1 /* 2 * RISC-V Control and Status Registers. 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/log.h" 22 #include "cpu.h" 23 #include "qemu/main-loop.h" 24 #include "exec/exec-all.h" 25 26 /* CSR function table public API */ 27 void riscv_get_csr_ops(int csrno, riscv_csr_operations *ops) 28 { 29 *ops = csr_ops[csrno & (CSR_TABLE_SIZE - 1)]; 30 } 31 32 void riscv_set_csr_ops(int csrno, riscv_csr_operations *ops) 33 { 34 csr_ops[csrno & (CSR_TABLE_SIZE - 1)] = *ops; 35 } 36 37 /* Predicates */ 38 static RISCVException fs(CPURISCVState *env, int csrno) 39 { 40 #if !defined(CONFIG_USER_ONLY) 41 /* loose check condition for fcsr in vector extension */ 42 if ((csrno == CSR_FCSR) && (env->misa & RVV)) { 43 return RISCV_EXCP_NONE; 44 } 45 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 46 return RISCV_EXCP_ILLEGAL_INST; 47 } 48 #endif 49 return RISCV_EXCP_NONE; 50 } 51 52 static RISCVException vs(CPURISCVState *env, int csrno) 53 { 54 if (env->misa & RVV) { 55 return RISCV_EXCP_NONE; 56 } 57 return RISCV_EXCP_ILLEGAL_INST; 58 } 59 60 static RISCVException ctr(CPURISCVState *env, int csrno) 61 { 62 #if !defined(CONFIG_USER_ONLY) 63 CPUState *cs = env_cpu(env); 64 RISCVCPU *cpu = RISCV_CPU(cs); 65 66 if (!cpu->cfg.ext_counters) { 67 /* The Counters extensions is not enabled */ 68 return RISCV_EXCP_ILLEGAL_INST; 69 } 70 71 if (riscv_cpu_virt_enabled(env)) { 72 switch (csrno) { 73 case CSR_CYCLE: 74 if (!get_field(env->hcounteren, HCOUNTEREN_CY) && 75 get_field(env->mcounteren, HCOUNTEREN_CY)) { 76 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 77 } 78 break; 79 case CSR_TIME: 80 if (!get_field(env->hcounteren, HCOUNTEREN_TM) && 81 get_field(env->mcounteren, HCOUNTEREN_TM)) { 82 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 83 } 84 break; 85 case CSR_INSTRET: 86 if (!get_field(env->hcounteren, HCOUNTEREN_IR) && 87 get_field(env->mcounteren, HCOUNTEREN_IR)) { 88 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 89 } 90 break; 91 case CSR_HPMCOUNTER3...CSR_HPMCOUNTER31: 92 if (!get_field(env->hcounteren, 1 << (csrno - CSR_HPMCOUNTER3)) && 93 get_field(env->mcounteren, 1 << (csrno - CSR_HPMCOUNTER3))) { 94 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 95 } 96 break; 97 } 98 if (riscv_cpu_is_32bit(env)) { 99 switch (csrno) { 100 case CSR_CYCLEH: 101 if (!get_field(env->hcounteren, HCOUNTEREN_CY) && 102 get_field(env->mcounteren, HCOUNTEREN_CY)) { 103 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 104 } 105 break; 106 case CSR_TIMEH: 107 if (!get_field(env->hcounteren, HCOUNTEREN_TM) && 108 get_field(env->mcounteren, HCOUNTEREN_TM)) { 109 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 110 } 111 break; 112 case CSR_INSTRETH: 113 if (!get_field(env->hcounteren, HCOUNTEREN_IR) && 114 get_field(env->mcounteren, HCOUNTEREN_IR)) { 115 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 116 } 117 break; 118 case CSR_HPMCOUNTER3H...CSR_HPMCOUNTER31H: 119 if (!get_field(env->hcounteren, 1 << (csrno - CSR_HPMCOUNTER3H)) && 120 get_field(env->mcounteren, 1 << (csrno - CSR_HPMCOUNTER3H))) { 121 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 122 } 123 break; 124 } 125 } 126 } 127 #endif 128 return RISCV_EXCP_NONE; 129 } 130 131 static RISCVException ctr32(CPURISCVState *env, int csrno) 132 { 133 if (!riscv_cpu_is_32bit(env)) { 134 return RISCV_EXCP_ILLEGAL_INST; 135 } 136 137 return ctr(env, csrno); 138 } 139 140 #if !defined(CONFIG_USER_ONLY) 141 static RISCVException any(CPURISCVState *env, int csrno) 142 { 143 return RISCV_EXCP_NONE; 144 } 145 146 static RISCVException any32(CPURISCVState *env, int csrno) 147 { 148 if (!riscv_cpu_is_32bit(env)) { 149 return RISCV_EXCP_ILLEGAL_INST; 150 } 151 152 return any(env, csrno); 153 154 } 155 156 static RISCVException smode(CPURISCVState *env, int csrno) 157 { 158 if (riscv_has_ext(env, RVS)) { 159 return RISCV_EXCP_NONE; 160 } 161 162 return RISCV_EXCP_ILLEGAL_INST; 163 } 164 165 static RISCVException hmode(CPURISCVState *env, int csrno) 166 { 167 if (riscv_has_ext(env, RVS) && 168 riscv_has_ext(env, RVH)) { 169 /* Hypervisor extension is supported */ 170 if ((env->priv == PRV_S && !riscv_cpu_virt_enabled(env)) || 171 env->priv == PRV_M) { 172 return RISCV_EXCP_NONE; 173 } else { 174 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 175 } 176 } 177 178 return RISCV_EXCP_ILLEGAL_INST; 179 } 180 181 static RISCVException hmode32(CPURISCVState *env, int csrno) 182 { 183 if (!riscv_cpu_is_32bit(env)) { 184 if (riscv_cpu_virt_enabled(env)) { 185 return RISCV_EXCP_ILLEGAL_INST; 186 } else { 187 return RISCV_EXCP_VIRT_INSTRUCTION_FAULT; 188 } 189 } 190 191 return hmode(env, csrno); 192 193 } 194 195 static RISCVException pmp(CPURISCVState *env, int csrno) 196 { 197 if (riscv_feature(env, RISCV_FEATURE_PMP)) { 198 return RISCV_EXCP_NONE; 199 } 200 201 return RISCV_EXCP_ILLEGAL_INST; 202 } 203 #endif 204 205 /* User Floating-Point CSRs */ 206 static RISCVException read_fflags(CPURISCVState *env, int csrno, 207 target_ulong *val) 208 { 209 #if !defined(CONFIG_USER_ONLY) 210 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 211 return RISCV_EXCP_ILLEGAL_INST; 212 } 213 #endif 214 *val = riscv_cpu_get_fflags(env); 215 return RISCV_EXCP_NONE; 216 } 217 218 static RISCVException write_fflags(CPURISCVState *env, int csrno, 219 target_ulong val) 220 { 221 #if !defined(CONFIG_USER_ONLY) 222 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 223 return RISCV_EXCP_ILLEGAL_INST; 224 } 225 env->mstatus |= MSTATUS_FS; 226 #endif 227 riscv_cpu_set_fflags(env, val & (FSR_AEXC >> FSR_AEXC_SHIFT)); 228 return RISCV_EXCP_NONE; 229 } 230 231 static RISCVException read_frm(CPURISCVState *env, int csrno, 232 target_ulong *val) 233 { 234 #if !defined(CONFIG_USER_ONLY) 235 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 236 return RISCV_EXCP_ILLEGAL_INST; 237 } 238 #endif 239 *val = env->frm; 240 return RISCV_EXCP_NONE; 241 } 242 243 static RISCVException write_frm(CPURISCVState *env, int csrno, 244 target_ulong val) 245 { 246 #if !defined(CONFIG_USER_ONLY) 247 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 248 return RISCV_EXCP_ILLEGAL_INST; 249 } 250 env->mstatus |= MSTATUS_FS; 251 #endif 252 env->frm = val & (FSR_RD >> FSR_RD_SHIFT); 253 return RISCV_EXCP_NONE; 254 } 255 256 static RISCVException read_fcsr(CPURISCVState *env, int csrno, 257 target_ulong *val) 258 { 259 #if !defined(CONFIG_USER_ONLY) 260 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 261 return RISCV_EXCP_ILLEGAL_INST; 262 } 263 #endif 264 *val = (riscv_cpu_get_fflags(env) << FSR_AEXC_SHIFT) 265 | (env->frm << FSR_RD_SHIFT); 266 if (vs(env, csrno) >= 0) { 267 *val |= (env->vxrm << FSR_VXRM_SHIFT) 268 | (env->vxsat << FSR_VXSAT_SHIFT); 269 } 270 return RISCV_EXCP_NONE; 271 } 272 273 static RISCVException write_fcsr(CPURISCVState *env, int csrno, 274 target_ulong val) 275 { 276 #if !defined(CONFIG_USER_ONLY) 277 if (!env->debugger && !riscv_cpu_fp_enabled(env)) { 278 return RISCV_EXCP_ILLEGAL_INST; 279 } 280 env->mstatus |= MSTATUS_FS; 281 #endif 282 env->frm = (val & FSR_RD) >> FSR_RD_SHIFT; 283 if (vs(env, csrno) >= 0) { 284 env->vxrm = (val & FSR_VXRM) >> FSR_VXRM_SHIFT; 285 env->vxsat = (val & FSR_VXSAT) >> FSR_VXSAT_SHIFT; 286 } 287 riscv_cpu_set_fflags(env, (val & FSR_AEXC) >> FSR_AEXC_SHIFT); 288 return RISCV_EXCP_NONE; 289 } 290 291 static RISCVException read_vtype(CPURISCVState *env, int csrno, 292 target_ulong *val) 293 { 294 *val = env->vtype; 295 return RISCV_EXCP_NONE; 296 } 297 298 static RISCVException read_vl(CPURISCVState *env, int csrno, 299 target_ulong *val) 300 { 301 *val = env->vl; 302 return RISCV_EXCP_NONE; 303 } 304 305 static RISCVException read_vxrm(CPURISCVState *env, int csrno, 306 target_ulong *val) 307 { 308 *val = env->vxrm; 309 return RISCV_EXCP_NONE; 310 } 311 312 static RISCVException write_vxrm(CPURISCVState *env, int csrno, 313 target_ulong val) 314 { 315 env->vxrm = val; 316 return RISCV_EXCP_NONE; 317 } 318 319 static RISCVException read_vxsat(CPURISCVState *env, int csrno, 320 target_ulong *val) 321 { 322 *val = env->vxsat; 323 return RISCV_EXCP_NONE; 324 } 325 326 static RISCVException write_vxsat(CPURISCVState *env, int csrno, 327 target_ulong val) 328 { 329 env->vxsat = val; 330 return RISCV_EXCP_NONE; 331 } 332 333 static RISCVException read_vstart(CPURISCVState *env, int csrno, 334 target_ulong *val) 335 { 336 *val = env->vstart; 337 return RISCV_EXCP_NONE; 338 } 339 340 static RISCVException write_vstart(CPURISCVState *env, int csrno, 341 target_ulong val) 342 { 343 env->vstart = val; 344 return RISCV_EXCP_NONE; 345 } 346 347 /* User Timers and Counters */ 348 static RISCVException read_instret(CPURISCVState *env, int csrno, 349 target_ulong *val) 350 { 351 #if !defined(CONFIG_USER_ONLY) 352 if (icount_enabled()) { 353 *val = icount_get(); 354 } else { 355 *val = cpu_get_host_ticks(); 356 } 357 #else 358 *val = cpu_get_host_ticks(); 359 #endif 360 return RISCV_EXCP_NONE; 361 } 362 363 static RISCVException read_instreth(CPURISCVState *env, int csrno, 364 target_ulong *val) 365 { 366 #if !defined(CONFIG_USER_ONLY) 367 if (icount_enabled()) { 368 *val = icount_get() >> 32; 369 } else { 370 *val = cpu_get_host_ticks() >> 32; 371 } 372 #else 373 *val = cpu_get_host_ticks() >> 32; 374 #endif 375 return RISCV_EXCP_NONE; 376 } 377 378 #if defined(CONFIG_USER_ONLY) 379 static RISCVException read_time(CPURISCVState *env, int csrno, 380 target_ulong *val) 381 { 382 *val = cpu_get_host_ticks(); 383 return RISCV_EXCP_NONE; 384 } 385 386 static RISCVException read_timeh(CPURISCVState *env, int csrno, 387 target_ulong *val) 388 { 389 *val = cpu_get_host_ticks() >> 32; 390 return RISCV_EXCP_NONE; 391 } 392 393 #else /* CONFIG_USER_ONLY */ 394 395 static RISCVException read_time(CPURISCVState *env, int csrno, 396 target_ulong *val) 397 { 398 uint64_t delta = riscv_cpu_virt_enabled(env) ? env->htimedelta : 0; 399 400 if (!env->rdtime_fn) { 401 return RISCV_EXCP_ILLEGAL_INST; 402 } 403 404 *val = env->rdtime_fn(env->rdtime_fn_arg) + delta; 405 return RISCV_EXCP_NONE; 406 } 407 408 static RISCVException read_timeh(CPURISCVState *env, int csrno, 409 target_ulong *val) 410 { 411 uint64_t delta = riscv_cpu_virt_enabled(env) ? env->htimedelta : 0; 412 413 if (!env->rdtime_fn) { 414 return RISCV_EXCP_ILLEGAL_INST; 415 } 416 417 *val = (env->rdtime_fn(env->rdtime_fn_arg) + delta) >> 32; 418 return RISCV_EXCP_NONE; 419 } 420 421 /* Machine constants */ 422 423 #define M_MODE_INTERRUPTS (MIP_MSIP | MIP_MTIP | MIP_MEIP) 424 #define S_MODE_INTERRUPTS (MIP_SSIP | MIP_STIP | MIP_SEIP) 425 #define VS_MODE_INTERRUPTS (MIP_VSSIP | MIP_VSTIP | MIP_VSEIP) 426 427 static const target_ulong delegable_ints = S_MODE_INTERRUPTS | 428 VS_MODE_INTERRUPTS; 429 static const target_ulong all_ints = M_MODE_INTERRUPTS | S_MODE_INTERRUPTS | 430 VS_MODE_INTERRUPTS; 431 static const target_ulong delegable_excps = 432 (1ULL << (RISCV_EXCP_INST_ADDR_MIS)) | 433 (1ULL << (RISCV_EXCP_INST_ACCESS_FAULT)) | 434 (1ULL << (RISCV_EXCP_ILLEGAL_INST)) | 435 (1ULL << (RISCV_EXCP_BREAKPOINT)) | 436 (1ULL << (RISCV_EXCP_LOAD_ADDR_MIS)) | 437 (1ULL << (RISCV_EXCP_LOAD_ACCESS_FAULT)) | 438 (1ULL << (RISCV_EXCP_STORE_AMO_ADDR_MIS)) | 439 (1ULL << (RISCV_EXCP_STORE_AMO_ACCESS_FAULT)) | 440 (1ULL << (RISCV_EXCP_U_ECALL)) | 441 (1ULL << (RISCV_EXCP_S_ECALL)) | 442 (1ULL << (RISCV_EXCP_VS_ECALL)) | 443 (1ULL << (RISCV_EXCP_M_ECALL)) | 444 (1ULL << (RISCV_EXCP_INST_PAGE_FAULT)) | 445 (1ULL << (RISCV_EXCP_LOAD_PAGE_FAULT)) | 446 (1ULL << (RISCV_EXCP_STORE_PAGE_FAULT)) | 447 (1ULL << (RISCV_EXCP_INST_GUEST_PAGE_FAULT)) | 448 (1ULL << (RISCV_EXCP_LOAD_GUEST_ACCESS_FAULT)) | 449 (1ULL << (RISCV_EXCP_VIRT_INSTRUCTION_FAULT)) | 450 (1ULL << (RISCV_EXCP_STORE_GUEST_AMO_ACCESS_FAULT)); 451 static const target_ulong sstatus_v1_10_mask = SSTATUS_SIE | SSTATUS_SPIE | 452 SSTATUS_UIE | SSTATUS_UPIE | SSTATUS_SPP | SSTATUS_FS | SSTATUS_XS | 453 SSTATUS_SUM | SSTATUS_MXR | SSTATUS_SD; 454 static const target_ulong sip_writable_mask = SIP_SSIP | MIP_USIP | MIP_UEIP; 455 static const target_ulong hip_writable_mask = MIP_VSSIP; 456 static const target_ulong hvip_writable_mask = MIP_VSSIP | MIP_VSTIP | MIP_VSEIP; 457 static const target_ulong vsip_writable_mask = MIP_VSSIP; 458 459 static const char valid_vm_1_10_32[16] = { 460 [VM_1_10_MBARE] = 1, 461 [VM_1_10_SV32] = 1 462 }; 463 464 static const char valid_vm_1_10_64[16] = { 465 [VM_1_10_MBARE] = 1, 466 [VM_1_10_SV39] = 1, 467 [VM_1_10_SV48] = 1, 468 [VM_1_10_SV57] = 1 469 }; 470 471 /* Machine Information Registers */ 472 static RISCVException read_zero(CPURISCVState *env, int csrno, 473 target_ulong *val) 474 { 475 *val = 0; 476 return RISCV_EXCP_NONE; 477 } 478 479 static RISCVException read_mhartid(CPURISCVState *env, int csrno, 480 target_ulong *val) 481 { 482 *val = env->mhartid; 483 return RISCV_EXCP_NONE; 484 } 485 486 /* Machine Trap Setup */ 487 static RISCVException read_mstatus(CPURISCVState *env, int csrno, 488 target_ulong *val) 489 { 490 *val = env->mstatus; 491 return RISCV_EXCP_NONE; 492 } 493 494 static int validate_vm(CPURISCVState *env, target_ulong vm) 495 { 496 if (riscv_cpu_is_32bit(env)) { 497 return valid_vm_1_10_32[vm & 0xf]; 498 } else { 499 return valid_vm_1_10_64[vm & 0xf]; 500 } 501 } 502 503 static RISCVException write_mstatus(CPURISCVState *env, int csrno, 504 target_ulong val) 505 { 506 uint64_t mstatus = env->mstatus; 507 uint64_t mask = 0; 508 int dirty; 509 510 /* flush tlb on mstatus fields that affect VM */ 511 if ((val ^ mstatus) & (MSTATUS_MXR | MSTATUS_MPP | MSTATUS_MPV | 512 MSTATUS_MPRV | MSTATUS_SUM)) { 513 tlb_flush(env_cpu(env)); 514 } 515 mask = MSTATUS_SIE | MSTATUS_SPIE | MSTATUS_MIE | MSTATUS_MPIE | 516 MSTATUS_SPP | MSTATUS_FS | MSTATUS_MPRV | MSTATUS_SUM | 517 MSTATUS_MPP | MSTATUS_MXR | MSTATUS_TVM | MSTATUS_TSR | 518 MSTATUS_TW; 519 520 if (!riscv_cpu_is_32bit(env)) { 521 /* 522 * RV32: MPV and GVA are not in mstatus. The current plan is to 523 * add them to mstatush. For now, we just don't support it. 524 */ 525 mask |= MSTATUS_MPV | MSTATUS_GVA; 526 } 527 528 mstatus = (mstatus & ~mask) | (val & mask); 529 530 dirty = ((mstatus & MSTATUS_FS) == MSTATUS_FS) | 531 ((mstatus & MSTATUS_XS) == MSTATUS_XS); 532 mstatus = set_field(mstatus, MSTATUS_SD, dirty); 533 env->mstatus = mstatus; 534 535 return RISCV_EXCP_NONE; 536 } 537 538 static RISCVException read_mstatush(CPURISCVState *env, int csrno, 539 target_ulong *val) 540 { 541 *val = env->mstatus >> 32; 542 return RISCV_EXCP_NONE; 543 } 544 545 static RISCVException write_mstatush(CPURISCVState *env, int csrno, 546 target_ulong val) 547 { 548 uint64_t valh = (uint64_t)val << 32; 549 uint64_t mask = MSTATUS_MPV | MSTATUS_GVA; 550 551 if ((valh ^ env->mstatus) & (MSTATUS_MPV)) { 552 tlb_flush(env_cpu(env)); 553 } 554 555 env->mstatus = (env->mstatus & ~mask) | (valh & mask); 556 557 return RISCV_EXCP_NONE; 558 } 559 560 static RISCVException read_misa(CPURISCVState *env, int csrno, 561 target_ulong *val) 562 { 563 *val = env->misa; 564 return RISCV_EXCP_NONE; 565 } 566 567 static RISCVException write_misa(CPURISCVState *env, int csrno, 568 target_ulong val) 569 { 570 if (!riscv_feature(env, RISCV_FEATURE_MISA)) { 571 /* drop write to misa */ 572 return RISCV_EXCP_NONE; 573 } 574 575 /* 'I' or 'E' must be present */ 576 if (!(val & (RVI | RVE))) { 577 /* It is not, drop write to misa */ 578 return RISCV_EXCP_NONE; 579 } 580 581 /* 'E' excludes all other extensions */ 582 if (val & RVE) { 583 /* when we support 'E' we can do "val = RVE;" however 584 * for now we just drop writes if 'E' is present. 585 */ 586 return RISCV_EXCP_NONE; 587 } 588 589 /* Mask extensions that are not supported by this hart */ 590 val &= env->misa_mask; 591 592 /* Mask extensions that are not supported by QEMU */ 593 val &= (RVI | RVE | RVM | RVA | RVF | RVD | RVC | RVS | RVU); 594 595 /* 'D' depends on 'F', so clear 'D' if 'F' is not present */ 596 if ((val & RVD) && !(val & RVF)) { 597 val &= ~RVD; 598 } 599 600 /* Suppress 'C' if next instruction is not aligned 601 * TODO: this should check next_pc 602 */ 603 if ((val & RVC) && (GETPC() & ~3) != 0) { 604 val &= ~RVC; 605 } 606 607 /* misa.MXL writes are not supported by QEMU */ 608 val = (env->misa & MISA_MXL) | (val & ~MISA_MXL); 609 610 /* flush translation cache */ 611 if (val != env->misa) { 612 tb_flush(env_cpu(env)); 613 } 614 615 env->misa = val; 616 617 return RISCV_EXCP_NONE; 618 } 619 620 static RISCVException read_medeleg(CPURISCVState *env, int csrno, 621 target_ulong *val) 622 { 623 *val = env->medeleg; 624 return RISCV_EXCP_NONE; 625 } 626 627 static RISCVException write_medeleg(CPURISCVState *env, int csrno, 628 target_ulong val) 629 { 630 env->medeleg = (env->medeleg & ~delegable_excps) | (val & delegable_excps); 631 return RISCV_EXCP_NONE; 632 } 633 634 static RISCVException read_mideleg(CPURISCVState *env, int csrno, 635 target_ulong *val) 636 { 637 *val = env->mideleg; 638 return RISCV_EXCP_NONE; 639 } 640 641 static RISCVException write_mideleg(CPURISCVState *env, int csrno, 642 target_ulong val) 643 { 644 env->mideleg = (env->mideleg & ~delegable_ints) | (val & delegable_ints); 645 if (riscv_has_ext(env, RVH)) { 646 env->mideleg |= VS_MODE_INTERRUPTS; 647 } 648 return RISCV_EXCP_NONE; 649 } 650 651 static RISCVException read_mie(CPURISCVState *env, int csrno, 652 target_ulong *val) 653 { 654 *val = env->mie; 655 return RISCV_EXCP_NONE; 656 } 657 658 static RISCVException write_mie(CPURISCVState *env, int csrno, 659 target_ulong val) 660 { 661 env->mie = (env->mie & ~all_ints) | (val & all_ints); 662 return RISCV_EXCP_NONE; 663 } 664 665 static RISCVException read_mtvec(CPURISCVState *env, int csrno, 666 target_ulong *val) 667 { 668 *val = env->mtvec; 669 return RISCV_EXCP_NONE; 670 } 671 672 static RISCVException write_mtvec(CPURISCVState *env, int csrno, 673 target_ulong val) 674 { 675 /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */ 676 if ((val & 3) < 2) { 677 env->mtvec = val; 678 } else { 679 qemu_log_mask(LOG_UNIMP, "CSR_MTVEC: reserved mode not supported\n"); 680 } 681 return RISCV_EXCP_NONE; 682 } 683 684 static RISCVException read_mcounteren(CPURISCVState *env, int csrno, 685 target_ulong *val) 686 { 687 *val = env->mcounteren; 688 return RISCV_EXCP_NONE; 689 } 690 691 static RISCVException write_mcounteren(CPURISCVState *env, int csrno, 692 target_ulong val) 693 { 694 env->mcounteren = val; 695 return RISCV_EXCP_NONE; 696 } 697 698 /* Machine Trap Handling */ 699 static RISCVException read_mscratch(CPURISCVState *env, int csrno, 700 target_ulong *val) 701 { 702 *val = env->mscratch; 703 return RISCV_EXCP_NONE; 704 } 705 706 static RISCVException write_mscratch(CPURISCVState *env, int csrno, 707 target_ulong val) 708 { 709 env->mscratch = val; 710 return RISCV_EXCP_NONE; 711 } 712 713 static RISCVException read_mepc(CPURISCVState *env, int csrno, 714 target_ulong *val) 715 { 716 *val = env->mepc; 717 return RISCV_EXCP_NONE; 718 } 719 720 static RISCVException write_mepc(CPURISCVState *env, int csrno, 721 target_ulong val) 722 { 723 env->mepc = val; 724 return RISCV_EXCP_NONE; 725 } 726 727 static RISCVException read_mcause(CPURISCVState *env, int csrno, 728 target_ulong *val) 729 { 730 *val = env->mcause; 731 return RISCV_EXCP_NONE; 732 } 733 734 static RISCVException write_mcause(CPURISCVState *env, int csrno, 735 target_ulong val) 736 { 737 env->mcause = val; 738 return RISCV_EXCP_NONE; 739 } 740 741 static RISCVException read_mtval(CPURISCVState *env, int csrno, 742 target_ulong *val) 743 { 744 *val = env->mtval; 745 return RISCV_EXCP_NONE; 746 } 747 748 static RISCVException write_mtval(CPURISCVState *env, int csrno, 749 target_ulong val) 750 { 751 env->mtval = val; 752 return RISCV_EXCP_NONE; 753 } 754 755 static RISCVException rmw_mip(CPURISCVState *env, int csrno, 756 target_ulong *ret_value, 757 target_ulong new_value, target_ulong write_mask) 758 { 759 RISCVCPU *cpu = env_archcpu(env); 760 /* Allow software control of delegable interrupts not claimed by hardware */ 761 target_ulong mask = write_mask & delegable_ints & ~env->miclaim; 762 uint32_t old_mip; 763 764 if (mask) { 765 old_mip = riscv_cpu_update_mip(cpu, mask, (new_value & mask)); 766 } else { 767 old_mip = env->mip; 768 } 769 770 if (ret_value) { 771 *ret_value = old_mip; 772 } 773 774 return RISCV_EXCP_NONE; 775 } 776 777 /* Supervisor Trap Setup */ 778 static RISCVException read_sstatus(CPURISCVState *env, int csrno, 779 target_ulong *val) 780 { 781 target_ulong mask = (sstatus_v1_10_mask); 782 *val = env->mstatus & mask; 783 return RISCV_EXCP_NONE; 784 } 785 786 static RISCVException write_sstatus(CPURISCVState *env, int csrno, 787 target_ulong val) 788 { 789 target_ulong mask = (sstatus_v1_10_mask); 790 target_ulong newval = (env->mstatus & ~mask) | (val & mask); 791 return write_mstatus(env, CSR_MSTATUS, newval); 792 } 793 794 static RISCVException read_vsie(CPURISCVState *env, int csrno, 795 target_ulong *val) 796 { 797 /* Shift the VS bits to their S bit location in vsie */ 798 *val = (env->mie & env->hideleg & VS_MODE_INTERRUPTS) >> 1; 799 return RISCV_EXCP_NONE; 800 } 801 802 static RISCVException read_sie(CPURISCVState *env, int csrno, 803 target_ulong *val) 804 { 805 if (riscv_cpu_virt_enabled(env)) { 806 read_vsie(env, CSR_VSIE, val); 807 } else { 808 *val = env->mie & env->mideleg; 809 } 810 return RISCV_EXCP_NONE; 811 } 812 813 static RISCVException write_vsie(CPURISCVState *env, int csrno, 814 target_ulong val) 815 { 816 /* Shift the S bits to their VS bit location in mie */ 817 target_ulong newval = (env->mie & ~VS_MODE_INTERRUPTS) | 818 ((val << 1) & env->hideleg & VS_MODE_INTERRUPTS); 819 return write_mie(env, CSR_MIE, newval); 820 } 821 822 static int write_sie(CPURISCVState *env, int csrno, target_ulong val) 823 { 824 if (riscv_cpu_virt_enabled(env)) { 825 write_vsie(env, CSR_VSIE, val); 826 } else { 827 target_ulong newval = (env->mie & ~S_MODE_INTERRUPTS) | 828 (val & S_MODE_INTERRUPTS); 829 write_mie(env, CSR_MIE, newval); 830 } 831 832 return RISCV_EXCP_NONE; 833 } 834 835 static RISCVException read_stvec(CPURISCVState *env, int csrno, 836 target_ulong *val) 837 { 838 *val = env->stvec; 839 return RISCV_EXCP_NONE; 840 } 841 842 static RISCVException write_stvec(CPURISCVState *env, int csrno, 843 target_ulong val) 844 { 845 /* bits [1:0] encode mode; 0 = direct, 1 = vectored, 2 >= reserved */ 846 if ((val & 3) < 2) { 847 env->stvec = val; 848 } else { 849 qemu_log_mask(LOG_UNIMP, "CSR_STVEC: reserved mode not supported\n"); 850 } 851 return RISCV_EXCP_NONE; 852 } 853 854 static RISCVException read_scounteren(CPURISCVState *env, int csrno, 855 target_ulong *val) 856 { 857 *val = env->scounteren; 858 return RISCV_EXCP_NONE; 859 } 860 861 static RISCVException write_scounteren(CPURISCVState *env, int csrno, 862 target_ulong val) 863 { 864 env->scounteren = val; 865 return RISCV_EXCP_NONE; 866 } 867 868 /* Supervisor Trap Handling */ 869 static RISCVException read_sscratch(CPURISCVState *env, int csrno, 870 target_ulong *val) 871 { 872 *val = env->sscratch; 873 return RISCV_EXCP_NONE; 874 } 875 876 static RISCVException write_sscratch(CPURISCVState *env, int csrno, 877 target_ulong val) 878 { 879 env->sscratch = val; 880 return RISCV_EXCP_NONE; 881 } 882 883 static RISCVException read_sepc(CPURISCVState *env, int csrno, 884 target_ulong *val) 885 { 886 *val = env->sepc; 887 return RISCV_EXCP_NONE; 888 } 889 890 static RISCVException write_sepc(CPURISCVState *env, int csrno, 891 target_ulong val) 892 { 893 env->sepc = val; 894 return RISCV_EXCP_NONE; 895 } 896 897 static RISCVException read_scause(CPURISCVState *env, int csrno, 898 target_ulong *val) 899 { 900 *val = env->scause; 901 return RISCV_EXCP_NONE; 902 } 903 904 static RISCVException write_scause(CPURISCVState *env, int csrno, 905 target_ulong val) 906 { 907 env->scause = val; 908 return RISCV_EXCP_NONE; 909 } 910 911 static RISCVException read_stval(CPURISCVState *env, int csrno, 912 target_ulong *val) 913 { 914 *val = env->stval; 915 return RISCV_EXCP_NONE; 916 } 917 918 static RISCVException write_stval(CPURISCVState *env, int csrno, 919 target_ulong val) 920 { 921 env->stval = val; 922 return RISCV_EXCP_NONE; 923 } 924 925 static RISCVException rmw_vsip(CPURISCVState *env, int csrno, 926 target_ulong *ret_value, 927 target_ulong new_value, target_ulong write_mask) 928 { 929 /* Shift the S bits to their VS bit location in mip */ 930 int ret = rmw_mip(env, 0, ret_value, new_value << 1, 931 (write_mask << 1) & vsip_writable_mask & env->hideleg); 932 *ret_value &= VS_MODE_INTERRUPTS; 933 /* Shift the VS bits to their S bit location in vsip */ 934 *ret_value >>= 1; 935 return ret; 936 } 937 938 static RISCVException rmw_sip(CPURISCVState *env, int csrno, 939 target_ulong *ret_value, 940 target_ulong new_value, target_ulong write_mask) 941 { 942 int ret; 943 944 if (riscv_cpu_virt_enabled(env)) { 945 ret = rmw_vsip(env, CSR_VSIP, ret_value, new_value, write_mask); 946 } else { 947 ret = rmw_mip(env, CSR_MSTATUS, ret_value, new_value, 948 write_mask & env->mideleg & sip_writable_mask); 949 } 950 951 *ret_value &= env->mideleg; 952 return ret; 953 } 954 955 /* Supervisor Protection and Translation */ 956 static RISCVException read_satp(CPURISCVState *env, int csrno, 957 target_ulong *val) 958 { 959 if (!riscv_feature(env, RISCV_FEATURE_MMU)) { 960 *val = 0; 961 return RISCV_EXCP_NONE; 962 } 963 964 if (env->priv == PRV_S && get_field(env->mstatus, MSTATUS_TVM)) { 965 return RISCV_EXCP_ILLEGAL_INST; 966 } else { 967 *val = env->satp; 968 } 969 970 return RISCV_EXCP_NONE; 971 } 972 973 static RISCVException write_satp(CPURISCVState *env, int csrno, 974 target_ulong val) 975 { 976 if (!riscv_feature(env, RISCV_FEATURE_MMU)) { 977 return RISCV_EXCP_NONE; 978 } 979 if (validate_vm(env, get_field(val, SATP_MODE)) && 980 ((val ^ env->satp) & (SATP_MODE | SATP_ASID | SATP_PPN))) 981 { 982 if (env->priv == PRV_S && get_field(env->mstatus, MSTATUS_TVM)) { 983 return RISCV_EXCP_ILLEGAL_INST; 984 } else { 985 if ((val ^ env->satp) & SATP_ASID) { 986 tlb_flush(env_cpu(env)); 987 } 988 env->satp = val; 989 } 990 } 991 return RISCV_EXCP_NONE; 992 } 993 994 /* Hypervisor Extensions */ 995 static RISCVException read_hstatus(CPURISCVState *env, int csrno, 996 target_ulong *val) 997 { 998 *val = env->hstatus; 999 if (!riscv_cpu_is_32bit(env)) { 1000 /* We only support 64-bit VSXL */ 1001 *val = set_field(*val, HSTATUS_VSXL, 2); 1002 } 1003 /* We only support little endian */ 1004 *val = set_field(*val, HSTATUS_VSBE, 0); 1005 return RISCV_EXCP_NONE; 1006 } 1007 1008 static RISCVException write_hstatus(CPURISCVState *env, int csrno, 1009 target_ulong val) 1010 { 1011 env->hstatus = val; 1012 if (!riscv_cpu_is_32bit(env) && get_field(val, HSTATUS_VSXL) != 2) { 1013 qemu_log_mask(LOG_UNIMP, "QEMU does not support mixed HSXLEN options."); 1014 } 1015 if (get_field(val, HSTATUS_VSBE) != 0) { 1016 qemu_log_mask(LOG_UNIMP, "QEMU does not support big endian guests."); 1017 } 1018 return RISCV_EXCP_NONE; 1019 } 1020 1021 static RISCVException read_hedeleg(CPURISCVState *env, int csrno, 1022 target_ulong *val) 1023 { 1024 *val = env->hedeleg; 1025 return RISCV_EXCP_NONE; 1026 } 1027 1028 static RISCVException write_hedeleg(CPURISCVState *env, int csrno, 1029 target_ulong val) 1030 { 1031 env->hedeleg = val; 1032 return RISCV_EXCP_NONE; 1033 } 1034 1035 static RISCVException read_hideleg(CPURISCVState *env, int csrno, 1036 target_ulong *val) 1037 { 1038 *val = env->hideleg; 1039 return RISCV_EXCP_NONE; 1040 } 1041 1042 static RISCVException write_hideleg(CPURISCVState *env, int csrno, 1043 target_ulong val) 1044 { 1045 env->hideleg = val; 1046 return RISCV_EXCP_NONE; 1047 } 1048 1049 static RISCVException rmw_hvip(CPURISCVState *env, int csrno, 1050 target_ulong *ret_value, 1051 target_ulong new_value, target_ulong write_mask) 1052 { 1053 int ret = rmw_mip(env, 0, ret_value, new_value, 1054 write_mask & hvip_writable_mask); 1055 1056 *ret_value &= hvip_writable_mask; 1057 1058 return ret; 1059 } 1060 1061 static RISCVException rmw_hip(CPURISCVState *env, int csrno, 1062 target_ulong *ret_value, 1063 target_ulong new_value, target_ulong write_mask) 1064 { 1065 int ret = rmw_mip(env, 0, ret_value, new_value, 1066 write_mask & hip_writable_mask); 1067 1068 *ret_value &= hip_writable_mask; 1069 1070 return ret; 1071 } 1072 1073 static RISCVException read_hie(CPURISCVState *env, int csrno, 1074 target_ulong *val) 1075 { 1076 *val = env->mie & VS_MODE_INTERRUPTS; 1077 return RISCV_EXCP_NONE; 1078 } 1079 1080 static RISCVException write_hie(CPURISCVState *env, int csrno, 1081 target_ulong val) 1082 { 1083 target_ulong newval = (env->mie & ~VS_MODE_INTERRUPTS) | (val & VS_MODE_INTERRUPTS); 1084 return write_mie(env, CSR_MIE, newval); 1085 } 1086 1087 static RISCVException read_hcounteren(CPURISCVState *env, int csrno, 1088 target_ulong *val) 1089 { 1090 *val = env->hcounteren; 1091 return RISCV_EXCP_NONE; 1092 } 1093 1094 static RISCVException write_hcounteren(CPURISCVState *env, int csrno, 1095 target_ulong val) 1096 { 1097 env->hcounteren = val; 1098 return RISCV_EXCP_NONE; 1099 } 1100 1101 static RISCVException read_hgeie(CPURISCVState *env, int csrno, 1102 target_ulong *val) 1103 { 1104 qemu_log_mask(LOG_UNIMP, "No support for a non-zero GEILEN."); 1105 return RISCV_EXCP_NONE; 1106 } 1107 1108 static RISCVException write_hgeie(CPURISCVState *env, int csrno, 1109 target_ulong val) 1110 { 1111 qemu_log_mask(LOG_UNIMP, "No support for a non-zero GEILEN."); 1112 return RISCV_EXCP_NONE; 1113 } 1114 1115 static RISCVException read_htval(CPURISCVState *env, int csrno, 1116 target_ulong *val) 1117 { 1118 *val = env->htval; 1119 return RISCV_EXCP_NONE; 1120 } 1121 1122 static RISCVException write_htval(CPURISCVState *env, int csrno, 1123 target_ulong val) 1124 { 1125 env->htval = val; 1126 return RISCV_EXCP_NONE; 1127 } 1128 1129 static RISCVException read_htinst(CPURISCVState *env, int csrno, 1130 target_ulong *val) 1131 { 1132 *val = env->htinst; 1133 return RISCV_EXCP_NONE; 1134 } 1135 1136 static RISCVException write_htinst(CPURISCVState *env, int csrno, 1137 target_ulong val) 1138 { 1139 return RISCV_EXCP_NONE; 1140 } 1141 1142 static RISCVException read_hgeip(CPURISCVState *env, int csrno, 1143 target_ulong *val) 1144 { 1145 qemu_log_mask(LOG_UNIMP, "No support for a non-zero GEILEN."); 1146 return RISCV_EXCP_NONE; 1147 } 1148 1149 static RISCVException write_hgeip(CPURISCVState *env, int csrno, 1150 target_ulong val) 1151 { 1152 qemu_log_mask(LOG_UNIMP, "No support for a non-zero GEILEN."); 1153 return RISCV_EXCP_NONE; 1154 } 1155 1156 static RISCVException read_hgatp(CPURISCVState *env, int csrno, 1157 target_ulong *val) 1158 { 1159 *val = env->hgatp; 1160 return RISCV_EXCP_NONE; 1161 } 1162 1163 static RISCVException write_hgatp(CPURISCVState *env, int csrno, 1164 target_ulong val) 1165 { 1166 env->hgatp = val; 1167 return RISCV_EXCP_NONE; 1168 } 1169 1170 static RISCVException read_htimedelta(CPURISCVState *env, int csrno, 1171 target_ulong *val) 1172 { 1173 if (!env->rdtime_fn) { 1174 return RISCV_EXCP_ILLEGAL_INST; 1175 } 1176 1177 *val = env->htimedelta; 1178 return RISCV_EXCP_NONE; 1179 } 1180 1181 static RISCVException write_htimedelta(CPURISCVState *env, int csrno, 1182 target_ulong val) 1183 { 1184 if (!env->rdtime_fn) { 1185 return RISCV_EXCP_ILLEGAL_INST; 1186 } 1187 1188 if (riscv_cpu_is_32bit(env)) { 1189 env->htimedelta = deposit64(env->htimedelta, 0, 32, (uint64_t)val); 1190 } else { 1191 env->htimedelta = val; 1192 } 1193 return RISCV_EXCP_NONE; 1194 } 1195 1196 static RISCVException read_htimedeltah(CPURISCVState *env, int csrno, 1197 target_ulong *val) 1198 { 1199 if (!env->rdtime_fn) { 1200 return RISCV_EXCP_ILLEGAL_INST; 1201 } 1202 1203 *val = env->htimedelta >> 32; 1204 return RISCV_EXCP_NONE; 1205 } 1206 1207 static RISCVException write_htimedeltah(CPURISCVState *env, int csrno, 1208 target_ulong val) 1209 { 1210 if (!env->rdtime_fn) { 1211 return RISCV_EXCP_ILLEGAL_INST; 1212 } 1213 1214 env->htimedelta = deposit64(env->htimedelta, 32, 32, (uint64_t)val); 1215 return RISCV_EXCP_NONE; 1216 } 1217 1218 /* Virtual CSR Registers */ 1219 static RISCVException read_vsstatus(CPURISCVState *env, int csrno, 1220 target_ulong *val) 1221 { 1222 *val = env->vsstatus; 1223 return RISCV_EXCP_NONE; 1224 } 1225 1226 static RISCVException write_vsstatus(CPURISCVState *env, int csrno, 1227 target_ulong val) 1228 { 1229 uint64_t mask = (target_ulong)-1; 1230 env->vsstatus = (env->vsstatus & ~mask) | (uint64_t)val; 1231 return RISCV_EXCP_NONE; 1232 } 1233 1234 static int read_vstvec(CPURISCVState *env, int csrno, target_ulong *val) 1235 { 1236 *val = env->vstvec; 1237 return RISCV_EXCP_NONE; 1238 } 1239 1240 static RISCVException write_vstvec(CPURISCVState *env, int csrno, 1241 target_ulong val) 1242 { 1243 env->vstvec = val; 1244 return RISCV_EXCP_NONE; 1245 } 1246 1247 static RISCVException read_vsscratch(CPURISCVState *env, int csrno, 1248 target_ulong *val) 1249 { 1250 *val = env->vsscratch; 1251 return RISCV_EXCP_NONE; 1252 } 1253 1254 static RISCVException write_vsscratch(CPURISCVState *env, int csrno, 1255 target_ulong val) 1256 { 1257 env->vsscratch = val; 1258 return RISCV_EXCP_NONE; 1259 } 1260 1261 static RISCVException read_vsepc(CPURISCVState *env, int csrno, 1262 target_ulong *val) 1263 { 1264 *val = env->vsepc; 1265 return RISCV_EXCP_NONE; 1266 } 1267 1268 static RISCVException write_vsepc(CPURISCVState *env, int csrno, 1269 target_ulong val) 1270 { 1271 env->vsepc = val; 1272 return RISCV_EXCP_NONE; 1273 } 1274 1275 static RISCVException read_vscause(CPURISCVState *env, int csrno, 1276 target_ulong *val) 1277 { 1278 *val = env->vscause; 1279 return RISCV_EXCP_NONE; 1280 } 1281 1282 static RISCVException write_vscause(CPURISCVState *env, int csrno, 1283 target_ulong val) 1284 { 1285 env->vscause = val; 1286 return RISCV_EXCP_NONE; 1287 } 1288 1289 static RISCVException read_vstval(CPURISCVState *env, int csrno, 1290 target_ulong *val) 1291 { 1292 *val = env->vstval; 1293 return RISCV_EXCP_NONE; 1294 } 1295 1296 static RISCVException write_vstval(CPURISCVState *env, int csrno, 1297 target_ulong val) 1298 { 1299 env->vstval = val; 1300 return RISCV_EXCP_NONE; 1301 } 1302 1303 static RISCVException read_vsatp(CPURISCVState *env, int csrno, 1304 target_ulong *val) 1305 { 1306 *val = env->vsatp; 1307 return RISCV_EXCP_NONE; 1308 } 1309 1310 static RISCVException write_vsatp(CPURISCVState *env, int csrno, 1311 target_ulong val) 1312 { 1313 env->vsatp = val; 1314 return RISCV_EXCP_NONE; 1315 } 1316 1317 static RISCVException read_mtval2(CPURISCVState *env, int csrno, 1318 target_ulong *val) 1319 { 1320 *val = env->mtval2; 1321 return RISCV_EXCP_NONE; 1322 } 1323 1324 static RISCVException write_mtval2(CPURISCVState *env, int csrno, 1325 target_ulong val) 1326 { 1327 env->mtval2 = val; 1328 return RISCV_EXCP_NONE; 1329 } 1330 1331 static RISCVException read_mtinst(CPURISCVState *env, int csrno, 1332 target_ulong *val) 1333 { 1334 *val = env->mtinst; 1335 return RISCV_EXCP_NONE; 1336 } 1337 1338 static RISCVException write_mtinst(CPURISCVState *env, int csrno, 1339 target_ulong val) 1340 { 1341 env->mtinst = val; 1342 return RISCV_EXCP_NONE; 1343 } 1344 1345 /* Physical Memory Protection */ 1346 static RISCVException read_pmpcfg(CPURISCVState *env, int csrno, 1347 target_ulong *val) 1348 { 1349 *val = pmpcfg_csr_read(env, csrno - CSR_PMPCFG0); 1350 return RISCV_EXCP_NONE; 1351 } 1352 1353 static RISCVException write_pmpcfg(CPURISCVState *env, int csrno, 1354 target_ulong val) 1355 { 1356 pmpcfg_csr_write(env, csrno - CSR_PMPCFG0, val); 1357 return RISCV_EXCP_NONE; 1358 } 1359 1360 static RISCVException read_pmpaddr(CPURISCVState *env, int csrno, 1361 target_ulong *val) 1362 { 1363 *val = pmpaddr_csr_read(env, csrno - CSR_PMPADDR0); 1364 return RISCV_EXCP_NONE; 1365 } 1366 1367 static RISCVException write_pmpaddr(CPURISCVState *env, int csrno, 1368 target_ulong val) 1369 { 1370 pmpaddr_csr_write(env, csrno - CSR_PMPADDR0, val); 1371 return RISCV_EXCP_NONE; 1372 } 1373 1374 #endif 1375 1376 /* 1377 * riscv_csrrw - read and/or update control and status register 1378 * 1379 * csrr <-> riscv_csrrw(env, csrno, ret_value, 0, 0); 1380 * csrrw <-> riscv_csrrw(env, csrno, ret_value, value, -1); 1381 * csrrs <-> riscv_csrrw(env, csrno, ret_value, -1, value); 1382 * csrrc <-> riscv_csrrw(env, csrno, ret_value, 0, value); 1383 */ 1384 1385 int riscv_csrrw(CPURISCVState *env, int csrno, target_ulong *ret_value, 1386 target_ulong new_value, target_ulong write_mask) 1387 { 1388 int ret; 1389 target_ulong old_value; 1390 RISCVCPU *cpu = env_archcpu(env); 1391 1392 /* check privileges and return -1 if check fails */ 1393 #if !defined(CONFIG_USER_ONLY) 1394 int effective_priv = env->priv; 1395 int read_only = get_field(csrno, 0xC00) == 3; 1396 1397 if (riscv_has_ext(env, RVH) && 1398 env->priv == PRV_S && 1399 !riscv_cpu_virt_enabled(env)) { 1400 /* 1401 * We are in S mode without virtualisation, therefore we are in HS Mode. 1402 * Add 1 to the effective privledge level to allow us to access the 1403 * Hypervisor CSRs. 1404 */ 1405 effective_priv++; 1406 } 1407 1408 if ((write_mask && read_only) || 1409 (!env->debugger && (effective_priv < get_field(csrno, 0x300)))) { 1410 return -RISCV_EXCP_ILLEGAL_INST; 1411 } 1412 #endif 1413 1414 /* ensure the CSR extension is enabled. */ 1415 if (!cpu->cfg.ext_icsr) { 1416 return -RISCV_EXCP_ILLEGAL_INST; 1417 } 1418 1419 /* check predicate */ 1420 if (!csr_ops[csrno].predicate) { 1421 return -RISCV_EXCP_ILLEGAL_INST; 1422 } 1423 ret = csr_ops[csrno].predicate(env, csrno); 1424 if (ret != RISCV_EXCP_NONE) { 1425 return -ret; 1426 } 1427 1428 /* execute combined read/write operation if it exists */ 1429 if (csr_ops[csrno].op) { 1430 ret = csr_ops[csrno].op(env, csrno, ret_value, new_value, write_mask); 1431 if (ret != RISCV_EXCP_NONE) { 1432 return -ret; 1433 } 1434 return 0; 1435 } 1436 1437 /* if no accessor exists then return failure */ 1438 if (!csr_ops[csrno].read) { 1439 return -RISCV_EXCP_ILLEGAL_INST; 1440 } 1441 /* read old value */ 1442 ret = csr_ops[csrno].read(env, csrno, &old_value); 1443 if (ret != RISCV_EXCP_NONE) { 1444 return -ret; 1445 } 1446 1447 /* write value if writable and write mask set, otherwise drop writes */ 1448 if (write_mask) { 1449 new_value = (old_value & ~write_mask) | (new_value & write_mask); 1450 if (csr_ops[csrno].write) { 1451 ret = csr_ops[csrno].write(env, csrno, new_value); 1452 if (ret != RISCV_EXCP_NONE) { 1453 return -ret; 1454 } 1455 } 1456 } 1457 1458 /* return old value */ 1459 if (ret_value) { 1460 *ret_value = old_value; 1461 } 1462 1463 return 0; 1464 } 1465 1466 /* 1467 * Debugger support. If not in user mode, set env->debugger before the 1468 * riscv_csrrw call and clear it after the call. 1469 */ 1470 int riscv_csrrw_debug(CPURISCVState *env, int csrno, target_ulong *ret_value, 1471 target_ulong new_value, target_ulong write_mask) 1472 { 1473 int ret; 1474 #if !defined(CONFIG_USER_ONLY) 1475 env->debugger = true; 1476 #endif 1477 ret = riscv_csrrw(env, csrno, ret_value, new_value, write_mask); 1478 #if !defined(CONFIG_USER_ONLY) 1479 env->debugger = false; 1480 #endif 1481 return ret; 1482 } 1483 1484 /* Control and Status Register function table */ 1485 riscv_csr_operations csr_ops[CSR_TABLE_SIZE] = { 1486 /* User Floating-Point CSRs */ 1487 [CSR_FFLAGS] = { "fflags", fs, read_fflags, write_fflags }, 1488 [CSR_FRM] = { "frm", fs, read_frm, write_frm }, 1489 [CSR_FCSR] = { "fcsr", fs, read_fcsr, write_fcsr }, 1490 /* Vector CSRs */ 1491 [CSR_VSTART] = { "vstart", vs, read_vstart, write_vstart }, 1492 [CSR_VXSAT] = { "vxsat", vs, read_vxsat, write_vxsat }, 1493 [CSR_VXRM] = { "vxrm", vs, read_vxrm, write_vxrm }, 1494 [CSR_VL] = { "vl", vs, read_vl }, 1495 [CSR_VTYPE] = { "vtype", vs, read_vtype }, 1496 /* User Timers and Counters */ 1497 [CSR_CYCLE] = { "cycle", ctr, read_instret }, 1498 [CSR_INSTRET] = { "instret", ctr, read_instret }, 1499 [CSR_CYCLEH] = { "cycleh", ctr32, read_instreth }, 1500 [CSR_INSTRETH] = { "instreth", ctr32, read_instreth }, 1501 1502 /* 1503 * In privileged mode, the monitor will have to emulate TIME CSRs only if 1504 * rdtime callback is not provided by machine/platform emulation. 1505 */ 1506 [CSR_TIME] = { "time", ctr, read_time }, 1507 [CSR_TIMEH] = { "timeh", ctr32, read_timeh }, 1508 1509 #if !defined(CONFIG_USER_ONLY) 1510 /* Machine Timers and Counters */ 1511 [CSR_MCYCLE] = { "mcycle", any, read_instret }, 1512 [CSR_MINSTRET] = { "minstret", any, read_instret }, 1513 [CSR_MCYCLEH] = { "mcycleh", any32, read_instreth }, 1514 [CSR_MINSTRETH] = { "minstreth", any32, read_instreth }, 1515 1516 /* Machine Information Registers */ 1517 [CSR_MVENDORID] = { "mvendorid", any, read_zero }, 1518 [CSR_MARCHID] = { "marchid", any, read_zero }, 1519 [CSR_MIMPID] = { "mimpid", any, read_zero }, 1520 [CSR_MHARTID] = { "mhartid", any, read_mhartid }, 1521 1522 /* Machine Trap Setup */ 1523 [CSR_MSTATUS] = { "mstatus", any, read_mstatus, write_mstatus }, 1524 [CSR_MISA] = { "misa", any, read_misa, write_misa }, 1525 [CSR_MIDELEG] = { "mideleg", any, read_mideleg, write_mideleg }, 1526 [CSR_MEDELEG] = { "medeleg", any, read_medeleg, write_medeleg }, 1527 [CSR_MIE] = { "mie", any, read_mie, write_mie }, 1528 [CSR_MTVEC] = { "mtvec", any, read_mtvec, write_mtvec }, 1529 [CSR_MCOUNTEREN] = { "mcounteren", any, read_mcounteren, write_mcounteren }, 1530 1531 [CSR_MSTATUSH] = { "mstatush", any32, read_mstatush, write_mstatush }, 1532 1533 /* Machine Trap Handling */ 1534 [CSR_MSCRATCH] = { "mscratch", any, read_mscratch, write_mscratch }, 1535 [CSR_MEPC] = { "mepc", any, read_mepc, write_mepc }, 1536 [CSR_MCAUSE] = { "mcause", any, read_mcause, write_mcause }, 1537 [CSR_MTVAL] = { "mtval", any, read_mtval, write_mtval }, 1538 [CSR_MIP] = { "mip", any, NULL, NULL, rmw_mip }, 1539 1540 /* Supervisor Trap Setup */ 1541 [CSR_SSTATUS] = { "sstatus", smode, read_sstatus, write_sstatus }, 1542 [CSR_SIE] = { "sie", smode, read_sie, write_sie }, 1543 [CSR_STVEC] = { "stvec", smode, read_stvec, write_stvec }, 1544 [CSR_SCOUNTEREN] = { "scounteren", smode, read_scounteren, write_scounteren }, 1545 1546 /* Supervisor Trap Handling */ 1547 [CSR_SSCRATCH] = { "sscratch", smode, read_sscratch, write_sscratch }, 1548 [CSR_SEPC] = { "sepc", smode, read_sepc, write_sepc }, 1549 [CSR_SCAUSE] = { "scause", smode, read_scause, write_scause }, 1550 [CSR_STVAL] = { "stval", smode, read_stval, write_stval }, 1551 [CSR_SIP] = { "sip", smode, NULL, NULL, rmw_sip }, 1552 1553 /* Supervisor Protection and Translation */ 1554 [CSR_SATP] = { "satp", smode, read_satp, write_satp }, 1555 1556 [CSR_HSTATUS] = { "hstatus", hmode, read_hstatus, write_hstatus }, 1557 [CSR_HEDELEG] = { "hedeleg", hmode, read_hedeleg, write_hedeleg }, 1558 [CSR_HIDELEG] = { "hideleg", hmode, read_hideleg, write_hideleg }, 1559 [CSR_HVIP] = { "hvip", hmode, NULL, NULL, rmw_hvip }, 1560 [CSR_HIP] = { "hip", hmode, NULL, NULL, rmw_hip }, 1561 [CSR_HIE] = { "hie", hmode, read_hie, write_hie }, 1562 [CSR_HCOUNTEREN] = { "hcounteren", hmode, read_hcounteren, write_hcounteren }, 1563 [CSR_HGEIE] = { "hgeie", hmode, read_hgeie, write_hgeie }, 1564 [CSR_HTVAL] = { "htval", hmode, read_htval, write_htval }, 1565 [CSR_HTINST] = { "htinst", hmode, read_htinst, write_htinst }, 1566 [CSR_HGEIP] = { "hgeip", hmode, read_hgeip, write_hgeip }, 1567 [CSR_HGATP] = { "hgatp", hmode, read_hgatp, write_hgatp }, 1568 [CSR_HTIMEDELTA] = { "htimedelta", hmode, read_htimedelta, write_htimedelta }, 1569 [CSR_HTIMEDELTAH] = { "htimedeltah", hmode32, read_htimedeltah, write_htimedeltah }, 1570 1571 [CSR_VSSTATUS] = { "vsstatus", hmode, read_vsstatus, write_vsstatus }, 1572 [CSR_VSIP] = { "vsip", hmode, NULL, NULL, rmw_vsip }, 1573 [CSR_VSIE] = { "vsie", hmode, read_vsie, write_vsie }, 1574 [CSR_VSTVEC] = { "vstvec", hmode, read_vstvec, write_vstvec }, 1575 [CSR_VSSCRATCH] = { "vsscratch", hmode, read_vsscratch, write_vsscratch }, 1576 [CSR_VSEPC] = { "vsepc", hmode, read_vsepc, write_vsepc }, 1577 [CSR_VSCAUSE] = { "vscause", hmode, read_vscause, write_vscause }, 1578 [CSR_VSTVAL] = { "vstval", hmode, read_vstval, write_vstval }, 1579 [CSR_VSATP] = { "vsatp", hmode, read_vsatp, write_vsatp }, 1580 1581 [CSR_MTVAL2] = { "mtval2", hmode, read_mtval2, write_mtval2 }, 1582 [CSR_MTINST] = { "mtinst", hmode, read_mtinst, write_mtinst }, 1583 1584 /* Physical Memory Protection */ 1585 [CSR_PMPCFG0] = { "pmpcfg0", pmp, read_pmpcfg, write_pmpcfg }, 1586 [CSR_PMPCFG1] = { "pmpcfg1", pmp, read_pmpcfg, write_pmpcfg }, 1587 [CSR_PMPCFG2] = { "pmpcfg2", pmp, read_pmpcfg, write_pmpcfg }, 1588 [CSR_PMPCFG3] = { "pmpcfg3", pmp, read_pmpcfg, write_pmpcfg }, 1589 [CSR_PMPADDR0] = { "pmpaddr0", pmp, read_pmpaddr, write_pmpaddr }, 1590 [CSR_PMPADDR1] = { "pmpaddr1", pmp, read_pmpaddr, write_pmpaddr }, 1591 [CSR_PMPADDR2] = { "pmpaddr2", pmp, read_pmpaddr, write_pmpaddr }, 1592 [CSR_PMPADDR3] = { "pmpaddr3", pmp, read_pmpaddr, write_pmpaddr }, 1593 [CSR_PMPADDR4] = { "pmpaddr4", pmp, read_pmpaddr, write_pmpaddr }, 1594 [CSR_PMPADDR5] = { "pmpaddr5", pmp, read_pmpaddr, write_pmpaddr }, 1595 [CSR_PMPADDR6] = { "pmpaddr6", pmp, read_pmpaddr, write_pmpaddr }, 1596 [CSR_PMPADDR7] = { "pmpaddr7", pmp, read_pmpaddr, write_pmpaddr }, 1597 [CSR_PMPADDR8] = { "pmpaddr8", pmp, read_pmpaddr, write_pmpaddr }, 1598 [CSR_PMPADDR9] = { "pmpaddr9", pmp, read_pmpaddr, write_pmpaddr }, 1599 [CSR_PMPADDR10] = { "pmpaddr10", pmp, read_pmpaddr, write_pmpaddr }, 1600 [CSR_PMPADDR11] = { "pmpaddr11", pmp, read_pmpaddr, write_pmpaddr }, 1601 [CSR_PMPADDR12] = { "pmpaddr12", pmp, read_pmpaddr, write_pmpaddr }, 1602 [CSR_PMPADDR13] = { "pmpaddr13", pmp, read_pmpaddr, write_pmpaddr }, 1603 [CSR_PMPADDR14] = { "pmpaddr14", pmp, read_pmpaddr, write_pmpaddr }, 1604 [CSR_PMPADDR15] = { "pmpaddr15", pmp, read_pmpaddr, write_pmpaddr }, 1605 1606 /* Performance Counters */ 1607 [CSR_HPMCOUNTER3] = { "hpmcounter3", ctr, read_zero }, 1608 [CSR_HPMCOUNTER4] = { "hpmcounter4", ctr, read_zero }, 1609 [CSR_HPMCOUNTER5] = { "hpmcounter5", ctr, read_zero }, 1610 [CSR_HPMCOUNTER6] = { "hpmcounter6", ctr, read_zero }, 1611 [CSR_HPMCOUNTER7] = { "hpmcounter7", ctr, read_zero }, 1612 [CSR_HPMCOUNTER8] = { "hpmcounter8", ctr, read_zero }, 1613 [CSR_HPMCOUNTER9] = { "hpmcounter9", ctr, read_zero }, 1614 [CSR_HPMCOUNTER10] = { "hpmcounter10", ctr, read_zero }, 1615 [CSR_HPMCOUNTER11] = { "hpmcounter11", ctr, read_zero }, 1616 [CSR_HPMCOUNTER12] = { "hpmcounter12", ctr, read_zero }, 1617 [CSR_HPMCOUNTER13] = { "hpmcounter13", ctr, read_zero }, 1618 [CSR_HPMCOUNTER14] = { "hpmcounter14", ctr, read_zero }, 1619 [CSR_HPMCOUNTER15] = { "hpmcounter15", ctr, read_zero }, 1620 [CSR_HPMCOUNTER16] = { "hpmcounter16", ctr, read_zero }, 1621 [CSR_HPMCOUNTER17] = { "hpmcounter17", ctr, read_zero }, 1622 [CSR_HPMCOUNTER18] = { "hpmcounter18", ctr, read_zero }, 1623 [CSR_HPMCOUNTER19] = { "hpmcounter19", ctr, read_zero }, 1624 [CSR_HPMCOUNTER20] = { "hpmcounter20", ctr, read_zero }, 1625 [CSR_HPMCOUNTER21] = { "hpmcounter21", ctr, read_zero }, 1626 [CSR_HPMCOUNTER22] = { "hpmcounter22", ctr, read_zero }, 1627 [CSR_HPMCOUNTER23] = { "hpmcounter23", ctr, read_zero }, 1628 [CSR_HPMCOUNTER24] = { "hpmcounter24", ctr, read_zero }, 1629 [CSR_HPMCOUNTER25] = { "hpmcounter25", ctr, read_zero }, 1630 [CSR_HPMCOUNTER26] = { "hpmcounter26", ctr, read_zero }, 1631 [CSR_HPMCOUNTER27] = { "hpmcounter27", ctr, read_zero }, 1632 [CSR_HPMCOUNTER28] = { "hpmcounter28", ctr, read_zero }, 1633 [CSR_HPMCOUNTER29] = { "hpmcounter29", ctr, read_zero }, 1634 [CSR_HPMCOUNTER30] = { "hpmcounter30", ctr, read_zero }, 1635 [CSR_HPMCOUNTER31] = { "hpmcounter31", ctr, read_zero }, 1636 1637 [CSR_MHPMCOUNTER3] = { "mhpmcounter3", any, read_zero }, 1638 [CSR_MHPMCOUNTER4] = { "mhpmcounter4", any, read_zero }, 1639 [CSR_MHPMCOUNTER5] = { "mhpmcounter5", any, read_zero }, 1640 [CSR_MHPMCOUNTER6] = { "mhpmcounter6", any, read_zero }, 1641 [CSR_MHPMCOUNTER7] = { "mhpmcounter7", any, read_zero }, 1642 [CSR_MHPMCOUNTER8] = { "mhpmcounter8", any, read_zero }, 1643 [CSR_MHPMCOUNTER9] = { "mhpmcounter9", any, read_zero }, 1644 [CSR_MHPMCOUNTER10] = { "mhpmcounter10", any, read_zero }, 1645 [CSR_MHPMCOUNTER11] = { "mhpmcounter11", any, read_zero }, 1646 [CSR_MHPMCOUNTER12] = { "mhpmcounter12", any, read_zero }, 1647 [CSR_MHPMCOUNTER13] = { "mhpmcounter13", any, read_zero }, 1648 [CSR_MHPMCOUNTER14] = { "mhpmcounter14", any, read_zero }, 1649 [CSR_MHPMCOUNTER15] = { "mhpmcounter15", any, read_zero }, 1650 [CSR_MHPMCOUNTER16] = { "mhpmcounter16", any, read_zero }, 1651 [CSR_MHPMCOUNTER17] = { "mhpmcounter17", any, read_zero }, 1652 [CSR_MHPMCOUNTER18] = { "mhpmcounter18", any, read_zero }, 1653 [CSR_MHPMCOUNTER19] = { "mhpmcounter19", any, read_zero }, 1654 [CSR_MHPMCOUNTER20] = { "mhpmcounter20", any, read_zero }, 1655 [CSR_MHPMCOUNTER21] = { "mhpmcounter21", any, read_zero }, 1656 [CSR_MHPMCOUNTER22] = { "mhpmcounter22", any, read_zero }, 1657 [CSR_MHPMCOUNTER23] = { "mhpmcounter23", any, read_zero }, 1658 [CSR_MHPMCOUNTER24] = { "mhpmcounter24", any, read_zero }, 1659 [CSR_MHPMCOUNTER25] = { "mhpmcounter25", any, read_zero }, 1660 [CSR_MHPMCOUNTER26] = { "mhpmcounter26", any, read_zero }, 1661 [CSR_MHPMCOUNTER27] = { "mhpmcounter27", any, read_zero }, 1662 [CSR_MHPMCOUNTER28] = { "mhpmcounter28", any, read_zero }, 1663 [CSR_MHPMCOUNTER29] = { "mhpmcounter29", any, read_zero }, 1664 [CSR_MHPMCOUNTER30] = { "mhpmcounter30", any, read_zero }, 1665 [CSR_MHPMCOUNTER31] = { "mhpmcounter31", any, read_zero }, 1666 1667 [CSR_MHPMEVENT3] = { "mhpmevent3", any, read_zero }, 1668 [CSR_MHPMEVENT4] = { "mhpmevent4", any, read_zero }, 1669 [CSR_MHPMEVENT5] = { "mhpmevent5", any, read_zero }, 1670 [CSR_MHPMEVENT6] = { "mhpmevent6", any, read_zero }, 1671 [CSR_MHPMEVENT7] = { "mhpmevent7", any, read_zero }, 1672 [CSR_MHPMEVENT8] = { "mhpmevent8", any, read_zero }, 1673 [CSR_MHPMEVENT9] = { "mhpmevent9", any, read_zero }, 1674 [CSR_MHPMEVENT10] = { "mhpmevent10", any, read_zero }, 1675 [CSR_MHPMEVENT11] = { "mhpmevent11", any, read_zero }, 1676 [CSR_MHPMEVENT12] = { "mhpmevent12", any, read_zero }, 1677 [CSR_MHPMEVENT13] = { "mhpmevent13", any, read_zero }, 1678 [CSR_MHPMEVENT14] = { "mhpmevent14", any, read_zero }, 1679 [CSR_MHPMEVENT15] = { "mhpmevent15", any, read_zero }, 1680 [CSR_MHPMEVENT16] = { "mhpmevent16", any, read_zero }, 1681 [CSR_MHPMEVENT17] = { "mhpmevent17", any, read_zero }, 1682 [CSR_MHPMEVENT18] = { "mhpmevent18", any, read_zero }, 1683 [CSR_MHPMEVENT19] = { "mhpmevent19", any, read_zero }, 1684 [CSR_MHPMEVENT20] = { "mhpmevent20", any, read_zero }, 1685 [CSR_MHPMEVENT21] = { "mhpmevent21", any, read_zero }, 1686 [CSR_MHPMEVENT22] = { "mhpmevent22", any, read_zero }, 1687 [CSR_MHPMEVENT23] = { "mhpmevent23", any, read_zero }, 1688 [CSR_MHPMEVENT24] = { "mhpmevent24", any, read_zero }, 1689 [CSR_MHPMEVENT25] = { "mhpmevent25", any, read_zero }, 1690 [CSR_MHPMEVENT26] = { "mhpmevent26", any, read_zero }, 1691 [CSR_MHPMEVENT27] = { "mhpmevent27", any, read_zero }, 1692 [CSR_MHPMEVENT28] = { "mhpmevent28", any, read_zero }, 1693 [CSR_MHPMEVENT29] = { "mhpmevent29", any, read_zero }, 1694 [CSR_MHPMEVENT30] = { "mhpmevent30", any, read_zero }, 1695 [CSR_MHPMEVENT31] = { "mhpmevent31", any, read_zero }, 1696 1697 [CSR_HPMCOUNTER3H] = { "hpmcounter3h", ctr32, read_zero }, 1698 [CSR_HPMCOUNTER4H] = { "hpmcounter4h", ctr32, read_zero }, 1699 [CSR_HPMCOUNTER5H] = { "hpmcounter5h", ctr32, read_zero }, 1700 [CSR_HPMCOUNTER6H] = { "hpmcounter6h", ctr32, read_zero }, 1701 [CSR_HPMCOUNTER7H] = { "hpmcounter7h", ctr32, read_zero }, 1702 [CSR_HPMCOUNTER8H] = { "hpmcounter8h", ctr32, read_zero }, 1703 [CSR_HPMCOUNTER9H] = { "hpmcounter9h", ctr32, read_zero }, 1704 [CSR_HPMCOUNTER10H] = { "hpmcounter10h", ctr32, read_zero }, 1705 [CSR_HPMCOUNTER11H] = { "hpmcounter11h", ctr32, read_zero }, 1706 [CSR_HPMCOUNTER12H] = { "hpmcounter12h", ctr32, read_zero }, 1707 [CSR_HPMCOUNTER13H] = { "hpmcounter13h", ctr32, read_zero }, 1708 [CSR_HPMCOUNTER14H] = { "hpmcounter14h", ctr32, read_zero }, 1709 [CSR_HPMCOUNTER15H] = { "hpmcounter15h", ctr32, read_zero }, 1710 [CSR_HPMCOUNTER16H] = { "hpmcounter16h", ctr32, read_zero }, 1711 [CSR_HPMCOUNTER17H] = { "hpmcounter17h", ctr32, read_zero }, 1712 [CSR_HPMCOUNTER18H] = { "hpmcounter18h", ctr32, read_zero }, 1713 [CSR_HPMCOUNTER19H] = { "hpmcounter19h", ctr32, read_zero }, 1714 [CSR_HPMCOUNTER20H] = { "hpmcounter20h", ctr32, read_zero }, 1715 [CSR_HPMCOUNTER21H] = { "hpmcounter21h", ctr32, read_zero }, 1716 [CSR_HPMCOUNTER22H] = { "hpmcounter22h", ctr32, read_zero }, 1717 [CSR_HPMCOUNTER23H] = { "hpmcounter23h", ctr32, read_zero }, 1718 [CSR_HPMCOUNTER24H] = { "hpmcounter24h", ctr32, read_zero }, 1719 [CSR_HPMCOUNTER25H] = { "hpmcounter25h", ctr32, read_zero }, 1720 [CSR_HPMCOUNTER26H] = { "hpmcounter26h", ctr32, read_zero }, 1721 [CSR_HPMCOUNTER27H] = { "hpmcounter27h", ctr32, read_zero }, 1722 [CSR_HPMCOUNTER28H] = { "hpmcounter28h", ctr32, read_zero }, 1723 [CSR_HPMCOUNTER29H] = { "hpmcounter29h", ctr32, read_zero }, 1724 [CSR_HPMCOUNTER30H] = { "hpmcounter30h", ctr32, read_zero }, 1725 [CSR_HPMCOUNTER31H] = { "hpmcounter31h", ctr32, read_zero }, 1726 1727 [CSR_MHPMCOUNTER3H] = { "mhpmcounter3h", any32, read_zero }, 1728 [CSR_MHPMCOUNTER4H] = { "mhpmcounter4h", any32, read_zero }, 1729 [CSR_MHPMCOUNTER5H] = { "mhpmcounter5h", any32, read_zero }, 1730 [CSR_MHPMCOUNTER6H] = { "mhpmcounter6h", any32, read_zero }, 1731 [CSR_MHPMCOUNTER7H] = { "mhpmcounter7h", any32, read_zero }, 1732 [CSR_MHPMCOUNTER8H] = { "mhpmcounter8h", any32, read_zero }, 1733 [CSR_MHPMCOUNTER9H] = { "mhpmcounter9h", any32, read_zero }, 1734 [CSR_MHPMCOUNTER10H] = { "mhpmcounter10h", any32, read_zero }, 1735 [CSR_MHPMCOUNTER11H] = { "mhpmcounter11h", any32, read_zero }, 1736 [CSR_MHPMCOUNTER12H] = { "mhpmcounter12h", any32, read_zero }, 1737 [CSR_MHPMCOUNTER13H] = { "mhpmcounter13h", any32, read_zero }, 1738 [CSR_MHPMCOUNTER14H] = { "mhpmcounter14h", any32, read_zero }, 1739 [CSR_MHPMCOUNTER15H] = { "mhpmcounter15h", any32, read_zero }, 1740 [CSR_MHPMCOUNTER16H] = { "mhpmcounter16h", any32, read_zero }, 1741 [CSR_MHPMCOUNTER17H] = { "mhpmcounter17h", any32, read_zero }, 1742 [CSR_MHPMCOUNTER18H] = { "mhpmcounter18h", any32, read_zero }, 1743 [CSR_MHPMCOUNTER19H] = { "mhpmcounter19h", any32, read_zero }, 1744 [CSR_MHPMCOUNTER20H] = { "mhpmcounter20h", any32, read_zero }, 1745 [CSR_MHPMCOUNTER21H] = { "mhpmcounter21h", any32, read_zero }, 1746 [CSR_MHPMCOUNTER22H] = { "mhpmcounter22h", any32, read_zero }, 1747 [CSR_MHPMCOUNTER23H] = { "mhpmcounter23h", any32, read_zero }, 1748 [CSR_MHPMCOUNTER24H] = { "mhpmcounter24h", any32, read_zero }, 1749 [CSR_MHPMCOUNTER25H] = { "mhpmcounter25h", any32, read_zero }, 1750 [CSR_MHPMCOUNTER26H] = { "mhpmcounter26h", any32, read_zero }, 1751 [CSR_MHPMCOUNTER27H] = { "mhpmcounter27h", any32, read_zero }, 1752 [CSR_MHPMCOUNTER28H] = { "mhpmcounter28h", any32, read_zero }, 1753 [CSR_MHPMCOUNTER29H] = { "mhpmcounter29h", any32, read_zero }, 1754 [CSR_MHPMCOUNTER30H] = { "mhpmcounter30h", any32, read_zero }, 1755 [CSR_MHPMCOUNTER31H] = { "mhpmcounter31h", any32, read_zero }, 1756 #endif /* !CONFIG_USER_ONLY */ 1757 }; 1758