1 /* 2 * ARM virtual CPU header 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef ARM_CPU_H 21 #define ARM_CPU_H 22 23 #include "kvm-consts.h" 24 #include "qemu/cpu-float.h" 25 #include "hw/registerfields.h" 26 #include "cpu-qom.h" 27 #include "exec/cpu-defs.h" 28 #include "qapi/qapi-types-common.h" 29 30 /* ARM processors have a weak memory model */ 31 #define TCG_GUEST_DEFAULT_MO (0) 32 33 #ifdef TARGET_AARCH64 34 #define KVM_HAVE_MCE_INJECTION 1 35 #endif 36 37 #define EXCP_UDEF 1 /* undefined instruction */ 38 #define EXCP_SWI 2 /* software interrupt */ 39 #define EXCP_PREFETCH_ABORT 3 40 #define EXCP_DATA_ABORT 4 41 #define EXCP_IRQ 5 42 #define EXCP_FIQ 6 43 #define EXCP_BKPT 7 44 #define EXCP_EXCEPTION_EXIT 8 /* Return from v7M exception. */ 45 #define EXCP_KERNEL_TRAP 9 /* Jumped to kernel code page. */ 46 #define EXCP_HVC 11 /* HyperVisor Call */ 47 #define EXCP_HYP_TRAP 12 48 #define EXCP_SMC 13 /* Secure Monitor Call */ 49 #define EXCP_VIRQ 14 50 #define EXCP_VFIQ 15 51 #define EXCP_SEMIHOST 16 /* semihosting call */ 52 #define EXCP_NOCP 17 /* v7M NOCP UsageFault */ 53 #define EXCP_INVSTATE 18 /* v7M INVSTATE UsageFault */ 54 #define EXCP_STKOF 19 /* v8M STKOF UsageFault */ 55 #define EXCP_LAZYFP 20 /* v7M fault during lazy FP stacking */ 56 #define EXCP_LSERR 21 /* v8M LSERR SecureFault */ 57 #define EXCP_UNALIGNED 22 /* v7M UNALIGNED UsageFault */ 58 #define EXCP_DIVBYZERO 23 /* v7M DIVBYZERO UsageFault */ 59 #define EXCP_VSERR 24 60 #define EXCP_GPC 25 /* v9 Granule Protection Check Fault */ 61 /* NB: add new EXCP_ defines to the array in arm_log_exception() too */ 62 63 #define ARMV7M_EXCP_RESET 1 64 #define ARMV7M_EXCP_NMI 2 65 #define ARMV7M_EXCP_HARD 3 66 #define ARMV7M_EXCP_MEM 4 67 #define ARMV7M_EXCP_BUS 5 68 #define ARMV7M_EXCP_USAGE 6 69 #define ARMV7M_EXCP_SECURE 7 70 #define ARMV7M_EXCP_SVC 11 71 #define ARMV7M_EXCP_DEBUG 12 72 #define ARMV7M_EXCP_PENDSV 14 73 #define ARMV7M_EXCP_SYSTICK 15 74 75 /* For M profile, some registers are banked secure vs non-secure; 76 * these are represented as a 2-element array where the first element 77 * is the non-secure copy and the second is the secure copy. 78 * When the CPU does not have implement the security extension then 79 * only the first element is used. 80 * This means that the copy for the current security state can be 81 * accessed via env->registerfield[env->v7m.secure] (whether the security 82 * extension is implemented or not). 83 */ 84 enum { 85 M_REG_NS = 0, 86 M_REG_S = 1, 87 M_REG_NUM_BANKS = 2, 88 }; 89 90 /* ARM-specific interrupt pending bits. */ 91 #define CPU_INTERRUPT_FIQ CPU_INTERRUPT_TGT_EXT_1 92 #define CPU_INTERRUPT_VIRQ CPU_INTERRUPT_TGT_EXT_2 93 #define CPU_INTERRUPT_VFIQ CPU_INTERRUPT_TGT_EXT_3 94 #define CPU_INTERRUPT_VSERR CPU_INTERRUPT_TGT_INT_0 95 96 /* The usual mapping for an AArch64 system register to its AArch32 97 * counterpart is for the 32 bit world to have access to the lower 98 * half only (with writes leaving the upper half untouched). It's 99 * therefore useful to be able to pass TCG the offset of the least 100 * significant half of a uint64_t struct member. 101 */ 102 #if HOST_BIG_ENDIAN 103 #define offsetoflow32(S, M) (offsetof(S, M) + sizeof(uint32_t)) 104 #define offsetofhigh32(S, M) offsetof(S, M) 105 #else 106 #define offsetoflow32(S, M) offsetof(S, M) 107 #define offsetofhigh32(S, M) (offsetof(S, M) + sizeof(uint32_t)) 108 #endif 109 110 /* Meanings of the ARMCPU object's four inbound GPIO lines */ 111 #define ARM_CPU_IRQ 0 112 #define ARM_CPU_FIQ 1 113 #define ARM_CPU_VIRQ 2 114 #define ARM_CPU_VFIQ 3 115 116 /* ARM-specific extra insn start words: 117 * 1: Conditional execution bits 118 * 2: Partial exception syndrome for data aborts 119 */ 120 #define TARGET_INSN_START_EXTRA_WORDS 2 121 122 /* The 2nd extra word holding syndrome info for data aborts does not use 123 * the upper 6 bits nor the lower 14 bits. We mask and shift it down to 124 * help the sleb128 encoder do a better job. 125 * When restoring the CPU state, we shift it back up. 126 */ 127 #define ARM_INSN_START_WORD2_MASK ((1 << 26) - 1) 128 #define ARM_INSN_START_WORD2_SHIFT 14 129 130 /* We currently assume float and double are IEEE single and double 131 precision respectively. 132 Doing runtime conversions is tricky because VFP registers may contain 133 integer values (eg. as the result of a FTOSI instruction). 134 s<2n> maps to the least significant half of d<n> 135 s<2n+1> maps to the most significant half of d<n> 136 */ 137 138 /** 139 * DynamicGDBXMLInfo: 140 * @desc: Contains the XML descriptions. 141 * @num: Number of the registers in this XML seen by GDB. 142 * @data: A union with data specific to the set of registers 143 * @cpregs_keys: Array that contains the corresponding Key of 144 * a given cpreg with the same order of the cpreg 145 * in the XML description. 146 */ 147 typedef struct DynamicGDBXMLInfo { 148 char *desc; 149 int num; 150 union { 151 struct { 152 uint32_t *keys; 153 } cpregs; 154 } data; 155 } DynamicGDBXMLInfo; 156 157 /* CPU state for each instance of a generic timer (in cp15 c14) */ 158 typedef struct ARMGenericTimer { 159 uint64_t cval; /* Timer CompareValue register */ 160 uint64_t ctl; /* Timer Control register */ 161 } ARMGenericTimer; 162 163 #define GTIMER_PHYS 0 164 #define GTIMER_VIRT 1 165 #define GTIMER_HYP 2 166 #define GTIMER_SEC 3 167 #define GTIMER_HYPVIRT 4 168 #define NUM_GTIMERS 5 169 170 #define VTCR_NSW (1u << 29) 171 #define VTCR_NSA (1u << 30) 172 #define VSTCR_SW VTCR_NSW 173 #define VSTCR_SA VTCR_NSA 174 175 /* Define a maximum sized vector register. 176 * For 32-bit, this is a 128-bit NEON/AdvSIMD register. 177 * For 64-bit, this is a 2048-bit SVE register. 178 * 179 * Note that the mapping between S, D, and Q views of the register bank 180 * differs between AArch64 and AArch32. 181 * In AArch32: 182 * Qn = regs[n].d[1]:regs[n].d[0] 183 * Dn = regs[n / 2].d[n & 1] 184 * Sn = regs[n / 4].d[n % 4 / 2], 185 * bits 31..0 for even n, and bits 63..32 for odd n 186 * (and regs[16] to regs[31] are inaccessible) 187 * In AArch64: 188 * Zn = regs[n].d[*] 189 * Qn = regs[n].d[1]:regs[n].d[0] 190 * Dn = regs[n].d[0] 191 * Sn = regs[n].d[0] bits 31..0 192 * Hn = regs[n].d[0] bits 15..0 193 * 194 * This corresponds to the architecturally defined mapping between 195 * the two execution states, and means we do not need to explicitly 196 * map these registers when changing states. 197 * 198 * Align the data for use with TCG host vector operations. 199 */ 200 201 #ifdef TARGET_AARCH64 202 # define ARM_MAX_VQ 16 203 #else 204 # define ARM_MAX_VQ 1 205 #endif 206 207 typedef struct ARMVectorReg { 208 uint64_t d[2 * ARM_MAX_VQ] QEMU_ALIGNED(16); 209 } ARMVectorReg; 210 211 #ifdef TARGET_AARCH64 212 /* In AArch32 mode, predicate registers do not exist at all. */ 213 typedef struct ARMPredicateReg { 214 uint64_t p[DIV_ROUND_UP(2 * ARM_MAX_VQ, 8)] QEMU_ALIGNED(16); 215 } ARMPredicateReg; 216 217 /* In AArch32 mode, PAC keys do not exist at all. */ 218 typedef struct ARMPACKey { 219 uint64_t lo, hi; 220 } ARMPACKey; 221 #endif 222 223 /* See the commentary above the TBFLAG field definitions. */ 224 typedef struct CPUARMTBFlags { 225 uint32_t flags; 226 target_ulong flags2; 227 } CPUARMTBFlags; 228 229 typedef struct ARMMMUFaultInfo ARMMMUFaultInfo; 230 231 typedef struct NVICState NVICState; 232 233 typedef struct CPUArchState { 234 /* Regs for current mode. */ 235 uint32_t regs[16]; 236 237 /* 32/64 switch only happens when taking and returning from 238 * exceptions so the overlap semantics are taken care of then 239 * instead of having a complicated union. 240 */ 241 /* Regs for A64 mode. */ 242 uint64_t xregs[32]; 243 uint64_t pc; 244 /* PSTATE isn't an architectural register for ARMv8. However, it is 245 * convenient for us to assemble the underlying state into a 32 bit format 246 * identical to the architectural format used for the SPSR. (This is also 247 * what the Linux kernel's 'pstate' field in signal handlers and KVM's 248 * 'pstate' register are.) Of the PSTATE bits: 249 * NZCV are kept in the split out env->CF/VF/NF/ZF, (which have the same 250 * semantics as for AArch32, as described in the comments on each field) 251 * nRW (also known as M[4]) is kept, inverted, in env->aarch64 252 * DAIF (exception masks) are kept in env->daif 253 * BTYPE is kept in env->btype 254 * SM and ZA are kept in env->svcr 255 * all other bits are stored in their correct places in env->pstate 256 */ 257 uint32_t pstate; 258 bool aarch64; /* True if CPU is in aarch64 state; inverse of PSTATE.nRW */ 259 bool thumb; /* True if CPU is in thumb mode; cpsr[5] */ 260 261 /* Cached TBFLAGS state. See below for which bits are included. */ 262 CPUARMTBFlags hflags; 263 264 /* Frequently accessed CPSR bits are stored separately for efficiency. 265 This contains all the other bits. Use cpsr_{read,write} to access 266 the whole CPSR. */ 267 uint32_t uncached_cpsr; 268 uint32_t spsr; 269 270 /* Banked registers. */ 271 uint64_t banked_spsr[8]; 272 uint32_t banked_r13[8]; 273 uint32_t banked_r14[8]; 274 275 /* These hold r8-r12. */ 276 uint32_t usr_regs[5]; 277 uint32_t fiq_regs[5]; 278 279 /* cpsr flag cache for faster execution */ 280 uint32_t CF; /* 0 or 1 */ 281 uint32_t VF; /* V is the bit 31. All other bits are undefined */ 282 uint32_t NF; /* N is bit 31. All other bits are undefined. */ 283 uint32_t ZF; /* Z set if zero. */ 284 uint32_t QF; /* 0 or 1 */ 285 uint32_t GE; /* cpsr[19:16] */ 286 uint32_t condexec_bits; /* IT bits. cpsr[15:10,26:25]. */ 287 uint32_t btype; /* BTI branch type. spsr[11:10]. */ 288 uint64_t daif; /* exception masks, in the bits they are in PSTATE */ 289 uint64_t svcr; /* PSTATE.{SM,ZA} in the bits they are in SVCR */ 290 291 uint64_t elr_el[4]; /* AArch64 exception link regs */ 292 uint64_t sp_el[4]; /* AArch64 banked stack pointers */ 293 294 /* System control coprocessor (cp15) */ 295 struct { 296 uint32_t c0_cpuid; 297 union { /* Cache size selection */ 298 struct { 299 uint64_t _unused_csselr0; 300 uint64_t csselr_ns; 301 uint64_t _unused_csselr1; 302 uint64_t csselr_s; 303 }; 304 uint64_t csselr_el[4]; 305 }; 306 union { /* System control register. */ 307 struct { 308 uint64_t _unused_sctlr; 309 uint64_t sctlr_ns; 310 uint64_t hsctlr; 311 uint64_t sctlr_s; 312 }; 313 uint64_t sctlr_el[4]; 314 }; 315 uint64_t vsctlr; /* Virtualization System control register. */ 316 uint64_t cpacr_el1; /* Architectural feature access control register */ 317 uint64_t cptr_el[4]; /* ARMv8 feature trap registers */ 318 uint32_t c1_xscaleauxcr; /* XScale auxiliary control register. */ 319 uint64_t sder; /* Secure debug enable register. */ 320 uint32_t nsacr; /* Non-secure access control register. */ 321 union { /* MMU translation table base 0. */ 322 struct { 323 uint64_t _unused_ttbr0_0; 324 uint64_t ttbr0_ns; 325 uint64_t _unused_ttbr0_1; 326 uint64_t ttbr0_s; 327 }; 328 uint64_t ttbr0_el[4]; 329 }; 330 union { /* MMU translation table base 1. */ 331 struct { 332 uint64_t _unused_ttbr1_0; 333 uint64_t ttbr1_ns; 334 uint64_t _unused_ttbr1_1; 335 uint64_t ttbr1_s; 336 }; 337 uint64_t ttbr1_el[4]; 338 }; 339 uint64_t vttbr_el2; /* Virtualization Translation Table Base. */ 340 uint64_t vsttbr_el2; /* Secure Virtualization Translation Table. */ 341 /* MMU translation table base control. */ 342 uint64_t tcr_el[4]; 343 uint64_t vtcr_el2; /* Virtualization Translation Control. */ 344 uint64_t vstcr_el2; /* Secure Virtualization Translation Control. */ 345 uint32_t c2_data; /* MPU data cacheable bits. */ 346 uint32_t c2_insn; /* MPU instruction cacheable bits. */ 347 union { /* MMU domain access control register 348 * MPU write buffer control. 349 */ 350 struct { 351 uint64_t dacr_ns; 352 uint64_t dacr_s; 353 }; 354 struct { 355 uint64_t dacr32_el2; 356 }; 357 }; 358 uint32_t pmsav5_data_ap; /* PMSAv5 MPU data access permissions */ 359 uint32_t pmsav5_insn_ap; /* PMSAv5 MPU insn access permissions */ 360 uint64_t hcr_el2; /* Hypervisor configuration register */ 361 uint64_t hcrx_el2; /* Extended Hypervisor configuration register */ 362 uint64_t scr_el3; /* Secure configuration register. */ 363 union { /* Fault status registers. */ 364 struct { 365 uint64_t ifsr_ns; 366 uint64_t ifsr_s; 367 }; 368 struct { 369 uint64_t ifsr32_el2; 370 }; 371 }; 372 union { 373 struct { 374 uint64_t _unused_dfsr; 375 uint64_t dfsr_ns; 376 uint64_t hsr; 377 uint64_t dfsr_s; 378 }; 379 uint64_t esr_el[4]; 380 }; 381 uint32_t c6_region[8]; /* MPU base/size registers. */ 382 union { /* Fault address registers. */ 383 struct { 384 uint64_t _unused_far0; 385 #if HOST_BIG_ENDIAN 386 uint32_t ifar_ns; 387 uint32_t dfar_ns; 388 uint32_t ifar_s; 389 uint32_t dfar_s; 390 #else 391 uint32_t dfar_ns; 392 uint32_t ifar_ns; 393 uint32_t dfar_s; 394 uint32_t ifar_s; 395 #endif 396 uint64_t _unused_far3; 397 }; 398 uint64_t far_el[4]; 399 }; 400 uint64_t hpfar_el2; 401 uint64_t hstr_el2; 402 union { /* Translation result. */ 403 struct { 404 uint64_t _unused_par_0; 405 uint64_t par_ns; 406 uint64_t _unused_par_1; 407 uint64_t par_s; 408 }; 409 uint64_t par_el[4]; 410 }; 411 412 uint32_t c9_insn; /* Cache lockdown registers. */ 413 uint32_t c9_data; 414 uint64_t c9_pmcr; /* performance monitor control register */ 415 uint64_t c9_pmcnten; /* perf monitor counter enables */ 416 uint64_t c9_pmovsr; /* perf monitor overflow status */ 417 uint64_t c9_pmuserenr; /* perf monitor user enable */ 418 uint64_t c9_pmselr; /* perf monitor counter selection register */ 419 uint64_t c9_pminten; /* perf monitor interrupt enables */ 420 union { /* Memory attribute redirection */ 421 struct { 422 #if HOST_BIG_ENDIAN 423 uint64_t _unused_mair_0; 424 uint32_t mair1_ns; 425 uint32_t mair0_ns; 426 uint64_t _unused_mair_1; 427 uint32_t mair1_s; 428 uint32_t mair0_s; 429 #else 430 uint64_t _unused_mair_0; 431 uint32_t mair0_ns; 432 uint32_t mair1_ns; 433 uint64_t _unused_mair_1; 434 uint32_t mair0_s; 435 uint32_t mair1_s; 436 #endif 437 }; 438 uint64_t mair_el[4]; 439 }; 440 union { /* vector base address register */ 441 struct { 442 uint64_t _unused_vbar; 443 uint64_t vbar_ns; 444 uint64_t hvbar; 445 uint64_t vbar_s; 446 }; 447 uint64_t vbar_el[4]; 448 }; 449 uint32_t mvbar; /* (monitor) vector base address register */ 450 uint64_t rvbar; /* rvbar sampled from rvbar property at reset */ 451 struct { /* FCSE PID. */ 452 uint32_t fcseidr_ns; 453 uint32_t fcseidr_s; 454 }; 455 union { /* Context ID. */ 456 struct { 457 uint64_t _unused_contextidr_0; 458 uint64_t contextidr_ns; 459 uint64_t _unused_contextidr_1; 460 uint64_t contextidr_s; 461 }; 462 uint64_t contextidr_el[4]; 463 }; 464 union { /* User RW Thread register. */ 465 struct { 466 uint64_t tpidrurw_ns; 467 uint64_t tpidrprw_ns; 468 uint64_t htpidr; 469 uint64_t _tpidr_el3; 470 }; 471 uint64_t tpidr_el[4]; 472 }; 473 uint64_t tpidr2_el0; 474 /* The secure banks of these registers don't map anywhere */ 475 uint64_t tpidrurw_s; 476 uint64_t tpidrprw_s; 477 uint64_t tpidruro_s; 478 479 union { /* User RO Thread register. */ 480 uint64_t tpidruro_ns; 481 uint64_t tpidrro_el[1]; 482 }; 483 uint64_t c14_cntfrq; /* Counter Frequency register */ 484 uint64_t c14_cntkctl; /* Timer Control register */ 485 uint64_t cnthctl_el2; /* Counter/Timer Hyp Control register */ 486 uint64_t cntvoff_el2; /* Counter Virtual Offset register */ 487 ARMGenericTimer c14_timer[NUM_GTIMERS]; 488 uint32_t c15_cpar; /* XScale Coprocessor Access Register */ 489 uint32_t c15_ticonfig; /* TI925T configuration byte. */ 490 uint32_t c15_i_max; /* Maximum D-cache dirty line index. */ 491 uint32_t c15_i_min; /* Minimum D-cache dirty line index. */ 492 uint32_t c15_threadid; /* TI debugger thread-ID. */ 493 uint32_t c15_config_base_address; /* SCU base address. */ 494 uint32_t c15_diagnostic; /* diagnostic register */ 495 uint32_t c15_power_diagnostic; 496 uint32_t c15_power_control; /* power control */ 497 uint64_t dbgbvr[16]; /* breakpoint value registers */ 498 uint64_t dbgbcr[16]; /* breakpoint control registers */ 499 uint64_t dbgwvr[16]; /* watchpoint value registers */ 500 uint64_t dbgwcr[16]; /* watchpoint control registers */ 501 uint64_t dbgclaim; /* DBGCLAIM bits */ 502 uint64_t mdscr_el1; 503 uint64_t oslsr_el1; /* OS Lock Status */ 504 uint64_t osdlr_el1; /* OS DoubleLock status */ 505 uint64_t mdcr_el2; 506 uint64_t mdcr_el3; 507 /* Stores the architectural value of the counter *the last time it was 508 * updated* by pmccntr_op_start. Accesses should always be surrounded 509 * by pmccntr_op_start/pmccntr_op_finish to guarantee the latest 510 * architecturally-correct value is being read/set. 511 */ 512 uint64_t c15_ccnt; 513 /* Stores the delta between the architectural value and the underlying 514 * cycle count during normal operation. It is used to update c15_ccnt 515 * to be the correct architectural value before accesses. During 516 * accesses, c15_ccnt_delta contains the underlying count being used 517 * for the access, after which it reverts to the delta value in 518 * pmccntr_op_finish. 519 */ 520 uint64_t c15_ccnt_delta; 521 uint64_t c14_pmevcntr[31]; 522 uint64_t c14_pmevcntr_delta[31]; 523 uint64_t c14_pmevtyper[31]; 524 uint64_t pmccfiltr_el0; /* Performance Monitor Filter Register */ 525 uint64_t vpidr_el2; /* Virtualization Processor ID Register */ 526 uint64_t vmpidr_el2; /* Virtualization Multiprocessor ID Register */ 527 uint64_t tfsr_el[4]; /* tfsre0_el1 is index 0. */ 528 uint64_t gcr_el1; 529 uint64_t rgsr_el1; 530 531 /* Minimal RAS registers */ 532 uint64_t disr_el1; 533 uint64_t vdisr_el2; 534 uint64_t vsesr_el2; 535 536 /* 537 * Fine-Grained Trap registers. We store these as arrays so the 538 * access checking code doesn't have to manually select 539 * HFGRTR_EL2 vs HFDFGRTR_EL2 etc when looking up the bit to test. 540 * FEAT_FGT2 will add more elements to these arrays. 541 */ 542 uint64_t fgt_read[2]; /* HFGRTR, HDFGRTR */ 543 uint64_t fgt_write[2]; /* HFGWTR, HDFGWTR */ 544 uint64_t fgt_exec[1]; /* HFGITR */ 545 546 /* RME registers */ 547 uint64_t gpccr_el3; 548 uint64_t gptbr_el3; 549 uint64_t mfar_el3; 550 551 /* NV2 register */ 552 uint64_t vncr_el2; 553 } cp15; 554 555 struct { 556 /* M profile has up to 4 stack pointers: 557 * a Main Stack Pointer and a Process Stack Pointer for each 558 * of the Secure and Non-Secure states. (If the CPU doesn't support 559 * the security extension then it has only two SPs.) 560 * In QEMU we always store the currently active SP in regs[13], 561 * and the non-active SP for the current security state in 562 * v7m.other_sp. The stack pointers for the inactive security state 563 * are stored in other_ss_msp and other_ss_psp. 564 * switch_v7m_security_state() is responsible for rearranging them 565 * when we change security state. 566 */ 567 uint32_t other_sp; 568 uint32_t other_ss_msp; 569 uint32_t other_ss_psp; 570 uint32_t vecbase[M_REG_NUM_BANKS]; 571 uint32_t basepri[M_REG_NUM_BANKS]; 572 uint32_t control[M_REG_NUM_BANKS]; 573 uint32_t ccr[M_REG_NUM_BANKS]; /* Configuration and Control */ 574 uint32_t cfsr[M_REG_NUM_BANKS]; /* Configurable Fault Status */ 575 uint32_t hfsr; /* HardFault Status */ 576 uint32_t dfsr; /* Debug Fault Status Register */ 577 uint32_t sfsr; /* Secure Fault Status Register */ 578 uint32_t mmfar[M_REG_NUM_BANKS]; /* MemManage Fault Address */ 579 uint32_t bfar; /* BusFault Address */ 580 uint32_t sfar; /* Secure Fault Address Register */ 581 unsigned mpu_ctrl[M_REG_NUM_BANKS]; /* MPU_CTRL */ 582 int exception; 583 uint32_t primask[M_REG_NUM_BANKS]; 584 uint32_t faultmask[M_REG_NUM_BANKS]; 585 uint32_t aircr; /* only holds r/w state if security extn implemented */ 586 uint32_t secure; /* Is CPU in Secure state? (not guest visible) */ 587 uint32_t csselr[M_REG_NUM_BANKS]; 588 uint32_t scr[M_REG_NUM_BANKS]; 589 uint32_t msplim[M_REG_NUM_BANKS]; 590 uint32_t psplim[M_REG_NUM_BANKS]; 591 uint32_t fpcar[M_REG_NUM_BANKS]; 592 uint32_t fpccr[M_REG_NUM_BANKS]; 593 uint32_t fpdscr[M_REG_NUM_BANKS]; 594 uint32_t cpacr[M_REG_NUM_BANKS]; 595 uint32_t nsacr; 596 uint32_t ltpsize; 597 uint32_t vpr; 598 } v7m; 599 600 /* Information associated with an exception about to be taken: 601 * code which raises an exception must set cs->exception_index and 602 * the relevant parts of this structure; the cpu_do_interrupt function 603 * will then set the guest-visible registers as part of the exception 604 * entry process. 605 */ 606 struct { 607 uint32_t syndrome; /* AArch64 format syndrome register */ 608 uint32_t fsr; /* AArch32 format fault status register info */ 609 uint64_t vaddress; /* virtual addr associated with exception, if any */ 610 uint32_t target_el; /* EL the exception should be targeted for */ 611 /* If we implement EL2 we will also need to store information 612 * about the intermediate physical address for stage 2 faults. 613 */ 614 } exception; 615 616 /* Information associated with an SError */ 617 struct { 618 uint8_t pending; 619 uint8_t has_esr; 620 uint64_t esr; 621 } serror; 622 623 uint8_t ext_dabt_raised; /* Tracking/verifying injection of ext DABT */ 624 625 /* State of our input IRQ/FIQ/VIRQ/VFIQ lines */ 626 uint32_t irq_line_state; 627 628 /* Thumb-2 EE state. */ 629 uint32_t teecr; 630 uint32_t teehbr; 631 632 /* VFP coprocessor state. */ 633 struct { 634 ARMVectorReg zregs[32]; 635 636 #ifdef TARGET_AARCH64 637 /* Store FFR as pregs[16] to make it easier to treat as any other. */ 638 #define FFR_PRED_NUM 16 639 ARMPredicateReg pregs[17]; 640 /* Scratch space for aa64 sve predicate temporary. */ 641 ARMPredicateReg preg_tmp; 642 #endif 643 644 /* We store these fpcsr fields separately for convenience. */ 645 uint32_t qc[4] QEMU_ALIGNED(16); 646 int vec_len; 647 int vec_stride; 648 649 uint32_t xregs[16]; 650 651 /* Scratch space for aa32 neon expansion. */ 652 uint32_t scratch[8]; 653 654 /* There are a number of distinct float control structures: 655 * 656 * fp_status: is the "normal" fp status. 657 * fp_status_fp16: used for half-precision calculations 658 * standard_fp_status : the ARM "Standard FPSCR Value" 659 * standard_fp_status_fp16 : used for half-precision 660 * calculations with the ARM "Standard FPSCR Value" 661 * 662 * Half-precision operations are governed by a separate 663 * flush-to-zero control bit in FPSCR:FZ16. We pass a separate 664 * status structure to control this. 665 * 666 * The "Standard FPSCR", ie default-NaN, flush-to-zero, 667 * round-to-nearest and is used by any operations (generally 668 * Neon) which the architecture defines as controlled by the 669 * standard FPSCR value rather than the FPSCR. 670 * 671 * The "standard FPSCR but for fp16 ops" is needed because 672 * the "standard FPSCR" tracks the FPSCR.FZ16 bit rather than 673 * using a fixed value for it. 674 * 675 * To avoid having to transfer exception bits around, we simply 676 * say that the FPSCR cumulative exception flags are the logical 677 * OR of the flags in the four fp statuses. This relies on the 678 * only thing which needs to read the exception flags being 679 * an explicit FPSCR read. 680 */ 681 float_status fp_status; 682 float_status fp_status_f16; 683 float_status standard_fp_status; 684 float_status standard_fp_status_f16; 685 686 uint64_t zcr_el[4]; /* ZCR_EL[1-3] */ 687 uint64_t smcr_el[4]; /* SMCR_EL[1-3] */ 688 } vfp; 689 690 uint64_t exclusive_addr; 691 uint64_t exclusive_val; 692 /* 693 * Contains the 'val' for the second 64-bit register of LDXP, which comes 694 * from the higher address, not the high part of a complete 128-bit value. 695 * In some ways it might be more convenient to record the exclusive value 696 * as the low and high halves of a 128 bit data value, but the current 697 * semantics of these fields are baked into the migration format. 698 */ 699 uint64_t exclusive_high; 700 701 /* iwMMXt coprocessor state. */ 702 struct { 703 uint64_t regs[16]; 704 uint64_t val; 705 706 uint32_t cregs[16]; 707 } iwmmxt; 708 709 #ifdef TARGET_AARCH64 710 struct { 711 ARMPACKey apia; 712 ARMPACKey apib; 713 ARMPACKey apda; 714 ARMPACKey apdb; 715 ARMPACKey apga; 716 } keys; 717 718 uint64_t scxtnum_el[4]; 719 720 /* 721 * SME ZA storage -- 256 x 256 byte array, with bytes in host word order, 722 * as we do with vfp.zregs[]. This corresponds to the architectural ZA 723 * array, where ZA[N] is in the least-significant bytes of env->zarray[N]. 724 * When SVL is less than the architectural maximum, the accessible 725 * storage is restricted, such that if the SVL is X bytes the guest can 726 * see only the bottom X elements of zarray[], and only the least 727 * significant X bytes of each element of the array. (In other words, 728 * the observable part is always square.) 729 * 730 * The ZA storage can also be considered as a set of square tiles of 731 * elements of different sizes. The mapping from tiles to the ZA array 732 * is architecturally defined, such that for tiles of elements of esz 733 * bytes, the Nth row (or "horizontal slice") of tile T is in 734 * ZA[T + N * esz]. Note that this means that each tile is not contiguous 735 * in the ZA storage, because its rows are striped through the ZA array. 736 * 737 * Because this is so large, keep this toward the end of the reset area, 738 * to keep the offsets into the rest of the structure smaller. 739 */ 740 ARMVectorReg zarray[ARM_MAX_VQ * 16]; 741 #endif 742 743 struct CPUBreakpoint *cpu_breakpoint[16]; 744 struct CPUWatchpoint *cpu_watchpoint[16]; 745 746 /* Optional fault info across tlb lookup. */ 747 ARMMMUFaultInfo *tlb_fi; 748 749 /* Fields up to this point are cleared by a CPU reset */ 750 struct {} end_reset_fields; 751 752 /* Fields after this point are preserved across CPU reset. */ 753 754 /* Internal CPU feature flags. */ 755 uint64_t features; 756 757 /* PMSAv7 MPU */ 758 struct { 759 uint32_t *drbar; 760 uint32_t *drsr; 761 uint32_t *dracr; 762 uint32_t rnr[M_REG_NUM_BANKS]; 763 } pmsav7; 764 765 /* PMSAv8 MPU */ 766 struct { 767 /* The PMSAv8 implementation also shares some PMSAv7 config 768 * and state: 769 * pmsav7.rnr (region number register) 770 * pmsav7_dregion (number of configured regions) 771 */ 772 uint32_t *rbar[M_REG_NUM_BANKS]; 773 uint32_t *rlar[M_REG_NUM_BANKS]; 774 uint32_t *hprbar; 775 uint32_t *hprlar; 776 uint32_t mair0[M_REG_NUM_BANKS]; 777 uint32_t mair1[M_REG_NUM_BANKS]; 778 uint32_t hprselr; 779 } pmsav8; 780 781 /* v8M SAU */ 782 struct { 783 uint32_t *rbar; 784 uint32_t *rlar; 785 uint32_t rnr; 786 uint32_t ctrl; 787 } sau; 788 789 #if !defined(CONFIG_USER_ONLY) 790 NVICState *nvic; 791 const struct arm_boot_info *boot_info; 792 /* Store GICv3CPUState to access from this struct */ 793 void *gicv3state; 794 #else /* CONFIG_USER_ONLY */ 795 /* For usermode syscall translation. */ 796 bool eabi; 797 #endif /* CONFIG_USER_ONLY */ 798 799 #ifdef TARGET_TAGGED_ADDRESSES 800 /* Linux syscall tagged address support */ 801 bool tagged_addr_enable; 802 #endif 803 } CPUARMState; 804 805 static inline void set_feature(CPUARMState *env, int feature) 806 { 807 env->features |= 1ULL << feature; 808 } 809 810 static inline void unset_feature(CPUARMState *env, int feature) 811 { 812 env->features &= ~(1ULL << feature); 813 } 814 815 /** 816 * ARMELChangeHookFn: 817 * type of a function which can be registered via arm_register_el_change_hook() 818 * to get callbacks when the CPU changes its exception level or mode. 819 */ 820 typedef void ARMELChangeHookFn(ARMCPU *cpu, void *opaque); 821 typedef struct ARMELChangeHook ARMELChangeHook; 822 struct ARMELChangeHook { 823 ARMELChangeHookFn *hook; 824 void *opaque; 825 QLIST_ENTRY(ARMELChangeHook) node; 826 }; 827 828 /* These values map onto the return values for 829 * QEMU_PSCI_0_2_FN_AFFINITY_INFO */ 830 typedef enum ARMPSCIState { 831 PSCI_ON = 0, 832 PSCI_OFF = 1, 833 PSCI_ON_PENDING = 2 834 } ARMPSCIState; 835 836 typedef struct ARMISARegisters ARMISARegisters; 837 838 /* 839 * In map, each set bit is a supported vector length of (bit-number + 1) * 16 840 * bytes, i.e. each bit number + 1 is the vector length in quadwords. 841 * 842 * While processing properties during initialization, corresponding init bits 843 * are set for bits in sve_vq_map that have been set by properties. 844 * 845 * Bits set in supported represent valid vector lengths for the CPU type. 846 */ 847 typedef struct { 848 uint32_t map, init, supported; 849 } ARMVQMap; 850 851 /** 852 * ARMCPU: 853 * @env: #CPUARMState 854 * 855 * An ARM CPU core. 856 */ 857 struct ArchCPU { 858 CPUState parent_obj; 859 860 CPUARMState env; 861 862 /* Coprocessor information */ 863 GHashTable *cp_regs; 864 /* For marshalling (mostly coprocessor) register state between the 865 * kernel and QEMU (for KVM) and between two QEMUs (for migration), 866 * we use these arrays. 867 */ 868 /* List of register indexes managed via these arrays; (full KVM style 869 * 64 bit indexes, not CPRegInfo 32 bit indexes) 870 */ 871 uint64_t *cpreg_indexes; 872 /* Values of the registers (cpreg_indexes[i]'s value is cpreg_values[i]) */ 873 uint64_t *cpreg_values; 874 /* Length of the indexes, values, reset_values arrays */ 875 int32_t cpreg_array_len; 876 /* These are used only for migration: incoming data arrives in 877 * these fields and is sanity checked in post_load before copying 878 * to the working data structures above. 879 */ 880 uint64_t *cpreg_vmstate_indexes; 881 uint64_t *cpreg_vmstate_values; 882 int32_t cpreg_vmstate_array_len; 883 884 DynamicGDBXMLInfo dyn_sysreg_xml; 885 DynamicGDBXMLInfo dyn_svereg_xml; 886 DynamicGDBXMLInfo dyn_m_systemreg_xml; 887 DynamicGDBXMLInfo dyn_m_secextreg_xml; 888 889 /* Timers used by the generic (architected) timer */ 890 QEMUTimer *gt_timer[NUM_GTIMERS]; 891 /* 892 * Timer used by the PMU. Its state is restored after migration by 893 * pmu_op_finish() - it does not need other handling during migration 894 */ 895 QEMUTimer *pmu_timer; 896 /* GPIO outputs for generic timer */ 897 qemu_irq gt_timer_outputs[NUM_GTIMERS]; 898 /* GPIO output for GICv3 maintenance interrupt signal */ 899 qemu_irq gicv3_maintenance_interrupt; 900 /* GPIO output for the PMU interrupt */ 901 qemu_irq pmu_interrupt; 902 903 /* MemoryRegion to use for secure physical accesses */ 904 MemoryRegion *secure_memory; 905 906 /* MemoryRegion to use for allocation tag accesses */ 907 MemoryRegion *tag_memory; 908 MemoryRegion *secure_tag_memory; 909 910 /* For v8M, pointer to the IDAU interface provided by board/SoC */ 911 Object *idau; 912 913 /* 'compatible' string for this CPU for Linux device trees */ 914 const char *dtb_compatible; 915 916 /* PSCI version for this CPU 917 * Bits[31:16] = Major Version 918 * Bits[15:0] = Minor Version 919 */ 920 uint32_t psci_version; 921 922 /* Current power state, access guarded by BQL */ 923 ARMPSCIState power_state; 924 925 /* CPU has virtualization extension */ 926 bool has_el2; 927 /* CPU has security extension */ 928 bool has_el3; 929 /* CPU has PMU (Performance Monitor Unit) */ 930 bool has_pmu; 931 /* CPU has VFP */ 932 bool has_vfp; 933 /* CPU has 32 VFP registers */ 934 bool has_vfp_d32; 935 /* CPU has Neon */ 936 bool has_neon; 937 /* CPU has M-profile DSP extension */ 938 bool has_dsp; 939 940 /* CPU has memory protection unit */ 941 bool has_mpu; 942 /* PMSAv7 MPU number of supported regions */ 943 uint32_t pmsav7_dregion; 944 /* PMSAv8 MPU number of supported hyp regions */ 945 uint32_t pmsav8r_hdregion; 946 /* v8M SAU number of supported regions */ 947 uint32_t sau_sregion; 948 949 /* PSCI conduit used to invoke PSCI methods 950 * 0 - disabled, 1 - smc, 2 - hvc 951 */ 952 uint32_t psci_conduit; 953 954 /* For v8M, initial value of the Secure VTOR */ 955 uint32_t init_svtor; 956 /* For v8M, initial value of the Non-secure VTOR */ 957 uint32_t init_nsvtor; 958 959 /* [QEMU_]KVM_ARM_TARGET_* constant for this CPU, or 960 * QEMU_KVM_ARM_TARGET_NONE if the kernel doesn't support this CPU type. 961 */ 962 uint32_t kvm_target; 963 964 #ifdef CONFIG_KVM 965 /* KVM init features for this CPU */ 966 uint32_t kvm_init_features[7]; 967 968 /* KVM CPU state */ 969 970 /* KVM virtual time adjustment */ 971 bool kvm_adjvtime; 972 bool kvm_vtime_dirty; 973 uint64_t kvm_vtime; 974 975 /* KVM steal time */ 976 OnOffAuto kvm_steal_time; 977 #endif /* CONFIG_KVM */ 978 979 /* Uniprocessor system with MP extensions */ 980 bool mp_is_up; 981 982 /* True if we tried kvm_arm_host_cpu_features() during CPU instance_init 983 * and the probe failed (so we need to report the error in realize) 984 */ 985 bool host_cpu_probe_failed; 986 987 /* Specify the number of cores in this CPU cluster. Used for the L2CTLR 988 * register. 989 */ 990 int32_t core_count; 991 992 /* The instance init functions for implementation-specific subclasses 993 * set these fields to specify the implementation-dependent values of 994 * various constant registers and reset values of non-constant 995 * registers. 996 * Some of these might become QOM properties eventually. 997 * Field names match the official register names as defined in the 998 * ARMv7AR ARM Architecture Reference Manual. A reset_ prefix 999 * is used for reset values of non-constant registers; no reset_ 1000 * prefix means a constant register. 1001 * Some of these registers are split out into a substructure that 1002 * is shared with the translators to control the ISA. 1003 * 1004 * Note that if you add an ID register to the ARMISARegisters struct 1005 * you need to also update the 32-bit and 64-bit versions of the 1006 * kvm_arm_get_host_cpu_features() function to correctly populate the 1007 * field by reading the value from the KVM vCPU. 1008 */ 1009 struct ARMISARegisters { 1010 uint32_t id_isar0; 1011 uint32_t id_isar1; 1012 uint32_t id_isar2; 1013 uint32_t id_isar3; 1014 uint32_t id_isar4; 1015 uint32_t id_isar5; 1016 uint32_t id_isar6; 1017 uint32_t id_mmfr0; 1018 uint32_t id_mmfr1; 1019 uint32_t id_mmfr2; 1020 uint32_t id_mmfr3; 1021 uint32_t id_mmfr4; 1022 uint32_t id_mmfr5; 1023 uint32_t id_pfr0; 1024 uint32_t id_pfr1; 1025 uint32_t id_pfr2; 1026 uint32_t mvfr0; 1027 uint32_t mvfr1; 1028 uint32_t mvfr2; 1029 uint32_t id_dfr0; 1030 uint32_t id_dfr1; 1031 uint32_t dbgdidr; 1032 uint32_t dbgdevid; 1033 uint32_t dbgdevid1; 1034 uint64_t id_aa64isar0; 1035 uint64_t id_aa64isar1; 1036 uint64_t id_aa64isar2; 1037 uint64_t id_aa64pfr0; 1038 uint64_t id_aa64pfr1; 1039 uint64_t id_aa64mmfr0; 1040 uint64_t id_aa64mmfr1; 1041 uint64_t id_aa64mmfr2; 1042 uint64_t id_aa64dfr0; 1043 uint64_t id_aa64dfr1; 1044 uint64_t id_aa64zfr0; 1045 uint64_t id_aa64smfr0; 1046 uint64_t reset_pmcr_el0; 1047 } isar; 1048 uint64_t midr; 1049 uint32_t revidr; 1050 uint32_t reset_fpsid; 1051 uint64_t ctr; 1052 uint32_t reset_sctlr; 1053 uint64_t pmceid0; 1054 uint64_t pmceid1; 1055 uint32_t id_afr0; 1056 uint64_t id_aa64afr0; 1057 uint64_t id_aa64afr1; 1058 uint64_t clidr; 1059 uint64_t mp_affinity; /* MP ID without feature bits */ 1060 /* The elements of this array are the CCSIDR values for each cache, 1061 * in the order L1DCache, L1ICache, L2DCache, L2ICache, etc. 1062 */ 1063 uint64_t ccsidr[16]; 1064 uint64_t reset_cbar; 1065 uint32_t reset_auxcr; 1066 bool reset_hivecs; 1067 uint8_t reset_l0gptsz; 1068 1069 /* 1070 * Intermediate values used during property parsing. 1071 * Once finalized, the values should be read from ID_AA64*. 1072 */ 1073 bool prop_pauth; 1074 bool prop_pauth_impdef; 1075 bool prop_pauth_qarma3; 1076 bool prop_lpa2; 1077 1078 /* DCZ blocksize, in log_2(words), ie low 4 bits of DCZID_EL0 */ 1079 uint8_t dcz_blocksize; 1080 /* GM blocksize, in log_2(words), ie low 4 bits of GMID_EL0 */ 1081 uint8_t gm_blocksize; 1082 1083 uint64_t rvbar_prop; /* Property/input signals. */ 1084 1085 /* Configurable aspects of GIC cpu interface (which is part of the CPU) */ 1086 int gic_num_lrs; /* number of list registers */ 1087 int gic_vpribits; /* number of virtual priority bits */ 1088 int gic_vprebits; /* number of virtual preemption bits */ 1089 int gic_pribits; /* number of physical priority bits */ 1090 1091 /* Whether the cfgend input is high (i.e. this CPU should reset into 1092 * big-endian mode). This setting isn't used directly: instead it modifies 1093 * the reset_sctlr value to have SCTLR_B or SCTLR_EE set, depending on the 1094 * architecture version. 1095 */ 1096 bool cfgend; 1097 1098 QLIST_HEAD(, ARMELChangeHook) pre_el_change_hooks; 1099 QLIST_HEAD(, ARMELChangeHook) el_change_hooks; 1100 1101 int32_t node_id; /* NUMA node this CPU belongs to */ 1102 1103 /* Used to synchronize KVM and QEMU in-kernel device levels */ 1104 uint8_t device_irq_level; 1105 1106 /* Used to set the maximum vector length the cpu will support. */ 1107 uint32_t sve_max_vq; 1108 1109 #ifdef CONFIG_USER_ONLY 1110 /* Used to set the default vector length at process start. */ 1111 uint32_t sve_default_vq; 1112 uint32_t sme_default_vq; 1113 #endif 1114 1115 ARMVQMap sve_vq; 1116 ARMVQMap sme_vq; 1117 1118 /* Generic timer counter frequency, in Hz */ 1119 uint64_t gt_cntfrq_hz; 1120 }; 1121 1122 typedef struct ARMCPUInfo { 1123 const char *name; 1124 void (*initfn)(Object *obj); 1125 void (*class_init)(ObjectClass *oc, void *data); 1126 } ARMCPUInfo; 1127 1128 /** 1129 * ARMCPUClass: 1130 * @parent_realize: The parent class' realize handler. 1131 * @parent_phases: The parent class' reset phase handlers. 1132 * 1133 * An ARM CPU model. 1134 */ 1135 struct ARMCPUClass { 1136 CPUClass parent_class; 1137 1138 const ARMCPUInfo *info; 1139 DeviceRealize parent_realize; 1140 ResettablePhases parent_phases; 1141 }; 1142 1143 struct AArch64CPUClass { 1144 ARMCPUClass parent_class; 1145 }; 1146 1147 /* Callback functions for the generic timer's timers. */ 1148 void arm_gt_ptimer_cb(void *opaque); 1149 void arm_gt_vtimer_cb(void *opaque); 1150 void arm_gt_htimer_cb(void *opaque); 1151 void arm_gt_stimer_cb(void *opaque); 1152 void arm_gt_hvtimer_cb(void *opaque); 1153 1154 unsigned int gt_cntfrq_period_ns(ARMCPU *cpu); 1155 void gt_rme_post_el_change(ARMCPU *cpu, void *opaque); 1156 1157 void arm_cpu_post_init(Object *obj); 1158 1159 #define ARM_AFF0_SHIFT 0 1160 #define ARM_AFF0_MASK (0xFFULL << ARM_AFF0_SHIFT) 1161 #define ARM_AFF1_SHIFT 8 1162 #define ARM_AFF1_MASK (0xFFULL << ARM_AFF1_SHIFT) 1163 #define ARM_AFF2_SHIFT 16 1164 #define ARM_AFF2_MASK (0xFFULL << ARM_AFF2_SHIFT) 1165 #define ARM_AFF3_SHIFT 32 1166 #define ARM_AFF3_MASK (0xFFULL << ARM_AFF3_SHIFT) 1167 #define ARM_DEFAULT_CPUS_PER_CLUSTER 8 1168 1169 #define ARM32_AFFINITY_MASK (ARM_AFF0_MASK | ARM_AFF1_MASK | ARM_AFF2_MASK) 1170 #define ARM64_AFFINITY_MASK \ 1171 (ARM_AFF0_MASK | ARM_AFF1_MASK | ARM_AFF2_MASK | ARM_AFF3_MASK) 1172 #define ARM64_AFFINITY_INVALID (~ARM64_AFFINITY_MASK) 1173 1174 uint64_t arm_cpu_mp_affinity(int idx, uint8_t clustersz); 1175 1176 #ifndef CONFIG_USER_ONLY 1177 extern const VMStateDescription vmstate_arm_cpu; 1178 1179 void arm_cpu_do_interrupt(CPUState *cpu); 1180 void arm_v7m_cpu_do_interrupt(CPUState *cpu); 1181 1182 hwaddr arm_cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr, 1183 MemTxAttrs *attrs); 1184 #endif /* !CONFIG_USER_ONLY */ 1185 1186 int arm_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); 1187 int arm_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); 1188 1189 /* Returns the dynamically generated XML for the gdb stub. 1190 * Returns a pointer to the XML contents for the specified XML file or NULL 1191 * if the XML name doesn't match the predefined one. 1192 */ 1193 const char *arm_gdb_get_dynamic_xml(CPUState *cpu, const char *xmlname); 1194 1195 int arm_cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cs, 1196 int cpuid, DumpState *s); 1197 int arm_cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cs, 1198 int cpuid, DumpState *s); 1199 1200 /** 1201 * arm_emulate_firmware_reset: Emulate firmware CPU reset handling 1202 * @cpu: CPU (which must have been freshly reset) 1203 * @target_el: exception level to put the CPU into 1204 * @secure: whether to put the CPU in secure state 1205 * 1206 * When QEMU is directly running a guest kernel at a lower level than 1207 * EL3 it implicitly emulates some aspects of the guest firmware. 1208 * This includes that on reset we need to configure the parts of the 1209 * CPU corresponding to EL3 so that the real guest code can run at its 1210 * lower exception level. This function does that post-reset CPU setup, 1211 * for when we do direct boot of a guest kernel, and for when we 1212 * emulate PSCI and similar firmware interfaces starting a CPU at a 1213 * lower exception level. 1214 * 1215 * @target_el must be an EL implemented by the CPU between 1 and 3. 1216 * We do not support dropping into a Secure EL other than 3. 1217 * 1218 * It is the responsibility of the caller to call arm_rebuild_hflags(). 1219 */ 1220 void arm_emulate_firmware_reset(CPUState *cpustate, int target_el); 1221 1222 #ifdef TARGET_AARCH64 1223 int aarch64_cpu_gdb_read_register(CPUState *cpu, GByteArray *buf, int reg); 1224 int aarch64_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg); 1225 void aarch64_sve_narrow_vq(CPUARMState *env, unsigned vq); 1226 void aarch64_sve_change_el(CPUARMState *env, int old_el, 1227 int new_el, bool el0_a64); 1228 void aarch64_set_svcr(CPUARMState *env, uint64_t new, uint64_t mask); 1229 1230 /* 1231 * SVE registers are encoded in KVM's memory in an endianness-invariant format. 1232 * The byte at offset i from the start of the in-memory representation contains 1233 * the bits [(7 + 8 * i) : (8 * i)] of the register value. As this means the 1234 * lowest offsets are stored in the lowest memory addresses, then that nearly 1235 * matches QEMU's representation, which is to use an array of host-endian 1236 * uint64_t's, where the lower offsets are at the lower indices. To complete 1237 * the translation we just need to byte swap the uint64_t's on big-endian hosts. 1238 */ 1239 static inline uint64_t *sve_bswap64(uint64_t *dst, uint64_t *src, int nr) 1240 { 1241 #if HOST_BIG_ENDIAN 1242 int i; 1243 1244 for (i = 0; i < nr; ++i) { 1245 dst[i] = bswap64(src[i]); 1246 } 1247 1248 return dst; 1249 #else 1250 return src; 1251 #endif 1252 } 1253 1254 #else 1255 static inline void aarch64_sve_narrow_vq(CPUARMState *env, unsigned vq) { } 1256 static inline void aarch64_sve_change_el(CPUARMState *env, int o, 1257 int n, bool a) 1258 { } 1259 #endif 1260 1261 void aarch64_sync_32_to_64(CPUARMState *env); 1262 void aarch64_sync_64_to_32(CPUARMState *env); 1263 1264 int fp_exception_el(CPUARMState *env, int cur_el); 1265 int sve_exception_el(CPUARMState *env, int cur_el); 1266 int sme_exception_el(CPUARMState *env, int cur_el); 1267 1268 /** 1269 * sve_vqm1_for_el_sm: 1270 * @env: CPUARMState 1271 * @el: exception level 1272 * @sm: streaming mode 1273 * 1274 * Compute the current vector length for @el & @sm, in units of 1275 * Quadwords Minus 1 -- the same scale used for ZCR_ELx.LEN. 1276 * If @sm, compute for SVL, otherwise NVL. 1277 */ 1278 uint32_t sve_vqm1_for_el_sm(CPUARMState *env, int el, bool sm); 1279 1280 /* Likewise, but using @sm = PSTATE.SM. */ 1281 uint32_t sve_vqm1_for_el(CPUARMState *env, int el); 1282 1283 static inline bool is_a64(CPUARMState *env) 1284 { 1285 return env->aarch64; 1286 } 1287 1288 /** 1289 * pmu_op_start/finish 1290 * @env: CPUARMState 1291 * 1292 * Convert all PMU counters between their delta form (the typical mode when 1293 * they are enabled) and the guest-visible values. These two calls must 1294 * surround any action which might affect the counters. 1295 */ 1296 void pmu_op_start(CPUARMState *env); 1297 void pmu_op_finish(CPUARMState *env); 1298 1299 /* 1300 * Called when a PMU counter is due to overflow 1301 */ 1302 void arm_pmu_timer_cb(void *opaque); 1303 1304 /** 1305 * Functions to register as EL change hooks for PMU mode filtering 1306 */ 1307 void pmu_pre_el_change(ARMCPU *cpu, void *ignored); 1308 void pmu_post_el_change(ARMCPU *cpu, void *ignored); 1309 1310 /* 1311 * pmu_init 1312 * @cpu: ARMCPU 1313 * 1314 * Initialize the CPU's PMCEID[01]_EL0 registers and associated internal state 1315 * for the current configuration 1316 */ 1317 void pmu_init(ARMCPU *cpu); 1318 1319 /* SCTLR bit meanings. Several bits have been reused in newer 1320 * versions of the architecture; in that case we define constants 1321 * for both old and new bit meanings. Code which tests against those 1322 * bits should probably check or otherwise arrange that the CPU 1323 * is the architectural version it expects. 1324 */ 1325 #define SCTLR_M (1U << 0) 1326 #define SCTLR_A (1U << 1) 1327 #define SCTLR_C (1U << 2) 1328 #define SCTLR_W (1U << 3) /* up to v6; RAO in v7 */ 1329 #define SCTLR_nTLSMD_32 (1U << 3) /* v8.2-LSMAOC, AArch32 only */ 1330 #define SCTLR_SA (1U << 3) /* AArch64 only */ 1331 #define SCTLR_P (1U << 4) /* up to v5; RAO in v6 and v7 */ 1332 #define SCTLR_LSMAOE_32 (1U << 4) /* v8.2-LSMAOC, AArch32 only */ 1333 #define SCTLR_SA0 (1U << 4) /* v8 onward, AArch64 only */ 1334 #define SCTLR_D (1U << 5) /* up to v5; RAO in v6 */ 1335 #define SCTLR_CP15BEN (1U << 5) /* v7 onward */ 1336 #define SCTLR_L (1U << 6) /* up to v5; RAO in v6 and v7; RAZ in v8 */ 1337 #define SCTLR_nAA (1U << 6) /* when FEAT_LSE2 is implemented */ 1338 #define SCTLR_B (1U << 7) /* up to v6; RAZ in v7 */ 1339 #define SCTLR_ITD (1U << 7) /* v8 onward */ 1340 #define SCTLR_S (1U << 8) /* up to v6; RAZ in v7 */ 1341 #define SCTLR_SED (1U << 8) /* v8 onward */ 1342 #define SCTLR_R (1U << 9) /* up to v6; RAZ in v7 */ 1343 #define SCTLR_UMA (1U << 9) /* v8 onward, AArch64 only */ 1344 #define SCTLR_F (1U << 10) /* up to v6 */ 1345 #define SCTLR_SW (1U << 10) /* v7 */ 1346 #define SCTLR_EnRCTX (1U << 10) /* in v8.0-PredInv */ 1347 #define SCTLR_Z (1U << 11) /* in v7, RES1 in v8 */ 1348 #define SCTLR_EOS (1U << 11) /* v8.5-ExS */ 1349 #define SCTLR_I (1U << 12) 1350 #define SCTLR_V (1U << 13) /* AArch32 only */ 1351 #define SCTLR_EnDB (1U << 13) /* v8.3, AArch64 only */ 1352 #define SCTLR_RR (1U << 14) /* up to v7 */ 1353 #define SCTLR_DZE (1U << 14) /* v8 onward, AArch64 only */ 1354 #define SCTLR_L4 (1U << 15) /* up to v6; RAZ in v7 */ 1355 #define SCTLR_UCT (1U << 15) /* v8 onward, AArch64 only */ 1356 #define SCTLR_DT (1U << 16) /* up to ??, RAO in v6 and v7 */ 1357 #define SCTLR_nTWI (1U << 16) /* v8 onward */ 1358 #define SCTLR_HA (1U << 17) /* up to v7, RES0 in v8 */ 1359 #define SCTLR_BR (1U << 17) /* PMSA only */ 1360 #define SCTLR_IT (1U << 18) /* up to ??, RAO in v6 and v7 */ 1361 #define SCTLR_nTWE (1U << 18) /* v8 onward */ 1362 #define SCTLR_WXN (1U << 19) 1363 #define SCTLR_ST (1U << 20) /* up to ??, RAZ in v6 */ 1364 #define SCTLR_UWXN (1U << 20) /* v7 onward, AArch32 only */ 1365 #define SCTLR_TSCXT (1U << 20) /* FEAT_CSV2_1p2, AArch64 only */ 1366 #define SCTLR_FI (1U << 21) /* up to v7, v8 RES0 */ 1367 #define SCTLR_IESB (1U << 21) /* v8.2-IESB, AArch64 only */ 1368 #define SCTLR_U (1U << 22) /* up to v6, RAO in v7 */ 1369 #define SCTLR_EIS (1U << 22) /* v8.5-ExS */ 1370 #define SCTLR_XP (1U << 23) /* up to v6; v7 onward RAO */ 1371 #define SCTLR_SPAN (1U << 23) /* v8.1-PAN */ 1372 #define SCTLR_VE (1U << 24) /* up to v7 */ 1373 #define SCTLR_E0E (1U << 24) /* v8 onward, AArch64 only */ 1374 #define SCTLR_EE (1U << 25) 1375 #define SCTLR_L2 (1U << 26) /* up to v6, RAZ in v7 */ 1376 #define SCTLR_UCI (1U << 26) /* v8 onward, AArch64 only */ 1377 #define SCTLR_NMFI (1U << 27) /* up to v7, RAZ in v7VE and v8 */ 1378 #define SCTLR_EnDA (1U << 27) /* v8.3, AArch64 only */ 1379 #define SCTLR_TRE (1U << 28) /* AArch32 only */ 1380 #define SCTLR_nTLSMD_64 (1U << 28) /* v8.2-LSMAOC, AArch64 only */ 1381 #define SCTLR_AFE (1U << 29) /* AArch32 only */ 1382 #define SCTLR_LSMAOE_64 (1U << 29) /* v8.2-LSMAOC, AArch64 only */ 1383 #define SCTLR_TE (1U << 30) /* AArch32 only */ 1384 #define SCTLR_EnIB (1U << 30) /* v8.3, AArch64 only */ 1385 #define SCTLR_EnIA (1U << 31) /* v8.3, AArch64 only */ 1386 #define SCTLR_DSSBS_32 (1U << 31) /* v8.5, AArch32 only */ 1387 #define SCTLR_MSCEN (1ULL << 33) /* FEAT_MOPS */ 1388 #define SCTLR_BT0 (1ULL << 35) /* v8.5-BTI */ 1389 #define SCTLR_BT1 (1ULL << 36) /* v8.5-BTI */ 1390 #define SCTLR_ITFSB (1ULL << 37) /* v8.5-MemTag */ 1391 #define SCTLR_TCF0 (3ULL << 38) /* v8.5-MemTag */ 1392 #define SCTLR_TCF (3ULL << 40) /* v8.5-MemTag */ 1393 #define SCTLR_ATA0 (1ULL << 42) /* v8.5-MemTag */ 1394 #define SCTLR_ATA (1ULL << 43) /* v8.5-MemTag */ 1395 #define SCTLR_DSSBS_64 (1ULL << 44) /* v8.5, AArch64 only */ 1396 #define SCTLR_TWEDEn (1ULL << 45) /* FEAT_TWED */ 1397 #define SCTLR_TWEDEL MAKE_64_MASK(46, 4) /* FEAT_TWED */ 1398 #define SCTLR_TMT0 (1ULL << 50) /* FEAT_TME */ 1399 #define SCTLR_TMT (1ULL << 51) /* FEAT_TME */ 1400 #define SCTLR_TME0 (1ULL << 52) /* FEAT_TME */ 1401 #define SCTLR_TME (1ULL << 53) /* FEAT_TME */ 1402 #define SCTLR_EnASR (1ULL << 54) /* FEAT_LS64_V */ 1403 #define SCTLR_EnAS0 (1ULL << 55) /* FEAT_LS64_ACCDATA */ 1404 #define SCTLR_EnALS (1ULL << 56) /* FEAT_LS64 */ 1405 #define SCTLR_EPAN (1ULL << 57) /* FEAT_PAN3 */ 1406 #define SCTLR_EnTP2 (1ULL << 60) /* FEAT_SME */ 1407 #define SCTLR_NMI (1ULL << 61) /* FEAT_NMI */ 1408 #define SCTLR_SPINTMASK (1ULL << 62) /* FEAT_NMI */ 1409 #define SCTLR_TIDCP (1ULL << 63) /* FEAT_TIDCP1 */ 1410 1411 /* Bit definitions for CPACR (AArch32 only) */ 1412 FIELD(CPACR, CP10, 20, 2) 1413 FIELD(CPACR, CP11, 22, 2) 1414 FIELD(CPACR, TRCDIS, 28, 1) /* matches CPACR_EL1.TTA */ 1415 FIELD(CPACR, D32DIS, 30, 1) /* up to v7; RAZ in v8 */ 1416 FIELD(CPACR, ASEDIS, 31, 1) 1417 1418 /* Bit definitions for CPACR_EL1 (AArch64 only) */ 1419 FIELD(CPACR_EL1, ZEN, 16, 2) 1420 FIELD(CPACR_EL1, FPEN, 20, 2) 1421 FIELD(CPACR_EL1, SMEN, 24, 2) 1422 FIELD(CPACR_EL1, TTA, 28, 1) /* matches CPACR.TRCDIS */ 1423 1424 /* Bit definitions for HCPTR (AArch32 only) */ 1425 FIELD(HCPTR, TCP10, 10, 1) 1426 FIELD(HCPTR, TCP11, 11, 1) 1427 FIELD(HCPTR, TASE, 15, 1) 1428 FIELD(HCPTR, TTA, 20, 1) 1429 FIELD(HCPTR, TAM, 30, 1) /* matches CPTR_EL2.TAM */ 1430 FIELD(HCPTR, TCPAC, 31, 1) /* matches CPTR_EL2.TCPAC */ 1431 1432 /* Bit definitions for CPTR_EL2 (AArch64 only) */ 1433 FIELD(CPTR_EL2, TZ, 8, 1) /* !E2H */ 1434 FIELD(CPTR_EL2, TFP, 10, 1) /* !E2H, matches HCPTR.TCP10 */ 1435 FIELD(CPTR_EL2, TSM, 12, 1) /* !E2H */ 1436 FIELD(CPTR_EL2, ZEN, 16, 2) /* E2H */ 1437 FIELD(CPTR_EL2, FPEN, 20, 2) /* E2H */ 1438 FIELD(CPTR_EL2, SMEN, 24, 2) /* E2H */ 1439 FIELD(CPTR_EL2, TTA, 28, 1) 1440 FIELD(CPTR_EL2, TAM, 30, 1) /* matches HCPTR.TAM */ 1441 FIELD(CPTR_EL2, TCPAC, 31, 1) /* matches HCPTR.TCPAC */ 1442 1443 /* Bit definitions for CPTR_EL3 (AArch64 only) */ 1444 FIELD(CPTR_EL3, EZ, 8, 1) 1445 FIELD(CPTR_EL3, TFP, 10, 1) 1446 FIELD(CPTR_EL3, ESM, 12, 1) 1447 FIELD(CPTR_EL3, TTA, 20, 1) 1448 FIELD(CPTR_EL3, TAM, 30, 1) 1449 FIELD(CPTR_EL3, TCPAC, 31, 1) 1450 1451 #define MDCR_MTPME (1U << 28) 1452 #define MDCR_TDCC (1U << 27) 1453 #define MDCR_HLP (1U << 26) /* MDCR_EL2 */ 1454 #define MDCR_SCCD (1U << 23) /* MDCR_EL3 */ 1455 #define MDCR_HCCD (1U << 23) /* MDCR_EL2 */ 1456 #define MDCR_EPMAD (1U << 21) 1457 #define MDCR_EDAD (1U << 20) 1458 #define MDCR_TTRF (1U << 19) 1459 #define MDCR_STE (1U << 18) /* MDCR_EL3 */ 1460 #define MDCR_SPME (1U << 17) /* MDCR_EL3 */ 1461 #define MDCR_HPMD (1U << 17) /* MDCR_EL2 */ 1462 #define MDCR_SDD (1U << 16) 1463 #define MDCR_SPD (3U << 14) 1464 #define MDCR_TDRA (1U << 11) 1465 #define MDCR_TDOSA (1U << 10) 1466 #define MDCR_TDA (1U << 9) 1467 #define MDCR_TDE (1U << 8) 1468 #define MDCR_HPME (1U << 7) 1469 #define MDCR_TPM (1U << 6) 1470 #define MDCR_TPMCR (1U << 5) 1471 #define MDCR_HPMN (0x1fU) 1472 1473 /* Not all of the MDCR_EL3 bits are present in the 32-bit SDCR */ 1474 #define SDCR_VALID_MASK (MDCR_MTPME | MDCR_TDCC | MDCR_SCCD | \ 1475 MDCR_EPMAD | MDCR_EDAD | MDCR_TTRF | \ 1476 MDCR_STE | MDCR_SPME | MDCR_SPD) 1477 1478 #define CPSR_M (0x1fU) 1479 #define CPSR_T (1U << 5) 1480 #define CPSR_F (1U << 6) 1481 #define CPSR_I (1U << 7) 1482 #define CPSR_A (1U << 8) 1483 #define CPSR_E (1U << 9) 1484 #define CPSR_IT_2_7 (0xfc00U) 1485 #define CPSR_GE (0xfU << 16) 1486 #define CPSR_IL (1U << 20) 1487 #define CPSR_DIT (1U << 21) 1488 #define CPSR_PAN (1U << 22) 1489 #define CPSR_SSBS (1U << 23) 1490 #define CPSR_J (1U << 24) 1491 #define CPSR_IT_0_1 (3U << 25) 1492 #define CPSR_Q (1U << 27) 1493 #define CPSR_V (1U << 28) 1494 #define CPSR_C (1U << 29) 1495 #define CPSR_Z (1U << 30) 1496 #define CPSR_N (1U << 31) 1497 #define CPSR_NZCV (CPSR_N | CPSR_Z | CPSR_C | CPSR_V) 1498 #define CPSR_AIF (CPSR_A | CPSR_I | CPSR_F) 1499 1500 #define CPSR_IT (CPSR_IT_0_1 | CPSR_IT_2_7) 1501 #define CACHED_CPSR_BITS (CPSR_T | CPSR_AIF | CPSR_GE | CPSR_IT | CPSR_Q \ 1502 | CPSR_NZCV) 1503 /* Bits writable in user mode. */ 1504 #define CPSR_USER (CPSR_NZCV | CPSR_Q | CPSR_GE | CPSR_E) 1505 /* Execution state bits. MRS read as zero, MSR writes ignored. */ 1506 #define CPSR_EXEC (CPSR_T | CPSR_IT | CPSR_J | CPSR_IL) 1507 1508 /* Bit definitions for M profile XPSR. Most are the same as CPSR. */ 1509 #define XPSR_EXCP 0x1ffU 1510 #define XPSR_SPREALIGN (1U << 9) /* Only set in exception stack frames */ 1511 #define XPSR_IT_2_7 CPSR_IT_2_7 1512 #define XPSR_GE CPSR_GE 1513 #define XPSR_SFPA (1U << 20) /* Only set in exception stack frames */ 1514 #define XPSR_T (1U << 24) /* Not the same as CPSR_T ! */ 1515 #define XPSR_IT_0_1 CPSR_IT_0_1 1516 #define XPSR_Q CPSR_Q 1517 #define XPSR_V CPSR_V 1518 #define XPSR_C CPSR_C 1519 #define XPSR_Z CPSR_Z 1520 #define XPSR_N CPSR_N 1521 #define XPSR_NZCV CPSR_NZCV 1522 #define XPSR_IT CPSR_IT 1523 1524 #define TTBCR_N (7U << 0) /* TTBCR.EAE==0 */ 1525 #define TTBCR_T0SZ (7U << 0) /* TTBCR.EAE==1 */ 1526 #define TTBCR_PD0 (1U << 4) 1527 #define TTBCR_PD1 (1U << 5) 1528 #define TTBCR_EPD0 (1U << 7) 1529 #define TTBCR_IRGN0 (3U << 8) 1530 #define TTBCR_ORGN0 (3U << 10) 1531 #define TTBCR_SH0 (3U << 12) 1532 #define TTBCR_T1SZ (3U << 16) 1533 #define TTBCR_A1 (1U << 22) 1534 #define TTBCR_EPD1 (1U << 23) 1535 #define TTBCR_IRGN1 (3U << 24) 1536 #define TTBCR_ORGN1 (3U << 26) 1537 #define TTBCR_SH1 (1U << 28) 1538 #define TTBCR_EAE (1U << 31) 1539 1540 FIELD(VTCR, T0SZ, 0, 6) 1541 FIELD(VTCR, SL0, 6, 2) 1542 FIELD(VTCR, IRGN0, 8, 2) 1543 FIELD(VTCR, ORGN0, 10, 2) 1544 FIELD(VTCR, SH0, 12, 2) 1545 FIELD(VTCR, TG0, 14, 2) 1546 FIELD(VTCR, PS, 16, 3) 1547 FIELD(VTCR, VS, 19, 1) 1548 FIELD(VTCR, HA, 21, 1) 1549 FIELD(VTCR, HD, 22, 1) 1550 FIELD(VTCR, HWU59, 25, 1) 1551 FIELD(VTCR, HWU60, 26, 1) 1552 FIELD(VTCR, HWU61, 27, 1) 1553 FIELD(VTCR, HWU62, 28, 1) 1554 FIELD(VTCR, NSW, 29, 1) 1555 FIELD(VTCR, NSA, 30, 1) 1556 FIELD(VTCR, DS, 32, 1) 1557 FIELD(VTCR, SL2, 33, 1) 1558 1559 /* Bit definitions for ARMv8 SPSR (PSTATE) format. 1560 * Only these are valid when in AArch64 mode; in 1561 * AArch32 mode SPSRs are basically CPSR-format. 1562 */ 1563 #define PSTATE_SP (1U) 1564 #define PSTATE_M (0xFU) 1565 #define PSTATE_nRW (1U << 4) 1566 #define PSTATE_F (1U << 6) 1567 #define PSTATE_I (1U << 7) 1568 #define PSTATE_A (1U << 8) 1569 #define PSTATE_D (1U << 9) 1570 #define PSTATE_BTYPE (3U << 10) 1571 #define PSTATE_SSBS (1U << 12) 1572 #define PSTATE_IL (1U << 20) 1573 #define PSTATE_SS (1U << 21) 1574 #define PSTATE_PAN (1U << 22) 1575 #define PSTATE_UAO (1U << 23) 1576 #define PSTATE_DIT (1U << 24) 1577 #define PSTATE_TCO (1U << 25) 1578 #define PSTATE_V (1U << 28) 1579 #define PSTATE_C (1U << 29) 1580 #define PSTATE_Z (1U << 30) 1581 #define PSTATE_N (1U << 31) 1582 #define PSTATE_NZCV (PSTATE_N | PSTATE_Z | PSTATE_C | PSTATE_V) 1583 #define PSTATE_DAIF (PSTATE_D | PSTATE_A | PSTATE_I | PSTATE_F) 1584 #define CACHED_PSTATE_BITS (PSTATE_NZCV | PSTATE_DAIF | PSTATE_BTYPE) 1585 /* Mode values for AArch64 */ 1586 #define PSTATE_MODE_EL3h 13 1587 #define PSTATE_MODE_EL3t 12 1588 #define PSTATE_MODE_EL2h 9 1589 #define PSTATE_MODE_EL2t 8 1590 #define PSTATE_MODE_EL1h 5 1591 #define PSTATE_MODE_EL1t 4 1592 #define PSTATE_MODE_EL0t 0 1593 1594 /* PSTATE bits that are accessed via SVCR and not stored in SPSR_ELx. */ 1595 FIELD(SVCR, SM, 0, 1) 1596 FIELD(SVCR, ZA, 1, 1) 1597 1598 /* Fields for SMCR_ELx. */ 1599 FIELD(SMCR, LEN, 0, 4) 1600 FIELD(SMCR, FA64, 31, 1) 1601 1602 /* Write a new value to v7m.exception, thus transitioning into or out 1603 * of Handler mode; this may result in a change of active stack pointer. 1604 */ 1605 void write_v7m_exception(CPUARMState *env, uint32_t new_exc); 1606 1607 /* Map EL and handler into a PSTATE_MODE. */ 1608 static inline unsigned int aarch64_pstate_mode(unsigned int el, bool handler) 1609 { 1610 return (el << 2) | handler; 1611 } 1612 1613 /* Return the current PSTATE value. For the moment we don't support 32<->64 bit 1614 * interprocessing, so we don't attempt to sync with the cpsr state used by 1615 * the 32 bit decoder. 1616 */ 1617 static inline uint32_t pstate_read(CPUARMState *env) 1618 { 1619 int ZF; 1620 1621 ZF = (env->ZF == 0); 1622 return (env->NF & 0x80000000) | (ZF << 30) 1623 | (env->CF << 29) | ((env->VF & 0x80000000) >> 3) 1624 | env->pstate | env->daif | (env->btype << 10); 1625 } 1626 1627 static inline void pstate_write(CPUARMState *env, uint32_t val) 1628 { 1629 env->ZF = (~val) & PSTATE_Z; 1630 env->NF = val; 1631 env->CF = (val >> 29) & 1; 1632 env->VF = (val << 3) & 0x80000000; 1633 env->daif = val & PSTATE_DAIF; 1634 env->btype = (val >> 10) & 3; 1635 env->pstate = val & ~CACHED_PSTATE_BITS; 1636 } 1637 1638 /* Return the current CPSR value. */ 1639 uint32_t cpsr_read(CPUARMState *env); 1640 1641 typedef enum CPSRWriteType { 1642 CPSRWriteByInstr = 0, /* from guest MSR or CPS */ 1643 CPSRWriteExceptionReturn = 1, /* from guest exception return insn */ 1644 CPSRWriteRaw = 2, 1645 /* trust values, no reg bank switch, no hflags rebuild */ 1646 CPSRWriteByGDBStub = 3, /* from the GDB stub */ 1647 } CPSRWriteType; 1648 1649 /* 1650 * Set the CPSR. Note that some bits of mask must be all-set or all-clear. 1651 * This will do an arm_rebuild_hflags() if any of the bits in @mask 1652 * correspond to TB flags bits cached in the hflags, unless @write_type 1653 * is CPSRWriteRaw. 1654 */ 1655 void cpsr_write(CPUARMState *env, uint32_t val, uint32_t mask, 1656 CPSRWriteType write_type); 1657 1658 /* Return the current xPSR value. */ 1659 static inline uint32_t xpsr_read(CPUARMState *env) 1660 { 1661 int ZF; 1662 ZF = (env->ZF == 0); 1663 return (env->NF & 0x80000000) | (ZF << 30) 1664 | (env->CF << 29) | ((env->VF & 0x80000000) >> 3) | (env->QF << 27) 1665 | (env->thumb << 24) | ((env->condexec_bits & 3) << 25) 1666 | ((env->condexec_bits & 0xfc) << 8) 1667 | (env->GE << 16) 1668 | env->v7m.exception; 1669 } 1670 1671 /* Set the xPSR. Note that some bits of mask must be all-set or all-clear. */ 1672 static inline void xpsr_write(CPUARMState *env, uint32_t val, uint32_t mask) 1673 { 1674 if (mask & XPSR_NZCV) { 1675 env->ZF = (~val) & XPSR_Z; 1676 env->NF = val; 1677 env->CF = (val >> 29) & 1; 1678 env->VF = (val << 3) & 0x80000000; 1679 } 1680 if (mask & XPSR_Q) { 1681 env->QF = ((val & XPSR_Q) != 0); 1682 } 1683 if (mask & XPSR_GE) { 1684 env->GE = (val & XPSR_GE) >> 16; 1685 } 1686 #ifndef CONFIG_USER_ONLY 1687 if (mask & XPSR_T) { 1688 env->thumb = ((val & XPSR_T) != 0); 1689 } 1690 if (mask & XPSR_IT_0_1) { 1691 env->condexec_bits &= ~3; 1692 env->condexec_bits |= (val >> 25) & 3; 1693 } 1694 if (mask & XPSR_IT_2_7) { 1695 env->condexec_bits &= 3; 1696 env->condexec_bits |= (val >> 8) & 0xfc; 1697 } 1698 if (mask & XPSR_EXCP) { 1699 /* Note that this only happens on exception exit */ 1700 write_v7m_exception(env, val & XPSR_EXCP); 1701 } 1702 #endif 1703 } 1704 1705 #define HCR_VM (1ULL << 0) 1706 #define HCR_SWIO (1ULL << 1) 1707 #define HCR_PTW (1ULL << 2) 1708 #define HCR_FMO (1ULL << 3) 1709 #define HCR_IMO (1ULL << 4) 1710 #define HCR_AMO (1ULL << 5) 1711 #define HCR_VF (1ULL << 6) 1712 #define HCR_VI (1ULL << 7) 1713 #define HCR_VSE (1ULL << 8) 1714 #define HCR_FB (1ULL << 9) 1715 #define HCR_BSU_MASK (3ULL << 10) 1716 #define HCR_DC (1ULL << 12) 1717 #define HCR_TWI (1ULL << 13) 1718 #define HCR_TWE (1ULL << 14) 1719 #define HCR_TID0 (1ULL << 15) 1720 #define HCR_TID1 (1ULL << 16) 1721 #define HCR_TID2 (1ULL << 17) 1722 #define HCR_TID3 (1ULL << 18) 1723 #define HCR_TSC (1ULL << 19) 1724 #define HCR_TIDCP (1ULL << 20) 1725 #define HCR_TACR (1ULL << 21) 1726 #define HCR_TSW (1ULL << 22) 1727 #define HCR_TPCP (1ULL << 23) 1728 #define HCR_TPU (1ULL << 24) 1729 #define HCR_TTLB (1ULL << 25) 1730 #define HCR_TVM (1ULL << 26) 1731 #define HCR_TGE (1ULL << 27) 1732 #define HCR_TDZ (1ULL << 28) 1733 #define HCR_HCD (1ULL << 29) 1734 #define HCR_TRVM (1ULL << 30) 1735 #define HCR_RW (1ULL << 31) 1736 #define HCR_CD (1ULL << 32) 1737 #define HCR_ID (1ULL << 33) 1738 #define HCR_E2H (1ULL << 34) 1739 #define HCR_TLOR (1ULL << 35) 1740 #define HCR_TERR (1ULL << 36) 1741 #define HCR_TEA (1ULL << 37) 1742 #define HCR_MIOCNCE (1ULL << 38) 1743 #define HCR_TME (1ULL << 39) 1744 #define HCR_APK (1ULL << 40) 1745 #define HCR_API (1ULL << 41) 1746 #define HCR_NV (1ULL << 42) 1747 #define HCR_NV1 (1ULL << 43) 1748 #define HCR_AT (1ULL << 44) 1749 #define HCR_NV2 (1ULL << 45) 1750 #define HCR_FWB (1ULL << 46) 1751 #define HCR_FIEN (1ULL << 47) 1752 #define HCR_GPF (1ULL << 48) 1753 #define HCR_TID4 (1ULL << 49) 1754 #define HCR_TICAB (1ULL << 50) 1755 #define HCR_AMVOFFEN (1ULL << 51) 1756 #define HCR_TOCU (1ULL << 52) 1757 #define HCR_ENSCXT (1ULL << 53) 1758 #define HCR_TTLBIS (1ULL << 54) 1759 #define HCR_TTLBOS (1ULL << 55) 1760 #define HCR_ATA (1ULL << 56) 1761 #define HCR_DCT (1ULL << 57) 1762 #define HCR_TID5 (1ULL << 58) 1763 #define HCR_TWEDEN (1ULL << 59) 1764 #define HCR_TWEDEL MAKE_64BIT_MASK(60, 4) 1765 1766 #define HCRX_ENAS0 (1ULL << 0) 1767 #define HCRX_ENALS (1ULL << 1) 1768 #define HCRX_ENASR (1ULL << 2) 1769 #define HCRX_FNXS (1ULL << 3) 1770 #define HCRX_FGTNXS (1ULL << 4) 1771 #define HCRX_SMPME (1ULL << 5) 1772 #define HCRX_TALLINT (1ULL << 6) 1773 #define HCRX_VINMI (1ULL << 7) 1774 #define HCRX_VFNMI (1ULL << 8) 1775 #define HCRX_CMOW (1ULL << 9) 1776 #define HCRX_MCE2 (1ULL << 10) 1777 #define HCRX_MSCEN (1ULL << 11) 1778 1779 #define HPFAR_NS (1ULL << 63) 1780 1781 #define SCR_NS (1ULL << 0) 1782 #define SCR_IRQ (1ULL << 1) 1783 #define SCR_FIQ (1ULL << 2) 1784 #define SCR_EA (1ULL << 3) 1785 #define SCR_FW (1ULL << 4) 1786 #define SCR_AW (1ULL << 5) 1787 #define SCR_NET (1ULL << 6) 1788 #define SCR_SMD (1ULL << 7) 1789 #define SCR_HCE (1ULL << 8) 1790 #define SCR_SIF (1ULL << 9) 1791 #define SCR_RW (1ULL << 10) 1792 #define SCR_ST (1ULL << 11) 1793 #define SCR_TWI (1ULL << 12) 1794 #define SCR_TWE (1ULL << 13) 1795 #define SCR_TLOR (1ULL << 14) 1796 #define SCR_TERR (1ULL << 15) 1797 #define SCR_APK (1ULL << 16) 1798 #define SCR_API (1ULL << 17) 1799 #define SCR_EEL2 (1ULL << 18) 1800 #define SCR_EASE (1ULL << 19) 1801 #define SCR_NMEA (1ULL << 20) 1802 #define SCR_FIEN (1ULL << 21) 1803 #define SCR_ENSCXT (1ULL << 25) 1804 #define SCR_ATA (1ULL << 26) 1805 #define SCR_FGTEN (1ULL << 27) 1806 #define SCR_ECVEN (1ULL << 28) 1807 #define SCR_TWEDEN (1ULL << 29) 1808 #define SCR_TWEDEL MAKE_64BIT_MASK(30, 4) 1809 #define SCR_TME (1ULL << 34) 1810 #define SCR_AMVOFFEN (1ULL << 35) 1811 #define SCR_ENAS0 (1ULL << 36) 1812 #define SCR_ADEN (1ULL << 37) 1813 #define SCR_HXEN (1ULL << 38) 1814 #define SCR_TRNDR (1ULL << 40) 1815 #define SCR_ENTP2 (1ULL << 41) 1816 #define SCR_GPF (1ULL << 48) 1817 #define SCR_NSE (1ULL << 62) 1818 1819 #define HSTR_TTEE (1 << 16) 1820 #define HSTR_TJDBX (1 << 17) 1821 1822 #define CNTHCTL_CNTVMASK (1 << 18) 1823 #define CNTHCTL_CNTPMASK (1 << 19) 1824 1825 /* Return the current FPSCR value. */ 1826 uint32_t vfp_get_fpscr(CPUARMState *env); 1827 void vfp_set_fpscr(CPUARMState *env, uint32_t val); 1828 1829 /* FPCR, Floating Point Control Register 1830 * FPSR, Floating Poiht Status Register 1831 * 1832 * For A64 the FPSCR is split into two logically distinct registers, 1833 * FPCR and FPSR. However since they still use non-overlapping bits 1834 * we store the underlying state in fpscr and just mask on read/write. 1835 */ 1836 #define FPSR_MASK 0xf800009f 1837 #define FPCR_MASK 0x07ff9f00 1838 1839 #define FPCR_IOE (1 << 8) /* Invalid Operation exception trap enable */ 1840 #define FPCR_DZE (1 << 9) /* Divide by Zero exception trap enable */ 1841 #define FPCR_OFE (1 << 10) /* Overflow exception trap enable */ 1842 #define FPCR_UFE (1 << 11) /* Underflow exception trap enable */ 1843 #define FPCR_IXE (1 << 12) /* Inexact exception trap enable */ 1844 #define FPCR_IDE (1 << 15) /* Input Denormal exception trap enable */ 1845 #define FPCR_FZ16 (1 << 19) /* ARMv8.2+, FP16 flush-to-zero */ 1846 #define FPCR_RMODE_MASK (3 << 22) /* Rounding mode */ 1847 #define FPCR_FZ (1 << 24) /* Flush-to-zero enable bit */ 1848 #define FPCR_DN (1 << 25) /* Default NaN enable bit */ 1849 #define FPCR_AHP (1 << 26) /* Alternative half-precision */ 1850 #define FPCR_QC (1 << 27) /* Cumulative saturation bit */ 1851 #define FPCR_V (1 << 28) /* FP overflow flag */ 1852 #define FPCR_C (1 << 29) /* FP carry flag */ 1853 #define FPCR_Z (1 << 30) /* FP zero flag */ 1854 #define FPCR_N (1 << 31) /* FP negative flag */ 1855 1856 #define FPCR_LTPSIZE_SHIFT 16 /* LTPSIZE, M-profile only */ 1857 #define FPCR_LTPSIZE_MASK (7 << FPCR_LTPSIZE_SHIFT) 1858 #define FPCR_LTPSIZE_LENGTH 3 1859 1860 #define FPCR_NZCV_MASK (FPCR_N | FPCR_Z | FPCR_C | FPCR_V) 1861 #define FPCR_NZCVQC_MASK (FPCR_NZCV_MASK | FPCR_QC) 1862 1863 static inline uint32_t vfp_get_fpsr(CPUARMState *env) 1864 { 1865 return vfp_get_fpscr(env) & FPSR_MASK; 1866 } 1867 1868 static inline void vfp_set_fpsr(CPUARMState *env, uint32_t val) 1869 { 1870 uint32_t new_fpscr = (vfp_get_fpscr(env) & ~FPSR_MASK) | (val & FPSR_MASK); 1871 vfp_set_fpscr(env, new_fpscr); 1872 } 1873 1874 static inline uint32_t vfp_get_fpcr(CPUARMState *env) 1875 { 1876 return vfp_get_fpscr(env) & FPCR_MASK; 1877 } 1878 1879 static inline void vfp_set_fpcr(CPUARMState *env, uint32_t val) 1880 { 1881 uint32_t new_fpscr = (vfp_get_fpscr(env) & ~FPCR_MASK) | (val & FPCR_MASK); 1882 vfp_set_fpscr(env, new_fpscr); 1883 } 1884 1885 enum arm_cpu_mode { 1886 ARM_CPU_MODE_USR = 0x10, 1887 ARM_CPU_MODE_FIQ = 0x11, 1888 ARM_CPU_MODE_IRQ = 0x12, 1889 ARM_CPU_MODE_SVC = 0x13, 1890 ARM_CPU_MODE_MON = 0x16, 1891 ARM_CPU_MODE_ABT = 0x17, 1892 ARM_CPU_MODE_HYP = 0x1a, 1893 ARM_CPU_MODE_UND = 0x1b, 1894 ARM_CPU_MODE_SYS = 0x1f 1895 }; 1896 1897 /* VFP system registers. */ 1898 #define ARM_VFP_FPSID 0 1899 #define ARM_VFP_FPSCR 1 1900 #define ARM_VFP_MVFR2 5 1901 #define ARM_VFP_MVFR1 6 1902 #define ARM_VFP_MVFR0 7 1903 #define ARM_VFP_FPEXC 8 1904 #define ARM_VFP_FPINST 9 1905 #define ARM_VFP_FPINST2 10 1906 /* These ones are M-profile only */ 1907 #define ARM_VFP_FPSCR_NZCVQC 2 1908 #define ARM_VFP_VPR 12 1909 #define ARM_VFP_P0 13 1910 #define ARM_VFP_FPCXT_NS 14 1911 #define ARM_VFP_FPCXT_S 15 1912 1913 /* QEMU-internal value meaning "FPSCR, but we care only about NZCV" */ 1914 #define QEMU_VFP_FPSCR_NZCV 0xffff 1915 1916 /* iwMMXt coprocessor control registers. */ 1917 #define ARM_IWMMXT_wCID 0 1918 #define ARM_IWMMXT_wCon 1 1919 #define ARM_IWMMXT_wCSSF 2 1920 #define ARM_IWMMXT_wCASF 3 1921 #define ARM_IWMMXT_wCGR0 8 1922 #define ARM_IWMMXT_wCGR1 9 1923 #define ARM_IWMMXT_wCGR2 10 1924 #define ARM_IWMMXT_wCGR3 11 1925 1926 /* V7M CCR bits */ 1927 FIELD(V7M_CCR, NONBASETHRDENA, 0, 1) 1928 FIELD(V7M_CCR, USERSETMPEND, 1, 1) 1929 FIELD(V7M_CCR, UNALIGN_TRP, 3, 1) 1930 FIELD(V7M_CCR, DIV_0_TRP, 4, 1) 1931 FIELD(V7M_CCR, BFHFNMIGN, 8, 1) 1932 FIELD(V7M_CCR, STKALIGN, 9, 1) 1933 FIELD(V7M_CCR, STKOFHFNMIGN, 10, 1) 1934 FIELD(V7M_CCR, DC, 16, 1) 1935 FIELD(V7M_CCR, IC, 17, 1) 1936 FIELD(V7M_CCR, BP, 18, 1) 1937 FIELD(V7M_CCR, LOB, 19, 1) 1938 FIELD(V7M_CCR, TRD, 20, 1) 1939 1940 /* V7M SCR bits */ 1941 FIELD(V7M_SCR, SLEEPONEXIT, 1, 1) 1942 FIELD(V7M_SCR, SLEEPDEEP, 2, 1) 1943 FIELD(V7M_SCR, SLEEPDEEPS, 3, 1) 1944 FIELD(V7M_SCR, SEVONPEND, 4, 1) 1945 1946 /* V7M AIRCR bits */ 1947 FIELD(V7M_AIRCR, VECTRESET, 0, 1) 1948 FIELD(V7M_AIRCR, VECTCLRACTIVE, 1, 1) 1949 FIELD(V7M_AIRCR, SYSRESETREQ, 2, 1) 1950 FIELD(V7M_AIRCR, SYSRESETREQS, 3, 1) 1951 FIELD(V7M_AIRCR, PRIGROUP, 8, 3) 1952 FIELD(V7M_AIRCR, BFHFNMINS, 13, 1) 1953 FIELD(V7M_AIRCR, PRIS, 14, 1) 1954 FIELD(V7M_AIRCR, ENDIANNESS, 15, 1) 1955 FIELD(V7M_AIRCR, VECTKEY, 16, 16) 1956 1957 /* V7M CFSR bits for MMFSR */ 1958 FIELD(V7M_CFSR, IACCVIOL, 0, 1) 1959 FIELD(V7M_CFSR, DACCVIOL, 1, 1) 1960 FIELD(V7M_CFSR, MUNSTKERR, 3, 1) 1961 FIELD(V7M_CFSR, MSTKERR, 4, 1) 1962 FIELD(V7M_CFSR, MLSPERR, 5, 1) 1963 FIELD(V7M_CFSR, MMARVALID, 7, 1) 1964 1965 /* V7M CFSR bits for BFSR */ 1966 FIELD(V7M_CFSR, IBUSERR, 8 + 0, 1) 1967 FIELD(V7M_CFSR, PRECISERR, 8 + 1, 1) 1968 FIELD(V7M_CFSR, IMPRECISERR, 8 + 2, 1) 1969 FIELD(V7M_CFSR, UNSTKERR, 8 + 3, 1) 1970 FIELD(V7M_CFSR, STKERR, 8 + 4, 1) 1971 FIELD(V7M_CFSR, LSPERR, 8 + 5, 1) 1972 FIELD(V7M_CFSR, BFARVALID, 8 + 7, 1) 1973 1974 /* V7M CFSR bits for UFSR */ 1975 FIELD(V7M_CFSR, UNDEFINSTR, 16 + 0, 1) 1976 FIELD(V7M_CFSR, INVSTATE, 16 + 1, 1) 1977 FIELD(V7M_CFSR, INVPC, 16 + 2, 1) 1978 FIELD(V7M_CFSR, NOCP, 16 + 3, 1) 1979 FIELD(V7M_CFSR, STKOF, 16 + 4, 1) 1980 FIELD(V7M_CFSR, UNALIGNED, 16 + 8, 1) 1981 FIELD(V7M_CFSR, DIVBYZERO, 16 + 9, 1) 1982 1983 /* V7M CFSR bit masks covering all of the subregister bits */ 1984 FIELD(V7M_CFSR, MMFSR, 0, 8) 1985 FIELD(V7M_CFSR, BFSR, 8, 8) 1986 FIELD(V7M_CFSR, UFSR, 16, 16) 1987 1988 /* V7M HFSR bits */ 1989 FIELD(V7M_HFSR, VECTTBL, 1, 1) 1990 FIELD(V7M_HFSR, FORCED, 30, 1) 1991 FIELD(V7M_HFSR, DEBUGEVT, 31, 1) 1992 1993 /* V7M DFSR bits */ 1994 FIELD(V7M_DFSR, HALTED, 0, 1) 1995 FIELD(V7M_DFSR, BKPT, 1, 1) 1996 FIELD(V7M_DFSR, DWTTRAP, 2, 1) 1997 FIELD(V7M_DFSR, VCATCH, 3, 1) 1998 FIELD(V7M_DFSR, EXTERNAL, 4, 1) 1999 2000 /* V7M SFSR bits */ 2001 FIELD(V7M_SFSR, INVEP, 0, 1) 2002 FIELD(V7M_SFSR, INVIS, 1, 1) 2003 FIELD(V7M_SFSR, INVER, 2, 1) 2004 FIELD(V7M_SFSR, AUVIOL, 3, 1) 2005 FIELD(V7M_SFSR, INVTRAN, 4, 1) 2006 FIELD(V7M_SFSR, LSPERR, 5, 1) 2007 FIELD(V7M_SFSR, SFARVALID, 6, 1) 2008 FIELD(V7M_SFSR, LSERR, 7, 1) 2009 2010 /* v7M MPU_CTRL bits */ 2011 FIELD(V7M_MPU_CTRL, ENABLE, 0, 1) 2012 FIELD(V7M_MPU_CTRL, HFNMIENA, 1, 1) 2013 FIELD(V7M_MPU_CTRL, PRIVDEFENA, 2, 1) 2014 2015 /* v7M CLIDR bits */ 2016 FIELD(V7M_CLIDR, CTYPE_ALL, 0, 21) 2017 FIELD(V7M_CLIDR, LOUIS, 21, 3) 2018 FIELD(V7M_CLIDR, LOC, 24, 3) 2019 FIELD(V7M_CLIDR, LOUU, 27, 3) 2020 FIELD(V7M_CLIDR, ICB, 30, 2) 2021 2022 FIELD(V7M_CSSELR, IND, 0, 1) 2023 FIELD(V7M_CSSELR, LEVEL, 1, 3) 2024 /* We use the combination of InD and Level to index into cpu->ccsidr[]; 2025 * define a mask for this and check that it doesn't permit running off 2026 * the end of the array. 2027 */ 2028 FIELD(V7M_CSSELR, INDEX, 0, 4) 2029 2030 /* v7M FPCCR bits */ 2031 FIELD(V7M_FPCCR, LSPACT, 0, 1) 2032 FIELD(V7M_FPCCR, USER, 1, 1) 2033 FIELD(V7M_FPCCR, S, 2, 1) 2034 FIELD(V7M_FPCCR, THREAD, 3, 1) 2035 FIELD(V7M_FPCCR, HFRDY, 4, 1) 2036 FIELD(V7M_FPCCR, MMRDY, 5, 1) 2037 FIELD(V7M_FPCCR, BFRDY, 6, 1) 2038 FIELD(V7M_FPCCR, SFRDY, 7, 1) 2039 FIELD(V7M_FPCCR, MONRDY, 8, 1) 2040 FIELD(V7M_FPCCR, SPLIMVIOL, 9, 1) 2041 FIELD(V7M_FPCCR, UFRDY, 10, 1) 2042 FIELD(V7M_FPCCR, RES0, 11, 15) 2043 FIELD(V7M_FPCCR, TS, 26, 1) 2044 FIELD(V7M_FPCCR, CLRONRETS, 27, 1) 2045 FIELD(V7M_FPCCR, CLRONRET, 28, 1) 2046 FIELD(V7M_FPCCR, LSPENS, 29, 1) 2047 FIELD(V7M_FPCCR, LSPEN, 30, 1) 2048 FIELD(V7M_FPCCR, ASPEN, 31, 1) 2049 /* These bits are banked. Others are non-banked and live in the M_REG_S bank */ 2050 #define R_V7M_FPCCR_BANKED_MASK \ 2051 (R_V7M_FPCCR_LSPACT_MASK | \ 2052 R_V7M_FPCCR_USER_MASK | \ 2053 R_V7M_FPCCR_THREAD_MASK | \ 2054 R_V7M_FPCCR_MMRDY_MASK | \ 2055 R_V7M_FPCCR_SPLIMVIOL_MASK | \ 2056 R_V7M_FPCCR_UFRDY_MASK | \ 2057 R_V7M_FPCCR_ASPEN_MASK) 2058 2059 /* v7M VPR bits */ 2060 FIELD(V7M_VPR, P0, 0, 16) 2061 FIELD(V7M_VPR, MASK01, 16, 4) 2062 FIELD(V7M_VPR, MASK23, 20, 4) 2063 2064 /* 2065 * System register ID fields. 2066 */ 2067 FIELD(CLIDR_EL1, CTYPE1, 0, 3) 2068 FIELD(CLIDR_EL1, CTYPE2, 3, 3) 2069 FIELD(CLIDR_EL1, CTYPE3, 6, 3) 2070 FIELD(CLIDR_EL1, CTYPE4, 9, 3) 2071 FIELD(CLIDR_EL1, CTYPE5, 12, 3) 2072 FIELD(CLIDR_EL1, CTYPE6, 15, 3) 2073 FIELD(CLIDR_EL1, CTYPE7, 18, 3) 2074 FIELD(CLIDR_EL1, LOUIS, 21, 3) 2075 FIELD(CLIDR_EL1, LOC, 24, 3) 2076 FIELD(CLIDR_EL1, LOUU, 27, 3) 2077 FIELD(CLIDR_EL1, ICB, 30, 3) 2078 2079 /* When FEAT_CCIDX is implemented */ 2080 FIELD(CCSIDR_EL1, CCIDX_LINESIZE, 0, 3) 2081 FIELD(CCSIDR_EL1, CCIDX_ASSOCIATIVITY, 3, 21) 2082 FIELD(CCSIDR_EL1, CCIDX_NUMSETS, 32, 24) 2083 2084 /* When FEAT_CCIDX is not implemented */ 2085 FIELD(CCSIDR_EL1, LINESIZE, 0, 3) 2086 FIELD(CCSIDR_EL1, ASSOCIATIVITY, 3, 10) 2087 FIELD(CCSIDR_EL1, NUMSETS, 13, 15) 2088 2089 FIELD(CTR_EL0, IMINLINE, 0, 4) 2090 FIELD(CTR_EL0, L1IP, 14, 2) 2091 FIELD(CTR_EL0, DMINLINE, 16, 4) 2092 FIELD(CTR_EL0, ERG, 20, 4) 2093 FIELD(CTR_EL0, CWG, 24, 4) 2094 FIELD(CTR_EL0, IDC, 28, 1) 2095 FIELD(CTR_EL0, DIC, 29, 1) 2096 FIELD(CTR_EL0, TMINLINE, 32, 6) 2097 2098 FIELD(MIDR_EL1, REVISION, 0, 4) 2099 FIELD(MIDR_EL1, PARTNUM, 4, 12) 2100 FIELD(MIDR_EL1, ARCHITECTURE, 16, 4) 2101 FIELD(MIDR_EL1, VARIANT, 20, 4) 2102 FIELD(MIDR_EL1, IMPLEMENTER, 24, 8) 2103 2104 FIELD(ID_ISAR0, SWAP, 0, 4) 2105 FIELD(ID_ISAR0, BITCOUNT, 4, 4) 2106 FIELD(ID_ISAR0, BITFIELD, 8, 4) 2107 FIELD(ID_ISAR0, CMPBRANCH, 12, 4) 2108 FIELD(ID_ISAR0, COPROC, 16, 4) 2109 FIELD(ID_ISAR0, DEBUG, 20, 4) 2110 FIELD(ID_ISAR0, DIVIDE, 24, 4) 2111 2112 FIELD(ID_ISAR1, ENDIAN, 0, 4) 2113 FIELD(ID_ISAR1, EXCEPT, 4, 4) 2114 FIELD(ID_ISAR1, EXCEPT_AR, 8, 4) 2115 FIELD(ID_ISAR1, EXTEND, 12, 4) 2116 FIELD(ID_ISAR1, IFTHEN, 16, 4) 2117 FIELD(ID_ISAR1, IMMEDIATE, 20, 4) 2118 FIELD(ID_ISAR1, INTERWORK, 24, 4) 2119 FIELD(ID_ISAR1, JAZELLE, 28, 4) 2120 2121 FIELD(ID_ISAR2, LOADSTORE, 0, 4) 2122 FIELD(ID_ISAR2, MEMHINT, 4, 4) 2123 FIELD(ID_ISAR2, MULTIACCESSINT, 8, 4) 2124 FIELD(ID_ISAR2, MULT, 12, 4) 2125 FIELD(ID_ISAR2, MULTS, 16, 4) 2126 FIELD(ID_ISAR2, MULTU, 20, 4) 2127 FIELD(ID_ISAR2, PSR_AR, 24, 4) 2128 FIELD(ID_ISAR2, REVERSAL, 28, 4) 2129 2130 FIELD(ID_ISAR3, SATURATE, 0, 4) 2131 FIELD(ID_ISAR3, SIMD, 4, 4) 2132 FIELD(ID_ISAR3, SVC, 8, 4) 2133 FIELD(ID_ISAR3, SYNCHPRIM, 12, 4) 2134 FIELD(ID_ISAR3, TABBRANCH, 16, 4) 2135 FIELD(ID_ISAR3, T32COPY, 20, 4) 2136 FIELD(ID_ISAR3, TRUENOP, 24, 4) 2137 FIELD(ID_ISAR3, T32EE, 28, 4) 2138 2139 FIELD(ID_ISAR4, UNPRIV, 0, 4) 2140 FIELD(ID_ISAR4, WITHSHIFTS, 4, 4) 2141 FIELD(ID_ISAR4, WRITEBACK, 8, 4) 2142 FIELD(ID_ISAR4, SMC, 12, 4) 2143 FIELD(ID_ISAR4, BARRIER, 16, 4) 2144 FIELD(ID_ISAR4, SYNCHPRIM_FRAC, 20, 4) 2145 FIELD(ID_ISAR4, PSR_M, 24, 4) 2146 FIELD(ID_ISAR4, SWP_FRAC, 28, 4) 2147 2148 FIELD(ID_ISAR5, SEVL, 0, 4) 2149 FIELD(ID_ISAR5, AES, 4, 4) 2150 FIELD(ID_ISAR5, SHA1, 8, 4) 2151 FIELD(ID_ISAR5, SHA2, 12, 4) 2152 FIELD(ID_ISAR5, CRC32, 16, 4) 2153 FIELD(ID_ISAR5, RDM, 24, 4) 2154 FIELD(ID_ISAR5, VCMA, 28, 4) 2155 2156 FIELD(ID_ISAR6, JSCVT, 0, 4) 2157 FIELD(ID_ISAR6, DP, 4, 4) 2158 FIELD(ID_ISAR6, FHM, 8, 4) 2159 FIELD(ID_ISAR6, SB, 12, 4) 2160 FIELD(ID_ISAR6, SPECRES, 16, 4) 2161 FIELD(ID_ISAR6, BF16, 20, 4) 2162 FIELD(ID_ISAR6, I8MM, 24, 4) 2163 2164 FIELD(ID_MMFR0, VMSA, 0, 4) 2165 FIELD(ID_MMFR0, PMSA, 4, 4) 2166 FIELD(ID_MMFR0, OUTERSHR, 8, 4) 2167 FIELD(ID_MMFR0, SHARELVL, 12, 4) 2168 FIELD(ID_MMFR0, TCM, 16, 4) 2169 FIELD(ID_MMFR0, AUXREG, 20, 4) 2170 FIELD(ID_MMFR0, FCSE, 24, 4) 2171 FIELD(ID_MMFR0, INNERSHR, 28, 4) 2172 2173 FIELD(ID_MMFR1, L1HVDVA, 0, 4) 2174 FIELD(ID_MMFR1, L1UNIVA, 4, 4) 2175 FIELD(ID_MMFR1, L1HVDSW, 8, 4) 2176 FIELD(ID_MMFR1, L1UNISW, 12, 4) 2177 FIELD(ID_MMFR1, L1HVD, 16, 4) 2178 FIELD(ID_MMFR1, L1UNI, 20, 4) 2179 FIELD(ID_MMFR1, L1TSTCLN, 24, 4) 2180 FIELD(ID_MMFR1, BPRED, 28, 4) 2181 2182 FIELD(ID_MMFR2, L1HVDFG, 0, 4) 2183 FIELD(ID_MMFR2, L1HVDBG, 4, 4) 2184 FIELD(ID_MMFR2, L1HVDRNG, 8, 4) 2185 FIELD(ID_MMFR2, HVDTLB, 12, 4) 2186 FIELD(ID_MMFR2, UNITLB, 16, 4) 2187 FIELD(ID_MMFR2, MEMBARR, 20, 4) 2188 FIELD(ID_MMFR2, WFISTALL, 24, 4) 2189 FIELD(ID_MMFR2, HWACCFLG, 28, 4) 2190 2191 FIELD(ID_MMFR3, CMAINTVA, 0, 4) 2192 FIELD(ID_MMFR3, CMAINTSW, 4, 4) 2193 FIELD(ID_MMFR3, BPMAINT, 8, 4) 2194 FIELD(ID_MMFR3, MAINTBCST, 12, 4) 2195 FIELD(ID_MMFR3, PAN, 16, 4) 2196 FIELD(ID_MMFR3, COHWALK, 20, 4) 2197 FIELD(ID_MMFR3, CMEMSZ, 24, 4) 2198 FIELD(ID_MMFR3, SUPERSEC, 28, 4) 2199 2200 FIELD(ID_MMFR4, SPECSEI, 0, 4) 2201 FIELD(ID_MMFR4, AC2, 4, 4) 2202 FIELD(ID_MMFR4, XNX, 8, 4) 2203 FIELD(ID_MMFR4, CNP, 12, 4) 2204 FIELD(ID_MMFR4, HPDS, 16, 4) 2205 FIELD(ID_MMFR4, LSM, 20, 4) 2206 FIELD(ID_MMFR4, CCIDX, 24, 4) 2207 FIELD(ID_MMFR4, EVT, 28, 4) 2208 2209 FIELD(ID_MMFR5, ETS, 0, 4) 2210 FIELD(ID_MMFR5, NTLBPA, 4, 4) 2211 2212 FIELD(ID_PFR0, STATE0, 0, 4) 2213 FIELD(ID_PFR0, STATE1, 4, 4) 2214 FIELD(ID_PFR0, STATE2, 8, 4) 2215 FIELD(ID_PFR0, STATE3, 12, 4) 2216 FIELD(ID_PFR0, CSV2, 16, 4) 2217 FIELD(ID_PFR0, AMU, 20, 4) 2218 FIELD(ID_PFR0, DIT, 24, 4) 2219 FIELD(ID_PFR0, RAS, 28, 4) 2220 2221 FIELD(ID_PFR1, PROGMOD, 0, 4) 2222 FIELD(ID_PFR1, SECURITY, 4, 4) 2223 FIELD(ID_PFR1, MPROGMOD, 8, 4) 2224 FIELD(ID_PFR1, VIRTUALIZATION, 12, 4) 2225 FIELD(ID_PFR1, GENTIMER, 16, 4) 2226 FIELD(ID_PFR1, SEC_FRAC, 20, 4) 2227 FIELD(ID_PFR1, VIRT_FRAC, 24, 4) 2228 FIELD(ID_PFR1, GIC, 28, 4) 2229 2230 FIELD(ID_PFR2, CSV3, 0, 4) 2231 FIELD(ID_PFR2, SSBS, 4, 4) 2232 FIELD(ID_PFR2, RAS_FRAC, 8, 4) 2233 2234 FIELD(ID_AA64ISAR0, AES, 4, 4) 2235 FIELD(ID_AA64ISAR0, SHA1, 8, 4) 2236 FIELD(ID_AA64ISAR0, SHA2, 12, 4) 2237 FIELD(ID_AA64ISAR0, CRC32, 16, 4) 2238 FIELD(ID_AA64ISAR0, ATOMIC, 20, 4) 2239 FIELD(ID_AA64ISAR0, TME, 24, 4) 2240 FIELD(ID_AA64ISAR0, RDM, 28, 4) 2241 FIELD(ID_AA64ISAR0, SHA3, 32, 4) 2242 FIELD(ID_AA64ISAR0, SM3, 36, 4) 2243 FIELD(ID_AA64ISAR0, SM4, 40, 4) 2244 FIELD(ID_AA64ISAR0, DP, 44, 4) 2245 FIELD(ID_AA64ISAR0, FHM, 48, 4) 2246 FIELD(ID_AA64ISAR0, TS, 52, 4) 2247 FIELD(ID_AA64ISAR0, TLB, 56, 4) 2248 FIELD(ID_AA64ISAR0, RNDR, 60, 4) 2249 2250 FIELD(ID_AA64ISAR1, DPB, 0, 4) 2251 FIELD(ID_AA64ISAR1, APA, 4, 4) 2252 FIELD(ID_AA64ISAR1, API, 8, 4) 2253 FIELD(ID_AA64ISAR1, JSCVT, 12, 4) 2254 FIELD(ID_AA64ISAR1, FCMA, 16, 4) 2255 FIELD(ID_AA64ISAR1, LRCPC, 20, 4) 2256 FIELD(ID_AA64ISAR1, GPA, 24, 4) 2257 FIELD(ID_AA64ISAR1, GPI, 28, 4) 2258 FIELD(ID_AA64ISAR1, FRINTTS, 32, 4) 2259 FIELD(ID_AA64ISAR1, SB, 36, 4) 2260 FIELD(ID_AA64ISAR1, SPECRES, 40, 4) 2261 FIELD(ID_AA64ISAR1, BF16, 44, 4) 2262 FIELD(ID_AA64ISAR1, DGH, 48, 4) 2263 FIELD(ID_AA64ISAR1, I8MM, 52, 4) 2264 FIELD(ID_AA64ISAR1, XS, 56, 4) 2265 FIELD(ID_AA64ISAR1, LS64, 60, 4) 2266 2267 FIELD(ID_AA64ISAR2, WFXT, 0, 4) 2268 FIELD(ID_AA64ISAR2, RPRES, 4, 4) 2269 FIELD(ID_AA64ISAR2, GPA3, 8, 4) 2270 FIELD(ID_AA64ISAR2, APA3, 12, 4) 2271 FIELD(ID_AA64ISAR2, MOPS, 16, 4) 2272 FIELD(ID_AA64ISAR2, BC, 20, 4) 2273 FIELD(ID_AA64ISAR2, PAC_FRAC, 24, 4) 2274 FIELD(ID_AA64ISAR2, CLRBHB, 28, 4) 2275 FIELD(ID_AA64ISAR2, SYSREG_128, 32, 4) 2276 FIELD(ID_AA64ISAR2, SYSINSTR_128, 36, 4) 2277 FIELD(ID_AA64ISAR2, PRFMSLC, 40, 4) 2278 FIELD(ID_AA64ISAR2, RPRFM, 48, 4) 2279 FIELD(ID_AA64ISAR2, CSSC, 52, 4) 2280 FIELD(ID_AA64ISAR2, ATS1A, 60, 4) 2281 2282 FIELD(ID_AA64PFR0, EL0, 0, 4) 2283 FIELD(ID_AA64PFR0, EL1, 4, 4) 2284 FIELD(ID_AA64PFR0, EL2, 8, 4) 2285 FIELD(ID_AA64PFR0, EL3, 12, 4) 2286 FIELD(ID_AA64PFR0, FP, 16, 4) 2287 FIELD(ID_AA64PFR0, ADVSIMD, 20, 4) 2288 FIELD(ID_AA64PFR0, GIC, 24, 4) 2289 FIELD(ID_AA64PFR0, RAS, 28, 4) 2290 FIELD(ID_AA64PFR0, SVE, 32, 4) 2291 FIELD(ID_AA64PFR0, SEL2, 36, 4) 2292 FIELD(ID_AA64PFR0, MPAM, 40, 4) 2293 FIELD(ID_AA64PFR0, AMU, 44, 4) 2294 FIELD(ID_AA64PFR0, DIT, 48, 4) 2295 FIELD(ID_AA64PFR0, RME, 52, 4) 2296 FIELD(ID_AA64PFR0, CSV2, 56, 4) 2297 FIELD(ID_AA64PFR0, CSV3, 60, 4) 2298 2299 FIELD(ID_AA64PFR1, BT, 0, 4) 2300 FIELD(ID_AA64PFR1, SSBS, 4, 4) 2301 FIELD(ID_AA64PFR1, MTE, 8, 4) 2302 FIELD(ID_AA64PFR1, RAS_FRAC, 12, 4) 2303 FIELD(ID_AA64PFR1, MPAM_FRAC, 16, 4) 2304 FIELD(ID_AA64PFR1, SME, 24, 4) 2305 FIELD(ID_AA64PFR1, RNDR_TRAP, 28, 4) 2306 FIELD(ID_AA64PFR1, CSV2_FRAC, 32, 4) 2307 FIELD(ID_AA64PFR1, NMI, 36, 4) 2308 FIELD(ID_AA64PFR1, MTE_FRAC, 40, 4) 2309 FIELD(ID_AA64PFR1, GCS, 44, 4) 2310 FIELD(ID_AA64PFR1, THE, 48, 4) 2311 FIELD(ID_AA64PFR1, MTEX, 52, 4) 2312 FIELD(ID_AA64PFR1, DF2, 56, 4) 2313 FIELD(ID_AA64PFR1, PFAR, 60, 4) 2314 2315 FIELD(ID_AA64MMFR0, PARANGE, 0, 4) 2316 FIELD(ID_AA64MMFR0, ASIDBITS, 4, 4) 2317 FIELD(ID_AA64MMFR0, BIGEND, 8, 4) 2318 FIELD(ID_AA64MMFR0, SNSMEM, 12, 4) 2319 FIELD(ID_AA64MMFR0, BIGENDEL0, 16, 4) 2320 FIELD(ID_AA64MMFR0, TGRAN16, 20, 4) 2321 FIELD(ID_AA64MMFR0, TGRAN64, 24, 4) 2322 FIELD(ID_AA64MMFR0, TGRAN4, 28, 4) 2323 FIELD(ID_AA64MMFR0, TGRAN16_2, 32, 4) 2324 FIELD(ID_AA64MMFR0, TGRAN64_2, 36, 4) 2325 FIELD(ID_AA64MMFR0, TGRAN4_2, 40, 4) 2326 FIELD(ID_AA64MMFR0, EXS, 44, 4) 2327 FIELD(ID_AA64MMFR0, FGT, 56, 4) 2328 FIELD(ID_AA64MMFR0, ECV, 60, 4) 2329 2330 FIELD(ID_AA64MMFR1, HAFDBS, 0, 4) 2331 FIELD(ID_AA64MMFR1, VMIDBITS, 4, 4) 2332 FIELD(ID_AA64MMFR1, VH, 8, 4) 2333 FIELD(ID_AA64MMFR1, HPDS, 12, 4) 2334 FIELD(ID_AA64MMFR1, LO, 16, 4) 2335 FIELD(ID_AA64MMFR1, PAN, 20, 4) 2336 FIELD(ID_AA64MMFR1, SPECSEI, 24, 4) 2337 FIELD(ID_AA64MMFR1, XNX, 28, 4) 2338 FIELD(ID_AA64MMFR1, TWED, 32, 4) 2339 FIELD(ID_AA64MMFR1, ETS, 36, 4) 2340 FIELD(ID_AA64MMFR1, HCX, 40, 4) 2341 FIELD(ID_AA64MMFR1, AFP, 44, 4) 2342 FIELD(ID_AA64MMFR1, NTLBPA, 48, 4) 2343 FIELD(ID_AA64MMFR1, TIDCP1, 52, 4) 2344 FIELD(ID_AA64MMFR1, CMOW, 56, 4) 2345 FIELD(ID_AA64MMFR1, ECBHB, 60, 4) 2346 2347 FIELD(ID_AA64MMFR2, CNP, 0, 4) 2348 FIELD(ID_AA64MMFR2, UAO, 4, 4) 2349 FIELD(ID_AA64MMFR2, LSM, 8, 4) 2350 FIELD(ID_AA64MMFR2, IESB, 12, 4) 2351 FIELD(ID_AA64MMFR2, VARANGE, 16, 4) 2352 FIELD(ID_AA64MMFR2, CCIDX, 20, 4) 2353 FIELD(ID_AA64MMFR2, NV, 24, 4) 2354 FIELD(ID_AA64MMFR2, ST, 28, 4) 2355 FIELD(ID_AA64MMFR2, AT, 32, 4) 2356 FIELD(ID_AA64MMFR2, IDS, 36, 4) 2357 FIELD(ID_AA64MMFR2, FWB, 40, 4) 2358 FIELD(ID_AA64MMFR2, TTL, 48, 4) 2359 FIELD(ID_AA64MMFR2, BBM, 52, 4) 2360 FIELD(ID_AA64MMFR2, EVT, 56, 4) 2361 FIELD(ID_AA64MMFR2, E0PD, 60, 4) 2362 2363 FIELD(ID_AA64DFR0, DEBUGVER, 0, 4) 2364 FIELD(ID_AA64DFR0, TRACEVER, 4, 4) 2365 FIELD(ID_AA64DFR0, PMUVER, 8, 4) 2366 FIELD(ID_AA64DFR0, BRPS, 12, 4) 2367 FIELD(ID_AA64DFR0, PMSS, 16, 4) 2368 FIELD(ID_AA64DFR0, WRPS, 20, 4) 2369 FIELD(ID_AA64DFR0, SEBEP, 24, 4) 2370 FIELD(ID_AA64DFR0, CTX_CMPS, 28, 4) 2371 FIELD(ID_AA64DFR0, PMSVER, 32, 4) 2372 FIELD(ID_AA64DFR0, DOUBLELOCK, 36, 4) 2373 FIELD(ID_AA64DFR0, TRACEFILT, 40, 4) 2374 FIELD(ID_AA64DFR0, TRACEBUFFER, 44, 4) 2375 FIELD(ID_AA64DFR0, MTPMU, 48, 4) 2376 FIELD(ID_AA64DFR0, BRBE, 52, 4) 2377 FIELD(ID_AA64DFR0, EXTTRCBUFF, 56, 4) 2378 FIELD(ID_AA64DFR0, HPMN0, 60, 4) 2379 2380 FIELD(ID_AA64ZFR0, SVEVER, 0, 4) 2381 FIELD(ID_AA64ZFR0, AES, 4, 4) 2382 FIELD(ID_AA64ZFR0, BITPERM, 16, 4) 2383 FIELD(ID_AA64ZFR0, BFLOAT16, 20, 4) 2384 FIELD(ID_AA64ZFR0, B16B16, 24, 4) 2385 FIELD(ID_AA64ZFR0, SHA3, 32, 4) 2386 FIELD(ID_AA64ZFR0, SM4, 40, 4) 2387 FIELD(ID_AA64ZFR0, I8MM, 44, 4) 2388 FIELD(ID_AA64ZFR0, F32MM, 52, 4) 2389 FIELD(ID_AA64ZFR0, F64MM, 56, 4) 2390 2391 FIELD(ID_AA64SMFR0, F32F32, 32, 1) 2392 FIELD(ID_AA64SMFR0, BI32I32, 33, 1) 2393 FIELD(ID_AA64SMFR0, B16F32, 34, 1) 2394 FIELD(ID_AA64SMFR0, F16F32, 35, 1) 2395 FIELD(ID_AA64SMFR0, I8I32, 36, 4) 2396 FIELD(ID_AA64SMFR0, F16F16, 42, 1) 2397 FIELD(ID_AA64SMFR0, B16B16, 43, 1) 2398 FIELD(ID_AA64SMFR0, I16I32, 44, 4) 2399 FIELD(ID_AA64SMFR0, F64F64, 48, 1) 2400 FIELD(ID_AA64SMFR0, I16I64, 52, 4) 2401 FIELD(ID_AA64SMFR0, SMEVER, 56, 4) 2402 FIELD(ID_AA64SMFR0, FA64, 63, 1) 2403 2404 FIELD(ID_DFR0, COPDBG, 0, 4) 2405 FIELD(ID_DFR0, COPSDBG, 4, 4) 2406 FIELD(ID_DFR0, MMAPDBG, 8, 4) 2407 FIELD(ID_DFR0, COPTRC, 12, 4) 2408 FIELD(ID_DFR0, MMAPTRC, 16, 4) 2409 FIELD(ID_DFR0, MPROFDBG, 20, 4) 2410 FIELD(ID_DFR0, PERFMON, 24, 4) 2411 FIELD(ID_DFR0, TRACEFILT, 28, 4) 2412 2413 FIELD(ID_DFR1, MTPMU, 0, 4) 2414 FIELD(ID_DFR1, HPMN0, 4, 4) 2415 2416 FIELD(DBGDIDR, SE_IMP, 12, 1) 2417 FIELD(DBGDIDR, NSUHD_IMP, 14, 1) 2418 FIELD(DBGDIDR, VERSION, 16, 4) 2419 FIELD(DBGDIDR, CTX_CMPS, 20, 4) 2420 FIELD(DBGDIDR, BRPS, 24, 4) 2421 FIELD(DBGDIDR, WRPS, 28, 4) 2422 2423 FIELD(DBGDEVID, PCSAMPLE, 0, 4) 2424 FIELD(DBGDEVID, WPADDRMASK, 4, 4) 2425 FIELD(DBGDEVID, BPADDRMASK, 8, 4) 2426 FIELD(DBGDEVID, VECTORCATCH, 12, 4) 2427 FIELD(DBGDEVID, VIRTEXTNS, 16, 4) 2428 FIELD(DBGDEVID, DOUBLELOCK, 20, 4) 2429 FIELD(DBGDEVID, AUXREGS, 24, 4) 2430 FIELD(DBGDEVID, CIDMASK, 28, 4) 2431 2432 FIELD(MVFR0, SIMDREG, 0, 4) 2433 FIELD(MVFR0, FPSP, 4, 4) 2434 FIELD(MVFR0, FPDP, 8, 4) 2435 FIELD(MVFR0, FPTRAP, 12, 4) 2436 FIELD(MVFR0, FPDIVIDE, 16, 4) 2437 FIELD(MVFR0, FPSQRT, 20, 4) 2438 FIELD(MVFR0, FPSHVEC, 24, 4) 2439 FIELD(MVFR0, FPROUND, 28, 4) 2440 2441 FIELD(MVFR1, FPFTZ, 0, 4) 2442 FIELD(MVFR1, FPDNAN, 4, 4) 2443 FIELD(MVFR1, SIMDLS, 8, 4) /* A-profile only */ 2444 FIELD(MVFR1, SIMDINT, 12, 4) /* A-profile only */ 2445 FIELD(MVFR1, SIMDSP, 16, 4) /* A-profile only */ 2446 FIELD(MVFR1, SIMDHP, 20, 4) /* A-profile only */ 2447 FIELD(MVFR1, MVE, 8, 4) /* M-profile only */ 2448 FIELD(MVFR1, FP16, 20, 4) /* M-profile only */ 2449 FIELD(MVFR1, FPHP, 24, 4) 2450 FIELD(MVFR1, SIMDFMAC, 28, 4) 2451 2452 FIELD(MVFR2, SIMDMISC, 0, 4) 2453 FIELD(MVFR2, FPMISC, 4, 4) 2454 2455 FIELD(GPCCR, PPS, 0, 3) 2456 FIELD(GPCCR, IRGN, 8, 2) 2457 FIELD(GPCCR, ORGN, 10, 2) 2458 FIELD(GPCCR, SH, 12, 2) 2459 FIELD(GPCCR, PGS, 14, 2) 2460 FIELD(GPCCR, GPC, 16, 1) 2461 FIELD(GPCCR, GPCP, 17, 1) 2462 FIELD(GPCCR, L0GPTSZ, 20, 4) 2463 2464 FIELD(MFAR, FPA, 12, 40) 2465 FIELD(MFAR, NSE, 62, 1) 2466 FIELD(MFAR, NS, 63, 1) 2467 2468 QEMU_BUILD_BUG_ON(ARRAY_SIZE(((ARMCPU *)0)->ccsidr) <= R_V7M_CSSELR_INDEX_MASK); 2469 2470 /* If adding a feature bit which corresponds to a Linux ELF 2471 * HWCAP bit, remember to update the feature-bit-to-hwcap 2472 * mapping in linux-user/elfload.c:get_elf_hwcap(). 2473 */ 2474 enum arm_features { 2475 ARM_FEATURE_AUXCR, /* ARM1026 Auxiliary control register. */ 2476 ARM_FEATURE_XSCALE, /* Intel XScale extensions. */ 2477 ARM_FEATURE_IWMMXT, /* Intel iwMMXt extension. */ 2478 ARM_FEATURE_V6, 2479 ARM_FEATURE_V6K, 2480 ARM_FEATURE_V7, 2481 ARM_FEATURE_THUMB2, 2482 ARM_FEATURE_PMSA, /* no MMU; may have Memory Protection Unit */ 2483 ARM_FEATURE_NEON, 2484 ARM_FEATURE_M, /* Microcontroller profile. */ 2485 ARM_FEATURE_OMAPCP, /* OMAP specific CP15 ops handling. */ 2486 ARM_FEATURE_THUMB2EE, 2487 ARM_FEATURE_V7MP, /* v7 Multiprocessing Extensions */ 2488 ARM_FEATURE_V7VE, /* v7 Virtualization Extensions (non-EL2 parts) */ 2489 ARM_FEATURE_V4T, 2490 ARM_FEATURE_V5, 2491 ARM_FEATURE_STRONGARM, 2492 ARM_FEATURE_VAPA, /* cp15 VA to PA lookups */ 2493 ARM_FEATURE_GENERIC_TIMER, 2494 ARM_FEATURE_MVFR, /* Media and VFP Feature Registers 0 and 1 */ 2495 ARM_FEATURE_DUMMY_C15_REGS, /* RAZ/WI all of cp15 crn=15 */ 2496 ARM_FEATURE_CACHE_TEST_CLEAN, /* 926/1026 style test-and-clean ops */ 2497 ARM_FEATURE_CACHE_DIRTY_REG, /* 1136/1176 cache dirty status register */ 2498 ARM_FEATURE_CACHE_BLOCK_OPS, /* v6 optional cache block operations */ 2499 ARM_FEATURE_MPIDR, /* has cp15 MPIDR */ 2500 ARM_FEATURE_LPAE, /* has Large Physical Address Extension */ 2501 ARM_FEATURE_V8, 2502 ARM_FEATURE_AARCH64, /* supports 64 bit mode */ 2503 ARM_FEATURE_CBAR, /* has cp15 CBAR */ 2504 ARM_FEATURE_CBAR_RO, /* has cp15 CBAR and it is read-only */ 2505 ARM_FEATURE_EL2, /* has EL2 Virtualization support */ 2506 ARM_FEATURE_EL3, /* has EL3 Secure monitor support */ 2507 ARM_FEATURE_THUMB_DSP, /* DSP insns supported in the Thumb encodings */ 2508 ARM_FEATURE_PMU, /* has PMU support */ 2509 ARM_FEATURE_VBAR, /* has cp15 VBAR */ 2510 ARM_FEATURE_M_SECURITY, /* M profile Security Extension */ 2511 ARM_FEATURE_M_MAIN, /* M profile Main Extension */ 2512 ARM_FEATURE_V8_1M, /* M profile extras only in v8.1M and later */ 2513 }; 2514 2515 static inline int arm_feature(CPUARMState *env, int feature) 2516 { 2517 return (env->features & (1ULL << feature)) != 0; 2518 } 2519 2520 void arm_cpu_finalize_features(ARMCPU *cpu, Error **errp); 2521 2522 /* 2523 * ARM v9 security states. 2524 * The ordering of the enumeration corresponds to the low 2 bits 2525 * of the GPI value, and (except for Root) the concat of NSE:NS. 2526 */ 2527 2528 typedef enum ARMSecuritySpace { 2529 ARMSS_Secure = 0, 2530 ARMSS_NonSecure = 1, 2531 ARMSS_Root = 2, 2532 ARMSS_Realm = 3, 2533 } ARMSecuritySpace; 2534 2535 /* Return true if @space is secure, in the pre-v9 sense. */ 2536 static inline bool arm_space_is_secure(ARMSecuritySpace space) 2537 { 2538 return space == ARMSS_Secure || space == ARMSS_Root; 2539 } 2540 2541 /* Return the ARMSecuritySpace for @secure, assuming !RME or EL[0-2]. */ 2542 static inline ARMSecuritySpace arm_secure_to_space(bool secure) 2543 { 2544 return secure ? ARMSS_Secure : ARMSS_NonSecure; 2545 } 2546 2547 #if !defined(CONFIG_USER_ONLY) 2548 /** 2549 * arm_security_space_below_el3: 2550 * @env: cpu context 2551 * 2552 * Return the security space of exception levels below EL3, following 2553 * an exception return to those levels. Unlike arm_security_space, 2554 * this doesn't care about the current EL. 2555 */ 2556 ARMSecuritySpace arm_security_space_below_el3(CPUARMState *env); 2557 2558 /** 2559 * arm_is_secure_below_el3: 2560 * @env: cpu context 2561 * 2562 * Return true if exception levels below EL3 are in secure state, 2563 * or would be following an exception return to those levels. 2564 */ 2565 static inline bool arm_is_secure_below_el3(CPUARMState *env) 2566 { 2567 ARMSecuritySpace ss = arm_security_space_below_el3(env); 2568 return ss == ARMSS_Secure; 2569 } 2570 2571 /* Return true if the CPU is AArch64 EL3 or AArch32 Mon */ 2572 static inline bool arm_is_el3_or_mon(CPUARMState *env) 2573 { 2574 assert(!arm_feature(env, ARM_FEATURE_M)); 2575 if (arm_feature(env, ARM_FEATURE_EL3)) { 2576 if (is_a64(env) && extract32(env->pstate, 2, 2) == 3) { 2577 /* CPU currently in AArch64 state and EL3 */ 2578 return true; 2579 } else if (!is_a64(env) && 2580 (env->uncached_cpsr & CPSR_M) == ARM_CPU_MODE_MON) { 2581 /* CPU currently in AArch32 state and monitor mode */ 2582 return true; 2583 } 2584 } 2585 return false; 2586 } 2587 2588 /** 2589 * arm_security_space: 2590 * @env: cpu context 2591 * 2592 * Return the current security space of the cpu. 2593 */ 2594 ARMSecuritySpace arm_security_space(CPUARMState *env); 2595 2596 /** 2597 * arm_is_secure: 2598 * @env: cpu context 2599 * 2600 * Return true if the processor is in secure state. 2601 */ 2602 static inline bool arm_is_secure(CPUARMState *env) 2603 { 2604 return arm_space_is_secure(arm_security_space(env)); 2605 } 2606 2607 /* 2608 * Return true if the current security state has AArch64 EL2 or AArch32 Hyp. 2609 * This corresponds to the pseudocode EL2Enabled(). 2610 */ 2611 static inline bool arm_is_el2_enabled_secstate(CPUARMState *env, 2612 ARMSecuritySpace space) 2613 { 2614 assert(space != ARMSS_Root); 2615 return arm_feature(env, ARM_FEATURE_EL2) 2616 && (space != ARMSS_Secure || (env->cp15.scr_el3 & SCR_EEL2)); 2617 } 2618 2619 static inline bool arm_is_el2_enabled(CPUARMState *env) 2620 { 2621 return arm_is_el2_enabled_secstate(env, arm_security_space_below_el3(env)); 2622 } 2623 2624 #else 2625 static inline ARMSecuritySpace arm_security_space_below_el3(CPUARMState *env) 2626 { 2627 return ARMSS_NonSecure; 2628 } 2629 2630 static inline bool arm_is_secure_below_el3(CPUARMState *env) 2631 { 2632 return false; 2633 } 2634 2635 static inline ARMSecuritySpace arm_security_space(CPUARMState *env) 2636 { 2637 return ARMSS_NonSecure; 2638 } 2639 2640 static inline bool arm_is_secure(CPUARMState *env) 2641 { 2642 return false; 2643 } 2644 2645 static inline bool arm_is_el2_enabled_secstate(CPUARMState *env, 2646 ARMSecuritySpace space) 2647 { 2648 return false; 2649 } 2650 2651 static inline bool arm_is_el2_enabled(CPUARMState *env) 2652 { 2653 return false; 2654 } 2655 #endif 2656 2657 /** 2658 * arm_hcr_el2_eff(): Return the effective value of HCR_EL2. 2659 * E.g. when in secure state, fields in HCR_EL2 are suppressed, 2660 * "for all purposes other than a direct read or write access of HCR_EL2." 2661 * Not included here is HCR_RW. 2662 */ 2663 uint64_t arm_hcr_el2_eff_secstate(CPUARMState *env, ARMSecuritySpace space); 2664 uint64_t arm_hcr_el2_eff(CPUARMState *env); 2665 uint64_t arm_hcrx_el2_eff(CPUARMState *env); 2666 2667 /* Return true if the specified exception level is running in AArch64 state. */ 2668 static inline bool arm_el_is_aa64(CPUARMState *env, int el) 2669 { 2670 /* This isn't valid for EL0 (if we're in EL0, is_a64() is what you want, 2671 * and if we're not in EL0 then the state of EL0 isn't well defined.) 2672 */ 2673 assert(el >= 1 && el <= 3); 2674 bool aa64 = arm_feature(env, ARM_FEATURE_AARCH64); 2675 2676 /* The highest exception level is always at the maximum supported 2677 * register width, and then lower levels have a register width controlled 2678 * by bits in the SCR or HCR registers. 2679 */ 2680 if (el == 3) { 2681 return aa64; 2682 } 2683 2684 if (arm_feature(env, ARM_FEATURE_EL3) && 2685 ((env->cp15.scr_el3 & SCR_NS) || !(env->cp15.scr_el3 & SCR_EEL2))) { 2686 aa64 = aa64 && (env->cp15.scr_el3 & SCR_RW); 2687 } 2688 2689 if (el == 2) { 2690 return aa64; 2691 } 2692 2693 if (arm_is_el2_enabled(env)) { 2694 aa64 = aa64 && (env->cp15.hcr_el2 & HCR_RW); 2695 } 2696 2697 return aa64; 2698 } 2699 2700 /* Function for determining whether guest cp register reads and writes should 2701 * access the secure or non-secure bank of a cp register. When EL3 is 2702 * operating in AArch32 state, the NS-bit determines whether the secure 2703 * instance of a cp register should be used. When EL3 is AArch64 (or if 2704 * it doesn't exist at all) then there is no register banking, and all 2705 * accesses are to the non-secure version. 2706 */ 2707 static inline bool access_secure_reg(CPUARMState *env) 2708 { 2709 bool ret = (arm_feature(env, ARM_FEATURE_EL3) && 2710 !arm_el_is_aa64(env, 3) && 2711 !(env->cp15.scr_el3 & SCR_NS)); 2712 2713 return ret; 2714 } 2715 2716 /* Macros for accessing a specified CP register bank */ 2717 #define A32_BANKED_REG_GET(_env, _regname, _secure) \ 2718 ((_secure) ? (_env)->cp15._regname##_s : (_env)->cp15._regname##_ns) 2719 2720 #define A32_BANKED_REG_SET(_env, _regname, _secure, _val) \ 2721 do { \ 2722 if (_secure) { \ 2723 (_env)->cp15._regname##_s = (_val); \ 2724 } else { \ 2725 (_env)->cp15._regname##_ns = (_val); \ 2726 } \ 2727 } while (0) 2728 2729 /* Macros for automatically accessing a specific CP register bank depending on 2730 * the current secure state of the system. These macros are not intended for 2731 * supporting instruction translation reads/writes as these are dependent 2732 * solely on the SCR.NS bit and not the mode. 2733 */ 2734 #define A32_BANKED_CURRENT_REG_GET(_env, _regname) \ 2735 A32_BANKED_REG_GET((_env), _regname, \ 2736 (arm_is_secure(_env) && !arm_el_is_aa64((_env), 3))) 2737 2738 #define A32_BANKED_CURRENT_REG_SET(_env, _regname, _val) \ 2739 A32_BANKED_REG_SET((_env), _regname, \ 2740 (arm_is_secure(_env) && !arm_el_is_aa64((_env), 3)), \ 2741 (_val)) 2742 2743 uint32_t arm_phys_excp_target_el(CPUState *cs, uint32_t excp_idx, 2744 uint32_t cur_el, bool secure); 2745 2746 /* Return the highest implemented Exception Level */ 2747 static inline int arm_highest_el(CPUARMState *env) 2748 { 2749 if (arm_feature(env, ARM_FEATURE_EL3)) { 2750 return 3; 2751 } 2752 if (arm_feature(env, ARM_FEATURE_EL2)) { 2753 return 2; 2754 } 2755 return 1; 2756 } 2757 2758 /* Return true if a v7M CPU is in Handler mode */ 2759 static inline bool arm_v7m_is_handler_mode(CPUARMState *env) 2760 { 2761 return env->v7m.exception != 0; 2762 } 2763 2764 /* Return the current Exception Level (as per ARMv8; note that this differs 2765 * from the ARMv7 Privilege Level). 2766 */ 2767 static inline int arm_current_el(CPUARMState *env) 2768 { 2769 if (arm_feature(env, ARM_FEATURE_M)) { 2770 return arm_v7m_is_handler_mode(env) || 2771 !(env->v7m.control[env->v7m.secure] & 1); 2772 } 2773 2774 if (is_a64(env)) { 2775 return extract32(env->pstate, 2, 2); 2776 } 2777 2778 switch (env->uncached_cpsr & 0x1f) { 2779 case ARM_CPU_MODE_USR: 2780 return 0; 2781 case ARM_CPU_MODE_HYP: 2782 return 2; 2783 case ARM_CPU_MODE_MON: 2784 return 3; 2785 default: 2786 if (arm_is_secure(env) && !arm_el_is_aa64(env, 3)) { 2787 /* If EL3 is 32-bit then all secure privileged modes run in 2788 * EL3 2789 */ 2790 return 3; 2791 } 2792 2793 return 1; 2794 } 2795 } 2796 2797 /** 2798 * write_list_to_cpustate 2799 * @cpu: ARMCPU 2800 * 2801 * For each register listed in the ARMCPU cpreg_indexes list, write 2802 * its value from the cpreg_values list into the ARMCPUState structure. 2803 * This updates TCG's working data structures from KVM data or 2804 * from incoming migration state. 2805 * 2806 * Returns: true if all register values were updated correctly, 2807 * false if some register was unknown or could not be written. 2808 * Note that we do not stop early on failure -- we will attempt 2809 * writing all registers in the list. 2810 */ 2811 bool write_list_to_cpustate(ARMCPU *cpu); 2812 2813 /** 2814 * write_cpustate_to_list: 2815 * @cpu: ARMCPU 2816 * @kvm_sync: true if this is for syncing back to KVM 2817 * 2818 * For each register listed in the ARMCPU cpreg_indexes list, write 2819 * its value from the ARMCPUState structure into the cpreg_values list. 2820 * This is used to copy info from TCG's working data structures into 2821 * KVM or for outbound migration. 2822 * 2823 * @kvm_sync is true if we are doing this in order to sync the 2824 * register state back to KVM. In this case we will only update 2825 * values in the list if the previous list->cpustate sync actually 2826 * successfully wrote the CPU state. Otherwise we will keep the value 2827 * that is in the list. 2828 * 2829 * Returns: true if all register values were read correctly, 2830 * false if some register was unknown or could not be read. 2831 * Note that we do not stop early on failure -- we will attempt 2832 * reading all registers in the list. 2833 */ 2834 bool write_cpustate_to_list(ARMCPU *cpu, bool kvm_sync); 2835 2836 #define ARM_CPUID_TI915T 0x54029152 2837 #define ARM_CPUID_TI925T 0x54029252 2838 2839 #define ARM_CPU_TYPE_SUFFIX "-" TYPE_ARM_CPU 2840 #define ARM_CPU_TYPE_NAME(name) (name ARM_CPU_TYPE_SUFFIX) 2841 #define CPU_RESOLVING_TYPE TYPE_ARM_CPU 2842 2843 #define TYPE_ARM_HOST_CPU "host-" TYPE_ARM_CPU 2844 2845 /* ARM has the following "translation regimes" (as the ARM ARM calls them): 2846 * 2847 * If EL3 is 64-bit: 2848 * + NonSecure EL1 & 0 stage 1 2849 * + NonSecure EL1 & 0 stage 2 2850 * + NonSecure EL2 2851 * + NonSecure EL2 & 0 (ARMv8.1-VHE) 2852 * + Secure EL1 & 0 2853 * + Secure EL3 2854 * If EL3 is 32-bit: 2855 * + NonSecure PL1 & 0 stage 1 2856 * + NonSecure PL1 & 0 stage 2 2857 * + NonSecure PL2 2858 * + Secure PL0 2859 * + Secure PL1 2860 * (reminder: for 32 bit EL3, Secure PL1 is *EL3*, not EL1.) 2861 * 2862 * For QEMU, an mmu_idx is not quite the same as a translation regime because: 2863 * 1. we need to split the "EL1 & 0" and "EL2 & 0" regimes into two mmu_idxes, 2864 * because they may differ in access permissions even if the VA->PA map is 2865 * the same 2866 * 2. we want to cache in our TLB the full VA->IPA->PA lookup for a stage 1+2 2867 * translation, which means that we have one mmu_idx that deals with two 2868 * concatenated translation regimes [this sort of combined s1+2 TLB is 2869 * architecturally permitted] 2870 * 3. we don't need to allocate an mmu_idx to translations that we won't be 2871 * handling via the TLB. The only way to do a stage 1 translation without 2872 * the immediate stage 2 translation is via the ATS or AT system insns, 2873 * which can be slow-pathed and always do a page table walk. 2874 * The only use of stage 2 translations is either as part of an s1+2 2875 * lookup or when loading the descriptors during a stage 1 page table walk, 2876 * and in both those cases we don't use the TLB. 2877 * 4. we can also safely fold together the "32 bit EL3" and "64 bit EL3" 2878 * translation regimes, because they map reasonably well to each other 2879 * and they can't both be active at the same time. 2880 * 5. we want to be able to use the TLB for accesses done as part of a 2881 * stage1 page table walk, rather than having to walk the stage2 page 2882 * table over and over. 2883 * 6. we need separate EL1/EL2 mmu_idx for handling the Privileged Access 2884 * Never (PAN) bit within PSTATE. 2885 * 7. we fold together the secure and non-secure regimes for A-profile, 2886 * because there are no banked system registers for aarch64, so the 2887 * process of switching between secure and non-secure is 2888 * already heavyweight. 2889 * 2890 * This gives us the following list of cases: 2891 * 2892 * EL0 EL1&0 stage 1+2 (aka NS PL0) 2893 * EL1 EL1&0 stage 1+2 (aka NS PL1) 2894 * EL1 EL1&0 stage 1+2 +PAN 2895 * EL0 EL2&0 2896 * EL2 EL2&0 2897 * EL2 EL2&0 +PAN 2898 * EL2 (aka NS PL2) 2899 * EL3 (aka S PL1) 2900 * Physical (NS & S) 2901 * Stage2 (NS & S) 2902 * 2903 * for a total of 12 different mmu_idx. 2904 * 2905 * R profile CPUs have an MPU, but can use the same set of MMU indexes 2906 * as A profile. They only need to distinguish EL0 and EL1 (and 2907 * EL2 if we ever model a Cortex-R52). 2908 * 2909 * M profile CPUs are rather different as they do not have a true MMU. 2910 * They have the following different MMU indexes: 2911 * User 2912 * Privileged 2913 * User, execution priority negative (ie the MPU HFNMIENA bit may apply) 2914 * Privileged, execution priority negative (ditto) 2915 * If the CPU supports the v8M Security Extension then there are also: 2916 * Secure User 2917 * Secure Privileged 2918 * Secure User, execution priority negative 2919 * Secure Privileged, execution priority negative 2920 * 2921 * The ARMMMUIdx and the mmu index value used by the core QEMU TLB code 2922 * are not quite the same -- different CPU types (most notably M profile 2923 * vs A/R profile) would like to use MMU indexes with different semantics, 2924 * but since we don't ever need to use all of those in a single CPU we 2925 * can avoid having to set NB_MMU_MODES to "total number of A profile MMU 2926 * modes + total number of M profile MMU modes". The lower bits of 2927 * ARMMMUIdx are the core TLB mmu index, and the higher bits are always 2928 * the same for any particular CPU. 2929 * Variables of type ARMMUIdx are always full values, and the core 2930 * index values are in variables of type 'int'. 2931 * 2932 * Our enumeration includes at the end some entries which are not "true" 2933 * mmu_idx values in that they don't have corresponding TLBs and are only 2934 * valid for doing slow path page table walks. 2935 * 2936 * The constant names here are patterned after the general style of the names 2937 * of the AT/ATS operations. 2938 * The values used are carefully arranged to make mmu_idx => EL lookup easy. 2939 * For M profile we arrange them to have a bit for priv, a bit for negpri 2940 * and a bit for secure. 2941 */ 2942 #define ARM_MMU_IDX_A 0x10 /* A profile */ 2943 #define ARM_MMU_IDX_NOTLB 0x20 /* does not have a TLB */ 2944 #define ARM_MMU_IDX_M 0x40 /* M profile */ 2945 2946 /* Meanings of the bits for M profile mmu idx values */ 2947 #define ARM_MMU_IDX_M_PRIV 0x1 2948 #define ARM_MMU_IDX_M_NEGPRI 0x2 2949 #define ARM_MMU_IDX_M_S 0x4 /* Secure */ 2950 2951 #define ARM_MMU_IDX_TYPE_MASK \ 2952 (ARM_MMU_IDX_A | ARM_MMU_IDX_M | ARM_MMU_IDX_NOTLB) 2953 #define ARM_MMU_IDX_COREIDX_MASK 0xf 2954 2955 typedef enum ARMMMUIdx { 2956 /* 2957 * A-profile. 2958 */ 2959 ARMMMUIdx_E10_0 = 0 | ARM_MMU_IDX_A, 2960 ARMMMUIdx_E20_0 = 1 | ARM_MMU_IDX_A, 2961 ARMMMUIdx_E10_1 = 2 | ARM_MMU_IDX_A, 2962 ARMMMUIdx_E20_2 = 3 | ARM_MMU_IDX_A, 2963 ARMMMUIdx_E10_1_PAN = 4 | ARM_MMU_IDX_A, 2964 ARMMMUIdx_E20_2_PAN = 5 | ARM_MMU_IDX_A, 2965 ARMMMUIdx_E2 = 6 | ARM_MMU_IDX_A, 2966 ARMMMUIdx_E3 = 7 | ARM_MMU_IDX_A, 2967 2968 /* 2969 * Used for second stage of an S12 page table walk, or for descriptor 2970 * loads during first stage of an S1 page table walk. Note that both 2971 * are in use simultaneously for SecureEL2: the security state for 2972 * the S2 ptw is selected by the NS bit from the S1 ptw. 2973 */ 2974 ARMMMUIdx_Stage2_S = 8 | ARM_MMU_IDX_A, 2975 ARMMMUIdx_Stage2 = 9 | ARM_MMU_IDX_A, 2976 2977 /* TLBs with 1-1 mapping to the physical address spaces. */ 2978 ARMMMUIdx_Phys_S = 10 | ARM_MMU_IDX_A, 2979 ARMMMUIdx_Phys_NS = 11 | ARM_MMU_IDX_A, 2980 ARMMMUIdx_Phys_Root = 12 | ARM_MMU_IDX_A, 2981 ARMMMUIdx_Phys_Realm = 13 | ARM_MMU_IDX_A, 2982 2983 /* 2984 * These are not allocated TLBs and are used only for AT system 2985 * instructions or for the first stage of an S12 page table walk. 2986 */ 2987 ARMMMUIdx_Stage1_E0 = 0 | ARM_MMU_IDX_NOTLB, 2988 ARMMMUIdx_Stage1_E1 = 1 | ARM_MMU_IDX_NOTLB, 2989 ARMMMUIdx_Stage1_E1_PAN = 2 | ARM_MMU_IDX_NOTLB, 2990 2991 /* 2992 * M-profile. 2993 */ 2994 ARMMMUIdx_MUser = ARM_MMU_IDX_M, 2995 ARMMMUIdx_MPriv = ARM_MMU_IDX_M | ARM_MMU_IDX_M_PRIV, 2996 ARMMMUIdx_MUserNegPri = ARMMMUIdx_MUser | ARM_MMU_IDX_M_NEGPRI, 2997 ARMMMUIdx_MPrivNegPri = ARMMMUIdx_MPriv | ARM_MMU_IDX_M_NEGPRI, 2998 ARMMMUIdx_MSUser = ARMMMUIdx_MUser | ARM_MMU_IDX_M_S, 2999 ARMMMUIdx_MSPriv = ARMMMUIdx_MPriv | ARM_MMU_IDX_M_S, 3000 ARMMMUIdx_MSUserNegPri = ARMMMUIdx_MUserNegPri | ARM_MMU_IDX_M_S, 3001 ARMMMUIdx_MSPrivNegPri = ARMMMUIdx_MPrivNegPri | ARM_MMU_IDX_M_S, 3002 } ARMMMUIdx; 3003 3004 /* 3005 * Bit macros for the core-mmu-index values for each index, 3006 * for use when calling tlb_flush_by_mmuidx() and friends. 3007 */ 3008 #define TO_CORE_BIT(NAME) \ 3009 ARMMMUIdxBit_##NAME = 1 << (ARMMMUIdx_##NAME & ARM_MMU_IDX_COREIDX_MASK) 3010 3011 typedef enum ARMMMUIdxBit { 3012 TO_CORE_BIT(E10_0), 3013 TO_CORE_BIT(E20_0), 3014 TO_CORE_BIT(E10_1), 3015 TO_CORE_BIT(E10_1_PAN), 3016 TO_CORE_BIT(E2), 3017 TO_CORE_BIT(E20_2), 3018 TO_CORE_BIT(E20_2_PAN), 3019 TO_CORE_BIT(E3), 3020 TO_CORE_BIT(Stage2), 3021 TO_CORE_BIT(Stage2_S), 3022 3023 TO_CORE_BIT(MUser), 3024 TO_CORE_BIT(MPriv), 3025 TO_CORE_BIT(MUserNegPri), 3026 TO_CORE_BIT(MPrivNegPri), 3027 TO_CORE_BIT(MSUser), 3028 TO_CORE_BIT(MSPriv), 3029 TO_CORE_BIT(MSUserNegPri), 3030 TO_CORE_BIT(MSPrivNegPri), 3031 } ARMMMUIdxBit; 3032 3033 #undef TO_CORE_BIT 3034 3035 #define MMU_USER_IDX 0 3036 3037 /* Indexes used when registering address spaces with cpu_address_space_init */ 3038 typedef enum ARMASIdx { 3039 ARMASIdx_NS = 0, 3040 ARMASIdx_S = 1, 3041 ARMASIdx_TagNS = 2, 3042 ARMASIdx_TagS = 3, 3043 } ARMASIdx; 3044 3045 static inline ARMMMUIdx arm_space_to_phys(ARMSecuritySpace space) 3046 { 3047 /* Assert the relative order of the physical mmu indexes. */ 3048 QEMU_BUILD_BUG_ON(ARMSS_Secure != 0); 3049 QEMU_BUILD_BUG_ON(ARMMMUIdx_Phys_NS != ARMMMUIdx_Phys_S + ARMSS_NonSecure); 3050 QEMU_BUILD_BUG_ON(ARMMMUIdx_Phys_Root != ARMMMUIdx_Phys_S + ARMSS_Root); 3051 QEMU_BUILD_BUG_ON(ARMMMUIdx_Phys_Realm != ARMMMUIdx_Phys_S + ARMSS_Realm); 3052 3053 return ARMMMUIdx_Phys_S + space; 3054 } 3055 3056 static inline ARMSecuritySpace arm_phys_to_space(ARMMMUIdx idx) 3057 { 3058 assert(idx >= ARMMMUIdx_Phys_S && idx <= ARMMMUIdx_Phys_Realm); 3059 return idx - ARMMMUIdx_Phys_S; 3060 } 3061 3062 static inline bool arm_v7m_csselr_razwi(ARMCPU *cpu) 3063 { 3064 /* If all the CLIDR.Ctypem bits are 0 there are no caches, and 3065 * CSSELR is RAZ/WI. 3066 */ 3067 return (cpu->clidr & R_V7M_CLIDR_CTYPE_ALL_MASK) != 0; 3068 } 3069 3070 static inline bool arm_sctlr_b(CPUARMState *env) 3071 { 3072 return 3073 /* We need not implement SCTLR.ITD in user-mode emulation, so 3074 * let linux-user ignore the fact that it conflicts with SCTLR_B. 3075 * This lets people run BE32 binaries with "-cpu any". 3076 */ 3077 #ifndef CONFIG_USER_ONLY 3078 !arm_feature(env, ARM_FEATURE_V7) && 3079 #endif 3080 (env->cp15.sctlr_el[1] & SCTLR_B) != 0; 3081 } 3082 3083 uint64_t arm_sctlr(CPUARMState *env, int el); 3084 3085 static inline bool arm_cpu_data_is_big_endian_a32(CPUARMState *env, 3086 bool sctlr_b) 3087 { 3088 #ifdef CONFIG_USER_ONLY 3089 /* 3090 * In system mode, BE32 is modelled in line with the 3091 * architecture (as word-invariant big-endianness), where loads 3092 * and stores are done little endian but from addresses which 3093 * are adjusted by XORing with the appropriate constant. So the 3094 * endianness to use for the raw data access is not affected by 3095 * SCTLR.B. 3096 * In user mode, however, we model BE32 as byte-invariant 3097 * big-endianness (because user-only code cannot tell the 3098 * difference), and so we need to use a data access endianness 3099 * that depends on SCTLR.B. 3100 */ 3101 if (sctlr_b) { 3102 return true; 3103 } 3104 #endif 3105 /* In 32bit endianness is determined by looking at CPSR's E bit */ 3106 return env->uncached_cpsr & CPSR_E; 3107 } 3108 3109 static inline bool arm_cpu_data_is_big_endian_a64(int el, uint64_t sctlr) 3110 { 3111 return sctlr & (el ? SCTLR_EE : SCTLR_E0E); 3112 } 3113 3114 /* Return true if the processor is in big-endian mode. */ 3115 static inline bool arm_cpu_data_is_big_endian(CPUARMState *env) 3116 { 3117 if (!is_a64(env)) { 3118 return arm_cpu_data_is_big_endian_a32(env, arm_sctlr_b(env)); 3119 } else { 3120 int cur_el = arm_current_el(env); 3121 uint64_t sctlr = arm_sctlr(env, cur_el); 3122 return arm_cpu_data_is_big_endian_a64(cur_el, sctlr); 3123 } 3124 } 3125 3126 #include "exec/cpu-all.h" 3127 3128 /* 3129 * We have more than 32-bits worth of state per TB, so we split the data 3130 * between tb->flags and tb->cs_base, which is otherwise unused for ARM. 3131 * We collect these two parts in CPUARMTBFlags where they are named 3132 * flags and flags2 respectively. 3133 * 3134 * The flags that are shared between all execution modes, TBFLAG_ANY, 3135 * are stored in flags. The flags that are specific to a given mode 3136 * are stores in flags2. Since cs_base is sized on the configured 3137 * address size, flags2 always has 64-bits for A64, and a minimum of 3138 * 32-bits for A32 and M32. 3139 * 3140 * The bits for 32-bit A-profile and M-profile partially overlap: 3141 * 3142 * 31 23 11 10 0 3143 * +-------------+----------+----------------+ 3144 * | | | TBFLAG_A32 | 3145 * | TBFLAG_AM32 | +-----+----------+ 3146 * | | |TBFLAG_M32| 3147 * +-------------+----------------+----------+ 3148 * 31 23 6 5 0 3149 * 3150 * Unless otherwise noted, these bits are cached in env->hflags. 3151 */ 3152 FIELD(TBFLAG_ANY, AARCH64_STATE, 0, 1) 3153 FIELD(TBFLAG_ANY, SS_ACTIVE, 1, 1) 3154 FIELD(TBFLAG_ANY, PSTATE__SS, 2, 1) /* Not cached. */ 3155 FIELD(TBFLAG_ANY, BE_DATA, 3, 1) 3156 FIELD(TBFLAG_ANY, MMUIDX, 4, 4) 3157 /* Target EL if we take a floating-point-disabled exception */ 3158 FIELD(TBFLAG_ANY, FPEXC_EL, 8, 2) 3159 /* Memory operations require alignment: SCTLR_ELx.A or CCR.UNALIGN_TRP */ 3160 FIELD(TBFLAG_ANY, ALIGN_MEM, 10, 1) 3161 FIELD(TBFLAG_ANY, PSTATE__IL, 11, 1) 3162 FIELD(TBFLAG_ANY, FGT_ACTIVE, 12, 1) 3163 FIELD(TBFLAG_ANY, FGT_SVC, 13, 1) 3164 3165 /* 3166 * Bit usage when in AArch32 state, both A- and M-profile. 3167 */ 3168 FIELD(TBFLAG_AM32, CONDEXEC, 24, 8) /* Not cached. */ 3169 FIELD(TBFLAG_AM32, THUMB, 23, 1) /* Not cached. */ 3170 3171 /* 3172 * Bit usage when in AArch32 state, for A-profile only. 3173 */ 3174 FIELD(TBFLAG_A32, VECLEN, 0, 3) /* Not cached. */ 3175 FIELD(TBFLAG_A32, VECSTRIDE, 3, 2) /* Not cached. */ 3176 /* 3177 * We store the bottom two bits of the CPAR as TB flags and handle 3178 * checks on the other bits at runtime. This shares the same bits as 3179 * VECSTRIDE, which is OK as no XScale CPU has VFP. 3180 * Not cached, because VECLEN+VECSTRIDE are not cached. 3181 */ 3182 FIELD(TBFLAG_A32, XSCALE_CPAR, 5, 2) 3183 FIELD(TBFLAG_A32, VFPEN, 7, 1) /* Partially cached, minus FPEXC. */ 3184 FIELD(TBFLAG_A32, SCTLR__B, 8, 1) /* Cannot overlap with SCTLR_B */ 3185 FIELD(TBFLAG_A32, HSTR_ACTIVE, 9, 1) 3186 /* 3187 * Indicates whether cp register reads and writes by guest code should access 3188 * the secure or nonsecure bank of banked registers; note that this is not 3189 * the same thing as the current security state of the processor! 3190 */ 3191 FIELD(TBFLAG_A32, NS, 10, 1) 3192 /* 3193 * Indicates that SME Streaming mode is active, and SMCR_ELx.FA64 is not. 3194 * This requires an SME trap from AArch32 mode when using NEON. 3195 */ 3196 FIELD(TBFLAG_A32, SME_TRAP_NONSTREAMING, 11, 1) 3197 3198 /* 3199 * Bit usage when in AArch32 state, for M-profile only. 3200 */ 3201 /* Handler (ie not Thread) mode */ 3202 FIELD(TBFLAG_M32, HANDLER, 0, 1) 3203 /* Whether we should generate stack-limit checks */ 3204 FIELD(TBFLAG_M32, STACKCHECK, 1, 1) 3205 /* Set if FPCCR.LSPACT is set */ 3206 FIELD(TBFLAG_M32, LSPACT, 2, 1) /* Not cached. */ 3207 /* Set if we must create a new FP context */ 3208 FIELD(TBFLAG_M32, NEW_FP_CTXT_NEEDED, 3, 1) /* Not cached. */ 3209 /* Set if FPCCR.S does not match current security state */ 3210 FIELD(TBFLAG_M32, FPCCR_S_WRONG, 4, 1) /* Not cached. */ 3211 /* Set if MVE insns are definitely not predicated by VPR or LTPSIZE */ 3212 FIELD(TBFLAG_M32, MVE_NO_PRED, 5, 1) /* Not cached. */ 3213 /* Set if in secure mode */ 3214 FIELD(TBFLAG_M32, SECURE, 6, 1) 3215 3216 /* 3217 * Bit usage when in AArch64 state 3218 */ 3219 FIELD(TBFLAG_A64, TBII, 0, 2) 3220 FIELD(TBFLAG_A64, SVEEXC_EL, 2, 2) 3221 /* The current vector length, either NVL or SVL. */ 3222 FIELD(TBFLAG_A64, VL, 4, 4) 3223 FIELD(TBFLAG_A64, PAUTH_ACTIVE, 8, 1) 3224 FIELD(TBFLAG_A64, BT, 9, 1) 3225 FIELD(TBFLAG_A64, BTYPE, 10, 2) /* Not cached. */ 3226 FIELD(TBFLAG_A64, TBID, 12, 2) 3227 FIELD(TBFLAG_A64, UNPRIV, 14, 1) 3228 FIELD(TBFLAG_A64, ATA, 15, 1) 3229 FIELD(TBFLAG_A64, TCMA, 16, 2) 3230 FIELD(TBFLAG_A64, MTE_ACTIVE, 18, 1) 3231 FIELD(TBFLAG_A64, MTE0_ACTIVE, 19, 1) 3232 FIELD(TBFLAG_A64, SMEEXC_EL, 20, 2) 3233 FIELD(TBFLAG_A64, PSTATE_SM, 22, 1) 3234 FIELD(TBFLAG_A64, PSTATE_ZA, 23, 1) 3235 FIELD(TBFLAG_A64, SVL, 24, 4) 3236 /* Indicates that SME Streaming mode is active, and SMCR_ELx.FA64 is not. */ 3237 FIELD(TBFLAG_A64, SME_TRAP_NONSTREAMING, 28, 1) 3238 FIELD(TBFLAG_A64, TRAP_ERET, 29, 1) 3239 FIELD(TBFLAG_A64, NAA, 30, 1) 3240 FIELD(TBFLAG_A64, ATA0, 31, 1) 3241 FIELD(TBFLAG_A64, NV, 32, 1) 3242 FIELD(TBFLAG_A64, NV1, 33, 1) 3243 FIELD(TBFLAG_A64, NV2, 34, 1) 3244 3245 /* 3246 * Helpers for using the above. Note that only the A64 accessors use 3247 * FIELD_DP64() and FIELD_EX64(), because in the other cases the flags 3248 * word either is or might be 32 bits only. 3249 */ 3250 #define DP_TBFLAG_ANY(DST, WHICH, VAL) \ 3251 (DST.flags = FIELD_DP32(DST.flags, TBFLAG_ANY, WHICH, VAL)) 3252 #define DP_TBFLAG_A64(DST, WHICH, VAL) \ 3253 (DST.flags2 = FIELD_DP64(DST.flags2, TBFLAG_A64, WHICH, VAL)) 3254 #define DP_TBFLAG_A32(DST, WHICH, VAL) \ 3255 (DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_A32, WHICH, VAL)) 3256 #define DP_TBFLAG_M32(DST, WHICH, VAL) \ 3257 (DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_M32, WHICH, VAL)) 3258 #define DP_TBFLAG_AM32(DST, WHICH, VAL) \ 3259 (DST.flags2 = FIELD_DP32(DST.flags2, TBFLAG_AM32, WHICH, VAL)) 3260 3261 #define EX_TBFLAG_ANY(IN, WHICH) FIELD_EX32(IN.flags, TBFLAG_ANY, WHICH) 3262 #define EX_TBFLAG_A64(IN, WHICH) FIELD_EX64(IN.flags2, TBFLAG_A64, WHICH) 3263 #define EX_TBFLAG_A32(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_A32, WHICH) 3264 #define EX_TBFLAG_M32(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_M32, WHICH) 3265 #define EX_TBFLAG_AM32(IN, WHICH) FIELD_EX32(IN.flags2, TBFLAG_AM32, WHICH) 3266 3267 /** 3268 * cpu_mmu_index: 3269 * @env: The cpu environment 3270 * @ifetch: True for code access, false for data access. 3271 * 3272 * Return the core mmu index for the current translation regime. 3273 * This function is used by generic TCG code paths. 3274 */ 3275 static inline int cpu_mmu_index(CPUARMState *env, bool ifetch) 3276 { 3277 return EX_TBFLAG_ANY(env->hflags, MMUIDX); 3278 } 3279 3280 /** 3281 * sve_vq 3282 * @env: the cpu context 3283 * 3284 * Return the VL cached within env->hflags, in units of quadwords. 3285 */ 3286 static inline int sve_vq(CPUARMState *env) 3287 { 3288 return EX_TBFLAG_A64(env->hflags, VL) + 1; 3289 } 3290 3291 /** 3292 * sme_vq 3293 * @env: the cpu context 3294 * 3295 * Return the SVL cached within env->hflags, in units of quadwords. 3296 */ 3297 static inline int sme_vq(CPUARMState *env) 3298 { 3299 return EX_TBFLAG_A64(env->hflags, SVL) + 1; 3300 } 3301 3302 static inline bool bswap_code(bool sctlr_b) 3303 { 3304 #ifdef CONFIG_USER_ONLY 3305 /* BE8 (SCTLR.B = 0, TARGET_BIG_ENDIAN = 1) is mixed endian. 3306 * The invalid combination SCTLR.B=1/CPSR.E=1/TARGET_BIG_ENDIAN=0 3307 * would also end up as a mixed-endian mode with BE code, LE data. 3308 */ 3309 return TARGET_BIG_ENDIAN ^ sctlr_b; 3310 #else 3311 /* All code access in ARM is little endian, and there are no loaders 3312 * doing swaps that need to be reversed 3313 */ 3314 return 0; 3315 #endif 3316 } 3317 3318 #ifdef CONFIG_USER_ONLY 3319 static inline bool arm_cpu_bswap_data(CPUARMState *env) 3320 { 3321 return TARGET_BIG_ENDIAN ^ arm_cpu_data_is_big_endian(env); 3322 } 3323 #endif 3324 3325 void cpu_get_tb_cpu_state(CPUARMState *env, vaddr *pc, 3326 uint64_t *cs_base, uint32_t *flags); 3327 3328 enum { 3329 QEMU_PSCI_CONDUIT_DISABLED = 0, 3330 QEMU_PSCI_CONDUIT_SMC = 1, 3331 QEMU_PSCI_CONDUIT_HVC = 2, 3332 }; 3333 3334 #ifndef CONFIG_USER_ONLY 3335 /* Return the address space index to use for a memory access */ 3336 static inline int arm_asidx_from_attrs(CPUState *cs, MemTxAttrs attrs) 3337 { 3338 return attrs.secure ? ARMASIdx_S : ARMASIdx_NS; 3339 } 3340 3341 /* Return the AddressSpace to use for a memory access 3342 * (which depends on whether the access is S or NS, and whether 3343 * the board gave us a separate AddressSpace for S accesses). 3344 */ 3345 static inline AddressSpace *arm_addressspace(CPUState *cs, MemTxAttrs attrs) 3346 { 3347 return cpu_get_address_space(cs, arm_asidx_from_attrs(cs, attrs)); 3348 } 3349 #endif 3350 3351 /** 3352 * arm_register_pre_el_change_hook: 3353 * Register a hook function which will be called immediately before this 3354 * CPU changes exception level or mode. The hook function will be 3355 * passed a pointer to the ARMCPU and the opaque data pointer passed 3356 * to this function when the hook was registered. 3357 * 3358 * Note that if a pre-change hook is called, any registered post-change hooks 3359 * are guaranteed to subsequently be called. 3360 */ 3361 void arm_register_pre_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, 3362 void *opaque); 3363 /** 3364 * arm_register_el_change_hook: 3365 * Register a hook function which will be called immediately after this 3366 * CPU changes exception level or mode. The hook function will be 3367 * passed a pointer to the ARMCPU and the opaque data pointer passed 3368 * to this function when the hook was registered. 3369 * 3370 * Note that any registered hooks registered here are guaranteed to be called 3371 * if pre-change hooks have been. 3372 */ 3373 void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, void 3374 *opaque); 3375 3376 /** 3377 * arm_rebuild_hflags: 3378 * Rebuild the cached TBFLAGS for arbitrary changed processor state. 3379 */ 3380 void arm_rebuild_hflags(CPUARMState *env); 3381 3382 /** 3383 * aa32_vfp_dreg: 3384 * Return a pointer to the Dn register within env in 32-bit mode. 3385 */ 3386 static inline uint64_t *aa32_vfp_dreg(CPUARMState *env, unsigned regno) 3387 { 3388 return &env->vfp.zregs[regno >> 1].d[regno & 1]; 3389 } 3390 3391 /** 3392 * aa32_vfp_qreg: 3393 * Return a pointer to the Qn register within env in 32-bit mode. 3394 */ 3395 static inline uint64_t *aa32_vfp_qreg(CPUARMState *env, unsigned regno) 3396 { 3397 return &env->vfp.zregs[regno].d[0]; 3398 } 3399 3400 /** 3401 * aa64_vfp_qreg: 3402 * Return a pointer to the Qn register within env in 64-bit mode. 3403 */ 3404 static inline uint64_t *aa64_vfp_qreg(CPUARMState *env, unsigned regno) 3405 { 3406 return &env->vfp.zregs[regno].d[0]; 3407 } 3408 3409 /* Shared between translate-sve.c and sve_helper.c. */ 3410 extern const uint64_t pred_esz_masks[5]; 3411 3412 /* 3413 * AArch64 usage of the PAGE_TARGET_* bits for linux-user. 3414 * Note that with the Linux kernel, PROT_MTE may not be cleared by mprotect 3415 * mprotect but PROT_BTI may be cleared. C.f. the kernel's VM_ARCH_CLEAR. 3416 */ 3417 #define PAGE_BTI PAGE_TARGET_1 3418 #define PAGE_MTE PAGE_TARGET_2 3419 #define PAGE_TARGET_STICKY PAGE_MTE 3420 3421 /* We associate one allocation tag per 16 bytes, the minimum. */ 3422 #define LOG2_TAG_GRANULE 4 3423 #define TAG_GRANULE (1 << LOG2_TAG_GRANULE) 3424 3425 #ifdef CONFIG_USER_ONLY 3426 #define TARGET_PAGE_DATA_SIZE (TARGET_PAGE_SIZE >> (LOG2_TAG_GRANULE + 1)) 3427 #endif 3428 3429 #ifdef TARGET_TAGGED_ADDRESSES 3430 /** 3431 * cpu_untagged_addr: 3432 * @cs: CPU context 3433 * @x: tagged address 3434 * 3435 * Remove any address tag from @x. This is explicitly related to the 3436 * linux syscall TIF_TAGGED_ADDR setting, not TBI in general. 3437 * 3438 * There should be a better place to put this, but we need this in 3439 * include/exec/cpu_ldst.h, and not some place linux-user specific. 3440 */ 3441 static inline target_ulong cpu_untagged_addr(CPUState *cs, target_ulong x) 3442 { 3443 ARMCPU *cpu = ARM_CPU(cs); 3444 if (cpu->env.tagged_addr_enable) { 3445 /* 3446 * TBI is enabled for userspace but not kernelspace addresses. 3447 * Only clear the tag if bit 55 is clear. 3448 */ 3449 x &= sextract64(x, 0, 56); 3450 } 3451 return x; 3452 } 3453 #endif 3454 3455 #endif 3456