1 /* 2 * QEMU RISC-V CPU 3 * 4 * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu 5 * Copyright (c) 2017-2018 SiFive, Inc. 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms and conditions of the GNU General Public License, 9 * version 2 or later, as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along with 17 * this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include "qemu/osdep.h" 21 #include "qemu/qemu-print.h" 22 #include "qemu/ctype.h" 23 #include "qemu/log.h" 24 #include "cpu.h" 25 #include "cpu_vendorid.h" 26 #include "internals.h" 27 #include "exec/exec-all.h" 28 #include "qapi/error.h" 29 #include "qapi/visitor.h" 30 #include "qemu/error-report.h" 31 #include "hw/qdev-properties.h" 32 #include "hw/core/qdev-prop-internal.h" 33 #include "migration/vmstate.h" 34 #include "fpu/softfloat-helpers.h" 35 #include "sysemu/device_tree.h" 36 #include "sysemu/kvm.h" 37 #include "sysemu/tcg.h" 38 #include "kvm/kvm_riscv.h" 39 #include "tcg/tcg-cpu.h" 40 #include "tcg/tcg.h" 41 42 /* RISC-V CPU definitions */ 43 static const char riscv_single_letter_exts[] = "IEMAFDQCBPVH"; 44 const uint32_t misa_bits[] = {RVI, RVE, RVM, RVA, RVF, RVD, RVV, 45 RVC, RVS, RVU, RVH, RVJ, RVG, RVB, 0}; 46 47 /* 48 * From vector_helper.c 49 * Note that vector data is stored in host-endian 64-bit chunks, 50 * so addressing bytes needs a host-endian fixup. 51 */ 52 #if HOST_BIG_ENDIAN 53 #define BYTE(x) ((x) ^ 7) 54 #else 55 #define BYTE(x) (x) 56 #endif 57 58 bool riscv_cpu_is_32bit(RISCVCPU *cpu) 59 { 60 return riscv_cpu_mxl(&cpu->env) == MXL_RV32; 61 } 62 63 /* Hash that stores general user set numeric options */ 64 static GHashTable *general_user_opts; 65 66 static void cpu_option_add_user_setting(const char *optname, uint32_t value) 67 { 68 g_hash_table_insert(general_user_opts, (gpointer)optname, 69 GUINT_TO_POINTER(value)); 70 } 71 72 bool riscv_cpu_option_set(const char *optname) 73 { 74 return g_hash_table_contains(general_user_opts, optname); 75 } 76 77 #define ISA_EXT_DATA_ENTRY(_name, _min_ver, _prop) \ 78 {#_name, _min_ver, CPU_CFG_OFFSET(_prop)} 79 80 /* 81 * Here are the ordering rules of extension naming defined by RISC-V 82 * specification : 83 * 1. All extensions should be separated from other multi-letter extensions 84 * by an underscore. 85 * 2. The first letter following the 'Z' conventionally indicates the most 86 * closely related alphabetical extension category, IMAFDQLCBKJTPVH. 87 * If multiple 'Z' extensions are named, they should be ordered first 88 * by category, then alphabetically within a category. 89 * 3. Standard supervisor-level extensions (starts with 'S') should be 90 * listed after standard unprivileged extensions. If multiple 91 * supervisor-level extensions are listed, they should be ordered 92 * alphabetically. 93 * 4. Non-standard extensions (starts with 'X') must be listed after all 94 * standard extensions. They must be separated from other multi-letter 95 * extensions by an underscore. 96 * 97 * Single letter extensions are checked in riscv_cpu_validate_misa_priv() 98 * instead. 99 */ 100 const RISCVIsaExtData isa_edata_arr[] = { 101 ISA_EXT_DATA_ENTRY(zic64b, PRIV_VERSION_1_12_0, ext_zic64b), 102 ISA_EXT_DATA_ENTRY(zicbom, PRIV_VERSION_1_12_0, ext_zicbom), 103 ISA_EXT_DATA_ENTRY(zicbop, PRIV_VERSION_1_12_0, ext_zicbop), 104 ISA_EXT_DATA_ENTRY(zicboz, PRIV_VERSION_1_12_0, ext_zicboz), 105 ISA_EXT_DATA_ENTRY(ziccamoa, PRIV_VERSION_1_11_0, has_priv_1_11), 106 ISA_EXT_DATA_ENTRY(ziccif, PRIV_VERSION_1_11_0, has_priv_1_11), 107 ISA_EXT_DATA_ENTRY(zicclsm, PRIV_VERSION_1_11_0, has_priv_1_11), 108 ISA_EXT_DATA_ENTRY(ziccrse, PRIV_VERSION_1_11_0, has_priv_1_11), 109 ISA_EXT_DATA_ENTRY(zicond, PRIV_VERSION_1_12_0, ext_zicond), 110 ISA_EXT_DATA_ENTRY(zicntr, PRIV_VERSION_1_12_0, ext_zicntr), 111 ISA_EXT_DATA_ENTRY(zicsr, PRIV_VERSION_1_10_0, ext_zicsr), 112 ISA_EXT_DATA_ENTRY(zifencei, PRIV_VERSION_1_10_0, ext_zifencei), 113 ISA_EXT_DATA_ENTRY(zihintntl, PRIV_VERSION_1_10_0, ext_zihintntl), 114 ISA_EXT_DATA_ENTRY(zihintpause, PRIV_VERSION_1_10_0, ext_zihintpause), 115 ISA_EXT_DATA_ENTRY(zihpm, PRIV_VERSION_1_12_0, ext_zihpm), 116 ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul), 117 ISA_EXT_DATA_ENTRY(za64rs, PRIV_VERSION_1_12_0, has_priv_1_11), 118 ISA_EXT_DATA_ENTRY(zaamo, PRIV_VERSION_1_12_0, ext_zaamo), 119 ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas), 120 ISA_EXT_DATA_ENTRY(zalrsc, PRIV_VERSION_1_12_0, ext_zalrsc), 121 ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs), 122 ISA_EXT_DATA_ENTRY(zfa, PRIV_VERSION_1_12_0, ext_zfa), 123 ISA_EXT_DATA_ENTRY(zfbfmin, PRIV_VERSION_1_12_0, ext_zfbfmin), 124 ISA_EXT_DATA_ENTRY(zfh, PRIV_VERSION_1_11_0, ext_zfh), 125 ISA_EXT_DATA_ENTRY(zfhmin, PRIV_VERSION_1_11_0, ext_zfhmin), 126 ISA_EXT_DATA_ENTRY(zfinx, PRIV_VERSION_1_12_0, ext_zfinx), 127 ISA_EXT_DATA_ENTRY(zdinx, PRIV_VERSION_1_12_0, ext_zdinx), 128 ISA_EXT_DATA_ENTRY(zca, PRIV_VERSION_1_12_0, ext_zca), 129 ISA_EXT_DATA_ENTRY(zcb, PRIV_VERSION_1_12_0, ext_zcb), 130 ISA_EXT_DATA_ENTRY(zcf, PRIV_VERSION_1_12_0, ext_zcf), 131 ISA_EXT_DATA_ENTRY(zcd, PRIV_VERSION_1_12_0, ext_zcd), 132 ISA_EXT_DATA_ENTRY(zce, PRIV_VERSION_1_12_0, ext_zce), 133 ISA_EXT_DATA_ENTRY(zcmp, PRIV_VERSION_1_12_0, ext_zcmp), 134 ISA_EXT_DATA_ENTRY(zcmt, PRIV_VERSION_1_12_0, ext_zcmt), 135 ISA_EXT_DATA_ENTRY(zba, PRIV_VERSION_1_12_0, ext_zba), 136 ISA_EXT_DATA_ENTRY(zbb, PRIV_VERSION_1_12_0, ext_zbb), 137 ISA_EXT_DATA_ENTRY(zbc, PRIV_VERSION_1_12_0, ext_zbc), 138 ISA_EXT_DATA_ENTRY(zbkb, PRIV_VERSION_1_12_0, ext_zbkb), 139 ISA_EXT_DATA_ENTRY(zbkc, PRIV_VERSION_1_12_0, ext_zbkc), 140 ISA_EXT_DATA_ENTRY(zbkx, PRIV_VERSION_1_12_0, ext_zbkx), 141 ISA_EXT_DATA_ENTRY(zbs, PRIV_VERSION_1_12_0, ext_zbs), 142 ISA_EXT_DATA_ENTRY(zk, PRIV_VERSION_1_12_0, ext_zk), 143 ISA_EXT_DATA_ENTRY(zkn, PRIV_VERSION_1_12_0, ext_zkn), 144 ISA_EXT_DATA_ENTRY(zknd, PRIV_VERSION_1_12_0, ext_zknd), 145 ISA_EXT_DATA_ENTRY(zkne, PRIV_VERSION_1_12_0, ext_zkne), 146 ISA_EXT_DATA_ENTRY(zknh, PRIV_VERSION_1_12_0, ext_zknh), 147 ISA_EXT_DATA_ENTRY(zkr, PRIV_VERSION_1_12_0, ext_zkr), 148 ISA_EXT_DATA_ENTRY(zks, PRIV_VERSION_1_12_0, ext_zks), 149 ISA_EXT_DATA_ENTRY(zksed, PRIV_VERSION_1_12_0, ext_zksed), 150 ISA_EXT_DATA_ENTRY(zksh, PRIV_VERSION_1_12_0, ext_zksh), 151 ISA_EXT_DATA_ENTRY(zkt, PRIV_VERSION_1_12_0, ext_zkt), 152 ISA_EXT_DATA_ENTRY(ztso, PRIV_VERSION_1_12_0, ext_ztso), 153 ISA_EXT_DATA_ENTRY(zvbb, PRIV_VERSION_1_12_0, ext_zvbb), 154 ISA_EXT_DATA_ENTRY(zvbc, PRIV_VERSION_1_12_0, ext_zvbc), 155 ISA_EXT_DATA_ENTRY(zve32f, PRIV_VERSION_1_10_0, ext_zve32f), 156 ISA_EXT_DATA_ENTRY(zve32x, PRIV_VERSION_1_10_0, ext_zve32x), 157 ISA_EXT_DATA_ENTRY(zve64f, PRIV_VERSION_1_10_0, ext_zve64f), 158 ISA_EXT_DATA_ENTRY(zve64d, PRIV_VERSION_1_10_0, ext_zve64d), 159 ISA_EXT_DATA_ENTRY(zve64x, PRIV_VERSION_1_10_0, ext_zve64x), 160 ISA_EXT_DATA_ENTRY(zvfbfmin, PRIV_VERSION_1_12_0, ext_zvfbfmin), 161 ISA_EXT_DATA_ENTRY(zvfbfwma, PRIV_VERSION_1_12_0, ext_zvfbfwma), 162 ISA_EXT_DATA_ENTRY(zvfh, PRIV_VERSION_1_12_0, ext_zvfh), 163 ISA_EXT_DATA_ENTRY(zvfhmin, PRIV_VERSION_1_12_0, ext_zvfhmin), 164 ISA_EXT_DATA_ENTRY(zvkb, PRIV_VERSION_1_12_0, ext_zvkb), 165 ISA_EXT_DATA_ENTRY(zvkg, PRIV_VERSION_1_12_0, ext_zvkg), 166 ISA_EXT_DATA_ENTRY(zvkn, PRIV_VERSION_1_12_0, ext_zvkn), 167 ISA_EXT_DATA_ENTRY(zvknc, PRIV_VERSION_1_12_0, ext_zvknc), 168 ISA_EXT_DATA_ENTRY(zvkned, PRIV_VERSION_1_12_0, ext_zvkned), 169 ISA_EXT_DATA_ENTRY(zvkng, PRIV_VERSION_1_12_0, ext_zvkng), 170 ISA_EXT_DATA_ENTRY(zvknha, PRIV_VERSION_1_12_0, ext_zvknha), 171 ISA_EXT_DATA_ENTRY(zvknhb, PRIV_VERSION_1_12_0, ext_zvknhb), 172 ISA_EXT_DATA_ENTRY(zvks, PRIV_VERSION_1_12_0, ext_zvks), 173 ISA_EXT_DATA_ENTRY(zvksc, PRIV_VERSION_1_12_0, ext_zvksc), 174 ISA_EXT_DATA_ENTRY(zvksed, PRIV_VERSION_1_12_0, ext_zvksed), 175 ISA_EXT_DATA_ENTRY(zvksg, PRIV_VERSION_1_12_0, ext_zvksg), 176 ISA_EXT_DATA_ENTRY(zvksh, PRIV_VERSION_1_12_0, ext_zvksh), 177 ISA_EXT_DATA_ENTRY(zvkt, PRIV_VERSION_1_12_0, ext_zvkt), 178 ISA_EXT_DATA_ENTRY(zhinx, PRIV_VERSION_1_12_0, ext_zhinx), 179 ISA_EXT_DATA_ENTRY(zhinxmin, PRIV_VERSION_1_12_0, ext_zhinxmin), 180 ISA_EXT_DATA_ENTRY(smaia, PRIV_VERSION_1_12_0, ext_smaia), 181 ISA_EXT_DATA_ENTRY(smepmp, PRIV_VERSION_1_12_0, ext_smepmp), 182 ISA_EXT_DATA_ENTRY(smstateen, PRIV_VERSION_1_12_0, ext_smstateen), 183 ISA_EXT_DATA_ENTRY(ssaia, PRIV_VERSION_1_12_0, ext_ssaia), 184 ISA_EXT_DATA_ENTRY(ssccptr, PRIV_VERSION_1_11_0, has_priv_1_11), 185 ISA_EXT_DATA_ENTRY(sscofpmf, PRIV_VERSION_1_12_0, ext_sscofpmf), 186 ISA_EXT_DATA_ENTRY(sscounterenw, PRIV_VERSION_1_12_0, has_priv_1_12), 187 ISA_EXT_DATA_ENTRY(sstc, PRIV_VERSION_1_12_0, ext_sstc), 188 ISA_EXT_DATA_ENTRY(sstvala, PRIV_VERSION_1_12_0, has_priv_1_12), 189 ISA_EXT_DATA_ENTRY(sstvecd, PRIV_VERSION_1_12_0, has_priv_1_12), 190 ISA_EXT_DATA_ENTRY(svade, PRIV_VERSION_1_11_0, ext_svade), 191 ISA_EXT_DATA_ENTRY(svadu, PRIV_VERSION_1_12_0, ext_svadu), 192 ISA_EXT_DATA_ENTRY(svinval, PRIV_VERSION_1_12_0, ext_svinval), 193 ISA_EXT_DATA_ENTRY(svnapot, PRIV_VERSION_1_12_0, ext_svnapot), 194 ISA_EXT_DATA_ENTRY(svpbmt, PRIV_VERSION_1_12_0, ext_svpbmt), 195 ISA_EXT_DATA_ENTRY(xtheadba, PRIV_VERSION_1_11_0, ext_xtheadba), 196 ISA_EXT_DATA_ENTRY(xtheadbb, PRIV_VERSION_1_11_0, ext_xtheadbb), 197 ISA_EXT_DATA_ENTRY(xtheadbs, PRIV_VERSION_1_11_0, ext_xtheadbs), 198 ISA_EXT_DATA_ENTRY(xtheadcmo, PRIV_VERSION_1_11_0, ext_xtheadcmo), 199 ISA_EXT_DATA_ENTRY(xtheadcondmov, PRIV_VERSION_1_11_0, ext_xtheadcondmov), 200 ISA_EXT_DATA_ENTRY(xtheadfmemidx, PRIV_VERSION_1_11_0, ext_xtheadfmemidx), 201 ISA_EXT_DATA_ENTRY(xtheadfmv, PRIV_VERSION_1_11_0, ext_xtheadfmv), 202 ISA_EXT_DATA_ENTRY(xtheadmac, PRIV_VERSION_1_11_0, ext_xtheadmac), 203 ISA_EXT_DATA_ENTRY(xtheadmemidx, PRIV_VERSION_1_11_0, ext_xtheadmemidx), 204 ISA_EXT_DATA_ENTRY(xtheadmempair, PRIV_VERSION_1_11_0, ext_xtheadmempair), 205 ISA_EXT_DATA_ENTRY(xtheadsync, PRIV_VERSION_1_11_0, ext_xtheadsync), 206 ISA_EXT_DATA_ENTRY(xventanacondops, PRIV_VERSION_1_12_0, ext_XVentanaCondOps), 207 208 DEFINE_PROP_END_OF_LIST(), 209 }; 210 211 bool isa_ext_is_enabled(RISCVCPU *cpu, uint32_t ext_offset) 212 { 213 bool *ext_enabled = (void *)&cpu->cfg + ext_offset; 214 215 return *ext_enabled; 216 } 217 218 void isa_ext_update_enabled(RISCVCPU *cpu, uint32_t ext_offset, bool en) 219 { 220 bool *ext_enabled = (void *)&cpu->cfg + ext_offset; 221 222 *ext_enabled = en; 223 } 224 225 bool riscv_cpu_is_vendor(Object *cpu_obj) 226 { 227 return object_dynamic_cast(cpu_obj, TYPE_RISCV_VENDOR_CPU) != NULL; 228 } 229 230 const char * const riscv_int_regnames[] = { 231 "x0/zero", "x1/ra", "x2/sp", "x3/gp", "x4/tp", "x5/t0", "x6/t1", 232 "x7/t2", "x8/s0", "x9/s1", "x10/a0", "x11/a1", "x12/a2", "x13/a3", 233 "x14/a4", "x15/a5", "x16/a6", "x17/a7", "x18/s2", "x19/s3", "x20/s4", 234 "x21/s5", "x22/s6", "x23/s7", "x24/s8", "x25/s9", "x26/s10", "x27/s11", 235 "x28/t3", "x29/t4", "x30/t5", "x31/t6" 236 }; 237 238 const char * const riscv_int_regnamesh[] = { 239 "x0h/zeroh", "x1h/rah", "x2h/sph", "x3h/gph", "x4h/tph", "x5h/t0h", 240 "x6h/t1h", "x7h/t2h", "x8h/s0h", "x9h/s1h", "x10h/a0h", "x11h/a1h", 241 "x12h/a2h", "x13h/a3h", "x14h/a4h", "x15h/a5h", "x16h/a6h", "x17h/a7h", 242 "x18h/s2h", "x19h/s3h", "x20h/s4h", "x21h/s5h", "x22h/s6h", "x23h/s7h", 243 "x24h/s8h", "x25h/s9h", "x26h/s10h", "x27h/s11h", "x28h/t3h", "x29h/t4h", 244 "x30h/t5h", "x31h/t6h" 245 }; 246 247 const char * const riscv_fpr_regnames[] = { 248 "f0/ft0", "f1/ft1", "f2/ft2", "f3/ft3", "f4/ft4", "f5/ft5", 249 "f6/ft6", "f7/ft7", "f8/fs0", "f9/fs1", "f10/fa0", "f11/fa1", 250 "f12/fa2", "f13/fa3", "f14/fa4", "f15/fa5", "f16/fa6", "f17/fa7", 251 "f18/fs2", "f19/fs3", "f20/fs4", "f21/fs5", "f22/fs6", "f23/fs7", 252 "f24/fs8", "f25/fs9", "f26/fs10", "f27/fs11", "f28/ft8", "f29/ft9", 253 "f30/ft10", "f31/ft11" 254 }; 255 256 const char * const riscv_rvv_regnames[] = { 257 "v0", "v1", "v2", "v3", "v4", "v5", "v6", 258 "v7", "v8", "v9", "v10", "v11", "v12", "v13", 259 "v14", "v15", "v16", "v17", "v18", "v19", "v20", 260 "v21", "v22", "v23", "v24", "v25", "v26", "v27", 261 "v28", "v29", "v30", "v31" 262 }; 263 264 static const char * const riscv_excp_names[] = { 265 "misaligned_fetch", 266 "fault_fetch", 267 "illegal_instruction", 268 "breakpoint", 269 "misaligned_load", 270 "fault_load", 271 "misaligned_store", 272 "fault_store", 273 "user_ecall", 274 "supervisor_ecall", 275 "hypervisor_ecall", 276 "machine_ecall", 277 "exec_page_fault", 278 "load_page_fault", 279 "reserved", 280 "store_page_fault", 281 "reserved", 282 "reserved", 283 "reserved", 284 "reserved", 285 "guest_exec_page_fault", 286 "guest_load_page_fault", 287 "reserved", 288 "guest_store_page_fault", 289 }; 290 291 static const char * const riscv_intr_names[] = { 292 "u_software", 293 "s_software", 294 "vs_software", 295 "m_software", 296 "u_timer", 297 "s_timer", 298 "vs_timer", 299 "m_timer", 300 "u_external", 301 "s_external", 302 "vs_external", 303 "m_external", 304 "reserved", 305 "reserved", 306 "reserved", 307 "reserved" 308 }; 309 310 const char *riscv_cpu_get_trap_name(target_ulong cause, bool async) 311 { 312 if (async) { 313 return (cause < ARRAY_SIZE(riscv_intr_names)) ? 314 riscv_intr_names[cause] : "(unknown)"; 315 } else { 316 return (cause < ARRAY_SIZE(riscv_excp_names)) ? 317 riscv_excp_names[cause] : "(unknown)"; 318 } 319 } 320 321 void riscv_cpu_set_misa_ext(CPURISCVState *env, uint32_t ext) 322 { 323 env->misa_ext_mask = env->misa_ext = ext; 324 } 325 326 int riscv_cpu_max_xlen(RISCVCPUClass *mcc) 327 { 328 return 16 << mcc->misa_mxl_max; 329 } 330 331 #ifndef CONFIG_USER_ONLY 332 static uint8_t satp_mode_from_str(const char *satp_mode_str) 333 { 334 if (!strncmp(satp_mode_str, "mbare", 5)) { 335 return VM_1_10_MBARE; 336 } 337 338 if (!strncmp(satp_mode_str, "sv32", 4)) { 339 return VM_1_10_SV32; 340 } 341 342 if (!strncmp(satp_mode_str, "sv39", 4)) { 343 return VM_1_10_SV39; 344 } 345 346 if (!strncmp(satp_mode_str, "sv48", 4)) { 347 return VM_1_10_SV48; 348 } 349 350 if (!strncmp(satp_mode_str, "sv57", 4)) { 351 return VM_1_10_SV57; 352 } 353 354 if (!strncmp(satp_mode_str, "sv64", 4)) { 355 return VM_1_10_SV64; 356 } 357 358 g_assert_not_reached(); 359 } 360 361 uint8_t satp_mode_max_from_map(uint32_t map) 362 { 363 /* 364 * 'map = 0' will make us return (31 - 32), which C will 365 * happily overflow to UINT_MAX. There's no good result to 366 * return if 'map = 0' (e.g. returning 0 will be ambiguous 367 * with the result for 'map = 1'). 368 * 369 * Assert out if map = 0. Callers will have to deal with 370 * it outside of this function. 371 */ 372 g_assert(map > 0); 373 374 /* map here has at least one bit set, so no problem with clz */ 375 return 31 - __builtin_clz(map); 376 } 377 378 const char *satp_mode_str(uint8_t satp_mode, bool is_32_bit) 379 { 380 if (is_32_bit) { 381 switch (satp_mode) { 382 case VM_1_10_SV32: 383 return "sv32"; 384 case VM_1_10_MBARE: 385 return "none"; 386 } 387 } else { 388 switch (satp_mode) { 389 case VM_1_10_SV64: 390 return "sv64"; 391 case VM_1_10_SV57: 392 return "sv57"; 393 case VM_1_10_SV48: 394 return "sv48"; 395 case VM_1_10_SV39: 396 return "sv39"; 397 case VM_1_10_MBARE: 398 return "none"; 399 } 400 } 401 402 g_assert_not_reached(); 403 } 404 405 static void set_satp_mode_max_supported(RISCVCPU *cpu, 406 uint8_t satp_mode) 407 { 408 bool rv32 = riscv_cpu_mxl(&cpu->env) == MXL_RV32; 409 const bool *valid_vm = rv32 ? valid_vm_1_10_32 : valid_vm_1_10_64; 410 411 for (int i = 0; i <= satp_mode; ++i) { 412 if (valid_vm[i]) { 413 cpu->cfg.satp_mode.supported |= (1 << i); 414 } 415 } 416 } 417 418 /* Set the satp mode to the max supported */ 419 static void set_satp_mode_default_map(RISCVCPU *cpu) 420 { 421 /* 422 * Bare CPUs do not default to the max available. 423 * Users must set a valid satp_mode in the command 424 * line. 425 */ 426 if (object_dynamic_cast(OBJECT(cpu), TYPE_RISCV_BARE_CPU) != NULL) { 427 warn_report("No satp mode set. Defaulting to 'bare'"); 428 cpu->cfg.satp_mode.map = (1 << VM_1_10_MBARE); 429 return; 430 } 431 432 cpu->cfg.satp_mode.map = cpu->cfg.satp_mode.supported; 433 } 434 #endif 435 436 static void riscv_any_cpu_init(Object *obj) 437 { 438 RISCVCPU *cpu = RISCV_CPU(obj); 439 CPURISCVState *env = &cpu->env; 440 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVU); 441 442 #ifndef CONFIG_USER_ONLY 443 set_satp_mode_max_supported(RISCV_CPU(obj), 444 riscv_cpu_mxl(&RISCV_CPU(obj)->env) == MXL_RV32 ? 445 VM_1_10_SV32 : VM_1_10_SV57); 446 #endif 447 448 env->priv_ver = PRIV_VERSION_LATEST; 449 450 /* inherited from parent obj via riscv_cpu_init() */ 451 cpu->cfg.ext_zifencei = true; 452 cpu->cfg.ext_zicsr = true; 453 cpu->cfg.mmu = true; 454 cpu->cfg.pmp = true; 455 } 456 457 static void riscv_max_cpu_init(Object *obj) 458 { 459 RISCVCPU *cpu = RISCV_CPU(obj); 460 CPURISCVState *env = &cpu->env; 461 462 cpu->cfg.mmu = true; 463 cpu->cfg.pmp = true; 464 465 env->priv_ver = PRIV_VERSION_LATEST; 466 #ifndef CONFIG_USER_ONLY 467 #ifdef TARGET_RISCV32 468 set_satp_mode_max_supported(cpu, VM_1_10_SV32); 469 #else 470 set_satp_mode_max_supported(cpu, VM_1_10_SV57); 471 #endif 472 #endif 473 } 474 475 #if defined(TARGET_RISCV64) 476 static void rv64_base_cpu_init(Object *obj) 477 { 478 RISCVCPU *cpu = RISCV_CPU(obj); 479 CPURISCVState *env = &cpu->env; 480 481 cpu->cfg.mmu = true; 482 cpu->cfg.pmp = true; 483 484 /* Set latest version of privileged specification */ 485 env->priv_ver = PRIV_VERSION_LATEST; 486 #ifndef CONFIG_USER_ONLY 487 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57); 488 #endif 489 } 490 491 static void rv64_sifive_u_cpu_init(Object *obj) 492 { 493 RISCVCPU *cpu = RISCV_CPU(obj); 494 CPURISCVState *env = &cpu->env; 495 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); 496 env->priv_ver = PRIV_VERSION_1_10_0; 497 #ifndef CONFIG_USER_ONLY 498 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV39); 499 #endif 500 501 /* inherited from parent obj via riscv_cpu_init() */ 502 cpu->cfg.ext_zifencei = true; 503 cpu->cfg.ext_zicsr = true; 504 cpu->cfg.mmu = true; 505 cpu->cfg.pmp = true; 506 } 507 508 static void rv64_sifive_e_cpu_init(Object *obj) 509 { 510 CPURISCVState *env = &RISCV_CPU(obj)->env; 511 RISCVCPU *cpu = RISCV_CPU(obj); 512 513 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVC | RVU); 514 env->priv_ver = PRIV_VERSION_1_10_0; 515 #ifndef CONFIG_USER_ONLY 516 set_satp_mode_max_supported(cpu, VM_1_10_MBARE); 517 #endif 518 519 /* inherited from parent obj via riscv_cpu_init() */ 520 cpu->cfg.ext_zifencei = true; 521 cpu->cfg.ext_zicsr = true; 522 cpu->cfg.pmp = true; 523 } 524 525 static void rv64_thead_c906_cpu_init(Object *obj) 526 { 527 CPURISCVState *env = &RISCV_CPU(obj)->env; 528 RISCVCPU *cpu = RISCV_CPU(obj); 529 530 riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU); 531 env->priv_ver = PRIV_VERSION_1_11_0; 532 533 cpu->cfg.ext_zfa = true; 534 cpu->cfg.ext_zfh = true; 535 cpu->cfg.mmu = true; 536 cpu->cfg.ext_xtheadba = true; 537 cpu->cfg.ext_xtheadbb = true; 538 cpu->cfg.ext_xtheadbs = true; 539 cpu->cfg.ext_xtheadcmo = true; 540 cpu->cfg.ext_xtheadcondmov = true; 541 cpu->cfg.ext_xtheadfmemidx = true; 542 cpu->cfg.ext_xtheadmac = true; 543 cpu->cfg.ext_xtheadmemidx = true; 544 cpu->cfg.ext_xtheadmempair = true; 545 cpu->cfg.ext_xtheadsync = true; 546 547 cpu->cfg.mvendorid = THEAD_VENDOR_ID; 548 #ifndef CONFIG_USER_ONLY 549 set_satp_mode_max_supported(cpu, VM_1_10_SV39); 550 th_register_custom_csrs(cpu); 551 #endif 552 553 /* inherited from parent obj via riscv_cpu_init() */ 554 cpu->cfg.pmp = true; 555 } 556 557 static void rv64_veyron_v1_cpu_init(Object *obj) 558 { 559 CPURISCVState *env = &RISCV_CPU(obj)->env; 560 RISCVCPU *cpu = RISCV_CPU(obj); 561 562 riscv_cpu_set_misa_ext(env, RVG | RVC | RVS | RVU | RVH); 563 env->priv_ver = PRIV_VERSION_1_12_0; 564 565 /* Enable ISA extensions */ 566 cpu->cfg.mmu = true; 567 cpu->cfg.ext_zifencei = true; 568 cpu->cfg.ext_zicsr = true; 569 cpu->cfg.pmp = true; 570 cpu->cfg.ext_zicbom = true; 571 cpu->cfg.cbom_blocksize = 64; 572 cpu->cfg.cboz_blocksize = 64; 573 cpu->cfg.ext_zicboz = true; 574 cpu->cfg.ext_smaia = true; 575 cpu->cfg.ext_ssaia = true; 576 cpu->cfg.ext_sscofpmf = true; 577 cpu->cfg.ext_sstc = true; 578 cpu->cfg.ext_svinval = true; 579 cpu->cfg.ext_svnapot = true; 580 cpu->cfg.ext_svpbmt = true; 581 cpu->cfg.ext_smstateen = true; 582 cpu->cfg.ext_zba = true; 583 cpu->cfg.ext_zbb = true; 584 cpu->cfg.ext_zbc = true; 585 cpu->cfg.ext_zbs = true; 586 cpu->cfg.ext_XVentanaCondOps = true; 587 588 cpu->cfg.mvendorid = VEYRON_V1_MVENDORID; 589 cpu->cfg.marchid = VEYRON_V1_MARCHID; 590 cpu->cfg.mimpid = VEYRON_V1_MIMPID; 591 592 #ifndef CONFIG_USER_ONLY 593 set_satp_mode_max_supported(cpu, VM_1_10_SV48); 594 #endif 595 } 596 597 #ifdef CONFIG_TCG 598 static void rv128_base_cpu_init(Object *obj) 599 { 600 RISCVCPU *cpu = RISCV_CPU(obj); 601 CPURISCVState *env = &cpu->env; 602 603 if (qemu_tcg_mttcg_enabled()) { 604 /* Missing 128-bit aligned atomics */ 605 error_report("128-bit RISC-V currently does not work with Multi " 606 "Threaded TCG. Please use: -accel tcg,thread=single"); 607 exit(EXIT_FAILURE); 608 } 609 610 cpu->cfg.mmu = true; 611 cpu->cfg.pmp = true; 612 613 /* Set latest version of privileged specification */ 614 env->priv_ver = PRIV_VERSION_LATEST; 615 #ifndef CONFIG_USER_ONLY 616 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV57); 617 #endif 618 } 619 #endif /* CONFIG_TCG */ 620 621 static void rv64i_bare_cpu_init(Object *obj) 622 { 623 CPURISCVState *env = &RISCV_CPU(obj)->env; 624 riscv_cpu_set_misa_ext(env, RVI); 625 } 626 627 static void rv64e_bare_cpu_init(Object *obj) 628 { 629 CPURISCVState *env = &RISCV_CPU(obj)->env; 630 riscv_cpu_set_misa_ext(env, RVE); 631 } 632 633 #else /* !TARGET_RISCV64 */ 634 635 static void rv32_base_cpu_init(Object *obj) 636 { 637 RISCVCPU *cpu = RISCV_CPU(obj); 638 CPURISCVState *env = &cpu->env; 639 640 cpu->cfg.mmu = true; 641 cpu->cfg.pmp = true; 642 643 /* Set latest version of privileged specification */ 644 env->priv_ver = PRIV_VERSION_LATEST; 645 #ifndef CONFIG_USER_ONLY 646 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32); 647 #endif 648 } 649 650 static void rv32_sifive_u_cpu_init(Object *obj) 651 { 652 RISCVCPU *cpu = RISCV_CPU(obj); 653 CPURISCVState *env = &cpu->env; 654 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVD | RVC | RVS | RVU); 655 env->priv_ver = PRIV_VERSION_1_10_0; 656 #ifndef CONFIG_USER_ONLY 657 set_satp_mode_max_supported(RISCV_CPU(obj), VM_1_10_SV32); 658 #endif 659 660 /* inherited from parent obj via riscv_cpu_init() */ 661 cpu->cfg.ext_zifencei = true; 662 cpu->cfg.ext_zicsr = true; 663 cpu->cfg.mmu = true; 664 cpu->cfg.pmp = true; 665 } 666 667 static void rv32_sifive_e_cpu_init(Object *obj) 668 { 669 CPURISCVState *env = &RISCV_CPU(obj)->env; 670 RISCVCPU *cpu = RISCV_CPU(obj); 671 672 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVC | RVU); 673 env->priv_ver = PRIV_VERSION_1_10_0; 674 #ifndef CONFIG_USER_ONLY 675 set_satp_mode_max_supported(cpu, VM_1_10_MBARE); 676 #endif 677 678 /* inherited from parent obj via riscv_cpu_init() */ 679 cpu->cfg.ext_zifencei = true; 680 cpu->cfg.ext_zicsr = true; 681 cpu->cfg.pmp = true; 682 } 683 684 static void rv32_ibex_cpu_init(Object *obj) 685 { 686 CPURISCVState *env = &RISCV_CPU(obj)->env; 687 RISCVCPU *cpu = RISCV_CPU(obj); 688 689 riscv_cpu_set_misa_ext(env, RVI | RVM | RVC | RVU); 690 env->priv_ver = PRIV_VERSION_1_12_0; 691 #ifndef CONFIG_USER_ONLY 692 set_satp_mode_max_supported(cpu, VM_1_10_MBARE); 693 #endif 694 /* inherited from parent obj via riscv_cpu_init() */ 695 cpu->cfg.ext_zifencei = true; 696 cpu->cfg.ext_zicsr = true; 697 cpu->cfg.pmp = true; 698 cpu->cfg.ext_smepmp = true; 699 } 700 701 static void rv32_imafcu_nommu_cpu_init(Object *obj) 702 { 703 CPURISCVState *env = &RISCV_CPU(obj)->env; 704 RISCVCPU *cpu = RISCV_CPU(obj); 705 706 riscv_cpu_set_misa_ext(env, RVI | RVM | RVA | RVF | RVC | RVU); 707 env->priv_ver = PRIV_VERSION_1_10_0; 708 #ifndef CONFIG_USER_ONLY 709 set_satp_mode_max_supported(cpu, VM_1_10_MBARE); 710 #endif 711 712 /* inherited from parent obj via riscv_cpu_init() */ 713 cpu->cfg.ext_zifencei = true; 714 cpu->cfg.ext_zicsr = true; 715 cpu->cfg.pmp = true; 716 } 717 718 static void rv32i_bare_cpu_init(Object *obj) 719 { 720 CPURISCVState *env = &RISCV_CPU(obj)->env; 721 riscv_cpu_set_misa_ext(env, RVI); 722 } 723 724 static void rv32e_bare_cpu_init(Object *obj) 725 { 726 CPURISCVState *env = &RISCV_CPU(obj)->env; 727 riscv_cpu_set_misa_ext(env, RVE); 728 } 729 #endif 730 731 static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model) 732 { 733 ObjectClass *oc; 734 char *typename; 735 char **cpuname; 736 737 cpuname = g_strsplit(cpu_model, ",", 1); 738 typename = g_strdup_printf(RISCV_CPU_TYPE_NAME("%s"), cpuname[0]); 739 oc = object_class_by_name(typename); 740 g_strfreev(cpuname); 741 g_free(typename); 742 743 return oc; 744 } 745 746 char *riscv_cpu_get_name(RISCVCPU *cpu) 747 { 748 RISCVCPUClass *rcc = RISCV_CPU_GET_CLASS(cpu); 749 const char *typename = object_class_get_name(OBJECT_CLASS(rcc)); 750 751 g_assert(g_str_has_suffix(typename, RISCV_CPU_TYPE_SUFFIX)); 752 753 return cpu_model_from_type(typename); 754 } 755 756 static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags) 757 { 758 RISCVCPU *cpu = RISCV_CPU(cs); 759 CPURISCVState *env = &cpu->env; 760 int i, j; 761 uint8_t *p; 762 763 #if !defined(CONFIG_USER_ONLY) 764 if (riscv_has_ext(env, RVH)) { 765 qemu_fprintf(f, " %s %d\n", "V = ", env->virt_enabled); 766 } 767 #endif 768 qemu_fprintf(f, " %s " TARGET_FMT_lx "\n", "pc ", env->pc); 769 #ifndef CONFIG_USER_ONLY 770 { 771 static const int dump_csrs[] = { 772 CSR_MHARTID, 773 CSR_MSTATUS, 774 CSR_MSTATUSH, 775 /* 776 * CSR_SSTATUS is intentionally omitted here as its value 777 * can be figured out by looking at CSR_MSTATUS 778 */ 779 CSR_HSTATUS, 780 CSR_VSSTATUS, 781 CSR_MIP, 782 CSR_MIE, 783 CSR_MIDELEG, 784 CSR_HIDELEG, 785 CSR_MEDELEG, 786 CSR_HEDELEG, 787 CSR_MTVEC, 788 CSR_STVEC, 789 CSR_VSTVEC, 790 CSR_MEPC, 791 CSR_SEPC, 792 CSR_VSEPC, 793 CSR_MCAUSE, 794 CSR_SCAUSE, 795 CSR_VSCAUSE, 796 CSR_MTVAL, 797 CSR_STVAL, 798 CSR_HTVAL, 799 CSR_MTVAL2, 800 CSR_MSCRATCH, 801 CSR_SSCRATCH, 802 CSR_SATP, 803 CSR_MMTE, 804 CSR_UPMBASE, 805 CSR_UPMMASK, 806 CSR_SPMBASE, 807 CSR_SPMMASK, 808 CSR_MPMBASE, 809 CSR_MPMMASK, 810 }; 811 812 for (i = 0; i < ARRAY_SIZE(dump_csrs); ++i) { 813 int csrno = dump_csrs[i]; 814 target_ulong val = 0; 815 RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0); 816 817 /* 818 * Rely on the smode, hmode, etc, predicates within csr.c 819 * to do the filtering of the registers that are present. 820 */ 821 if (res == RISCV_EXCP_NONE) { 822 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n", 823 csr_ops[csrno].name, val); 824 } 825 } 826 } 827 #endif 828 829 for (i = 0; i < 32; i++) { 830 qemu_fprintf(f, " %-8s " TARGET_FMT_lx, 831 riscv_int_regnames[i], env->gpr[i]); 832 if ((i & 3) == 3) { 833 qemu_fprintf(f, "\n"); 834 } 835 } 836 if (flags & CPU_DUMP_FPU) { 837 for (i = 0; i < 32; i++) { 838 qemu_fprintf(f, " %-8s %016" PRIx64, 839 riscv_fpr_regnames[i], env->fpr[i]); 840 if ((i & 3) == 3) { 841 qemu_fprintf(f, "\n"); 842 } 843 } 844 } 845 if (riscv_has_ext(env, RVV) && (flags & CPU_DUMP_VPU)) { 846 static const int dump_rvv_csrs[] = { 847 CSR_VSTART, 848 CSR_VXSAT, 849 CSR_VXRM, 850 CSR_VCSR, 851 CSR_VL, 852 CSR_VTYPE, 853 CSR_VLENB, 854 }; 855 for (i = 0; i < ARRAY_SIZE(dump_rvv_csrs); ++i) { 856 int csrno = dump_rvv_csrs[i]; 857 target_ulong val = 0; 858 RISCVException res = riscv_csrrw_debug(env, csrno, &val, 0, 0); 859 860 /* 861 * Rely on the smode, hmode, etc, predicates within csr.c 862 * to do the filtering of the registers that are present. 863 */ 864 if (res == RISCV_EXCP_NONE) { 865 qemu_fprintf(f, " %-8s " TARGET_FMT_lx "\n", 866 csr_ops[csrno].name, val); 867 } 868 } 869 uint16_t vlenb = cpu->cfg.vlenb; 870 871 for (i = 0; i < 32; i++) { 872 qemu_fprintf(f, " %-8s ", riscv_rvv_regnames[i]); 873 p = (uint8_t *)env->vreg; 874 for (j = vlenb - 1 ; j >= 0; j--) { 875 qemu_fprintf(f, "%02x", *(p + i * vlenb + BYTE(j))); 876 } 877 qemu_fprintf(f, "\n"); 878 } 879 } 880 } 881 882 static void riscv_cpu_set_pc(CPUState *cs, vaddr value) 883 { 884 RISCVCPU *cpu = RISCV_CPU(cs); 885 CPURISCVState *env = &cpu->env; 886 887 if (env->xl == MXL_RV32) { 888 env->pc = (int32_t)value; 889 } else { 890 env->pc = value; 891 } 892 } 893 894 static vaddr riscv_cpu_get_pc(CPUState *cs) 895 { 896 RISCVCPU *cpu = RISCV_CPU(cs); 897 CPURISCVState *env = &cpu->env; 898 899 /* Match cpu_get_tb_cpu_state. */ 900 if (env->xl == MXL_RV32) { 901 return env->pc & UINT32_MAX; 902 } 903 return env->pc; 904 } 905 906 bool riscv_cpu_has_work(CPUState *cs) 907 { 908 #ifndef CONFIG_USER_ONLY 909 RISCVCPU *cpu = RISCV_CPU(cs); 910 CPURISCVState *env = &cpu->env; 911 /* 912 * Definition of the WFI instruction requires it to ignore the privilege 913 * mode and delegation registers, but respect individual enables 914 */ 915 return riscv_cpu_all_pending(env) != 0 || 916 riscv_cpu_sirq_pending(env) != RISCV_EXCP_NONE || 917 riscv_cpu_vsirq_pending(env) != RISCV_EXCP_NONE; 918 #else 919 return true; 920 #endif 921 } 922 923 static int riscv_cpu_mmu_index(CPUState *cs, bool ifetch) 924 { 925 return riscv_env_mmu_index(cpu_env(cs), ifetch); 926 } 927 928 static void riscv_cpu_reset_hold(Object *obj, ResetType type) 929 { 930 #ifndef CONFIG_USER_ONLY 931 uint8_t iprio; 932 int i, irq, rdzero; 933 #endif 934 CPUState *cs = CPU(obj); 935 RISCVCPU *cpu = RISCV_CPU(cs); 936 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(obj); 937 CPURISCVState *env = &cpu->env; 938 939 if (mcc->parent_phases.hold) { 940 mcc->parent_phases.hold(obj, type); 941 } 942 #ifndef CONFIG_USER_ONLY 943 env->misa_mxl = mcc->misa_mxl_max; 944 env->priv = PRV_M; 945 env->mstatus &= ~(MSTATUS_MIE | MSTATUS_MPRV); 946 if (env->misa_mxl > MXL_RV32) { 947 /* 948 * The reset status of SXL/UXL is undefined, but mstatus is WARL 949 * and we must ensure that the value after init is valid for read. 950 */ 951 env->mstatus = set_field(env->mstatus, MSTATUS64_SXL, env->misa_mxl); 952 env->mstatus = set_field(env->mstatus, MSTATUS64_UXL, env->misa_mxl); 953 if (riscv_has_ext(env, RVH)) { 954 env->vsstatus = set_field(env->vsstatus, 955 MSTATUS64_SXL, env->misa_mxl); 956 env->vsstatus = set_field(env->vsstatus, 957 MSTATUS64_UXL, env->misa_mxl); 958 env->mstatus_hs = set_field(env->mstatus_hs, 959 MSTATUS64_SXL, env->misa_mxl); 960 env->mstatus_hs = set_field(env->mstatus_hs, 961 MSTATUS64_UXL, env->misa_mxl); 962 } 963 } 964 env->mcause = 0; 965 env->miclaim = MIP_SGEIP; 966 env->pc = env->resetvec; 967 env->bins = 0; 968 env->two_stage_lookup = false; 969 970 env->menvcfg = (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) | 971 (!cpu->cfg.ext_svade && cpu->cfg.ext_svadu ? 972 MENVCFG_ADUE : 0); 973 env->henvcfg = 0; 974 975 /* Initialized default priorities of local interrupts. */ 976 for (i = 0; i < ARRAY_SIZE(env->miprio); i++) { 977 iprio = riscv_cpu_default_priority(i); 978 env->miprio[i] = (i == IRQ_M_EXT) ? 0 : iprio; 979 env->siprio[i] = (i == IRQ_S_EXT) ? 0 : iprio; 980 env->hviprio[i] = 0; 981 } 982 i = 0; 983 while (!riscv_cpu_hviprio_index2irq(i, &irq, &rdzero)) { 984 if (!rdzero) { 985 env->hviprio[irq] = env->miprio[irq]; 986 } 987 i++; 988 } 989 /* mmte is supposed to have pm.current hardwired to 1 */ 990 env->mmte |= (EXT_STATUS_INITIAL | MMTE_M_PM_CURRENT); 991 992 /* 993 * Bits 10, 6, 2 and 12 of mideleg are read only 1 when the Hypervisor 994 * extension is enabled. 995 */ 996 if (riscv_has_ext(env, RVH)) { 997 env->mideleg |= HS_MODE_INTERRUPTS; 998 } 999 1000 /* 1001 * Clear mseccfg and unlock all the PMP entries upon reset. 1002 * This is allowed as per the priv and smepmp specifications 1003 * and is needed to clear stale entries across reboots. 1004 */ 1005 if (riscv_cpu_cfg(env)->ext_smepmp) { 1006 env->mseccfg = 0; 1007 } 1008 1009 pmp_unlock_entries(env); 1010 #endif 1011 env->xl = riscv_cpu_mxl(env); 1012 riscv_cpu_update_mask(env); 1013 cs->exception_index = RISCV_EXCP_NONE; 1014 env->load_res = -1; 1015 set_default_nan_mode(1, &env->fp_status); 1016 1017 #ifndef CONFIG_USER_ONLY 1018 if (cpu->cfg.debug) { 1019 riscv_trigger_reset_hold(env); 1020 } 1021 1022 if (kvm_enabled()) { 1023 kvm_riscv_reset_vcpu(cpu); 1024 } 1025 #endif 1026 } 1027 1028 static void riscv_cpu_disas_set_info(CPUState *s, disassemble_info *info) 1029 { 1030 RISCVCPU *cpu = RISCV_CPU(s); 1031 CPURISCVState *env = &cpu->env; 1032 info->target_info = &cpu->cfg; 1033 1034 switch (env->xl) { 1035 case MXL_RV32: 1036 info->print_insn = print_insn_riscv32; 1037 break; 1038 case MXL_RV64: 1039 info->print_insn = print_insn_riscv64; 1040 break; 1041 case MXL_RV128: 1042 info->print_insn = print_insn_riscv128; 1043 break; 1044 default: 1045 g_assert_not_reached(); 1046 } 1047 } 1048 1049 #ifndef CONFIG_USER_ONLY 1050 static void riscv_cpu_satp_mode_finalize(RISCVCPU *cpu, Error **errp) 1051 { 1052 bool rv32 = riscv_cpu_is_32bit(cpu); 1053 uint8_t satp_mode_map_max, satp_mode_supported_max; 1054 1055 /* The CPU wants the OS to decide which satp mode to use */ 1056 if (cpu->cfg.satp_mode.supported == 0) { 1057 return; 1058 } 1059 1060 satp_mode_supported_max = 1061 satp_mode_max_from_map(cpu->cfg.satp_mode.supported); 1062 1063 if (cpu->cfg.satp_mode.map == 0) { 1064 if (cpu->cfg.satp_mode.init == 0) { 1065 /* If unset by the user, we fallback to the default satp mode. */ 1066 set_satp_mode_default_map(cpu); 1067 } else { 1068 /* 1069 * Find the lowest level that was disabled and then enable the 1070 * first valid level below which can be found in 1071 * valid_vm_1_10_32/64. 1072 */ 1073 for (int i = 1; i < 16; ++i) { 1074 if ((cpu->cfg.satp_mode.init & (1 << i)) && 1075 (cpu->cfg.satp_mode.supported & (1 << i))) { 1076 for (int j = i - 1; j >= 0; --j) { 1077 if (cpu->cfg.satp_mode.supported & (1 << j)) { 1078 cpu->cfg.satp_mode.map |= (1 << j); 1079 break; 1080 } 1081 } 1082 break; 1083 } 1084 } 1085 } 1086 } 1087 1088 satp_mode_map_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map); 1089 1090 /* Make sure the user asked for a supported configuration (HW and qemu) */ 1091 if (satp_mode_map_max > satp_mode_supported_max) { 1092 error_setg(errp, "satp_mode %s is higher than hw max capability %s", 1093 satp_mode_str(satp_mode_map_max, rv32), 1094 satp_mode_str(satp_mode_supported_max, rv32)); 1095 return; 1096 } 1097 1098 /* 1099 * Make sure the user did not ask for an invalid configuration as per 1100 * the specification. 1101 */ 1102 if (!rv32) { 1103 for (int i = satp_mode_map_max - 1; i >= 0; --i) { 1104 if (!(cpu->cfg.satp_mode.map & (1 << i)) && 1105 (cpu->cfg.satp_mode.init & (1 << i)) && 1106 (cpu->cfg.satp_mode.supported & (1 << i))) { 1107 error_setg(errp, "cannot disable %s satp mode if %s " 1108 "is enabled", satp_mode_str(i, false), 1109 satp_mode_str(satp_mode_map_max, false)); 1110 return; 1111 } 1112 } 1113 } 1114 1115 /* Finally expand the map so that all valid modes are set */ 1116 for (int i = satp_mode_map_max - 1; i >= 0; --i) { 1117 if (cpu->cfg.satp_mode.supported & (1 << i)) { 1118 cpu->cfg.satp_mode.map |= (1 << i); 1119 } 1120 } 1121 } 1122 #endif 1123 1124 void riscv_cpu_finalize_features(RISCVCPU *cpu, Error **errp) 1125 { 1126 Error *local_err = NULL; 1127 1128 #ifndef CONFIG_USER_ONLY 1129 riscv_cpu_satp_mode_finalize(cpu, &local_err); 1130 if (local_err != NULL) { 1131 error_propagate(errp, local_err); 1132 return; 1133 } 1134 #endif 1135 1136 if (tcg_enabled()) { 1137 riscv_tcg_cpu_finalize_features(cpu, &local_err); 1138 if (local_err != NULL) { 1139 error_propagate(errp, local_err); 1140 return; 1141 } 1142 riscv_tcg_cpu_finalize_dynamic_decoder(cpu); 1143 } else if (kvm_enabled()) { 1144 riscv_kvm_cpu_finalize_features(cpu, &local_err); 1145 if (local_err != NULL) { 1146 error_propagate(errp, local_err); 1147 return; 1148 } 1149 } 1150 } 1151 1152 static void riscv_cpu_realize(DeviceState *dev, Error **errp) 1153 { 1154 CPUState *cs = CPU(dev); 1155 RISCVCPU *cpu = RISCV_CPU(dev); 1156 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(dev); 1157 Error *local_err = NULL; 1158 1159 if (object_dynamic_cast(OBJECT(dev), TYPE_RISCV_CPU_ANY) != NULL) { 1160 warn_report("The 'any' CPU is deprecated and will be " 1161 "removed in the future."); 1162 } 1163 1164 cpu_exec_realizefn(cs, &local_err); 1165 if (local_err != NULL) { 1166 error_propagate(errp, local_err); 1167 return; 1168 } 1169 1170 riscv_cpu_finalize_features(cpu, &local_err); 1171 if (local_err != NULL) { 1172 error_propagate(errp, local_err); 1173 return; 1174 } 1175 1176 riscv_cpu_register_gdb_regs_for_features(cs); 1177 1178 #ifndef CONFIG_USER_ONLY 1179 if (cpu->cfg.debug) { 1180 riscv_trigger_realize(&cpu->env); 1181 } 1182 #endif 1183 1184 qemu_init_vcpu(cs); 1185 cpu_reset(cs); 1186 1187 mcc->parent_realize(dev, errp); 1188 } 1189 1190 bool riscv_cpu_accelerator_compatible(RISCVCPU *cpu) 1191 { 1192 if (tcg_enabled()) { 1193 return riscv_cpu_tcg_compatible(cpu); 1194 } 1195 1196 return true; 1197 } 1198 1199 #ifndef CONFIG_USER_ONLY 1200 static void cpu_riscv_get_satp(Object *obj, Visitor *v, const char *name, 1201 void *opaque, Error **errp) 1202 { 1203 RISCVSATPMap *satp_map = opaque; 1204 uint8_t satp = satp_mode_from_str(name); 1205 bool value; 1206 1207 value = satp_map->map & (1 << satp); 1208 1209 visit_type_bool(v, name, &value, errp); 1210 } 1211 1212 static void cpu_riscv_set_satp(Object *obj, Visitor *v, const char *name, 1213 void *opaque, Error **errp) 1214 { 1215 RISCVSATPMap *satp_map = opaque; 1216 uint8_t satp = satp_mode_from_str(name); 1217 bool value; 1218 1219 if (!visit_type_bool(v, name, &value, errp)) { 1220 return; 1221 } 1222 1223 satp_map->map = deposit32(satp_map->map, satp, 1, value); 1224 satp_map->init |= 1 << satp; 1225 } 1226 1227 void riscv_add_satp_mode_properties(Object *obj) 1228 { 1229 RISCVCPU *cpu = RISCV_CPU(obj); 1230 1231 if (cpu->env.misa_mxl == MXL_RV32) { 1232 object_property_add(obj, "sv32", "bool", cpu_riscv_get_satp, 1233 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode); 1234 } else { 1235 object_property_add(obj, "sv39", "bool", cpu_riscv_get_satp, 1236 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode); 1237 object_property_add(obj, "sv48", "bool", cpu_riscv_get_satp, 1238 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode); 1239 object_property_add(obj, "sv57", "bool", cpu_riscv_get_satp, 1240 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode); 1241 object_property_add(obj, "sv64", "bool", cpu_riscv_get_satp, 1242 cpu_riscv_set_satp, NULL, &cpu->cfg.satp_mode); 1243 } 1244 } 1245 1246 static void riscv_cpu_set_irq(void *opaque, int irq, int level) 1247 { 1248 RISCVCPU *cpu = RISCV_CPU(opaque); 1249 CPURISCVState *env = &cpu->env; 1250 1251 if (irq < IRQ_LOCAL_MAX) { 1252 switch (irq) { 1253 case IRQ_U_SOFT: 1254 case IRQ_S_SOFT: 1255 case IRQ_VS_SOFT: 1256 case IRQ_M_SOFT: 1257 case IRQ_U_TIMER: 1258 case IRQ_S_TIMER: 1259 case IRQ_VS_TIMER: 1260 case IRQ_M_TIMER: 1261 case IRQ_U_EXT: 1262 case IRQ_VS_EXT: 1263 case IRQ_M_EXT: 1264 if (kvm_enabled()) { 1265 kvm_riscv_set_irq(cpu, irq, level); 1266 } else { 1267 riscv_cpu_update_mip(env, 1 << irq, BOOL_TO_MASK(level)); 1268 } 1269 break; 1270 case IRQ_S_EXT: 1271 if (kvm_enabled()) { 1272 kvm_riscv_set_irq(cpu, irq, level); 1273 } else { 1274 env->external_seip = level; 1275 riscv_cpu_update_mip(env, 1 << irq, 1276 BOOL_TO_MASK(level | env->software_seip)); 1277 } 1278 break; 1279 default: 1280 g_assert_not_reached(); 1281 } 1282 } else if (irq < (IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX)) { 1283 /* Require H-extension for handling guest local interrupts */ 1284 if (!riscv_has_ext(env, RVH)) { 1285 g_assert_not_reached(); 1286 } 1287 1288 /* Compute bit position in HGEIP CSR */ 1289 irq = irq - IRQ_LOCAL_MAX + 1; 1290 if (env->geilen < irq) { 1291 g_assert_not_reached(); 1292 } 1293 1294 /* Update HGEIP CSR */ 1295 env->hgeip &= ~((target_ulong)1 << irq); 1296 if (level) { 1297 env->hgeip |= (target_ulong)1 << irq; 1298 } 1299 1300 /* Update mip.SGEIP bit */ 1301 riscv_cpu_update_mip(env, MIP_SGEIP, 1302 BOOL_TO_MASK(!!(env->hgeie & env->hgeip))); 1303 } else { 1304 g_assert_not_reached(); 1305 } 1306 } 1307 #endif /* CONFIG_USER_ONLY */ 1308 1309 static bool riscv_cpu_is_dynamic(Object *cpu_obj) 1310 { 1311 return object_dynamic_cast(cpu_obj, TYPE_RISCV_DYNAMIC_CPU) != NULL; 1312 } 1313 1314 static void riscv_cpu_post_init(Object *obj) 1315 { 1316 accel_cpu_instance_init(CPU(obj)); 1317 } 1318 1319 static void riscv_cpu_init(Object *obj) 1320 { 1321 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(obj); 1322 RISCVCPU *cpu = RISCV_CPU(obj); 1323 CPURISCVState *env = &cpu->env; 1324 1325 env->misa_mxl = mcc->misa_mxl_max; 1326 1327 #ifndef CONFIG_USER_ONLY 1328 qdev_init_gpio_in(DEVICE(obj), riscv_cpu_set_irq, 1329 IRQ_LOCAL_MAX + IRQ_LOCAL_GUEST_MAX); 1330 #endif /* CONFIG_USER_ONLY */ 1331 1332 general_user_opts = g_hash_table_new(g_str_hash, g_str_equal); 1333 1334 /* 1335 * The timer and performance counters extensions were supported 1336 * in QEMU before they were added as discrete extensions in the 1337 * ISA. To keep compatibility we'll always default them to 'true' 1338 * for all CPUs. Each accelerator will decide what to do when 1339 * users disable them. 1340 */ 1341 RISCV_CPU(obj)->cfg.ext_zicntr = true; 1342 RISCV_CPU(obj)->cfg.ext_zihpm = true; 1343 1344 /* Default values for non-bool cpu properties */ 1345 cpu->cfg.pmu_mask = MAKE_64BIT_MASK(3, 16); 1346 cpu->cfg.vlenb = 128 >> 3; 1347 cpu->cfg.elen = 64; 1348 cpu->cfg.cbom_blocksize = 64; 1349 cpu->cfg.cbop_blocksize = 64; 1350 cpu->cfg.cboz_blocksize = 64; 1351 cpu->env.vext_ver = VEXT_VERSION_1_00_0; 1352 } 1353 1354 static void riscv_bare_cpu_init(Object *obj) 1355 { 1356 RISCVCPU *cpu = RISCV_CPU(obj); 1357 1358 /* 1359 * Bare CPUs do not inherit the timer and performance 1360 * counters from the parent class (see riscv_cpu_init() 1361 * for info on why the parent enables them). 1362 * 1363 * Users have to explicitly enable these counters for 1364 * bare CPUs. 1365 */ 1366 cpu->cfg.ext_zicntr = false; 1367 cpu->cfg.ext_zihpm = false; 1368 1369 /* Set to QEMU's first supported priv version */ 1370 cpu->env.priv_ver = PRIV_VERSION_1_10_0; 1371 1372 /* 1373 * Support all available satp_mode settings. The default 1374 * value will be set to MBARE if the user doesn't set 1375 * satp_mode manually (see set_satp_mode_default()). 1376 */ 1377 #ifndef CONFIG_USER_ONLY 1378 set_satp_mode_max_supported(cpu, VM_1_10_SV64); 1379 #endif 1380 } 1381 1382 typedef struct misa_ext_info { 1383 const char *name; 1384 const char *description; 1385 } MISAExtInfo; 1386 1387 #define MISA_INFO_IDX(_bit) \ 1388 __builtin_ctz(_bit) 1389 1390 #define MISA_EXT_INFO(_bit, _propname, _descr) \ 1391 [MISA_INFO_IDX(_bit)] = {.name = _propname, .description = _descr} 1392 1393 static const MISAExtInfo misa_ext_info_arr[] = { 1394 MISA_EXT_INFO(RVA, "a", "Atomic instructions"), 1395 MISA_EXT_INFO(RVC, "c", "Compressed instructions"), 1396 MISA_EXT_INFO(RVD, "d", "Double-precision float point"), 1397 MISA_EXT_INFO(RVF, "f", "Single-precision float point"), 1398 MISA_EXT_INFO(RVI, "i", "Base integer instruction set"), 1399 MISA_EXT_INFO(RVE, "e", "Base integer instruction set (embedded)"), 1400 MISA_EXT_INFO(RVM, "m", "Integer multiplication and division"), 1401 MISA_EXT_INFO(RVS, "s", "Supervisor-level instructions"), 1402 MISA_EXT_INFO(RVU, "u", "User-level instructions"), 1403 MISA_EXT_INFO(RVH, "h", "Hypervisor"), 1404 MISA_EXT_INFO(RVJ, "x-j", "Dynamic translated languages"), 1405 MISA_EXT_INFO(RVV, "v", "Vector operations"), 1406 MISA_EXT_INFO(RVG, "g", "General purpose (IMAFD_Zicsr_Zifencei)"), 1407 MISA_EXT_INFO(RVB, "b", "Bit manipulation (Zba_Zbb_Zbs)") 1408 }; 1409 1410 static void riscv_cpu_validate_misa_mxl(RISCVCPUClass *mcc) 1411 { 1412 CPUClass *cc = CPU_CLASS(mcc); 1413 1414 /* Validate that MISA_MXL is set properly. */ 1415 switch (mcc->misa_mxl_max) { 1416 #ifdef TARGET_RISCV64 1417 case MXL_RV64: 1418 case MXL_RV128: 1419 cc->gdb_core_xml_file = "riscv-64bit-cpu.xml"; 1420 break; 1421 #endif 1422 case MXL_RV32: 1423 cc->gdb_core_xml_file = "riscv-32bit-cpu.xml"; 1424 break; 1425 default: 1426 g_assert_not_reached(); 1427 } 1428 } 1429 1430 static int riscv_validate_misa_info_idx(uint32_t bit) 1431 { 1432 int idx; 1433 1434 /* 1435 * Our lowest valid input (RVA) is 1 and 1436 * __builtin_ctz() is UB with zero. 1437 */ 1438 g_assert(bit != 0); 1439 idx = MISA_INFO_IDX(bit); 1440 1441 g_assert(idx < ARRAY_SIZE(misa_ext_info_arr)); 1442 return idx; 1443 } 1444 1445 const char *riscv_get_misa_ext_name(uint32_t bit) 1446 { 1447 int idx = riscv_validate_misa_info_idx(bit); 1448 const char *val = misa_ext_info_arr[idx].name; 1449 1450 g_assert(val != NULL); 1451 return val; 1452 } 1453 1454 const char *riscv_get_misa_ext_description(uint32_t bit) 1455 { 1456 int idx = riscv_validate_misa_info_idx(bit); 1457 const char *val = misa_ext_info_arr[idx].description; 1458 1459 g_assert(val != NULL); 1460 return val; 1461 } 1462 1463 #define MULTI_EXT_CFG_BOOL(_name, _prop, _defval) \ 1464 {.name = _name, .offset = CPU_CFG_OFFSET(_prop), \ 1465 .enabled = _defval} 1466 1467 const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = { 1468 /* Defaults for standard extensions */ 1469 MULTI_EXT_CFG_BOOL("sscofpmf", ext_sscofpmf, false), 1470 MULTI_EXT_CFG_BOOL("zifencei", ext_zifencei, true), 1471 MULTI_EXT_CFG_BOOL("zicsr", ext_zicsr, true), 1472 MULTI_EXT_CFG_BOOL("zihintntl", ext_zihintntl, true), 1473 MULTI_EXT_CFG_BOOL("zihintpause", ext_zihintpause, true), 1474 MULTI_EXT_CFG_BOOL("zacas", ext_zacas, false), 1475 MULTI_EXT_CFG_BOOL("zaamo", ext_zaamo, false), 1476 MULTI_EXT_CFG_BOOL("zalrsc", ext_zalrsc, false), 1477 MULTI_EXT_CFG_BOOL("zawrs", ext_zawrs, true), 1478 MULTI_EXT_CFG_BOOL("zfa", ext_zfa, true), 1479 MULTI_EXT_CFG_BOOL("zfbfmin", ext_zfbfmin, false), 1480 MULTI_EXT_CFG_BOOL("zfh", ext_zfh, false), 1481 MULTI_EXT_CFG_BOOL("zfhmin", ext_zfhmin, false), 1482 MULTI_EXT_CFG_BOOL("zve32f", ext_zve32f, false), 1483 MULTI_EXT_CFG_BOOL("zve32x", ext_zve32x, false), 1484 MULTI_EXT_CFG_BOOL("zve64f", ext_zve64f, false), 1485 MULTI_EXT_CFG_BOOL("zve64d", ext_zve64d, false), 1486 MULTI_EXT_CFG_BOOL("zve64x", ext_zve64x, false), 1487 MULTI_EXT_CFG_BOOL("zvfbfmin", ext_zvfbfmin, false), 1488 MULTI_EXT_CFG_BOOL("zvfbfwma", ext_zvfbfwma, false), 1489 MULTI_EXT_CFG_BOOL("zvfh", ext_zvfh, false), 1490 MULTI_EXT_CFG_BOOL("zvfhmin", ext_zvfhmin, false), 1491 MULTI_EXT_CFG_BOOL("sstc", ext_sstc, true), 1492 1493 MULTI_EXT_CFG_BOOL("smaia", ext_smaia, false), 1494 MULTI_EXT_CFG_BOOL("smepmp", ext_smepmp, false), 1495 MULTI_EXT_CFG_BOOL("smstateen", ext_smstateen, false), 1496 MULTI_EXT_CFG_BOOL("ssaia", ext_ssaia, false), 1497 MULTI_EXT_CFG_BOOL("svade", ext_svade, false), 1498 MULTI_EXT_CFG_BOOL("svadu", ext_svadu, true), 1499 MULTI_EXT_CFG_BOOL("svinval", ext_svinval, false), 1500 MULTI_EXT_CFG_BOOL("svnapot", ext_svnapot, false), 1501 MULTI_EXT_CFG_BOOL("svpbmt", ext_svpbmt, false), 1502 1503 MULTI_EXT_CFG_BOOL("zicntr", ext_zicntr, true), 1504 MULTI_EXT_CFG_BOOL("zihpm", ext_zihpm, true), 1505 1506 MULTI_EXT_CFG_BOOL("zba", ext_zba, true), 1507 MULTI_EXT_CFG_BOOL("zbb", ext_zbb, true), 1508 MULTI_EXT_CFG_BOOL("zbc", ext_zbc, true), 1509 MULTI_EXT_CFG_BOOL("zbkb", ext_zbkb, false), 1510 MULTI_EXT_CFG_BOOL("zbkc", ext_zbkc, false), 1511 MULTI_EXT_CFG_BOOL("zbkx", ext_zbkx, false), 1512 MULTI_EXT_CFG_BOOL("zbs", ext_zbs, true), 1513 MULTI_EXT_CFG_BOOL("zk", ext_zk, false), 1514 MULTI_EXT_CFG_BOOL("zkn", ext_zkn, false), 1515 MULTI_EXT_CFG_BOOL("zknd", ext_zknd, false), 1516 MULTI_EXT_CFG_BOOL("zkne", ext_zkne, false), 1517 MULTI_EXT_CFG_BOOL("zknh", ext_zknh, false), 1518 MULTI_EXT_CFG_BOOL("zkr", ext_zkr, false), 1519 MULTI_EXT_CFG_BOOL("zks", ext_zks, false), 1520 MULTI_EXT_CFG_BOOL("zksed", ext_zksed, false), 1521 MULTI_EXT_CFG_BOOL("zksh", ext_zksh, false), 1522 MULTI_EXT_CFG_BOOL("zkt", ext_zkt, false), 1523 MULTI_EXT_CFG_BOOL("ztso", ext_ztso, false), 1524 1525 MULTI_EXT_CFG_BOOL("zdinx", ext_zdinx, false), 1526 MULTI_EXT_CFG_BOOL("zfinx", ext_zfinx, false), 1527 MULTI_EXT_CFG_BOOL("zhinx", ext_zhinx, false), 1528 MULTI_EXT_CFG_BOOL("zhinxmin", ext_zhinxmin, false), 1529 1530 MULTI_EXT_CFG_BOOL("zicbom", ext_zicbom, true), 1531 MULTI_EXT_CFG_BOOL("zicbop", ext_zicbop, true), 1532 MULTI_EXT_CFG_BOOL("zicboz", ext_zicboz, true), 1533 1534 MULTI_EXT_CFG_BOOL("zmmul", ext_zmmul, false), 1535 1536 MULTI_EXT_CFG_BOOL("zca", ext_zca, false), 1537 MULTI_EXT_CFG_BOOL("zcb", ext_zcb, false), 1538 MULTI_EXT_CFG_BOOL("zcd", ext_zcd, false), 1539 MULTI_EXT_CFG_BOOL("zce", ext_zce, false), 1540 MULTI_EXT_CFG_BOOL("zcf", ext_zcf, false), 1541 MULTI_EXT_CFG_BOOL("zcmp", ext_zcmp, false), 1542 MULTI_EXT_CFG_BOOL("zcmt", ext_zcmt, false), 1543 MULTI_EXT_CFG_BOOL("zicond", ext_zicond, false), 1544 1545 /* Vector cryptography extensions */ 1546 MULTI_EXT_CFG_BOOL("zvbb", ext_zvbb, false), 1547 MULTI_EXT_CFG_BOOL("zvbc", ext_zvbc, false), 1548 MULTI_EXT_CFG_BOOL("zvkb", ext_zvkb, false), 1549 MULTI_EXT_CFG_BOOL("zvkg", ext_zvkg, false), 1550 MULTI_EXT_CFG_BOOL("zvkned", ext_zvkned, false), 1551 MULTI_EXT_CFG_BOOL("zvknha", ext_zvknha, false), 1552 MULTI_EXT_CFG_BOOL("zvknhb", ext_zvknhb, false), 1553 MULTI_EXT_CFG_BOOL("zvksed", ext_zvksed, false), 1554 MULTI_EXT_CFG_BOOL("zvksh", ext_zvksh, false), 1555 MULTI_EXT_CFG_BOOL("zvkt", ext_zvkt, false), 1556 MULTI_EXT_CFG_BOOL("zvkn", ext_zvkn, false), 1557 MULTI_EXT_CFG_BOOL("zvknc", ext_zvknc, false), 1558 MULTI_EXT_CFG_BOOL("zvkng", ext_zvkng, false), 1559 MULTI_EXT_CFG_BOOL("zvks", ext_zvks, false), 1560 MULTI_EXT_CFG_BOOL("zvksc", ext_zvksc, false), 1561 MULTI_EXT_CFG_BOOL("zvksg", ext_zvksg, false), 1562 1563 DEFINE_PROP_END_OF_LIST(), 1564 }; 1565 1566 const RISCVCPUMultiExtConfig riscv_cpu_vendor_exts[] = { 1567 MULTI_EXT_CFG_BOOL("xtheadba", ext_xtheadba, false), 1568 MULTI_EXT_CFG_BOOL("xtheadbb", ext_xtheadbb, false), 1569 MULTI_EXT_CFG_BOOL("xtheadbs", ext_xtheadbs, false), 1570 MULTI_EXT_CFG_BOOL("xtheadcmo", ext_xtheadcmo, false), 1571 MULTI_EXT_CFG_BOOL("xtheadcondmov", ext_xtheadcondmov, false), 1572 MULTI_EXT_CFG_BOOL("xtheadfmemidx", ext_xtheadfmemidx, false), 1573 MULTI_EXT_CFG_BOOL("xtheadfmv", ext_xtheadfmv, false), 1574 MULTI_EXT_CFG_BOOL("xtheadmac", ext_xtheadmac, false), 1575 MULTI_EXT_CFG_BOOL("xtheadmemidx", ext_xtheadmemidx, false), 1576 MULTI_EXT_CFG_BOOL("xtheadmempair", ext_xtheadmempair, false), 1577 MULTI_EXT_CFG_BOOL("xtheadsync", ext_xtheadsync, false), 1578 MULTI_EXT_CFG_BOOL("xventanacondops", ext_XVentanaCondOps, false), 1579 1580 DEFINE_PROP_END_OF_LIST(), 1581 }; 1582 1583 /* These are experimental so mark with 'x-' */ 1584 const RISCVCPUMultiExtConfig riscv_cpu_experimental_exts[] = { 1585 DEFINE_PROP_END_OF_LIST(), 1586 }; 1587 1588 /* 1589 * 'Named features' is the name we give to extensions that we 1590 * don't want to expose to users. They are either immutable 1591 * (always enabled/disable) or they'll vary depending on 1592 * the resulting CPU state. They have riscv,isa strings 1593 * and priv_ver like regular extensions. 1594 */ 1595 const RISCVCPUMultiExtConfig riscv_cpu_named_features[] = { 1596 MULTI_EXT_CFG_BOOL("zic64b", ext_zic64b, true), 1597 1598 DEFINE_PROP_END_OF_LIST(), 1599 }; 1600 1601 /* Deprecated entries marked for future removal */ 1602 const RISCVCPUMultiExtConfig riscv_cpu_deprecated_exts[] = { 1603 MULTI_EXT_CFG_BOOL("Zifencei", ext_zifencei, true), 1604 MULTI_EXT_CFG_BOOL("Zicsr", ext_zicsr, true), 1605 MULTI_EXT_CFG_BOOL("Zihintntl", ext_zihintntl, true), 1606 MULTI_EXT_CFG_BOOL("Zihintpause", ext_zihintpause, true), 1607 MULTI_EXT_CFG_BOOL("Zawrs", ext_zawrs, true), 1608 MULTI_EXT_CFG_BOOL("Zfa", ext_zfa, true), 1609 MULTI_EXT_CFG_BOOL("Zfh", ext_zfh, false), 1610 MULTI_EXT_CFG_BOOL("Zfhmin", ext_zfhmin, false), 1611 MULTI_EXT_CFG_BOOL("Zve32f", ext_zve32f, false), 1612 MULTI_EXT_CFG_BOOL("Zve64f", ext_zve64f, false), 1613 MULTI_EXT_CFG_BOOL("Zve64d", ext_zve64d, false), 1614 1615 DEFINE_PROP_END_OF_LIST(), 1616 }; 1617 1618 static void cpu_set_prop_err(RISCVCPU *cpu, const char *propname, 1619 Error **errp) 1620 { 1621 g_autofree char *cpuname = riscv_cpu_get_name(cpu); 1622 error_setg(errp, "CPU '%s' does not allow changing the value of '%s'", 1623 cpuname, propname); 1624 } 1625 1626 static void prop_pmu_num_set(Object *obj, Visitor *v, const char *name, 1627 void *opaque, Error **errp) 1628 { 1629 RISCVCPU *cpu = RISCV_CPU(obj); 1630 uint8_t pmu_num, curr_pmu_num; 1631 uint32_t pmu_mask; 1632 1633 visit_type_uint8(v, name, &pmu_num, errp); 1634 1635 curr_pmu_num = ctpop32(cpu->cfg.pmu_mask); 1636 1637 if (pmu_num != curr_pmu_num && riscv_cpu_is_vendor(obj)) { 1638 cpu_set_prop_err(cpu, name, errp); 1639 error_append_hint(errp, "Current '%s' val: %u\n", 1640 name, curr_pmu_num); 1641 return; 1642 } 1643 1644 if (pmu_num > (RV_MAX_MHPMCOUNTERS - 3)) { 1645 error_setg(errp, "Number of counters exceeds maximum available"); 1646 return; 1647 } 1648 1649 if (pmu_num == 0) { 1650 pmu_mask = 0; 1651 } else { 1652 pmu_mask = MAKE_64BIT_MASK(3, pmu_num); 1653 } 1654 1655 warn_report("\"pmu-num\" property is deprecated; use \"pmu-mask\""); 1656 cpu->cfg.pmu_mask = pmu_mask; 1657 cpu_option_add_user_setting("pmu-mask", pmu_mask); 1658 } 1659 1660 static void prop_pmu_num_get(Object *obj, Visitor *v, const char *name, 1661 void *opaque, Error **errp) 1662 { 1663 RISCVCPU *cpu = RISCV_CPU(obj); 1664 uint8_t pmu_num = ctpop32(cpu->cfg.pmu_mask); 1665 1666 visit_type_uint8(v, name, &pmu_num, errp); 1667 } 1668 1669 static const PropertyInfo prop_pmu_num = { 1670 .name = "pmu-num", 1671 .get = prop_pmu_num_get, 1672 .set = prop_pmu_num_set, 1673 }; 1674 1675 static void prop_pmu_mask_set(Object *obj, Visitor *v, const char *name, 1676 void *opaque, Error **errp) 1677 { 1678 RISCVCPU *cpu = RISCV_CPU(obj); 1679 uint32_t value; 1680 uint8_t pmu_num; 1681 1682 visit_type_uint32(v, name, &value, errp); 1683 1684 if (value != cpu->cfg.pmu_mask && riscv_cpu_is_vendor(obj)) { 1685 cpu_set_prop_err(cpu, name, errp); 1686 error_append_hint(errp, "Current '%s' val: %x\n", 1687 name, cpu->cfg.pmu_mask); 1688 return; 1689 } 1690 1691 pmu_num = ctpop32(value); 1692 1693 if (pmu_num > (RV_MAX_MHPMCOUNTERS - 3)) { 1694 error_setg(errp, "Number of counters exceeds maximum available"); 1695 return; 1696 } 1697 1698 cpu_option_add_user_setting(name, value); 1699 cpu->cfg.pmu_mask = value; 1700 } 1701 1702 static void prop_pmu_mask_get(Object *obj, Visitor *v, const char *name, 1703 void *opaque, Error **errp) 1704 { 1705 uint8_t pmu_mask = RISCV_CPU(obj)->cfg.pmu_mask; 1706 1707 visit_type_uint8(v, name, &pmu_mask, errp); 1708 } 1709 1710 static const PropertyInfo prop_pmu_mask = { 1711 .name = "pmu-mask", 1712 .get = prop_pmu_mask_get, 1713 .set = prop_pmu_mask_set, 1714 }; 1715 1716 static void prop_mmu_set(Object *obj, Visitor *v, const char *name, 1717 void *opaque, Error **errp) 1718 { 1719 RISCVCPU *cpu = RISCV_CPU(obj); 1720 bool value; 1721 1722 visit_type_bool(v, name, &value, errp); 1723 1724 if (cpu->cfg.mmu != value && riscv_cpu_is_vendor(obj)) { 1725 cpu_set_prop_err(cpu, "mmu", errp); 1726 return; 1727 } 1728 1729 cpu_option_add_user_setting(name, value); 1730 cpu->cfg.mmu = value; 1731 } 1732 1733 static void prop_mmu_get(Object *obj, Visitor *v, const char *name, 1734 void *opaque, Error **errp) 1735 { 1736 bool value = RISCV_CPU(obj)->cfg.mmu; 1737 1738 visit_type_bool(v, name, &value, errp); 1739 } 1740 1741 static const PropertyInfo prop_mmu = { 1742 .name = "mmu", 1743 .get = prop_mmu_get, 1744 .set = prop_mmu_set, 1745 }; 1746 1747 static void prop_pmp_set(Object *obj, Visitor *v, const char *name, 1748 void *opaque, Error **errp) 1749 { 1750 RISCVCPU *cpu = RISCV_CPU(obj); 1751 bool value; 1752 1753 visit_type_bool(v, name, &value, errp); 1754 1755 if (cpu->cfg.pmp != value && riscv_cpu_is_vendor(obj)) { 1756 cpu_set_prop_err(cpu, name, errp); 1757 return; 1758 } 1759 1760 cpu_option_add_user_setting(name, value); 1761 cpu->cfg.pmp = value; 1762 } 1763 1764 static void prop_pmp_get(Object *obj, Visitor *v, const char *name, 1765 void *opaque, Error **errp) 1766 { 1767 bool value = RISCV_CPU(obj)->cfg.pmp; 1768 1769 visit_type_bool(v, name, &value, errp); 1770 } 1771 1772 static const PropertyInfo prop_pmp = { 1773 .name = "pmp", 1774 .get = prop_pmp_get, 1775 .set = prop_pmp_set, 1776 }; 1777 1778 static int priv_spec_from_str(const char *priv_spec_str) 1779 { 1780 int priv_version = -1; 1781 1782 if (!g_strcmp0(priv_spec_str, PRIV_VER_1_13_0_STR)) { 1783 priv_version = PRIV_VERSION_1_13_0; 1784 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_12_0_STR)) { 1785 priv_version = PRIV_VERSION_1_12_0; 1786 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_11_0_STR)) { 1787 priv_version = PRIV_VERSION_1_11_0; 1788 } else if (!g_strcmp0(priv_spec_str, PRIV_VER_1_10_0_STR)) { 1789 priv_version = PRIV_VERSION_1_10_0; 1790 } 1791 1792 return priv_version; 1793 } 1794 1795 const char *priv_spec_to_str(int priv_version) 1796 { 1797 switch (priv_version) { 1798 case PRIV_VERSION_1_10_0: 1799 return PRIV_VER_1_10_0_STR; 1800 case PRIV_VERSION_1_11_0: 1801 return PRIV_VER_1_11_0_STR; 1802 case PRIV_VERSION_1_12_0: 1803 return PRIV_VER_1_12_0_STR; 1804 case PRIV_VERSION_1_13_0: 1805 return PRIV_VER_1_13_0_STR; 1806 default: 1807 return NULL; 1808 } 1809 } 1810 1811 static void prop_priv_spec_set(Object *obj, Visitor *v, const char *name, 1812 void *opaque, Error **errp) 1813 { 1814 RISCVCPU *cpu = RISCV_CPU(obj); 1815 g_autofree char *value = NULL; 1816 int priv_version = -1; 1817 1818 visit_type_str(v, name, &value, errp); 1819 1820 priv_version = priv_spec_from_str(value); 1821 if (priv_version < 0) { 1822 error_setg(errp, "Unsupported privilege spec version '%s'", value); 1823 return; 1824 } 1825 1826 if (priv_version != cpu->env.priv_ver && riscv_cpu_is_vendor(obj)) { 1827 cpu_set_prop_err(cpu, name, errp); 1828 error_append_hint(errp, "Current '%s' val: %s\n", name, 1829 object_property_get_str(obj, name, NULL)); 1830 return; 1831 } 1832 1833 cpu_option_add_user_setting(name, priv_version); 1834 cpu->env.priv_ver = priv_version; 1835 } 1836 1837 static void prop_priv_spec_get(Object *obj, Visitor *v, const char *name, 1838 void *opaque, Error **errp) 1839 { 1840 RISCVCPU *cpu = RISCV_CPU(obj); 1841 const char *value = priv_spec_to_str(cpu->env.priv_ver); 1842 1843 visit_type_str(v, name, (char **)&value, errp); 1844 } 1845 1846 static const PropertyInfo prop_priv_spec = { 1847 .name = "priv_spec", 1848 .get = prop_priv_spec_get, 1849 .set = prop_priv_spec_set, 1850 }; 1851 1852 static void prop_vext_spec_set(Object *obj, Visitor *v, const char *name, 1853 void *opaque, Error **errp) 1854 { 1855 RISCVCPU *cpu = RISCV_CPU(obj); 1856 g_autofree char *value = NULL; 1857 1858 visit_type_str(v, name, &value, errp); 1859 1860 if (g_strcmp0(value, VEXT_VER_1_00_0_STR) != 0) { 1861 error_setg(errp, "Unsupported vector spec version '%s'", value); 1862 return; 1863 } 1864 1865 cpu_option_add_user_setting(name, VEXT_VERSION_1_00_0); 1866 cpu->env.vext_ver = VEXT_VERSION_1_00_0; 1867 } 1868 1869 static void prop_vext_spec_get(Object *obj, Visitor *v, const char *name, 1870 void *opaque, Error **errp) 1871 { 1872 const char *value = VEXT_VER_1_00_0_STR; 1873 1874 visit_type_str(v, name, (char **)&value, errp); 1875 } 1876 1877 static const PropertyInfo prop_vext_spec = { 1878 .name = "vext_spec", 1879 .get = prop_vext_spec_get, 1880 .set = prop_vext_spec_set, 1881 }; 1882 1883 static void prop_vlen_set(Object *obj, Visitor *v, const char *name, 1884 void *opaque, Error **errp) 1885 { 1886 RISCVCPU *cpu = RISCV_CPU(obj); 1887 uint16_t value; 1888 1889 if (!visit_type_uint16(v, name, &value, errp)) { 1890 return; 1891 } 1892 1893 if (!is_power_of_2(value)) { 1894 error_setg(errp, "Vector extension VLEN must be power of 2"); 1895 return; 1896 } 1897 1898 if (value != cpu->cfg.vlenb && riscv_cpu_is_vendor(obj)) { 1899 cpu_set_prop_err(cpu, name, errp); 1900 error_append_hint(errp, "Current '%s' val: %u\n", 1901 name, cpu->cfg.vlenb << 3); 1902 return; 1903 } 1904 1905 cpu_option_add_user_setting(name, value); 1906 cpu->cfg.vlenb = value >> 3; 1907 } 1908 1909 static void prop_vlen_get(Object *obj, Visitor *v, const char *name, 1910 void *opaque, Error **errp) 1911 { 1912 uint16_t value = RISCV_CPU(obj)->cfg.vlenb << 3; 1913 1914 visit_type_uint16(v, name, &value, errp); 1915 } 1916 1917 static const PropertyInfo prop_vlen = { 1918 .name = "vlen", 1919 .get = prop_vlen_get, 1920 .set = prop_vlen_set, 1921 }; 1922 1923 static void prop_elen_set(Object *obj, Visitor *v, const char *name, 1924 void *opaque, Error **errp) 1925 { 1926 RISCVCPU *cpu = RISCV_CPU(obj); 1927 uint16_t value; 1928 1929 if (!visit_type_uint16(v, name, &value, errp)) { 1930 return; 1931 } 1932 1933 if (!is_power_of_2(value)) { 1934 error_setg(errp, "Vector extension ELEN must be power of 2"); 1935 return; 1936 } 1937 1938 if (value != cpu->cfg.elen && riscv_cpu_is_vendor(obj)) { 1939 cpu_set_prop_err(cpu, name, errp); 1940 error_append_hint(errp, "Current '%s' val: %u\n", 1941 name, cpu->cfg.elen); 1942 return; 1943 } 1944 1945 cpu_option_add_user_setting(name, value); 1946 cpu->cfg.elen = value; 1947 } 1948 1949 static void prop_elen_get(Object *obj, Visitor *v, const char *name, 1950 void *opaque, Error **errp) 1951 { 1952 uint16_t value = RISCV_CPU(obj)->cfg.elen; 1953 1954 visit_type_uint16(v, name, &value, errp); 1955 } 1956 1957 static const PropertyInfo prop_elen = { 1958 .name = "elen", 1959 .get = prop_elen_get, 1960 .set = prop_elen_set, 1961 }; 1962 1963 static void prop_cbom_blksize_set(Object *obj, Visitor *v, const char *name, 1964 void *opaque, Error **errp) 1965 { 1966 RISCVCPU *cpu = RISCV_CPU(obj); 1967 uint16_t value; 1968 1969 if (!visit_type_uint16(v, name, &value, errp)) { 1970 return; 1971 } 1972 1973 if (value != cpu->cfg.cbom_blocksize && riscv_cpu_is_vendor(obj)) { 1974 cpu_set_prop_err(cpu, name, errp); 1975 error_append_hint(errp, "Current '%s' val: %u\n", 1976 name, cpu->cfg.cbom_blocksize); 1977 return; 1978 } 1979 1980 cpu_option_add_user_setting(name, value); 1981 cpu->cfg.cbom_blocksize = value; 1982 } 1983 1984 static void prop_cbom_blksize_get(Object *obj, Visitor *v, const char *name, 1985 void *opaque, Error **errp) 1986 { 1987 uint16_t value = RISCV_CPU(obj)->cfg.cbom_blocksize; 1988 1989 visit_type_uint16(v, name, &value, errp); 1990 } 1991 1992 static const PropertyInfo prop_cbom_blksize = { 1993 .name = "cbom_blocksize", 1994 .get = prop_cbom_blksize_get, 1995 .set = prop_cbom_blksize_set, 1996 }; 1997 1998 static void prop_cbop_blksize_set(Object *obj, Visitor *v, const char *name, 1999 void *opaque, Error **errp) 2000 { 2001 RISCVCPU *cpu = RISCV_CPU(obj); 2002 uint16_t value; 2003 2004 if (!visit_type_uint16(v, name, &value, errp)) { 2005 return; 2006 } 2007 2008 if (value != cpu->cfg.cbop_blocksize && riscv_cpu_is_vendor(obj)) { 2009 cpu_set_prop_err(cpu, name, errp); 2010 error_append_hint(errp, "Current '%s' val: %u\n", 2011 name, cpu->cfg.cbop_blocksize); 2012 return; 2013 } 2014 2015 cpu_option_add_user_setting(name, value); 2016 cpu->cfg.cbop_blocksize = value; 2017 } 2018 2019 static void prop_cbop_blksize_get(Object *obj, Visitor *v, const char *name, 2020 void *opaque, Error **errp) 2021 { 2022 uint16_t value = RISCV_CPU(obj)->cfg.cbop_blocksize; 2023 2024 visit_type_uint16(v, name, &value, errp); 2025 } 2026 2027 static const PropertyInfo prop_cbop_blksize = { 2028 .name = "cbop_blocksize", 2029 .get = prop_cbop_blksize_get, 2030 .set = prop_cbop_blksize_set, 2031 }; 2032 2033 static void prop_cboz_blksize_set(Object *obj, Visitor *v, const char *name, 2034 void *opaque, Error **errp) 2035 { 2036 RISCVCPU *cpu = RISCV_CPU(obj); 2037 uint16_t value; 2038 2039 if (!visit_type_uint16(v, name, &value, errp)) { 2040 return; 2041 } 2042 2043 if (value != cpu->cfg.cboz_blocksize && riscv_cpu_is_vendor(obj)) { 2044 cpu_set_prop_err(cpu, name, errp); 2045 error_append_hint(errp, "Current '%s' val: %u\n", 2046 name, cpu->cfg.cboz_blocksize); 2047 return; 2048 } 2049 2050 cpu_option_add_user_setting(name, value); 2051 cpu->cfg.cboz_blocksize = value; 2052 } 2053 2054 static void prop_cboz_blksize_get(Object *obj, Visitor *v, const char *name, 2055 void *opaque, Error **errp) 2056 { 2057 uint16_t value = RISCV_CPU(obj)->cfg.cboz_blocksize; 2058 2059 visit_type_uint16(v, name, &value, errp); 2060 } 2061 2062 static const PropertyInfo prop_cboz_blksize = { 2063 .name = "cboz_blocksize", 2064 .get = prop_cboz_blksize_get, 2065 .set = prop_cboz_blksize_set, 2066 }; 2067 2068 static void prop_mvendorid_set(Object *obj, Visitor *v, const char *name, 2069 void *opaque, Error **errp) 2070 { 2071 bool dynamic_cpu = riscv_cpu_is_dynamic(obj); 2072 RISCVCPU *cpu = RISCV_CPU(obj); 2073 uint32_t prev_val = cpu->cfg.mvendorid; 2074 uint32_t value; 2075 2076 if (!visit_type_uint32(v, name, &value, errp)) { 2077 return; 2078 } 2079 2080 if (!dynamic_cpu && prev_val != value) { 2081 error_setg(errp, "Unable to change %s mvendorid (0x%x)", 2082 object_get_typename(obj), prev_val); 2083 return; 2084 } 2085 2086 cpu->cfg.mvendorid = value; 2087 } 2088 2089 static void prop_mvendorid_get(Object *obj, Visitor *v, const char *name, 2090 void *opaque, Error **errp) 2091 { 2092 uint32_t value = RISCV_CPU(obj)->cfg.mvendorid; 2093 2094 visit_type_uint32(v, name, &value, errp); 2095 } 2096 2097 static const PropertyInfo prop_mvendorid = { 2098 .name = "mvendorid", 2099 .get = prop_mvendorid_get, 2100 .set = prop_mvendorid_set, 2101 }; 2102 2103 static void prop_mimpid_set(Object *obj, Visitor *v, const char *name, 2104 void *opaque, Error **errp) 2105 { 2106 bool dynamic_cpu = riscv_cpu_is_dynamic(obj); 2107 RISCVCPU *cpu = RISCV_CPU(obj); 2108 uint64_t prev_val = cpu->cfg.mimpid; 2109 uint64_t value; 2110 2111 if (!visit_type_uint64(v, name, &value, errp)) { 2112 return; 2113 } 2114 2115 if (!dynamic_cpu && prev_val != value) { 2116 error_setg(errp, "Unable to change %s mimpid (0x%" PRIu64 ")", 2117 object_get_typename(obj), prev_val); 2118 return; 2119 } 2120 2121 cpu->cfg.mimpid = value; 2122 } 2123 2124 static void prop_mimpid_get(Object *obj, Visitor *v, const char *name, 2125 void *opaque, Error **errp) 2126 { 2127 uint64_t value = RISCV_CPU(obj)->cfg.mimpid; 2128 2129 visit_type_uint64(v, name, &value, errp); 2130 } 2131 2132 static const PropertyInfo prop_mimpid = { 2133 .name = "mimpid", 2134 .get = prop_mimpid_get, 2135 .set = prop_mimpid_set, 2136 }; 2137 2138 static void prop_marchid_set(Object *obj, Visitor *v, const char *name, 2139 void *opaque, Error **errp) 2140 { 2141 bool dynamic_cpu = riscv_cpu_is_dynamic(obj); 2142 RISCVCPU *cpu = RISCV_CPU(obj); 2143 uint64_t prev_val = cpu->cfg.marchid; 2144 uint64_t value, invalid_val; 2145 uint32_t mxlen = 0; 2146 2147 if (!visit_type_uint64(v, name, &value, errp)) { 2148 return; 2149 } 2150 2151 if (!dynamic_cpu && prev_val != value) { 2152 error_setg(errp, "Unable to change %s marchid (0x%" PRIu64 ")", 2153 object_get_typename(obj), prev_val); 2154 return; 2155 } 2156 2157 switch (riscv_cpu_mxl(&cpu->env)) { 2158 case MXL_RV32: 2159 mxlen = 32; 2160 break; 2161 case MXL_RV64: 2162 case MXL_RV128: 2163 mxlen = 64; 2164 break; 2165 default: 2166 g_assert_not_reached(); 2167 } 2168 2169 invalid_val = 1LL << (mxlen - 1); 2170 2171 if (value == invalid_val) { 2172 error_setg(errp, "Unable to set marchid with MSB (%u) bit set " 2173 "and the remaining bits zero", mxlen); 2174 return; 2175 } 2176 2177 cpu->cfg.marchid = value; 2178 } 2179 2180 static void prop_marchid_get(Object *obj, Visitor *v, const char *name, 2181 void *opaque, Error **errp) 2182 { 2183 uint64_t value = RISCV_CPU(obj)->cfg.marchid; 2184 2185 visit_type_uint64(v, name, &value, errp); 2186 } 2187 2188 static const PropertyInfo prop_marchid = { 2189 .name = "marchid", 2190 .get = prop_marchid_get, 2191 .set = prop_marchid_set, 2192 }; 2193 2194 /* 2195 * RVA22U64 defines some 'named features' that are cache 2196 * related: Za64rs, Zic64b, Ziccif, Ziccrse, Ziccamoa 2197 * and Zicclsm. They are always implemented in TCG and 2198 * doesn't need to be manually enabled by the profile. 2199 */ 2200 static RISCVCPUProfile RVA22U64 = { 2201 .parent = NULL, 2202 .name = "rva22u64", 2203 .misa_ext = RVI | RVM | RVA | RVF | RVD | RVC | RVU, 2204 .priv_spec = RISCV_PROFILE_ATTR_UNUSED, 2205 .satp_mode = RISCV_PROFILE_ATTR_UNUSED, 2206 .ext_offsets = { 2207 CPU_CFG_OFFSET(ext_zicsr), CPU_CFG_OFFSET(ext_zihintpause), 2208 CPU_CFG_OFFSET(ext_zba), CPU_CFG_OFFSET(ext_zbb), 2209 CPU_CFG_OFFSET(ext_zbs), CPU_CFG_OFFSET(ext_zfhmin), 2210 CPU_CFG_OFFSET(ext_zkt), CPU_CFG_OFFSET(ext_zicntr), 2211 CPU_CFG_OFFSET(ext_zihpm), CPU_CFG_OFFSET(ext_zicbom), 2212 CPU_CFG_OFFSET(ext_zicbop), CPU_CFG_OFFSET(ext_zicboz), 2213 2214 /* mandatory named features for this profile */ 2215 CPU_CFG_OFFSET(ext_zic64b), 2216 2217 RISCV_PROFILE_EXT_LIST_END 2218 } 2219 }; 2220 2221 /* 2222 * As with RVA22U64, RVA22S64 also defines 'named features'. 2223 * 2224 * Cache related features that we consider enabled since we don't 2225 * implement cache: Ssccptr 2226 * 2227 * Other named features that we already implement: Sstvecd, Sstvala, 2228 * Sscounterenw 2229 * 2230 * The remaining features/extensions comes from RVA22U64. 2231 */ 2232 static RISCVCPUProfile RVA22S64 = { 2233 .parent = &RVA22U64, 2234 .name = "rva22s64", 2235 .misa_ext = RVS, 2236 .priv_spec = PRIV_VERSION_1_12_0, 2237 .satp_mode = VM_1_10_SV39, 2238 .ext_offsets = { 2239 /* rva22s64 exts */ 2240 CPU_CFG_OFFSET(ext_zifencei), CPU_CFG_OFFSET(ext_svpbmt), 2241 CPU_CFG_OFFSET(ext_svinval), CPU_CFG_OFFSET(ext_svade), 2242 2243 RISCV_PROFILE_EXT_LIST_END 2244 } 2245 }; 2246 2247 RISCVCPUProfile *riscv_profiles[] = { 2248 &RVA22U64, 2249 &RVA22S64, 2250 NULL, 2251 }; 2252 2253 static RISCVCPUImpliedExtsRule RVA_IMPLIED = { 2254 .is_misa = true, 2255 .ext = RVA, 2256 .implied_multi_exts = { 2257 CPU_CFG_OFFSET(ext_zalrsc), CPU_CFG_OFFSET(ext_zaamo), 2258 2259 RISCV_IMPLIED_EXTS_RULE_END 2260 }, 2261 }; 2262 2263 static RISCVCPUImpliedExtsRule RVD_IMPLIED = { 2264 .is_misa = true, 2265 .ext = RVD, 2266 .implied_misa_exts = RVF, 2267 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END }, 2268 }; 2269 2270 static RISCVCPUImpliedExtsRule RVF_IMPLIED = { 2271 .is_misa = true, 2272 .ext = RVF, 2273 .implied_multi_exts = { 2274 CPU_CFG_OFFSET(ext_zicsr), 2275 2276 RISCV_IMPLIED_EXTS_RULE_END 2277 }, 2278 }; 2279 2280 static RISCVCPUImpliedExtsRule RVM_IMPLIED = { 2281 .is_misa = true, 2282 .ext = RVM, 2283 .implied_multi_exts = { 2284 CPU_CFG_OFFSET(ext_zmmul), 2285 2286 RISCV_IMPLIED_EXTS_RULE_END 2287 }, 2288 }; 2289 2290 static RISCVCPUImpliedExtsRule RVV_IMPLIED = { 2291 .is_misa = true, 2292 .ext = RVV, 2293 .implied_multi_exts = { 2294 CPU_CFG_OFFSET(ext_zve64d), 2295 2296 RISCV_IMPLIED_EXTS_RULE_END 2297 }, 2298 }; 2299 2300 static RISCVCPUImpliedExtsRule ZCB_IMPLIED = { 2301 .ext = CPU_CFG_OFFSET(ext_zcb), 2302 .implied_multi_exts = { 2303 CPU_CFG_OFFSET(ext_zca), 2304 2305 RISCV_IMPLIED_EXTS_RULE_END 2306 }, 2307 }; 2308 2309 static RISCVCPUImpliedExtsRule ZCD_IMPLIED = { 2310 .ext = CPU_CFG_OFFSET(ext_zcd), 2311 .implied_misa_exts = RVD, 2312 .implied_multi_exts = { 2313 CPU_CFG_OFFSET(ext_zca), 2314 2315 RISCV_IMPLIED_EXTS_RULE_END 2316 }, 2317 }; 2318 2319 static RISCVCPUImpliedExtsRule ZCE_IMPLIED = { 2320 .ext = CPU_CFG_OFFSET(ext_zce), 2321 .implied_multi_exts = { 2322 CPU_CFG_OFFSET(ext_zcb), CPU_CFG_OFFSET(ext_zcmp), 2323 CPU_CFG_OFFSET(ext_zcmt), 2324 2325 RISCV_IMPLIED_EXTS_RULE_END 2326 }, 2327 }; 2328 2329 static RISCVCPUImpliedExtsRule ZCF_IMPLIED = { 2330 .ext = CPU_CFG_OFFSET(ext_zcf), 2331 .implied_misa_exts = RVF, 2332 .implied_multi_exts = { 2333 CPU_CFG_OFFSET(ext_zca), 2334 2335 RISCV_IMPLIED_EXTS_RULE_END 2336 }, 2337 }; 2338 2339 static RISCVCPUImpliedExtsRule ZCMP_IMPLIED = { 2340 .ext = CPU_CFG_OFFSET(ext_zcmp), 2341 .implied_multi_exts = { 2342 CPU_CFG_OFFSET(ext_zca), 2343 2344 RISCV_IMPLIED_EXTS_RULE_END 2345 }, 2346 }; 2347 2348 static RISCVCPUImpliedExtsRule ZCMT_IMPLIED = { 2349 .ext = CPU_CFG_OFFSET(ext_zcmt), 2350 .implied_multi_exts = { 2351 CPU_CFG_OFFSET(ext_zca), CPU_CFG_OFFSET(ext_zicsr), 2352 2353 RISCV_IMPLIED_EXTS_RULE_END 2354 }, 2355 }; 2356 2357 static RISCVCPUImpliedExtsRule ZDINX_IMPLIED = { 2358 .ext = CPU_CFG_OFFSET(ext_zdinx), 2359 .implied_multi_exts = { 2360 CPU_CFG_OFFSET(ext_zfinx), 2361 2362 RISCV_IMPLIED_EXTS_RULE_END 2363 }, 2364 }; 2365 2366 static RISCVCPUImpliedExtsRule ZFA_IMPLIED = { 2367 .ext = CPU_CFG_OFFSET(ext_zfa), 2368 .implied_misa_exts = RVF, 2369 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END }, 2370 }; 2371 2372 static RISCVCPUImpliedExtsRule ZFBFMIN_IMPLIED = { 2373 .ext = CPU_CFG_OFFSET(ext_zfbfmin), 2374 .implied_misa_exts = RVF, 2375 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END }, 2376 }; 2377 2378 static RISCVCPUImpliedExtsRule ZFH_IMPLIED = { 2379 .ext = CPU_CFG_OFFSET(ext_zfh), 2380 .implied_multi_exts = { 2381 CPU_CFG_OFFSET(ext_zfhmin), 2382 2383 RISCV_IMPLIED_EXTS_RULE_END 2384 }, 2385 }; 2386 2387 static RISCVCPUImpliedExtsRule ZFHMIN_IMPLIED = { 2388 .ext = CPU_CFG_OFFSET(ext_zfhmin), 2389 .implied_misa_exts = RVF, 2390 .implied_multi_exts = { RISCV_IMPLIED_EXTS_RULE_END }, 2391 }; 2392 2393 static RISCVCPUImpliedExtsRule ZFINX_IMPLIED = { 2394 .ext = CPU_CFG_OFFSET(ext_zfinx), 2395 .implied_multi_exts = { 2396 CPU_CFG_OFFSET(ext_zicsr), 2397 2398 RISCV_IMPLIED_EXTS_RULE_END 2399 }, 2400 }; 2401 2402 static RISCVCPUImpliedExtsRule ZHINX_IMPLIED = { 2403 .ext = CPU_CFG_OFFSET(ext_zhinx), 2404 .implied_multi_exts = { 2405 CPU_CFG_OFFSET(ext_zhinxmin), 2406 2407 RISCV_IMPLIED_EXTS_RULE_END 2408 }, 2409 }; 2410 2411 static RISCVCPUImpliedExtsRule ZHINXMIN_IMPLIED = { 2412 .ext = CPU_CFG_OFFSET(ext_zhinxmin), 2413 .implied_multi_exts = { 2414 CPU_CFG_OFFSET(ext_zfinx), 2415 2416 RISCV_IMPLIED_EXTS_RULE_END 2417 }, 2418 }; 2419 2420 static RISCVCPUImpliedExtsRule ZICNTR_IMPLIED = { 2421 .ext = CPU_CFG_OFFSET(ext_zicntr), 2422 .implied_multi_exts = { 2423 CPU_CFG_OFFSET(ext_zicsr), 2424 2425 RISCV_IMPLIED_EXTS_RULE_END 2426 }, 2427 }; 2428 2429 static RISCVCPUImpliedExtsRule ZIHPM_IMPLIED = { 2430 .ext = CPU_CFG_OFFSET(ext_zihpm), 2431 .implied_multi_exts = { 2432 CPU_CFG_OFFSET(ext_zicsr), 2433 2434 RISCV_IMPLIED_EXTS_RULE_END 2435 }, 2436 }; 2437 2438 static RISCVCPUImpliedExtsRule ZK_IMPLIED = { 2439 .ext = CPU_CFG_OFFSET(ext_zk), 2440 .implied_multi_exts = { 2441 CPU_CFG_OFFSET(ext_zkn), CPU_CFG_OFFSET(ext_zkr), 2442 CPU_CFG_OFFSET(ext_zkt), 2443 2444 RISCV_IMPLIED_EXTS_RULE_END 2445 }, 2446 }; 2447 2448 static RISCVCPUImpliedExtsRule ZKN_IMPLIED = { 2449 .ext = CPU_CFG_OFFSET(ext_zkn), 2450 .implied_multi_exts = { 2451 CPU_CFG_OFFSET(ext_zbkb), CPU_CFG_OFFSET(ext_zbkc), 2452 CPU_CFG_OFFSET(ext_zbkx), CPU_CFG_OFFSET(ext_zkne), 2453 CPU_CFG_OFFSET(ext_zknd), CPU_CFG_OFFSET(ext_zknh), 2454 2455 RISCV_IMPLIED_EXTS_RULE_END 2456 }, 2457 }; 2458 2459 static RISCVCPUImpliedExtsRule ZKS_IMPLIED = { 2460 .ext = CPU_CFG_OFFSET(ext_zks), 2461 .implied_multi_exts = { 2462 CPU_CFG_OFFSET(ext_zbkb), CPU_CFG_OFFSET(ext_zbkc), 2463 CPU_CFG_OFFSET(ext_zbkx), CPU_CFG_OFFSET(ext_zksed), 2464 CPU_CFG_OFFSET(ext_zksh), 2465 2466 RISCV_IMPLIED_EXTS_RULE_END 2467 }, 2468 }; 2469 2470 static RISCVCPUImpliedExtsRule ZVBB_IMPLIED = { 2471 .ext = CPU_CFG_OFFSET(ext_zvbb), 2472 .implied_multi_exts = { 2473 CPU_CFG_OFFSET(ext_zvkb), 2474 2475 RISCV_IMPLIED_EXTS_RULE_END 2476 }, 2477 }; 2478 2479 static RISCVCPUImpliedExtsRule ZVE32F_IMPLIED = { 2480 .ext = CPU_CFG_OFFSET(ext_zve32f), 2481 .implied_misa_exts = RVF, 2482 .implied_multi_exts = { 2483 CPU_CFG_OFFSET(ext_zve32x), 2484 2485 RISCV_IMPLIED_EXTS_RULE_END 2486 }, 2487 }; 2488 2489 static RISCVCPUImpliedExtsRule ZVE32X_IMPLIED = { 2490 .ext = CPU_CFG_OFFSET(ext_zve32x), 2491 .implied_multi_exts = { 2492 CPU_CFG_OFFSET(ext_zicsr), 2493 2494 RISCV_IMPLIED_EXTS_RULE_END 2495 }, 2496 }; 2497 2498 static RISCVCPUImpliedExtsRule ZVE64D_IMPLIED = { 2499 .ext = CPU_CFG_OFFSET(ext_zve64d), 2500 .implied_misa_exts = RVD, 2501 .implied_multi_exts = { 2502 CPU_CFG_OFFSET(ext_zve64f), 2503 2504 RISCV_IMPLIED_EXTS_RULE_END 2505 }, 2506 }; 2507 2508 static RISCVCPUImpliedExtsRule ZVE64F_IMPLIED = { 2509 .ext = CPU_CFG_OFFSET(ext_zve64f), 2510 .implied_misa_exts = RVF, 2511 .implied_multi_exts = { 2512 CPU_CFG_OFFSET(ext_zve32f), CPU_CFG_OFFSET(ext_zve64x), 2513 2514 RISCV_IMPLIED_EXTS_RULE_END 2515 }, 2516 }; 2517 2518 static RISCVCPUImpliedExtsRule ZVE64X_IMPLIED = { 2519 .ext = CPU_CFG_OFFSET(ext_zve64x), 2520 .implied_multi_exts = { 2521 CPU_CFG_OFFSET(ext_zve32x), 2522 2523 RISCV_IMPLIED_EXTS_RULE_END 2524 }, 2525 }; 2526 2527 static RISCVCPUImpliedExtsRule ZVFBFMIN_IMPLIED = { 2528 .ext = CPU_CFG_OFFSET(ext_zvfbfmin), 2529 .implied_multi_exts = { 2530 CPU_CFG_OFFSET(ext_zve32f), 2531 2532 RISCV_IMPLIED_EXTS_RULE_END 2533 }, 2534 }; 2535 2536 static RISCVCPUImpliedExtsRule ZVFBFWMA_IMPLIED = { 2537 .ext = CPU_CFG_OFFSET(ext_zvfbfwma), 2538 .implied_multi_exts = { 2539 CPU_CFG_OFFSET(ext_zvfbfmin), CPU_CFG_OFFSET(ext_zfbfmin), 2540 2541 RISCV_IMPLIED_EXTS_RULE_END 2542 }, 2543 }; 2544 2545 static RISCVCPUImpliedExtsRule ZVFH_IMPLIED = { 2546 .ext = CPU_CFG_OFFSET(ext_zvfh), 2547 .implied_multi_exts = { 2548 CPU_CFG_OFFSET(ext_zvfhmin), CPU_CFG_OFFSET(ext_zfhmin), 2549 2550 RISCV_IMPLIED_EXTS_RULE_END 2551 }, 2552 }; 2553 2554 static RISCVCPUImpliedExtsRule ZVFHMIN_IMPLIED = { 2555 .ext = CPU_CFG_OFFSET(ext_zvfhmin), 2556 .implied_multi_exts = { 2557 CPU_CFG_OFFSET(ext_zve32f), 2558 2559 RISCV_IMPLIED_EXTS_RULE_END 2560 }, 2561 }; 2562 2563 static RISCVCPUImpliedExtsRule ZVKN_IMPLIED = { 2564 .ext = CPU_CFG_OFFSET(ext_zvkn), 2565 .implied_multi_exts = { 2566 CPU_CFG_OFFSET(ext_zvkned), CPU_CFG_OFFSET(ext_zvknhb), 2567 CPU_CFG_OFFSET(ext_zvkb), CPU_CFG_OFFSET(ext_zvkt), 2568 2569 RISCV_IMPLIED_EXTS_RULE_END 2570 }, 2571 }; 2572 2573 static RISCVCPUImpliedExtsRule ZVKNC_IMPLIED = { 2574 .ext = CPU_CFG_OFFSET(ext_zvknc), 2575 .implied_multi_exts = { 2576 CPU_CFG_OFFSET(ext_zvkn), CPU_CFG_OFFSET(ext_zvbc), 2577 2578 RISCV_IMPLIED_EXTS_RULE_END 2579 }, 2580 }; 2581 2582 static RISCVCPUImpliedExtsRule ZVKNG_IMPLIED = { 2583 .ext = CPU_CFG_OFFSET(ext_zvkng), 2584 .implied_multi_exts = { 2585 CPU_CFG_OFFSET(ext_zvkn), CPU_CFG_OFFSET(ext_zvkg), 2586 2587 RISCV_IMPLIED_EXTS_RULE_END 2588 }, 2589 }; 2590 2591 static RISCVCPUImpliedExtsRule ZVKNHB_IMPLIED = { 2592 .ext = CPU_CFG_OFFSET(ext_zvknhb), 2593 .implied_multi_exts = { 2594 CPU_CFG_OFFSET(ext_zve64x), 2595 2596 RISCV_IMPLIED_EXTS_RULE_END 2597 }, 2598 }; 2599 2600 static RISCVCPUImpliedExtsRule ZVKS_IMPLIED = { 2601 .ext = CPU_CFG_OFFSET(ext_zvks), 2602 .implied_multi_exts = { 2603 CPU_CFG_OFFSET(ext_zvksed), CPU_CFG_OFFSET(ext_zvksh), 2604 CPU_CFG_OFFSET(ext_zvkb), CPU_CFG_OFFSET(ext_zvkt), 2605 2606 RISCV_IMPLIED_EXTS_RULE_END 2607 }, 2608 }; 2609 2610 static RISCVCPUImpliedExtsRule ZVKSC_IMPLIED = { 2611 .ext = CPU_CFG_OFFSET(ext_zvksc), 2612 .implied_multi_exts = { 2613 CPU_CFG_OFFSET(ext_zvks), CPU_CFG_OFFSET(ext_zvbc), 2614 2615 RISCV_IMPLIED_EXTS_RULE_END 2616 }, 2617 }; 2618 2619 static RISCVCPUImpliedExtsRule ZVKSG_IMPLIED = { 2620 .ext = CPU_CFG_OFFSET(ext_zvksg), 2621 .implied_multi_exts = { 2622 CPU_CFG_OFFSET(ext_zvks), CPU_CFG_OFFSET(ext_zvkg), 2623 2624 RISCV_IMPLIED_EXTS_RULE_END 2625 }, 2626 }; 2627 2628 RISCVCPUImpliedExtsRule *riscv_misa_ext_implied_rules[] = { 2629 &RVA_IMPLIED, &RVD_IMPLIED, &RVF_IMPLIED, 2630 &RVM_IMPLIED, &RVV_IMPLIED, NULL 2631 }; 2632 2633 RISCVCPUImpliedExtsRule *riscv_multi_ext_implied_rules[] = { 2634 &ZCB_IMPLIED, &ZCD_IMPLIED, &ZCE_IMPLIED, 2635 &ZCF_IMPLIED, &ZCMP_IMPLIED, &ZCMT_IMPLIED, 2636 &ZDINX_IMPLIED, &ZFA_IMPLIED, &ZFBFMIN_IMPLIED, 2637 &ZFH_IMPLIED, &ZFHMIN_IMPLIED, &ZFINX_IMPLIED, 2638 &ZHINX_IMPLIED, &ZHINXMIN_IMPLIED, &ZICNTR_IMPLIED, 2639 &ZIHPM_IMPLIED, &ZK_IMPLIED, &ZKN_IMPLIED, 2640 &ZKS_IMPLIED, &ZVBB_IMPLIED, &ZVE32F_IMPLIED, 2641 &ZVE32X_IMPLIED, &ZVE64D_IMPLIED, &ZVE64F_IMPLIED, 2642 &ZVE64X_IMPLIED, &ZVFBFMIN_IMPLIED, &ZVFBFWMA_IMPLIED, 2643 &ZVFH_IMPLIED, &ZVFHMIN_IMPLIED, &ZVKN_IMPLIED, 2644 &ZVKNC_IMPLIED, &ZVKNG_IMPLIED, &ZVKNHB_IMPLIED, 2645 &ZVKS_IMPLIED, &ZVKSC_IMPLIED, &ZVKSG_IMPLIED, 2646 NULL 2647 }; 2648 2649 static Property riscv_cpu_properties[] = { 2650 DEFINE_PROP_BOOL("debug", RISCVCPU, cfg.debug, true), 2651 2652 {.name = "pmu-mask", .info = &prop_pmu_mask}, 2653 {.name = "pmu-num", .info = &prop_pmu_num}, /* Deprecated */ 2654 2655 {.name = "mmu", .info = &prop_mmu}, 2656 {.name = "pmp", .info = &prop_pmp}, 2657 2658 {.name = "priv_spec", .info = &prop_priv_spec}, 2659 {.name = "vext_spec", .info = &prop_vext_spec}, 2660 2661 {.name = "vlen", .info = &prop_vlen}, 2662 {.name = "elen", .info = &prop_elen}, 2663 2664 {.name = "cbom_blocksize", .info = &prop_cbom_blksize}, 2665 {.name = "cbop_blocksize", .info = &prop_cbop_blksize}, 2666 {.name = "cboz_blocksize", .info = &prop_cboz_blksize}, 2667 2668 {.name = "mvendorid", .info = &prop_mvendorid}, 2669 {.name = "mimpid", .info = &prop_mimpid}, 2670 {.name = "marchid", .info = &prop_marchid}, 2671 2672 #ifndef CONFIG_USER_ONLY 2673 DEFINE_PROP_UINT64("resetvec", RISCVCPU, env.resetvec, DEFAULT_RSTVEC), 2674 #endif 2675 2676 DEFINE_PROP_BOOL("short-isa-string", RISCVCPU, cfg.short_isa_string, false), 2677 2678 DEFINE_PROP_BOOL("rvv_ta_all_1s", RISCVCPU, cfg.rvv_ta_all_1s, false), 2679 DEFINE_PROP_BOOL("rvv_ma_all_1s", RISCVCPU, cfg.rvv_ma_all_1s, false), 2680 2681 /* 2682 * write_misa() is marked as experimental for now so mark 2683 * it with -x and default to 'false'. 2684 */ 2685 DEFINE_PROP_BOOL("x-misa-w", RISCVCPU, cfg.misa_w, false), 2686 DEFINE_PROP_END_OF_LIST(), 2687 }; 2688 2689 #if defined(TARGET_RISCV64) 2690 static void rva22u64_profile_cpu_init(Object *obj) 2691 { 2692 rv64i_bare_cpu_init(obj); 2693 2694 RVA22U64.enabled = true; 2695 } 2696 2697 static void rva22s64_profile_cpu_init(Object *obj) 2698 { 2699 rv64i_bare_cpu_init(obj); 2700 2701 RVA22S64.enabled = true; 2702 } 2703 #endif 2704 2705 static const gchar *riscv_gdb_arch_name(CPUState *cs) 2706 { 2707 RISCVCPU *cpu = RISCV_CPU(cs); 2708 CPURISCVState *env = &cpu->env; 2709 2710 switch (riscv_cpu_mxl(env)) { 2711 case MXL_RV32: 2712 return "riscv:rv32"; 2713 case MXL_RV64: 2714 case MXL_RV128: 2715 return "riscv:rv64"; 2716 default: 2717 g_assert_not_reached(); 2718 } 2719 } 2720 2721 #ifndef CONFIG_USER_ONLY 2722 static int64_t riscv_get_arch_id(CPUState *cs) 2723 { 2724 RISCVCPU *cpu = RISCV_CPU(cs); 2725 2726 return cpu->env.mhartid; 2727 } 2728 2729 #include "hw/core/sysemu-cpu-ops.h" 2730 2731 static const struct SysemuCPUOps riscv_sysemu_ops = { 2732 .get_phys_page_debug = riscv_cpu_get_phys_page_debug, 2733 .write_elf64_note = riscv_cpu_write_elf64_note, 2734 .write_elf32_note = riscv_cpu_write_elf32_note, 2735 .legacy_vmsd = &vmstate_riscv_cpu, 2736 }; 2737 #endif 2738 2739 static void riscv_cpu_common_class_init(ObjectClass *c, void *data) 2740 { 2741 RISCVCPUClass *mcc = RISCV_CPU_CLASS(c); 2742 CPUClass *cc = CPU_CLASS(c); 2743 DeviceClass *dc = DEVICE_CLASS(c); 2744 ResettableClass *rc = RESETTABLE_CLASS(c); 2745 2746 device_class_set_parent_realize(dc, riscv_cpu_realize, 2747 &mcc->parent_realize); 2748 2749 resettable_class_set_parent_phases(rc, NULL, riscv_cpu_reset_hold, NULL, 2750 &mcc->parent_phases); 2751 2752 cc->class_by_name = riscv_cpu_class_by_name; 2753 cc->has_work = riscv_cpu_has_work; 2754 cc->mmu_index = riscv_cpu_mmu_index; 2755 cc->dump_state = riscv_cpu_dump_state; 2756 cc->set_pc = riscv_cpu_set_pc; 2757 cc->get_pc = riscv_cpu_get_pc; 2758 cc->gdb_read_register = riscv_cpu_gdb_read_register; 2759 cc->gdb_write_register = riscv_cpu_gdb_write_register; 2760 cc->gdb_stop_before_watchpoint = true; 2761 cc->disas_set_info = riscv_cpu_disas_set_info; 2762 #ifndef CONFIG_USER_ONLY 2763 cc->sysemu_ops = &riscv_sysemu_ops; 2764 cc->get_arch_id = riscv_get_arch_id; 2765 #endif 2766 cc->gdb_arch_name = riscv_gdb_arch_name; 2767 2768 device_class_set_props(dc, riscv_cpu_properties); 2769 } 2770 2771 static void riscv_cpu_class_init(ObjectClass *c, void *data) 2772 { 2773 RISCVCPUClass *mcc = RISCV_CPU_CLASS(c); 2774 2775 mcc->misa_mxl_max = (uint32_t)(uintptr_t)data; 2776 riscv_cpu_validate_misa_mxl(mcc); 2777 } 2778 2779 static void riscv_isa_string_ext(RISCVCPU *cpu, char **isa_str, 2780 int max_str_len) 2781 { 2782 const RISCVIsaExtData *edata; 2783 char *old = *isa_str; 2784 char *new = *isa_str; 2785 2786 for (edata = isa_edata_arr; edata && edata->name; edata++) { 2787 if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) { 2788 new = g_strconcat(old, "_", edata->name, NULL); 2789 g_free(old); 2790 old = new; 2791 } 2792 } 2793 2794 *isa_str = new; 2795 } 2796 2797 char *riscv_isa_string(RISCVCPU *cpu) 2798 { 2799 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); 2800 int i; 2801 const size_t maxlen = sizeof("rv128") + sizeof(riscv_single_letter_exts); 2802 char *isa_str = g_new(char, maxlen); 2803 int xlen = riscv_cpu_max_xlen(mcc); 2804 char *p = isa_str + snprintf(isa_str, maxlen, "rv%d", xlen); 2805 2806 for (i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) { 2807 if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) { 2808 *p++ = qemu_tolower(riscv_single_letter_exts[i]); 2809 } 2810 } 2811 *p = '\0'; 2812 if (!cpu->cfg.short_isa_string) { 2813 riscv_isa_string_ext(cpu, &isa_str, maxlen); 2814 } 2815 return isa_str; 2816 } 2817 2818 #ifndef CONFIG_USER_ONLY 2819 static char **riscv_isa_extensions_list(RISCVCPU *cpu, int *count) 2820 { 2821 int maxlen = ARRAY_SIZE(riscv_single_letter_exts) + ARRAY_SIZE(isa_edata_arr); 2822 char **extensions = g_new(char *, maxlen); 2823 2824 for (int i = 0; i < sizeof(riscv_single_letter_exts) - 1; i++) { 2825 if (cpu->env.misa_ext & RV(riscv_single_letter_exts[i])) { 2826 extensions[*count] = g_new(char, 2); 2827 snprintf(extensions[*count], 2, "%c", 2828 qemu_tolower(riscv_single_letter_exts[i])); 2829 (*count)++; 2830 } 2831 } 2832 2833 for (const RISCVIsaExtData *edata = isa_edata_arr; edata->name; edata++) { 2834 if (isa_ext_is_enabled(cpu, edata->ext_enable_offset)) { 2835 extensions[*count] = g_strdup(edata->name); 2836 (*count)++; 2837 } 2838 } 2839 2840 return extensions; 2841 } 2842 2843 void riscv_isa_write_fdt(RISCVCPU *cpu, void *fdt, char *nodename) 2844 { 2845 RISCVCPUClass *mcc = RISCV_CPU_GET_CLASS(cpu); 2846 const size_t maxlen = sizeof("rv128i"); 2847 g_autofree char *isa_base = g_new(char, maxlen); 2848 g_autofree char *riscv_isa; 2849 char **isa_extensions; 2850 int count = 0; 2851 int xlen = riscv_cpu_max_xlen(mcc); 2852 2853 riscv_isa = riscv_isa_string(cpu); 2854 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", riscv_isa); 2855 2856 snprintf(isa_base, maxlen, "rv%di", xlen); 2857 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa-base", isa_base); 2858 2859 isa_extensions = riscv_isa_extensions_list(cpu, &count); 2860 qemu_fdt_setprop_string_array(fdt, nodename, "riscv,isa-extensions", 2861 isa_extensions, count); 2862 2863 for (int i = 0; i < count; i++) { 2864 g_free(isa_extensions[i]); 2865 } 2866 2867 g_free(isa_extensions); 2868 } 2869 #endif 2870 2871 #define DEFINE_CPU(type_name, misa_mxl_max, initfn) \ 2872 { \ 2873 .name = (type_name), \ 2874 .parent = TYPE_RISCV_CPU, \ 2875 .instance_init = (initfn), \ 2876 .class_init = riscv_cpu_class_init, \ 2877 .class_data = (void *)(misa_mxl_max) \ 2878 } 2879 2880 #define DEFINE_DYNAMIC_CPU(type_name, misa_mxl_max, initfn) \ 2881 { \ 2882 .name = (type_name), \ 2883 .parent = TYPE_RISCV_DYNAMIC_CPU, \ 2884 .instance_init = (initfn), \ 2885 .class_init = riscv_cpu_class_init, \ 2886 .class_data = (void *)(misa_mxl_max) \ 2887 } 2888 2889 #define DEFINE_VENDOR_CPU(type_name, misa_mxl_max, initfn) \ 2890 { \ 2891 .name = (type_name), \ 2892 .parent = TYPE_RISCV_VENDOR_CPU, \ 2893 .instance_init = (initfn), \ 2894 .class_init = riscv_cpu_class_init, \ 2895 .class_data = (void *)(misa_mxl_max) \ 2896 } 2897 2898 #define DEFINE_BARE_CPU(type_name, misa_mxl_max, initfn) \ 2899 { \ 2900 .name = (type_name), \ 2901 .parent = TYPE_RISCV_BARE_CPU, \ 2902 .instance_init = (initfn), \ 2903 .class_init = riscv_cpu_class_init, \ 2904 .class_data = (void *)(misa_mxl_max) \ 2905 } 2906 2907 #define DEFINE_PROFILE_CPU(type_name, misa_mxl_max, initfn) \ 2908 { \ 2909 .name = (type_name), \ 2910 .parent = TYPE_RISCV_BARE_CPU, \ 2911 .instance_init = (initfn), \ 2912 .class_init = riscv_cpu_class_init, \ 2913 .class_data = (void *)(misa_mxl_max) \ 2914 } 2915 2916 static const TypeInfo riscv_cpu_type_infos[] = { 2917 { 2918 .name = TYPE_RISCV_CPU, 2919 .parent = TYPE_CPU, 2920 .instance_size = sizeof(RISCVCPU), 2921 .instance_align = __alignof(RISCVCPU), 2922 .instance_init = riscv_cpu_init, 2923 .instance_post_init = riscv_cpu_post_init, 2924 .abstract = true, 2925 .class_size = sizeof(RISCVCPUClass), 2926 .class_init = riscv_cpu_common_class_init, 2927 }, 2928 { 2929 .name = TYPE_RISCV_DYNAMIC_CPU, 2930 .parent = TYPE_RISCV_CPU, 2931 .abstract = true, 2932 }, 2933 { 2934 .name = TYPE_RISCV_VENDOR_CPU, 2935 .parent = TYPE_RISCV_CPU, 2936 .abstract = true, 2937 }, 2938 { 2939 .name = TYPE_RISCV_BARE_CPU, 2940 .parent = TYPE_RISCV_CPU, 2941 .instance_init = riscv_bare_cpu_init, 2942 .abstract = true, 2943 }, 2944 #if defined(TARGET_RISCV32) 2945 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_ANY, MXL_RV32, riscv_any_cpu_init), 2946 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX, MXL_RV32, riscv_max_cpu_init), 2947 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE32, MXL_RV32, rv32_base_cpu_init), 2948 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_IBEX, MXL_RV32, rv32_ibex_cpu_init), 2949 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E31, MXL_RV32, rv32_sifive_e_cpu_init), 2950 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E34, MXL_RV32, rv32_imafcu_nommu_cpu_init), 2951 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U34, MXL_RV32, rv32_sifive_u_cpu_init), 2952 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV32I, MXL_RV32, rv32i_bare_cpu_init), 2953 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV32E, MXL_RV32, rv32e_bare_cpu_init), 2954 #elif defined(TARGET_RISCV64) 2955 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_ANY, MXL_RV64, riscv_any_cpu_init), 2956 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_MAX, MXL_RV64, riscv_max_cpu_init), 2957 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE64, MXL_RV64, rv64_base_cpu_init), 2958 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_E51, MXL_RV64, rv64_sifive_e_cpu_init), 2959 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SIFIVE_U54, MXL_RV64, rv64_sifive_u_cpu_init), 2960 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_SHAKTI_C, MXL_RV64, rv64_sifive_u_cpu_init), 2961 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_THEAD_C906, MXL_RV64, rv64_thead_c906_cpu_init), 2962 DEFINE_VENDOR_CPU(TYPE_RISCV_CPU_VEYRON_V1, MXL_RV64, rv64_veyron_v1_cpu_init), 2963 #ifdef CONFIG_TCG 2964 DEFINE_DYNAMIC_CPU(TYPE_RISCV_CPU_BASE128, MXL_RV128, rv128_base_cpu_init), 2965 #endif /* CONFIG_TCG */ 2966 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV64I, MXL_RV64, rv64i_bare_cpu_init), 2967 DEFINE_BARE_CPU(TYPE_RISCV_CPU_RV64E, MXL_RV64, rv64e_bare_cpu_init), 2968 DEFINE_PROFILE_CPU(TYPE_RISCV_CPU_RVA22U64, MXL_RV64, rva22u64_profile_cpu_init), 2969 DEFINE_PROFILE_CPU(TYPE_RISCV_CPU_RVA22S64, MXL_RV64, rva22s64_profile_cpu_init), 2970 #endif /* TARGET_RISCV64 */ 2971 }; 2972 2973 DEFINE_TYPES(riscv_cpu_type_infos) 2974