension category, IMAFDQLCBKJTPVH.
87 * If multiple 'Z' extensions are named, they should be ordered first
88 * by category, then alphabetically within a category.
89 * 3. Standard supervisor-level extensions (starts with 'S') should be
90 * listed after standard unprivileged extensions. If multiple
91 * supervisor-level extensions are listed, they should be ordered
92 * alphabetically.
93 * 4. Non-standard extensions (starts with 'X') must be listed after all
94 * standard extensions. They must be separated from other multi-letter
95 * extensions by an underscore.
96 *
97 * Single letter extensions are checked in riscv_cpu_validate_misa_priv()
98 * instead.
99 */
100 const RISCVIsaExtData isa_edata_arr[] = {
101 ISA_EXT_DATA_ENTRY(zic64b, PRIV_VERSION_1_12_0, ext_zic64b),
102 ISA_EXT_DATA_ENTRY(zicbom, PRIV_VERSION_1_12_0, ext_zicbom),
103 ISA_EXT_DATA_ENTRY(zicbop, PRIV_VERSION_1_12_0, ext_zicbop),
104 ISA_EXT_DATA_ENTRY(zicboz, PRIV_VERSION_1_12_0, ext_zicboz),
105 ISA_EXT_DATA_ENTRY(ziccamoa, PRIV_VERSION_1_11_0, has_priv_1_11),
106 ISA_EXT_DATA_ENTRY(ziccif, PRIV_VERSION_1_11_0, has_priv_1_11),
107 ISA_EXT_DATA_ENTRY(zicclsm, PRIV_VERSION_1_11_0, has_priv_1_11),
108 ISA_EXT_DATA_ENTRY(ziccrse, PRIV_VERSION_1_11_0, has_priv_1_11),
109 ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond),
110 ISA_EXT_DATA_ENTRY(zicntr, PRIV_VERSION_1_12_0, ext_zicntr),
111 ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_zicsr),
112 ISA_EXT_DATA_ENTRY(zifencei, PRIV_VERSION_1_10_0, ext_zifencei),
113 ISA_EXT_DATA_ENTRY(zihintntl, PRIV_VERSION_1_10_0, ext_zihintntl),
114 ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause),
115 ISA_EXT_DATA_ENTRY(zihpm, PRIV_VERSION_1_12_0, ext_zihpm),
116 ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul),
117 ISA_EXT_DATA_ENTRY(za64rs, PRIV_VERSION_1_12_0, has_priv_1_11),
118 ISA_EXT_DATA_ENTRY(zaamo, PRIV_VERSION_1_12_0, ext_zaamo),
119 ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas),
120 ISA_EXT_DATA_ENTRY(zalrsc, PRIV_VERSION_1_12_0, ext_zalrsc),
121 ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs),
122 ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa),
123 ISA_EXT_DATA_ENTRY(zfbfmin, PRIV_VERSION_1_12_0, ext_zfbfmin),
124 ISA_EXT_DATA_ENTRY(zfh, PRIV_VERSION_1_11_0, ext_zfh),
125 ISA_EXT_DATA_ENTRY(zfhmin, PRIV_VERSION_1_11_0, ext_zfhmin),
126 ISA_EXT_DATA_ENTRY(zfinx, PRIV_VERSION_1_12_0, ext_zfinx),
127 ISA_EXT_DATA_ENTRY(zdinx, PRIV_VERSION_1_12_0, ext_zdinx),
128 ISA_EXT_DATA_ENTRY(zca, PRIV_VERSION_1_12_0, ext_zca),
129 ISA_EXT_DATA_ENTRY(zcb, PRIV_VERSION_1_12_0, ext_zcb),
130 ISA_EXT_DATA_ENTRY(zcf, PRIV_VERSION_1_12_0, ext_zcf),
131 ISA_EXT_DATA_ENTRY(zcd, PRIV_VERSION_1_12_0, ext_zcd),
132 ISA_EXT_DATA_ENTRY(zce, PRIV_VERSION_1_12_0, ext_zce),
133 ISA_EXT_DATA_ENTRY(zcmp, PRIV_VERSION_1_12_0, ext_zcmp),
134 ISA_EXT_DATA_ENTRY(zcmt, PRIV_VERSION_1_12_0, ext_zcmt),
135 ISA_EXT_DATA_ENTRY(zba, PRIV_VERSION_1_12_0, ext_zba),
136 ISA_EXT_DATA_ENTRY(zbb, PRIV_VERSION_1_12_0, ext_zbb),
137 ISA_EXT_DATA_ENTRY(zbc, PRIV_VERSION_1_12_0, ext_zbc),
138 ISA_EXT_DATA_ENTRY(zbkb, PRIV_VERSION_1_12_0, ext_zbkb),
139 ISA_EXT_DATA_ENTRY(zbkc, PRIV_VERSION_1_12_0, ext_zbkc),
140 ISA_EXT_DATA_ENTRY(zbkx, PRIV_VERSION_1_12_0, ext_zbkx),
141 ISA_EXT_DATA_ENTRY(zbs, PRIV_VERSION_1_12_0, ext_zbs),
142 ISA_EXT_DATA_ENTRY(zk, PRIV_VERSION_1_12_0, ext_zk),
143 ISA_EXT_DATA_ENTRY(zkn, PRIV_VERSION_1_12_0, ext_zkn),
144 ISA_EXT_DATA_ENTRY(zknd, PRIV_VERSION_1_12_0, ext_zknd),
145 ISA_EXT_DATA_ENTRY(zkne, PRIV_VERSION_1_12_0, ext_zkne),
146 ISA_EXT_DATA_ENTRY(zknh, PRIV_VERSION_1_12_0, ext_zknh),
147 ISA_EXT_DATA_ENTRY(zkr, PRIV_VERSION_1_12_0, ext_zkr),
148 ISA_EXT_DATA_ENTRY(zks, PRIV_VERSION_1_12_0, ext_zks),
149 ISA_EXT_DATA_ENTRY(zksed, PRIV_VERSION_1_12_0, ext_zksed),
150 ISA_EXT_DATA_ENTRY(zksh, PRIV_VERSION_1_12_0, ext_zksh),
151 ISA_EXT_DATA_ENTRY(zkt, PRIV_VERSION_1_12_0, ext_zkt),
152 ISA_EXT_DATA_ENTRY(ztso, PRIV_VERSION_1_12_0, ext_ztso),
153 ISA_EXT_DATA_ENTRY(zvbb, PRIV_VERSION_1_12_0, ext_zvbb),
154 ISA_EXT_DATA_ENTRY(zvbc, PRIV_VERSION_1_12_0, ext_zvbc),
155 ISA_EXT_DATA_ENTRY(zve32f, PRIV_VERSION_1_10_0, ext_zve32f),
156 ISA_EXT_DATA_ENTRY(zve32x, PRIV_VERSION_1_10_0, ext_zve32x),
157 ISA_EXT_DATA_ENTRY(zve64f, PRIV_VERSION_1_10_0, ext_zve64f),
158 ISA_EXT_DATA_ENTRY(zve64d, PRIV_VERSION_1_10_0, ext_zve64d),
159 ISA_EXT_DATA_ENTRY(zve64x, PRIV_VERSION_1_10_0, ext_zve64x),
160 ISA_EXT_DATA_ENTRY(zvfbfmin, PRIV_VERSION_1_12_0, ext_zvfbfmin),
161 ISA_EXT_DATA_ENTRY(zvfbfwma, PRIV_VERSION_1_12_0, ext_zvfbfwma),
162 ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh),
163 ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin),
164 ISA_EXT_DATA_ENTRY(zvkb, PRIV_VERSION_1_12_0, ext_zvkb),
165 ISA_EXT_DATA_ENTRY(zvkg, PRIV_VERSION_1_12_0, ext_zvkg),
166 ISA_EXT_DATA_ENTRY(zvkn, PRIV_VERSION_1_12_0, ext_zvkn),
167 ISA_EXT_DATA_ENTRY(zvknc, PRIV_VERSION_1_12_0, ext_zvknc),
168 ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned),
169 ISA_EXT_DATA_ENTRY(zvkng, PRIV_VERSION_1_12_0, ext_zvkng),
170 ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha),
171 ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb),
172 ISA_EXT_DATA_ENTRY(zvks, PRIV_VERSION_1_12_0, ext_zvks),
173 ISA_EXT_DATA_ENTRY(zvksc, PRIV_VERSION_1_12_0, ext_zvksc),
174 ISA_EXT_DATA_ENTRY(zvksed, PRIV_VERSION_1_12_0, ext_zvksed),
175 ISA_EXT_DATA_ENTRY(zvksg, PRIV_VERSION_1_12_0, ext_zvksg),
176 ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh),
177 ISA_EXT_DATA_ENTRY(zvkt, PRIV_VERSION_1_12_0, ext_zvkt),
178 ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx),
179 ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin),
180 ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia),
181 ISA_EXT_DATA_ENTRY(smepmp, PRIV_VERSION_1_12_0, ext_smepmp),
182 ISA_EXT_DATA_ENTRY(smstateen, PRIV_VERSION_1_12_0, ext_smstateen),
183 ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia),
184 ISA_EXT_DATA_ENTRY(ssccptr, PRIV_VERSION_1_11_0, has_priv_1_11),
185 ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf),
186 ISA_EXT_DATA_ENTRY(sscounterenw, PRIV_VERSION_1_12_0, has_priv_1_12),
187 ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc),
188 ISA_EXT_DATA_ENTRY(sstvala, PRIV_VERSION_1_12_0, has_priv_1_12),
189 ISA_EXT_DATA_ENTRY(sstvecd, PRIV_VERSION_1_12_0, has_priv_1_12),
190 ISA_EXT_DATA_ENTRY(svade, PRIV_VERSION_1_11_0, ext_svade),
191 ISA_EXT_DATA_ENTRY(svadu, PRIV_VERSION_1_12_0, ext_svadu),
192 ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval),
193 ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot),
194 ISA_EXT_DATA_ENTRY(svpbmt, PRIV_VERSION_1_12_0, ext_svpbmt),
195 ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba),
196 ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb),
197 ISA_EXT_DATA_ENTRY(xtheadbs, PRIV_VERSION_1_11_0, ext_xtheadbs),
198 ISA_EXT_DATA_ENTRY(xtheadcmo, PRIV_VERSION_1_11_0, ext_xtheadcmo),
199 ISA_EXT_DATA_ENTRY(xtheadcondmov, PRIV_VERSION_1_11_0, ext_xtheadcondmov),
200 ISA_EXT_DATA_ENTRY(xtheadfmemidx, PRIV_VERSION_1_11_0, ext_xtheadfmemidx),
201 ISA_EXT_DATA_ENTRY(xtheadfmv, PRIV_VERSION_1_11_0, ext_xtheadfmv),
202 ISA_EXT_DATA_ENTRY(xtheadmac, PRIV_VERSION_1_11_0, ext_xtheadmac),
203 ISA_EXT_DATA_ENTRY(xtheadmemidx, PRIV_VERSION_1_11_0, ext_xtheadmemidx),
204 ISA_EXT_DATA_ENTRY(xtheadmempair, PRIV_VERSION_1_11_0, ext_xtheadmempair),
205 ISA_EXT_DATA_ENTRY(xtheadsync, PRIV_VERSION_1_11_0, ext_xtheadsync),
206 ISA_EXT_DATA_ENTRY(xventanacondops, PRIV_VERSION_1_12_0, ext_XVentanaCondOps),
207
208 DEFINE_PROP_END_OF_LIST(),
209 };
210
211 bool isa_ext_is_enabled(RISCVCPU *cpu, uint32_t ext_offset)
212 {
213 bool *ext_enabled = (void *)&cpu->cfg + ext_offset;
214
215 return *ext_enabled;
216 }
217
218 void isa_ext_update_enabled(RISCVCPU *cpu, uint32_t ext_offset, bool en)
219 {
220 bool *ext_enabled = (void *)&cpu->cfg + ext_offset;
221
222 *ext_enabled = en;
223 }
224
225 bool riscv_cpu_is_vendor(Object *cpu_obj)
226 {
227 return object_dynamic_cast(cpu_obj, TYPE_RISCV_VENDOR_CPU) != NULL;
228 }
229
230 const char * const riscv_int_regnames[] = {
231 "x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1",
232 "x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3",
233 "x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4",
234 "x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11",
235 "x28/t3", "x29/t4", "x30/t5", "x31/t6"
236 };
237
238 const char * const riscv_int_regnamesh[] = {
239 "x0h/zeroh", "x1h/rah", "x2h/sph", "x3h/gph", "x4h/tph", "x5h/t0h",
240 "x6h/t1h", "x7h/t2h", "x8h/s0h", "x9h/s1h", "x10h/a0h", "x11h/a1h",
241 "x12h/a2h", "x13h/a3h", "x14h/a4h", "x15h/a5h", "x16h/a6h", "x17h/a7h",
242 "x18h/s2h", "x19h/s3h", "x20h/s4h", "x21h/s5h", "x22h/s6h", "x23h/s7h",
243 "x24h/s8h", "x25h/s9h", "x26h/s10h", "x27h/s11h", "x28h/t3h", "x29h/t4h",
244 "x30h/t5h", "x31h/t6h"
245 };
246
247 const char * const riscv_fpr_regnames[] = {
248 "f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5",
249 "f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1",
250 "f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7",
251 "f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7",
252 "f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9",
253 "f30/ft10", "f31/ft11"
254 };
255
256 const char * const riscv_rvv_regnames[] = {
257 "v0", "v1", "v2", "v3", "v4", "v5", "v6",
258 "v7", "v8", "v9", "v10", "v11", "v12", "v13",
259 "v14", "v15", "v16", "v17", "v18", "v19", "v20",
260 "v21", "v22", "v23", "v24", "v25", "v26", "v27",
261 "v28", "v29", "v30", "v31"
262 };
263
264 static const char * const riscv_excp_names[] = {
265 "misaligned_fetch",
266 "fault_fetch",
267 "illegal_instruction",
268 "breakpoint",
269 "misaligned_load",
270 "fault_load",
271 "misaligned_store",
272 "fault_store",
273 "user_ecall",
274 "supervisor_ecall",
275 "hypervisor_ecall",
276 "machine_ecall",
277 "exec_page_fault",
278 "load_page_fault",
279 "reserved",
280 "store_page_fault",
281 "reserved",
282 "reserved",
283 "reserved",
284 "reserved",
285 "guest_exec_page_fault",
286 "guest_load_page_fault",
287 "reserved",
288 "guest_store_page_fault",
289 };
290
291 static const char * const riscv_intr_names[] = {
292 "u_software",
293 "s_software",
294 "vs_software",
295 "m_software",
296 "u_timer",
297 "s_timer",
298 "vs_timer",
299 "m_timer",
300 "u_external",
301 "s_external",
302 "vs_external",
303 "m_external",
304 "reserved",
305 "reserved",
306 "reserved",
307 "reserved"
308 };
309
310 const char *riscv_cpu_get_trap_name(target_ulong cause, bool async)
311 {
312 if (async) {
313 return (cause < ARRAY_SIZE(riscv_intr_names)) ?
314 riscv_intr_names[cause] : "(unknown)";
315 } else {
316 return (cause < ARRAY_SIZE(riscv_excp_names)) ?
317 riscv_excp_names[cause] : "(unknown)";
318 }
319 }
320
321 void riscv_cpu_set_misa_ext(CPURISCVState *env, uint32_t ext)
322 {
323 env->misa_ext_mask = env->misa_ext = ext;
324 }
325
326 int riscv_cpu_max_xlen(RISCVCPUClass *mcc)
327 {
328 return 16 << mcc->misa_mxl_max;
329 }
330
331 #ifndef CONFIG_USER_ONLY
332 static uint8_t satp_mode_from_str(const char *satp_mode_str)
333 {
334 if (!strncmp(satp_mode_str, "mbare", 5)) {
335 return VM_1_10_MBARE;
336 }
337
338 if (!strncmp(satp_mode_str, "sv32", 4)) {
339 return VM_1_10_SV32;
340 }
341
342 if (!strncmp(satp_mode_str, "sv39", 4)) {
343 return VM_1_10_SV39;
344 }
345
346 if (!strncmp(satp_mode_str, "sv48", 4)) {
347 return VM_1_10_SV48;
348 }
349
350 if (!strncmp(satp_mode_str, "sv57", 4)) {
351 return VM_1_10_SV57;
352 }
353
354 if (!strncmp(satp_mode_str, "sv64", 4)) {
355 return VM_1_10_SV64;
356 }
357
358 g_assert_not_reached();
359 }
360
361 uint8_t satp_mode_max_from_map(uint32_t map)
362 {
363 /*
364 * 'map = 0' will make us return (31 - 32), which C will
365 * happily overflow to UINT_MAX. There's no good result to
366 * return if 'map = 0' (e.g. returning 0 will be ambiguous
367 * with the result for 'map = 1').
368 *
369 * Assert out if map = 0. Callers will have to deal with
370 * it outside of this function.
371 */
372 g_assert(map > 0);
373
374 /* map here has at least one bit set, so no problem with clz */
375 return 31 - __builtin_clz(map);
376 }
377
378 const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit)
379 {
380 if (is_32_bit) {
381 switch (satp_mode) {
382 case VM_1_10_SV32:
383 return "sv32";
384 case VM_1_10_MBARE:
385 return "none";
386 }
387 } else {
388 switch (satp_mode) {
389 case VM_1_10_SV64:
390 return "sv64";
391 case VM_1_10_SV57:
392 return "sv57";
393 case VM_1_10_SV48:
394 return "sv48";
395 case VM_1_10_SV39:
396 return "sv39";
397 case VM_1_10_MBARE:
398 return "none";
399 }
400 }
401
402 g_assert_not_reached();
403 }
404
405 static void set_satp_mode_max_supported(RISCVCPU *cpu,
406 uint8_t satp_mode)
407 {
408 bool rv32 = riscv_cpu_mxl(&cpu->env) == MXL_RV32;
409 const bool *valid_vm = rv32 ? valid_vm_1_10_32 : valid_vm_1_10_64;
410
411 for (int i = 0; i <= satp_mode; ++i) {
412 if (valid_vm[i]) {
413 cpu->cfg.satp_mode.supported |= (1 << i);
414 }
415 }
416 }
417
418 /* Set the satp mode to the max supported */
419 static void set_satp_mode_default_map(RISCVCPU *cpu)
420 {
421 /*
422 * Bare CPUs do not default to the max available.
423 * Users must set a valid satp_mode in the command
424 * line.
425 */
426 if (object_dynamic_cast(OBJECT(cpu), TYPE_RISCV_BARE_CPU) != NULL) {
427 warn_report("No satp mode set. Defaulting to 'bare'");
428 cpu->cfg.satp_mode.map = (1 << VM_1_10_MBARE);
429 return;
430 }
431
432 cpu->cfg.satp_mode.map = cpu->cfg.satp_mode.supported;
433 }
434 #endif
435
436 static void riscv_any_cpu_init(Object *obj)
437 {
438 RISCVCPU *cpu = RISCV_CPU(obj);
439 CPURISCVState *env = &cpu->env;
440 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVU);
441
442 #ifndef CONFIG_USER_ONLY
443 set_satp_mode_max_supported(RISCV_CPU(obj),
444 riscv_cpu_mxl(&RISCV_CPU(obj)->env) == MXL_RV32 ?
445 VM_1_10_SV32 : VM_1_10_SV57);
446 #endif
447
448 env->priv_ver = PRIV_VERSION_LATEST;
449
450 /* inherited from parent obj via riscv_cpu_init() */
451 cpu->cfg.ext_zifencei = true;
452 cpu->cfg.ext_zicsr = true;
453 cpu->cfg.mmu = true;
454 cpu->cfg.pmp = true;
455 }
456
457 static void riscv_max_cpu_init(Object *obj)
458 {
459 RISCVCPU *cpu = RISCV_CPU(obj);
460 CPURISCVState *env = &cpu->env;
461
462 cpu->cfg.mmu = true;
463 cpu->cfg.pmp = true;
464
465 env->priv_ver = PRIV_VERSION_LATEST;
466 #ifndef CONFIG_USER_ONLY
467 #ifdef TARGET_RISCV32
468 set_satp_mode_max_supported(cpu, VM_1_10_SV32);
469 #else
470 set_satp_mode_max_supported(cpu, VM_1_10_SV57);
471 #endif
472 #endif
473 }
474
475 #if defined(TARGET_RISCV64)
476 static void rv64_base_cpu_init(Object *obj)
477 {
478 RISCVCPU *cpu = RISCV_CPU(obj);
479 CPURISCVState *env = &cpu->env;
480
481 cpu->cfg.mmu = true;
482 cpu->cfg.pmp = true;
483
484 /* Set latest version of privileged specification */
485 env->priv_ver = PRIV_VERSION_LATEST;
486 #ifndef CONFIG_USER_ONLY
487 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57);
488 #endif
489 }
490
491 static void rv64_sifive_u_cpu_init(Object *obj)
492 {
493 RISCVCPU *cpu = RISCV_CPU(obj);
494 CPURISCVState *env = &cpu->env;
495 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
496 env->priv_ver = PRIV_VERSION_1_10_0;
497 #ifndef CONFIG_USER_ONLY
498 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV39);
499 #endif
500
501 /* inherited from parent obj via riscv_cpu_init() */
502 cpu->cfg.ext_zifencei = true;
503 cpu->cfg.ext_zicsr = true;
504 cpu->cfg.mmu = true;
505 cpu->cfg.pmp = true;
506 }
507
508 static void rv64_sifive_e_cpu_init(Object *obj)
509 {
510 CPURISCVState *env = &RISCV_CPU(obj)->env;
511 RISCVCPU *cpu = RISCV_CPU(obj);
512
513 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVC | RVU);
514 env->priv_ver = PRIV_VERSION_1_10_0;
515 #ifndef CONFIG_USER_ONLY
516 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
517 #endif
518
519 /* inherited from parent obj via riscv_cpu_init() */
520 cpu->cfg.ext_zifencei = true;
521 cpu->cfg.ext_zicsr = true;
522 cpu->cfg.pmp = true;
523 }
524
525 static void rv64_thead_c906_cpu_init(Object *obj)
526 {
527 CPURISCVState *env = &RISCV_CPU(obj)->env;
528 RISCVCPU *cpu = RISCV_CPU(obj);
529
530 riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU);
531 env->priv_ver = PRIV_VERSION_1_11_0;
532
533 cpu->cfg.ext_zfa = true;
534 cpu->cfg.ext_zfh = true;
535 cpu->cfg.mmu = true;
536 cpu->cfg.ext_xtheadba = true;
537 cpu->cfg.ext_xtheadbb = true;
538 cpu->cfg.ext_xtheadbs = true;
539 cpu->cfg.ext_xtheadcmo = true;
540 cpu->cfg.ext_xtheadcondmov = true;
541 cpu->cfg.ext_xtheadfmemidx = true;
542 cpu->cfg.ext_xtheadmac = true;
543 cpu->cfg.ext_xtheadmemidx = true;
544 cpu->cfg.ext_xtheadmempair = true;
545 cpu->cfg.ext_xtheadsync = true;
546
547 cpu->cfg.mvendorid = THEAD_VENDOR_ID;
548 #ifndef CONFIG_USER_ONLY
549 set_satp_mode_max_supported(cpu, VM_1_10_SV39);
550 th_register_custom_csrs(cpu);
551 #endif
552
553 /* inherited from parent obj via riscv_cpu_init() */
554 cpu->cfg.pmp = true;
555 }
556
557 static void rv64_veyron_v1_cpu_init(Object *obj)
558 {
559 CPURISCVState *env = &RISCV_CPU(obj)->env;
560 RISCVCPU *cpu = RISCV_CPU(obj);
561
562 riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH);
563 env->priv_ver = PRIV_VERSION_1_12_0;
564
565 /* Enable ISA extensions */
566 cpu->cfg.mmu = true;
567 cpu->cfg.ext_zifencei = true;
568 cpu->cfg.ext_zicsr = true;
569 cpu->cfg.pmp = true;
570 cpu->cfg.ext_zicbom = true;
571 cpu->cfg.cbom_blocksize = 64;
572 cpu->cfg.cboz_blocksize = 64;
573 cpu->cfg.ext_zicboz = true;
574 cpu->cfg.ext_smaia = true;
575 cpu->cfg.ext_ssaia = true;
576 cpu->cfg.ext_sscofpmf = true;
577 cpu->cfg.ext_sstc = true;
578 cpu->cfg.ext_svinval = true;
579 cpu->cfg.ext_svnapot = true;
580 cpu->cfg.ext_svpbmt = true;
581 cpu->cfg.ext_smstateen = true;
582 cpu->cfg.ext_zba = true;
583 cpu->cfg.ext_zbb = true;
584 cpu->cfg.ext_zbc = true;
585 cpu->cfg.ext_zbs = true;
586 cpu->cfg.ext_XVentanaCondOps = true;
587
588 cpu->cfg.mvendorid = VEYRON_V1_MVENDORID;
589 cpu->cfg.marchid = VEYRON_V1_MARCHID;
590 cpu->cfg.mimpid = VEYRON_V1_MIMPID;
591
592 #ifndef CONFIG_USER_ONLY
593 set_satp_mode_max_supported(cpu, VM_1_10_SV48);
594 #endif
595 }
596
597 #ifdef CONFIG_TCG
598 static void rv128_base_cpu_init(Object *obj)
599 {
600 RISCVCPU *cpu = RISCV_CPU(obj);
601 CPURISCVState *env = &cpu->env;
602
603 if (qemu_tcg_mttcg_enabled()) {
604 /* Missing 128-bit aligned atomics */
605 error_report("128-bit RISC-V currently does not work with Multi "
606 "Threaded TCG. Please use: -accel tcg,thread=single");
607 exit(EXIT_FAILURE);
608 }
609
610 cpu->cfg.mmu = true;
611 cpu->cfg.pmp = true;
612
613 /* Set latest version of privileged specification */
614 env->priv_ver = PRIV_VERSION_LATEST;
615 #ifndef CONFIG_USER_ONLY
616 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57);
617 #endif
618 }
619 #endif /* CONFIG_TCG */
620
621 static void rv64i_bare_cpu_init(Object *obj)
622 {
623 CPURISCVState *env = &RISCV_CPU(obj)->env;
624 riscv_cpu_set_misa_ext(env, RVI);
625 }
626
627 static void rv64e_bare_cpu_init(Object *obj)
628 {
629 CPURISCVState *env = &RISCV_CPU(obj)->env;
630 riscv_cpu_set_misa_ext(env, RVE);
631 }
632
633 #else /* !TARGET_RISCV64 */
634
635 static void rv32_base_cpu_init(Object *obj)
636 {
637 RISCVCPU *cpu = RISCV_CPU(obj);
638 CPURISCVState *env = &cpu->env;
639
640 cpu->cfg.mmu = true;
641 cpu->cfg.pmp = true;
642
643 /* Set latest version of privileged specification */
644 env->priv_ver = PRIV_VERSION_LATEST;
645 #ifndef CONFIG_USER_ONLY
646 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32);
647 #endif
648 }
649
650 static void rv32_sifive_u_cpu_init(Object *obj)
651 {
652 RISCVCPU *cpu = RISCV_CPU(obj);
653 CPURISCVState *env = &cpu->env;
654 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
655 env->priv_ver = PRIV_VERSION_1_10_0;
656 #ifndef CONFIG_USER_ONLY
657 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32);
658 #endif
659
660 /* inherited from parent obj via riscv_cpu_init() */
661 cpu->cfg.ext_zifencei = true;
662 cpu->cfg.ext_zicsr = true;
663 cpu->cfg.mmu = true;
664 cpu->cfg.pmp = true;
665 }
666
667 static void rv32_sifive_e_cpu_init(Object *obj)
668 {
669 CPURISCVState *env = &RISCV_CPU(obj)->env;
670 RISCVCPU *cpu = RISCV_CPU(obj);
671
672 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVC | RVU);
673 env->priv_ver = PRIV_VERSION_1_10_0;
674 #ifndef CONFIG_USER_ONLY
675 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
676 #endif
677
678 /* inherited from parent obj via riscv_cpu_init() */
679 cpu->cfg.ext_zifencei = true;
680 cpu->cfg.ext_zicsr = true;
681 cpu->cfg.pmp = true;
682 }
683
684 static void rv32_ibex_cpu_init(Object *obj)
685 {
686 CPURISCVState *env = &RISCV_CPU(obj)->env;
687 RISCVCPU *cpu = RISCV_CPU(obj);
688
689 riscv_cpu_set_misa_ext(env, RVI | RVM | RVC | RVU);
690 env->priv_ver = PRIV_VERSION_1_12_0;
691 #ifndef CONFIG_USER_ONLY
692 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
693 #endif
694 /* inherited from parent obj via riscv_cpu_init() */
695 cpu->cfg.ext_zifencei = true;
696 cpu->cfg.ext_zicsr = true;
697 cpu->cfg.pmp = true;
698 cpu->cfg.ext_smepmp = true;
699 }
700
701 static void rv32_imafcu_nommu_cpu_init(Object *obj)
702 {
703 CPURISCVState *env = &RISCV_CPU(obj)->env;
704 RISCVCPU *cpu = RISCV_CPU(obj);
705
706 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVC | RVU);
707 env->priv_ver = PRIV_VERSION_1_10_0;
708 #ifndef CONFIG_USER_ONLY
709 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
710 #endif
711
712 /* inherited from parent obj via riscv_cpu_init() */
713 cpu->cfg.ext_zifencei = true;
714 cpu->cfg.ext_zicsr = true;
715 cpu->cfg.pmp = true;
716 }
717
718 static void rv32i_bare_cpu_init(Object *obj)
719 {
720 CPURISCVState *env = &RISCV_CPU(obj)->env;
721 riscv_cpu_set_misa_ext(env, RVI);
722 }
723
724 static void rv32e_bare_cpu_init(Object *obj)
725 {
726 CPURISCVState *env = &RISCV_CPU(obj)->env;
727 riscv_cpu_set_misa_ext(env, RVE);
728 }
729 #endif
730
731 static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model)
732 {
733 ObjectClass *oc;
734 char *typename;
735 char **cpuname;
736
737 cpuname = g_strsplit(cpu_model, ",", 1);
738 typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]);
739 oc = object_class_by_name(typename);
740 g_strfreev(cpuname);
741 g_free(typename);
742
743 return oc;
744 }
745
746 char *riscv_cpu_get_name(RISCVCPU *cpu)
747 {
748 RISCVCPUClass *rcc = RISCV_CPU_GET_CLASS(cpu);
749 const char *typename = object_class_get_name(OBJECT_CLASS(rcc));
750
751 g_assert(g_str_has_suffix(typename, RISCV_CPU_TYPE_SUFFIX));
752
753 return cpu_model_from_type(typename);
754 }
755
756 static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags)
757 {
758 RISCVCPU *cpu = RISCV_CPU(cs);
759 CPURISCVState *env = &cpu->env;
760 int i, j;
761 uint8_t *p;
762
763 #if !defined(CONFIG_USER_ONLY)
764 if (riscv_has_ext(env, RVH)) {
765 qemu_fprintf(f, " %s %d\n", "V = ", env->virt_enabled);
766 }
767 #endif
768 qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc);
769 #ifndef CONFIG_USER_ONLY
770 {
771 static const int dump_csrs[] = {
772 CSR_MHARTID,
773 CSR_MSTATUS,
774 CSR_MSTATUSH,
775 /*
776 * CSR_SSTATUS is intentionally omitted here as its value
777 * can be figured out by looking at CSR_MSTATUS
778 */
779 CSR_HSTATUS,
780 CSR_VSSTATUS,
781 CSR_MIP,
782 CSR_MIE,
783 CSR_MIDELEG,
784 CSR_HIDELEG,
785 CSR_MEDELEG,
786 CSR_HEDELEG,
787 CSR_MTVEC,
788 CSR_STVEC,
789 CSR_VSTVEC,
790 CSR_MEPC,
791 CSR_SEPC,
792 CSR_VSEPC,
793 CSR_MCAUSE,
794 CSR_SCAUSE,
795 CSR_VSCAUSE,
796 CSR_MTVAL,
797 CSR_STVAL,
798 CSR_HTVAL,
799 CSR_MTVAL2,
800 CSR_MSCRATCH,
801 CSR_SSCRATCH,
802 CSR_SATP,
803 CSR_MMTE,
804 CSR_UPMBASE,
805 CSR_UPMMASK,
806 CSR_SPMBASE,
807 CSR_SPMMASK,
808 CSR_MPMBASE,
809 CSR_MPMMASK,
810 };
811
812 for (i = 0; i < ARRAY_SIZE(dump_csrs); ++i) {
813 int csrno = dump_csrs[i];
814 target_ulong val = 0;
815 RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0);
816
817 /*
818 * Rely on the smode, hmode, etc, predicates within csr.c
819 * to do the filtering of the registers that are present.
820 */
821 if (res == RISCV_EXCP_NONE) {
822 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n",
823 csr_ops[csrno].name, val);
824 }
825 }
826 }
827 #endif
828
829 for (i = 0; i < 32; i++) {
830 qemu_fprintf(f, " %-8s " TARGET_FMT_lx,
831 riscv_int_regnames[i], env->gpr[i]);
832 if ((i & 3) == 3) {
833 qemu_fprintf(f, "\n");
834 }
835 }
836 if (flags & CPU_DUMP_FPU) {
837 for (i = 0; i < 32; i++) {
838 qemu_fprintf(f, " %-8s %016" PRIx64,
839 riscv_fpr_regnames[i], env->fpr[i]);
840 if ((i & 3) == 3) {
841 qemu_fprintf(f, "\n");
842 }
843 }
844 }
845 if (riscv_has_ext(env, RVV) && (flags & CPU_DUMP_VPU)) {
846 static const int dump_rvv_csrs[] = {
847 CSR_VSTART,
848 CSR_VXSAT,
849 CSR_VXRM,
850 CSR_VCSR,
851 CSR_VL,
852 CSR_VTYPE,
853 CSR_VLENB,
854 };
855 for (i = 0; i < ARRAY_SIZE(dump_rvv_csrs); ++i) {
856 int csrno = dump_rvv_csrs[i];
857 target_ulong val = 0;
858 RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0);
859
860 /*
861 * Rely on the smode, hmode, etc, predicates within csr.c
862 * to do the filtering of the registers that are present.
863 */
864 if (res == RISCV_EXCP_NONE) {
865 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n",
866 csr_ops[csrno].name, val);
867 }
868 }
869 uint16_t vlenb = cpu->cfg.vlenb;
870
871 for (i = 0; i < 32; i++) {
872 qemu_fprintf(f, " %-8s ", riscv_rvv_regnames[i]);
873 p = (uint8_t *)env->vreg;
874 for (j = vlenb - 1 ; j >= 0; j--) {
875 qemu_fprintf(f, "%02x", *(p + i * vlenb + BYTE(j)));
876 }
877 qemu_fprintf(f, "\n");
878 }
879 }
880 }
881
882 static void riscv_cpu_set_pc(CPUState *cs, vaddr value)
883 {
884 RISCVCPU *cpu = RISCV_CPU(cs);
885 CPURISCVState *env = &cpu->env;
886
887 if (env->xl == MXL_RV32) {
888 env->pc = (int32_t)value;
889 } else {
890 env->pc = value;
891 }
892 }
893
894 static vaddr riscv_cpu_get_pc(CPUState *cs)
895 {
896 RISCVCPU *cpu = RISCV_CPU(cs);
897 CPURISCVState *env = &cpu->env;
898
899 /* Match cpu_get_tb_cpu_state. */
900 if (env->xl == MXL_RV32) {
901 return env->pc & UINT32_MAX;
902 }
903 return env->pc;
904 }
905
906 static bool riscv_cpu_has_work(CPUState *cs)
907 {
908 #ifndef CONFIG_USER_ONLY
909 RISCVCPU *cpu = RISCV_CPU(cs);
910 CPURISCVState *env = &cpu->env;
911 /*
912 * Definition of the WFI instruction requires it to ignore the privilege
913 * mode and delegation registers, but respect individual enables
914 */
915 return riscv_cpu_all_pending(env) != 0 ||
916 riscv_cpu_sirq_pending(env) != RISCV_EXCP_NONE ||
917 riscv_cpu_vsirq_pending(env) != RISCV_EXCP_NONE;
918 #else
919 return true;
920 #endif
921 }
922
923 static int riscv_cpu_mmu_index(CPUState *cs, bool ifetch)
924 {
925 return riscv_env_mmu_index(cpu_env(cs), ifetch);
926 }
927
928 static void riscv_cpu_reset_hold(Object *obj, ResetType type)
929 {
930 #ifndef CONFIG_USER_ONLY
931 uint8_t iprio;
932 int i, irq, rdzero;
933 #endif
934 CPUState *cs = CPU(obj);
935 RISCVCPU *cpu = RISCV_CPU(cs);
936 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(obj);
937 CPURISCVState *env = &cpu->env;
938
939 if (mcc->parent_phases.hold) {
940 mcc->parent_phases.hold(obj, type);
941 }
942 #ifndef CONFIG_USER_ONLY
943 env->misa_mxl = mcc->misa_mxl_max;
944 env->priv = PRV_M;
945 env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV);
946 if (env->misa_mxl > MXL_RV32) {
947 /*
948 * The reset status of SXL/UXL is undefined, but mstatus is WARL
949 * and we must ensure that the value after init is valid for read.
950 */
951 env->mstatus = set_field(env->mstatus, MSTATUS64_SXL, env->misa_mxl);
952 env->mstatus = set_field(env->mstatus, MSTATUS64_UXL, env->misa_mxl);
953 if (riscv_has_ext(env, RVH)) {
954 env->vsstatus = set_field(env->vsstatus,
955 MSTATUS64_SXL, env->misa_mxl);
956 env->vsstatus = set_field(env->vsstatus,
957 MSTATUS64_UXL, env->misa_mxl);
958 env->mstatus_hs = set_field(env->mstatus_hs,
959 MSTATUS64_SXL, env->misa_mxl);
960 env->mstatus_hs = set_field(env->mstatus_hs,
961 MSTATUS64_UXL, env->misa_mxl);
962 }
963 }
964 env->mcause = 0;
965 env->miclaim = MIP_SGEIP;
966 env->pc = env->resetvec;
967 env->bins = 0;
968 env->two_stage_lookup = false;
969
970 env->menvcfg = (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) |
971 (!cpu->cfg.ext_svade && cpu->cfg.ext_svadu ?
972 MENVCFG_ADUE : 0);
973 env->henvcfg = 0;
974
975 /* Initialized default priorities of local interrupts. */
976 for (i = 0; i < ARRAY_SIZE(env->miprio); i++) {
977 iprio = riscv_cpu_default_priority(i);
978 env->miprio[i] = (i == IRQ_M_EXT) ? 0 : iprio;
979 env->siprio[i] = (i == IRQ_S_EXT) ? 0 : iprio;
980 env->hviprio[i] = 0;
981 }
982 i = 0;
983 while (!riscv_cpu_hviprio_index2irq(i, &irq, &rdzero)) {
984 if (!rdzero) {
985 env->hviprio[irq] = env->miprio[irq];
986 }
987 i++;
988 }
989 /* mmte is supposed to have pm.current hardwired to 1 */
990 env->mmte |= (EXT_STATUS_INITIAL | MMTE_M_PM_CURRENT);
991
992 /*
993 * Bits 10, 6, 2 and 12 of mideleg are read only 1 when the Hypervisor
994 * extension is enabled.
995 */
996 if (riscv_has_ext(env, RVH)) {
997 env->mideleg |= HS_MODE_INTERRUPTS;
998 }
999
1000 /*
1001 * Clear mseccfg and unlock all the PMP entries upon reset.
1002 * This is allowed as per the priv and smepmp specifications
1003 * and is needed to clear stale entries across reboots.
1004 */
1005 if (riscv_cpu_cfg(env)->ext_smepmp) {
1006 env->mseccfg = 0;
1007 }
1008
1009 pmp_unlock_entries(env);
1010 #endif
1011 env->xl = riscv_cpu_mxl(env);
1012 riscv_cpu_update_mask(env);
1013 cs->exception_index = RISCV_EXCP_NONE;
1014 env->load_res = -1;
1015 set_default_nan_mode(1, &env->fp_status);
1016
1017 #ifndef CONFIG_USER_ONLY
1018 if (cpu->cfg.debug) {
1019 riscv_trigger_reset_hold(env);
1020 }
1021
1022 if (kvm_enabled()) {
1023 kvm_riscv_reset_vcpu(cpu);
1024 }
1025 #endif
1026 }
1027
1028 static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info)
1029 {
1030 RISCVCPU *cpu = RISCV_CPU(s);
1031 CPURISCVState *env = &cpu->env;
1032 info->target_info = &cpu->cfg;
1033
1034 switch (env->xl) {
1035 case MXL_RV32:
1036 info->print_insn = print_insn_riscv32;
1037 break;
1038 case MXL_RV64:
1039 info->print_insn = print_insn_riscv64;
1040 break;
1041 case MXL_RV128:
1042 info->print_insn = print_insn_riscv128;
1043 break;
1044 default:
1045 g_assert_not_reached();
1046 }
1047 }
1048
1049 #ifndef CONFIG_USER_ONLY
1050 static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
1051 {
1052 bool rv32 = riscv_cpu_is_32bit(cpu);
1053 uint8_t satp_mode_map_max, satp_mode_supported_max;
1054
1055 /* The CPU wants the OS to decide which satp mode to use */
1056 if (cpu->cfg.satp_mode.supported == 0) {
1057 return;
1058 }
1059
1060 satp_mode_supported_max =
1061 satp_mode_max_from_map(cpu->cfg.satp_mode.supported);
1062
1063 if (cpu->cfg.satp_mode.map == 0) {
1064 if (cpu->cfg.satp_mode.init == 0) {
1065 /* If unset by the user, we fallback to the default satp mode. */
1066 set_satp_mode_default_map(cpu);
1067 } else {
1068 /*
1069 * Find the lowest level that was disabled and then enable the
1070 * first valid level below which can be found in
1071 * valid_vm_1_10_32/64.
1072 */
1073 for (int i = 1; i < 16; ++i) {
1074 if ((cpu->cfg.satp_mode.init & (1 << i)) &&
1075 (cpu->cfg.satp_mode.supported & (1 << i))) {
1076 for (int j = i - 1; j >= 0; --j) {
1077 if (cpu->cfg.satp_mode.supported & (1 << j)) {
1078 cpu->cfg.satp_mode.map |= (1 << j);
1079 break;
1080 }
1081 }
1082 break;
1083 }
1084 }
1085 }
1086 }
1087
1088 satp_mode_map_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map);
1089
1090 /* Make sure the user asked for a supported configuration (HW and qemu) */
1091 if (satp_mode_map_max > satp_mode_supported_max) {
1092 error_setg(errp, "satp_mode %s is higher than hw max capability %s",
1093 satp_mode_str(satp_mode_map_max, rv32),
1094 satp_mode_str(satp_mode_supported_max, rv32));
1095 return;
1096 }
1097
1098 /*
1099 * Make sure the user did not ask for an invalid configuration as per
1100 * the specification.
1101 */
1102 if (!rv32) {
1103 for (int i = satp_mode_map_max - 1; i >= 0; --i) {
1104 if (!(cpu->cfg.satp_mode.map & (1 << i)) &&
1105 (cpu->cfg.satp_mode.init & (1 << i)) &&
1106 (cpu->cfg.satp_mode.supported & (1 << i))) {
1107 error_setg(errp, "cannot disable %s satp mode if %s "
1108 "is enabled", satp_mode_str(i, false),
1109 satp_mode_str(satp_mode_map_max, false));
1110 return;
1111 }
1112 }
1113 }
1114
1115 /* Finally expand the map so that all valid modes are set */
1116 for (int i = satp_mode_map_max - 1; i >= 0; --i) {
1117 if (cpu->cfg.satp_mode.supported & (1 << i)) {
1118 cpu->cfg.satp_mode.map |= (1 << i);
1119 }
1120 }
1121 }
1122 #endif
1123
1124 void riscv_cpu_finalize_features(RISCVCPU *cpu, Error **errp)
1125 {
1126 Error *local_err = NULL;
1127
1128 #ifndef CONFIG_USER_ONLY
1129 riscv_cpu_satp_mode_finalize(cpu, &local_err);
1130 if (local_err != NULL) {
1131 error_propagate(errp, local_err);
1132 return;
1133 }
1134 #endif
1135
1136 if (tcg_enabled()) {
1137 riscv_tcg_cpu_finalize_features(cpu, &local_err);
1138 if (local_err != NULL) {
1139 error_propagate(errp, local_err);
1140 return;
1141 }
1142 riscv_tcg_cpu_finalize_dynamic_decoder(cpu);
1143 } else if (kvm_enabled()) {
1144 riscv_kvm_cpu_finalize_features(cpu, &local_err);
1145 if (local_err != NULL) {
1146 error_propagate(errp, local_err);
1147 return;
1148 }
1149 }
1150 }
1151
1152 static void riscv_cpu_realize(DeviceState *dev, Error **errp)
1153 {
1154 CPUState *cs = CPU(dev);
1155 RISCVCPU *cpu = RISCV_CPU(dev);
1156 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev);
1157 Error *local_err = NULL;
1158
1159 if (object_dynamic_cast(OBJECT(dev), TYPE_RISCV_CPU_ANY) != NULL) {
1160 warn_report("The 'any' CPU is deprecated and will be "
1161 "removed in the future.");
1162 }
1163
1164 cpu_exec_realizefn(cs, &local_err);
1165 if (local_err != NULL) {
1166 error_propagate(errp, local_err);
1167 return;
1168 }
1169
1170 riscv_cpu_finalize_features(cpu, &local_err);
1171 if (local_err != NULL) {
1172 error_propagate(errp, local_err);
1173 return;
1174 }
1175
1176 riscv_cpu_register_gdb_regs_for_features(cs);
1177
1178 #ifndef CONFIG_USER_ONLY
1179 if (cpu->cfg.debug) {
1180 riscv_trigger_realize(&cpu->env);
1181 }
1182 #endif
1183
1184 qemu_init_vcpu(cs);
1185 cpu_reset(cs);
1186
1187 mcc->parent_realize(dev, errp);
1188 }
1189
1190 bool riscv_cpu_accelerator_compatible(RISCVCPU *cpu)
1191 {
1192 if (tcg_enabled()) {
1193 return riscv_cpu_tcg_compatible(cpu);
1194 }
1195
1196 return true;
1197 }
1198
1199 #ifndef CONFIG_USER_ONLY
1200 static void cpu_riscv_get_satp(Object *obj, Visitor *v, const char *name,
1201 void *opaque, Error **errp)
1202 {
1203 RISCVSATPMap *satp_map = opaque;
1204 uint8_t satp = satp_mode_from_str(name);
1205 bool value;
1206
1207 value = satp_map->map & (1 << satp);
1208
1209 visit_type_bool(v, name, &value, errp);
1210 }
1211
1212 static void cpu_riscv_set_satp(Object *obj, Visitor *v, const char *name,
1213 void *opaque, Error **errp)
1214 {
1215 RISCVSATPMap *satp_map = opaque;
1216 uint8_t satp = satp_mode_from_str(name);
1217 bool value;
1218
1219 if (!visit_type_bool(v, name, &value, errp)) {
1220 return;
1221 }
1222
1223 satp_map->map = deposit32(satp_map->map, satp, 1, value);
1224 satp_map->init |= 1 << satp;
1225 }
1226
1227 void riscv_add_satp_mode_properties(Object *obj)
1228 {
1229 RISCVCPU *cpu = RISCV_CPU(obj);
1230
1231 if (cpu->env.misa_mxl == MXL_RV32) {
1232 object_property_add(obj, "sv32", "bool", cpu_riscv_get_satp,
1233 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1234 } else {
1235 object_property_add(obj, "sv39", "bool", cpu_riscv_get_satp,
1236 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1237 object_property_add(obj, "sv48", "bool", cpu_riscv_get_satp,
1238 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1239 object_property_add(obj, "sv57", "bool", cpu_riscv_get_satp,
1240 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1241 object_property_add(obj, "sv64", "bool", cpu_riscv_get_satp,
1242 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1243 }
1244 }
1245
1246 static void riscv_cpu_set_irq(void *opaque, int irq, int level)
1247 {
1248 RISCVCPU *cpu = RISCV_CPU(opaque);
1249 CPURISCVState *env = &cpu->env;
1250
1251 if (irq < IRQ_LOCAL_MAX) {
1252 switch (irq) {
1253 case IRQ_U_SOFT:
1254 case IRQ_S_SOFT:
1255 case IRQ_VS_SOFT:
1256 case IRQ_M_SOFT:
1257 case IRQ_U_TIMER:
1258 case IRQ_S_TIMER:
1259 case IRQ_VS_TIMER:
1260 case IRQ_M_TIMER:
1261 case IRQ_U_EXT:
1262 case IRQ_VS_EXT:
1263 case IRQ_M_EXT:
1264 if (kvm_enabled()) {
1265 kvm_riscv_set_irq(cpu, irq, level);
1266 } else {
1267 riscv_cpu_update_mip(env, 1 << irq, BOOL_TO_MASK(level));
1268 }
1269 break;
1270 case IRQ_S_EXT:
1271 if (kvm_enabled()) {
1272 kvm_riscv_set_irq(cpu, irq, level);
1273 } else {
1274 env->external_seip = level;
1275 riscv_cpu_update_mip(env, 1 << irq,
1276 BOOL_TO_MASK(level | env->software_seip));
1277 }
1278 break;
1279 default:
1280 g_assert_not_reached();
1281 }
1282 } else if (irq < (IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX)) {
1283 /* Require H-extension for handling guest local interrupts */
1284 if (!riscv_has_ext(env, RVH)) {
1285 g_assert_not_reached();
1286 }
1287
1288 /* Compute bit position in HGEIP CSR */
1289 irq = irq - IRQ_LOCAL_MAX + 1;
1290 if (env->geilen < irq) {
1291 g_assert_not_reached();
1292 }
1293
1294 /* Update HGEIP CSR */
1295 env->hgeip &= ~((target_ulong)1 << irq);
1296 if (level) {
1297 env->hgeip |= (target_ulong)1 << irq;
1298 }
1299
1300 /* Update mip.SGEIP bit */
1301 riscv_cpu_update_mip(env, MIP_SGEIP,
1302 BOOL_TO_MASK(!!(env->hgeie & env->hgeip)));
1303 } else {
1304 g_assert_not_reached();
1305 }
1306 }
1307 #endif /* CONFIG_USER_ONLY */
1308
1309 static bool riscv_cpu_is_dynamic(Object *cpu_obj)
1310 {
1311 return object_dynamic_cast(cpu_obj, TYPE_RISCV_DYNAMIC_CPU) != NULL;
1312 }
1313
1314 static void riscv_cpu_post_init(Object *obj)
1315 {
1316 accel_cpu_instance_init(CPU(obj));
1317 }
1318
1319 static void riscv_cpu_init(Object *obj)
1320 {
1321 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(obj);
1322 RISCVCPU *cpu = RISCV_CPU(obj);
1323 CPURISCVState *env = &cpu->env;
1324
1325 env->misa_mxl = mcc->misa_mxl_max;
1326
1327 #ifndef CONFIG_USER_ONLY
1328 qdev_init_gpio_in(DEVICE(obj), riscv_cpu_set_irq,
1329 IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX);
1330 #endif /* CONFIG_USER_ONLY */
1331
1332 general_user_opts = g_hash_table_new(g_str_hash, g_str_equal);
1333
1334 /*
1335 * The timer and performance counters extensions were supported
1336 * in QEMU before they were added as discrete extensions in the
1337 * ISA. To keep compatibility we'll always default them to 'true'
1338 * for all CPUs. Each accelerator will decide what to do when
1339 * users disable them.
1340 */
1341 RISCV_CPU(obj)->cfg.ext_zicntr = true;
1342 RISCV_CPU(obj)->cfg.ext_zihpm = true;
1343
1344 /* Default values for non-bool cpu properties */
1345 cpu->cfg.pmu_mask = MAKE_64BIT_MASK(3, 16);
1346 cpu->cfg.vlenb = 128 >> 3;
1347 cpu->cfg.elen = 64;
1348 cpu->cfg.cbom_blocksize = 64;
1349 cpu->cfg.cbop_blocksize = 64;
1350 cpu->cfg.cboz_blocksize = 64;
1351 cpu->env.vext_ver = VEXT_VERSION_1_00_0;
1352 }
1353
1354 static void riscv_bare_cpu_init(Object *obj)
1355 {
1356 RISCVCPU *cpu = RISCV_CPU(obj);
1357
1358 /*
1359 * Bare CPUs do not inherit the timer and performance
1360 * counters from the parent class (see riscv_cpu_init()
1361 * for info on why the parent enables them).
1362 *
1363 * Users have to explicitly enable these counters for
1364 * bare CPUs.
1365 */
1366 cpu->cfg.ext_zicntr = false;
1367 cpu->cfg.ext_zihpm = false;
1368
1369 /* Set to QEMU's first supported priv version */
1370 cpu->env.priv_ver = PRIV_VERSION_1_10_0;
1371
1372 /*
1373 * Support all available satp_mode settings. The default
1374 * value will be set to MBARE if the user doesn't set
1375 * satp_mode manually (see set_satp_mode_default()).
1376 */
1377 #ifndef CONFIG_USER_ONLY
1378 set_satp_mode_max_supported(cpu, VM_1_10_SV64);
1379 #endif
1380 }
1381
1382 typedef struct misa_ext_info {
1383 const char *name;
1384 const char *description;
1385 } MISAExtInfo;
1386
1387 #define MISA_INFO_IDX(_bit) \
1388 __builtin_ctz(_bit)
1389
1390 #define MISA_EXT_INFO(_bit, _propname, _descr) \
1391 [MISA_INFO_IDX(_bit)] = {.name = _propname, .description = _descr}
1392
1393 static const MISAExtInfo misa_ext_info_arr[] = {
1394 MISA_EXT_INFO(RVA, "a", "Atomic instructions"),
1395 MISA_EXT_INFO(RVC, "c", "Compressed instructions"),
1396 MISA_EXT_INFO(RVD, "d", "Double-precision float point"),
1397 MISA_EXT_INFO(RVF, "f", "Single-precision float point"),
1398 MISA_EXT_INFO(RVI, "i", "Base integer instruction set"),
1399 MISA_EXT_INFO(RVE, "e", "Base integer instruction set (embedded)"),
1400 MISA_EXT_INFO(RVM, "m", "Integer multiplication and division"),
1401 MISA_EXT_INFO(RVS, "s", "Supervisor-level instructions"),
1402 MISA_EXT_INFO(RVU, "u", "User-level instructions"),
1403 MISA_EXT_INFO(RVH, "h", "Hypervisor"),
1404 MISA_EXT_INFO(RVJ, "x-j", "Dynamic translated languages"),
1405 MISA_EXT_INFO(RVV, "v", "Vector operations"),
1406 MISA_EXT_INFO(RVG, "g", "General purpose (IMAFD_Zicsr_Zifencei)"),
1407 MISA_EXT_INFO(RVB, "b", "Bit manipulation (Zba_Zbb_Zbs)")
1408 };
1409
1410 static void riscv_cpu_validate_misa_mxl(RISCVCPUClass *mcc)
1411 {
1412 CPUClass *cc = CPU_CLASS(mcc);
1413
1414 /* Validate that MISA_MXL is set properly. */
1415 switch (mcc->misa_mxl_max) {
1416 #ifdef TARGET_RISCV64
1417 case MXL_RV64:
1418 case MXL_RV128:
1419 cc->gdb_core_xml_file = "riscv-64bit-cpu.xml";
1420 break;
1421 #endif
1422 case MXL_RV32:
1423 cc->gdb_core_xml_file = "riscv-32bit-cpu.xml";
1424 break;
1425 default:
1426 g_assert_not_reached();
1427 }
1428 }
1429
1430 static int riscv_validate_misa_info_idx(uint32_t bit)
1431 {
1432 int idx;
1433
1434 /*
1435 * Our lowest valid input (RVA) is 1 and
1436 * __builtin_ctz() is UB with zero.
1437 */
1438 g_assert(bit != 0);
1439 idx = MISA_INFO_IDX(bit);
1440
1441 g_assert(idx < ARRAY_SIZE(misa_ext_info_arr));
1442 return idx;
1443 }
1444
1445 const char *riscv_get_misa_ext_name(uint32_t bit)
1446 {
1447 int idx = riscv_validate_misa_info_idx(bit);
1448 const char *val = misa_ext_info_arr[idx].name;
1449
1450 g_assert(val != NULL);
1451 return val;
1452 }
1453
1454 const char *riscv_get_misa_ext_description(uint32_t bit)
1455 {
1456 int idx = riscv_validate_misa_info_idx(bit);
1457 const char *val = misa_ext_info_arr[idx].description;
1458
1459 g_assert(val != NULL);
1460 return val;
1461 }
1462
1463 #define MULTI_EXT_CFG_BOOL(_name, _prop, _defval) \
1464 {.name = _name, .offset = CPU_CFG_OFFSET(_prop), \
1465 .enabled = _defval}
1466
1467 const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = {
1468 /* Defaults for standard extensions */
1469 MULTI_EXT_CFG_BOOL("sscofpmf", ext_sscofpmf, false),
1470 MULTI_EXT_CFG_BOOL("zifencei", ext_zifencei, true),
1471 MULTI_EXT_CFG_BOOL("zicsr", ext_zicsr, true),
1472 MULTI_EXT_CFG_BOOL("zihintntl", ext_zihintntl, true),
1473 MULTI_EXT_CFG_BOOL("zihintpause", ext_zihintpause, true),
1474 MULTI_EXT_CFG_BOOL("zacas", ext_zacas, false),
1475 MULTI_EXT_CFG_BOOL("zaamo", ext_zaamo, false),
1476 MULTI_EXT_CFG_BOOL("zalrsc", ext_zalrsc, false),
1477 MULTI_EXT_CFG_BOOL("zawrs", ext_zawrs, true),
1478 MULTI_EXT_CFG_BOOL("zfa", ext_zfa, true),
1479 MULTI_EXT_CFG_BOOL("zfbfmin", ext_zfbfmin, false),
1480 MULTI_EXT_CFG_BOOL("zfh", ext_zfh, false),
1481 MULTI_EXT_CFG_BOOL("zfhmin", ext_zfhmin, false),
1482 MULTI_EXT_CFG_BOOL("zve32f", ext_zve32f, false),
1483 MULTI_EXT_CFG_BOOL("zve32x", ext_zve32x, false),
1484 MULTI_EXT_CFG_BOOL("zve64f", ext_zve64f, false),
1485 MULTI_EXT_CFG_BOOL("zve64d", ext_zve64d, false),
1486 MULTI_EXT_CFG_BOOL("zve64x", ext_zve64x, false),
1487 MULTI_EXT_CFG_BOOL("zvfbfmin", ext_zvfbfmin, false),
1488 MULTI_EXT_CFG_BOOL("zvfbfwma", ext_zvfbfwma, false),
1489 MULTI_EXT_CFG_BOOL("zvfh", ext_zvfh, false),
1490 MULTI_EXT_CFG_BOOL("zvfhmin", ext_zvfhmin, false),
1491 MULTI_EXT_CFG_BOOL("sstc", ext_sstc, true),
1492
1493 MULTI_EXT_CFG_BOOL("smaia", ext_smaia, false),
1494 MULTI_EXT_CFG_BOOL("smepmp", ext_smepmp, false),
1495 MULTI_EXT_CFG_BOOL("smstateen", ext_smstateen, false),
1496 MULTI_EXT_CFG_BOOL("ssaia", ext_ssaia, false),
1497 MULTI_EXT_CFG_BOOL("svade", ext_svade, false),
1498 MULTI_EXT_CFG_BOOL("svadu", ext_svadu, true),
1499 MULTI_EXT_CFG_BOOL("svinval", ext_svinval, false),
1500 MULTI_EXT_CFG_BOOL("svnapot", ext_svnapot, false),
1501 MULTI_EXT_CFG_BOOL("svpbmt", ext_svpbmt, false),
1502
1503 MULTI_EXT_CFG_BOOL("zicntr", ext_zicntr, true),
1504 MULTI_EXT_CFG_BOOL("zihpm", ext_zihpm, true),
1505
1506 MULTI_EXT_CFG_BOOL("zba", ext_zba, true),
1507 MULTI_EXT_CFG_BOOL("zbb", ext_zbb, true),
1508 MULTI_EXT_CFG_BOOL("zbc", ext_zbc, true),
1509 MULTI_EXT_CFG_BOOL("zbkb", ext_zbkb, false),
1510 MULTI_EXT_CFG_BOOL("zbkc", ext_zbkc, false),
1511 MULTI_EXT_CFG_BOOL("zbkx", ext_zbkx, false),
1512 MULTI_EXT_CFG_BOOL("zbs", ext_zbs, true),
1513 MULTI_EXT_CFG_BOOL("zk", ext_zk, false),
1514 MULTI_EXT_CFG_BOOL("zkn", ext_zkn, false),
1515 MULTI_EXT_CFG_BOOL("zknd", ext_zknd, false),
1516 MULTI_EXT_CFG_BOOL("zkne", ext_zkne, false),
1517 MULTI_EXT_CFG_BOOL("zknh", ext_zknh, false),
1518 MULTI_EXT_CFG_BOOL("zkr", ext_zkr, false),
1519 MULTI_EXT_CFG_BOOL("zks", ext_zks, false),
1520 MULTI_EXT_CFG_BOOL("zksed", ext_zksed, false),
1521 MULTI_EXT_CFG_BOOL("zksh", ext_zksh, false),
1522 MULTI_EXT_CFG_BOOL("zkt", ext_zkt, false),
1523 MULTI_EXT_CFG_BOOL("ztso", ext_ztso, false),
1524
1525 MULTI_EXT_CFG_BOOL("zdinx", ext_zdinx, false),
1526 MULTI_EXT_CFG_BOOL("zfinx", ext_zfinx, false),
1527 MULTI_EXT_CFG_BOOL("zhinx", ext_zhinx, false),
1528 MULTI_EXT_CFG_BOOL("zhinxmin", ext_zhinxmin, false),
1529
1530 MULTI_EXT_CFG_BOOL("zicbom", ext_zicbom, true),
1531 MULTI_EXT_CFG_BOOL("zicbop", ext_zicbop, true),
1532 MULTI_EXT_CFG_BOOL("zicboz", ext_zicboz, true),
1533
1534 MULTI_EXT_CFG_BOOL("zmmul", ext_zmmul, false),
1535
1536 MULTI_EXT_CFG_BOOL("zca", ext_zca, false),
1537 MULTI_EXT_CFG_BOOL("zcb", ext_zcb, false),
1538 MULTI_EXT_CFG_BOOL("zcd", ext_zcd, false),
1539 MULTI_EXT_CFG_BOOL("zce", ext_zce, false),
1540 MULTI_EXT_CFG_BOOL("zcf", ext_zcf, false),
1541 MULTI_EXT_CFG_BOOL("zcmp", ext_zcmp, false),
1542 MULTI_EXT_CFG_BOOL("zcmt", ext_zcmt, false),
1543 MULTI_EXT_CFG_BOOL("zicond", ext_zicond, false),
1544
1545 /* Vector cryptography extensions */
1546 MULTI_EXT_CFG_BOOL("zvbb", ext_zvbb, false),
1547 MULTI_EXT_CFG_BOOL("zvbc", ext_zvbc, false),
1548 MULTI_EXT_CFG_BOOL("zvkb", ext_zvkb, false),
1549 MULTI_EXT_CFG_BOOL("zvkg", ext_zvkg, false),
1550 MULTI_EXT_CFG_BOOL("zvkned", ext_zvkned, false),
1551 MULTI_EXT_CFG_BOOL("zvknha", ext_zvknha, false),
1552 MULTI_EXT_CFG_BOOL("zvknhb", ext_zvknhb, false),
1553 MULTI_EXT_CFG_BOOL("zvksed", ext_zvksed, false),
1554 MULTI_EXT_CFG_BOOL("zvksh", ext_zvksh, false),
1555 MULTI_EXT_CFG_BOOL("zvkt", ext_zvkt, false),
1556 MULTI_EXT_CFG_BOOL("zvkn", ext_zvkn, false),
1557 MULTI_EXT_CFG_BOOL("zvknc", ext_zvknc, false),
1558 MULTI_EXT_CFG_BOOL("zvkng", ext_zvkng, false),
1559 MULTI_EXT_CFG_BOOL("zvks", ext_zvks, false),
1560 MULTI_EXT_CFG_BOOL("zvksc", ext_zvksc, false),
1561 MULTI_EXT_CFG_BOOL("zvksg", ext_zvksg, false),
1562
1563 DEFINE_PROP_END_OF_LIST(),
1564 };
1565
1566 const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[] = {
1567 MULTI_EXT_CFG_BOOL("xtheadba", ext_xtheadba, false),
1568 MULTI_EXT_CFG_BOOL("xtheadbb", ext_xtheadbb, false),
1569 MULTI_EXT_CFG_BOOL("xtheadbs", ext_xtheadbs, false),
1570 MULTI_EXT_CFG_BOOL("xtheadcmo", ext_xtheadcmo, false),
1571 MULTI_EXT_CFG_BOOL("xtheadcondmov", ext_xtheadcondmov, false),
1572 MULTI_EXT_CFG_BOOL("xtheadfmemidx", ext_xtheadfmemidx, false),
1573 MULTI_EXT_CFG_BOOL("xtheadfmv", ext_xtheadfmv, false),
1574 MULTI_EXT_CFG_BOOL("xtheadmac", ext_xtheadmac, false),
1575 MULTI_EXT_CFG_BOOL("xtheadmemidx", ext_xtheadmemidx, false),
1576 MULTI_EXT_CFG_BOOL("xtheadmempair", ext_xtheadmempair, false),
1577 MULTI_EXT_CFG_BOOL("xtheadsync", ext_xtheadsync, false),
1578 MULTI_EXT_CFG_BOOL("xventanacondops", ext_XVentanaCondOps, false),
1579
1580 DEFINE_PROP_END_OF_LIST(),
1581 };
1582
1583 /* These are experimental so mark with 'x-' */
1584 const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = {
1585 DEFINE_PROP_END_OF_LIST(),
1586 };
1587
1588 /*
1589 * 'Named features' is the name we give to extensions that we
1590 * don't want to expose to users. They are either immutable
1591 * (always enabled/disable) or they'll vary depending on
1592 * the resulting CPU state. They have riscv,isa strings
1593 * and priv_ver like regular extensions.
1594 */
1595 const RISCVCPUMultiExtConfig riscv_cpu_named_features[] = {
1596 MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true),
1597
1598 DEFINE_PROP_END_OF_LIST(),
1599 };
1600
1601 /* Deprecated entries marked for future removal */
1602 const RISCVCPUMultiExtConfig riscv_cpu_deprecated_exts[] = {
1603 MULTI_EXT_CFG_BOOL("Zifencei", ext_zifencei, true),
1604 MULTI_EXT_CFG_BOOL("Zicsr", ext_zicsr, true),
1605 MULTI_EXT_CFG_BOOL("Zihintntl", ext_zihintntl, true),
1606 MULTI_EXT_CFG_BOOL("Zihintpause", ext_zihintpause, true),
1607 MULTI_EXT_CFG_BOOL("Zawrs", ext_zawrs, true),
1608 MULTI_EXT_CFG_BOOL("Zfa", ext_zfa, true),
1609 MULTI_EXT_CFG_BOOL("Zfh", ext_zfh, false),
1610 MULTI_EXT_CFG_BOOL("Zfhmin", ext_zfhmin, false),
1611 MULTI_EXT_CFG_BOOL("Zve32f", ext_zve32f, false),
1612 MULTI_EXT_CFG_BOOL("Zve64f", ext_zve64f, false),
1613 MULTI_EXT_CFG_BOOL("Zve64d", ext_zve64d, false),
1614
1615 DEFINE_PROP_END_OF_LIST(),
1616 };
1617
1618 static void cpu_set_prop_err(RISCVCPU *cpu, const char *propname,
1619 Error **errp)
1620 {
1621 g_autofree char *cpuname = riscv_cpu_get_name(cpu);
1622 error_setg(errp, "CPU '%s' does not allow changing the value of '%s'",
1623 cpuname, propname);
1624 }
1625
1626 static void prop_pmu_num_set(Object *obj, Visitor *v, const char *name,
1627 void *opaque, Error **errp)
1628 {
1629 RISCVCPU *cpu = RISCV_CPU(obj);
1630 uint8_t pmu_num, curr_pmu_num;
1631 uint32_t pmu_mask;
1632
1633 visit_type_uint8(v, name, &pmu_num, errp);
1634
1635 curr_pmu_num = ctpop32(cpu->cfg.pmu_mask);
1636
1637 if (pmu_num != curr_pmu_num && riscv_cpu_is_vendor(obj)) {
1638 cpu_set_prop_err(cpu, name, errp);
1639 error_append_hint(errp, "Current '%s' val: %u\n",
1640 name, curr_pmu_num);
1641 return;
1642 }
1643
1644 if (pmu_num > (RV_MAX_MHPMCOUNTERS - 3)) {
1645 error_setg(errp, "Number of counters exceeds maximum available");
1646 return;
1647 }
1648
1649 if (pmu_num == 0) {
1650 pmu_mask = 0;
1651 } else {
1652 pmu_mask = MAKE_64BIT_MASK(3, pmu_num);
1653 }
1654
1655 warn_report("\"pmu-num\" property is deprecated; use \"pmu-mask\"");
1656 cpu->cfg.pmu_mask = pmu_mask;
1657 cpu_option_add_user_setting("pmu-mask", pmu_mask);
1658 }
1659
1660 static void prop_pmu_num_get(Object *obj, Visitor *v, const char *name,
1661 void *opaque, Error **errp)
1662 {
1663 RISCVCPU *cpu = RISCV_CPU(obj);
1664 uint8_t pmu_num = ctpop32(cpu->cfg.pmu_mask);
1665
1666 visit_type_uint8(v, name, &pmu_num, errp);
1667 }
1668
1669 static const PropertyInfo prop_pmu_num = {
1670 .name = "pmu-num",
1671 .get = prop_pmu_num_get,
1672 .set = prop_pmu_num_set,
1673 };
1674
1675 static void prop_pmu_mask_set(Object *obj, Visitor *v, const char *name,
1676 void *opaque, Error **errp)
1677 {
1678 RISCVCPU *cpu = RISCV_CPU(obj);
1679 uint32_t value;
1680 uint8_t pmu_num;
1681
1682 visit_type_uint32(v, name, &value, errp);
1683
1684 if (value != cpu->cfg.pmu_mask && riscv_cpu_is_vendor(obj)) {
1685 cpu_set_prop_err(cpu, name, errp);
1686 error_append_hint(errp, "Current '%s' val: %x\n",
1687 name, cpu->cfg.pmu_mask);
1688 return;
1689 }
1690
1691 pmu_num = ctpop32(value);
1692
1693 if (pmu_num > (RV_MAX_MHPMCOUNTERS - 3)) {
1694 error_setg(errp, "Number of counters exceeds maximum available");
1695 return;
1696 }
1697
1698 cpu_option_add_user_setting(name, value);
1699 cpu->cfg.pmu_mask = value;
1700 }
1701
1702 static void prop_pmu_mask_get(Object *obj, Visitor *v, const char *name,
1703 void *opaque, Error **errp)
1704 {
1705 uint8_t pmu_mask = RISCV_CPU(obj)->cfg.pmu_mask;
1706
1707 visit_type_uint8(v, name, &pmu_mask, errp);
1708 }
1709
1710 static const PropertyInfo prop_pmu_mask = {
1711 .name = "pmu-mask",
1712 .get = prop_pmu_mask_get,
1713 .set = prop_pmu_mask_set,
1714 };
1715
1716 static void prop_mmu_set(Object *obj, Visitor *v, const char *name,
1717 void *opaque, Error **errp)
1718 {
1719 RISCVCPU *cpu = RISCV_CPU(obj);
1720 bool value;
1721
1722 visit_type_bool(v, name, &value, errp);
1723
1724 if (cpu->cfg.mmu != value && riscv_cpu_is_vendor(obj)) {
1725 cpu_set_prop_err(cpu, "mmu", errp);
1726 return;
1727 }
1728
1729 cpu_option_add_user_setting(name, value);
1730 cpu->cfg.mmu = value;
1731 }
1732
1733 static void prop_mmu_get(Object *obj, Visitor *v, const char *name,
1734 void *opaque, Error **errp)
1735 {
1736 bool value = RISCV_CPU(obj)->cfg.mmu;
1737
1738 visit_type_bool(v, name, &value, errp);
1739 }
1740
1741 static const PropertyInfo prop_mmu = {
1742 .name = "mmu",
1743 .get = prop_mmu_get,
1744 .set = prop_mmu_set,
1745 };
1746
1747 static void prop_pmp_set(Object *obj, Visitor *v, const char *name,
1748 void *opaque, Error **errp)
1749 {
1750 RISCVCPU *cpu = RISCV_CPU(obj);
1751 bool value;
1752
1753 visit_type_bool(v, name, &value, errp);
1754
1755 if (cpu->cfg.pmp != value && riscv_cpu_is_vendor(obj)) {
1756 cpu_set_prop_err(cpu, name, errp);
1757 return;
1758 }
1759
1760 cpu_option_add_user_setting(name, value);
1761 cpu->cfg.pmp = value;
1762 }
1763
1764 static void prop_pmp_get(Object *obj, Visitor *v, const char *name,
1765 void *opaque, Error **errp)
1766 {
1767 bool value = RISCV_CPU(obj)->cfg.pmp;
1768
1769 visit_type_bool(v, name, &value, errp);
1770 }
1771
1772 static const PropertyInfo prop_pmp = {
1773 .name = "pmp",
1774 .get = prop_pmp_get,
1775 .set = prop_pmp_set,
1776 };
1777
1778 static int priv_spec_from_str(const char *priv_spec_str)
1779 {
1780 int priv_version = -1;
1781
1782 if (!g_strcmp0(priv_spec_str, PRIV_VER_1_12_0_STR)) {
1783 priv_version = PRIV_VERSION_1_12_0;
1784 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_11_0_STR)) {
1785 priv_version = PRIV_VERSION_1_11_0;
1786 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_10_0_STR)) {
1787 priv_version = PRIV_VERSION_1_10_0;
1788 }
1789
1790 return priv_version;
1791 }
1792
1793 static const char *priv_spec_to_str(int priv_version)
1794 {
1795 switch (priv_version) {
1796 case PRIV_VERSION_1_10_0:
1797 return PRIV_VER_1_10_0_STR;
1798 case PRIV_VERSION_1_11_0:
1799 return PRIV_VER_1_11_0_STR;
1800 case PRIV_VERSION_1_12_0:
1801 return PRIV_VER_1_12_0_STR;
1802 default:
1803 return NULL;
1804 }
1805 }
1806
1807 static void prop_priv_spec_set(Object *obj, Visitor *v, const char *name,
1808 void *opaque, Error **errp)
1809 {
1810 RISCVCPU *cpu = RISCV_CPU(obj);
1811 g_autofree char *value = NULL;
1812 int priv_version = -1;
1813
1814 visit_type_str(v, name, &value, errp);
1815
1816 priv_version = priv_spec_from_str(value);
1817 if (priv_version < 0) {
1818 error_setg(errp, "Unsupported privilege spec version '%s'", value);
1819 return;
1820 }
1821
1822 if (priv_version != cpu->env.priv_ver && riscv_cpu_is_vendor(obj)) {
1823 cpu_set_prop_err(cpu, name, errp);
1824 error_append_hint(errp, "Current '%s' val: %s\n", name,
1825 object_property_get_str(obj, name, NULL));
1826 return;
1827 }
1828
1829 cpu_option_add_user_setting(name, priv_version);
1830 cpu->env.priv_ver = priv_version;
1831 }
1832
1833 static void prop_priv_spec_get(Object *obj, Visitor *v, const char *name,
1834 void *opaque, Error **errp)
1835 {
1836 RISCVCPU *cpu = RISCV_CPU(obj);
1837 const char *value = priv_spec_to_str(cpu->env.priv_ver);
1838
1839 visit_type_str(v, name, (char **)&value, errp);
1840 }
1841
1842 static const PropertyInfo prop_priv_spec = {
1843 .name = "priv_spec",
1844 .get = prop_priv_spec_get,
1845 .set = prop_priv_spec_set,
1846 };
1847
1848 static void prop_vext_spec_set(Object *obj, Visitor *v, const char *name,
1849 void *opaque, Error **errp)
1850 {
1851 RISCVCPU *cpu = RISCV_CPU(obj);
1852 g_autofree char *value = NULL;
1853
1854 visit_type_str(v, name, &value, errp);
1855
1856 if (g_strcmp0(value, VEXT_VER_1_00_0_STR) != 0) {
1857 error_setg(errp, "Unsupported vector spec version '%s'", value);
1858 return;
1859 }
1860
1861 cpu_option_add_user_setting(name, VEXT_VERSION_1_00_0);
1862 cpu->env.vext_ver = VEXT_VERSION_1_00_0;
1863 }
1864
1865 static void prop_vext_spec_get(Object *obj, Visitor *v, const char *name,
1866 void *opaque, Error **errp)
1867 {
1868 const char *value = VEXT_VER_1_00_0_STR;
1869
1870 visit_type_str(v, name, (char **)&value, errp);
1871 }
1872
1873 static const PropertyInfo prop_vext_spec = {
1874 .name = "vext_spec",
1875 .get = prop_vext_spec_get,
1876 .set = prop_vext_spec_set,
1877 };
1878
1879 static void prop_vlen_set(Object *obj, Visitor *v, const char *name,
1880 void *opaque, Error **errp)
1881 {
1882 RISCVCPU *cpu = RISCV_CPU(obj);
1883 uint16_t value;
1884
1885 if (!visit_type_uint16(v, name, &value, errp)) {
1886 return;
1887 }
1888
1889 if (!is_power_of_2(value)) {
1890 error_setg(errp, "Vector extension VLEN must be power of 2");
1891 return;
1892 }
1893
1894 if (value != cpu->cfg.vlenb && riscv_cpu_is_vendor(obj)) {
1895 cpu_set_prop_err(cpu, name, errp);
1896 error_append_hint(errp, "Current '%s' val: %u\n",
1897 name, cpu->cfg.vlenb << 3);
1898 return;
1899 }
1900
1901 cpu_option_add_user_setting(name, value);
1902 cpu->cfg.vlenb = value >> 3;
1903 }
1904
1905 static void prop_vlen_get(Object *obj, Visitor *v, const char *name,
1906 void *opaque, Error **errp)
1907 {
1908 uint16_t value = RISCV_CPU(obj)->cfg.vlenb << 3;
1909
1910 visit_type_uint16(v, name, &value, errp);
1911 }
1912
1913 static const PropertyInfo prop_vlen = {
1914 .name = "vlen",
1915 .get = prop_vlen_get,
1916 .set = prop_vlen_set,
1917 };
1918
1919 static void prop_elen_set(Object *obj, Visitor *v, const char *name,
1920 void *opaque, Error **errp)
1921 {
1922 RISCVCPU *cpu = RISCV_CPU(obj);
1923 uint16_t value;
1924
1925 if (!visit_type_uint16(v, name, &value, errp)) {
1926 return;
1927 }
1928
1929 if (!is_power_of_2(value)) {
1930 error_setg(errp, "Vector extension ELEN must be power of 2");
1931 return;
1932 }
1933
1934 if (value != cpu->cfg.elen && riscv_cpu_is_vendor(obj)) {
1935 cpu_set_prop_err(cpu, name, errp);
1936 error_append_hint(errp, "Current '%s' val: %u\n",
1937 name, cpu->cfg.elen);
1938 return;
1939 }
1940
1941 cpu_option_add_user_setting(name, value);
1942 cpu->cfg.elen = value;
1943 }
1944
1945 static void prop_elen_get(Object *obj, Visitor *v, const char *name,
1946 void *opaque, Error **errp)
1947 {
1948 uint16_t value = RISCV_CPU(obj)->cfg.elen;
1949
1950 visit_type_uint16(v, name, &value, errp);
1951 }
1952
1953 static const PropertyInfo prop_elen = {
1954 .name = "elen",
1955 .get = prop_elen_get,
1956 .set = prop_elen_set,
1957 };
1958
1959 static void prop_cbom_blksize_set(Object *obj, Visitor *v, const char *name,
1960 void *opaque, Error **errp)
1961 {
1962 RISCVCPU *cpu = RISCV_CPU(obj);
1963 uint16_t value;
1964
1965 if (!visit_type_uint16(v, name, &value, errp)) {
1966 return;
1967 }
1968
1969 if (value != cpu->cfg.cbom_blocksize && riscv_cpu_is_vendor(obj)) {
1970 cpu_set_prop_err(cpu, name, errp);
1971 error_append_hint(errp, "Current '%s' val: %u\n",
1972 name, cpu->cfg.cbom_blocksize);
1973 return;
1974 }
1975
1976 cpu_option_add_user_setting(name, value);
1977 cpu->cfg.cbom_blocksize = value;
1978 }
1979
1980 static void prop_cbom_blksize_get(Object *obj, Visitor *v, const char *name,
1981 void *opaque, Error **errp)
1982 {
1983 uint16_t value = RISCV_CPU(obj)->cfg.cbom_blocksize;
1984
1985 visit_type_uint16(v, name, &value, errp);
1986 }
1987
1988 static const PropertyInfo prop_cbom_blksize = {
1989 .name = "cbom_blocksize",
1990 .get = prop_cbom_blksize_get,
1991 .set = prop_cbom_blksize_set,
1992 };
1993
1994 static void prop_cbop_blksize_set(Object *obj, Visitor *v, const char *name,
1995 void *opaque, Error **errp)
1996 {
1997 RISCVCPU *cpu = RISCV_CPU(obj);
1998 uint16_t value;
1999
2000 if (!visit_type_uint16(v, name, &value, errp)) {
2001 return;
2002 }
2003
2004 if (value != cpu->cfg.cbop_blocksize && riscv_cpu_is_vendor(obj)) {
2005 cpu_set_prop_err(cpu, name, errp);
2006 error_append_hint(errp, "Current '%s' val: %u\n",
2007 name, cpu->cfg.cbop_blocksize);
2008 return;
2009 }
2010
2011 cpu_option_add_user_setting(name, value);
2012 cpu->cfg.cbop_blocksize = value;
2013 }
2014
2015 static void prop_cbop_blksize_get(Object *obj, Visitor *v, const char *name,
2016 void *opaque, Error **errp)
2017 {
2018 uint16_t value = RISCV_CPU(obj)->cfg.cbop_blocksize;
2019
2020 visit_type_uint16(v, name, &value, errp);
2021 }
2022
2023 static const PropertyInfo prop_cbop_blksize = {
2024 .name = "cbop_blocksize",
2025 .get = prop_cbop_blksize_get,
2026 .set = prop_cbop_blksize_set,
2027 };
2028
2029 static void prop_cboz_blksize_set(Object *obj, Visitor *v, const char *name,
2030 void *opaque, Error **errp)
2031 {
2032 RISCVCPU *cpu = RISCV_CPU(obj);
2033 uint16_t value;
2034
2035 if (!visit_type_uint16(v, name, &value, errp)) {
2036 return;
2037 }
2038
2039 if (value != cpu->cfg.cboz_blocksize && riscv_cpu_is_vendor(obj)) {
2040 cpu_set_prop_err(cpu, name, errp);
2041 error_append_hint(errp, "Current '%s' val: %u\n",
2042 name, cpu->cfg.cboz_blocksize);
2043 return;
2044 }
2045
2046 cpu_option_add_user_setting(name, value);
2047 cpu->cfg.cboz_blocksize = value;
2048 }
2049
2050 static void prop_cboz_blksize_get(Object *obj, Visitor *v, const char *name,
2051 void *opaque, Error **errp)
2052 {
2053 uint16_t value = RISCV_CPU(obj)->cfg.cboz_blocksize;
2054
2055 visit_type_uint16(v, name, &value, errp);
2056 }
2057
2058 static const PropertyInfo prop_cboz_blksize = {
2059 .name = "cboz_blocksize",
2060 .get = prop_cboz_blksize_get,
2061 .set = prop_cboz_blksize_set,
2062 };
2063
2064 static void prop_mvendorid_set(Object *obj, Visitor *v, const char *name,
2065 void *opaque, Error **errp)
2066 {
2067 bool dynamic_cpu = riscv_cpu_is_dynamic(obj);
2068 RISCVCPU *cpu = RISCV_CPU(obj);
2069 uint32_t prev_val = cpu->cfg.mvendorid;
2070 uint32_t value;
2071
2072 if (!visit_type_uint32(v, name, &value, errp)) {
2073 return;
2074 }
2075
2076 if (!dynamic_cpu && prev_val != value) {
2077 error_setg(errp, "Unable to change %s mvendorid (0x%x)",
2078 object_get_typename(obj), prev_val);
2079 return;
2080 }
2081
2082 cpu->cfg.mvendorid = value;
2083 }
2084
2085 static void prop_mvendorid_get(Object *obj, Visitor *v, const char *name,
2086 void *opaque, Error **errp)
2087 {
2088 uint32_t value = RISCV_CPU(obj)->cfg.mvendorid;
2089
2090 visit_type_uint32(v, name, &value, errp);
2091 }
2092
2093 static const PropertyInfo prop_mvendorid = {
2094 .name = "mvendorid",
2095 .get = prop_mvendorid_get,
2096 .set = prop_mvendorid_set,
2097 };
2098
2099 static void prop_mimpid_set(Object *obj, Visitor *v, const char *name,
2100 void *opaque, Error **errp)
2101 {
2102 bool dynamic_cpu = riscv_cpu_is_dynamic(obj);
2103 RISCVCPU *cpu = RISCV_CPU(obj);
2104 uint64_t prev_val = cpu->cfg.mimpid;
2105 uint64_t value;
2106
2107 if (!visit_type_uint64(v, name, &value, errp)) {
2108 return;
2109 }
2110
2111 if (!dynamic_cpu && prev_val != value) {
2112 error_setg(errp, "Unable to change %s mimpid (0x%" PRIu64 ")",
2113 object_get_typename(obj), prev_val);
2114 return;
2115 }
2116
2117 cpu->cfg.mimpid = value;
2118 }
2119
2120 static void prop_mimpid_get(Object *obj, Visitor *v, const char *name,
2121 void *opaque, Error **errp)
2122 {
2123 uint64_t value = RISCV_CPU(obj)->cfg.mimpid;
2124
2125 visit_type_uint64(v, name, &value, errp);
2126 }
2127
2128 static const PropertyInfo prop_mimpid = {
2129 .name = "mimpid",
2130 .get = prop_mimpid_get,
2131 .set = prop_mimpid_set,
2132 };
2133
2134 static void prop_marchid_set(Object *obj, Visitor *v, const char *name,
2135 void *opaque, Error **errp)
2136 {
2137 bool dynamic_cpu = riscv_cpu_is_dynamic(obj);
2138 RISCVCPU *cpu = RISCV_CPU(obj);
2139 uint64_t prev_val = cpu->cfg.marchid;
2140 uint64_t value, invalid_val;
2141 uint32_t mxlen = 0;
2142
2143 if (!visit_type_uint64(v, name, &value, errp)) {
2144 return;
2145 }
2146
2147 if (!dynamic_cpu && prev_val != value) {
2148 error_setg(errp, "Unable to change %s marchid (0x%" PRIu64 ")",
2149 object_get_typename(obj), prev_val);
2150 return;
2151 }
2152
2153 switch (riscv_cpu_mxl(&cpu->env)) {
2154 case MXL_RV32:
2155 mxlen = 32;
2156 break;
2157 case MXL_RV64:
2158 case MXL_RV128:
2159 mxlen = 64;
2160 break;
2161 default:
2162 g_assert_not_reached();
2163 }
2164
2165 invalid_val = 1LL << (mxlen - 1);
2166
2167 if (value == invalid_val) {
2168 error_setg(errp, "Unable to set marchid with MSB (%u) bit set "
2169 "and the remaining bits zero", mxlen);
2170 return;
2171 }
2172
2173 cpu->cfg.marchid = value;
2174 }
2175
2176 static void prop_marchid_get(Object *obj, Visitor *v, const char *name,
2177 void *opaque, Error **errp)
2178 {
2179 uint64_t value = RISCV_CPU(obj)->cfg.marchid;
2180
2181 visit_type_uint64(v, name, &value, errp);
2182 }
2183
2184 static const PropertyInfo prop_marchid = {
2185 .name = "marchid",
2186 .get = prop_marchid_get,
2187 .set = prop_marchid_set,
2188 };
2189
2190 /*
2191 * RVA22U64 defines some 'named features' that are cache
2192 * related: Za64rs, Zic64b, Ziccif, Ziccrse, Ziccamoa
2193 * and Zicclsm. They are always implemented in TCG and
2194 * doesn't need to be manually enabled by the profile.
2195 */
2196 static RISCVCPUProfile RVA22U64 = {
2197 .parent = NULL,
2198 .name = "rva22u64",
2199 .misa_ext = RVI | RVM | RVA | RVF | RVD | RVC | RVU,
2200 .priv_spec = RISCV_PROFILE_ATTR_UNUSED,
2201 .satp_mode = RISCV_PROFILE_ATTR_UNUSED,
2202 .ext_offsets = {
2203 CPU_CFG_OFFSET(ext_zicsr), CPU_CFG_OFFSET(ext_zihintpause),
2204 CPU_CFG_OFFSET(ext_zba), CPU_CFG_OFFSET(ext_zbb),
2205 CPU_CFG_OFFSET(ext_zbs), CPU_CFG_OFFSET(ext_zfhmin),
2206 CPU_CFG_OFFSET(ext_zkt), CPU_CFG_OFFSET(ext_zicntr),
2207 CPU_CFG_OFFSET(ext_zihpm), CPU_CFG_OFFSET(ext_zicbom),
2208 CPU_CFG_OFFSET(ext_zicbop), CPU_CFG_OFFSET(ext_zicboz),
2209
2210 /* mandatory named features for this profile */
2211 CPU_CFG_OFFSET(ext_zic64b),
2212
2213 RISCV_PROFILE_EXT_LIST_END
2214 }
2215 };
2216
2217 /*
2218 * As with RVA22U64, RVA22S64 also defines 'named features'.
2219 *
2220 * Cache related features that we consider enabled since we don't
2221 * implement cache: Ssccptr
2222 *
2223 * Other named features that we already implement: Sstvecd, Sstvala,
2224 * Sscounterenw
2225 *
2226 * The remaining features/extensions comes from RVA22U64.
2227 */
2228 static RISCVCPUProfile RVA22S64 = {
2229 .parent = &RVA22U64,
2230 .name = "rva22s64",
2231 .misa_ext = RVS,
2232 .priv_spec = PRIV_VERSION_1_12_0,
2233 .satp_mode = VM_1_10_SV39,
2234 .ext_offsets = {
2235 /* rva22s64 exts */
2236 CPU_CFG_OFFSET(ext_zifencei), CPU_CFG_OFFSET(ext_svpbmt),
2237 CPU_CFG_OFFSET(ext_svinval), CPU_CFG_OFFSET(ext_svade),
2238
2239 RISCV_PROFILE_EXT_LIST_END
2240 }
2241 };
2242
2243 RISCVCPUProfile *riscv_profiles[] = {
2244 &RVA22U64,
2245 &RVA22S64,
2246 NULL,
2247 };
2248
2249 static Property riscv_cpu_properties[] = {
2250 DEFINE_PROP_BOOL("debug", RISCVCPU, cfg.debug, true),
2251
2252 {.name = "pmu-mask", .info = &prop_pmu_mask},
2253 {.name = "pmu-num", .info = &prop_pmu_num}, /* Deprecated */
2254
2255 {.name = "mmu", .info = &prop_mmu},
2256 {.name = "pmp", .info = &prop_pmp},
2257
2258 {.name = "priv_spec", .info = &prop_priv_spec},
2259 {.name = "vext_spec", .info = &prop_vext_spec},
2260
2261 {.name = "vlen", .info = &prop_vlen},
2262 {.name = "elen", .info = &prop_elen},
2263
2264 {.name = "cbom_blocksize", .info = &prop_cbom_blksize},
2265 {.name = "cbop_blocksize", .info = &prop_cbop_blksize},
2266 {.name = "cboz_blocksize", .info = &prop_cboz_blksize},
2267
2268 {.name = "mvendorid", .info = &prop_mvendorid},
2269 {.name = "mimpid", .info = &prop_mimpid},
2270 {.name = "marchid", .info = &prop_marchid},
2271
2272 #ifndef CONFIG_USER_ONLY
2273 DEFINE_PROP_UINT64("resetvec", RISCVCPU, env.resetvec, DEFAULT_RSTVEC),
2274 #endif
2275
2276 DEFINE_PROP_BOOL("short-isa-string", RISCVCPU, cfg.short_isa_string, false),
2277
2278 DEFINE_PROP_BOOL("rvv_ta_all_1s", RISCVCPU, cfg.rvv_ta_all_1s, false),
2279 DEFINE_PROP_BOOL("rvv_ma_all_1s", RISCVCPU, cfg.rvv_ma_all_1s, false),
2280
2281 /*
2282 * write_misa() is marked as experimental for now so mark
2283 * it with -x and default to 'false'.
2284 */
2285 DEFINE_PROP_BOOL("x-misa-w", RISCVCPU, cfg.misa_w, false),
2286 DEFINE_PROP_END_OF_LIST(),
2287 };
2288
2289 #if defined(TARGET_RISCV64)
2290 static void rva22u64_profile_cpu_init(Object *obj)
2291 {
2292 rv64i_bare_cpu_init(obj);
2293
2294 RVA22U64.enabled = true;
2295 }
2296
2297 static void rva22s64_profile_cpu_init(Object *obj)
2298 {
2299 rv64i_bare_cpu_init(obj);
2300
2301 RVA22S64.enabled = true;
2302 }
2303 #endif
2304
2305 static const gchar *riscv_gdb_arch_name(CPUState *cs)
2306 {
2307 RISCVCPU *cpu = RISCV_CPU(cs);
2308 CPURISCVState *env = &cpu->env;
2309
2310 switch (riscv_cpu_mxl(env)) {
2311 case MXL_RV32:
2312 return "riscv:rv32";
2313 case MXL_RV64:
2314 case MXL_RV128:
2315 return "riscv:rv64";
2316 default:
2317 g_assert_not_reached();
2318 }
2319 }
2320
2321 #ifndef CONFIG_USER_ONLY
2322 static int64_t riscv_get_arch_id(CPUState *cs)
2323 {
2324 RISCVCPU *cpu = RISCV_CPU(cs);
2325
2326 return cpu->env.mhartid;
2327 }
2328
2329 #include "hw/core/sysemu-cpu-ops.h"
2330
2331 static const struct SysemuCPUOps riscv_sysemu_ops = {
2332 .get_phys_page_debug = riscv_cpu_get_phys_page_debug,
2333 .write_elf64_note = riscv_cpu_write_elf64_note,
2334 .write_elf32_note = riscv_cpu_write_elf32_note,
2335 .legacy_vmsd = &vmstate_riscv_cpu,
2336 };
2337 #endif
2338
2339 static void riscv_cpu_common_class_init(ObjectClass *c, void *data)
2340 {
2341 RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
2342 CPUClass *cc = CPU_CLASS(c);
2343 DeviceClass *dc = DEVICE_CLASS(c);
2344 ResettableClass *rc = RESETTABLE_CLASS(c);
2345
2346 device_class_set_parent_realize(dc, riscv_cpu_realize,
2347 &mcc->parent_realize);
2348
2349 resettable_class_set_parent_phases(rc, NULL, riscv_cpu_reset_hold, NULL,
2350 &mcc->parent_phases);
2351
2352 cc->class_by_name = riscv_cpu_class_by_name;
2353 cc->has_work = riscv_cpu_has_work;
2354 cc->mmu_index = riscv_cpu_mmu_index;
2355 cc->dump_state = riscv_cpu_dump_state;
2356 cc->set_pc = riscv_cpu_set_pc;
2357 cc->get_pc = riscv_cpu_get_pc;
2358 cc->gdb_read_register = riscv_cpu_gdb_read_register;
2359 cc->gdb_write_register = riscv_cpu_gdb_write_register;
2360 cc->gdb_stop_before_watchpoint = true;
2361 cc->disas_set_info = riscv_cpu_disas_set_info;
2362 #ifndef CONFIG_USER_ONLY
2363 cc->sysemu_ops = &riscv_sysemu_ops;
2364 cc->get_arch_id = riscv_get_arch_id;
2365 #endif
2366 cc->gdb_arch_name = riscv_gdb_arch_name;
2367
2368 device_class_set_props(dc, riscv_cpu_properties);
2369 }
2370
2371 static void riscv_cpu_class_init(ObjectClass *c, void *data)
2372 {
2373 RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
2374
2375 mcc->misa_mxl_max = (uint32_t)(uintptr_t)data;
2376 riscv_cpu_validate_misa_mxl(mcc);
2377 }
2378
2379 static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str,
2380 int max_str_len)
2381 {
2382 const RISCVIsaExtData *edata;
2383 char *old = *isa_str;
2384 char *new = *isa_str;
2385
2386 for (edata = isa_edata_arr; edata && edata->name; edata++) {
2387 if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) {
2388 new = g_strconcat(old, "_", edata->name, NULL);
2389 g_free(old);
2390 old = new;
2391 }
2392 }
2393
2394 *isa_str = new;
2395 }
2396
2397 char *riscv_isa_string(RISCVCPU *cpu)
2398 {
2399 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu);
2400 int i;
2401 const size_t maxlen = sizeof("rv128") + sizeof(riscv_single_letter_exts);
2402 char *isa_str = g_new(char, maxlen);
2403 int xlen = riscv_cpu_max_xlen(mcc);
2404 char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", xlen);
2405
2406 for (i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) {
2407 if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) {
2408 *p++ = qemu_tolower(riscv_single_letter_exts[i]);
2409 }
2410 }
2411 *p = '\0';
2412 if (!cpu->cfg.short_isa_string) {
2413 riscv_isa_string_ext(cpu, &isa_str, maxlen);
2414 }
2415 return isa_str;
2416 }
2417
2418 #ifndef CONFIG_USER_ONLY
2419 static char **riscv_isa_extensions_list(RISCVCPU *cpu, int *count)
2420 {
2421 int maxlen = ARRAY_SIZE(riscv_single_letter_exts) + ARRAY_SIZE(isa_edata_arr);
2422 char **extensions = g_new(char *, maxlen);
2423
2424 for (int i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) {
2425 if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) {
2426 extensions[*count] = g_new(char, 2);
2427 snprintf(extensions[*count], 2, "%c",
2428 qemu_tolower(riscv_single_letter_exts[i]));
2429 (*count)++;
2430 }
2431 }
2432
2433 for (const RISCVIsaExtData *edata = isa_edata_arr; edata->name; edata++) {
2434 if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) {
2435 extensions[*count] = g_strdup(edata->name);
2436 (*count)++;
2437 }
2438 }
2439
2440 return extensions;
2441 }
2442
2443 void riscv_isa_write_fdt(RISCVCPU *cpu, void *fdt, char *nodename)
2444 {
2445 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu);
2446 const size_t maxlen = sizeof("rv128i");
2447 g_autofree char *isa_base = g_new(char, maxlen);
2448 g_autofree char *riscv_isa;
2449 char **isa_extensions;
2450 int count = 0;
2451 int xlen = riscv_cpu_max_xlen(mcc);
2452
2453 riscv_isa = riscv_isa_string(cpu);
2454 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", riscv_isa);
2455
2456 snprintf(isa_base, maxlen, "rv%di", xlen);
2457 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa-base", isa_base);
2458
2459 isa_extensions = riscv_isa_extensions_list(cpu, &count);
2460 qemu_fdt_setprop_string_array(fdt, nodename, "riscv,isa-extensions",
2461 isa_extensions, count);
2462
2463 for (int i = 0; i < count; i++) {
2464 g_free(isa_extensions[i]);
2465 }
2466
2467 g_free(isa_extensions);
2468 }
2469 #endif
2470
2471 #define DEFINE_CPU(type_name, misa_mxl_max, initfn) \
2472 { \
2473 .name = (type_name), \
2474 .parent = TYPE_RISCV_CPU, \
2475 .instance_init = (initfn), \
2476 .class_init = riscv_cpu_class_init, \
2477 .class_data = (void *)(misa_mxl_max) \
2478 }
2479
2480 #define DEFINE_DYNAMIC_CPU(type_name, misa_mxl_max, initfn) \
2481 { \
2482 .name = (type_name), \
2483 .parent = TYPE_RISCV_DYNAMIC_CPU, \
2484 .instance_init = (initfn), \
2485 .class_init = riscv_cpu_class_init, \
2486 .class_data = (void *)(misa_mxl_max) \
2487 }
2488
2489 #define DEFINE_VENDOR_CPU(type_name, misa_mxl_max, initfn) \
2490 { \
2491 .name = (type_name), \
2492 .parent = TYPE_RISCV_VENDOR_CPU, \
2493 .instance_init = (initfn), \
2494 .class_init = riscv_cpu_class_init, \
2495 .class_data = (void *)(misa_mxl_max) \
2496 }
2497
2498 #define DEFINE_BARE_CPU(type_name, misa_mxl_max, initfn) \
2499 { \
2500 .name = (type_name), \
2501 .parent = TYPE_RISCV_BARE_CPU, \
2502 .instance_init = (initfn), \
2503 .class_init = riscv_cpu_class_init, \
2504 .class_data = (void *)(misa_mxl_max) \
2505 }
2506
2507 #define DEFINE_PROFILE_CPU(type_name, misa_mxl_max, initfn) \
2508 { \
2509 .name = (type_name), \
2510 .parent = TYPE_RISCV_BARE_CPU, \
2511 .instance_init = (initfn), \
2512 .class_init = riscv_cpu_class_init, \
2513 .class_data = (void *)(misa_mxl_max) \
2514 }
2515
2516 static const TypeInfo riscv_cpu_type_infos[] = {
2517 {
2518 .name = TYPE_RISCV_CPU,
2519 .parent = TYPE_CPU,
2520 .instance_size = sizeof(RISCVCPU),
2521 .instance_align = __alignof(RISCVCPU),
2522 .instance_init = riscv_cpu_init,
2523 .instance_post_init = riscv_cpu_post_init,
2524 .abstract = true,
2525 .class_size = sizeof(RISCVCPUClass),
2526 .class_init = riscv_cpu_common_class_init,
2527 },
2528 {
2529 .name = TYPE_RISCV_DYNAMIC_CPU,
2530 .parent = TYPE_RISCV_CPU,
2531 .abstract = true,
2532 },
2533 {
2534 .name = TYPE_RISCV_VENDOR_CPU,
2535 .parent = TYPE_RISCV_CPU,
2536 .abstract = true,
2537 },
2538 {
2539 .name = TYPE_RISCV_BARE_CPU,
2540 .parent = TYPE_RISCV_CPU,
2541 .instance_init = riscv_bare_cpu_init,
2542 .abstract = true,
2543 },
2544 #if defined(TARGET_RISCV32)
2545 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_ANY, MXL_RV32, riscv_any_cpu_init),
2546 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX, MXL_RV32, riscv_max_cpu_init),
2547 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE32, MXL_RV32, rv32_base_cpu_init),
2548 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_IBEX, MXL_RV32, rv32_ibex_cpu_init),
2549 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E31, MXL_RV32, rv32_sifive_e_cpu_init),
2550 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E34, MXL_RV32, rv32_imafcu_nommu_cpu_init),
2551 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U34, MXL_RV32, rv32_sifive_u_cpu_init),
2552 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV32I, MXL_RV32, rv32i_bare_cpu_init),
2553 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV32E, MXL_RV32, rv32e_bare_cpu_init),
2554 #elif defined(TARGET_RISCV64)
2555 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_ANY, MXL_RV64, riscv_any_cpu_init),
2556 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX, MXL_RV64, riscv_max_cpu_init),
2557 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE64, MXL_RV64, rv64_base_cpu_init),
2558 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E51, MXL_RV64, rv64_sifive_e_cpu_init),
2559 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64, rv64_sifive_u_cpu_init),
2560 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C, MXL_RV64, rv64_sifive_u_cpu_init),
2561 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64, rv64_thead_c906_cpu_init),
2562 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1, MXL_RV64, rv64_veyron_v1_cpu_init),
2563 #ifdef CONFIG_TCG
2564 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128, MXL_RV128, rv128_base_cpu_init),
2565 #endif /* CONFIG_TCG */
2566 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV64I, MXL_RV64, rv64i_bare_cpu_init),
2567 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV64E, MXL_RV64, rv64e_bare_cpu_init),
2568 DEFINE_PROFILE_CPU(TYPE_RISCV_CPU_RVA22U64, MXL_RV64, rva22u64_profile_cpu_init),
2569 DEFINE_PROFILE_CPU(TYPE_RISCV_CPU_RVA22S64, MXL_RV64, rva22s64_profile_cpu_init),
2570 #endif /* TARGET_RISCV64 */
2571 };
2572
2573 DEFINE_TYPES(riscv_cpu_type_infos)
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