1 /* 2 * QEMU ARM CPU 3 * 4 * Copyright (c) 2012 SUSE LINUX Products GmbH 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 2 9 * of the License, or (at your option) any later version. 10 * 11 * This program 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 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, see 18 * <http://www.gnu.org/licenses/gpl-2.0.html> 19 */ 20 21 #include "qemu/osdep.h" 22 #include "qemu/qemu-print.h" 23 #include "qemu-common.h" 24 #include "target/arm/idau.h" 25 #include "qemu/module.h" 26 #include "qapi/error.h" 27 #include "qapi/visitor.h" 28 #include "cpu.h" 29 #include "internals.h" 30 #include "exec/exec-all.h" 31 #include "hw/qdev-properties.h" 32 #if !defined(CONFIG_USER_ONLY) 33 #include "hw/loader.h" 34 #include "hw/boards.h" 35 #endif 36 #include "sysemu/sysemu.h" 37 #include "sysemu/tcg.h" 38 #include "sysemu/hw_accel.h" 39 #include "kvm_arm.h" 40 #include "disas/capstone.h" 41 #include "fpu/softfloat.h" 42 43 static void arm_cpu_set_pc(CPUState *cs, vaddr value) 44 { 45 ARMCPU *cpu = ARM_CPU(cs); 46 CPUARMState *env = &cpu->env; 47 48 if (is_a64(env)) { 49 env->pc = value; 50 env->thumb = 0; 51 } else { 52 env->regs[15] = value & ~1; 53 env->thumb = value & 1; 54 } 55 } 56 57 static void arm_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb) 58 { 59 ARMCPU *cpu = ARM_CPU(cs); 60 CPUARMState *env = &cpu->env; 61 62 /* 63 * It's OK to look at env for the current mode here, because it's 64 * never possible for an AArch64 TB to chain to an AArch32 TB. 65 */ 66 if (is_a64(env)) { 67 env->pc = tb->pc; 68 } else { 69 env->regs[15] = tb->pc; 70 } 71 } 72 73 static bool arm_cpu_has_work(CPUState *cs) 74 { 75 ARMCPU *cpu = ARM_CPU(cs); 76 77 return (cpu->power_state != PSCI_OFF) 78 && cs->interrupt_request & 79 (CPU_INTERRUPT_FIQ | CPU_INTERRUPT_HARD 80 | CPU_INTERRUPT_VFIQ | CPU_INTERRUPT_VIRQ 81 | CPU_INTERRUPT_EXITTB); 82 } 83 84 void arm_register_pre_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, 85 void *opaque) 86 { 87 ARMELChangeHook *entry = g_new0(ARMELChangeHook, 1); 88 89 entry->hook = hook; 90 entry->opaque = opaque; 91 92 QLIST_INSERT_HEAD(&cpu->pre_el_change_hooks, entry, node); 93 } 94 95 void arm_register_el_change_hook(ARMCPU *cpu, ARMELChangeHookFn *hook, 96 void *opaque) 97 { 98 ARMELChangeHook *entry = g_new0(ARMELChangeHook, 1); 99 100 entry->hook = hook; 101 entry->opaque = opaque; 102 103 QLIST_INSERT_HEAD(&cpu->el_change_hooks, entry, node); 104 } 105 106 static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque) 107 { 108 /* Reset a single ARMCPRegInfo register */ 109 ARMCPRegInfo *ri = value; 110 ARMCPU *cpu = opaque; 111 112 if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS)) { 113 return; 114 } 115 116 if (ri->resetfn) { 117 ri->resetfn(&cpu->env, ri); 118 return; 119 } 120 121 /* A zero offset is never possible as it would be regs[0] 122 * so we use it to indicate that reset is being handled elsewhere. 123 * This is basically only used for fields in non-core coprocessors 124 * (like the pxa2xx ones). 125 */ 126 if (!ri->fieldoffset) { 127 return; 128 } 129 130 if (cpreg_field_is_64bit(ri)) { 131 CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue; 132 } else { 133 CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue; 134 } 135 } 136 137 static void cp_reg_check_reset(gpointer key, gpointer value, gpointer opaque) 138 { 139 /* Purely an assertion check: we've already done reset once, 140 * so now check that running the reset for the cpreg doesn't 141 * change its value. This traps bugs where two different cpregs 142 * both try to reset the same state field but to different values. 143 */ 144 ARMCPRegInfo *ri = value; 145 ARMCPU *cpu = opaque; 146 uint64_t oldvalue, newvalue; 147 148 if (ri->type & (ARM_CP_SPECIAL | ARM_CP_ALIAS | ARM_CP_NO_RAW)) { 149 return; 150 } 151 152 oldvalue = read_raw_cp_reg(&cpu->env, ri); 153 cp_reg_reset(key, value, opaque); 154 newvalue = read_raw_cp_reg(&cpu->env, ri); 155 assert(oldvalue == newvalue); 156 } 157 158 /* CPUClass::reset() */ 159 static void arm_cpu_reset(CPUState *s) 160 { 161 ARMCPU *cpu = ARM_CPU(s); 162 ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu); 163 CPUARMState *env = &cpu->env; 164 165 acc->parent_reset(s); 166 167 memset(env, 0, offsetof(CPUARMState, end_reset_fields)); 168 169 g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu); 170 g_hash_table_foreach(cpu->cp_regs, cp_reg_check_reset, cpu); 171 172 env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid; 173 env->vfp.xregs[ARM_VFP_MVFR0] = cpu->isar.mvfr0; 174 env->vfp.xregs[ARM_VFP_MVFR1] = cpu->isar.mvfr1; 175 env->vfp.xregs[ARM_VFP_MVFR2] = cpu->isar.mvfr2; 176 177 cpu->power_state = cpu->start_powered_off ? PSCI_OFF : PSCI_ON; 178 s->halted = cpu->start_powered_off; 179 180 if (arm_feature(env, ARM_FEATURE_IWMMXT)) { 181 env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q'; 182 } 183 184 if (arm_feature(env, ARM_FEATURE_AARCH64)) { 185 /* 64 bit CPUs always start in 64 bit mode */ 186 env->aarch64 = 1; 187 #if defined(CONFIG_USER_ONLY) 188 env->pstate = PSTATE_MODE_EL0t; 189 /* Userspace expects access to DC ZVA, CTL_EL0 and the cache ops */ 190 env->cp15.sctlr_el[1] |= SCTLR_UCT | SCTLR_UCI | SCTLR_DZE; 191 /* Enable all PAC keys. */ 192 env->cp15.sctlr_el[1] |= (SCTLR_EnIA | SCTLR_EnIB | 193 SCTLR_EnDA | SCTLR_EnDB); 194 /* Enable all PAC instructions */ 195 env->cp15.hcr_el2 |= HCR_API; 196 env->cp15.scr_el3 |= SCR_API; 197 /* and to the FP/Neon instructions */ 198 env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 2, 3); 199 /* and to the SVE instructions */ 200 env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 16, 2, 3); 201 env->cp15.cptr_el[3] |= CPTR_EZ; 202 /* with maximum vector length */ 203 env->vfp.zcr_el[1] = cpu_isar_feature(aa64_sve, cpu) ? 204 cpu->sve_max_vq - 1 : 0; 205 env->vfp.zcr_el[2] = env->vfp.zcr_el[1]; 206 env->vfp.zcr_el[3] = env->vfp.zcr_el[1]; 207 /* 208 * Enable TBI0 and TBI1. While the real kernel only enables TBI0, 209 * turning on both here will produce smaller code and otherwise 210 * make no difference to the user-level emulation. 211 */ 212 env->cp15.tcr_el[1].raw_tcr = (3ULL << 37); 213 #else 214 /* Reset into the highest available EL */ 215 if (arm_feature(env, ARM_FEATURE_EL3)) { 216 env->pstate = PSTATE_MODE_EL3h; 217 } else if (arm_feature(env, ARM_FEATURE_EL2)) { 218 env->pstate = PSTATE_MODE_EL2h; 219 } else { 220 env->pstate = PSTATE_MODE_EL1h; 221 } 222 env->pc = cpu->rvbar; 223 #endif 224 } else { 225 #if defined(CONFIG_USER_ONLY) 226 /* Userspace expects access to cp10 and cp11 for FP/Neon */ 227 env->cp15.cpacr_el1 = deposit64(env->cp15.cpacr_el1, 20, 4, 0xf); 228 #endif 229 } 230 231 #if defined(CONFIG_USER_ONLY) 232 env->uncached_cpsr = ARM_CPU_MODE_USR; 233 /* For user mode we must enable access to coprocessors */ 234 env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30; 235 if (arm_feature(env, ARM_FEATURE_IWMMXT)) { 236 env->cp15.c15_cpar = 3; 237 } else if (arm_feature(env, ARM_FEATURE_XSCALE)) { 238 env->cp15.c15_cpar = 1; 239 } 240 #else 241 242 /* 243 * If the highest available EL is EL2, AArch32 will start in Hyp 244 * mode; otherwise it starts in SVC. Note that if we start in 245 * AArch64 then these values in the uncached_cpsr will be ignored. 246 */ 247 if (arm_feature(env, ARM_FEATURE_EL2) && 248 !arm_feature(env, ARM_FEATURE_EL3)) { 249 env->uncached_cpsr = ARM_CPU_MODE_HYP; 250 } else { 251 env->uncached_cpsr = ARM_CPU_MODE_SVC; 252 } 253 env->daif = PSTATE_D | PSTATE_A | PSTATE_I | PSTATE_F; 254 255 if (arm_feature(env, ARM_FEATURE_M)) { 256 uint32_t initial_msp; /* Loaded from 0x0 */ 257 uint32_t initial_pc; /* Loaded from 0x4 */ 258 uint8_t *rom; 259 uint32_t vecbase; 260 261 if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { 262 env->v7m.secure = true; 263 } else { 264 /* This bit resets to 0 if security is supported, but 1 if 265 * it is not. The bit is not present in v7M, but we set it 266 * here so we can avoid having to make checks on it conditional 267 * on ARM_FEATURE_V8 (we don't let the guest see the bit). 268 */ 269 env->v7m.aircr = R_V7M_AIRCR_BFHFNMINS_MASK; 270 /* 271 * Set NSACR to indicate "NS access permitted to everything"; 272 * this avoids having to have all the tests of it being 273 * conditional on ARM_FEATURE_M_SECURITY. Note also that from 274 * v8.1M the guest-visible value of NSACR in a CPU without the 275 * Security Extension is 0xcff. 276 */ 277 env->v7m.nsacr = 0xcff; 278 } 279 280 /* In v7M the reset value of this bit is IMPDEF, but ARM recommends 281 * that it resets to 1, so QEMU always does that rather than making 282 * it dependent on CPU model. In v8M it is RES1. 283 */ 284 env->v7m.ccr[M_REG_NS] = R_V7M_CCR_STKALIGN_MASK; 285 env->v7m.ccr[M_REG_S] = R_V7M_CCR_STKALIGN_MASK; 286 if (arm_feature(env, ARM_FEATURE_V8)) { 287 /* in v8M the NONBASETHRDENA bit [0] is RES1 */ 288 env->v7m.ccr[M_REG_NS] |= R_V7M_CCR_NONBASETHRDENA_MASK; 289 env->v7m.ccr[M_REG_S] |= R_V7M_CCR_NONBASETHRDENA_MASK; 290 } 291 if (!arm_feature(env, ARM_FEATURE_M_MAIN)) { 292 env->v7m.ccr[M_REG_NS] |= R_V7M_CCR_UNALIGN_TRP_MASK; 293 env->v7m.ccr[M_REG_S] |= R_V7M_CCR_UNALIGN_TRP_MASK; 294 } 295 296 if (arm_feature(env, ARM_FEATURE_VFP)) { 297 env->v7m.fpccr[M_REG_NS] = R_V7M_FPCCR_ASPEN_MASK; 298 env->v7m.fpccr[M_REG_S] = R_V7M_FPCCR_ASPEN_MASK | 299 R_V7M_FPCCR_LSPEN_MASK | R_V7M_FPCCR_S_MASK; 300 } 301 /* Unlike A/R profile, M profile defines the reset LR value */ 302 env->regs[14] = 0xffffffff; 303 304 env->v7m.vecbase[M_REG_S] = cpu->init_svtor & 0xffffff80; 305 306 /* Load the initial SP and PC from offset 0 and 4 in the vector table */ 307 vecbase = env->v7m.vecbase[env->v7m.secure]; 308 rom = rom_ptr(vecbase, 8); 309 if (rom) { 310 /* Address zero is covered by ROM which hasn't yet been 311 * copied into physical memory. 312 */ 313 initial_msp = ldl_p(rom); 314 initial_pc = ldl_p(rom + 4); 315 } else { 316 /* Address zero not covered by a ROM blob, or the ROM blob 317 * is in non-modifiable memory and this is a second reset after 318 * it got copied into memory. In the latter case, rom_ptr 319 * will return a NULL pointer and we should use ldl_phys instead. 320 */ 321 initial_msp = ldl_phys(s->as, vecbase); 322 initial_pc = ldl_phys(s->as, vecbase + 4); 323 } 324 325 env->regs[13] = initial_msp & 0xFFFFFFFC; 326 env->regs[15] = initial_pc & ~1; 327 env->thumb = initial_pc & 1; 328 } 329 330 /* AArch32 has a hard highvec setting of 0xFFFF0000. If we are currently 331 * executing as AArch32 then check if highvecs are enabled and 332 * adjust the PC accordingly. 333 */ 334 if (A32_BANKED_CURRENT_REG_GET(env, sctlr) & SCTLR_V) { 335 env->regs[15] = 0xFFFF0000; 336 } 337 338 /* M profile requires that reset clears the exclusive monitor; 339 * A profile does not, but clearing it makes more sense than having it 340 * set with an exclusive access on address zero. 341 */ 342 arm_clear_exclusive(env); 343 344 env->vfp.xregs[ARM_VFP_FPEXC] = 0; 345 #endif 346 347 if (arm_feature(env, ARM_FEATURE_PMSA)) { 348 if (cpu->pmsav7_dregion > 0) { 349 if (arm_feature(env, ARM_FEATURE_V8)) { 350 memset(env->pmsav8.rbar[M_REG_NS], 0, 351 sizeof(*env->pmsav8.rbar[M_REG_NS]) 352 * cpu->pmsav7_dregion); 353 memset(env->pmsav8.rlar[M_REG_NS], 0, 354 sizeof(*env->pmsav8.rlar[M_REG_NS]) 355 * cpu->pmsav7_dregion); 356 if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { 357 memset(env->pmsav8.rbar[M_REG_S], 0, 358 sizeof(*env->pmsav8.rbar[M_REG_S]) 359 * cpu->pmsav7_dregion); 360 memset(env->pmsav8.rlar[M_REG_S], 0, 361 sizeof(*env->pmsav8.rlar[M_REG_S]) 362 * cpu->pmsav7_dregion); 363 } 364 } else if (arm_feature(env, ARM_FEATURE_V7)) { 365 memset(env->pmsav7.drbar, 0, 366 sizeof(*env->pmsav7.drbar) * cpu->pmsav7_dregion); 367 memset(env->pmsav7.drsr, 0, 368 sizeof(*env->pmsav7.drsr) * cpu->pmsav7_dregion); 369 memset(env->pmsav7.dracr, 0, 370 sizeof(*env->pmsav7.dracr) * cpu->pmsav7_dregion); 371 } 372 } 373 env->pmsav7.rnr[M_REG_NS] = 0; 374 env->pmsav7.rnr[M_REG_S] = 0; 375 env->pmsav8.mair0[M_REG_NS] = 0; 376 env->pmsav8.mair0[M_REG_S] = 0; 377 env->pmsav8.mair1[M_REG_NS] = 0; 378 env->pmsav8.mair1[M_REG_S] = 0; 379 } 380 381 if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { 382 if (cpu->sau_sregion > 0) { 383 memset(env->sau.rbar, 0, sizeof(*env->sau.rbar) * cpu->sau_sregion); 384 memset(env->sau.rlar, 0, sizeof(*env->sau.rlar) * cpu->sau_sregion); 385 } 386 env->sau.rnr = 0; 387 /* SAU_CTRL reset value is IMPDEF; we choose 0, which is what 388 * the Cortex-M33 does. 389 */ 390 env->sau.ctrl = 0; 391 } 392 393 set_flush_to_zero(1, &env->vfp.standard_fp_status); 394 set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status); 395 set_default_nan_mode(1, &env->vfp.standard_fp_status); 396 set_float_detect_tininess(float_tininess_before_rounding, 397 &env->vfp.fp_status); 398 set_float_detect_tininess(float_tininess_before_rounding, 399 &env->vfp.standard_fp_status); 400 set_float_detect_tininess(float_tininess_before_rounding, 401 &env->vfp.fp_status_f16); 402 #ifndef CONFIG_USER_ONLY 403 if (kvm_enabled()) { 404 kvm_arm_reset_vcpu(cpu); 405 } 406 #endif 407 408 hw_breakpoint_update_all(cpu); 409 hw_watchpoint_update_all(cpu); 410 arm_rebuild_hflags(env); 411 } 412 413 bool arm_cpu_exec_interrupt(CPUState *cs, int interrupt_request) 414 { 415 CPUClass *cc = CPU_GET_CLASS(cs); 416 CPUARMState *env = cs->env_ptr; 417 uint32_t cur_el = arm_current_el(env); 418 bool secure = arm_is_secure(env); 419 uint32_t target_el; 420 uint32_t excp_idx; 421 bool ret = false; 422 423 if (interrupt_request & CPU_INTERRUPT_FIQ) { 424 excp_idx = EXCP_FIQ; 425 target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure); 426 if (arm_excp_unmasked(cs, excp_idx, target_el)) { 427 cs->exception_index = excp_idx; 428 env->exception.target_el = target_el; 429 cc->do_interrupt(cs); 430 ret = true; 431 } 432 } 433 if (interrupt_request & CPU_INTERRUPT_HARD) { 434 excp_idx = EXCP_IRQ; 435 target_el = arm_phys_excp_target_el(cs, excp_idx, cur_el, secure); 436 if (arm_excp_unmasked(cs, excp_idx, target_el)) { 437 cs->exception_index = excp_idx; 438 env->exception.target_el = target_el; 439 cc->do_interrupt(cs); 440 ret = true; 441 } 442 } 443 if (interrupt_request & CPU_INTERRUPT_VIRQ) { 444 excp_idx = EXCP_VIRQ; 445 target_el = 1; 446 if (arm_excp_unmasked(cs, excp_idx, target_el)) { 447 cs->exception_index = excp_idx; 448 env->exception.target_el = target_el; 449 cc->do_interrupt(cs); 450 ret = true; 451 } 452 } 453 if (interrupt_request & CPU_INTERRUPT_VFIQ) { 454 excp_idx = EXCP_VFIQ; 455 target_el = 1; 456 if (arm_excp_unmasked(cs, excp_idx, target_el)) { 457 cs->exception_index = excp_idx; 458 env->exception.target_el = target_el; 459 cc->do_interrupt(cs); 460 ret = true; 461 } 462 } 463 464 return ret; 465 } 466 467 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) 468 static bool arm_v7m_cpu_exec_interrupt(CPUState *cs, int interrupt_request) 469 { 470 CPUClass *cc = CPU_GET_CLASS(cs); 471 ARMCPU *cpu = ARM_CPU(cs); 472 CPUARMState *env = &cpu->env; 473 bool ret = false; 474 475 /* ARMv7-M interrupt masking works differently than -A or -R. 476 * There is no FIQ/IRQ distinction. Instead of I and F bits 477 * masking FIQ and IRQ interrupts, an exception is taken only 478 * if it is higher priority than the current execution priority 479 * (which depends on state like BASEPRI, FAULTMASK and the 480 * currently active exception). 481 */ 482 if (interrupt_request & CPU_INTERRUPT_HARD 483 && (armv7m_nvic_can_take_pending_exception(env->nvic))) { 484 cs->exception_index = EXCP_IRQ; 485 cc->do_interrupt(cs); 486 ret = true; 487 } 488 return ret; 489 } 490 #endif 491 492 void arm_cpu_update_virq(ARMCPU *cpu) 493 { 494 /* 495 * Update the interrupt level for VIRQ, which is the logical OR of 496 * the HCR_EL2.VI bit and the input line level from the GIC. 497 */ 498 CPUARMState *env = &cpu->env; 499 CPUState *cs = CPU(cpu); 500 501 bool new_state = (env->cp15.hcr_el2 & HCR_VI) || 502 (env->irq_line_state & CPU_INTERRUPT_VIRQ); 503 504 if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VIRQ) != 0)) { 505 if (new_state) { 506 cpu_interrupt(cs, CPU_INTERRUPT_VIRQ); 507 } else { 508 cpu_reset_interrupt(cs, CPU_INTERRUPT_VIRQ); 509 } 510 } 511 } 512 513 void arm_cpu_update_vfiq(ARMCPU *cpu) 514 { 515 /* 516 * Update the interrupt level for VFIQ, which is the logical OR of 517 * the HCR_EL2.VF bit and the input line level from the GIC. 518 */ 519 CPUARMState *env = &cpu->env; 520 CPUState *cs = CPU(cpu); 521 522 bool new_state = (env->cp15.hcr_el2 & HCR_VF) || 523 (env->irq_line_state & CPU_INTERRUPT_VFIQ); 524 525 if (new_state != ((cs->interrupt_request & CPU_INTERRUPT_VFIQ) != 0)) { 526 if (new_state) { 527 cpu_interrupt(cs, CPU_INTERRUPT_VFIQ); 528 } else { 529 cpu_reset_interrupt(cs, CPU_INTERRUPT_VFIQ); 530 } 531 } 532 } 533 534 #ifndef CONFIG_USER_ONLY 535 static void arm_cpu_set_irq(void *opaque, int irq, int level) 536 { 537 ARMCPU *cpu = opaque; 538 CPUARMState *env = &cpu->env; 539 CPUState *cs = CPU(cpu); 540 static const int mask[] = { 541 [ARM_CPU_IRQ] = CPU_INTERRUPT_HARD, 542 [ARM_CPU_FIQ] = CPU_INTERRUPT_FIQ, 543 [ARM_CPU_VIRQ] = CPU_INTERRUPT_VIRQ, 544 [ARM_CPU_VFIQ] = CPU_INTERRUPT_VFIQ 545 }; 546 547 if (level) { 548 env->irq_line_state |= mask[irq]; 549 } else { 550 env->irq_line_state &= ~mask[irq]; 551 } 552 553 switch (irq) { 554 case ARM_CPU_VIRQ: 555 assert(arm_feature(env, ARM_FEATURE_EL2)); 556 arm_cpu_update_virq(cpu); 557 break; 558 case ARM_CPU_VFIQ: 559 assert(arm_feature(env, ARM_FEATURE_EL2)); 560 arm_cpu_update_vfiq(cpu); 561 break; 562 case ARM_CPU_IRQ: 563 case ARM_CPU_FIQ: 564 if (level) { 565 cpu_interrupt(cs, mask[irq]); 566 } else { 567 cpu_reset_interrupt(cs, mask[irq]); 568 } 569 break; 570 default: 571 g_assert_not_reached(); 572 } 573 } 574 575 static void arm_cpu_kvm_set_irq(void *opaque, int irq, int level) 576 { 577 #ifdef CONFIG_KVM 578 ARMCPU *cpu = opaque; 579 CPUARMState *env = &cpu->env; 580 CPUState *cs = CPU(cpu); 581 uint32_t linestate_bit; 582 int irq_id; 583 584 switch (irq) { 585 case ARM_CPU_IRQ: 586 irq_id = KVM_ARM_IRQ_CPU_IRQ; 587 linestate_bit = CPU_INTERRUPT_HARD; 588 break; 589 case ARM_CPU_FIQ: 590 irq_id = KVM_ARM_IRQ_CPU_FIQ; 591 linestate_bit = CPU_INTERRUPT_FIQ; 592 break; 593 default: 594 g_assert_not_reached(); 595 } 596 597 if (level) { 598 env->irq_line_state |= linestate_bit; 599 } else { 600 env->irq_line_state &= ~linestate_bit; 601 } 602 kvm_arm_set_irq(cs->cpu_index, KVM_ARM_IRQ_TYPE_CPU, irq_id, !!level); 603 #endif 604 } 605 606 static bool arm_cpu_virtio_is_big_endian(CPUState *cs) 607 { 608 ARMCPU *cpu = ARM_CPU(cs); 609 CPUARMState *env = &cpu->env; 610 611 cpu_synchronize_state(cs); 612 return arm_cpu_data_is_big_endian(env); 613 } 614 615 #endif 616 617 static inline void set_feature(CPUARMState *env, int feature) 618 { 619 env->features |= 1ULL << feature; 620 } 621 622 static inline void unset_feature(CPUARMState *env, int feature) 623 { 624 env->features &= ~(1ULL << feature); 625 } 626 627 static int 628 print_insn_thumb1(bfd_vma pc, disassemble_info *info) 629 { 630 return print_insn_arm(pc | 1, info); 631 } 632 633 static void arm_disas_set_info(CPUState *cpu, disassemble_info *info) 634 { 635 ARMCPU *ac = ARM_CPU(cpu); 636 CPUARMState *env = &ac->env; 637 bool sctlr_b; 638 639 if (is_a64(env)) { 640 /* We might not be compiled with the A64 disassembler 641 * because it needs a C++ compiler. Leave print_insn 642 * unset in this case to use the caller default behaviour. 643 */ 644 #if defined(CONFIG_ARM_A64_DIS) 645 info->print_insn = print_insn_arm_a64; 646 #endif 647 info->cap_arch = CS_ARCH_ARM64; 648 info->cap_insn_unit = 4; 649 info->cap_insn_split = 4; 650 } else { 651 int cap_mode; 652 if (env->thumb) { 653 info->print_insn = print_insn_thumb1; 654 info->cap_insn_unit = 2; 655 info->cap_insn_split = 4; 656 cap_mode = CS_MODE_THUMB; 657 } else { 658 info->print_insn = print_insn_arm; 659 info->cap_insn_unit = 4; 660 info->cap_insn_split = 4; 661 cap_mode = CS_MODE_ARM; 662 } 663 if (arm_feature(env, ARM_FEATURE_V8)) { 664 cap_mode |= CS_MODE_V8; 665 } 666 if (arm_feature(env, ARM_FEATURE_M)) { 667 cap_mode |= CS_MODE_MCLASS; 668 } 669 info->cap_arch = CS_ARCH_ARM; 670 info->cap_mode = cap_mode; 671 } 672 673 sctlr_b = arm_sctlr_b(env); 674 if (bswap_code(sctlr_b)) { 675 #ifdef TARGET_WORDS_BIGENDIAN 676 info->endian = BFD_ENDIAN_LITTLE; 677 #else 678 info->endian = BFD_ENDIAN_BIG; 679 #endif 680 } 681 info->flags &= ~INSN_ARM_BE32; 682 #ifndef CONFIG_USER_ONLY 683 if (sctlr_b) { 684 info->flags |= INSN_ARM_BE32; 685 } 686 #endif 687 } 688 689 #ifdef TARGET_AARCH64 690 691 static void aarch64_cpu_dump_state(CPUState *cs, FILE *f, int flags) 692 { 693 ARMCPU *cpu = ARM_CPU(cs); 694 CPUARMState *env = &cpu->env; 695 uint32_t psr = pstate_read(env); 696 int i; 697 int el = arm_current_el(env); 698 const char *ns_status; 699 700 qemu_fprintf(f, " PC=%016" PRIx64 " ", env->pc); 701 for (i = 0; i < 32; i++) { 702 if (i == 31) { 703 qemu_fprintf(f, " SP=%016" PRIx64 "\n", env->xregs[i]); 704 } else { 705 qemu_fprintf(f, "X%02d=%016" PRIx64 "%s", i, env->xregs[i], 706 (i + 2) % 3 ? " " : "\n"); 707 } 708 } 709 710 if (arm_feature(env, ARM_FEATURE_EL3) && el != 3) { 711 ns_status = env->cp15.scr_el3 & SCR_NS ? "NS " : "S "; 712 } else { 713 ns_status = ""; 714 } 715 qemu_fprintf(f, "PSTATE=%08x %c%c%c%c %sEL%d%c", 716 psr, 717 psr & PSTATE_N ? 'N' : '-', 718 psr & PSTATE_Z ? 'Z' : '-', 719 psr & PSTATE_C ? 'C' : '-', 720 psr & PSTATE_V ? 'V' : '-', 721 ns_status, 722 el, 723 psr & PSTATE_SP ? 'h' : 't'); 724 725 if (cpu_isar_feature(aa64_bti, cpu)) { 726 qemu_fprintf(f, " BTYPE=%d", (psr & PSTATE_BTYPE) >> 10); 727 } 728 if (!(flags & CPU_DUMP_FPU)) { 729 qemu_fprintf(f, "\n"); 730 return; 731 } 732 if (fp_exception_el(env, el) != 0) { 733 qemu_fprintf(f, " FPU disabled\n"); 734 return; 735 } 736 qemu_fprintf(f, " FPCR=%08x FPSR=%08x\n", 737 vfp_get_fpcr(env), vfp_get_fpsr(env)); 738 739 if (cpu_isar_feature(aa64_sve, cpu) && sve_exception_el(env, el) == 0) { 740 int j, zcr_len = sve_zcr_len_for_el(env, el); 741 742 for (i = 0; i <= FFR_PRED_NUM; i++) { 743 bool eol; 744 if (i == FFR_PRED_NUM) { 745 qemu_fprintf(f, "FFR="); 746 /* It's last, so end the line. */ 747 eol = true; 748 } else { 749 qemu_fprintf(f, "P%02d=", i); 750 switch (zcr_len) { 751 case 0: 752 eol = i % 8 == 7; 753 break; 754 case 1: 755 eol = i % 6 == 5; 756 break; 757 case 2: 758 case 3: 759 eol = i % 3 == 2; 760 break; 761 default: 762 /* More than one quadword per predicate. */ 763 eol = true; 764 break; 765 } 766 } 767 for (j = zcr_len / 4; j >= 0; j--) { 768 int digits; 769 if (j * 4 + 4 <= zcr_len + 1) { 770 digits = 16; 771 } else { 772 digits = (zcr_len % 4 + 1) * 4; 773 } 774 qemu_fprintf(f, "%0*" PRIx64 "%s", digits, 775 env->vfp.pregs[i].p[j], 776 j ? ":" : eol ? "\n" : " "); 777 } 778 } 779 780 for (i = 0; i < 32; i++) { 781 if (zcr_len == 0) { 782 qemu_fprintf(f, "Z%02d=%016" PRIx64 ":%016" PRIx64 "%s", 783 i, env->vfp.zregs[i].d[1], 784 env->vfp.zregs[i].d[0], i & 1 ? "\n" : " "); 785 } else if (zcr_len == 1) { 786 qemu_fprintf(f, "Z%02d=%016" PRIx64 ":%016" PRIx64 787 ":%016" PRIx64 ":%016" PRIx64 "\n", 788 i, env->vfp.zregs[i].d[3], env->vfp.zregs[i].d[2], 789 env->vfp.zregs[i].d[1], env->vfp.zregs[i].d[0]); 790 } else { 791 for (j = zcr_len; j >= 0; j--) { 792 bool odd = (zcr_len - j) % 2 != 0; 793 if (j == zcr_len) { 794 qemu_fprintf(f, "Z%02d[%x-%x]=", i, j, j - 1); 795 } else if (!odd) { 796 if (j > 0) { 797 qemu_fprintf(f, " [%x-%x]=", j, j - 1); 798 } else { 799 qemu_fprintf(f, " [%x]=", j); 800 } 801 } 802 qemu_fprintf(f, "%016" PRIx64 ":%016" PRIx64 "%s", 803 env->vfp.zregs[i].d[j * 2 + 1], 804 env->vfp.zregs[i].d[j * 2], 805 odd || j == 0 ? "\n" : ":"); 806 } 807 } 808 } 809 } else { 810 for (i = 0; i < 32; i++) { 811 uint64_t *q = aa64_vfp_qreg(env, i); 812 qemu_fprintf(f, "Q%02d=%016" PRIx64 ":%016" PRIx64 "%s", 813 i, q[1], q[0], (i & 1 ? "\n" : " ")); 814 } 815 } 816 } 817 818 #else 819 820 static inline void aarch64_cpu_dump_state(CPUState *cs, FILE *f, int flags) 821 { 822 g_assert_not_reached(); 823 } 824 825 #endif 826 827 static void arm_cpu_dump_state(CPUState *cs, FILE *f, int flags) 828 { 829 ARMCPU *cpu = ARM_CPU(cs); 830 CPUARMState *env = &cpu->env; 831 int i; 832 833 if (is_a64(env)) { 834 aarch64_cpu_dump_state(cs, f, flags); 835 return; 836 } 837 838 for (i = 0; i < 16; i++) { 839 qemu_fprintf(f, "R%02d=%08x", i, env->regs[i]); 840 if ((i % 4) == 3) { 841 qemu_fprintf(f, "\n"); 842 } else { 843 qemu_fprintf(f, " "); 844 } 845 } 846 847 if (arm_feature(env, ARM_FEATURE_M)) { 848 uint32_t xpsr = xpsr_read(env); 849 const char *mode; 850 const char *ns_status = ""; 851 852 if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { 853 ns_status = env->v7m.secure ? "S " : "NS "; 854 } 855 856 if (xpsr & XPSR_EXCP) { 857 mode = "handler"; 858 } else { 859 if (env->v7m.control[env->v7m.secure] & R_V7M_CONTROL_NPRIV_MASK) { 860 mode = "unpriv-thread"; 861 } else { 862 mode = "priv-thread"; 863 } 864 } 865 866 qemu_fprintf(f, "XPSR=%08x %c%c%c%c %c %s%s\n", 867 xpsr, 868 xpsr & XPSR_N ? 'N' : '-', 869 xpsr & XPSR_Z ? 'Z' : '-', 870 xpsr & XPSR_C ? 'C' : '-', 871 xpsr & XPSR_V ? 'V' : '-', 872 xpsr & XPSR_T ? 'T' : 'A', 873 ns_status, 874 mode); 875 } else { 876 uint32_t psr = cpsr_read(env); 877 const char *ns_status = ""; 878 879 if (arm_feature(env, ARM_FEATURE_EL3) && 880 (psr & CPSR_M) != ARM_CPU_MODE_MON) { 881 ns_status = env->cp15.scr_el3 & SCR_NS ? "NS " : "S "; 882 } 883 884 qemu_fprintf(f, "PSR=%08x %c%c%c%c %c %s%s%d\n", 885 psr, 886 psr & CPSR_N ? 'N' : '-', 887 psr & CPSR_Z ? 'Z' : '-', 888 psr & CPSR_C ? 'C' : '-', 889 psr & CPSR_V ? 'V' : '-', 890 psr & CPSR_T ? 'T' : 'A', 891 ns_status, 892 aarch32_mode_name(psr), (psr & 0x10) ? 32 : 26); 893 } 894 895 if (flags & CPU_DUMP_FPU) { 896 int numvfpregs = 0; 897 if (arm_feature(env, ARM_FEATURE_VFP)) { 898 numvfpregs += 16; 899 } 900 if (arm_feature(env, ARM_FEATURE_VFP3)) { 901 numvfpregs += 16; 902 } 903 for (i = 0; i < numvfpregs; i++) { 904 uint64_t v = *aa32_vfp_dreg(env, i); 905 qemu_fprintf(f, "s%02d=%08x s%02d=%08x d%02d=%016" PRIx64 "\n", 906 i * 2, (uint32_t)v, 907 i * 2 + 1, (uint32_t)(v >> 32), 908 i, v); 909 } 910 qemu_fprintf(f, "FPSCR: %08x\n", vfp_get_fpscr(env)); 911 } 912 } 913 914 uint64_t arm_cpu_mp_affinity(int idx, uint8_t clustersz) 915 { 916 uint32_t Aff1 = idx / clustersz; 917 uint32_t Aff0 = idx % clustersz; 918 return (Aff1 << ARM_AFF1_SHIFT) | Aff0; 919 } 920 921 static void cpreg_hashtable_data_destroy(gpointer data) 922 { 923 /* 924 * Destroy function for cpu->cp_regs hashtable data entries. 925 * We must free the name string because it was g_strdup()ed in 926 * add_cpreg_to_hashtable(). It's OK to cast away the 'const' 927 * from r->name because we know we definitely allocated it. 928 */ 929 ARMCPRegInfo *r = data; 930 931 g_free((void *)r->name); 932 g_free(r); 933 } 934 935 static void arm_cpu_initfn(Object *obj) 936 { 937 ARMCPU *cpu = ARM_CPU(obj); 938 939 cpu_set_cpustate_pointers(cpu); 940 cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal, 941 g_free, cpreg_hashtable_data_destroy); 942 943 QLIST_INIT(&cpu->pre_el_change_hooks); 944 QLIST_INIT(&cpu->el_change_hooks); 945 946 #ifndef CONFIG_USER_ONLY 947 /* Our inbound IRQ and FIQ lines */ 948 if (kvm_enabled()) { 949 /* VIRQ and VFIQ are unused with KVM but we add them to maintain 950 * the same interface as non-KVM CPUs. 951 */ 952 qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 4); 953 } else { 954 qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 4); 955 } 956 957 qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs, 958 ARRAY_SIZE(cpu->gt_timer_outputs)); 959 960 qdev_init_gpio_out_named(DEVICE(cpu), &cpu->gicv3_maintenance_interrupt, 961 "gicv3-maintenance-interrupt", 1); 962 qdev_init_gpio_out_named(DEVICE(cpu), &cpu->pmu_interrupt, 963 "pmu-interrupt", 1); 964 #endif 965 966 /* DTB consumers generally don't in fact care what the 'compatible' 967 * string is, so always provide some string and trust that a hypothetical 968 * picky DTB consumer will also provide a helpful error message. 969 */ 970 cpu->dtb_compatible = "qemu,unknown"; 971 cpu->psci_version = 1; /* By default assume PSCI v0.1 */ 972 cpu->kvm_target = QEMU_KVM_ARM_TARGET_NONE; 973 974 if (tcg_enabled()) { 975 cpu->psci_version = 2; /* TCG implements PSCI 0.2 */ 976 } 977 } 978 979 static Property arm_cpu_gt_cntfrq_property = 980 DEFINE_PROP_UINT64("cntfrq", ARMCPU, gt_cntfrq_hz, 981 NANOSECONDS_PER_SECOND / GTIMER_SCALE); 982 983 static Property arm_cpu_reset_cbar_property = 984 DEFINE_PROP_UINT64("reset-cbar", ARMCPU, reset_cbar, 0); 985 986 static Property arm_cpu_reset_hivecs_property = 987 DEFINE_PROP_BOOL("reset-hivecs", ARMCPU, reset_hivecs, false); 988 989 static Property arm_cpu_rvbar_property = 990 DEFINE_PROP_UINT64("rvbar", ARMCPU, rvbar, 0); 991 992 static Property arm_cpu_has_el2_property = 993 DEFINE_PROP_BOOL("has_el2", ARMCPU, has_el2, true); 994 995 static Property arm_cpu_has_el3_property = 996 DEFINE_PROP_BOOL("has_el3", ARMCPU, has_el3, true); 997 998 static Property arm_cpu_cfgend_property = 999 DEFINE_PROP_BOOL("cfgend", ARMCPU, cfgend, false); 1000 1001 static Property arm_cpu_has_vfp_property = 1002 DEFINE_PROP_BOOL("vfp", ARMCPU, has_vfp, true); 1003 1004 static Property arm_cpu_has_neon_property = 1005 DEFINE_PROP_BOOL("neon", ARMCPU, has_neon, true); 1006 1007 static Property arm_cpu_has_dsp_property = 1008 DEFINE_PROP_BOOL("dsp", ARMCPU, has_dsp, true); 1009 1010 static Property arm_cpu_has_mpu_property = 1011 DEFINE_PROP_BOOL("has-mpu", ARMCPU, has_mpu, true); 1012 1013 /* This is like DEFINE_PROP_UINT32 but it doesn't set the default value, 1014 * because the CPU initfn will have already set cpu->pmsav7_dregion to 1015 * the right value for that particular CPU type, and we don't want 1016 * to override that with an incorrect constant value. 1017 */ 1018 static Property arm_cpu_pmsav7_dregion_property = 1019 DEFINE_PROP_UNSIGNED_NODEFAULT("pmsav7-dregion", ARMCPU, 1020 pmsav7_dregion, 1021 qdev_prop_uint32, uint32_t); 1022 1023 static bool arm_get_pmu(Object *obj, Error **errp) 1024 { 1025 ARMCPU *cpu = ARM_CPU(obj); 1026 1027 return cpu->has_pmu; 1028 } 1029 1030 static void arm_set_pmu(Object *obj, bool value, Error **errp) 1031 { 1032 ARMCPU *cpu = ARM_CPU(obj); 1033 1034 if (value) { 1035 if (kvm_enabled() && !kvm_arm_pmu_supported(CPU(cpu))) { 1036 error_setg(errp, "'pmu' feature not supported by KVM on this host"); 1037 return; 1038 } 1039 set_feature(&cpu->env, ARM_FEATURE_PMU); 1040 } else { 1041 unset_feature(&cpu->env, ARM_FEATURE_PMU); 1042 } 1043 cpu->has_pmu = value; 1044 } 1045 1046 static void arm_get_init_svtor(Object *obj, Visitor *v, const char *name, 1047 void *opaque, Error **errp) 1048 { 1049 ARMCPU *cpu = ARM_CPU(obj); 1050 1051 visit_type_uint32(v, name, &cpu->init_svtor, errp); 1052 } 1053 1054 static void arm_set_init_svtor(Object *obj, Visitor *v, const char *name, 1055 void *opaque, Error **errp) 1056 { 1057 ARMCPU *cpu = ARM_CPU(obj); 1058 1059 visit_type_uint32(v, name, &cpu->init_svtor, errp); 1060 } 1061 1062 unsigned int gt_cntfrq_period_ns(ARMCPU *cpu) 1063 { 1064 /* 1065 * The exact approach to calculating guest ticks is: 1066 * 1067 * muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), cpu->gt_cntfrq_hz, 1068 * NANOSECONDS_PER_SECOND); 1069 * 1070 * We don't do that. Rather we intentionally use integer division 1071 * truncation below and in the caller for the conversion of host monotonic 1072 * time to guest ticks to provide the exact inverse for the semantics of 1073 * the QEMUTimer scale factor. QEMUTimer's scale facter is an integer, so 1074 * it loses precision when representing frequencies where 1075 * `(NANOSECONDS_PER_SECOND % cpu->gt_cntfrq) > 0` holds. Failing to 1076 * provide an exact inverse leads to scheduling timers with negative 1077 * periods, which in turn leads to sticky behaviour in the guest. 1078 * 1079 * Finally, CNTFRQ is effectively capped at 1GHz to ensure our scale factor 1080 * cannot become zero. 1081 */ 1082 return NANOSECONDS_PER_SECOND > cpu->gt_cntfrq_hz ? 1083 NANOSECONDS_PER_SECOND / cpu->gt_cntfrq_hz : 1; 1084 } 1085 1086 void arm_cpu_post_init(Object *obj) 1087 { 1088 ARMCPU *cpu = ARM_CPU(obj); 1089 1090 /* M profile implies PMSA. We have to do this here rather than 1091 * in realize with the other feature-implication checks because 1092 * we look at the PMSA bit to see if we should add some properties. 1093 */ 1094 if (arm_feature(&cpu->env, ARM_FEATURE_M)) { 1095 set_feature(&cpu->env, ARM_FEATURE_PMSA); 1096 } 1097 /* Similarly for the VFP feature bits */ 1098 if (arm_feature(&cpu->env, ARM_FEATURE_VFP4)) { 1099 set_feature(&cpu->env, ARM_FEATURE_VFP3); 1100 } 1101 if (arm_feature(&cpu->env, ARM_FEATURE_VFP3)) { 1102 set_feature(&cpu->env, ARM_FEATURE_VFP); 1103 } 1104 1105 if (arm_feature(&cpu->env, ARM_FEATURE_CBAR) || 1106 arm_feature(&cpu->env, ARM_FEATURE_CBAR_RO)) { 1107 qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_cbar_property, 1108 &error_abort); 1109 } 1110 1111 if (!arm_feature(&cpu->env, ARM_FEATURE_M)) { 1112 qdev_property_add_static(DEVICE(obj), &arm_cpu_reset_hivecs_property, 1113 &error_abort); 1114 } 1115 1116 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { 1117 qdev_property_add_static(DEVICE(obj), &arm_cpu_rvbar_property, 1118 &error_abort); 1119 } 1120 1121 if (arm_feature(&cpu->env, ARM_FEATURE_EL3)) { 1122 /* Add the has_el3 state CPU property only if EL3 is allowed. This will 1123 * prevent "has_el3" from existing on CPUs which cannot support EL3. 1124 */ 1125 qdev_property_add_static(DEVICE(obj), &arm_cpu_has_el3_property, 1126 &error_abort); 1127 1128 #ifndef CONFIG_USER_ONLY 1129 object_property_add_link(obj, "secure-memory", 1130 TYPE_MEMORY_REGION, 1131 (Object **)&cpu->secure_memory, 1132 qdev_prop_allow_set_link_before_realize, 1133 OBJ_PROP_LINK_STRONG, 1134 &error_abort); 1135 #endif 1136 } 1137 1138 if (arm_feature(&cpu->env, ARM_FEATURE_EL2)) { 1139 qdev_property_add_static(DEVICE(obj), &arm_cpu_has_el2_property, 1140 &error_abort); 1141 } 1142 1143 if (arm_feature(&cpu->env, ARM_FEATURE_PMU)) { 1144 cpu->has_pmu = true; 1145 object_property_add_bool(obj, "pmu", arm_get_pmu, arm_set_pmu, 1146 &error_abort); 1147 } 1148 1149 /* 1150 * Allow user to turn off VFP and Neon support, but only for TCG -- 1151 * KVM does not currently allow us to lie to the guest about its 1152 * ID/feature registers, so the guest always sees what the host has. 1153 */ 1154 if (arm_feature(&cpu->env, ARM_FEATURE_VFP)) { 1155 cpu->has_vfp = true; 1156 if (!kvm_enabled()) { 1157 qdev_property_add_static(DEVICE(obj), &arm_cpu_has_vfp_property, 1158 &error_abort); 1159 } 1160 } 1161 1162 if (arm_feature(&cpu->env, ARM_FEATURE_NEON)) { 1163 cpu->has_neon = true; 1164 if (!kvm_enabled()) { 1165 qdev_property_add_static(DEVICE(obj), &arm_cpu_has_neon_property, 1166 &error_abort); 1167 } 1168 } 1169 1170 if (arm_feature(&cpu->env, ARM_FEATURE_M) && 1171 arm_feature(&cpu->env, ARM_FEATURE_THUMB_DSP)) { 1172 qdev_property_add_static(DEVICE(obj), &arm_cpu_has_dsp_property, 1173 &error_abort); 1174 } 1175 1176 if (arm_feature(&cpu->env, ARM_FEATURE_PMSA)) { 1177 qdev_property_add_static(DEVICE(obj), &arm_cpu_has_mpu_property, 1178 &error_abort); 1179 if (arm_feature(&cpu->env, ARM_FEATURE_V7)) { 1180 qdev_property_add_static(DEVICE(obj), 1181 &arm_cpu_pmsav7_dregion_property, 1182 &error_abort); 1183 } 1184 } 1185 1186 if (arm_feature(&cpu->env, ARM_FEATURE_M_SECURITY)) { 1187 object_property_add_link(obj, "idau", TYPE_IDAU_INTERFACE, &cpu->idau, 1188 qdev_prop_allow_set_link_before_realize, 1189 OBJ_PROP_LINK_STRONG, 1190 &error_abort); 1191 /* 1192 * M profile: initial value of the Secure VTOR. We can't just use 1193 * a simple DEFINE_PROP_UINT32 for this because we want to permit 1194 * the property to be set after realize. 1195 */ 1196 object_property_add(obj, "init-svtor", "uint32", 1197 arm_get_init_svtor, arm_set_init_svtor, 1198 NULL, NULL, &error_abort); 1199 } 1200 1201 qdev_property_add_static(DEVICE(obj), &arm_cpu_cfgend_property, 1202 &error_abort); 1203 1204 if (arm_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER)) { 1205 qdev_property_add_static(DEVICE(cpu), &arm_cpu_gt_cntfrq_property, 1206 &error_abort); 1207 } 1208 } 1209 1210 static void arm_cpu_finalizefn(Object *obj) 1211 { 1212 ARMCPU *cpu = ARM_CPU(obj); 1213 ARMELChangeHook *hook, *next; 1214 1215 g_hash_table_destroy(cpu->cp_regs); 1216 1217 QLIST_FOREACH_SAFE(hook, &cpu->pre_el_change_hooks, node, next) { 1218 QLIST_REMOVE(hook, node); 1219 g_free(hook); 1220 } 1221 QLIST_FOREACH_SAFE(hook, &cpu->el_change_hooks, node, next) { 1222 QLIST_REMOVE(hook, node); 1223 g_free(hook); 1224 } 1225 #ifndef CONFIG_USER_ONLY 1226 if (cpu->pmu_timer) { 1227 timer_del(cpu->pmu_timer); 1228 timer_deinit(cpu->pmu_timer); 1229 timer_free(cpu->pmu_timer); 1230 } 1231 #endif 1232 } 1233 1234 void arm_cpu_finalize_features(ARMCPU *cpu, Error **errp) 1235 { 1236 Error *local_err = NULL; 1237 1238 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { 1239 arm_cpu_sve_finalize(cpu, &local_err); 1240 if (local_err != NULL) { 1241 error_propagate(errp, local_err); 1242 return; 1243 } 1244 } 1245 } 1246 1247 static void arm_cpu_realizefn(DeviceState *dev, Error **errp) 1248 { 1249 CPUState *cs = CPU(dev); 1250 ARMCPU *cpu = ARM_CPU(dev); 1251 ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev); 1252 CPUARMState *env = &cpu->env; 1253 int pagebits; 1254 Error *local_err = NULL; 1255 bool no_aa32 = false; 1256 1257 /* If we needed to query the host kernel for the CPU features 1258 * then it's possible that might have failed in the initfn, but 1259 * this is the first point where we can report it. 1260 */ 1261 if (cpu->host_cpu_probe_failed) { 1262 if (!kvm_enabled()) { 1263 error_setg(errp, "The 'host' CPU type can only be used with KVM"); 1264 } else { 1265 error_setg(errp, "Failed to retrieve host CPU features"); 1266 } 1267 return; 1268 } 1269 1270 #ifndef CONFIG_USER_ONLY 1271 /* The NVIC and M-profile CPU are two halves of a single piece of 1272 * hardware; trying to use one without the other is a command line 1273 * error and will result in segfaults if not caught here. 1274 */ 1275 if (arm_feature(env, ARM_FEATURE_M)) { 1276 if (!env->nvic) { 1277 error_setg(errp, "This board cannot be used with Cortex-M CPUs"); 1278 return; 1279 } 1280 } else { 1281 if (env->nvic) { 1282 error_setg(errp, "This board can only be used with Cortex-M CPUs"); 1283 return; 1284 } 1285 } 1286 1287 1288 { 1289 uint64_t scale; 1290 1291 if (arm_feature(env, ARM_FEATURE_GENERIC_TIMER)) { 1292 if (!cpu->gt_cntfrq_hz) { 1293 error_setg(errp, "Invalid CNTFRQ: %"PRId64"Hz", 1294 cpu->gt_cntfrq_hz); 1295 return; 1296 } 1297 scale = gt_cntfrq_period_ns(cpu); 1298 } else { 1299 scale = GTIMER_SCALE; 1300 } 1301 1302 cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, scale, 1303 arm_gt_ptimer_cb, cpu); 1304 cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, scale, 1305 arm_gt_vtimer_cb, cpu); 1306 cpu->gt_timer[GTIMER_HYP] = timer_new(QEMU_CLOCK_VIRTUAL, scale, 1307 arm_gt_htimer_cb, cpu); 1308 cpu->gt_timer[GTIMER_SEC] = timer_new(QEMU_CLOCK_VIRTUAL, scale, 1309 arm_gt_stimer_cb, cpu); 1310 } 1311 #endif 1312 1313 cpu_exec_realizefn(cs, &local_err); 1314 if (local_err != NULL) { 1315 error_propagate(errp, local_err); 1316 return; 1317 } 1318 1319 arm_cpu_finalize_features(cpu, &local_err); 1320 if (local_err != NULL) { 1321 error_propagate(errp, local_err); 1322 return; 1323 } 1324 1325 if (arm_feature(env, ARM_FEATURE_AARCH64) && 1326 cpu->has_vfp != cpu->has_neon) { 1327 /* 1328 * This is an architectural requirement for AArch64; AArch32 is 1329 * more flexible and permits VFP-no-Neon and Neon-no-VFP. 1330 */ 1331 error_setg(errp, 1332 "AArch64 CPUs must have both VFP and Neon or neither"); 1333 return; 1334 } 1335 1336 if (!cpu->has_vfp) { 1337 uint64_t t; 1338 uint32_t u; 1339 1340 unset_feature(env, ARM_FEATURE_VFP); 1341 unset_feature(env, ARM_FEATURE_VFP3); 1342 unset_feature(env, ARM_FEATURE_VFP4); 1343 1344 t = cpu->isar.id_aa64isar1; 1345 t = FIELD_DP64(t, ID_AA64ISAR1, JSCVT, 0); 1346 cpu->isar.id_aa64isar1 = t; 1347 1348 t = cpu->isar.id_aa64pfr0; 1349 t = FIELD_DP64(t, ID_AA64PFR0, FP, 0xf); 1350 cpu->isar.id_aa64pfr0 = t; 1351 1352 u = cpu->isar.id_isar6; 1353 u = FIELD_DP32(u, ID_ISAR6, JSCVT, 0); 1354 cpu->isar.id_isar6 = u; 1355 1356 u = cpu->isar.mvfr0; 1357 u = FIELD_DP32(u, MVFR0, FPSP, 0); 1358 u = FIELD_DP32(u, MVFR0, FPDP, 0); 1359 u = FIELD_DP32(u, MVFR0, FPTRAP, 0); 1360 u = FIELD_DP32(u, MVFR0, FPDIVIDE, 0); 1361 u = FIELD_DP32(u, MVFR0, FPSQRT, 0); 1362 u = FIELD_DP32(u, MVFR0, FPSHVEC, 0); 1363 u = FIELD_DP32(u, MVFR0, FPROUND, 0); 1364 cpu->isar.mvfr0 = u; 1365 1366 u = cpu->isar.mvfr1; 1367 u = FIELD_DP32(u, MVFR1, FPFTZ, 0); 1368 u = FIELD_DP32(u, MVFR1, FPDNAN, 0); 1369 u = FIELD_DP32(u, MVFR1, FPHP, 0); 1370 cpu->isar.mvfr1 = u; 1371 1372 u = cpu->isar.mvfr2; 1373 u = FIELD_DP32(u, MVFR2, FPMISC, 0); 1374 cpu->isar.mvfr2 = u; 1375 } 1376 1377 if (!cpu->has_neon) { 1378 uint64_t t; 1379 uint32_t u; 1380 1381 unset_feature(env, ARM_FEATURE_NEON); 1382 1383 t = cpu->isar.id_aa64isar0; 1384 t = FIELD_DP64(t, ID_AA64ISAR0, DP, 0); 1385 cpu->isar.id_aa64isar0 = t; 1386 1387 t = cpu->isar.id_aa64isar1; 1388 t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 0); 1389 cpu->isar.id_aa64isar1 = t; 1390 1391 t = cpu->isar.id_aa64pfr0; 1392 t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 0xf); 1393 cpu->isar.id_aa64pfr0 = t; 1394 1395 u = cpu->isar.id_isar5; 1396 u = FIELD_DP32(u, ID_ISAR5, RDM, 0); 1397 u = FIELD_DP32(u, ID_ISAR5, VCMA, 0); 1398 cpu->isar.id_isar5 = u; 1399 1400 u = cpu->isar.id_isar6; 1401 u = FIELD_DP32(u, ID_ISAR6, DP, 0); 1402 u = FIELD_DP32(u, ID_ISAR6, FHM, 0); 1403 cpu->isar.id_isar6 = u; 1404 1405 u = cpu->isar.mvfr1; 1406 u = FIELD_DP32(u, MVFR1, SIMDLS, 0); 1407 u = FIELD_DP32(u, MVFR1, SIMDINT, 0); 1408 u = FIELD_DP32(u, MVFR1, SIMDSP, 0); 1409 u = FIELD_DP32(u, MVFR1, SIMDHP, 0); 1410 u = FIELD_DP32(u, MVFR1, SIMDFMAC, 0); 1411 cpu->isar.mvfr1 = u; 1412 1413 u = cpu->isar.mvfr2; 1414 u = FIELD_DP32(u, MVFR2, SIMDMISC, 0); 1415 cpu->isar.mvfr2 = u; 1416 } 1417 1418 if (!cpu->has_neon && !cpu->has_vfp) { 1419 uint64_t t; 1420 uint32_t u; 1421 1422 t = cpu->isar.id_aa64isar0; 1423 t = FIELD_DP64(t, ID_AA64ISAR0, FHM, 0); 1424 cpu->isar.id_aa64isar0 = t; 1425 1426 t = cpu->isar.id_aa64isar1; 1427 t = FIELD_DP64(t, ID_AA64ISAR1, FRINTTS, 0); 1428 cpu->isar.id_aa64isar1 = t; 1429 1430 u = cpu->isar.mvfr0; 1431 u = FIELD_DP32(u, MVFR0, SIMDREG, 0); 1432 cpu->isar.mvfr0 = u; 1433 } 1434 1435 if (arm_feature(env, ARM_FEATURE_M) && !cpu->has_dsp) { 1436 uint32_t u; 1437 1438 unset_feature(env, ARM_FEATURE_THUMB_DSP); 1439 1440 u = cpu->isar.id_isar1; 1441 u = FIELD_DP32(u, ID_ISAR1, EXTEND, 1); 1442 cpu->isar.id_isar1 = u; 1443 1444 u = cpu->isar.id_isar2; 1445 u = FIELD_DP32(u, ID_ISAR2, MULTU, 1); 1446 u = FIELD_DP32(u, ID_ISAR2, MULTS, 1); 1447 cpu->isar.id_isar2 = u; 1448 1449 u = cpu->isar.id_isar3; 1450 u = FIELD_DP32(u, ID_ISAR3, SIMD, 1); 1451 u = FIELD_DP32(u, ID_ISAR3, SATURATE, 0); 1452 cpu->isar.id_isar3 = u; 1453 } 1454 1455 /* Some features automatically imply others: */ 1456 if (arm_feature(env, ARM_FEATURE_V8)) { 1457 if (arm_feature(env, ARM_FEATURE_M)) { 1458 set_feature(env, ARM_FEATURE_V7); 1459 } else { 1460 set_feature(env, ARM_FEATURE_V7VE); 1461 } 1462 } 1463 1464 /* 1465 * There exist AArch64 cpus without AArch32 support. When KVM 1466 * queries ID_ISAR0_EL1 on such a host, the value is UNKNOWN. 1467 * Similarly, we cannot check ID_AA64PFR0 without AArch64 support. 1468 * As a general principle, we also do not make ID register 1469 * consistency checks anywhere unless using TCG, because only 1470 * for TCG would a consistency-check failure be a QEMU bug. 1471 */ 1472 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { 1473 no_aa32 = !cpu_isar_feature(aa64_aa32, cpu); 1474 } 1475 1476 if (arm_feature(env, ARM_FEATURE_V7VE)) { 1477 /* v7 Virtualization Extensions. In real hardware this implies 1478 * EL2 and also the presence of the Security Extensions. 1479 * For QEMU, for backwards-compatibility we implement some 1480 * CPUs or CPU configs which have no actual EL2 or EL3 but do 1481 * include the various other features that V7VE implies. 1482 * Presence of EL2 itself is ARM_FEATURE_EL2, and of the 1483 * Security Extensions is ARM_FEATURE_EL3. 1484 */ 1485 assert(!tcg_enabled() || no_aa32 || cpu_isar_feature(arm_div, cpu)); 1486 set_feature(env, ARM_FEATURE_LPAE); 1487 set_feature(env, ARM_FEATURE_V7); 1488 } 1489 if (arm_feature(env, ARM_FEATURE_V7)) { 1490 set_feature(env, ARM_FEATURE_VAPA); 1491 set_feature(env, ARM_FEATURE_THUMB2); 1492 set_feature(env, ARM_FEATURE_MPIDR); 1493 if (!arm_feature(env, ARM_FEATURE_M)) { 1494 set_feature(env, ARM_FEATURE_V6K); 1495 } else { 1496 set_feature(env, ARM_FEATURE_V6); 1497 } 1498 1499 /* Always define VBAR for V7 CPUs even if it doesn't exist in 1500 * non-EL3 configs. This is needed by some legacy boards. 1501 */ 1502 set_feature(env, ARM_FEATURE_VBAR); 1503 } 1504 if (arm_feature(env, ARM_FEATURE_V6K)) { 1505 set_feature(env, ARM_FEATURE_V6); 1506 set_feature(env, ARM_FEATURE_MVFR); 1507 } 1508 if (arm_feature(env, ARM_FEATURE_V6)) { 1509 set_feature(env, ARM_FEATURE_V5); 1510 if (!arm_feature(env, ARM_FEATURE_M)) { 1511 assert(!tcg_enabled() || no_aa32 || cpu_isar_feature(jazelle, cpu)); 1512 set_feature(env, ARM_FEATURE_AUXCR); 1513 } 1514 } 1515 if (arm_feature(env, ARM_FEATURE_V5)) { 1516 set_feature(env, ARM_FEATURE_V4T); 1517 } 1518 if (arm_feature(env, ARM_FEATURE_LPAE)) { 1519 set_feature(env, ARM_FEATURE_V7MP); 1520 set_feature(env, ARM_FEATURE_PXN); 1521 } 1522 if (arm_feature(env, ARM_FEATURE_CBAR_RO)) { 1523 set_feature(env, ARM_FEATURE_CBAR); 1524 } 1525 if (arm_feature(env, ARM_FEATURE_THUMB2) && 1526 !arm_feature(env, ARM_FEATURE_M)) { 1527 set_feature(env, ARM_FEATURE_THUMB_DSP); 1528 } 1529 1530 /* 1531 * We rely on no XScale CPU having VFP so we can use the same bits in the 1532 * TB flags field for VECSTRIDE and XSCALE_CPAR. 1533 */ 1534 assert(!(arm_feature(env, ARM_FEATURE_VFP) && 1535 arm_feature(env, ARM_FEATURE_XSCALE))); 1536 1537 if (arm_feature(env, ARM_FEATURE_V7) && 1538 !arm_feature(env, ARM_FEATURE_M) && 1539 !arm_feature(env, ARM_FEATURE_PMSA)) { 1540 /* v7VMSA drops support for the old ARMv5 tiny pages, so we 1541 * can use 4K pages. 1542 */ 1543 pagebits = 12; 1544 } else { 1545 /* For CPUs which might have tiny 1K pages, or which have an 1546 * MPU and might have small region sizes, stick with 1K pages. 1547 */ 1548 pagebits = 10; 1549 } 1550 if (!set_preferred_target_page_bits(pagebits)) { 1551 /* This can only ever happen for hotplugging a CPU, or if 1552 * the board code incorrectly creates a CPU which it has 1553 * promised via minimum_page_size that it will not. 1554 */ 1555 error_setg(errp, "This CPU requires a smaller page size than the " 1556 "system is using"); 1557 return; 1558 } 1559 1560 /* This cpu-id-to-MPIDR affinity is used only for TCG; KVM will override it. 1561 * We don't support setting cluster ID ([16..23]) (known as Aff2 1562 * in later ARM ARM versions), or any of the higher affinity level fields, 1563 * so these bits always RAZ. 1564 */ 1565 if (cpu->mp_affinity == ARM64_AFFINITY_INVALID) { 1566 cpu->mp_affinity = arm_cpu_mp_affinity(cs->cpu_index, 1567 ARM_DEFAULT_CPUS_PER_CLUSTER); 1568 } 1569 1570 if (cpu->reset_hivecs) { 1571 cpu->reset_sctlr |= (1 << 13); 1572 } 1573 1574 if (cpu->cfgend) { 1575 if (arm_feature(&cpu->env, ARM_FEATURE_V7)) { 1576 cpu->reset_sctlr |= SCTLR_EE; 1577 } else { 1578 cpu->reset_sctlr |= SCTLR_B; 1579 } 1580 } 1581 1582 if (!cpu->has_el3) { 1583 /* If the has_el3 CPU property is disabled then we need to disable the 1584 * feature. 1585 */ 1586 unset_feature(env, ARM_FEATURE_EL3); 1587 1588 /* Disable the security extension feature bits in the processor feature 1589 * registers as well. These are id_pfr1[7:4] and id_aa64pfr0[15:12]. 1590 */ 1591 cpu->id_pfr1 &= ~0xf0; 1592 cpu->isar.id_aa64pfr0 &= ~0xf000; 1593 } 1594 1595 if (!cpu->has_el2) { 1596 unset_feature(env, ARM_FEATURE_EL2); 1597 } 1598 1599 if (!cpu->has_pmu) { 1600 unset_feature(env, ARM_FEATURE_PMU); 1601 } 1602 if (arm_feature(env, ARM_FEATURE_PMU)) { 1603 pmu_init(cpu); 1604 1605 if (!kvm_enabled()) { 1606 arm_register_pre_el_change_hook(cpu, &pmu_pre_el_change, 0); 1607 arm_register_el_change_hook(cpu, &pmu_post_el_change, 0); 1608 } 1609 1610 #ifndef CONFIG_USER_ONLY 1611 cpu->pmu_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, arm_pmu_timer_cb, 1612 cpu); 1613 #endif 1614 } else { 1615 cpu->id_aa64dfr0 &= ~0xf00; 1616 cpu->id_dfr0 &= ~(0xf << 24); 1617 cpu->pmceid0 = 0; 1618 cpu->pmceid1 = 0; 1619 } 1620 1621 if (!arm_feature(env, ARM_FEATURE_EL2)) { 1622 /* Disable the hypervisor feature bits in the processor feature 1623 * registers if we don't have EL2. These are id_pfr1[15:12] and 1624 * id_aa64pfr0_el1[11:8]. 1625 */ 1626 cpu->isar.id_aa64pfr0 &= ~0xf00; 1627 cpu->id_pfr1 &= ~0xf000; 1628 } 1629 1630 /* MPU can be configured out of a PMSA CPU either by setting has-mpu 1631 * to false or by setting pmsav7-dregion to 0. 1632 */ 1633 if (!cpu->has_mpu) { 1634 cpu->pmsav7_dregion = 0; 1635 } 1636 if (cpu->pmsav7_dregion == 0) { 1637 cpu->has_mpu = false; 1638 } 1639 1640 if (arm_feature(env, ARM_FEATURE_PMSA) && 1641 arm_feature(env, ARM_FEATURE_V7)) { 1642 uint32_t nr = cpu->pmsav7_dregion; 1643 1644 if (nr > 0xff) { 1645 error_setg(errp, "PMSAv7 MPU #regions invalid %" PRIu32, nr); 1646 return; 1647 } 1648 1649 if (nr) { 1650 if (arm_feature(env, ARM_FEATURE_V8)) { 1651 /* PMSAv8 */ 1652 env->pmsav8.rbar[M_REG_NS] = g_new0(uint32_t, nr); 1653 env->pmsav8.rlar[M_REG_NS] = g_new0(uint32_t, nr); 1654 if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { 1655 env->pmsav8.rbar[M_REG_S] = g_new0(uint32_t, nr); 1656 env->pmsav8.rlar[M_REG_S] = g_new0(uint32_t, nr); 1657 } 1658 } else { 1659 env->pmsav7.drbar = g_new0(uint32_t, nr); 1660 env->pmsav7.drsr = g_new0(uint32_t, nr); 1661 env->pmsav7.dracr = g_new0(uint32_t, nr); 1662 } 1663 } 1664 } 1665 1666 if (arm_feature(env, ARM_FEATURE_M_SECURITY)) { 1667 uint32_t nr = cpu->sau_sregion; 1668 1669 if (nr > 0xff) { 1670 error_setg(errp, "v8M SAU #regions invalid %" PRIu32, nr); 1671 return; 1672 } 1673 1674 if (nr) { 1675 env->sau.rbar = g_new0(uint32_t, nr); 1676 env->sau.rlar = g_new0(uint32_t, nr); 1677 } 1678 } 1679 1680 if (arm_feature(env, ARM_FEATURE_EL3)) { 1681 set_feature(env, ARM_FEATURE_VBAR); 1682 } 1683 1684 register_cp_regs_for_features(cpu); 1685 arm_cpu_register_gdb_regs_for_features(cpu); 1686 1687 init_cpreg_list(cpu); 1688 1689 #ifndef CONFIG_USER_ONLY 1690 MachineState *ms = MACHINE(qdev_get_machine()); 1691 unsigned int smp_cpus = ms->smp.cpus; 1692 1693 if (cpu->has_el3 || arm_feature(env, ARM_FEATURE_M_SECURITY)) { 1694 cs->num_ases = 2; 1695 1696 if (!cpu->secure_memory) { 1697 cpu->secure_memory = cs->memory; 1698 } 1699 cpu_address_space_init(cs, ARMASIdx_S, "cpu-secure-memory", 1700 cpu->secure_memory); 1701 } else { 1702 cs->num_ases = 1; 1703 } 1704 cpu_address_space_init(cs, ARMASIdx_NS, "cpu-memory", cs->memory); 1705 1706 /* No core_count specified, default to smp_cpus. */ 1707 if (cpu->core_count == -1) { 1708 cpu->core_count = smp_cpus; 1709 } 1710 #endif 1711 1712 qemu_init_vcpu(cs); 1713 cpu_reset(cs); 1714 1715 acc->parent_realize(dev, errp); 1716 } 1717 1718 static ObjectClass *arm_cpu_class_by_name(const char *cpu_model) 1719 { 1720 ObjectClass *oc; 1721 char *typename; 1722 char **cpuname; 1723 const char *cpunamestr; 1724 1725 cpuname = g_strsplit(cpu_model, ",", 1); 1726 cpunamestr = cpuname[0]; 1727 #ifdef CONFIG_USER_ONLY 1728 /* For backwards compatibility usermode emulation allows "-cpu any", 1729 * which has the same semantics as "-cpu max". 1730 */ 1731 if (!strcmp(cpunamestr, "any")) { 1732 cpunamestr = "max"; 1733 } 1734 #endif 1735 typename = g_strdup_printf(ARM_CPU_TYPE_NAME("%s"), cpunamestr); 1736 oc = object_class_by_name(typename); 1737 g_strfreev(cpuname); 1738 g_free(typename); 1739 if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) || 1740 object_class_is_abstract(oc)) { 1741 return NULL; 1742 } 1743 return oc; 1744 } 1745 1746 /* CPU models. These are not needed for the AArch64 linux-user build. */ 1747 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) 1748 1749 static void arm926_initfn(Object *obj) 1750 { 1751 ARMCPU *cpu = ARM_CPU(obj); 1752 1753 cpu->dtb_compatible = "arm,arm926"; 1754 set_feature(&cpu->env, ARM_FEATURE_V5); 1755 set_feature(&cpu->env, ARM_FEATURE_VFP); 1756 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1757 set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN); 1758 cpu->midr = 0x41069265; 1759 cpu->reset_fpsid = 0x41011090; 1760 cpu->ctr = 0x1dd20d2; 1761 cpu->reset_sctlr = 0x00090078; 1762 1763 /* 1764 * ARMv5 does not have the ID_ISAR registers, but we can still 1765 * set the field to indicate Jazelle support within QEMU. 1766 */ 1767 cpu->isar.id_isar1 = FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1); 1768 /* 1769 * Similarly, we need to set MVFR0 fields to enable double precision 1770 * and short vector support even though ARMv5 doesn't have this register. 1771 */ 1772 cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1); 1773 cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPDP, 1); 1774 } 1775 1776 static void arm946_initfn(Object *obj) 1777 { 1778 ARMCPU *cpu = ARM_CPU(obj); 1779 1780 cpu->dtb_compatible = "arm,arm946"; 1781 set_feature(&cpu->env, ARM_FEATURE_V5); 1782 set_feature(&cpu->env, ARM_FEATURE_PMSA); 1783 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1784 cpu->midr = 0x41059461; 1785 cpu->ctr = 0x0f004006; 1786 cpu->reset_sctlr = 0x00000078; 1787 } 1788 1789 static void arm1026_initfn(Object *obj) 1790 { 1791 ARMCPU *cpu = ARM_CPU(obj); 1792 1793 cpu->dtb_compatible = "arm,arm1026"; 1794 set_feature(&cpu->env, ARM_FEATURE_V5); 1795 set_feature(&cpu->env, ARM_FEATURE_VFP); 1796 set_feature(&cpu->env, ARM_FEATURE_AUXCR); 1797 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1798 set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN); 1799 cpu->midr = 0x4106a262; 1800 cpu->reset_fpsid = 0x410110a0; 1801 cpu->ctr = 0x1dd20d2; 1802 cpu->reset_sctlr = 0x00090078; 1803 cpu->reset_auxcr = 1; 1804 1805 /* 1806 * ARMv5 does not have the ID_ISAR registers, but we can still 1807 * set the field to indicate Jazelle support within QEMU. 1808 */ 1809 cpu->isar.id_isar1 = FIELD_DP32(cpu->isar.id_isar1, ID_ISAR1, JAZELLE, 1); 1810 /* 1811 * Similarly, we need to set MVFR0 fields to enable double precision 1812 * and short vector support even though ARMv5 doesn't have this register. 1813 */ 1814 cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1); 1815 cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPDP, 1); 1816 1817 { 1818 /* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */ 1819 ARMCPRegInfo ifar = { 1820 .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1, 1821 .access = PL1_RW, 1822 .fieldoffset = offsetof(CPUARMState, cp15.ifar_ns), 1823 .resetvalue = 0 1824 }; 1825 define_one_arm_cp_reg(cpu, &ifar); 1826 } 1827 } 1828 1829 static void arm1136_r2_initfn(Object *obj) 1830 { 1831 ARMCPU *cpu = ARM_CPU(obj); 1832 /* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an 1833 * older core than plain "arm1136". In particular this does not 1834 * have the v6K features. 1835 * These ID register values are correct for 1136 but may be wrong 1836 * for 1136_r2 (in particular r0p2 does not actually implement most 1837 * of the ID registers). 1838 */ 1839 1840 cpu->dtb_compatible = "arm,arm1136"; 1841 set_feature(&cpu->env, ARM_FEATURE_V6); 1842 set_feature(&cpu->env, ARM_FEATURE_VFP); 1843 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1844 set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG); 1845 set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS); 1846 cpu->midr = 0x4107b362; 1847 cpu->reset_fpsid = 0x410120b4; 1848 cpu->isar.mvfr0 = 0x11111111; 1849 cpu->isar.mvfr1 = 0x00000000; 1850 cpu->ctr = 0x1dd20d2; 1851 cpu->reset_sctlr = 0x00050078; 1852 cpu->id_pfr0 = 0x111; 1853 cpu->id_pfr1 = 0x1; 1854 cpu->id_dfr0 = 0x2; 1855 cpu->id_afr0 = 0x3; 1856 cpu->id_mmfr0 = 0x01130003; 1857 cpu->id_mmfr1 = 0x10030302; 1858 cpu->id_mmfr2 = 0x01222110; 1859 cpu->isar.id_isar0 = 0x00140011; 1860 cpu->isar.id_isar1 = 0x12002111; 1861 cpu->isar.id_isar2 = 0x11231111; 1862 cpu->isar.id_isar3 = 0x01102131; 1863 cpu->isar.id_isar4 = 0x141; 1864 cpu->reset_auxcr = 7; 1865 } 1866 1867 static void arm1136_initfn(Object *obj) 1868 { 1869 ARMCPU *cpu = ARM_CPU(obj); 1870 1871 cpu->dtb_compatible = "arm,arm1136"; 1872 set_feature(&cpu->env, ARM_FEATURE_V6K); 1873 set_feature(&cpu->env, ARM_FEATURE_V6); 1874 set_feature(&cpu->env, ARM_FEATURE_VFP); 1875 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1876 set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG); 1877 set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS); 1878 cpu->midr = 0x4117b363; 1879 cpu->reset_fpsid = 0x410120b4; 1880 cpu->isar.mvfr0 = 0x11111111; 1881 cpu->isar.mvfr1 = 0x00000000; 1882 cpu->ctr = 0x1dd20d2; 1883 cpu->reset_sctlr = 0x00050078; 1884 cpu->id_pfr0 = 0x111; 1885 cpu->id_pfr1 = 0x1; 1886 cpu->id_dfr0 = 0x2; 1887 cpu->id_afr0 = 0x3; 1888 cpu->id_mmfr0 = 0x01130003; 1889 cpu->id_mmfr1 = 0x10030302; 1890 cpu->id_mmfr2 = 0x01222110; 1891 cpu->isar.id_isar0 = 0x00140011; 1892 cpu->isar.id_isar1 = 0x12002111; 1893 cpu->isar.id_isar2 = 0x11231111; 1894 cpu->isar.id_isar3 = 0x01102131; 1895 cpu->isar.id_isar4 = 0x141; 1896 cpu->reset_auxcr = 7; 1897 } 1898 1899 static void arm1176_initfn(Object *obj) 1900 { 1901 ARMCPU *cpu = ARM_CPU(obj); 1902 1903 cpu->dtb_compatible = "arm,arm1176"; 1904 set_feature(&cpu->env, ARM_FEATURE_V6K); 1905 set_feature(&cpu->env, ARM_FEATURE_VFP); 1906 set_feature(&cpu->env, ARM_FEATURE_VAPA); 1907 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1908 set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG); 1909 set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS); 1910 set_feature(&cpu->env, ARM_FEATURE_EL3); 1911 cpu->midr = 0x410fb767; 1912 cpu->reset_fpsid = 0x410120b5; 1913 cpu->isar.mvfr0 = 0x11111111; 1914 cpu->isar.mvfr1 = 0x00000000; 1915 cpu->ctr = 0x1dd20d2; 1916 cpu->reset_sctlr = 0x00050078; 1917 cpu->id_pfr0 = 0x111; 1918 cpu->id_pfr1 = 0x11; 1919 cpu->id_dfr0 = 0x33; 1920 cpu->id_afr0 = 0; 1921 cpu->id_mmfr0 = 0x01130003; 1922 cpu->id_mmfr1 = 0x10030302; 1923 cpu->id_mmfr2 = 0x01222100; 1924 cpu->isar.id_isar0 = 0x0140011; 1925 cpu->isar.id_isar1 = 0x12002111; 1926 cpu->isar.id_isar2 = 0x11231121; 1927 cpu->isar.id_isar3 = 0x01102131; 1928 cpu->isar.id_isar4 = 0x01141; 1929 cpu->reset_auxcr = 7; 1930 } 1931 1932 static void arm11mpcore_initfn(Object *obj) 1933 { 1934 ARMCPU *cpu = ARM_CPU(obj); 1935 1936 cpu->dtb_compatible = "arm,arm11mpcore"; 1937 set_feature(&cpu->env, ARM_FEATURE_V6K); 1938 set_feature(&cpu->env, ARM_FEATURE_VFP); 1939 set_feature(&cpu->env, ARM_FEATURE_VAPA); 1940 set_feature(&cpu->env, ARM_FEATURE_MPIDR); 1941 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 1942 cpu->midr = 0x410fb022; 1943 cpu->reset_fpsid = 0x410120b4; 1944 cpu->isar.mvfr0 = 0x11111111; 1945 cpu->isar.mvfr1 = 0x00000000; 1946 cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */ 1947 cpu->id_pfr0 = 0x111; 1948 cpu->id_pfr1 = 0x1; 1949 cpu->id_dfr0 = 0; 1950 cpu->id_afr0 = 0x2; 1951 cpu->id_mmfr0 = 0x01100103; 1952 cpu->id_mmfr1 = 0x10020302; 1953 cpu->id_mmfr2 = 0x01222000; 1954 cpu->isar.id_isar0 = 0x00100011; 1955 cpu->isar.id_isar1 = 0x12002111; 1956 cpu->isar.id_isar2 = 0x11221011; 1957 cpu->isar.id_isar3 = 0x01102131; 1958 cpu->isar.id_isar4 = 0x141; 1959 cpu->reset_auxcr = 1; 1960 } 1961 1962 static void cortex_m0_initfn(Object *obj) 1963 { 1964 ARMCPU *cpu = ARM_CPU(obj); 1965 set_feature(&cpu->env, ARM_FEATURE_V6); 1966 set_feature(&cpu->env, ARM_FEATURE_M); 1967 1968 cpu->midr = 0x410cc200; 1969 } 1970 1971 static void cortex_m3_initfn(Object *obj) 1972 { 1973 ARMCPU *cpu = ARM_CPU(obj); 1974 set_feature(&cpu->env, ARM_FEATURE_V7); 1975 set_feature(&cpu->env, ARM_FEATURE_M); 1976 set_feature(&cpu->env, ARM_FEATURE_M_MAIN); 1977 cpu->midr = 0x410fc231; 1978 cpu->pmsav7_dregion = 8; 1979 cpu->id_pfr0 = 0x00000030; 1980 cpu->id_pfr1 = 0x00000200; 1981 cpu->id_dfr0 = 0x00100000; 1982 cpu->id_afr0 = 0x00000000; 1983 cpu->id_mmfr0 = 0x00000030; 1984 cpu->id_mmfr1 = 0x00000000; 1985 cpu->id_mmfr2 = 0x00000000; 1986 cpu->id_mmfr3 = 0x00000000; 1987 cpu->isar.id_isar0 = 0x01141110; 1988 cpu->isar.id_isar1 = 0x02111000; 1989 cpu->isar.id_isar2 = 0x21112231; 1990 cpu->isar.id_isar3 = 0x01111110; 1991 cpu->isar.id_isar4 = 0x01310102; 1992 cpu->isar.id_isar5 = 0x00000000; 1993 cpu->isar.id_isar6 = 0x00000000; 1994 } 1995 1996 static void cortex_m4_initfn(Object *obj) 1997 { 1998 ARMCPU *cpu = ARM_CPU(obj); 1999 2000 set_feature(&cpu->env, ARM_FEATURE_V7); 2001 set_feature(&cpu->env, ARM_FEATURE_M); 2002 set_feature(&cpu->env, ARM_FEATURE_M_MAIN); 2003 set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); 2004 set_feature(&cpu->env, ARM_FEATURE_VFP4); 2005 cpu->midr = 0x410fc240; /* r0p0 */ 2006 cpu->pmsav7_dregion = 8; 2007 cpu->isar.mvfr0 = 0x10110021; 2008 cpu->isar.mvfr1 = 0x11000011; 2009 cpu->isar.mvfr2 = 0x00000000; 2010 cpu->id_pfr0 = 0x00000030; 2011 cpu->id_pfr1 = 0x00000200; 2012 cpu->id_dfr0 = 0x00100000; 2013 cpu->id_afr0 = 0x00000000; 2014 cpu->id_mmfr0 = 0x00000030; 2015 cpu->id_mmfr1 = 0x00000000; 2016 cpu->id_mmfr2 = 0x00000000; 2017 cpu->id_mmfr3 = 0x00000000; 2018 cpu->isar.id_isar0 = 0x01141110; 2019 cpu->isar.id_isar1 = 0x02111000; 2020 cpu->isar.id_isar2 = 0x21112231; 2021 cpu->isar.id_isar3 = 0x01111110; 2022 cpu->isar.id_isar4 = 0x01310102; 2023 cpu->isar.id_isar5 = 0x00000000; 2024 cpu->isar.id_isar6 = 0x00000000; 2025 } 2026 2027 static void cortex_m7_initfn(Object *obj) 2028 { 2029 ARMCPU *cpu = ARM_CPU(obj); 2030 2031 set_feature(&cpu->env, ARM_FEATURE_V7); 2032 set_feature(&cpu->env, ARM_FEATURE_M); 2033 set_feature(&cpu->env, ARM_FEATURE_M_MAIN); 2034 set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); 2035 set_feature(&cpu->env, ARM_FEATURE_VFP4); 2036 cpu->midr = 0x411fc272; /* r1p2 */ 2037 cpu->pmsav7_dregion = 8; 2038 cpu->isar.mvfr0 = 0x10110221; 2039 cpu->isar.mvfr1 = 0x12000011; 2040 cpu->isar.mvfr2 = 0x00000040; 2041 cpu->id_pfr0 = 0x00000030; 2042 cpu->id_pfr1 = 0x00000200; 2043 cpu->id_dfr0 = 0x00100000; 2044 cpu->id_afr0 = 0x00000000; 2045 cpu->id_mmfr0 = 0x00100030; 2046 cpu->id_mmfr1 = 0x00000000; 2047 cpu->id_mmfr2 = 0x01000000; 2048 cpu->id_mmfr3 = 0x00000000; 2049 cpu->isar.id_isar0 = 0x01101110; 2050 cpu->isar.id_isar1 = 0x02112000; 2051 cpu->isar.id_isar2 = 0x20232231; 2052 cpu->isar.id_isar3 = 0x01111131; 2053 cpu->isar.id_isar4 = 0x01310132; 2054 cpu->isar.id_isar5 = 0x00000000; 2055 cpu->isar.id_isar6 = 0x00000000; 2056 } 2057 2058 static void cortex_m33_initfn(Object *obj) 2059 { 2060 ARMCPU *cpu = ARM_CPU(obj); 2061 2062 set_feature(&cpu->env, ARM_FEATURE_V8); 2063 set_feature(&cpu->env, ARM_FEATURE_M); 2064 set_feature(&cpu->env, ARM_FEATURE_M_MAIN); 2065 set_feature(&cpu->env, ARM_FEATURE_M_SECURITY); 2066 set_feature(&cpu->env, ARM_FEATURE_THUMB_DSP); 2067 set_feature(&cpu->env, ARM_FEATURE_VFP4); 2068 cpu->midr = 0x410fd213; /* r0p3 */ 2069 cpu->pmsav7_dregion = 16; 2070 cpu->sau_sregion = 8; 2071 cpu->isar.mvfr0 = 0x10110021; 2072 cpu->isar.mvfr1 = 0x11000011; 2073 cpu->isar.mvfr2 = 0x00000040; 2074 cpu->id_pfr0 = 0x00000030; 2075 cpu->id_pfr1 = 0x00000210; 2076 cpu->id_dfr0 = 0x00200000; 2077 cpu->id_afr0 = 0x00000000; 2078 cpu->id_mmfr0 = 0x00101F40; 2079 cpu->id_mmfr1 = 0x00000000; 2080 cpu->id_mmfr2 = 0x01000000; 2081 cpu->id_mmfr3 = 0x00000000; 2082 cpu->isar.id_isar0 = 0x01101110; 2083 cpu->isar.id_isar1 = 0x02212000; 2084 cpu->isar.id_isar2 = 0x20232232; 2085 cpu->isar.id_isar3 = 0x01111131; 2086 cpu->isar.id_isar4 = 0x01310132; 2087 cpu->isar.id_isar5 = 0x00000000; 2088 cpu->isar.id_isar6 = 0x00000000; 2089 cpu->clidr = 0x00000000; 2090 cpu->ctr = 0x8000c000; 2091 } 2092 2093 static void arm_v7m_class_init(ObjectClass *oc, void *data) 2094 { 2095 ARMCPUClass *acc = ARM_CPU_CLASS(oc); 2096 CPUClass *cc = CPU_CLASS(oc); 2097 2098 acc->info = data; 2099 #ifndef CONFIG_USER_ONLY 2100 cc->do_interrupt = arm_v7m_cpu_do_interrupt; 2101 #endif 2102 2103 cc->cpu_exec_interrupt = arm_v7m_cpu_exec_interrupt; 2104 } 2105 2106 static const ARMCPRegInfo cortexr5_cp_reginfo[] = { 2107 /* Dummy the TCM region regs for the moment */ 2108 { .name = "ATCM", .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 0, 2109 .access = PL1_RW, .type = ARM_CP_CONST }, 2110 { .name = "BTCM", .cp = 15, .opc1 = 0, .crn = 9, .crm = 1, .opc2 = 1, 2111 .access = PL1_RW, .type = ARM_CP_CONST }, 2112 { .name = "DCACHE_INVAL", .cp = 15, .opc1 = 0, .crn = 15, .crm = 5, 2113 .opc2 = 0, .access = PL1_W, .type = ARM_CP_NOP }, 2114 REGINFO_SENTINEL 2115 }; 2116 2117 static void cortex_r5_initfn(Object *obj) 2118 { 2119 ARMCPU *cpu = ARM_CPU(obj); 2120 2121 set_feature(&cpu->env, ARM_FEATURE_V7); 2122 set_feature(&cpu->env, ARM_FEATURE_V7MP); 2123 set_feature(&cpu->env, ARM_FEATURE_PMSA); 2124 set_feature(&cpu->env, ARM_FEATURE_PMU); 2125 cpu->midr = 0x411fc153; /* r1p3 */ 2126 cpu->id_pfr0 = 0x0131; 2127 cpu->id_pfr1 = 0x001; 2128 cpu->id_dfr0 = 0x010400; 2129 cpu->id_afr0 = 0x0; 2130 cpu->id_mmfr0 = 0x0210030; 2131 cpu->id_mmfr1 = 0x00000000; 2132 cpu->id_mmfr2 = 0x01200000; 2133 cpu->id_mmfr3 = 0x0211; 2134 cpu->isar.id_isar0 = 0x02101111; 2135 cpu->isar.id_isar1 = 0x13112111; 2136 cpu->isar.id_isar2 = 0x21232141; 2137 cpu->isar.id_isar3 = 0x01112131; 2138 cpu->isar.id_isar4 = 0x0010142; 2139 cpu->isar.id_isar5 = 0x0; 2140 cpu->isar.id_isar6 = 0x0; 2141 cpu->mp_is_up = true; 2142 cpu->pmsav7_dregion = 16; 2143 define_arm_cp_regs(cpu, cortexr5_cp_reginfo); 2144 } 2145 2146 static void cortex_r5f_initfn(Object *obj) 2147 { 2148 ARMCPU *cpu = ARM_CPU(obj); 2149 2150 cortex_r5_initfn(obj); 2151 set_feature(&cpu->env, ARM_FEATURE_VFP3); 2152 cpu->isar.mvfr0 = 0x10110221; 2153 cpu->isar.mvfr1 = 0x00000011; 2154 } 2155 2156 static const ARMCPRegInfo cortexa8_cp_reginfo[] = { 2157 { .name = "L2LOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 0, 2158 .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, 2159 { .name = "L2AUXCR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2, 2160 .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, 2161 REGINFO_SENTINEL 2162 }; 2163 2164 static void cortex_a8_initfn(Object *obj) 2165 { 2166 ARMCPU *cpu = ARM_CPU(obj); 2167 2168 cpu->dtb_compatible = "arm,cortex-a8"; 2169 set_feature(&cpu->env, ARM_FEATURE_V7); 2170 set_feature(&cpu->env, ARM_FEATURE_VFP3); 2171 set_feature(&cpu->env, ARM_FEATURE_NEON); 2172 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); 2173 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 2174 set_feature(&cpu->env, ARM_FEATURE_EL3); 2175 cpu->midr = 0x410fc080; 2176 cpu->reset_fpsid = 0x410330c0; 2177 cpu->isar.mvfr0 = 0x11110222; 2178 cpu->isar.mvfr1 = 0x00011111; 2179 cpu->ctr = 0x82048004; 2180 cpu->reset_sctlr = 0x00c50078; 2181 cpu->id_pfr0 = 0x1031; 2182 cpu->id_pfr1 = 0x11; 2183 cpu->id_dfr0 = 0x400; 2184 cpu->id_afr0 = 0; 2185 cpu->id_mmfr0 = 0x31100003; 2186 cpu->id_mmfr1 = 0x20000000; 2187 cpu->id_mmfr2 = 0x01202000; 2188 cpu->id_mmfr3 = 0x11; 2189 cpu->isar.id_isar0 = 0x00101111; 2190 cpu->isar.id_isar1 = 0x12112111; 2191 cpu->isar.id_isar2 = 0x21232031; 2192 cpu->isar.id_isar3 = 0x11112131; 2193 cpu->isar.id_isar4 = 0x00111142; 2194 cpu->dbgdidr = 0x15141000; 2195 cpu->clidr = (1 << 27) | (2 << 24) | 3; 2196 cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */ 2197 cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */ 2198 cpu->ccsidr[2] = 0xf0000000; /* No L2 icache. */ 2199 cpu->reset_auxcr = 2; 2200 define_arm_cp_regs(cpu, cortexa8_cp_reginfo); 2201 } 2202 2203 static const ARMCPRegInfo cortexa9_cp_reginfo[] = { 2204 /* power_control should be set to maximum latency. Again, 2205 * default to 0 and set by private hook 2206 */ 2207 { .name = "A9_PWRCTL", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0, 2208 .access = PL1_RW, .resetvalue = 0, 2209 .fieldoffset = offsetof(CPUARMState, cp15.c15_power_control) }, 2210 { .name = "A9_DIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 1, 2211 .access = PL1_RW, .resetvalue = 0, 2212 .fieldoffset = offsetof(CPUARMState, cp15.c15_diagnostic) }, 2213 { .name = "A9_PWRDIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 2, 2214 .access = PL1_RW, .resetvalue = 0, 2215 .fieldoffset = offsetof(CPUARMState, cp15.c15_power_diagnostic) }, 2216 { .name = "NEONBUSY", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0, 2217 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST }, 2218 /* TLB lockdown control */ 2219 { .name = "TLB_LOCKR", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 2, 2220 .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP }, 2221 { .name = "TLB_LOCKW", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 4, 2222 .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP }, 2223 { .name = "TLB_VA", .cp = 15, .crn = 15, .crm = 5, .opc1 = 5, .opc2 = 2, 2224 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST }, 2225 { .name = "TLB_PA", .cp = 15, .crn = 15, .crm = 6, .opc1 = 5, .opc2 = 2, 2226 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST }, 2227 { .name = "TLB_ATTR", .cp = 15, .crn = 15, .crm = 7, .opc1 = 5, .opc2 = 2, 2228 .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST }, 2229 REGINFO_SENTINEL 2230 }; 2231 2232 static void cortex_a9_initfn(Object *obj) 2233 { 2234 ARMCPU *cpu = ARM_CPU(obj); 2235 2236 cpu->dtb_compatible = "arm,cortex-a9"; 2237 set_feature(&cpu->env, ARM_FEATURE_V7); 2238 set_feature(&cpu->env, ARM_FEATURE_VFP3); 2239 set_feature(&cpu->env, ARM_FEATURE_NEON); 2240 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); 2241 set_feature(&cpu->env, ARM_FEATURE_EL3); 2242 /* Note that A9 supports the MP extensions even for 2243 * A9UP and single-core A9MP (which are both different 2244 * and valid configurations; we don't model A9UP). 2245 */ 2246 set_feature(&cpu->env, ARM_FEATURE_V7MP); 2247 set_feature(&cpu->env, ARM_FEATURE_CBAR); 2248 cpu->midr = 0x410fc090; 2249 cpu->reset_fpsid = 0x41033090; 2250 cpu->isar.mvfr0 = 0x11110222; 2251 cpu->isar.mvfr1 = 0x01111111; 2252 cpu->ctr = 0x80038003; 2253 cpu->reset_sctlr = 0x00c50078; 2254 cpu->id_pfr0 = 0x1031; 2255 cpu->id_pfr1 = 0x11; 2256 cpu->id_dfr0 = 0x000; 2257 cpu->id_afr0 = 0; 2258 cpu->id_mmfr0 = 0x00100103; 2259 cpu->id_mmfr1 = 0x20000000; 2260 cpu->id_mmfr2 = 0x01230000; 2261 cpu->id_mmfr3 = 0x00002111; 2262 cpu->isar.id_isar0 = 0x00101111; 2263 cpu->isar.id_isar1 = 0x13112111; 2264 cpu->isar.id_isar2 = 0x21232041; 2265 cpu->isar.id_isar3 = 0x11112131; 2266 cpu->isar.id_isar4 = 0x00111142; 2267 cpu->dbgdidr = 0x35141000; 2268 cpu->clidr = (1 << 27) | (1 << 24) | 3; 2269 cpu->ccsidr[0] = 0xe00fe019; /* 16k L1 dcache. */ 2270 cpu->ccsidr[1] = 0x200fe019; /* 16k L1 icache. */ 2271 define_arm_cp_regs(cpu, cortexa9_cp_reginfo); 2272 } 2273 2274 #ifndef CONFIG_USER_ONLY 2275 static uint64_t a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri) 2276 { 2277 MachineState *ms = MACHINE(qdev_get_machine()); 2278 2279 /* Linux wants the number of processors from here. 2280 * Might as well set the interrupt-controller bit too. 2281 */ 2282 return ((ms->smp.cpus - 1) << 24) | (1 << 23); 2283 } 2284 #endif 2285 2286 static const ARMCPRegInfo cortexa15_cp_reginfo[] = { 2287 #ifndef CONFIG_USER_ONLY 2288 { .name = "L2CTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2, 2289 .access = PL1_RW, .resetvalue = 0, .readfn = a15_l2ctlr_read, 2290 .writefn = arm_cp_write_ignore, }, 2291 #endif 2292 { .name = "L2ECTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 3, 2293 .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 }, 2294 REGINFO_SENTINEL 2295 }; 2296 2297 static void cortex_a7_initfn(Object *obj) 2298 { 2299 ARMCPU *cpu = ARM_CPU(obj); 2300 2301 cpu->dtb_compatible = "arm,cortex-a7"; 2302 set_feature(&cpu->env, ARM_FEATURE_V7VE); 2303 set_feature(&cpu->env, ARM_FEATURE_VFP4); 2304 set_feature(&cpu->env, ARM_FEATURE_NEON); 2305 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); 2306 set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER); 2307 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 2308 set_feature(&cpu->env, ARM_FEATURE_CBAR_RO); 2309 set_feature(&cpu->env, ARM_FEATURE_EL2); 2310 set_feature(&cpu->env, ARM_FEATURE_EL3); 2311 set_feature(&cpu->env, ARM_FEATURE_PMU); 2312 cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A7; 2313 cpu->midr = 0x410fc075; 2314 cpu->reset_fpsid = 0x41023075; 2315 cpu->isar.mvfr0 = 0x10110222; 2316 cpu->isar.mvfr1 = 0x11111111; 2317 cpu->ctr = 0x84448003; 2318 cpu->reset_sctlr = 0x00c50078; 2319 cpu->id_pfr0 = 0x00001131; 2320 cpu->id_pfr1 = 0x00011011; 2321 cpu->id_dfr0 = 0x02010555; 2322 cpu->id_afr0 = 0x00000000; 2323 cpu->id_mmfr0 = 0x10101105; 2324 cpu->id_mmfr1 = 0x40000000; 2325 cpu->id_mmfr2 = 0x01240000; 2326 cpu->id_mmfr3 = 0x02102211; 2327 /* a7_mpcore_r0p5_trm, page 4-4 gives 0x01101110; but 2328 * table 4-41 gives 0x02101110, which includes the arm div insns. 2329 */ 2330 cpu->isar.id_isar0 = 0x02101110; 2331 cpu->isar.id_isar1 = 0x13112111; 2332 cpu->isar.id_isar2 = 0x21232041; 2333 cpu->isar.id_isar3 = 0x11112131; 2334 cpu->isar.id_isar4 = 0x10011142; 2335 cpu->dbgdidr = 0x3515f005; 2336 cpu->clidr = 0x0a200023; 2337 cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */ 2338 cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */ 2339 cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */ 2340 define_arm_cp_regs(cpu, cortexa15_cp_reginfo); /* Same as A15 */ 2341 } 2342 2343 static void cortex_a15_initfn(Object *obj) 2344 { 2345 ARMCPU *cpu = ARM_CPU(obj); 2346 2347 cpu->dtb_compatible = "arm,cortex-a15"; 2348 set_feature(&cpu->env, ARM_FEATURE_V7VE); 2349 set_feature(&cpu->env, ARM_FEATURE_VFP4); 2350 set_feature(&cpu->env, ARM_FEATURE_NEON); 2351 set_feature(&cpu->env, ARM_FEATURE_THUMB2EE); 2352 set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER); 2353 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 2354 set_feature(&cpu->env, ARM_FEATURE_CBAR_RO); 2355 set_feature(&cpu->env, ARM_FEATURE_EL2); 2356 set_feature(&cpu->env, ARM_FEATURE_EL3); 2357 set_feature(&cpu->env, ARM_FEATURE_PMU); 2358 cpu->kvm_target = QEMU_KVM_ARM_TARGET_CORTEX_A15; 2359 cpu->midr = 0x412fc0f1; 2360 cpu->reset_fpsid = 0x410430f0; 2361 cpu->isar.mvfr0 = 0x10110222; 2362 cpu->isar.mvfr1 = 0x11111111; 2363 cpu->ctr = 0x8444c004; 2364 cpu->reset_sctlr = 0x00c50078; 2365 cpu->id_pfr0 = 0x00001131; 2366 cpu->id_pfr1 = 0x00011011; 2367 cpu->id_dfr0 = 0x02010555; 2368 cpu->id_afr0 = 0x00000000; 2369 cpu->id_mmfr0 = 0x10201105; 2370 cpu->id_mmfr1 = 0x20000000; 2371 cpu->id_mmfr2 = 0x01240000; 2372 cpu->id_mmfr3 = 0x02102211; 2373 cpu->isar.id_isar0 = 0x02101110; 2374 cpu->isar.id_isar1 = 0x13112111; 2375 cpu->isar.id_isar2 = 0x21232041; 2376 cpu->isar.id_isar3 = 0x11112131; 2377 cpu->isar.id_isar4 = 0x10011142; 2378 cpu->dbgdidr = 0x3515f021; 2379 cpu->clidr = 0x0a200023; 2380 cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */ 2381 cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */ 2382 cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */ 2383 define_arm_cp_regs(cpu, cortexa15_cp_reginfo); 2384 } 2385 2386 static void ti925t_initfn(Object *obj) 2387 { 2388 ARMCPU *cpu = ARM_CPU(obj); 2389 set_feature(&cpu->env, ARM_FEATURE_V4T); 2390 set_feature(&cpu->env, ARM_FEATURE_OMAPCP); 2391 cpu->midr = ARM_CPUID_TI925T; 2392 cpu->ctr = 0x5109149; 2393 cpu->reset_sctlr = 0x00000070; 2394 } 2395 2396 static void sa1100_initfn(Object *obj) 2397 { 2398 ARMCPU *cpu = ARM_CPU(obj); 2399 2400 cpu->dtb_compatible = "intel,sa1100"; 2401 set_feature(&cpu->env, ARM_FEATURE_STRONGARM); 2402 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 2403 cpu->midr = 0x4401A11B; 2404 cpu->reset_sctlr = 0x00000070; 2405 } 2406 2407 static void sa1110_initfn(Object *obj) 2408 { 2409 ARMCPU *cpu = ARM_CPU(obj); 2410 set_feature(&cpu->env, ARM_FEATURE_STRONGARM); 2411 set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS); 2412 cpu->midr = 0x6901B119; 2413 cpu->reset_sctlr = 0x00000070; 2414 } 2415 2416 static void pxa250_initfn(Object *obj) 2417 { 2418 ARMCPU *cpu = ARM_CPU(obj); 2419 2420 cpu->dtb_compatible = "marvell,xscale"; 2421 set_feature(&cpu->env, ARM_FEATURE_V5); 2422 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2423 cpu->midr = 0x69052100; 2424 cpu->ctr = 0xd172172; 2425 cpu->reset_sctlr = 0x00000078; 2426 } 2427 2428 static void pxa255_initfn(Object *obj) 2429 { 2430 ARMCPU *cpu = ARM_CPU(obj); 2431 2432 cpu->dtb_compatible = "marvell,xscale"; 2433 set_feature(&cpu->env, ARM_FEATURE_V5); 2434 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2435 cpu->midr = 0x69052d00; 2436 cpu->ctr = 0xd172172; 2437 cpu->reset_sctlr = 0x00000078; 2438 } 2439 2440 static void pxa260_initfn(Object *obj) 2441 { 2442 ARMCPU *cpu = ARM_CPU(obj); 2443 2444 cpu->dtb_compatible = "marvell,xscale"; 2445 set_feature(&cpu->env, ARM_FEATURE_V5); 2446 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2447 cpu->midr = 0x69052903; 2448 cpu->ctr = 0xd172172; 2449 cpu->reset_sctlr = 0x00000078; 2450 } 2451 2452 static void pxa261_initfn(Object *obj) 2453 { 2454 ARMCPU *cpu = ARM_CPU(obj); 2455 2456 cpu->dtb_compatible = "marvell,xscale"; 2457 set_feature(&cpu->env, ARM_FEATURE_V5); 2458 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2459 cpu->midr = 0x69052d05; 2460 cpu->ctr = 0xd172172; 2461 cpu->reset_sctlr = 0x00000078; 2462 } 2463 2464 static void pxa262_initfn(Object *obj) 2465 { 2466 ARMCPU *cpu = ARM_CPU(obj); 2467 2468 cpu->dtb_compatible = "marvell,xscale"; 2469 set_feature(&cpu->env, ARM_FEATURE_V5); 2470 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2471 cpu->midr = 0x69052d06; 2472 cpu->ctr = 0xd172172; 2473 cpu->reset_sctlr = 0x00000078; 2474 } 2475 2476 static void pxa270a0_initfn(Object *obj) 2477 { 2478 ARMCPU *cpu = ARM_CPU(obj); 2479 2480 cpu->dtb_compatible = "marvell,xscale"; 2481 set_feature(&cpu->env, ARM_FEATURE_V5); 2482 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2483 set_feature(&cpu->env, ARM_FEATURE_IWMMXT); 2484 cpu->midr = 0x69054110; 2485 cpu->ctr = 0xd172172; 2486 cpu->reset_sctlr = 0x00000078; 2487 } 2488 2489 static void pxa270a1_initfn(Object *obj) 2490 { 2491 ARMCPU *cpu = ARM_CPU(obj); 2492 2493 cpu->dtb_compatible = "marvell,xscale"; 2494 set_feature(&cpu->env, ARM_FEATURE_V5); 2495 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2496 set_feature(&cpu->env, ARM_FEATURE_IWMMXT); 2497 cpu->midr = 0x69054111; 2498 cpu->ctr = 0xd172172; 2499 cpu->reset_sctlr = 0x00000078; 2500 } 2501 2502 static void pxa270b0_initfn(Object *obj) 2503 { 2504 ARMCPU *cpu = ARM_CPU(obj); 2505 2506 cpu->dtb_compatible = "marvell,xscale"; 2507 set_feature(&cpu->env, ARM_FEATURE_V5); 2508 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2509 set_feature(&cpu->env, ARM_FEATURE_IWMMXT); 2510 cpu->midr = 0x69054112; 2511 cpu->ctr = 0xd172172; 2512 cpu->reset_sctlr = 0x00000078; 2513 } 2514 2515 static void pxa270b1_initfn(Object *obj) 2516 { 2517 ARMCPU *cpu = ARM_CPU(obj); 2518 2519 cpu->dtb_compatible = "marvell,xscale"; 2520 set_feature(&cpu->env, ARM_FEATURE_V5); 2521 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2522 set_feature(&cpu->env, ARM_FEATURE_IWMMXT); 2523 cpu->midr = 0x69054113; 2524 cpu->ctr = 0xd172172; 2525 cpu->reset_sctlr = 0x00000078; 2526 } 2527 2528 static void pxa270c0_initfn(Object *obj) 2529 { 2530 ARMCPU *cpu = ARM_CPU(obj); 2531 2532 cpu->dtb_compatible = "marvell,xscale"; 2533 set_feature(&cpu->env, ARM_FEATURE_V5); 2534 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2535 set_feature(&cpu->env, ARM_FEATURE_IWMMXT); 2536 cpu->midr = 0x69054114; 2537 cpu->ctr = 0xd172172; 2538 cpu->reset_sctlr = 0x00000078; 2539 } 2540 2541 static void pxa270c5_initfn(Object *obj) 2542 { 2543 ARMCPU *cpu = ARM_CPU(obj); 2544 2545 cpu->dtb_compatible = "marvell,xscale"; 2546 set_feature(&cpu->env, ARM_FEATURE_V5); 2547 set_feature(&cpu->env, ARM_FEATURE_XSCALE); 2548 set_feature(&cpu->env, ARM_FEATURE_IWMMXT); 2549 cpu->midr = 0x69054117; 2550 cpu->ctr = 0xd172172; 2551 cpu->reset_sctlr = 0x00000078; 2552 } 2553 2554 #ifndef TARGET_AARCH64 2555 /* -cpu max: if KVM is enabled, like -cpu host (best possible with this host); 2556 * otherwise, a CPU with as many features enabled as our emulation supports. 2557 * The version of '-cpu max' for qemu-system-aarch64 is defined in cpu64.c; 2558 * this only needs to handle 32 bits. 2559 */ 2560 static void arm_max_initfn(Object *obj) 2561 { 2562 ARMCPU *cpu = ARM_CPU(obj); 2563 2564 if (kvm_enabled()) { 2565 kvm_arm_set_cpu_features_from_host(cpu); 2566 } else { 2567 cortex_a15_initfn(obj); 2568 2569 /* old-style VFP short-vector support */ 2570 cpu->isar.mvfr0 = FIELD_DP32(cpu->isar.mvfr0, MVFR0, FPSHVEC, 1); 2571 2572 #ifdef CONFIG_USER_ONLY 2573 /* We don't set these in system emulation mode for the moment, 2574 * since we don't correctly set (all of) the ID registers to 2575 * advertise them. 2576 */ 2577 set_feature(&cpu->env, ARM_FEATURE_V8); 2578 { 2579 uint32_t t; 2580 2581 t = cpu->isar.id_isar5; 2582 t = FIELD_DP32(t, ID_ISAR5, AES, 2); 2583 t = FIELD_DP32(t, ID_ISAR5, SHA1, 1); 2584 t = FIELD_DP32(t, ID_ISAR5, SHA2, 1); 2585 t = FIELD_DP32(t, ID_ISAR5, CRC32, 1); 2586 t = FIELD_DP32(t, ID_ISAR5, RDM, 1); 2587 t = FIELD_DP32(t, ID_ISAR5, VCMA, 1); 2588 cpu->isar.id_isar5 = t; 2589 2590 t = cpu->isar.id_isar6; 2591 t = FIELD_DP32(t, ID_ISAR6, JSCVT, 1); 2592 t = FIELD_DP32(t, ID_ISAR6, DP, 1); 2593 t = FIELD_DP32(t, ID_ISAR6, FHM, 1); 2594 t = FIELD_DP32(t, ID_ISAR6, SB, 1); 2595 t = FIELD_DP32(t, ID_ISAR6, SPECRES, 1); 2596 cpu->isar.id_isar6 = t; 2597 2598 t = cpu->isar.mvfr1; 2599 t = FIELD_DP32(t, MVFR1, FPHP, 2); /* v8.0 FP support */ 2600 cpu->isar.mvfr1 = t; 2601 2602 t = cpu->isar.mvfr2; 2603 t = FIELD_DP32(t, MVFR2, SIMDMISC, 3); /* SIMD MaxNum */ 2604 t = FIELD_DP32(t, MVFR2, FPMISC, 4); /* FP MaxNum */ 2605 cpu->isar.mvfr2 = t; 2606 2607 t = cpu->id_mmfr4; 2608 t = FIELD_DP32(t, ID_MMFR4, HPDS, 1); /* AA32HPD */ 2609 cpu->id_mmfr4 = t; 2610 } 2611 #endif 2612 } 2613 } 2614 #endif 2615 2616 #endif /* !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) */ 2617 2618 struct ARMCPUInfo { 2619 const char *name; 2620 void (*initfn)(Object *obj); 2621 void (*class_init)(ObjectClass *oc, void *data); 2622 }; 2623 2624 static const ARMCPUInfo arm_cpus[] = { 2625 #if !defined(CONFIG_USER_ONLY) || !defined(TARGET_AARCH64) 2626 { .name = "arm926", .initfn = arm926_initfn }, 2627 { .name = "arm946", .initfn = arm946_initfn }, 2628 { .name = "arm1026", .initfn = arm1026_initfn }, 2629 /* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an 2630 * older core than plain "arm1136". In particular this does not 2631 * have the v6K features. 2632 */ 2633 { .name = "arm1136-r2", .initfn = arm1136_r2_initfn }, 2634 { .name = "arm1136", .initfn = arm1136_initfn }, 2635 { .name = "arm1176", .initfn = arm1176_initfn }, 2636 { .name = "arm11mpcore", .initfn = arm11mpcore_initfn }, 2637 { .name = "cortex-m0", .initfn = cortex_m0_initfn, 2638 .class_init = arm_v7m_class_init }, 2639 { .name = "cortex-m3", .initfn = cortex_m3_initfn, 2640 .class_init = arm_v7m_class_init }, 2641 { .name = "cortex-m4", .initfn = cortex_m4_initfn, 2642 .class_init = arm_v7m_class_init }, 2643 { .name = "cortex-m7", .initfn = cortex_m7_initfn, 2644 .class_init = arm_v7m_class_init }, 2645 { .name = "cortex-m33", .initfn = cortex_m33_initfn, 2646 .class_init = arm_v7m_class_init }, 2647 { .name = "cortex-r5", .initfn = cortex_r5_initfn }, 2648 { .name = "cortex-r5f", .initfn = cortex_r5f_initfn }, 2649 { .name = "cortex-a7", .initfn = cortex_a7_initfn }, 2650 { .name = "cortex-a8", .initfn = cortex_a8_initfn }, 2651 { .name = "cortex-a9", .initfn = cortex_a9_initfn }, 2652 { .name = "cortex-a15", .initfn = cortex_a15_initfn }, 2653 { .name = "ti925t", .initfn = ti925t_initfn }, 2654 { .name = "sa1100", .initfn = sa1100_initfn }, 2655 { .name = "sa1110", .initfn = sa1110_initfn }, 2656 { .name = "pxa250", .initfn = pxa250_initfn }, 2657 { .name = "pxa255", .initfn = pxa255_initfn }, 2658 { .name = "pxa260", .initfn = pxa260_initfn }, 2659 { .name = "pxa261", .initfn = pxa261_initfn }, 2660 { .name = "pxa262", .initfn = pxa262_initfn }, 2661 /* "pxa270" is an alias for "pxa270-a0" */ 2662 { .name = "pxa270", .initfn = pxa270a0_initfn }, 2663 { .name = "pxa270-a0", .initfn = pxa270a0_initfn }, 2664 { .name = "pxa270-a1", .initfn = pxa270a1_initfn }, 2665 { .name = "pxa270-b0", .initfn = pxa270b0_initfn }, 2666 { .name = "pxa270-b1", .initfn = pxa270b1_initfn }, 2667 { .name = "pxa270-c0", .initfn = pxa270c0_initfn }, 2668 { .name = "pxa270-c5", .initfn = pxa270c5_initfn }, 2669 #ifndef TARGET_AARCH64 2670 { .name = "max", .initfn = arm_max_initfn }, 2671 #endif 2672 #ifdef CONFIG_USER_ONLY 2673 { .name = "any", .initfn = arm_max_initfn }, 2674 #endif 2675 #endif 2676 { .name = NULL } 2677 }; 2678 2679 static Property arm_cpu_properties[] = { 2680 DEFINE_PROP_BOOL("start-powered-off", ARMCPU, start_powered_off, false), 2681 DEFINE_PROP_UINT32("psci-conduit", ARMCPU, psci_conduit, 0), 2682 DEFINE_PROP_UINT32("midr", ARMCPU, midr, 0), 2683 DEFINE_PROP_UINT64("mp-affinity", ARMCPU, 2684 mp_affinity, ARM64_AFFINITY_INVALID), 2685 DEFINE_PROP_INT32("node-id", ARMCPU, node_id, CPU_UNSET_NUMA_NODE_ID), 2686 DEFINE_PROP_INT32("core-count", ARMCPU, core_count, -1), 2687 DEFINE_PROP_END_OF_LIST() 2688 }; 2689 2690 static gchar *arm_gdb_arch_name(CPUState *cs) 2691 { 2692 ARMCPU *cpu = ARM_CPU(cs); 2693 CPUARMState *env = &cpu->env; 2694 2695 if (arm_feature(env, ARM_FEATURE_IWMMXT)) { 2696 return g_strdup("iwmmxt"); 2697 } 2698 return g_strdup("arm"); 2699 } 2700 2701 static void arm_cpu_class_init(ObjectClass *oc, void *data) 2702 { 2703 ARMCPUClass *acc = ARM_CPU_CLASS(oc); 2704 CPUClass *cc = CPU_CLASS(acc); 2705 DeviceClass *dc = DEVICE_CLASS(oc); 2706 2707 device_class_set_parent_realize(dc, arm_cpu_realizefn, 2708 &acc->parent_realize); 2709 dc->props = arm_cpu_properties; 2710 2711 acc->parent_reset = cc->reset; 2712 cc->reset = arm_cpu_reset; 2713 2714 cc->class_by_name = arm_cpu_class_by_name; 2715 cc->has_work = arm_cpu_has_work; 2716 cc->cpu_exec_interrupt = arm_cpu_exec_interrupt; 2717 cc->dump_state = arm_cpu_dump_state; 2718 cc->set_pc = arm_cpu_set_pc; 2719 cc->synchronize_from_tb = arm_cpu_synchronize_from_tb; 2720 cc->gdb_read_register = arm_cpu_gdb_read_register; 2721 cc->gdb_write_register = arm_cpu_gdb_write_register; 2722 #ifndef CONFIG_USER_ONLY 2723 cc->do_interrupt = arm_cpu_do_interrupt; 2724 cc->get_phys_page_attrs_debug = arm_cpu_get_phys_page_attrs_debug; 2725 cc->asidx_from_attrs = arm_asidx_from_attrs; 2726 cc->vmsd = &vmstate_arm_cpu; 2727 cc->virtio_is_big_endian = arm_cpu_virtio_is_big_endian; 2728 cc->write_elf64_note = arm_cpu_write_elf64_note; 2729 cc->write_elf32_note = arm_cpu_write_elf32_note; 2730 #endif 2731 cc->gdb_num_core_regs = 26; 2732 cc->gdb_core_xml_file = "arm-core.xml"; 2733 cc->gdb_arch_name = arm_gdb_arch_name; 2734 cc->gdb_get_dynamic_xml = arm_gdb_get_dynamic_xml; 2735 cc->gdb_stop_before_watchpoint = true; 2736 cc->disas_set_info = arm_disas_set_info; 2737 #ifdef CONFIG_TCG 2738 cc->tcg_initialize = arm_translate_init; 2739 cc->tlb_fill = arm_cpu_tlb_fill; 2740 cc->debug_excp_handler = arm_debug_excp_handler; 2741 cc->debug_check_watchpoint = arm_debug_check_watchpoint; 2742 #if !defined(CONFIG_USER_ONLY) 2743 cc->do_unaligned_access = arm_cpu_do_unaligned_access; 2744 cc->do_transaction_failed = arm_cpu_do_transaction_failed; 2745 cc->adjust_watchpoint_address = arm_adjust_watchpoint_address; 2746 #endif /* CONFIG_TCG && !CONFIG_USER_ONLY */ 2747 #endif 2748 } 2749 2750 #ifdef CONFIG_KVM 2751 static void arm_host_initfn(Object *obj) 2752 { 2753 ARMCPU *cpu = ARM_CPU(obj); 2754 2755 kvm_arm_set_cpu_features_from_host(cpu); 2756 if (arm_feature(&cpu->env, ARM_FEATURE_AARCH64)) { 2757 aarch64_add_sve_properties(obj); 2758 } 2759 arm_cpu_post_init(obj); 2760 } 2761 2762 static const TypeInfo host_arm_cpu_type_info = { 2763 .name = TYPE_ARM_HOST_CPU, 2764 #ifdef TARGET_AARCH64 2765 .parent = TYPE_AARCH64_CPU, 2766 #else 2767 .parent = TYPE_ARM_CPU, 2768 #endif 2769 .instance_init = arm_host_initfn, 2770 }; 2771 2772 #endif 2773 2774 static void arm_cpu_instance_init(Object *obj) 2775 { 2776 ARMCPUClass *acc = ARM_CPU_GET_CLASS(obj); 2777 2778 acc->info->initfn(obj); 2779 arm_cpu_post_init(obj); 2780 } 2781 2782 static void cpu_register_class_init(ObjectClass *oc, void *data) 2783 { 2784 ARMCPUClass *acc = ARM_CPU_CLASS(oc); 2785 2786 acc->info = data; 2787 } 2788 2789 static void cpu_register(const ARMCPUInfo *info) 2790 { 2791 TypeInfo type_info = { 2792 .parent = TYPE_ARM_CPU, 2793 .instance_size = sizeof(ARMCPU), 2794 .instance_init = arm_cpu_instance_init, 2795 .class_size = sizeof(ARMCPUClass), 2796 .class_init = info->class_init ?: cpu_register_class_init, 2797 .class_data = (void *)info, 2798 }; 2799 2800 type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name); 2801 type_register(&type_info); 2802 g_free((void *)type_info.name); 2803 } 2804 2805 static const TypeInfo arm_cpu_type_info = { 2806 .name = TYPE_ARM_CPU, 2807 .parent = TYPE_CPU, 2808 .instance_size = sizeof(ARMCPU), 2809 .instance_init = arm_cpu_initfn, 2810 .instance_finalize = arm_cpu_finalizefn, 2811 .abstract = true, 2812 .class_size = sizeof(ARMCPUClass), 2813 .class_init = arm_cpu_class_init, 2814 }; 2815 2816 static const TypeInfo idau_interface_type_info = { 2817 .name = TYPE_IDAU_INTERFACE, 2818 .parent = TYPE_INTERFACE, 2819 .class_size = sizeof(IDAUInterfaceClass), 2820 }; 2821 2822 static void arm_cpu_register_types(void) 2823 { 2824 const ARMCPUInfo *info = arm_cpus; 2825 2826 type_register_static(&arm_cpu_type_info); 2827 type_register_static(&idau_interface_type_info); 2828 2829 while (info->name) { 2830 cpu_register(info); 2831 info++; 2832 } 2833 2834 #ifdef CONFIG_KVM 2835 type_register_static(&host_arm_cpu_type_info); 2836 #endif 2837 } 2838 2839 type_init(arm_cpu_register_types) 2840