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
riscv_cpu_is_32bit(RISCVCPU * cpu)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
cpu_option_add_user_setting(const char * optname,uint32_t value)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
riscv_cpu_option_set(const char * optname)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(zicfilp, PRIV_VERSION_1_12_0, ext_zicfilp),
110 ISA_EXT_DATA_ENTRY(zicfiss, PRIV_VERSION_1_13_0, ext_zicfiss),
111 ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond),
112 ISA_EXT_DATA_ENTRY(zicntr, PRIV_VERSION_1_12_0, ext_zicntr),
113 ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_zicsr),
114 ISA_EXT_DATA_ENTRY(zifencei, PRIV_VERSION_1_10_0, ext_zifencei),
115 ISA_EXT_DATA_ENTRY(zihintntl, PRIV_VERSION_1_10_0, ext_zihintntl),
116 ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause),
117 ISA_EXT_DATA_ENTRY(zihpm, PRIV_VERSION_1_12_0, ext_zihpm),
118 ISA_EXT_DATA_ENTRY(zimop, PRIV_VERSION_1_13_0, ext_zimop),
119 ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul),
120 ISA_EXT_DATA_ENTRY(za64rs, PRIV_VERSION_1_12_0, has_priv_1_12),
121 ISA_EXT_DATA_ENTRY(zaamo, PRIV_VERSION_1_12_0, ext_zaamo),
122 ISA_EXT_DATA_ENTRY(zabha, PRIV_VERSION_1_13_0, ext_zabha),
123 ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas),
124 ISA_EXT_DATA_ENTRY(zama16b, PRIV_VERSION_1_13_0, ext_zama16b),
125 ISA_EXT_DATA_ENTRY(zalrsc, PRIV_VERSION_1_12_0, ext_zalrsc),
126 ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs),
127 ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa),
128 ISA_EXT_DATA_ENTRY(zfbfmin, PRIV_VERSION_1_12_0, ext_zfbfmin),
129 ISA_EXT_DATA_ENTRY(zfh, PRIV_VERSION_1_11_0, ext_zfh),
130 ISA_EXT_DATA_ENTRY(zfhmin, PRIV_VERSION_1_11_0, ext_zfhmin),
131 ISA_EXT_DATA_ENTRY(zfinx, PRIV_VERSION_1_12_0, ext_zfinx),
132 ISA_EXT_DATA_ENTRY(zdinx, PRIV_VERSION_1_12_0, ext_zdinx),
133 ISA_EXT_DATA_ENTRY(zca, PRIV_VERSION_1_12_0, ext_zca),
134 ISA_EXT_DATA_ENTRY(zcb, PRIV_VERSION_1_12_0, ext_zcb),
135 ISA_EXT_DATA_ENTRY(zcf, PRIV_VERSION_1_12_0, ext_zcf),
136 ISA_EXT_DATA_ENTRY(zcd, PRIV_VERSION_1_12_0, ext_zcd),
137 ISA_EXT_DATA_ENTRY(zce, PRIV_VERSION_1_12_0, ext_zce),
138 ISA_EXT_DATA_ENTRY(zcmop, PRIV_VERSION_1_13_0, ext_zcmop),
139 ISA_EXT_DATA_ENTRY(zcmp, PRIV_VERSION_1_12_0, ext_zcmp),
140 ISA_EXT_DATA_ENTRY(zcmt, PRIV_VERSION_1_12_0, ext_zcmt),
141 ISA_EXT_DATA_ENTRY(zba, PRIV_VERSION_1_12_0, ext_zba),
142 ISA_EXT_DATA_ENTRY(zbb, PRIV_VERSION_1_12_0, ext_zbb),
143 ISA_EXT_DATA_ENTRY(zbc, PRIV_VERSION_1_12_0, ext_zbc),
144 ISA_EXT_DATA_ENTRY(zbkb, PRIV_VERSION_1_12_0, ext_zbkb),
145 ISA_EXT_DATA_ENTRY(zbkc, PRIV_VERSION_1_12_0, ext_zbkc),
146 ISA_EXT_DATA_ENTRY(zbkx, PRIV_VERSION_1_12_0, ext_zbkx),
147 ISA_EXT_DATA_ENTRY(zbs, PRIV_VERSION_1_12_0, ext_zbs),
148 ISA_EXT_DATA_ENTRY(zk, PRIV_VERSION_1_12_0, ext_zk),
149 ISA_EXT_DATA_ENTRY(zkn, PRIV_VERSION_1_12_0, ext_zkn),
150 ISA_EXT_DATA_ENTRY(zknd, PRIV_VERSION_1_12_0, ext_zknd),
151 ISA_EXT_DATA_ENTRY(zkne, PRIV_VERSION_1_12_0, ext_zkne),
152 ISA_EXT_DATA_ENTRY(zknh, PRIV_VERSION_1_12_0, ext_zknh),
153 ISA_EXT_DATA_ENTRY(zkr, PRIV_VERSION_1_12_0, ext_zkr),
154 ISA_EXT_DATA_ENTRY(zks, PRIV_VERSION_1_12_0, ext_zks),
155 ISA_EXT_DATA_ENTRY(zksed, PRIV_VERSION_1_12_0, ext_zksed),
156 ISA_EXT_DATA_ENTRY(zksh, PRIV_VERSION_1_12_0, ext_zksh),
157 ISA_EXT_DATA_ENTRY(zkt, PRIV_VERSION_1_12_0, ext_zkt),
158 ISA_EXT_DATA_ENTRY(ztso, PRIV_VERSION_1_12_0, ext_ztso),
159 ISA_EXT_DATA_ENTRY(zvbb, PRIV_VERSION_1_12_0, ext_zvbb),
160 ISA_EXT_DATA_ENTRY(zvbc, PRIV_VERSION_1_12_0, ext_zvbc),
161 ISA_EXT_DATA_ENTRY(zve32f, PRIV_VERSION_1_10_0, ext_zve32f),
162 ISA_EXT_DATA_ENTRY(zve32x, PRIV_VERSION_1_10_0, ext_zve32x),
163 ISA_EXT_DATA_ENTRY(zve64f, PRIV_VERSION_1_10_0, ext_zve64f),
164 ISA_EXT_DATA_ENTRY(zve64d, PRIV_VERSION_1_10_0, ext_zve64d),
165 ISA_EXT_DATA_ENTRY(zve64x, PRIV_VERSION_1_10_0, ext_zve64x),
166 ISA_EXT_DATA_ENTRY(zvfbfmin, PRIV_VERSION_1_12_0, ext_zvfbfmin),
167 ISA_EXT_DATA_ENTRY(zvfbfwma, PRIV_VERSION_1_12_0, ext_zvfbfwma),
168 ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh),
169 ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin),
170 ISA_EXT_DATA_ENTRY(zvkb, PRIV_VERSION_1_12_0, ext_zvkb),
171 ISA_EXT_DATA_ENTRY(zvkg, PRIV_VERSION_1_12_0, ext_zvkg),
172 ISA_EXT_DATA_ENTRY(zvkn, PRIV_VERSION_1_12_0, ext_zvkn),
173 ISA_EXT_DATA_ENTRY(zvknc, PRIV_VERSION_1_12_0, ext_zvknc),
174 ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned),
175 ISA_EXT_DATA_ENTRY(zvkng, PRIV_VERSION_1_12_0, ext_zvkng),
176 ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha),
177 ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb),
178 ISA_EXT_DATA_ENTRY(zvks, PRIV_VERSION_1_12_0, ext_zvks),
179 ISA_EXT_DATA_ENTRY(zvksc, PRIV_VERSION_1_12_0, ext_zvksc),
180 ISA_EXT_DATA_ENTRY(zvksed, PRIV_VERSION_1_12_0, ext_zvksed),
181 ISA_EXT_DATA_ENTRY(zvksg, PRIV_VERSION_1_12_0, ext_zvksg),
182 ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh),
183 ISA_EXT_DATA_ENTRY(zvkt, PRIV_VERSION_1_12_0, ext_zvkt),
184 ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx),
185 ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin),
186 ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia),
187 ISA_EXT_DATA_ENTRY(smcntrpmf, PRIV_VERSION_1_12_0, ext_smcntrpmf),
188 ISA_EXT_DATA_ENTRY(smepmp, PRIV_VERSION_1_12_0, ext_smepmp),
189 ISA_EXT_DATA_ENTRY(smstateen, PRIV_VERSION_1_12_0, ext_smstateen),
190 ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia),
191 ISA_EXT_DATA_ENTRY(ssccptr, PRIV_VERSION_1_11_0, has_priv_1_11),
192 ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf),
193 ISA_EXT_DATA_ENTRY(sscounterenw, PRIV_VERSION_1_12_0, has_priv_1_12),
194 ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc),
195 ISA_EXT_DATA_ENTRY(sstvala, PRIV_VERSION_1_12_0, has_priv_1_12),
196 ISA_EXT_DATA_ENTRY(sstvecd, PRIV_VERSION_1_12_0, has_priv_1_12),
197 ISA_EXT_DATA_ENTRY(svade, PRIV_VERSION_1_11_0, ext_svade),
198 ISA_EXT_DATA_ENTRY(svadu, PRIV_VERSION_1_12_0, ext_svadu),
199 ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval),
200 ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot),
201 ISA_EXT_DATA_ENTRY(svpbmt, PRIV_VERSION_1_12_0, ext_svpbmt),
202 ISA_EXT_DATA_ENTRY(svvptc, PRIV_VERSION_1_13_0, ext_svvptc),
203 ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba),
204 ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb),
205 ISA_EXT_DATA_ENTRY(xtheadbs, PRIV_VERSION_1_11_0, ext_xtheadbs),
206 ISA_EXT_DATA_ENTRY(xtheadcmo, PRIV_VERSION_1_11_0, ext_xtheadcmo),
207 ISA_EXT_DATA_ENTRY(xtheadcondmov, PRIV_VERSION_1_11_0, ext_xtheadcondmov),
208 ISA_EXT_DATA_ENTRY(xtheadfmemidx, PRIV_VERSION_1_11_0, ext_xtheadfmemidx),
209 ISA_EXT_DATA_ENTRY(xtheadfmv, PRIV_VERSION_1_11_0, ext_xtheadfmv),
210 ISA_EXT_DATA_ENTRY(xtheadmac, PRIV_VERSION_1_11_0, ext_xtheadmac),
211 ISA_EXT_DATA_ENTRY(xtheadmemidx, PRIV_VERSION_1_11_0, ext_xtheadmemidx),
212 ISA_EXT_DATA_ENTRY(xtheadmempair, PRIV_VERSION_1_11_0, ext_xtheadmempair),
213 ISA_EXT_DATA_ENTRY(xtheadsync, PRIV_VERSION_1_11_0, ext_xtheadsync),
214 ISA_EXT_DATA_ENTRY(xventanacondops, PRIV_VERSION_1_12_0, ext_XVentanaCondOps),
215
216 DEFINE_PROP_END_OF_LIST(),
217 };
218
isa_ext_is_enabled(RISCVCPU * cpu,uint32_t ext_offset)219 bool isa_ext_is_enabled(RISCVCPU *cpu, uint32_t ext_offset)
220 {
221 bool *ext_enabled = (void *)&cpu->cfg + ext_offset;
222
223 return *ext_enabled;
224 }
225
isa_ext_update_enabled(RISCVCPU * cpu,uint32_t ext_offset,bool en)226 void isa_ext_update_enabled(RISCVCPU *cpu, uint32_t ext_offset, bool en)
227 {
228 bool *ext_enabled = (void *)&cpu->cfg + ext_offset;
229
230 *ext_enabled = en;
231 }
232
riscv_cpu_is_vendor(Object * cpu_obj)233 bool riscv_cpu_is_vendor(Object *cpu_obj)
234 {
235 return object_dynamic_cast(cpu_obj, TYPE_RISCV_VENDOR_CPU) != NULL;
236 }
237
238 const char * const riscv_int_regnames[] = {
239 "x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1",
240 "x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3",
241 "x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4",
242 "x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11",
243 "x28/t3", "x29/t4", "x30/t5", "x31/t6"
244 };
245
246 const char * const riscv_int_regnamesh[] = {
247 "x0h/zeroh", "x1h/rah", "x2h/sph", "x3h/gph", "x4h/tph", "x5h/t0h",
248 "x6h/t1h", "x7h/t2h", "x8h/s0h", "x9h/s1h", "x10h/a0h", "x11h/a1h",
249 "x12h/a2h", "x13h/a3h", "x14h/a4h", "x15h/a5h", "x16h/a6h", "x17h/a7h",
250 "x18h/s2h", "x19h/s3h", "x20h/s4h", "x21h/s5h", "x22h/s6h", "x23h/s7h",
251 "x24h/s8h", "x25h/s9h", "x26h/s10h", "x27h/s11h", "x28h/t3h", "x29h/t4h",
252 "x30h/t5h", "x31h/t6h"
253 };
254
255 const char * const riscv_fpr_regnames[] = {
256 "f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5",
257 "f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1",
258 "f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7",
259 "f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7",
260 "f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9",
261 "f30/ft10", "f31/ft11"
262 };
263
264 const char * const riscv_rvv_regnames[] = {
265 "v0", "v1", "v2", "v3", "v4", "v5", "v6",
266 "v7", "v8", "v9", "v10", "v11", "v12", "v13",
267 "v14", "v15", "v16", "v17", "v18", "v19", "v20",
268 "v21", "v22", "v23", "v24", "v25", "v26", "v27",
269 "v28", "v29", "v30", "v31"
270 };
271
272 static const char * const riscv_excp_names[] = {
273 "misaligned_fetch",
274 "fault_fetch",
275 "illegal_instruction",
276 "breakpoint",
277 "misaligned_load",
278 "fault_load",
279 "misaligned_store",
280 "fault_store",
281 "user_ecall",
282 "supervisor_ecall",
283 "hypervisor_ecall",
284 "machine_ecall",
285 "exec_page_fault",
286 "load_page_fault",
287 "reserved",
288 "store_page_fault",
289 "reserved",
290 "reserved",
291 "reserved",
292 "reserved",
293 "guest_exec_page_fault",
294 "guest_load_page_fault",
295 "reserved",
296 "guest_store_page_fault",
297 };
298
299 static const char * const riscv_intr_names[] = {
300 "u_software",
301 "s_software",
302 "vs_software",
303 "m_software",
304 "u_timer",
305 "s_timer",
306 "vs_timer",
307 "m_timer",
308 "u_external",
309 "s_external",
310 "vs_external",
311 "m_external",
312 "reserved",
313 "reserved",
314 "reserved",
315 "reserved"
316 };
317
riscv_cpu_get_trap_name(target_ulong cause,bool async)318 const char *riscv_cpu_get_trap_name(target_ulong cause, bool async)
319 {
320 if (async) {
321 return (cause < ARRAY_SIZE(riscv_intr_names)) ?
322 riscv_intr_names[cause] : "(unknown)";
323 } else {
324 return (cause < ARRAY_SIZE(riscv_excp_names)) ?
325 riscv_excp_names[cause] : "(unknown)";
326 }
327 }
328
riscv_cpu_set_misa_ext(CPURISCVState * env,uint32_t ext)329 void riscv_cpu_set_misa_ext(CPURISCVState *env, uint32_t ext)
330 {
331 env->misa_ext_mask = env->misa_ext = ext;
332 }
333
riscv_cpu_max_xlen(RISCVCPUClass * mcc)334 int riscv_cpu_max_xlen(RISCVCPUClass *mcc)
335 {
336 return 16 << mcc->misa_mxl_max;
337 }
338
339 #ifndef CONFIG_USER_ONLY
satp_mode_from_str(const char * satp_mode_str)340 static uint8_t satp_mode_from_str(const char *satp_mode_str)
341 {
342 if (!strncmp(satp_mode_str, "mbare", 5)) {
343 return VM_1_10_MBARE;
344 }
345
346 if (!strncmp(satp_mode_str, "sv32", 4)) {
347 return VM_1_10_SV32;
348 }
349
350 if (!strncmp(satp_mode_str, "sv39", 4)) {
351 return VM_1_10_SV39;
352 }
353
354 if (!strncmp(satp_mode_str, "sv48", 4)) {
355 return VM_1_10_SV48;
356 }
357
358 if (!strncmp(satp_mode_str, "sv57", 4)) {
359 return VM_1_10_SV57;
360 }
361
362 if (!strncmp(satp_mode_str, "sv64", 4)) {
363 return VM_1_10_SV64;
364 }
365
366 g_assert_not_reached();
367 }
368
satp_mode_max_from_map(uint32_t map)369 uint8_t satp_mode_max_from_map(uint32_t map)
370 {
371 /*
372 * 'map = 0' will make us return (31 - 32), which C will
373 * happily overflow to UINT_MAX. There's no good result to
374 * return if 'map = 0' (e.g. returning 0 will be ambiguous
375 * with the result for 'map = 1').
376 *
377 * Assert out if map = 0. Callers will have to deal with
378 * it outside of this function.
379 */
380 g_assert(map > 0);
381
382 /* map here has at least one bit set, so no problem with clz */
383 return 31 - __builtin_clz(map);
384 }
385
satp_mode_str(uint8_t satp_mode,bool is_32_bit)386 const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit)
387 {
388 if (is_32_bit) {
389 switch (satp_mode) {
390 case VM_1_10_SV32:
391 return "sv32";
392 case VM_1_10_MBARE:
393 return "none";
394 }
395 } else {
396 switch (satp_mode) {
397 case VM_1_10_SV64:
398 return "sv64";
399 case VM_1_10_SV57:
400 return "sv57";
401 case VM_1_10_SV48:
402 return "sv48";
403 case VM_1_10_SV39:
404 return "sv39";
405 case VM_1_10_MBARE:
406 return "none";
407 }
408 }
409
410 g_assert_not_reached();
411 }
412
set_satp_mode_max_supported(RISCVCPU * cpu,uint8_t satp_mode)413 static void set_satp_mode_max_supported(RISCVCPU *cpu,
414 uint8_t satp_mode)
415 {
416 bool rv32 = riscv_cpu_mxl(&cpu->env) == MXL_RV32;
417 const bool *valid_vm = rv32 ? valid_vm_1_10_32 : valid_vm_1_10_64;
418
419 for (int i = 0; i <= satp_mode; ++i) {
420 if (valid_vm[i]) {
421 cpu->cfg.satp_mode.supported |= (1 << i);
422 }
423 }
424 }
425
426 /* Set the satp mode to the max supported */
set_satp_mode_default_map(RISCVCPU * cpu)427 static void set_satp_mode_default_map(RISCVCPU *cpu)
428 {
429 /*
430 * Bare CPUs do not default to the max available.
431 * Users must set a valid satp_mode in the command
432 * line.
433 */
434 if (object_dynamic_cast(OBJECT(cpu), TYPE_RISCV_BARE_CPU) != NULL) {
435 warn_report("No satp mode set. Defaulting to 'bare'");
436 cpu->cfg.satp_mode.map = (1 << VM_1_10_MBARE);
437 return;
438 }
439
440 cpu->cfg.satp_mode.map = cpu->cfg.satp_mode.supported;
441 }
442 #endif
443
riscv_max_cpu_init(Object * obj)444 static void riscv_max_cpu_init(Object *obj)
445 {
446 RISCVCPU *cpu = RISCV_CPU(obj);
447 CPURISCVState *env = &cpu->env;
448
449 cpu->cfg.mmu = true;
450 cpu->cfg.pmp = true;
451
452 env->priv_ver = PRIV_VERSION_LATEST;
453 #ifndef CONFIG_USER_ONLY
454 set_satp_mode_max_supported(RISCV_CPU(obj),
455 riscv_cpu_mxl(&RISCV_CPU(obj)->env) == MXL_RV32 ?
456 VM_1_10_SV32 : VM_1_10_SV57);
457 #endif
458 }
459
460 #if defined(TARGET_RISCV64)
rv64_base_cpu_init(Object * obj)461 static void rv64_base_cpu_init(Object *obj)
462 {
463 RISCVCPU *cpu = RISCV_CPU(obj);
464 CPURISCVState *env = &cpu->env;
465
466 cpu->cfg.mmu = true;
467 cpu->cfg.pmp = true;
468
469 /* Set latest version of privileged specification */
470 env->priv_ver = PRIV_VERSION_LATEST;
471 #ifndef CONFIG_USER_ONLY
472 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57);
473 #endif
474 }
475
rv64_sifive_u_cpu_init(Object * obj)476 static void rv64_sifive_u_cpu_init(Object *obj)
477 {
478 RISCVCPU *cpu = RISCV_CPU(obj);
479 CPURISCVState *env = &cpu->env;
480 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
481 env->priv_ver = PRIV_VERSION_1_10_0;
482 #ifndef CONFIG_USER_ONLY
483 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV39);
484 #endif
485
486 /* inherited from parent obj via riscv_cpu_init() */
487 cpu->cfg.ext_zifencei = true;
488 cpu->cfg.ext_zicsr = true;
489 cpu->cfg.mmu = true;
490 cpu->cfg.pmp = true;
491 }
492
rv64_sifive_e_cpu_init(Object * obj)493 static void rv64_sifive_e_cpu_init(Object *obj)
494 {
495 CPURISCVState *env = &RISCV_CPU(obj)->env;
496 RISCVCPU *cpu = RISCV_CPU(obj);
497
498 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVC | RVU);
499 env->priv_ver = PRIV_VERSION_1_10_0;
500 #ifndef CONFIG_USER_ONLY
501 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
502 #endif
503
504 /* inherited from parent obj via riscv_cpu_init() */
505 cpu->cfg.ext_zifencei = true;
506 cpu->cfg.ext_zicsr = true;
507 cpu->cfg.pmp = true;
508 }
509
rv64_thead_c906_cpu_init(Object * obj)510 static void rv64_thead_c906_cpu_init(Object *obj)
511 {
512 CPURISCVState *env = &RISCV_CPU(obj)->env;
513 RISCVCPU *cpu = RISCV_CPU(obj);
514
515 riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU);
516 env->priv_ver = PRIV_VERSION_1_11_0;
517
518 cpu->cfg.ext_zfa = true;
519 cpu->cfg.ext_zfh = true;
520 cpu->cfg.mmu = true;
521 cpu->cfg.ext_xtheadba = true;
522 cpu->cfg.ext_xtheadbb = true;
523 cpu->cfg.ext_xtheadbs = true;
524 cpu->cfg.ext_xtheadcmo = true;
525 cpu->cfg.ext_xtheadcondmov = true;
526 cpu->cfg.ext_xtheadfmemidx = true;
527 cpu->cfg.ext_xtheadmac = true;
528 cpu->cfg.ext_xtheadmemidx = true;
529 cpu->cfg.ext_xtheadmempair = true;
530 cpu->cfg.ext_xtheadsync = true;
531
532 cpu->cfg.mvendorid = THEAD_VENDOR_ID;
533 #ifndef CONFIG_USER_ONLY
534 set_satp_mode_max_supported(cpu, VM_1_10_SV39);
535 th_register_custom_csrs(cpu);
536 #endif
537
538 /* inherited from parent obj via riscv_cpu_init() */
539 cpu->cfg.pmp = true;
540 }
541
rv64_veyron_v1_cpu_init(Object * obj)542 static void rv64_veyron_v1_cpu_init(Object *obj)
543 {
544 CPURISCVState *env = &RISCV_CPU(obj)->env;
545 RISCVCPU *cpu = RISCV_CPU(obj);
546
547 riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH);
548 env->priv_ver = PRIV_VERSION_1_12_0;
549
550 /* Enable ISA extensions */
551 cpu->cfg.mmu = true;
552 cpu->cfg.ext_zifencei = true;
553 cpu->cfg.ext_zicsr = true;
554 cpu->cfg.pmp = true;
555 cpu->cfg.ext_zicbom = true;
556 cpu->cfg.cbom_blocksize = 64;
557 cpu->cfg.cboz_blocksize = 64;
558 cpu->cfg.ext_zicboz = true;
559 cpu->cfg.ext_smaia = true;
560 cpu->cfg.ext_ssaia = true;
561 cpu->cfg.ext_sscofpmf = true;
562 cpu->cfg.ext_sstc = true;
563 cpu->cfg.ext_svinval = true;
564 cpu->cfg.ext_svnapot = true;
565 cpu->cfg.ext_svpbmt = true;
566 cpu->cfg.ext_smstateen = true;
567 cpu->cfg.ext_zba = true;
568 cpu->cfg.ext_zbb = true;
569 cpu->cfg.ext_zbc = true;
570 cpu->cfg.ext_zbs = true;
571 cpu->cfg.ext_XVentanaCondOps = true;
572
573 cpu->cfg.mvendorid = VEYRON_V1_MVENDORID;
574 cpu->cfg.marchid = VEYRON_V1_MARCHID;
575 cpu->cfg.mimpid = VEYRON_V1_MIMPID;
576
577 #ifndef CONFIG_USER_ONLY
578 set_satp_mode_max_supported(cpu, VM_1_10_SV48);
579 #endif
580 }
581
582 #ifdef CONFIG_TCG
rv128_base_cpu_init(Object * obj)583 static void rv128_base_cpu_init(Object *obj)
584 {
585 RISCVCPU *cpu = RISCV_CPU(obj);
586 CPURISCVState *env = &cpu->env;
587
588 if (qemu_tcg_mttcg_enabled()) {
589 /* Missing 128-bit aligned atomics */
590 error_report("128-bit RISC-V currently does not work with Multi "
591 "Threaded TCG. Please use: -accel tcg,thread=single");
592 exit(EXIT_FAILURE);
593 }
594
595 cpu->cfg.mmu = true;
596 cpu->cfg.pmp = true;
597
598 /* Set latest version of privileged specification */
599 env->priv_ver = PRIV_VERSION_LATEST;
600 #ifndef CONFIG_USER_ONLY
601 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57);
602 #endif
603 }
604 #endif /* CONFIG_TCG */
605
rv64i_bare_cpu_init(Object * obj)606 static void rv64i_bare_cpu_init(Object *obj)
607 {
608 CPURISCVState *env = &RISCV_CPU(obj)->env;
609 riscv_cpu_set_misa_ext(env, RVI);
610 }
611
rv64e_bare_cpu_init(Object * obj)612 static void rv64e_bare_cpu_init(Object *obj)
613 {
614 CPURISCVState *env = &RISCV_CPU(obj)->env;
615 riscv_cpu_set_misa_ext(env, RVE);
616 }
617
618 #endif /* !TARGET_RISCV64 */
619
620 #if defined(TARGET_RISCV32) || \
621 (defined(TARGET_RISCV64) && !defined(CONFIG_USER_ONLY))
622
rv32_base_cpu_init(Object * obj)623 static void rv32_base_cpu_init(Object *obj)
624 {
625 RISCVCPU *cpu = RISCV_CPU(obj);
626 CPURISCVState *env = &cpu->env;
627
628 cpu->cfg.mmu = true;
629 cpu->cfg.pmp = true;
630
631 /* Set latest version of privileged specification */
632 env->priv_ver = PRIV_VERSION_LATEST;
633 #ifndef CONFIG_USER_ONLY
634 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32);
635 #endif
636 }
637
rv32_sifive_u_cpu_init(Object * obj)638 static void rv32_sifive_u_cpu_init(Object *obj)
639 {
640 RISCVCPU *cpu = RISCV_CPU(obj);
641 CPURISCVState *env = &cpu->env;
642 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU);
643 env->priv_ver = PRIV_VERSION_1_10_0;
644 #ifndef CONFIG_USER_ONLY
645 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32);
646 #endif
647
648 /* inherited from parent obj via riscv_cpu_init() */
649 cpu->cfg.ext_zifencei = true;
650 cpu->cfg.ext_zicsr = true;
651 cpu->cfg.mmu = true;
652 cpu->cfg.pmp = true;
653 }
654
rv32_sifive_e_cpu_init(Object * obj)655 static void rv32_sifive_e_cpu_init(Object *obj)
656 {
657 CPURISCVState *env = &RISCV_CPU(obj)->env;
658 RISCVCPU *cpu = RISCV_CPU(obj);
659
660 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVC | RVU);
661 env->priv_ver = PRIV_VERSION_1_10_0;
662 #ifndef CONFIG_USER_ONLY
663 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
664 #endif
665
666 /* inherited from parent obj via riscv_cpu_init() */
667 cpu->cfg.ext_zifencei = true;
668 cpu->cfg.ext_zicsr = true;
669 cpu->cfg.pmp = true;
670 }
671
rv32_ibex_cpu_init(Object * obj)672 static void rv32_ibex_cpu_init(Object *obj)
673 {
674 CPURISCVState *env = &RISCV_CPU(obj)->env;
675 RISCVCPU *cpu = RISCV_CPU(obj);
676
677 riscv_cpu_set_misa_ext(env, RVI | RVM | RVC | RVU);
678 env->priv_ver = PRIV_VERSION_1_12_0;
679 #ifndef CONFIG_USER_ONLY
680 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
681 #endif
682 /* inherited from parent obj via riscv_cpu_init() */
683 cpu->cfg.ext_zifencei = true;
684 cpu->cfg.ext_zicsr = true;
685 cpu->cfg.pmp = true;
686 cpu->cfg.ext_smepmp = true;
687
688 cpu->cfg.ext_zba = true;
689 cpu->cfg.ext_zbb = true;
690 cpu->cfg.ext_zbc = true;
691 cpu->cfg.ext_zbs = true;
692 }
693
rv32_imafcu_nommu_cpu_init(Object * obj)694 static void rv32_imafcu_nommu_cpu_init(Object *obj)
695 {
696 CPURISCVState *env = &RISCV_CPU(obj)->env;
697 RISCVCPU *cpu = RISCV_CPU(obj);
698
699 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVC | RVU);
700 env->priv_ver = PRIV_VERSION_1_10_0;
701 #ifndef CONFIG_USER_ONLY
702 set_satp_mode_max_supported(cpu, VM_1_10_MBARE);
703 #endif
704
705 /* inherited from parent obj via riscv_cpu_init() */
706 cpu->cfg.ext_zifencei = true;
707 cpu->cfg.ext_zicsr = true;
708 cpu->cfg.pmp = true;
709 }
710
rv32i_bare_cpu_init(Object * obj)711 static void rv32i_bare_cpu_init(Object *obj)
712 {
713 CPURISCVState *env = &RISCV_CPU(obj)->env;
714 riscv_cpu_set_misa_ext(env, RVI);
715 }
716
rv32e_bare_cpu_init(Object * obj)717 static void rv32e_bare_cpu_init(Object *obj)
718 {
719 CPURISCVState *env = &RISCV_CPU(obj)->env;
720 riscv_cpu_set_misa_ext(env, RVE);
721 }
722 #endif
723
riscv_cpu_class_by_name(const char * cpu_model)724 static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model)
725 {
726 ObjectClass *oc;
727 char *typename;
728 char **cpuname;
729
730 cpuname = g_strsplit(cpu_model, ",", 1);
731 typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]);
732 oc = object_class_by_name(typename);
733 g_strfreev(cpuname);
734 g_free(typename);
735
736 return oc;
737 }
738
riscv_cpu_get_name(RISCVCPU * cpu)739 char *riscv_cpu_get_name(RISCVCPU *cpu)
740 {
741 RISCVCPUClass *rcc = RISCV_CPU_GET_CLASS(cpu);
742 const char *typename = object_class_get_name(OBJECT_CLASS(rcc));
743
744 g_assert(g_str_has_suffix(typename, RISCV_CPU_TYPE_SUFFIX));
745
746 return cpu_model_from_type(typename);
747 }
748
riscv_cpu_dump_state(CPUState * cs,FILE * f,int flags)749 static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags)
750 {
751 RISCVCPU *cpu = RISCV_CPU(cs);
752 CPURISCVState *env = &cpu->env;
753 int i, j;
754 uint8_t *p;
755
756 #if !defined(CONFIG_USER_ONLY)
757 if (riscv_has_ext(env, RVH)) {
758 qemu_fprintf(f, " %s %d\n", "V = ", env->virt_enabled);
759 }
760 #endif
761 qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc);
762 #ifndef CONFIG_USER_ONLY
763 {
764 static const int dump_csrs[] = {
765 CSR_MHARTID,
766 CSR_MSTATUS,
767 CSR_MSTATUSH,
768 /*
769 * CSR_SSTATUS is intentionally omitted here as its value
770 * can be figured out by looking at CSR_MSTATUS
771 */
772 CSR_HSTATUS,
773 CSR_VSSTATUS,
774 CSR_MIP,
775 CSR_MIE,
776 CSR_MIDELEG,
777 CSR_HIDELEG,
778 CSR_MEDELEG,
779 CSR_HEDELEG,
780 CSR_MTVEC,
781 CSR_STVEC,
782 CSR_VSTVEC,
783 CSR_MEPC,
784 CSR_SEPC,
785 CSR_VSEPC,
786 CSR_MCAUSE,
787 CSR_SCAUSE,
788 CSR_VSCAUSE,
789 CSR_MTVAL,
790 CSR_STVAL,
791 CSR_HTVAL,
792 CSR_MTVAL2,
793 CSR_MSCRATCH,
794 CSR_SSCRATCH,
795 CSR_SATP,
796 CSR_MMTE,
797 CSR_UPMBASE,
798 CSR_UPMMASK,
799 CSR_SPMBASE,
800 CSR_SPMMASK,
801 CSR_MPMBASE,
802 CSR_MPMMASK,
803 };
804
805 for (i = 0; i < ARRAY_SIZE(dump_csrs); ++i) {
806 int csrno = dump_csrs[i];
807 target_ulong val = 0;
808 RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0);
809
810 /*
811 * Rely on the smode, hmode, etc, predicates within csr.c
812 * to do the filtering of the registers that are present.
813 */
814 if (res == RISCV_EXCP_NONE) {
815 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n",
816 csr_ops[csrno].name, val);
817 }
818 }
819 }
820 #endif
821
822 for (i = 0; i < 32; i++) {
823 qemu_fprintf(f, " %-8s " TARGET_FMT_lx,
824 riscv_int_regnames[i], env->gpr[i]);
825 if ((i & 3) == 3) {
826 qemu_fprintf(f, "\n");
827 }
828 }
829 if (flags & CPU_DUMP_FPU) {
830 target_ulong val = 0;
831 RISCVException res = riscv_csrrw_debug(env, CSR_FCSR, &val, 0, 0);
832 if (res == RISCV_EXCP_NONE) {
833 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n",
834 csr_ops[CSR_FCSR].name, val);
835 }
836 for (i = 0; i < 32; i++) {
837 qemu_fprintf(f, " %-8s %016" PRIx64,
838 riscv_fpr_regnames[i], env->fpr[i]);
839 if ((i & 3) == 3) {
840 qemu_fprintf(f, "\n");
841 }
842 }
843 }
844 if (riscv_has_ext(env, RVV) && (flags & CPU_DUMP_VPU)) {
845 static const int dump_rvv_csrs[] = {
846 CSR_VSTART,
847 CSR_VXSAT,
848 CSR_VXRM,
849 CSR_VCSR,
850 CSR_VL,
851 CSR_VTYPE,
852 CSR_VLENB,
853 };
854 for (i = 0; i < ARRAY_SIZE(dump_rvv_csrs); ++i) {
855 int csrno = dump_rvv_csrs[i];
856 target_ulong val = 0;
857 RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0);
858
859 /*
860 * Rely on the smode, hmode, etc, predicates within csr.c
861 * to do the filtering of the registers that are present.
862 */
863 if (res == RISCV_EXCP_NONE) {
864 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n",
865 csr_ops[csrno].name, val);
866 }
867 }
868 uint16_t vlenb = cpu->cfg.vlenb;
869
870 for (i = 0; i < 32; i++) {
871 qemu_fprintf(f, " %-8s ", riscv_rvv_regnames[i]);
872 p = (uint8_t *)env->vreg;
873 for (j = vlenb - 1 ; j >= 0; j--) {
874 qemu_fprintf(f, "%02x", *(p + i * vlenb + BYTE(j)));
875 }
876 qemu_fprintf(f, "\n");
877 }
878 }
879 }
880
riscv_cpu_set_pc(CPUState * cs,vaddr value)881 static void riscv_cpu_set_pc(CPUState *cs, vaddr value)
882 {
883 RISCVCPU *cpu = RISCV_CPU(cs);
884 CPURISCVState *env = &cpu->env;
885
886 if (env->xl == MXL_RV32) {
887 env->pc = (int32_t)value;
888 } else {
889 env->pc = value;
890 }
891 }
892
riscv_cpu_get_pc(CPUState * cs)893 static vaddr riscv_cpu_get_pc(CPUState *cs)
894 {
895 RISCVCPU *cpu = RISCV_CPU(cs);
896 CPURISCVState *env = &cpu->env;
897
898 /* Match cpu_get_tb_cpu_state. */
899 if (env->xl == MXL_RV32) {
900 return env->pc & UINT32_MAX;
901 }
902 return env->pc;
903 }
904
riscv_cpu_has_work(CPUState * cs)905 bool riscv_cpu_has_work(CPUState *cs)
906 {
907 #ifndef CONFIG_USER_ONLY
908 RISCVCPU *cpu = RISCV_CPU(cs);
909 CPURISCVState *env = &cpu->env;
910 /*
911 * Definition of the WFI instruction requires it to ignore the privilege
912 * mode and delegation registers, but respect individual enables
913 */
914 return riscv_cpu_all_pending(env) != 0 ||
915 riscv_cpu_sirq_pending(env) != RISCV_EXCP_NONE ||
916 riscv_cpu_vsirq_pending(env) != RISCV_EXCP_NONE;
917 #else
918 return true;
919 #endif
920 }
921
riscv_cpu_mmu_index(CPUState * cs,bool ifetch)922 static int riscv_cpu_mmu_index(CPUState *cs, bool ifetch)
923 {
924 return riscv_env_mmu_index(cpu_env(cs), ifetch);
925 }
926
riscv_cpu_reset_hold(Object * obj,ResetType type)927 static void riscv_cpu_reset_hold(Object *obj, ResetType type)
928 {
929 #ifndef CONFIG_USER_ONLY
930 uint8_t iprio;
931 int i, irq, rdzero;
932 #endif
933 CPUState *cs = CPU(obj);
934 RISCVCPU *cpu = RISCV_CPU(cs);
935 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(obj);
936 CPURISCVState *env = &cpu->env;
937
938 if (mcc->parent_phases.hold) {
939 mcc->parent_phases.hold(obj, type);
940 }
941 #ifndef CONFIG_USER_ONLY
942 env->misa_mxl = mcc->misa_mxl_max;
943 env->priv = PRV_M;
944 env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV);
945 if (env->misa_mxl > MXL_RV32) {
946 /*
947 * The reset status of SXL/UXL is undefined, but mstatus is WARL
948 * and we must ensure that the value after init is valid for read.
949 */
950 env->mstatus = set_field(env->mstatus, MSTATUS64_SXL, env->misa_mxl);
951 env->mstatus = set_field(env->mstatus, MSTATUS64_UXL, env->misa_mxl);
952 if (riscv_has_ext(env, RVH)) {
953 env->vsstatus = set_field(env->vsstatus,
954 MSTATUS64_SXL, env->misa_mxl);
955 env->vsstatus = set_field(env->vsstatus,
956 MSTATUS64_UXL, env->misa_mxl);
957 env->mstatus_hs = set_field(env->mstatus_hs,
958 MSTATUS64_SXL, env->misa_mxl);
959 env->mstatus_hs = set_field(env->mstatus_hs,
960 MSTATUS64_UXL, env->misa_mxl);
961 }
962 }
963 env->mcause = 0;
964 env->miclaim = MIP_SGEIP;
965 env->pc = env->resetvec;
966 env->bins = 0;
967 env->two_stage_lookup = false;
968
969 env->menvcfg = (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) |
970 (!cpu->cfg.ext_svade && cpu->cfg.ext_svadu ?
971 MENVCFG_ADUE : 0);
972 env->henvcfg = 0;
973
974 /* Initialized default priorities of local interrupts. */
975 for (i = 0; i < ARRAY_SIZE(env->miprio); i++) {
976 iprio = riscv_cpu_default_priority(i);
977 env->miprio[i] = (i == IRQ_M_EXT) ? 0 : iprio;
978 env->siprio[i] = (i == IRQ_S_EXT) ? 0 : iprio;
979 env->hviprio[i] = 0;
980 }
981 i = 0;
982 while (!riscv_cpu_hviprio_index2irq(i, &irq, &rdzero)) {
983 if (!rdzero) {
984 env->hviprio[irq] = env->miprio[irq];
985 }
986 i++;
987 }
988 /* mmte is supposed to have pm.current hardwired to 1 */
989 env->mmte |= (EXT_STATUS_INITIAL | MMTE_M_PM_CURRENT);
990
991 /*
992 * Bits 10, 6, 2 and 12 of mideleg are read only 1 when the Hypervisor
993 * extension is enabled.
994 */
995 if (riscv_has_ext(env, RVH)) {
996 env->mideleg |= HS_MODE_INTERRUPTS;
997 }
998
999 /*
1000 * Clear mseccfg and unlock all the PMP entries upon reset.
1001 * This is allowed as per the priv and smepmp specifications
1002 * and is needed to clear stale entries across reboots.
1003 */
1004 if (riscv_cpu_cfg(env)->ext_smepmp) {
1005 env->mseccfg = 0;
1006 }
1007
1008 pmp_unlock_entries(env);
1009 #else
1010 env->priv = PRV_U;
1011 env->senvcfg = 0;
1012 env->menvcfg = 0;
1013 #endif
1014
1015 /* on reset elp is clear */
1016 env->elp = false;
1017 /* on reset ssp is set to 0 */
1018 env->ssp = 0;
1019
1020 env->xl = riscv_cpu_mxl(env);
1021 riscv_cpu_update_mask(env);
1022 cs->exception_index = RISCV_EXCP_NONE;
1023 env->load_res = -1;
1024 set_default_nan_mode(1, &env->fp_status);
1025 env->vill = true;
1026
1027 #ifndef CONFIG_USER_ONLY
1028 if (cpu->cfg.debug) {
1029 riscv_trigger_reset_hold(env);
1030 }
1031
1032 if (kvm_enabled()) {
1033 kvm_riscv_reset_vcpu(cpu);
1034 }
1035 #endif
1036 }
1037
riscv_cpu_disas_set_info(CPUState * s,disassemble_info * info)1038 static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info)
1039 {
1040 RISCVCPU *cpu = RISCV_CPU(s);
1041 CPURISCVState *env = &cpu->env;
1042 info->target_info = &cpu->cfg;
1043
1044 switch (env->xl) {
1045 case MXL_RV32:
1046 info->print_insn = print_insn_riscv32;
1047 break;
1048 case MXL_RV64:
1049 info->print_insn = print_insn_riscv64;
1050 break;
1051 case MXL_RV128:
1052 info->print_insn = print_insn_riscv128;
1053 break;
1054 default:
1055 g_assert_not_reached();
1056 }
1057 }
1058
1059 #ifndef CONFIG_USER_ONLY
riscv_cpu_satp_mode_finalize(RISCVCPU * cpu,Error ** errp)1060 static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp)
1061 {
1062 bool rv32 = riscv_cpu_is_32bit(cpu);
1063 uint8_t satp_mode_map_max, satp_mode_supported_max;
1064
1065 /* The CPU wants the OS to decide which satp mode to use */
1066 if (cpu->cfg.satp_mode.supported == 0) {
1067 return;
1068 }
1069
1070 satp_mode_supported_max =
1071 satp_mode_max_from_map(cpu->cfg.satp_mode.supported);
1072
1073 if (cpu->cfg.satp_mode.map == 0) {
1074 if (cpu->cfg.satp_mode.init == 0) {
1075 /* If unset by the user, we fallback to the default satp mode. */
1076 set_satp_mode_default_map(cpu);
1077 } else {
1078 /*
1079 * Find the lowest level that was disabled and then enable the
1080 * first valid level below which can be found in
1081 * valid_vm_1_10_32/64.
1082 */
1083 for (int i = 1; i < 16; ++i) {
1084 if ((cpu->cfg.satp_mode.init & (1 << i)) &&
1085 (cpu->cfg.satp_mode.supported & (1 << i))) {
1086 for (int j = i - 1; j >= 0; --j) {
1087 if (cpu->cfg.satp_mode.supported & (1 << j)) {
1088 cpu->cfg.satp_mode.map |= (1 << j);
1089 break;
1090 }
1091 }
1092 break;
1093 }
1094 }
1095 }
1096 }
1097
1098 satp_mode_map_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map);
1099
1100 /* Make sure the user asked for a supported configuration (HW and qemu) */
1101 if (satp_mode_map_max > satp_mode_supported_max) {
1102 error_setg(errp, "satp_mode %s is higher than hw max capability %s",
1103 satp_mode_str(satp_mode_map_max, rv32),
1104 satp_mode_str(satp_mode_supported_max, rv32));
1105 return;
1106 }
1107
1108 /*
1109 * Make sure the user did not ask for an invalid configuration as per
1110 * the specification.
1111 */
1112 if (!rv32) {
1113 for (int i = satp_mode_map_max - 1; i >= 0; --i) {
1114 if (!(cpu->cfg.satp_mode.map & (1 << i)) &&
1115 (cpu->cfg.satp_mode.init & (1 << i)) &&
1116 (cpu->cfg.satp_mode.supported & (1 << i))) {
1117 error_setg(errp, "cannot disable %s satp mode if %s "
1118 "is enabled", satp_mode_str(i, false),
1119 satp_mode_str(satp_mode_map_max, false));
1120 return;
1121 }
1122 }
1123 }
1124
1125 /* Finally expand the map so that all valid modes are set */
1126 for (int i = satp_mode_map_max - 1; i >= 0; --i) {
1127 if (cpu->cfg.satp_mode.supported & (1 << i)) {
1128 cpu->cfg.satp_mode.map |= (1 << i);
1129 }
1130 }
1131 }
1132 #endif
1133
riscv_cpu_finalize_features(RISCVCPU * cpu,Error ** errp)1134 void riscv_cpu_finalize_features(RISCVCPU *cpu, Error **errp)
1135 {
1136 Error *local_err = NULL;
1137
1138 #ifndef CONFIG_USER_ONLY
1139 riscv_cpu_satp_mode_finalize(cpu, &local_err);
1140 if (local_err != NULL) {
1141 error_propagate(errp, local_err);
1142 return;
1143 }
1144 #endif
1145
1146 if (tcg_enabled()) {
1147 riscv_tcg_cpu_finalize_features(cpu, &local_err);
1148 if (local_err != NULL) {
1149 error_propagate(errp, local_err);
1150 return;
1151 }
1152 riscv_tcg_cpu_finalize_dynamic_decoder(cpu);
1153 } else if (kvm_enabled()) {
1154 riscv_kvm_cpu_finalize_features(cpu, &local_err);
1155 if (local_err != NULL) {
1156 error_propagate(errp, local_err);
1157 return;
1158 }
1159 }
1160 }
1161
riscv_cpu_realize(DeviceState * dev,Error ** errp)1162 static void riscv_cpu_realize(DeviceState *dev, Error **errp)
1163 {
1164 CPUState *cs = CPU(dev);
1165 RISCVCPU *cpu = RISCV_CPU(dev);
1166 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev);
1167 Error *local_err = NULL;
1168
1169 cpu_exec_realizefn(cs, &local_err);
1170 if (local_err != NULL) {
1171 error_propagate(errp, local_err);
1172 return;
1173 }
1174
1175 riscv_cpu_finalize_features(cpu, &local_err);
1176 if (local_err != NULL) {
1177 error_propagate(errp, local_err);
1178 return;
1179 }
1180
1181 riscv_cpu_register_gdb_regs_for_features(cs);
1182
1183 #ifndef CONFIG_USER_ONLY
1184 if (cpu->cfg.debug) {
1185 riscv_trigger_realize(&cpu->env);
1186 }
1187 #endif
1188
1189 qemu_init_vcpu(cs);
1190 cpu_reset(cs);
1191
1192 mcc->parent_realize(dev, errp);
1193 }
1194
riscv_cpu_accelerator_compatible(RISCVCPU * cpu)1195 bool riscv_cpu_accelerator_compatible(RISCVCPU *cpu)
1196 {
1197 if (tcg_enabled()) {
1198 return riscv_cpu_tcg_compatible(cpu);
1199 }
1200
1201 return true;
1202 }
1203
1204 #ifndef CONFIG_USER_ONLY
cpu_riscv_get_satp(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1205 static void cpu_riscv_get_satp(Object *obj, Visitor *v, const char *name,
1206 void *opaque, Error **errp)
1207 {
1208 RISCVSATPMap *satp_map = opaque;
1209 uint8_t satp = satp_mode_from_str(name);
1210 bool value;
1211
1212 value = satp_map->map & (1 << satp);
1213
1214 visit_type_bool(v, name, &value, errp);
1215 }
1216
cpu_riscv_set_satp(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1217 static void cpu_riscv_set_satp(Object *obj, Visitor *v, const char *name,
1218 void *opaque, Error **errp)
1219 {
1220 RISCVSATPMap *satp_map = opaque;
1221 uint8_t satp = satp_mode_from_str(name);
1222 bool value;
1223
1224 if (!visit_type_bool(v, name, &value, errp)) {
1225 return;
1226 }
1227
1228 satp_map->map = deposit32(satp_map->map, satp, 1, value);
1229 satp_map->init |= 1 << satp;
1230 }
1231
riscv_add_satp_mode_properties(Object * obj)1232 void riscv_add_satp_mode_properties(Object *obj)
1233 {
1234 RISCVCPU *cpu = RISCV_CPU(obj);
1235
1236 if (cpu->env.misa_mxl == MXL_RV32) {
1237 object_property_add(obj, "sv32", "bool", cpu_riscv_get_satp,
1238 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1239 } else {
1240 object_property_add(obj, "sv39", "bool", cpu_riscv_get_satp,
1241 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1242 object_property_add(obj, "sv48", "bool", cpu_riscv_get_satp,
1243 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1244 object_property_add(obj, "sv57", "bool", cpu_riscv_get_satp,
1245 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1246 object_property_add(obj, "sv64", "bool", cpu_riscv_get_satp,
1247 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode);
1248 }
1249 }
1250
riscv_cpu_set_irq(void * opaque,int irq,int level)1251 static void riscv_cpu_set_irq(void *opaque, int irq, int level)
1252 {
1253 RISCVCPU *cpu = RISCV_CPU(opaque);
1254 CPURISCVState *env = &cpu->env;
1255
1256 if (irq < IRQ_LOCAL_MAX) {
1257 switch (irq) {
1258 case IRQ_U_SOFT:
1259 case IRQ_S_SOFT:
1260 case IRQ_VS_SOFT:
1261 case IRQ_M_SOFT:
1262 case IRQ_U_TIMER:
1263 case IRQ_S_TIMER:
1264 case IRQ_VS_TIMER:
1265 case IRQ_M_TIMER:
1266 case IRQ_U_EXT:
1267 case IRQ_VS_EXT:
1268 case IRQ_M_EXT:
1269 if (kvm_enabled()) {
1270 kvm_riscv_set_irq(cpu, irq, level);
1271 } else {
1272 riscv_cpu_update_mip(env, 1 << irq, BOOL_TO_MASK(level));
1273 }
1274 break;
1275 case IRQ_S_EXT:
1276 if (kvm_enabled()) {
1277 kvm_riscv_set_irq(cpu, irq, level);
1278 } else {
1279 env->external_seip = level;
1280 riscv_cpu_update_mip(env, 1 << irq,
1281 BOOL_TO_MASK(level | env->software_seip));
1282 }
1283 break;
1284 default:
1285 g_assert_not_reached();
1286 }
1287 } else if (irq < (IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX)) {
1288 /* Require H-extension for handling guest local interrupts */
1289 if (!riscv_has_ext(env, RVH)) {
1290 g_assert_not_reached();
1291 }
1292
1293 /* Compute bit position in HGEIP CSR */
1294 irq = irq - IRQ_LOCAL_MAX + 1;
1295 if (env->geilen < irq) {
1296 g_assert_not_reached();
1297 }
1298
1299 /* Update HGEIP CSR */
1300 env->hgeip &= ~((target_ulong)1 << irq);
1301 if (level) {
1302 env->hgeip |= (target_ulong)1 << irq;
1303 }
1304
1305 /* Update mip.SGEIP bit */
1306 riscv_cpu_update_mip(env, MIP_SGEIP,
1307 BOOL_TO_MASK(!!(env->hgeie & env->hgeip)));
1308 } else {
1309 g_assert_not_reached();
1310 }
1311 }
1312 #endif /* CONFIG_USER_ONLY */
1313
riscv_cpu_is_dynamic(Object * cpu_obj)1314 static bool riscv_cpu_is_dynamic(Object *cpu_obj)
1315 {
1316 return object_dynamic_cast(cpu_obj, TYPE_RISCV_DYNAMIC_CPU) != NULL;
1317 }
1318
riscv_cpu_post_init(Object * obj)1319 static void riscv_cpu_post_init(Object *obj)
1320 {
1321 accel_cpu_instance_init(CPU(obj));
1322 }
1323
riscv_cpu_init(Object * obj)1324 static void riscv_cpu_init(Object *obj)
1325 {
1326 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(obj);
1327 RISCVCPU *cpu = RISCV_CPU(obj);
1328 CPURISCVState *env = &cpu->env;
1329
1330 env->misa_mxl = mcc->misa_mxl_max;
1331
1332 #ifndef CONFIG_USER_ONLY
1333 qdev_init_gpio_in(DEVICE(obj), riscv_cpu_set_irq,
1334 IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX);
1335 #endif /* CONFIG_USER_ONLY */
1336
1337 general_user_opts = g_hash_table_new(g_str_hash, g_str_equal);
1338
1339 /*
1340 * The timer and performance counters extensions were supported
1341 * in QEMU before they were added as discrete extensions in the
1342 * ISA. To keep compatibility we'll always default them to 'true'
1343 * for all CPUs. Each accelerator will decide what to do when
1344 * users disable them.
1345 */
1346 RISCV_CPU(obj)->cfg.ext_zicntr = true;
1347 RISCV_CPU(obj)->cfg.ext_zihpm = true;
1348
1349 /* Default values for non-bool cpu properties */
1350 cpu->cfg.pmu_mask = MAKE_64BIT_MASK(3, 16);
1351 cpu->cfg.vlenb = 128 >> 3;
1352 cpu->cfg.elen = 64;
1353 cpu->cfg.cbom_blocksize = 64;
1354 cpu->cfg.cbop_blocksize = 64;
1355 cpu->cfg.cboz_blocksize = 64;
1356 cpu->env.vext_ver = VEXT_VERSION_1_00_0;
1357 }
1358
riscv_bare_cpu_init(Object * obj)1359 static void riscv_bare_cpu_init(Object *obj)
1360 {
1361 RISCVCPU *cpu = RISCV_CPU(obj);
1362
1363 /*
1364 * Bare CPUs do not inherit the timer and performance
1365 * counters from the parent class (see riscv_cpu_init()
1366 * for info on why the parent enables them).
1367 *
1368 * Users have to explicitly enable these counters for
1369 * bare CPUs.
1370 */
1371 cpu->cfg.ext_zicntr = false;
1372 cpu->cfg.ext_zihpm = false;
1373
1374 /* Set to QEMU's first supported priv version */
1375 cpu->env.priv_ver = PRIV_VERSION_1_10_0;
1376
1377 /*
1378 * Support all available satp_mode settings. The default
1379 * value will be set to MBARE if the user doesn't set
1380 * satp_mode manually (see set_satp_mode_default()).
1381 */
1382 #ifndef CONFIG_USER_ONLY
1383 set_satp_mode_max_supported(cpu, VM_1_10_SV64);
1384 #endif
1385 }
1386
1387 typedef struct misa_ext_info {
1388 const char *name;
1389 const char *description;
1390 } MISAExtInfo;
1391
1392 #define MISA_INFO_IDX(_bit) \
1393 __builtin_ctz(_bit)
1394
1395 #define MISA_EXT_INFO(_bit, _propname, _descr) \
1396 [MISA_INFO_IDX(_bit)] = {.name = _propname, .description = _descr}
1397
1398 static const MISAExtInfo misa_ext_info_arr[] = {
1399 MISA_EXT_INFO(RVA, "a", "Atomic instructions"),
1400 MISA_EXT_INFO(RVC, "c", "Compressed instructions"),
1401 MISA_EXT_INFO(RVD, "d", "Double-precision float point"),
1402 MISA_EXT_INFO(RVF, "f", "Single-precision float point"),
1403 MISA_EXT_INFO(RVI, "i", "Base integer instruction set"),
1404 MISA_EXT_INFO(RVE, "e", "Base integer instruction set (embedded)"),
1405 MISA_EXT_INFO(RVM, "m", "Integer multiplication and division"),
1406 MISA_EXT_INFO(RVS, "s", "Supervisor-level instructions"),
1407 MISA_EXT_INFO(RVU, "u", "User-level instructions"),
1408 MISA_EXT_INFO(RVH, "h", "Hypervisor"),
1409 MISA_EXT_INFO(RVJ, "x-j", "Dynamic translated languages"),
1410 MISA_EXT_INFO(RVV, "v", "Vector operations"),
1411 MISA_EXT_INFO(RVG, "g", "General purpose (IMAFD_Zicsr_Zifencei)"),
1412 MISA_EXT_INFO(RVB, "b", "Bit manipulation (Zba_Zbb_Zbs)")
1413 };
1414
riscv_cpu_validate_misa_mxl(RISCVCPUClass * mcc)1415 static void riscv_cpu_validate_misa_mxl(RISCVCPUClass *mcc)
1416 {
1417 CPUClass *cc = CPU_CLASS(mcc);
1418
1419 /* Validate that MISA_MXL is set properly. */
1420 switch (mcc->misa_mxl_max) {
1421 #ifdef TARGET_RISCV64
1422 case MXL_RV64:
1423 case MXL_RV128:
1424 cc->gdb_core_xml_file = "riscv-64bit-cpu.xml";
1425 break;
1426 #endif
1427 case MXL_RV32:
1428 cc->gdb_core_xml_file = "riscv-32bit-cpu.xml";
1429 break;
1430 default:
1431 g_assert_not_reached();
1432 }
1433 }
1434
riscv_validate_misa_info_idx(uint32_t bit)1435 static int riscv_validate_misa_info_idx(uint32_t bit)
1436 {
1437 int idx;
1438
1439 /*
1440 * Our lowest valid input (RVA) is 1 and
1441 * __builtin_ctz() is UB with zero.
1442 */
1443 g_assert(bit != 0);
1444 idx = MISA_INFO_IDX(bit);
1445
1446 g_assert(idx < ARRAY_SIZE(misa_ext_info_arr));
1447 return idx;
1448 }
1449
riscv_get_misa_ext_name(uint32_t bit)1450 const char *riscv_get_misa_ext_name(uint32_t bit)
1451 {
1452 int idx = riscv_validate_misa_info_idx(bit);
1453 const char *val = misa_ext_info_arr[idx].name;
1454
1455 g_assert(val != NULL);
1456 return val;
1457 }
1458
riscv_get_misa_ext_description(uint32_t bit)1459 const char *riscv_get_misa_ext_description(uint32_t bit)
1460 {
1461 int idx = riscv_validate_misa_info_idx(bit);
1462 const char *val = misa_ext_info_arr[idx].description;
1463
1464 g_assert(val != NULL);
1465 return val;
1466 }
1467
1468 #define MULTI_EXT_CFG_BOOL(_name, _prop, _defval) \
1469 {.name = _name, .offset = CPU_CFG_OFFSET(_prop), \
1470 .enabled = _defval}
1471
1472 const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = {
1473 /* Defaults for standard extensions */
1474 MULTI_EXT_CFG_BOOL("sscofpmf", ext_sscofpmf, false),
1475 MULTI_EXT_CFG_BOOL("smcntrpmf", ext_smcntrpmf, false),
1476 MULTI_EXT_CFG_BOOL("zifencei", ext_zifencei, true),
1477 MULTI_EXT_CFG_BOOL("zicfilp", ext_zicfilp, false),
1478 MULTI_EXT_CFG_BOOL("zicfiss", ext_zicfiss, false),
1479 MULTI_EXT_CFG_BOOL("zicsr", ext_zicsr, true),
1480 MULTI_EXT_CFG_BOOL("zihintntl", ext_zihintntl, true),
1481 MULTI_EXT_CFG_BOOL("zihintpause", ext_zihintpause, true),
1482 MULTI_EXT_CFG_BOOL("zimop", ext_zimop, false),
1483 MULTI_EXT_CFG_BOOL("zcmop", ext_zcmop, false),
1484 MULTI_EXT_CFG_BOOL("zacas", ext_zacas, false),
1485 MULTI_EXT_CFG_BOOL("zama16b", ext_zama16b, false),
1486 MULTI_EXT_CFG_BOOL("zabha", ext_zabha, false),
1487 MULTI_EXT_CFG_BOOL("zaamo", ext_zaamo, false),
1488 MULTI_EXT_CFG_BOOL("zalrsc", ext_zalrsc, false),
1489 MULTI_EXT_CFG_BOOL("zawrs", ext_zawrs, true),
1490 MULTI_EXT_CFG_BOOL("zfa", ext_zfa, true),
1491 MULTI_EXT_CFG_BOOL("zfbfmin", ext_zfbfmin, false),
1492 MULTI_EXT_CFG_BOOL("zfh", ext_zfh, false),
1493 MULTI_EXT_CFG_BOOL("zfhmin", ext_zfhmin, false),
1494 MULTI_EXT_CFG_BOOL("zve32f", ext_zve32f, false),
1495 MULTI_EXT_CFG_BOOL("zve32x", ext_zve32x, false),
1496 MULTI_EXT_CFG_BOOL("zve64f", ext_zve64f, false),
1497 MULTI_EXT_CFG_BOOL("zve64d", ext_zve64d, false),
1498 MULTI_EXT_CFG_BOOL("zve64x", ext_zve64x, false),
1499 MULTI_EXT_CFG_BOOL("zvfbfmin", ext_zvfbfmin, false),
1500 MULTI_EXT_CFG_BOOL("zvfbfwma", ext_zvfbfwma, false),
1501 MULTI_EXT_CFG_BOOL("zvfh", ext_zvfh, false),
1502 MULTI_EXT_CFG_BOOL("zvfhmin", ext_zvfhmin, false),
1503 MULTI_EXT_CFG_BOOL("sstc", ext_sstc, true),
1504
1505 MULTI_EXT_CFG_BOOL("smaia", ext_smaia, false),
1506 MULTI_EXT_CFG_BOOL("smepmp", ext_smepmp, false),
1507 MULTI_EXT_CFG_BOOL("smstateen", ext_smstateen, false),
1508 MULTI_EXT_CFG_BOOL("ssaia", ext_ssaia, false),
1509 MULTI_EXT_CFG_BOOL("svade", ext_svade, false),
1510 MULTI_EXT_CFG_BOOL("svadu", ext_svadu, true),
1511 MULTI_EXT_CFG_BOOL("svinval", ext_svinval, false),
1512 MULTI_EXT_CFG_BOOL("svnapot", ext_svnapot, false),
1513 MULTI_EXT_CFG_BOOL("svpbmt", ext_svpbmt, false),
1514 MULTI_EXT_CFG_BOOL("svvptc", ext_svvptc, true),
1515
1516 MULTI_EXT_CFG_BOOL("zicntr", ext_zicntr, true),
1517 MULTI_EXT_CFG_BOOL("zihpm", ext_zihpm, true),
1518
1519 MULTI_EXT_CFG_BOOL("zba", ext_zba, true),
1520 MULTI_EXT_CFG_BOOL("zbb", ext_zbb, true),
1521 MULTI_EXT_CFG_BOOL("zbc", ext_zbc, true),
1522 MULTI_EXT_CFG_BOOL("zbkb", ext_zbkb, false),
1523 MULTI_EXT_CFG_BOOL("zbkc", ext_zbkc, false),
1524 MULTI_EXT_CFG_BOOL("zbkx", ext_zbkx, false),
1525 MULTI_EXT_CFG_BOOL("zbs", ext_zbs, true),
1526 MULTI_EXT_CFG_BOOL("zk", ext_zk, false),
1527 MULTI_EXT_CFG_BOOL("zkn", ext_zkn, false),
1528 MULTI_EXT_CFG_BOOL("zknd", ext_zknd, false),
1529 MULTI_EXT_CFG_BOOL("zkne", ext_zkne, false),
1530 MULTI_EXT_CFG_BOOL("zknh", ext_zknh, false),
1531 MULTI_EXT_CFG_BOOL("zkr", ext_zkr, false),
1532 MULTI_EXT_CFG_BOOL("zks", ext_zks, false),
1533 MULTI_EXT_CFG_BOOL("zksed", ext_zksed, false),
1534 MULTI_EXT_CFG_BOOL("zksh", ext_zksh, false),
1535 MULTI_EXT_CFG_BOOL("zkt", ext_zkt, false),
1536 MULTI_EXT_CFG_BOOL("ztso", ext_ztso, false),
1537
1538 MULTI_EXT_CFG_BOOL("zdinx", ext_zdinx, false),
1539 MULTI_EXT_CFG_BOOL("zfinx", ext_zfinx, false),
1540 MULTI_EXT_CFG_BOOL("zhinx", ext_zhinx, false),
1541 MULTI_EXT_CFG_BOOL("zhinxmin", ext_zhinxmin, false),
1542
1543 MULTI_EXT_CFG_BOOL("zicbom", ext_zicbom, true),
1544 MULTI_EXT_CFG_BOOL("zicbop", ext_zicbop, true),
1545 MULTI_EXT_CFG_BOOL("zicboz", ext_zicboz, true),
1546
1547 MULTI_EXT_CFG_BOOL("zmmul", ext_zmmul, false),
1548
1549 MULTI_EXT_CFG_BOOL("zca", ext_zca, false),
1550 MULTI_EXT_CFG_BOOL("zcb", ext_zcb, false),
1551 MULTI_EXT_CFG_BOOL("zcd", ext_zcd, false),
1552 MULTI_EXT_CFG_BOOL("zce", ext_zce, false),
1553 MULTI_EXT_CFG_BOOL("zcf", ext_zcf, false),
1554 MULTI_EXT_CFG_BOOL("zcmp", ext_zcmp, false),
1555 MULTI_EXT_CFG_BOOL("zcmt", ext_zcmt, false),
1556 MULTI_EXT_CFG_BOOL("zicond", ext_zicond, false),
1557
1558 /* Vector cryptography extensions */
1559 MULTI_EXT_CFG_BOOL("zvbb", ext_zvbb, false),
1560 MULTI_EXT_CFG_BOOL("zvbc", ext_zvbc, false),
1561 MULTI_EXT_CFG_BOOL("zvkb", ext_zvkb, false),
1562 MULTI_EXT_CFG_BOOL("zvkg", ext_zvkg, false),
1563 MULTI_EXT_CFG_BOOL("zvkned", ext_zvkned, false),
1564 MULTI_EXT_CFG_BOOL("zvknha", ext_zvknha, false),
1565 MULTI_EXT_CFG_BOOL("zvknhb", ext_zvknhb, false),
1566 MULTI_EXT_CFG_BOOL("zvksed", ext_zvksed, false),
1567 MULTI_EXT_CFG_BOOL("zvksh", ext_zvksh, false),
1568 MULTI_EXT_CFG_BOOL("zvkt", ext_zvkt, false),
1569 MULTI_EXT_CFG_BOOL("zvkn", ext_zvkn, false),
1570 MULTI_EXT_CFG_BOOL("zvknc", ext_zvknc, false),
1571 MULTI_EXT_CFG_BOOL("zvkng", ext_zvkng, false),
1572 MULTI_EXT_CFG_BOOL("zvks", ext_zvks, false),
1573 MULTI_EXT_CFG_BOOL("zvksc", ext_zvksc, false),
1574 MULTI_EXT_CFG_BOOL("zvksg", ext_zvksg, false),
1575
1576 DEFINE_PROP_END_OF_LIST(),
1577 };
1578
1579 const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[] = {
1580 MULTI_EXT_CFG_BOOL("xtheadba", ext_xtheadba, false),
1581 MULTI_EXT_CFG_BOOL("xtheadbb", ext_xtheadbb, false),
1582 MULTI_EXT_CFG_BOOL("xtheadbs", ext_xtheadbs, false),
1583 MULTI_EXT_CFG_BOOL("xtheadcmo", ext_xtheadcmo, false),
1584 MULTI_EXT_CFG_BOOL("xtheadcondmov", ext_xtheadcondmov, false),
1585 MULTI_EXT_CFG_BOOL("xtheadfmemidx", ext_xtheadfmemidx, false),
1586 MULTI_EXT_CFG_BOOL("xtheadfmv", ext_xtheadfmv, false),
1587 MULTI_EXT_CFG_BOOL("xtheadmac", ext_xtheadmac, false),
1588 MULTI_EXT_CFG_BOOL("xtheadmemidx", ext_xtheadmemidx, false),
1589 MULTI_EXT_CFG_BOOL("xtheadmempair", ext_xtheadmempair, false),
1590 MULTI_EXT_CFG_BOOL("xtheadsync", ext_xtheadsync, false),
1591 MULTI_EXT_CFG_BOOL("xventanacondops", ext_XVentanaCondOps, false),
1592
1593 DEFINE_PROP_END_OF_LIST(),
1594 };
1595
1596 /* These are experimental so mark with 'x-' */
1597 const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = {
1598 DEFINE_PROP_END_OF_LIST(),
1599 };
1600
1601 /*
1602 * 'Named features' is the name we give to extensions that we
1603 * don't want to expose to users. They are either immutable
1604 * (always enabled/disable) or they'll vary depending on
1605 * the resulting CPU state. They have riscv,isa strings
1606 * and priv_ver like regular extensions.
1607 */
1608 const RISCVCPUMultiExtConfig riscv_cpu_named_features[] = {
1609 MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true),
1610
1611 DEFINE_PROP_END_OF_LIST(),
1612 };
1613
1614 /* Deprecated entries marked for future removal */
1615 const RISCVCPUMultiExtConfig riscv_cpu_deprecated_exts[] = {
1616 MULTI_EXT_CFG_BOOL("Zifencei", ext_zifencei, true),
1617 MULTI_EXT_CFG_BOOL("Zicsr", ext_zicsr, true),
1618 MULTI_EXT_CFG_BOOL("Zihintntl", ext_zihintntl, true),
1619 MULTI_EXT_CFG_BOOL("Zihintpause", ext_zihintpause, true),
1620 MULTI_EXT_CFG_BOOL("Zawrs", ext_zawrs, true),
1621 MULTI_EXT_CFG_BOOL("Zfa", ext_zfa, true),
1622 MULTI_EXT_CFG_BOOL("Zfh", ext_zfh, false),
1623 MULTI_EXT_CFG_BOOL("Zfhmin", ext_zfhmin, false),
1624 MULTI_EXT_CFG_BOOL("Zve32f", ext_zve32f, false),
1625 MULTI_EXT_CFG_BOOL("Zve64f", ext_zve64f, false),
1626 MULTI_EXT_CFG_BOOL("Zve64d", ext_zve64d, false),
1627
1628 DEFINE_PROP_END_OF_LIST(),
1629 };
1630
cpu_set_prop_err(RISCVCPU * cpu,const char * propname,Error ** errp)1631 static void cpu_set_prop_err(RISCVCPU *cpu, const char *propname,
1632 Error **errp)
1633 {
1634 g_autofree char *cpuname = riscv_cpu_get_name(cpu);
1635 error_setg(errp, "CPU '%s' does not allow changing the value of '%s'",
1636 cpuname, propname);
1637 }
1638
prop_pmu_num_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1639 static void prop_pmu_num_set(Object *obj, Visitor *v, const char *name,
1640 void *opaque, Error **errp)
1641 {
1642 RISCVCPU *cpu = RISCV_CPU(obj);
1643 uint8_t pmu_num, curr_pmu_num;
1644 uint32_t pmu_mask;
1645
1646 visit_type_uint8(v, name, &pmu_num, errp);
1647
1648 curr_pmu_num = ctpop32(cpu->cfg.pmu_mask);
1649
1650 if (pmu_num != curr_pmu_num && riscv_cpu_is_vendor(obj)) {
1651 cpu_set_prop_err(cpu, name, errp);
1652 error_append_hint(errp, "Current '%s' val: %u\n",
1653 name, curr_pmu_num);
1654 return;
1655 }
1656
1657 if (pmu_num > (RV_MAX_MHPMCOUNTERS - 3)) {
1658 error_setg(errp, "Number of counters exceeds maximum available");
1659 return;
1660 }
1661
1662 if (pmu_num == 0) {
1663 pmu_mask = 0;
1664 } else {
1665 pmu_mask = MAKE_64BIT_MASK(3, pmu_num);
1666 }
1667
1668 warn_report("\"pmu-num\" property is deprecated; use \"pmu-mask\"");
1669 cpu->cfg.pmu_mask = pmu_mask;
1670 cpu_option_add_user_setting("pmu-mask", pmu_mask);
1671 }
1672
prop_pmu_num_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1673 static void prop_pmu_num_get(Object *obj, Visitor *v, const char *name,
1674 void *opaque, Error **errp)
1675 {
1676 RISCVCPU *cpu = RISCV_CPU(obj);
1677 uint8_t pmu_num = ctpop32(cpu->cfg.pmu_mask);
1678
1679 visit_type_uint8(v, name, &pmu_num, errp);
1680 }
1681
1682 static const PropertyInfo prop_pmu_num = {
1683 .name = "pmu-num",
1684 .get = prop_pmu_num_get,
1685 .set = prop_pmu_num_set,
1686 };
1687
prop_pmu_mask_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1688 static void prop_pmu_mask_set(Object *obj, Visitor *v, const char *name,
1689 void *opaque, Error **errp)
1690 {
1691 RISCVCPU *cpu = RISCV_CPU(obj);
1692 uint32_t value;
1693 uint8_t pmu_num;
1694
1695 visit_type_uint32(v, name, &value, errp);
1696
1697 if (value != cpu->cfg.pmu_mask && riscv_cpu_is_vendor(obj)) {
1698 cpu_set_prop_err(cpu, name, errp);
1699 error_append_hint(errp, "Current '%s' val: %x\n",
1700 name, cpu->cfg.pmu_mask);
1701 return;
1702 }
1703
1704 pmu_num = ctpop32(value);
1705
1706 if (pmu_num > (RV_MAX_MHPMCOUNTERS - 3)) {
1707 error_setg(errp, "Number of counters exceeds maximum available");
1708 return;
1709 }
1710
1711 cpu_option_add_user_setting(name, value);
1712 cpu->cfg.pmu_mask = value;
1713 }
1714
prop_pmu_mask_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1715 static void prop_pmu_mask_get(Object *obj, Visitor *v, const char *name,
1716 void *opaque, Error **errp)
1717 {
1718 uint8_t pmu_mask = RISCV_CPU(obj)->cfg.pmu_mask;
1719
1720 visit_type_uint8(v, name, &pmu_mask, errp);
1721 }
1722
1723 static const PropertyInfo prop_pmu_mask = {
1724 .name = "pmu-mask",
1725 .get = prop_pmu_mask_get,
1726 .set = prop_pmu_mask_set,
1727 };
1728
prop_mmu_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1729 static void prop_mmu_set(Object *obj, Visitor *v, const char *name,
1730 void *opaque, Error **errp)
1731 {
1732 RISCVCPU *cpu = RISCV_CPU(obj);
1733 bool value;
1734
1735 visit_type_bool(v, name, &value, errp);
1736
1737 if (cpu->cfg.mmu != value && riscv_cpu_is_vendor(obj)) {
1738 cpu_set_prop_err(cpu, "mmu", errp);
1739 return;
1740 }
1741
1742 cpu_option_add_user_setting(name, value);
1743 cpu->cfg.mmu = value;
1744 }
1745
prop_mmu_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1746 static void prop_mmu_get(Object *obj, Visitor *v, const char *name,
1747 void *opaque, Error **errp)
1748 {
1749 bool value = RISCV_CPU(obj)->cfg.mmu;
1750
1751 visit_type_bool(v, name, &value, errp);
1752 }
1753
1754 static const PropertyInfo prop_mmu = {
1755 .name = "mmu",
1756 .get = prop_mmu_get,
1757 .set = prop_mmu_set,
1758 };
1759
prop_pmp_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1760 static void prop_pmp_set(Object *obj, Visitor *v, const char *name,
1761 void *opaque, Error **errp)
1762 {
1763 RISCVCPU *cpu = RISCV_CPU(obj);
1764 bool value;
1765
1766 visit_type_bool(v, name, &value, errp);
1767
1768 if (cpu->cfg.pmp != value && riscv_cpu_is_vendor(obj)) {
1769 cpu_set_prop_err(cpu, name, errp);
1770 return;
1771 }
1772
1773 cpu_option_add_user_setting(name, value);
1774 cpu->cfg.pmp = value;
1775 }
1776
prop_pmp_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1777 static void prop_pmp_get(Object *obj, Visitor *v, const char *name,
1778 void *opaque, Error **errp)
1779 {
1780 bool value = RISCV_CPU(obj)->cfg.pmp;
1781
1782 visit_type_bool(v, name, &value, errp);
1783 }
1784
1785 static const PropertyInfo prop_pmp = {
1786 .name = "pmp",
1787 .get = prop_pmp_get,
1788 .set = prop_pmp_set,
1789 };
1790
priv_spec_from_str(const char * priv_spec_str)1791 static int priv_spec_from_str(const char *priv_spec_str)
1792 {
1793 int priv_version = -1;
1794
1795 if (!g_strcmp0(priv_spec_str, PRIV_VER_1_13_0_STR)) {
1796 priv_version = PRIV_VERSION_1_13_0;
1797 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_12_0_STR)) {
1798 priv_version = PRIV_VERSION_1_12_0;
1799 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_11_0_STR)) {
1800 priv_version = PRIV_VERSION_1_11_0;
1801 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_10_0_STR)) {
1802 priv_version = PRIV_VERSION_1_10_0;
1803 }
1804
1805 return priv_version;
1806 }
1807
priv_spec_to_str(int priv_version)1808 const char *priv_spec_to_str(int priv_version)
1809 {
1810 switch (priv_version) {
1811 case PRIV_VERSION_1_10_0:
1812 return PRIV_VER_1_10_0_STR;
1813 case PRIV_VERSION_1_11_0:
1814 return PRIV_VER_1_11_0_STR;
1815 case PRIV_VERSION_1_12_0:
1816 return PRIV_VER_1_12_0_STR;
1817 case PRIV_VERSION_1_13_0:
1818 return PRIV_VER_1_13_0_STR;
1819 default:
1820 return NULL;
1821 }
1822 }
1823
prop_priv_spec_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1824 static void prop_priv_spec_set(Object *obj, Visitor *v, const char *name,
1825 void *opaque, Error **errp)
1826 {
1827 RISCVCPU *cpu = RISCV_CPU(obj);
1828 g_autofree char *value = NULL;
1829 int priv_version = -1;
1830
1831 visit_type_str(v, name, &value, errp);
1832
1833 priv_version = priv_spec_from_str(value);
1834 if (priv_version < 0) {
1835 error_setg(errp, "Unsupported privilege spec version '%s'", value);
1836 return;
1837 }
1838
1839 if (priv_version != cpu->env.priv_ver && riscv_cpu_is_vendor(obj)) {
1840 cpu_set_prop_err(cpu, name, errp);
1841 error_append_hint(errp, "Current '%s' val: %s\n", name,
1842 object_property_get_str(obj, name, NULL));
1843 return;
1844 }
1845
1846 cpu_option_add_user_setting(name, priv_version);
1847 cpu->env.priv_ver = priv_version;
1848 }
1849
prop_priv_spec_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1850 static void prop_priv_spec_get(Object *obj, Visitor *v, const char *name,
1851 void *opaque, Error **errp)
1852 {
1853 RISCVCPU *cpu = RISCV_CPU(obj);
1854 const char *value = priv_spec_to_str(cpu->env.priv_ver);
1855
1856 visit_type_str(v, name, (char **)&value, errp);
1857 }
1858
1859 static const PropertyInfo prop_priv_spec = {
1860 .name = "priv_spec",
1861 .get = prop_priv_spec_get,
1862 .set = prop_priv_spec_set,
1863 };
1864
prop_vext_spec_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1865 static void prop_vext_spec_set(Object *obj, Visitor *v, const char *name,
1866 void *opaque, Error **errp)
1867 {
1868 RISCVCPU *cpu = RISCV_CPU(obj);
1869 g_autofree char *value = NULL;
1870
1871 visit_type_str(v, name, &value, errp);
1872
1873 if (g_strcmp0(value, VEXT_VER_1_00_0_STR) != 0) {
1874 error_setg(errp, "Unsupported vector spec version '%s'", value);
1875 return;
1876 }
1877
1878 cpu_option_add_user_setting(name, VEXT_VERSION_1_00_0);
1879 cpu->env.vext_ver = VEXT_VERSION_1_00_0;
1880 }
1881
prop_vext_spec_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1882 static void prop_vext_spec_get(Object *obj, Visitor *v, const char *name,
1883 void *opaque, Error **errp)
1884 {
1885 const char *value = VEXT_VER_1_00_0_STR;
1886
1887 visit_type_str(v, name, (char **)&value, errp);
1888 }
1889
1890 static const PropertyInfo prop_vext_spec = {
1891 .name = "vext_spec",
1892 .get = prop_vext_spec_get,
1893 .set = prop_vext_spec_set,
1894 };
1895
prop_vlen_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1896 static void prop_vlen_set(Object *obj, Visitor *v, const char *name,
1897 void *opaque, Error **errp)
1898 {
1899 RISCVCPU *cpu = RISCV_CPU(obj);
1900 uint16_t value;
1901
1902 if (!visit_type_uint16(v, name, &value, errp)) {
1903 return;
1904 }
1905
1906 if (!is_power_of_2(value)) {
1907 error_setg(errp, "Vector extension VLEN must be power of 2");
1908 return;
1909 }
1910
1911 if (value != cpu->cfg.vlenb && riscv_cpu_is_vendor(obj)) {
1912 cpu_set_prop_err(cpu, name, errp);
1913 error_append_hint(errp, "Current '%s' val: %u\n",
1914 name, cpu->cfg.vlenb << 3);
1915 return;
1916 }
1917
1918 cpu_option_add_user_setting(name, value);
1919 cpu->cfg.vlenb = value >> 3;
1920 }
1921
prop_vlen_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1922 static void prop_vlen_get(Object *obj, Visitor *v, const char *name,
1923 void *opaque, Error **errp)
1924 {
1925 uint16_t value = RISCV_CPU(obj)->cfg.vlenb << 3;
1926
1927 visit_type_uint16(v, name, &value, errp);
1928 }
1929
1930 static const PropertyInfo prop_vlen = {
1931 .name = "vlen",
1932 .get = prop_vlen_get,
1933 .set = prop_vlen_set,
1934 };
1935
prop_elen_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1936 static void prop_elen_set(Object *obj, Visitor *v, const char *name,
1937 void *opaque, Error **errp)
1938 {
1939 RISCVCPU *cpu = RISCV_CPU(obj);
1940 uint16_t value;
1941
1942 if (!visit_type_uint16(v, name, &value, errp)) {
1943 return;
1944 }
1945
1946 if (!is_power_of_2(value)) {
1947 error_setg(errp, "Vector extension ELEN must be power of 2");
1948 return;
1949 }
1950
1951 if (value != cpu->cfg.elen && riscv_cpu_is_vendor(obj)) {
1952 cpu_set_prop_err(cpu, name, errp);
1953 error_append_hint(errp, "Current '%s' val: %u\n",
1954 name, cpu->cfg.elen);
1955 return;
1956 }
1957
1958 cpu_option_add_user_setting(name, value);
1959 cpu->cfg.elen = value;
1960 }
1961
prop_elen_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1962 static void prop_elen_get(Object *obj, Visitor *v, const char *name,
1963 void *opaque, Error **errp)
1964 {
1965 uint16_t value = RISCV_CPU(obj)->cfg.elen;
1966
1967 visit_type_uint16(v, name, &value, errp);
1968 }
1969
1970 static const PropertyInfo prop_elen = {
1971 .name = "elen",
1972 .get = prop_elen_get,
1973 .set = prop_elen_set,
1974 };
1975
prop_cbom_blksize_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1976 static void prop_cbom_blksize_set(Object *obj, Visitor *v, const char *name,
1977 void *opaque, Error **errp)
1978 {
1979 RISCVCPU *cpu = RISCV_CPU(obj);
1980 uint16_t value;
1981
1982 if (!visit_type_uint16(v, name, &value, errp)) {
1983 return;
1984 }
1985
1986 if (value != cpu->cfg.cbom_blocksize && riscv_cpu_is_vendor(obj)) {
1987 cpu_set_prop_err(cpu, name, errp);
1988 error_append_hint(errp, "Current '%s' val: %u\n",
1989 name, cpu->cfg.cbom_blocksize);
1990 return;
1991 }
1992
1993 cpu_option_add_user_setting(name, value);
1994 cpu->cfg.cbom_blocksize = value;
1995 }
1996
prop_cbom_blksize_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)1997 static void prop_cbom_blksize_get(Object *obj, Visitor *v, const char *name,
1998 void *opaque, Error **errp)
1999 {
2000 uint16_t value = RISCV_CPU(obj)->cfg.cbom_blocksize;
2001
2002 visit_type_uint16(v, name, &value, errp);
2003 }
2004
2005 static const PropertyInfo prop_cbom_blksize = {
2006 .name = "cbom_blocksize",
2007 .get = prop_cbom_blksize_get,
2008 .set = prop_cbom_blksize_set,
2009 };
2010
prop_cbop_blksize_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2011 static void prop_cbop_blksize_set(Object *obj, Visitor *v, const char *name,
2012 void *opaque, Error **errp)
2013 {
2014 RISCVCPU *cpu = RISCV_CPU(obj);
2015 uint16_t value;
2016
2017 if (!visit_type_uint16(v, name, &value, errp)) {
2018 return;
2019 }
2020
2021 if (value != cpu->cfg.cbop_blocksize && riscv_cpu_is_vendor(obj)) {
2022 cpu_set_prop_err(cpu, name, errp);
2023 error_append_hint(errp, "Current '%s' val: %u\n",
2024 name, cpu->cfg.cbop_blocksize);
2025 return;
2026 }
2027
2028 cpu_option_add_user_setting(name, value);
2029 cpu->cfg.cbop_blocksize = value;
2030 }
2031
prop_cbop_blksize_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2032 static void prop_cbop_blksize_get(Object *obj, Visitor *v, const char *name,
2033 void *opaque, Error **errp)
2034 {
2035 uint16_t value = RISCV_CPU(obj)->cfg.cbop_blocksize;
2036
2037 visit_type_uint16(v, name, &value, errp);
2038 }
2039
2040 static const PropertyInfo prop_cbop_blksize = {
2041 .name = "cbop_blocksize",
2042 .get = prop_cbop_blksize_get,
2043 .set = prop_cbop_blksize_set,
2044 };
2045
prop_cboz_blksize_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2046 static void prop_cboz_blksize_set(Object *obj, Visitor *v, const char *name,
2047 void *opaque, Error **errp)
2048 {
2049 RISCVCPU *cpu = RISCV_CPU(obj);
2050 uint16_t value;
2051
2052 if (!visit_type_uint16(v, name, &value, errp)) {
2053 return;
2054 }
2055
2056 if (value != cpu->cfg.cboz_blocksize && riscv_cpu_is_vendor(obj)) {
2057 cpu_set_prop_err(cpu, name, errp);
2058 error_append_hint(errp, "Current '%s' val: %u\n",
2059 name, cpu->cfg.cboz_blocksize);
2060 return;
2061 }
2062
2063 cpu_option_add_user_setting(name, value);
2064 cpu->cfg.cboz_blocksize = value;
2065 }
2066
prop_cboz_blksize_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2067 static void prop_cboz_blksize_get(Object *obj, Visitor *v, const char *name,
2068 void *opaque, Error **errp)
2069 {
2070 uint16_t value = RISCV_CPU(obj)->cfg.cboz_blocksize;
2071
2072 visit_type_uint16(v, name, &value, errp);
2073 }
2074
2075 static const PropertyInfo prop_cboz_blksize = {
2076 .name = "cboz_blocksize",
2077 .get = prop_cboz_blksize_get,
2078 .set = prop_cboz_blksize_set,
2079 };
2080
prop_mvendorid_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2081 static void prop_mvendorid_set(Object *obj, Visitor *v, const char *name,
2082 void *opaque, Error **errp)
2083 {
2084 bool dynamic_cpu = riscv_cpu_is_dynamic(obj);
2085 RISCVCPU *cpu = RISCV_CPU(obj);
2086 uint32_t prev_val = cpu->cfg.mvendorid;
2087 uint32_t value;
2088
2089 if (!visit_type_uint32(v, name, &value, errp)) {
2090 return;
2091 }
2092
2093 if (!dynamic_cpu && prev_val != value) {
2094 error_setg(errp, "Unable to change %s mvendorid (0x%x)",
2095 object_get_typename(obj), prev_val);
2096 return;
2097 }
2098
2099 cpu->cfg.mvendorid = value;
2100 }
2101
prop_mvendorid_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2102 static void prop_mvendorid_get(Object *obj, Visitor *v, const char *name,
2103 void *opaque, Error **errp)
2104 {
2105 uint32_t value = RISCV_CPU(obj)->cfg.mvendorid;
2106
2107 visit_type_uint32(v, name, &value, errp);
2108 }
2109
2110 static const PropertyInfo prop_mvendorid = {
2111 .name = "mvendorid",
2112 .get = prop_mvendorid_get,
2113 .set = prop_mvendorid_set,
2114 };
2115
prop_mimpid_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2116 static void prop_mimpid_set(Object *obj, Visitor *v, const char *name,
2117 void *opaque, Error **errp)
2118 {
2119 bool dynamic_cpu = riscv_cpu_is_dynamic(obj);
2120 RISCVCPU *cpu = RISCV_CPU(obj);
2121 uint64_t prev_val = cpu->cfg.mimpid;
2122 uint64_t value;
2123
2124 if (!visit_type_uint64(v, name, &value, errp)) {
2125 return;
2126 }
2127
2128 if (!dynamic_cpu && prev_val != value) {
2129 error_setg(errp, "Unable to change %s mimpid (0x%" PRIu64 ")",
2130 object_get_typename(obj), prev_val);
2131 return;
2132 }
2133
2134 cpu->cfg.mimpid = value;
2135 }
2136
prop_mimpid_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2137 static void prop_mimpid_get(Object *obj, Visitor *v, const char *name,
2138 void *opaque, Error **errp)
2139 {
2140 uint64_t value = RISCV_CPU(obj)->cfg.mimpid;
2141
2142 visit_type_uint64(v, name, &value, errp);
2143 }
2144
2145 static const PropertyInfo prop_mimpid = {
2146 .name = "mimpid",
2147 .get = prop_mimpid_get,
2148 .set = prop_mimpid_set,
2149 };
2150
prop_marchid_set(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2151 static void prop_marchid_set(Object *obj, Visitor *v, const char *name,
2152 void *opaque, Error **errp)
2153 {
2154 bool dynamic_cpu = riscv_cpu_is_dynamic(obj);
2155 RISCVCPU *cpu = RISCV_CPU(obj);
2156 uint64_t prev_val = cpu->cfg.marchid;
2157 uint64_t value, invalid_val;
2158 uint32_t mxlen = 0;
2159
2160 if (!visit_type_uint64(v, name, &value, errp)) {
2161 return;
2162 }
2163
2164 if (!dynamic_cpu && prev_val != value) {
2165 error_setg(errp, "Unable to change %s marchid (0x%" PRIu64 ")",
2166 object_get_typename(obj), prev_val);
2167 return;
2168 }
2169
2170 switch (riscv_cpu_mxl(&cpu->env)) {
2171 case MXL_RV32:
2172 mxlen = 32;
2173 break;
2174 case MXL_RV64:
2175 case MXL_RV128:
2176 mxlen = 64;
2177 break;
2178 default:
2179 g_assert_not_reached();
2180 }
2181
2182 invalid_val = 1LL << (mxlen - 1);
2183
2184 if (value == invalid_val) {
2185 error_setg(errp, "Unable to set marchid with MSB (%u) bit set "
2186 "and the remaining bits zero", mxlen);
2187 return;
2188 }
2189
2190 cpu->cfg.marchid = value;
2191 }
2192
prop_marchid_get(Object * obj,Visitor * v,const char * name,void * opaque,Error ** errp)2193 static void prop_marchid_get(Object *obj, Visitor *v, const char *name,
2194 void *opaque, Error **errp)
2195 {
2196 uint64_t value = RISCV_CPU(obj)->cfg.marchid;
2197
2198 visit_type_uint64(v, name, &value, errp);
2199 }
2200
2201 static const PropertyInfo prop_marchid = {
2202 .name = "marchid",
2203 .get = prop_marchid_get,
2204 .set = prop_marchid_set,
2205 };
2206
2207 /*
2208 * RVA22U64 defines some 'named features' that are cache
2209 * related: Za64rs, Zic64b, Ziccif, Ziccrse, Ziccamoa
2210 * and Zicclsm. They are always implemented in TCG and
2211 * doesn't need to be manually enabled by the profile.
2212 */
2213 static RISCVCPUProfile RVA22U64 = {
2214 .parent = NULL,
2215 .name = "rva22u64",
2216 .misa_ext = RVI | RVM | RVA | RVF | RVD | RVC | RVU,
2217 .priv_spec = RISCV_PROFILE_ATTR_UNUSED,
2218 .satp_mode = RISCV_PROFILE_ATTR_UNUSED,
2219 .ext_offsets = {
2220 CPU_CFG_OFFSET(ext_zicsr), CPU_CFG_OFFSET(ext_zihintpause),
2221 CPU_CFG_OFFSET(ext_zba), CPU_CFG_OFFSET(ext_zbb),
2222 CPU_CFG_OFFSET(ext_zbs), CPU_CFG_OFFSET(ext_zfhmin),
2223 CPU_CFG_OFFSET(ext_zkt), CPU_CFG_OFFSET(ext_zicntr),
2224 CPU_CFG_OFFSET(ext_zihpm), CPU_CFG_OFFSET(ext_zicbom),
2225 CPU_CFG_OFFSET(ext_zicbop), CPU_CFG_OFFSET(ext_zicboz),
2226
2227 /* mandatory named features for this profile */
2228 CPU_CFG_OFFSET(ext_zic64b),
2229
2230 RISCV_PROFILE_EXT_LIST_END
2231 }
2232 };
2233
2234 /*
2235 * As with RVA22U64, RVA22S64 also defines 'named features'.
2236 *
2237 * Cache related features that we consider enabled since we don't
2238 * implement cache: Ssccptr
2239 *
2240 * Other named features that we already implement: Sstvecd, Sstvala,
2241 * Sscounterenw
2242 *
2243 * The remaining features/extensions comes from RVA22U64.
2244 */
2245 static RISCVCPUProfile RVA22S64 = {
2246 .parent = &RVA22U64,
2247 .name = "rva22s64",
2248 .misa_ext = RVS,
2249 .priv_spec = PRIV_VERSION_1_12_0,
2250 .satp_mode = VM_1_10_SV39,
2251 .ext_offsets = {
2252 /* rva22s64 exts */
2253 CPU_CFG_OFFSET(ext_zifencei), CPU_CFG_OFFSET(ext_svpbmt),
2254 CPU_CFG_OFFSET(ext_svinval), CPU_CFG_OFFSET(ext_svade),
2255
2256 RISCV_PROFILE_EXT_LIST_END
2257 }
2258 };
2259
2260 RISCVCPUProfile *riscv_profiles[] = {
2261 &RVA22U64,
2262 &RVA22S64,
2263 NULL,
2264 };
2265
2266 static RISCVCPUImpliedExtsRule RVA_IMPLIED = {
2267 .is_misa = true,
2268 .ext = RVA,
2269 .implied_multi_exts = {
2270 CPU_CFG_OFFSET(ext_zalrsc), CPU_CFG_OFFSET(ext_zaamo),
2271
2272 RISCV_IMPLIED_EXTS_RULE_END
2273 },
2274 };
2275
2276 static RISCVCPUImpliedExtsRule RVD_IMPLIED = {
2277 .is_misa = true,
2278 .ext = RVD,
2279 .implied_misa_exts = RVF,
2280 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END },
2281 };
2282
2283 static RISCVCPUImpliedExtsRule RVF_IMPLIED = {
2284 .is_misa = true,
2285 .ext = RVF,
2286 .implied_multi_exts = {
2287 CPU_CFG_OFFSET(ext_zicsr),
2288
2289 RISCV_IMPLIED_EXTS_RULE_END
2290 },
2291 };
2292
2293 static RISCVCPUImpliedExtsRule RVM_IMPLIED = {
2294 .is_misa = true,
2295 .ext = RVM,
2296 .implied_multi_exts = {
2297 CPU_CFG_OFFSET(ext_zmmul),
2298
2299 RISCV_IMPLIED_EXTS_RULE_END
2300 },
2301 };
2302
2303 static RISCVCPUImpliedExtsRule RVV_IMPLIED = {
2304 .is_misa = true,
2305 .ext = RVV,
2306 .implied_multi_exts = {
2307 CPU_CFG_OFFSET(ext_zve64d),
2308
2309 RISCV_IMPLIED_EXTS_RULE_END
2310 },
2311 };
2312
2313 static RISCVCPUImpliedExtsRule ZCB_IMPLIED = {
2314 .ext = CPU_CFG_OFFSET(ext_zcb),
2315 .implied_multi_exts = {
2316 CPU_CFG_OFFSET(ext_zca),
2317
2318 RISCV_IMPLIED_EXTS_RULE_END
2319 },
2320 };
2321
2322 static RISCVCPUImpliedExtsRule ZCD_IMPLIED = {
2323 .ext = CPU_CFG_OFFSET(ext_zcd),
2324 .implied_misa_exts = RVD,
2325 .implied_multi_exts = {
2326 CPU_CFG_OFFSET(ext_zca),
2327
2328 RISCV_IMPLIED_EXTS_RULE_END
2329 },
2330 };
2331
2332 static RISCVCPUImpliedExtsRule ZCE_IMPLIED = {
2333 .ext = CPU_CFG_OFFSET(ext_zce),
2334 .implied_multi_exts = {
2335 CPU_CFG_OFFSET(ext_zcb), CPU_CFG_OFFSET(ext_zcmp),
2336 CPU_CFG_OFFSET(ext_zcmt),
2337
2338 RISCV_IMPLIED_EXTS_RULE_END
2339 },
2340 };
2341
2342 static RISCVCPUImpliedExtsRule ZCF_IMPLIED = {
2343 .ext = CPU_CFG_OFFSET(ext_zcf),
2344 .implied_misa_exts = RVF,
2345 .implied_multi_exts = {
2346 CPU_CFG_OFFSET(ext_zca),
2347
2348 RISCV_IMPLIED_EXTS_RULE_END
2349 },
2350 };
2351
2352 static RISCVCPUImpliedExtsRule ZCMP_IMPLIED = {
2353 .ext = CPU_CFG_OFFSET(ext_zcmp),
2354 .implied_multi_exts = {
2355 CPU_CFG_OFFSET(ext_zca),
2356
2357 RISCV_IMPLIED_EXTS_RULE_END
2358 },
2359 };
2360
2361 static RISCVCPUImpliedExtsRule ZCMT_IMPLIED = {
2362 .ext = CPU_CFG_OFFSET(ext_zcmt),
2363 .implied_multi_exts = {
2364 CPU_CFG_OFFSET(ext_zca), CPU_CFG_OFFSET(ext_zicsr),
2365
2366 RISCV_IMPLIED_EXTS_RULE_END
2367 },
2368 };
2369
2370 static RISCVCPUImpliedExtsRule ZDINX_IMPLIED = {
2371 .ext = CPU_CFG_OFFSET(ext_zdinx),
2372 .implied_multi_exts = {
2373 CPU_CFG_OFFSET(ext_zfinx),
2374
2375 RISCV_IMPLIED_EXTS_RULE_END
2376 },
2377 };
2378
2379 static RISCVCPUImpliedExtsRule ZFA_IMPLIED = {
2380 .ext = CPU_CFG_OFFSET(ext_zfa),
2381 .implied_misa_exts = RVF,
2382 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END },
2383 };
2384
2385 static RISCVCPUImpliedExtsRule ZFBFMIN_IMPLIED = {
2386 .ext = CPU_CFG_OFFSET(ext_zfbfmin),
2387 .implied_misa_exts = RVF,
2388 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END },
2389 };
2390
2391 static RISCVCPUImpliedExtsRule ZFH_IMPLIED = {
2392 .ext = CPU_CFG_OFFSET(ext_zfh),
2393 .implied_multi_exts = {
2394 CPU_CFG_OFFSET(ext_zfhmin),
2395
2396 RISCV_IMPLIED_EXTS_RULE_END
2397 },
2398 };
2399
2400 static RISCVCPUImpliedExtsRule ZFHMIN_IMPLIED = {
2401 .ext = CPU_CFG_OFFSET(ext_zfhmin),
2402 .implied_misa_exts = RVF,
2403 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END },
2404 };
2405
2406 static RISCVCPUImpliedExtsRule ZFINX_IMPLIED = {
2407 .ext = CPU_CFG_OFFSET(ext_zfinx),
2408 .implied_multi_exts = {
2409 CPU_CFG_OFFSET(ext_zicsr),
2410
2411 RISCV_IMPLIED_EXTS_RULE_END
2412 },
2413 };
2414
2415 static RISCVCPUImpliedExtsRule ZHINX_IMPLIED = {
2416 .ext = CPU_CFG_OFFSET(ext_zhinx),
2417 .implied_multi_exts = {
2418 CPU_CFG_OFFSET(ext_zhinxmin),
2419
2420 RISCV_IMPLIED_EXTS_RULE_END
2421 },
2422 };
2423
2424 static RISCVCPUImpliedExtsRule ZHINXMIN_IMPLIED = {
2425 .ext = CPU_CFG_OFFSET(ext_zhinxmin),
2426 .implied_multi_exts = {
2427 CPU_CFG_OFFSET(ext_zfinx),
2428
2429 RISCV_IMPLIED_EXTS_RULE_END
2430 },
2431 };
2432
2433 static RISCVCPUImpliedExtsRule ZICNTR_IMPLIED = {
2434 .ext = CPU_CFG_OFFSET(ext_zicntr),
2435 .implied_multi_exts = {
2436 CPU_CFG_OFFSET(ext_zicsr),
2437
2438 RISCV_IMPLIED_EXTS_RULE_END
2439 },
2440 };
2441
2442 static RISCVCPUImpliedExtsRule ZIHPM_IMPLIED = {
2443 .ext = CPU_CFG_OFFSET(ext_zihpm),
2444 .implied_multi_exts = {
2445 CPU_CFG_OFFSET(ext_zicsr),
2446
2447 RISCV_IMPLIED_EXTS_RULE_END
2448 },
2449 };
2450
2451 static RISCVCPUImpliedExtsRule ZK_IMPLIED = {
2452 .ext = CPU_CFG_OFFSET(ext_zk),
2453 .implied_multi_exts = {
2454 CPU_CFG_OFFSET(ext_zkn), CPU_CFG_OFFSET(ext_zkr),
2455 CPU_CFG_OFFSET(ext_zkt),
2456
2457 RISCV_IMPLIED_EXTS_RULE_END
2458 },
2459 };
2460
2461 static RISCVCPUImpliedExtsRule ZKN_IMPLIED = {
2462 .ext = CPU_CFG_OFFSET(ext_zkn),
2463 .implied_multi_exts = {
2464 CPU_CFG_OFFSET(ext_zbkb), CPU_CFG_OFFSET(ext_zbkc),
2465 CPU_CFG_OFFSET(ext_zbkx), CPU_CFG_OFFSET(ext_zkne),
2466 CPU_CFG_OFFSET(ext_zknd), CPU_CFG_OFFSET(ext_zknh),
2467
2468 RISCV_IMPLIED_EXTS_RULE_END
2469 },
2470 };
2471
2472 static RISCVCPUImpliedExtsRule ZKS_IMPLIED = {
2473 .ext = CPU_CFG_OFFSET(ext_zks),
2474 .implied_multi_exts = {
2475 CPU_CFG_OFFSET(ext_zbkb), CPU_CFG_OFFSET(ext_zbkc),
2476 CPU_CFG_OFFSET(ext_zbkx), CPU_CFG_OFFSET(ext_zksed),
2477 CPU_CFG_OFFSET(ext_zksh),
2478
2479 RISCV_IMPLIED_EXTS_RULE_END
2480 },
2481 };
2482
2483 static RISCVCPUImpliedExtsRule ZVBB_IMPLIED = {
2484 .ext = CPU_CFG_OFFSET(ext_zvbb),
2485 .implied_multi_exts = {
2486 CPU_CFG_OFFSET(ext_zvkb),
2487
2488 RISCV_IMPLIED_EXTS_RULE_END
2489 },
2490 };
2491
2492 static RISCVCPUImpliedExtsRule ZVE32F_IMPLIED = {
2493 .ext = CPU_CFG_OFFSET(ext_zve32f),
2494 .implied_misa_exts = RVF,
2495 .implied_multi_exts = {
2496 CPU_CFG_OFFSET(ext_zve32x),
2497
2498 RISCV_IMPLIED_EXTS_RULE_END
2499 },
2500 };
2501
2502 static RISCVCPUImpliedExtsRule ZVE32X_IMPLIED = {
2503 .ext = CPU_CFG_OFFSET(ext_zve32x),
2504 .implied_multi_exts = {
2505 CPU_CFG_OFFSET(ext_zicsr),
2506
2507 RISCV_IMPLIED_EXTS_RULE_END
2508 },
2509 };
2510
2511 static RISCVCPUImpliedExtsRule ZVE64D_IMPLIED = {
2512 .ext = CPU_CFG_OFFSET(ext_zve64d),
2513 .implied_misa_exts = RVD,
2514 .implied_multi_exts = {
2515 CPU_CFG_OFFSET(ext_zve64f),
2516
2517 RISCV_IMPLIED_EXTS_RULE_END
2518 },
2519 };
2520
2521 static RISCVCPUImpliedExtsRule ZVE64F_IMPLIED = {
2522 .ext = CPU_CFG_OFFSET(ext_zve64f),
2523 .implied_misa_exts = RVF,
2524 .implied_multi_exts = {
2525 CPU_CFG_OFFSET(ext_zve32f), CPU_CFG_OFFSET(ext_zve64x),
2526
2527 RISCV_IMPLIED_EXTS_RULE_END
2528 },
2529 };
2530
2531 static RISCVCPUImpliedExtsRule ZVE64X_IMPLIED = {
2532 .ext = CPU_CFG_OFFSET(ext_zve64x),
2533 .implied_multi_exts = {
2534 CPU_CFG_OFFSET(ext_zve32x),
2535
2536 RISCV_IMPLIED_EXTS_RULE_END
2537 },
2538 };
2539
2540 static RISCVCPUImpliedExtsRule ZVFBFMIN_IMPLIED = {
2541 .ext = CPU_CFG_OFFSET(ext_zvfbfmin),
2542 .implied_multi_exts = {
2543 CPU_CFG_OFFSET(ext_zve32f),
2544
2545 RISCV_IMPLIED_EXTS_RULE_END
2546 },
2547 };
2548
2549 static RISCVCPUImpliedExtsRule ZVFBFWMA_IMPLIED = {
2550 .ext = CPU_CFG_OFFSET(ext_zvfbfwma),
2551 .implied_multi_exts = {
2552 CPU_CFG_OFFSET(ext_zvfbfmin), CPU_CFG_OFFSET(ext_zfbfmin),
2553
2554 RISCV_IMPLIED_EXTS_RULE_END
2555 },
2556 };
2557
2558 static RISCVCPUImpliedExtsRule ZVFH_IMPLIED = {
2559 .ext = CPU_CFG_OFFSET(ext_zvfh),
2560 .implied_multi_exts = {
2561 CPU_CFG_OFFSET(ext_zvfhmin), CPU_CFG_OFFSET(ext_zfhmin),
2562
2563 RISCV_IMPLIED_EXTS_RULE_END
2564 },
2565 };
2566
2567 static RISCVCPUImpliedExtsRule ZVFHMIN_IMPLIED = {
2568 .ext = CPU_CFG_OFFSET(ext_zvfhmin),
2569 .implied_multi_exts = {
2570 CPU_CFG_OFFSET(ext_zve32f),
2571
2572 RISCV_IMPLIED_EXTS_RULE_END
2573 },
2574 };
2575
2576 static RISCVCPUImpliedExtsRule ZVKN_IMPLIED = {
2577 .ext = CPU_CFG_OFFSET(ext_zvkn),
2578 .implied_multi_exts = {
2579 CPU_CFG_OFFSET(ext_zvkned), CPU_CFG_OFFSET(ext_zvknhb),
2580 CPU_CFG_OFFSET(ext_zvkb), CPU_CFG_OFFSET(ext_zvkt),
2581
2582 RISCV_IMPLIED_EXTS_RULE_END
2583 },
2584 };
2585
2586 static RISCVCPUImpliedExtsRule ZVKNC_IMPLIED = {
2587 .ext = CPU_CFG_OFFSET(ext_zvknc),
2588 .implied_multi_exts = {
2589 CPU_CFG_OFFSET(ext_zvkn), CPU_CFG_OFFSET(ext_zvbc),
2590
2591 RISCV_IMPLIED_EXTS_RULE_END
2592 },
2593 };
2594
2595 static RISCVCPUImpliedExtsRule ZVKNG_IMPLIED = {
2596 .ext = CPU_CFG_OFFSET(ext_zvkng),
2597 .implied_multi_exts = {
2598 CPU_CFG_OFFSET(ext_zvkn), CPU_CFG_OFFSET(ext_zvkg),
2599
2600 RISCV_IMPLIED_EXTS_RULE_END
2601 },
2602 };
2603
2604 static RISCVCPUImpliedExtsRule ZVKNHB_IMPLIED = {
2605 .ext = CPU_CFG_OFFSET(ext_zvknhb),
2606 .implied_multi_exts = {
2607 CPU_CFG_OFFSET(ext_zve64x),
2608
2609 RISCV_IMPLIED_EXTS_RULE_END
2610 },
2611 };
2612
2613 static RISCVCPUImpliedExtsRule ZVKS_IMPLIED = {
2614 .ext = CPU_CFG_OFFSET(ext_zvks),
2615 .implied_multi_exts = {
2616 CPU_CFG_OFFSET(ext_zvksed), CPU_CFG_OFFSET(ext_zvksh),
2617 CPU_CFG_OFFSET(ext_zvkb), CPU_CFG_OFFSET(ext_zvkt),
2618
2619 RISCV_IMPLIED_EXTS_RULE_END
2620 },
2621 };
2622
2623 static RISCVCPUImpliedExtsRule ZVKSC_IMPLIED = {
2624 .ext = CPU_CFG_OFFSET(ext_zvksc),
2625 .implied_multi_exts = {
2626 CPU_CFG_OFFSET(ext_zvks), CPU_CFG_OFFSET(ext_zvbc),
2627
2628 RISCV_IMPLIED_EXTS_RULE_END
2629 },
2630 };
2631
2632 static RISCVCPUImpliedExtsRule ZVKSG_IMPLIED = {
2633 .ext = CPU_CFG_OFFSET(ext_zvksg),
2634 .implied_multi_exts = {
2635 CPU_CFG_OFFSET(ext_zvks), CPU_CFG_OFFSET(ext_zvkg),
2636
2637 RISCV_IMPLIED_EXTS_RULE_END
2638 },
2639 };
2640
2641 RISCVCPUImpliedExtsRule *riscv_misa_ext_implied_rules[] = {
2642 &RVA_IMPLIED, &RVD_IMPLIED, &RVF_IMPLIED,
2643 &RVM_IMPLIED, &RVV_IMPLIED, NULL
2644 };
2645
2646 RISCVCPUImpliedExtsRule *riscv_multi_ext_implied_rules[] = {
2647 &ZCB_IMPLIED, &ZCD_IMPLIED, &ZCE_IMPLIED,
2648 &ZCF_IMPLIED, &ZCMP_IMPLIED, &ZCMT_IMPLIED,
2649 &ZDINX_IMPLIED, &ZFA_IMPLIED, &ZFBFMIN_IMPLIED,
2650 &ZFH_IMPLIED, &ZFHMIN_IMPLIED, &ZFINX_IMPLIED,
2651 &ZHINX_IMPLIED, &ZHINXMIN_IMPLIED, &ZICNTR_IMPLIED,
2652 &ZIHPM_IMPLIED, &ZK_IMPLIED, &ZKN_IMPLIED,
2653 &ZKS_IMPLIED, &ZVBB_IMPLIED, &ZVE32F_IMPLIED,
2654 &ZVE32X_IMPLIED, &ZVE64D_IMPLIED, &ZVE64F_IMPLIED,
2655 &ZVE64X_IMPLIED, &ZVFBFMIN_IMPLIED, &ZVFBFWMA_IMPLIED,
2656 &ZVFH_IMPLIED, &ZVFHMIN_IMPLIED, &ZVKN_IMPLIED,
2657 &ZVKNC_IMPLIED, &ZVKNG_IMPLIED, &ZVKNHB_IMPLIED,
2658 &ZVKS_IMPLIED, &ZVKSC_IMPLIED, &ZVKSG_IMPLIED,
2659 NULL
2660 };
2661
2662 static Property riscv_cpu_properties[] = {
2663 DEFINE_PROP_BOOL("debug", RISCVCPU, cfg.debug, true),
2664
2665 {.name = "pmu-mask", .info = &prop_pmu_mask},
2666 {.name = "pmu-num", .info = &prop_pmu_num}, /* Deprecated */
2667
2668 {.name = "mmu", .info = &prop_mmu},
2669 {.name = "pmp", .info = &prop_pmp},
2670
2671 {.name = "priv_spec", .info = &prop_priv_spec},
2672 {.name = "vext_spec", .info = &prop_vext_spec},
2673
2674 {.name = "vlen", .info = &prop_vlen},
2675 {.name = "elen", .info = &prop_elen},
2676
2677 {.name = "cbom_blocksize", .info = &prop_cbom_blksize},
2678 {.name = "cbop_blocksize", .info = &prop_cbop_blksize},
2679 {.name = "cboz_blocksize", .info = &prop_cboz_blksize},
2680
2681 {.name = "mvendorid", .info = &prop_mvendorid},
2682 {.name = "mimpid", .info = &prop_mimpid},
2683 {.name = "marchid", .info = &prop_marchid},
2684
2685 #ifndef CONFIG_USER_ONLY
2686 DEFINE_PROP_UINT64("resetvec", RISCVCPU, env.resetvec, DEFAULT_RSTVEC),
2687 #endif
2688
2689 DEFINE_PROP_BOOL("short-isa-string", RISCVCPU, cfg.short_isa_string, false),
2690
2691 DEFINE_PROP_BOOL("rvv_ta_all_1s", RISCVCPU, cfg.rvv_ta_all_1s, false),
2692 DEFINE_PROP_BOOL("rvv_ma_all_1s", RISCVCPU, cfg.rvv_ma_all_1s, false),
2693 DEFINE_PROP_BOOL("rvv_vl_half_avl", RISCVCPU, cfg.rvv_vl_half_avl, false),
2694
2695 /*
2696 * write_misa() is marked as experimental for now so mark
2697 * it with -x and default to 'false'.
2698 */
2699 DEFINE_PROP_BOOL("x-misa-w", RISCVCPU, cfg.misa_w, false),
2700 DEFINE_PROP_END_OF_LIST(),
2701 };
2702
2703 #if defined(TARGET_RISCV64)
rva22u64_profile_cpu_init(Object * obj)2704 static void rva22u64_profile_cpu_init(Object *obj)
2705 {
2706 rv64i_bare_cpu_init(obj);
2707
2708 RVA22U64.enabled = true;
2709 }
2710
rva22s64_profile_cpu_init(Object * obj)2711 static void rva22s64_profile_cpu_init(Object *obj)
2712 {
2713 rv64i_bare_cpu_init(obj);
2714
2715 RVA22S64.enabled = true;
2716 }
2717 #endif
2718
riscv_gdb_arch_name(CPUState * cs)2719 static const gchar *riscv_gdb_arch_name(CPUState *cs)
2720 {
2721 RISCVCPU *cpu = RISCV_CPU(cs);
2722 CPURISCVState *env = &cpu->env;
2723
2724 switch (riscv_cpu_mxl(env)) {
2725 case MXL_RV32:
2726 return "riscv:rv32";
2727 case MXL_RV64:
2728 case MXL_RV128:
2729 return "riscv:rv64";
2730 default:
2731 g_assert_not_reached();
2732 }
2733 }
2734
2735 #ifndef CONFIG_USER_ONLY
riscv_get_arch_id(CPUState * cs)2736 static int64_t riscv_get_arch_id(CPUState *cs)
2737 {
2738 RISCVCPU *cpu = RISCV_CPU(cs);
2739
2740 return cpu->env.mhartid;
2741 }
2742
2743 #include "hw/core/sysemu-cpu-ops.h"
2744
2745 static const struct SysemuCPUOps riscv_sysemu_ops = {
2746 .get_phys_page_debug = riscv_cpu_get_phys_page_debug,
2747 .write_elf64_note = riscv_cpu_write_elf64_note,
2748 .write_elf32_note = riscv_cpu_write_elf32_note,
2749 .legacy_vmsd = &vmstate_riscv_cpu,
2750 };
2751 #endif
2752
riscv_cpu_common_class_init(ObjectClass * c,void * data)2753 static void riscv_cpu_common_class_init(ObjectClass *c, void *data)
2754 {
2755 RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
2756 CPUClass *cc = CPU_CLASS(c);
2757 DeviceClass *dc = DEVICE_CLASS(c);
2758 ResettableClass *rc = RESETTABLE_CLASS(c);
2759
2760 device_class_set_parent_realize(dc, riscv_cpu_realize,
2761 &mcc->parent_realize);
2762
2763 resettable_class_set_parent_phases(rc, NULL, riscv_cpu_reset_hold, NULL,
2764 &mcc->parent_phases);
2765
2766 cc->class_by_name = riscv_cpu_class_by_name;
2767 cc->has_work = riscv_cpu_has_work;
2768 cc->mmu_index = riscv_cpu_mmu_index;
2769 cc->dump_state = riscv_cpu_dump_state;
2770 cc->set_pc = riscv_cpu_set_pc;
2771 cc->get_pc = riscv_cpu_get_pc;
2772 cc->gdb_read_register = riscv_cpu_gdb_read_register;
2773 cc->gdb_write_register = riscv_cpu_gdb_write_register;
2774 cc->gdb_stop_before_watchpoint = true;
2775 cc->disas_set_info = riscv_cpu_disas_set_info;
2776 #ifndef CONFIG_USER_ONLY
2777 cc->sysemu_ops = &riscv_sysemu_ops;
2778 cc->get_arch_id = riscv_get_arch_id;
2779 #endif
2780 cc->gdb_arch_name = riscv_gdb_arch_name;
2781
2782 device_class_set_props(dc, riscv_cpu_properties);
2783 }
2784
riscv_cpu_class_init(ObjectClass * c,void * data)2785 static void riscv_cpu_class_init(ObjectClass *c, void *data)
2786 {
2787 RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
2788
2789 mcc->misa_mxl_max = (uint32_t)(uintptr_t)data;
2790 riscv_cpu_validate_misa_mxl(mcc);
2791 }
2792
riscv_isa_string_ext(RISCVCPU * cpu,char ** isa_str,int max_str_len)2793 static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str,
2794 int max_str_len)
2795 {
2796 const RISCVIsaExtData *edata;
2797 char *old = *isa_str;
2798 char *new = *isa_str;
2799
2800 for (edata = isa_edata_arr; edata && edata->name; edata++) {
2801 if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) {
2802 new = g_strconcat(old, "_", edata->name, NULL);
2803 g_free(old);
2804 old = new;
2805 }
2806 }
2807
2808 *isa_str = new;
2809 }
2810
riscv_isa_string(RISCVCPU * cpu)2811 char *riscv_isa_string(RISCVCPU *cpu)
2812 {
2813 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu);
2814 int i;
2815 const size_t maxlen = sizeof("rv128") + sizeof(riscv_single_letter_exts);
2816 char *isa_str = g_new(char, maxlen);
2817 int xlen = riscv_cpu_max_xlen(mcc);
2818 char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", xlen);
2819
2820 for (i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) {
2821 if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) {
2822 *p++ = qemu_tolower(riscv_single_letter_exts[i]);
2823 }
2824 }
2825 *p = '\0';
2826 if (!cpu->cfg.short_isa_string) {
2827 riscv_isa_string_ext(cpu, &isa_str, maxlen);
2828 }
2829 return isa_str;
2830 }
2831
2832 #ifndef CONFIG_USER_ONLY
riscv_isa_extensions_list(RISCVCPU * cpu,int * count)2833 static char **riscv_isa_extensions_list(RISCVCPU *cpu, int *count)
2834 {
2835 int maxlen = ARRAY_SIZE(riscv_single_letter_exts) + ARRAY_SIZE(isa_edata_arr);
2836 char **extensions = g_new(char *, maxlen);
2837
2838 for (int i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) {
2839 if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) {
2840 extensions[*count] = g_new(char, 2);
2841 snprintf(extensions[*count], 2, "%c",
2842 qemu_tolower(riscv_single_letter_exts[i]));
2843 (*count)++;
2844 }
2845 }
2846
2847 for (const RISCVIsaExtData *edata = isa_edata_arr; edata->name; edata++) {
2848 if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) {
2849 extensions[*count] = g_strdup(edata->name);
2850 (*count)++;
2851 }
2852 }
2853
2854 return extensions;
2855 }
2856
riscv_isa_write_fdt(RISCVCPU * cpu,void * fdt,char * nodename)2857 void riscv_isa_write_fdt(RISCVCPU *cpu, void *fdt, char *nodename)
2858 {
2859 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu);
2860 const size_t maxlen = sizeof("rv128i");
2861 g_autofree char *isa_base = g_new(char, maxlen);
2862 g_autofree char *riscv_isa;
2863 char **isa_extensions;
2864 int count = 0;
2865 int xlen = riscv_cpu_max_xlen(mcc);
2866
2867 riscv_isa = riscv_isa_string(cpu);
2868 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", riscv_isa);
2869
2870 snprintf(isa_base, maxlen, "rv%di", xlen);
2871 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa-base", isa_base);
2872
2873 isa_extensions = riscv_isa_extensions_list(cpu, &count);
2874 qemu_fdt_setprop_string_array(fdt, nodename, "riscv,isa-extensions",
2875 isa_extensions, count);
2876
2877 for (int i = 0; i < count; i++) {
2878 g_free(isa_extensions[i]);
2879 }
2880
2881 g_free(isa_extensions);
2882 }
2883 #endif
2884
2885 #define DEFINE_CPU(type_name, misa_mxl_max, initfn) \
2886 { \
2887 .name = (type_name), \
2888 .parent = TYPE_RISCV_CPU, \
2889 .instance_init = (initfn), \
2890 .class_init = riscv_cpu_class_init, \
2891 .class_data = (void *)(misa_mxl_max) \
2892 }
2893
2894 #define DEFINE_DYNAMIC_CPU(type_name, misa_mxl_max, initfn) \
2895 { \
2896 .name = (type_name), \
2897 .parent = TYPE_RISCV_DYNAMIC_CPU, \
2898 .instance_init = (initfn), \
2899 .class_init = riscv_cpu_class_init, \
2900 .class_data = (void *)(misa_mxl_max) \
2901 }
2902
2903 #define DEFINE_VENDOR_CPU(type_name, misa_mxl_max, initfn) \
2904 { \
2905 .name = (type_name), \
2906 .parent = TYPE_RISCV_VENDOR_CPU, \
2907 .instance_init = (initfn), \
2908 .class_init = riscv_cpu_class_init, \
2909 .class_data = (void *)(misa_mxl_max) \
2910 }
2911
2912 #define DEFINE_BARE_CPU(type_name, misa_mxl_max, initfn) \
2913 { \
2914 .name = (type_name), \
2915 .parent = TYPE_RISCV_BARE_CPU, \
2916 .instance_init = (initfn), \
2917 .class_init = riscv_cpu_class_init, \
2918 .class_data = (void *)(misa_mxl_max) \
2919 }
2920
2921 #define DEFINE_PROFILE_CPU(type_name, misa_mxl_max, initfn) \
2922 { \
2923 .name = (type_name), \
2924 .parent = TYPE_RISCV_BARE_CPU, \
2925 .instance_init = (initfn), \
2926 .class_init = riscv_cpu_class_init, \
2927 .class_data = (void *)(misa_mxl_max) \
2928 }
2929
2930 static const TypeInfo riscv_cpu_type_infos[] = {
2931 {
2932 .name = TYPE_RISCV_CPU,
2933 .parent = TYPE_CPU,
2934 .instance_size = sizeof(RISCVCPU),
2935 .instance_align = __alignof(RISCVCPU),
2936 .instance_init = riscv_cpu_init,
2937 .instance_post_init = riscv_cpu_post_init,
2938 .abstract = true,
2939 .class_size = sizeof(RISCVCPUClass),
2940 .class_init = riscv_cpu_common_class_init,
2941 },
2942 {
2943 .name = TYPE_RISCV_DYNAMIC_CPU,
2944 .parent = TYPE_RISCV_CPU,
2945 .abstract = true,
2946 },
2947 {
2948 .name = TYPE_RISCV_VENDOR_CPU,
2949 .parent = TYPE_RISCV_CPU,
2950 .abstract = true,
2951 },
2952 {
2953 .name = TYPE_RISCV_BARE_CPU,
2954 .parent = TYPE_RISCV_CPU,
2955 .instance_init = riscv_bare_cpu_init,
2956 .abstract = true,
2957 },
2958 #if defined(TARGET_RISCV32)
2959 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX, MXL_RV32, riscv_max_cpu_init),
2960 #elif defined(TARGET_RISCV64)
2961 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX, MXL_RV64, riscv_max_cpu_init),
2962 #endif
2963
2964 #if defined(TARGET_RISCV32) || \
2965 (defined(TARGET_RISCV64) && !defined(CONFIG_USER_ONLY))
2966 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE32, MXL_RV32, rv32_base_cpu_init),
2967 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_IBEX, MXL_RV32, rv32_ibex_cpu_init),
2968 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E31, MXL_RV32, rv32_sifive_e_cpu_init),
2969 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E34, MXL_RV32, rv32_imafcu_nommu_cpu_init),
2970 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U34, MXL_RV32, rv32_sifive_u_cpu_init),
2971 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV32I, MXL_RV32, rv32i_bare_cpu_init),
2972 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV32E, MXL_RV32, rv32e_bare_cpu_init),
2973 #endif
2974
2975 #if (defined(TARGET_RISCV64) && !defined(CONFIG_USER_ONLY))
2976 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX32, MXL_RV32, riscv_max_cpu_init),
2977 #endif
2978
2979 #if defined(TARGET_RISCV64)
2980 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE64, MXL_RV64, rv64_base_cpu_init),
2981 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E51, MXL_RV64, rv64_sifive_e_cpu_init),
2982 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64, rv64_sifive_u_cpu_init),
2983 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C, MXL_RV64, rv64_sifive_u_cpu_init),
2984 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64, rv64_thead_c906_cpu_init),
2985 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1, MXL_RV64, rv64_veyron_v1_cpu_init),
2986 #ifdef CONFIG_TCG
2987 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128, MXL_RV128, rv128_base_cpu_init),
2988 #endif /* CONFIG_TCG */
2989 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV64I, MXL_RV64, rv64i_bare_cpu_init),
2990 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV64E, MXL_RV64, rv64e_bare_cpu_init),
2991 DEFINE_PROFILE_CPU(TYPE_RISCV_CPU_RVA22U64, MXL_RV64, rva22u64_profile_cpu_init),
2992 DEFINE_PROFILE_CPU(TYPE_RISCV_CPU_RVA22S64, MXL_RV64, rva22s64_profile_cpu_init),
2993 #endif /* TARGET_RISCV64 */
2994 };
2995
2996 DEFINE_TYPES(riscv_cpu_type_infos)
2997