target-arm/cpu.c

   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 "cpu.h"
  22 #include "qemu-common.h"
  23 #if !defined(CONFIG_USER_ONLY)
  24 #include "hw/loader.h"
  25 #endif
  26 #include "hw/arm/arm.h"
  27 #include "sysemu/sysemu.h"
  28 #include "sysemu/kvm.h"
  29
  30 static void arm_cpu_set_pc(CPUState *cs, vaddr value)
  31 {
  32     ARMCPU *cpu = ARM_CPU(cs);
  33
  34     cpu->env.regs[15] = value;
  35 }
  36
  37 static void cp_reg_reset(gpointer key, gpointer value, gpointer opaque)
  38 {
  39     /* Reset a single ARMCPRegInfo register */
  40     ARMCPRegInfo *ri = value;
  41     ARMCPU *cpu = opaque;
  42
  43     if (ri->type & ARM_CP_SPECIAL) {
  44         return;
  45     }
  46
  47     if (ri->resetfn) {
  48         ri->resetfn(&cpu->env, ri);
  49         return;
  50     }
  51
  52     /* A zero offset is never possible as it would be regs[0]
  53      * so we use it to indicate that reset is being handled elsewhere.
  54      * This is basically only used for fields in non-core coprocessors
  55      * (like the pxa2xx ones).
  56      */
  57     if (!ri->fieldoffset) {
  58         return;
  59     }
  60
  61     if (ri->type & ARM_CP_64BIT) {
  62         CPREG_FIELD64(&cpu->env, ri) = ri->resetvalue;
  63     } else {
  64         CPREG_FIELD32(&cpu->env, ri) = ri->resetvalue;
  65     }
  66 }
  67
  68 /* CPUClass::reset() */
  69 static void arm_cpu_reset(CPUState *s)
  70 {
  71     ARMCPU *cpu = ARM_CPU(s);
  72     ARMCPUClass *acc = ARM_CPU_GET_CLASS(cpu);
  73     CPUARMState *env = &cpu->env;
  74
  75     acc->parent_reset(s);
  76
  77     memset(env, 0, offsetof(CPUARMState, breakpoints));
  78     g_hash_table_foreach(cpu->cp_regs, cp_reg_reset, cpu);
  79     env->vfp.xregs[ARM_VFP_FPSID] = cpu->reset_fpsid;
  80     env->vfp.xregs[ARM_VFP_MVFR0] = cpu->mvfr0;
  81     env->vfp.xregs[ARM_VFP_MVFR1] = cpu->mvfr1;
  82
  83     if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
  84         env->iwmmxt.cregs[ARM_IWMMXT_wCID] = 0x69051000 | 'Q';
  85     }
  86
  87 #if defined(CONFIG_USER_ONLY)
  88     env->uncached_cpsr = ARM_CPU_MODE_USR;
  89     /* For user mode we must enable access to coprocessors */
  90     env->vfp.xregs[ARM_VFP_FPEXC] = 1 << 30;
  91     if (arm_feature(env, ARM_FEATURE_IWMMXT)) {
  92         env->cp15.c15_cpar = 3;
  93     } else if (arm_feature(env, ARM_FEATURE_XSCALE)) {
  94         env->cp15.c15_cpar = 1;
  95     }
  96 #else
  97     /* SVC mode with interrupts disabled.  */
  98     env->uncached_cpsr = ARM_CPU_MODE_SVC | CPSR_A | CPSR_F | CPSR_I;
  99     /* On ARMv7-M the CPSR_I is the value of the PRIMASK register, and is
 100        clear at reset.  Initial SP and PC are loaded from ROM.  */
 101     if (IS_M(env)) {
 102         uint32_t pc;
 103         uint8_t *rom;
 104         env->uncached_cpsr &= ~CPSR_I;
 105         rom = rom_ptr(0);
 106         if (rom) {
 107             /* We should really use ldl_phys here, in case the guest
 108                modified flash and reset itself.  However images
 109                loaded via -kernel have not been copied yet, so load the
 110                values directly from there.  */
 111             env->regs[13] = ldl_p(rom);
 112             pc = ldl_p(rom + 4);
 113             env->thumb = pc & 1;
 114             env->regs[15] = pc & ~1;
 115         }
 116     }
 117     env->vfp.xregs[ARM_VFP_FPEXC] = 0;
 118 #endif
 119     set_flush_to_zero(1, &env->vfp.standard_fp_status);
 120     set_flush_inputs_to_zero(1, &env->vfp.standard_fp_status);
 121     set_default_nan_mode(1, &env->vfp.standard_fp_status);
 122     set_float_detect_tininess(float_tininess_before_rounding,
 123                               &env->vfp.fp_status);
 124     set_float_detect_tininess(float_tininess_before_rounding,
 125                               &env->vfp.standard_fp_status);
 126     tlb_flush(env, 1);
 127     /* Reset is a state change for some CPUARMState fields which we
 128      * bake assumptions about into translated code, so we need to
 129      * tb_flush().
 130      */
 131     tb_flush(env);
 132 }
 133
 134 #ifndef CONFIG_USER_ONLY
 135 static void arm_cpu_set_irq(void *opaque, int irq, int level)
 136 {
 137     ARMCPU *cpu = opaque;
 138     CPUState *cs = CPU(cpu);
 139
 140     switch (irq) {
 141     case ARM_CPU_IRQ:
 142         if (level) {
 143             cpu_interrupt(cs, CPU_INTERRUPT_HARD);
 144         } else {
 145             cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
 146         }
 147         break;
 148     case ARM_CPU_FIQ:
 149         if (level) {
 150             cpu_interrupt(cs, CPU_INTERRUPT_FIQ);
 151         } else {
 152             cpu_reset_interrupt(cs, CPU_INTERRUPT_FIQ);
 153         }
 154         break;
 155     default:
 156         hw_error("arm_cpu_set_irq: Bad interrupt line %d\n", irq);
 157     }
 158 }
 159
 160 static void arm_cpu_kvm_set_irq(void *opaque, int irq, int level)
 161 {
 162 #ifdef CONFIG_KVM
 163     ARMCPU *cpu = opaque;
 164     CPUState *cs = CPU(cpu);
 165     int kvm_irq = KVM_ARM_IRQ_TYPE_CPU << KVM_ARM_IRQ_TYPE_SHIFT;
 166
 167     switch (irq) {
 168     case ARM_CPU_IRQ:
 169         kvm_irq |= KVM_ARM_IRQ_CPU_IRQ;
 170         break;
 171     case ARM_CPU_FIQ:
 172         kvm_irq |= KVM_ARM_IRQ_CPU_FIQ;
 173         break;
 174     default:
 175         hw_error("arm_cpu_kvm_set_irq: Bad interrupt line %d\n", irq);
 176     }
 177     kvm_irq |= cs->cpu_index << KVM_ARM_IRQ_VCPU_SHIFT;
 178     kvm_set_irq(kvm_state, kvm_irq, level ? 1 : 0);
 179 #endif
 180 }
 181 #endif
 182
 183 static inline void set_feature(CPUARMState *env, int feature)
 184 {
 185     env->features |= 1ULL << feature;
 186 }
 187
 188 static void arm_cpu_initfn(Object *obj)
 189 {
 190     CPUState *cs = CPU(obj);
 191     ARMCPU *cpu = ARM_CPU(obj);
 192     static bool inited;
 193
 194     cs->env_ptr = &cpu->env;
 195     cpu_exec_init(&cpu->env);
 196     cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal,
 197                                          g_free, g_free);
 198
 199 #ifndef CONFIG_USER_ONLY
 200     /* Our inbound IRQ and FIQ lines */
 201     if (kvm_enabled()) {
 202         qdev_init_gpio_in(DEVICE(cpu), arm_cpu_kvm_set_irq, 2);
 203     } else {
 204         qdev_init_gpio_in(DEVICE(cpu), arm_cpu_set_irq, 2);
 205     }
 206
 207     cpu->gt_timer[GTIMER_PHYS] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
 208                                                 arm_gt_ptimer_cb, cpu);
 209     cpu->gt_timer[GTIMER_VIRT] = timer_new(QEMU_CLOCK_VIRTUAL, GTIMER_SCALE,
 210                                                 arm_gt_vtimer_cb, cpu);
 211     qdev_init_gpio_out(DEVICE(cpu), cpu->gt_timer_outputs,
 212                        ARRAY_SIZE(cpu->gt_timer_outputs));
 213 #endif
 214
 215     if (tcg_enabled() && !inited) {
 216         inited = true;
 217         arm_translate_init();
 218     }
 219 }
 220
 221 static void arm_cpu_finalizefn(Object *obj)
 222 {
 223     ARMCPU *cpu = ARM_CPU(obj);
 224     g_hash_table_destroy(cpu->cp_regs);
 225 }
 226
 227 static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
 228 {
 229     CPUState *cs = CPU(dev);
 230     ARMCPU *cpu = ARM_CPU(dev);
 231     ARMCPUClass *acc = ARM_CPU_GET_CLASS(dev);
 232     CPUARMState *env = &cpu->env;
 233
 234     /* Some features automatically imply others: */
 235     if (arm_feature(env, ARM_FEATURE_V8)) {
 236         set_feature(env, ARM_FEATURE_V7);
 237         set_feature(env, ARM_FEATURE_ARM_DIV);
 238         set_feature(env, ARM_FEATURE_LPAE);
 239     }
 240     if (arm_feature(env, ARM_FEATURE_V7)) {
 241         set_feature(env, ARM_FEATURE_VAPA);
 242         set_feature(env, ARM_FEATURE_THUMB2);
 243         set_feature(env, ARM_FEATURE_MPIDR);
 244         if (!arm_feature(env, ARM_FEATURE_M)) {
 245             set_feature(env, ARM_FEATURE_V6K);
 246         } else {
 247             set_feature(env, ARM_FEATURE_V6);
 248         }
 249     }
 250     if (arm_feature(env, ARM_FEATURE_V6K)) {
 251         set_feature(env, ARM_FEATURE_V6);
 252         set_feature(env, ARM_FEATURE_MVFR);
 253     }
 254     if (arm_feature(env, ARM_FEATURE_V6)) {
 255         set_feature(env, ARM_FEATURE_V5);
 256         if (!arm_feature(env, ARM_FEATURE_M)) {
 257             set_feature(env, ARM_FEATURE_AUXCR);
 258         }
 259     }
 260     if (arm_feature(env, ARM_FEATURE_V5)) {
 261         set_feature(env, ARM_FEATURE_V4T);
 262     }
 263     if (arm_feature(env, ARM_FEATURE_M)) {
 264         set_feature(env, ARM_FEATURE_THUMB_DIV);
 265     }
 266     if (arm_feature(env, ARM_FEATURE_ARM_DIV)) {
 267         set_feature(env, ARM_FEATURE_THUMB_DIV);
 268     }
 269     if (arm_feature(env, ARM_FEATURE_VFP4)) {
 270         set_feature(env, ARM_FEATURE_VFP3);
 271     }
 272     if (arm_feature(env, ARM_FEATURE_VFP3)) {
 273         set_feature(env, ARM_FEATURE_VFP);
 274     }
 275     if (arm_feature(env, ARM_FEATURE_LPAE)) {
 276         set_feature(env, ARM_FEATURE_V7MP);
 277         set_feature(env, ARM_FEATURE_PXN);
 278     }
 279
 280     register_cp_regs_for_features(cpu);
 281     arm_cpu_register_gdb_regs_for_features(cpu);
 282
 283     init_cpreg_list(cpu);
 284
 285     cpu_reset(cs);
 286     qemu_init_vcpu(cs);
 287
 288     acc->parent_realize(dev, errp);
 289 }
 290
 291 /* CPU models */
 292
 293 static ObjectClass *arm_cpu_class_by_name(const char *cpu_model)
 294 {
 295     ObjectClass *oc;
 296     char *typename;
 297
 298     if (!cpu_model) {
 299         return NULL;
 300     }
 301
 302     typename = g_strdup_printf("%s-" TYPE_ARM_CPU, cpu_model);
 303     oc = object_class_by_name(typename);
 304     g_free(typename);
 305     if (!oc || !object_class_dynamic_cast(oc, TYPE_ARM_CPU) ||
 306         object_class_is_abstract(oc)) {
 307         return NULL;
 308     }
 309     return oc;
 310 }
 311
 312 static void arm926_initfn(Object *obj)
 313 {
 314     ARMCPU *cpu = ARM_CPU(obj);
 315     set_feature(&cpu->env, ARM_FEATURE_V5);
 316     set_feature(&cpu->env, ARM_FEATURE_VFP);
 317     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 318     set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
 319     cpu->midr = 0x41069265;
 320     cpu->reset_fpsid = 0x41011090;
 321     cpu->ctr = 0x1dd20d2;
 322     cpu->reset_sctlr = 0x00090078;
 323 }
 324
 325 static void arm946_initfn(Object *obj)
 326 {
 327     ARMCPU *cpu = ARM_CPU(obj);
 328     set_feature(&cpu->env, ARM_FEATURE_V5);
 329     set_feature(&cpu->env, ARM_FEATURE_MPU);
 330     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 331     cpu->midr = 0x41059461;
 332     cpu->ctr = 0x0f004006;
 333     cpu->reset_sctlr = 0x00000078;
 334 }
 335
 336 static void arm1026_initfn(Object *obj)
 337 {
 338     ARMCPU *cpu = ARM_CPU(obj);
 339     set_feature(&cpu->env, ARM_FEATURE_V5);
 340     set_feature(&cpu->env, ARM_FEATURE_VFP);
 341     set_feature(&cpu->env, ARM_FEATURE_AUXCR);
 342     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 343     set_feature(&cpu->env, ARM_FEATURE_CACHE_TEST_CLEAN);
 344     cpu->midr = 0x4106a262;
 345     cpu->reset_fpsid = 0x410110a0;
 346     cpu->ctr = 0x1dd20d2;
 347     cpu->reset_sctlr = 0x00090078;
 348     cpu->reset_auxcr = 1;
 349     {
 350         /* The 1026 had an IFAR at c6,c0,0,1 rather than the ARMv6 c6,c0,0,2 */
 351         ARMCPRegInfo ifar = {
 352             .name = "IFAR", .cp = 15, .crn = 6, .crm = 0, .opc1 = 0, .opc2 = 1,
 353             .access = PL1_RW,
 354             .fieldoffset = offsetof(CPUARMState, cp15.c6_insn),
 355             .resetvalue = 0
 356         };
 357         define_one_arm_cp_reg(cpu, &ifar);
 358     }
 359 }
 360
 361 static void arm1136_r2_initfn(Object *obj)
 362 {
 363     ARMCPU *cpu = ARM_CPU(obj);
 364     /* What qemu calls "arm1136_r2" is actually the 1136 r0p2, ie an
 365      * older core than plain "arm1136". In particular this does not
 366      * have the v6K features.
 367      * These ID register values are correct for 1136 but may be wrong
 368      * for 1136_r2 (in particular r0p2 does not actually implement most
 369      * of the ID registers).
 370      */
 371     set_feature(&cpu->env, ARM_FEATURE_V6);
 372     set_feature(&cpu->env, ARM_FEATURE_VFP);
 373     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 374     set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
 375     set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
 376     cpu->midr = 0x4107b362;
 377     cpu->reset_fpsid = 0x410120b4;
 378     cpu->mvfr0 = 0x11111111;
 379     cpu->mvfr1 = 0x00000000;
 380     cpu->ctr = 0x1dd20d2;
 381     cpu->reset_sctlr = 0x00050078;
 382     cpu->id_pfr0 = 0x111;
 383     cpu->id_pfr1 = 0x1;
 384     cpu->id_dfr0 = 0x2;
 385     cpu->id_afr0 = 0x3;
 386     cpu->id_mmfr0 = 0x01130003;
 387     cpu->id_mmfr1 = 0x10030302;
 388     cpu->id_mmfr2 = 0x01222110;
 389     cpu->id_isar0 = 0x00140011;
 390     cpu->id_isar1 = 0x12002111;
 391     cpu->id_isar2 = 0x11231111;
 392     cpu->id_isar3 = 0x01102131;
 393     cpu->id_isar4 = 0x141;
 394     cpu->reset_auxcr = 7;
 395 }
 396
 397 static void arm1136_initfn(Object *obj)
 398 {
 399     ARMCPU *cpu = ARM_CPU(obj);
 400     set_feature(&cpu->env, ARM_FEATURE_V6K);
 401     set_feature(&cpu->env, ARM_FEATURE_V6);
 402     set_feature(&cpu->env, ARM_FEATURE_VFP);
 403     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 404     set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
 405     set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
 406     cpu->midr = 0x4117b363;
 407     cpu->reset_fpsid = 0x410120b4;
 408     cpu->mvfr0 = 0x11111111;
 409     cpu->mvfr1 = 0x00000000;
 410     cpu->ctr = 0x1dd20d2;
 411     cpu->reset_sctlr = 0x00050078;
 412     cpu->id_pfr0 = 0x111;
 413     cpu->id_pfr1 = 0x1;
 414     cpu->id_dfr0 = 0x2;
 415     cpu->id_afr0 = 0x3;
 416     cpu->id_mmfr0 = 0x01130003;
 417     cpu->id_mmfr1 = 0x10030302;
 418     cpu->id_mmfr2 = 0x01222110;
 419     cpu->id_isar0 = 0x00140011;
 420     cpu->id_isar1 = 0x12002111;
 421     cpu->id_isar2 = 0x11231111;
 422     cpu->id_isar3 = 0x01102131;
 423     cpu->id_isar4 = 0x141;
 424     cpu->reset_auxcr = 7;
 425 }
 426
 427 static void arm1176_initfn(Object *obj)
 428 {
 429     ARMCPU *cpu = ARM_CPU(obj);
 430     set_feature(&cpu->env, ARM_FEATURE_V6K);
 431     set_feature(&cpu->env, ARM_FEATURE_VFP);
 432     set_feature(&cpu->env, ARM_FEATURE_VAPA);
 433     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 434     set_feature(&cpu->env, ARM_FEATURE_CACHE_DIRTY_REG);
 435     set_feature(&cpu->env, ARM_FEATURE_CACHE_BLOCK_OPS);
 436     cpu->midr = 0x410fb767;
 437     cpu->reset_fpsid = 0x410120b5;
 438     cpu->mvfr0 = 0x11111111;
 439     cpu->mvfr1 = 0x00000000;
 440     cpu->ctr = 0x1dd20d2;
 441     cpu->reset_sctlr = 0x00050078;
 442     cpu->id_pfr0 = 0x111;
 443     cpu->id_pfr1 = 0x11;
 444     cpu->id_dfr0 = 0x33;
 445     cpu->id_afr0 = 0;
 446     cpu->id_mmfr0 = 0x01130003;
 447     cpu->id_mmfr1 = 0x10030302;
 448     cpu->id_mmfr2 = 0x01222100;
 449     cpu->id_isar0 = 0x0140011;
 450     cpu->id_isar1 = 0x12002111;
 451     cpu->id_isar2 = 0x11231121;
 452     cpu->id_isar3 = 0x01102131;
 453     cpu->id_isar4 = 0x01141;
 454     cpu->reset_auxcr = 7;
 455 }
 456
 457 static void arm11mpcore_initfn(Object *obj)
 458 {
 459     ARMCPU *cpu = ARM_CPU(obj);
 460     set_feature(&cpu->env, ARM_FEATURE_V6K);
 461     set_feature(&cpu->env, ARM_FEATURE_VFP);
 462     set_feature(&cpu->env, ARM_FEATURE_VAPA);
 463     set_feature(&cpu->env, ARM_FEATURE_MPIDR);
 464     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 465     cpu->midr = 0x410fb022;
 466     cpu->reset_fpsid = 0x410120b4;
 467     cpu->mvfr0 = 0x11111111;
 468     cpu->mvfr1 = 0x00000000;
 469     cpu->ctr = 0x1d192992; /* 32K icache 32K dcache */
 470     cpu->id_pfr0 = 0x111;
 471     cpu->id_pfr1 = 0x1;
 472     cpu->id_dfr0 = 0;
 473     cpu->id_afr0 = 0x2;
 474     cpu->id_mmfr0 = 0x01100103;
 475     cpu->id_mmfr1 = 0x10020302;
 476     cpu->id_mmfr2 = 0x01222000;
 477     cpu->id_isar0 = 0x00100011;
 478     cpu->id_isar1 = 0x12002111;
 479     cpu->id_isar2 = 0x11221011;
 480     cpu->id_isar3 = 0x01102131;
 481     cpu->id_isar4 = 0x141;
 482     cpu->reset_auxcr = 1;
 483 }
 484
 485 static void cortex_m3_initfn(Object *obj)
 486 {
 487     ARMCPU *cpu = ARM_CPU(obj);
 488     set_feature(&cpu->env, ARM_FEATURE_V7);
 489     set_feature(&cpu->env, ARM_FEATURE_M);
 490     cpu->midr = 0x410fc231;
 491 }
 492
 493 static void arm_v7m_class_init(ObjectClass *oc, void *data)
 494 {
 495 #ifndef CONFIG_USER_ONLY
 496     CPUClass *cc = CPU_CLASS(oc);
 497
 498     cc->do_interrupt = arm_v7m_cpu_do_interrupt;
 499 #endif
 500 }
 501
 502 static const ARMCPRegInfo cortexa8_cp_reginfo[] = {
 503     { .name = "L2LOCKDOWN", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 0,
 504       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
 505     { .name = "L2AUXCR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
 506       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
 507     REGINFO_SENTINEL
 508 };
 509
 510 static void cortex_a8_initfn(Object *obj)
 511 {
 512     ARMCPU *cpu = ARM_CPU(obj);
 513     set_feature(&cpu->env, ARM_FEATURE_V7);
 514     set_feature(&cpu->env, ARM_FEATURE_VFP3);
 515     set_feature(&cpu->env, ARM_FEATURE_NEON);
 516     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
 517     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 518     cpu->midr = 0x410fc080;
 519     cpu->reset_fpsid = 0x410330c0;
 520     cpu->mvfr0 = 0x11110222;
 521     cpu->mvfr1 = 0x00011100;
 522     cpu->ctr = 0x82048004;
 523     cpu->reset_sctlr = 0x00c50078;
 524     cpu->id_pfr0 = 0x1031;
 525     cpu->id_pfr1 = 0x11;
 526     cpu->id_dfr0 = 0x400;
 527     cpu->id_afr0 = 0;
 528     cpu->id_mmfr0 = 0x31100003;
 529     cpu->id_mmfr1 = 0x20000000;
 530     cpu->id_mmfr2 = 0x01202000;
 531     cpu->id_mmfr3 = 0x11;
 532     cpu->id_isar0 = 0x00101111;
 533     cpu->id_isar1 = 0x12112111;
 534     cpu->id_isar2 = 0x21232031;
 535     cpu->id_isar3 = 0x11112131;
 536     cpu->id_isar4 = 0x00111142;
 537     cpu->clidr = (1 << 27) | (2 << 24) | 3;
 538     cpu->ccsidr[0] = 0xe007e01a; /* 16k L1 dcache. */
 539     cpu->ccsidr[1] = 0x2007e01a; /* 16k L1 icache. */
 540     cpu->ccsidr[2] = 0xf0000000; /* No L2 icache. */
 541     cpu->reset_auxcr = 2;
 542     define_arm_cp_regs(cpu, cortexa8_cp_reginfo);
 543 }
 544
 545 static const ARMCPRegInfo cortexa9_cp_reginfo[] = {
 546     /* power_control should be set to maximum latency. Again,
 547      * default to 0 and set by private hook
 548      */
 549     { .name = "A9_PWRCTL", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 0,
 550       .access = PL1_RW, .resetvalue = 0,
 551       .fieldoffset = offsetof(CPUARMState, cp15.c15_power_control) },
 552     { .name = "A9_DIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 1,
 553       .access = PL1_RW, .resetvalue = 0,
 554       .fieldoffset = offsetof(CPUARMState, cp15.c15_diagnostic) },
 555     { .name = "A9_PWRDIAG", .cp = 15, .crn = 15, .crm = 0, .opc1 = 0, .opc2 = 2,
 556       .access = PL1_RW, .resetvalue = 0,
 557       .fieldoffset = offsetof(CPUARMState, cp15.c15_power_diagnostic) },
 558     { .name = "NEONBUSY", .cp = 15, .crn = 15, .crm = 1, .opc1 = 0, .opc2 = 0,
 559       .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
 560     /* TLB lockdown control */
 561     { .name = "TLB_LOCKR", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 2,
 562       .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
 563     { .name = "TLB_LOCKW", .cp = 15, .crn = 15, .crm = 4, .opc1 = 5, .opc2 = 4,
 564       .access = PL1_W, .resetvalue = 0, .type = ARM_CP_NOP },
 565     { .name = "TLB_VA", .cp = 15, .crn = 15, .crm = 5, .opc1 = 5, .opc2 = 2,
 566       .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
 567     { .name = "TLB_PA", .cp = 15, .crn = 15, .crm = 6, .opc1 = 5, .opc2 = 2,
 568       .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
 569     { .name = "TLB_ATTR", .cp = 15, .crn = 15, .crm = 7, .opc1 = 5, .opc2 = 2,
 570       .access = PL1_RW, .resetvalue = 0, .type = ARM_CP_CONST },
 571     REGINFO_SENTINEL
 572 };
 573
 574 static void cortex_a9_initfn(Object *obj)
 575 {
 576     ARMCPU *cpu = ARM_CPU(obj);
 577     set_feature(&cpu->env, ARM_FEATURE_V7);
 578     set_feature(&cpu->env, ARM_FEATURE_VFP3);
 579     set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
 580     set_feature(&cpu->env, ARM_FEATURE_NEON);
 581     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
 582     /* Note that A9 supports the MP extensions even for
 583      * A9UP and single-core A9MP (which are both different
 584      * and valid configurations; we don't model A9UP).
 585      */
 586     set_feature(&cpu->env, ARM_FEATURE_V7MP);
 587     cpu->midr = 0x410fc090;
 588     cpu->reset_fpsid = 0x41033090;
 589     cpu->mvfr0 = 0x11110222;
 590     cpu->mvfr1 = 0x01111111;
 591     cpu->ctr = 0x80038003;
 592     cpu->reset_sctlr = 0x00c50078;
 593     cpu->id_pfr0 = 0x1031;
 594     cpu->id_pfr1 = 0x11;
 595     cpu->id_dfr0 = 0x000;
 596     cpu->id_afr0 = 0;
 597     cpu->id_mmfr0 = 0x00100103;
 598     cpu->id_mmfr1 = 0x20000000;
 599     cpu->id_mmfr2 = 0x01230000;
 600     cpu->id_mmfr3 = 0x00002111;
 601     cpu->id_isar0 = 0x00101111;
 602     cpu->id_isar1 = 0x13112111;
 603     cpu->id_isar2 = 0x21232041;
 604     cpu->id_isar3 = 0x11112131;
 605     cpu->id_isar4 = 0x00111142;
 606     cpu->clidr = (1 << 27) | (1 << 24) | 3;
 607     cpu->ccsidr[0] = 0xe00fe015; /* 16k L1 dcache. */
 608     cpu->ccsidr[1] = 0x200fe015; /* 16k L1 icache. */
 609     {
 610         ARMCPRegInfo cbar = {
 611             .name = "CBAR", .cp = 15, .crn = 15,  .crm = 0, .opc1 = 4,
 612             .opc2 = 0, .access = PL1_R|PL3_W, .resetvalue = cpu->reset_cbar,
 613             .fieldoffset = offsetof(CPUARMState, cp15.c15_config_base_address)
 614         };
 615         define_one_arm_cp_reg(cpu, &cbar);
 616         define_arm_cp_regs(cpu, cortexa9_cp_reginfo);
 617     }
 618 }
 619
 620 #ifndef CONFIG_USER_ONLY
 621 static int a15_l2ctlr_read(CPUARMState *env, const ARMCPRegInfo *ri,
 622                            uint64_t *value)
 623 {
 624     /* Linux wants the number of processors from here.
 625      * Might as well set the interrupt-controller bit too.
 626      */
 627     *value = ((smp_cpus - 1) << 24) | (1 << 23);
 628     return 0;
 629 }
 630 #endif
 631
 632 static const ARMCPRegInfo cortexa15_cp_reginfo[] = {
 633 #ifndef CONFIG_USER_ONLY
 634     { .name = "L2CTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 2,
 635       .access = PL1_RW, .resetvalue = 0, .readfn = a15_l2ctlr_read,
 636       .writefn = arm_cp_write_ignore, },
 637 #endif
 638     { .name = "L2ECTLR", .cp = 15, .crn = 9, .crm = 0, .opc1 = 1, .opc2 = 3,
 639       .access = PL1_RW, .type = ARM_CP_CONST, .resetvalue = 0 },
 640     REGINFO_SENTINEL
 641 };
 642
 643 static void cortex_a15_initfn(Object *obj)
 644 {
 645     ARMCPU *cpu = ARM_CPU(obj);
 646     set_feature(&cpu->env, ARM_FEATURE_V7);
 647     set_feature(&cpu->env, ARM_FEATURE_VFP4);
 648     set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
 649     set_feature(&cpu->env, ARM_FEATURE_NEON);
 650     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
 651     set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
 652     set_feature(&cpu->env, ARM_FEATURE_GENERIC_TIMER);
 653     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 654     set_feature(&cpu->env, ARM_FEATURE_LPAE);
 655     cpu->midr = 0x412fc0f1;
 656     cpu->reset_fpsid = 0x410430f0;
 657     cpu->mvfr0 = 0x10110222;
 658     cpu->mvfr1 = 0x11111111;
 659     cpu->ctr = 0x8444c004;
 660     cpu->reset_sctlr = 0x00c50078;
 661     cpu->id_pfr0 = 0x00001131;
 662     cpu->id_pfr1 = 0x00011011;
 663     cpu->id_dfr0 = 0x02010555;
 664     cpu->id_afr0 = 0x00000000;
 665     cpu->id_mmfr0 = 0x10201105;
 666     cpu->id_mmfr1 = 0x20000000;
 667     cpu->id_mmfr2 = 0x01240000;
 668     cpu->id_mmfr3 = 0x02102211;
 669     cpu->id_isar0 = 0x02101110;
 670     cpu->id_isar1 = 0x13112111;
 671     cpu->id_isar2 = 0x21232041;
 672     cpu->id_isar3 = 0x11112131;
 673     cpu->id_isar4 = 0x10011142;
 674     cpu->clidr = 0x0a200023;
 675     cpu->ccsidr[0] = 0x701fe00a; /* 32K L1 dcache */
 676     cpu->ccsidr[1] = 0x201fe00a; /* 32K L1 icache */
 677     cpu->ccsidr[2] = 0x711fe07a; /* 4096K L2 unified cache */
 678     define_arm_cp_regs(cpu, cortexa15_cp_reginfo);
 679 }
 680
 681 static void ti925t_initfn(Object *obj)
 682 {
 683     ARMCPU *cpu = ARM_CPU(obj);
 684     set_feature(&cpu->env, ARM_FEATURE_V4T);
 685     set_feature(&cpu->env, ARM_FEATURE_OMAPCP);
 686     cpu->midr = ARM_CPUID_TI925T;
 687     cpu->ctr = 0x5109149;
 688     cpu->reset_sctlr = 0x00000070;
 689 }
 690
 691 static void sa1100_initfn(Object *obj)
 692 {
 693     ARMCPU *cpu = ARM_CPU(obj);
 694     set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
 695     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 696     cpu->midr = 0x4401A11B;
 697     cpu->reset_sctlr = 0x00000070;
 698 }
 699
 700 static void sa1110_initfn(Object *obj)
 701 {
 702     ARMCPU *cpu = ARM_CPU(obj);
 703     set_feature(&cpu->env, ARM_FEATURE_STRONGARM);
 704     set_feature(&cpu->env, ARM_FEATURE_DUMMY_C15_REGS);
 705     cpu->midr = 0x6901B119;
 706     cpu->reset_sctlr = 0x00000070;
 707 }
 708
 709 static void pxa250_initfn(Object *obj)
 710 {
 711     ARMCPU *cpu = ARM_CPU(obj);
 712     set_feature(&cpu->env, ARM_FEATURE_V5);
 713     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 714     cpu->midr = 0x69052100;
 715     cpu->ctr = 0xd172172;
 716     cpu->reset_sctlr = 0x00000078;
 717 }
 718
 719 static void pxa255_initfn(Object *obj)
 720 {
 721     ARMCPU *cpu = ARM_CPU(obj);
 722     set_feature(&cpu->env, ARM_FEATURE_V5);
 723     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 724     cpu->midr = 0x69052d00;
 725     cpu->ctr = 0xd172172;
 726     cpu->reset_sctlr = 0x00000078;
 727 }
 728
 729 static void pxa260_initfn(Object *obj)
 730 {
 731     ARMCPU *cpu = ARM_CPU(obj);
 732     set_feature(&cpu->env, ARM_FEATURE_V5);
 733     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 734     cpu->midr = 0x69052903;
 735     cpu->ctr = 0xd172172;
 736     cpu->reset_sctlr = 0x00000078;
 737 }
 738
 739 static void pxa261_initfn(Object *obj)
 740 {
 741     ARMCPU *cpu = ARM_CPU(obj);
 742     set_feature(&cpu->env, ARM_FEATURE_V5);
 743     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 744     cpu->midr = 0x69052d05;
 745     cpu->ctr = 0xd172172;
 746     cpu->reset_sctlr = 0x00000078;
 747 }
 748
 749 static void pxa262_initfn(Object *obj)
 750 {
 751     ARMCPU *cpu = ARM_CPU(obj);
 752     set_feature(&cpu->env, ARM_FEATURE_V5);
 753     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 754     cpu->midr = 0x69052d06;
 755     cpu->ctr = 0xd172172;
 756     cpu->reset_sctlr = 0x00000078;
 757 }
 758
 759 static void pxa270a0_initfn(Object *obj)
 760 {
 761     ARMCPU *cpu = ARM_CPU(obj);
 762     set_feature(&cpu->env, ARM_FEATURE_V5);
 763     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 764     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
 765     cpu->midr = 0x69054110;
 766     cpu->ctr = 0xd172172;
 767     cpu->reset_sctlr = 0x00000078;
 768 }
 769
 770 static void pxa270a1_initfn(Object *obj)
 771 {
 772     ARMCPU *cpu = ARM_CPU(obj);
 773     set_feature(&cpu->env, ARM_FEATURE_V5);
 774     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 775     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
 776     cpu->midr = 0x69054111;
 777     cpu->ctr = 0xd172172;
 778     cpu->reset_sctlr = 0x00000078;
 779 }
 780
 781 static void pxa270b0_initfn(Object *obj)
 782 {
 783     ARMCPU *cpu = ARM_CPU(obj);
 784     set_feature(&cpu->env, ARM_FEATURE_V5);
 785     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 786     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
 787     cpu->midr = 0x69054112;
 788     cpu->ctr = 0xd172172;
 789     cpu->reset_sctlr = 0x00000078;
 790 }
 791
 792 static void pxa270b1_initfn(Object *obj)
 793 {
 794     ARMCPU *cpu = ARM_CPU(obj);
 795     set_feature(&cpu->env, ARM_FEATURE_V5);
 796     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 797     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
 798     cpu->midr = 0x69054113;
 799     cpu->ctr = 0xd172172;
 800     cpu->reset_sctlr = 0x00000078;
 801 }
 802
 803 static void pxa270c0_initfn(Object *obj)
 804 {
 805     ARMCPU *cpu = ARM_CPU(obj);
 806     set_feature(&cpu->env, ARM_FEATURE_V5);
 807     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 808     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
 809     cpu->midr = 0x69054114;
 810     cpu->ctr = 0xd172172;
 811     cpu->reset_sctlr = 0x00000078;
 812 }
 813
 814 static void pxa270c5_initfn(Object *obj)
 815 {
 816     ARMCPU *cpu = ARM_CPU(obj);
 817     set_feature(&cpu->env, ARM_FEATURE_V5);
 818     set_feature(&cpu->env, ARM_FEATURE_XSCALE);
 819     set_feature(&cpu->env, ARM_FEATURE_IWMMXT);
 820     cpu->midr = 0x69054117;
 821     cpu->ctr = 0xd172172;
 822     cpu->reset_sctlr = 0x00000078;
 823 }
 824
 825 static void arm_any_initfn(Object *obj)
 826 {
 827     ARMCPU *cpu = ARM_CPU(obj);
 828     set_feature(&cpu->env, ARM_FEATURE_V8);
 829     set_feature(&cpu->env, ARM_FEATURE_VFP4);
 830     set_feature(&cpu->env, ARM_FEATURE_VFP_FP16);
 831     set_feature(&cpu->env, ARM_FEATURE_NEON);
 832     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
 833     set_feature(&cpu->env, ARM_FEATURE_ARM_DIV);
 834     set_feature(&cpu->env, ARM_FEATURE_V7MP);
 835     cpu->midr = 0xffffffff;
 836 }
 837
 838 typedef struct ARMCPUInfo {
 839     const char *name;
 840     void (*initfn)(Object *obj);
 841     void (*class_init)(ObjectClass *oc, void *data);
 842 } ARMCPUInfo;
 843
 844 static const ARMCPUInfo arm_cpus[] = {
 845     { .name = "arm926",      .initfn = arm926_initfn },
 846     { .name = "arm946",      .initfn = arm946_initfn },
 847     { .name = "arm1026",     .initfn = arm1026_initfn },
 848     /* What QEMU calls "arm1136-r2" is actually the 1136 r0p2, i.e. an
 849      * older core than plain "arm1136". In particular this does not
 850      * have the v6K features.
 851      */
 852     { .name = "arm1136-r2",  .initfn = arm1136_r2_initfn },
 853     { .name = "arm1136",     .initfn = arm1136_initfn },
 854     { .name = "arm1176",     .initfn = arm1176_initfn },
 855     { .name = "arm11mpcore", .initfn = arm11mpcore_initfn },
 856     { .name = "cortex-m3",   .initfn = cortex_m3_initfn,
 857                              .class_init = arm_v7m_class_init },
 858     { .name = "cortex-a8",   .initfn = cortex_a8_initfn },
 859     { .name = "cortex-a9",   .initfn = cortex_a9_initfn },
 860     { .name = "cortex-a15",  .initfn = cortex_a15_initfn },
 861     { .name = "ti925t",      .initfn = ti925t_initfn },
 862     { .name = "sa1100",      .initfn = sa1100_initfn },
 863     { .name = "sa1110",      .initfn = sa1110_initfn },
 864     { .name = "pxa250",      .initfn = pxa250_initfn },
 865     { .name = "pxa255",      .initfn = pxa255_initfn },
 866     { .name = "pxa260",      .initfn = pxa260_initfn },
 867     { .name = "pxa261",      .initfn = pxa261_initfn },
 868     { .name = "pxa262",      .initfn = pxa262_initfn },
 869     /* "pxa270" is an alias for "pxa270-a0" */
 870     { .name = "pxa270",      .initfn = pxa270a0_initfn },
 871     { .name = "pxa270-a0",   .initfn = pxa270a0_initfn },
 872     { .name = "pxa270-a1",   .initfn = pxa270a1_initfn },
 873     { .name = "pxa270-b0",   .initfn = pxa270b0_initfn },
 874     { .name = "pxa270-b1",   .initfn = pxa270b1_initfn },
 875     { .name = "pxa270-c0",   .initfn = pxa270c0_initfn },
 876     { .name = "pxa270-c5",   .initfn = pxa270c5_initfn },
 877     { .name = "any",         .initfn = arm_any_initfn },
 878 };
 879
 880 static void arm_cpu_class_init(ObjectClass *oc, void *data)
 881 {
 882     ARMCPUClass *acc = ARM_CPU_CLASS(oc);
 883     CPUClass *cc = CPU_CLASS(acc);
 884     DeviceClass *dc = DEVICE_CLASS(oc);
 885
 886     acc->parent_realize = dc->realize;
 887     dc->realize = arm_cpu_realizefn;
 888
 889     acc->parent_reset = cc->reset;
 890     cc->reset = arm_cpu_reset;
 891
 892     cc->class_by_name = arm_cpu_class_by_name;
 893     cc->do_interrupt = arm_cpu_do_interrupt;
 894     cc->dump_state = arm_cpu_dump_state;
 895     cc->set_pc = arm_cpu_set_pc;
 896     cc->gdb_read_register = arm_cpu_gdb_read_register;
 897     cc->gdb_write_register = arm_cpu_gdb_write_register;
 898 #ifndef CONFIG_USER_ONLY
 899     cc->get_phys_page_debug = arm_cpu_get_phys_page_debug;
 900     cc->vmsd = &vmstate_arm_cpu;
 901 #endif
 902     cc->gdb_num_core_regs = 26;
 903     cc->gdb_core_xml_file = "arm-core.xml";
 904 }
 905
 906 static void cpu_register(const ARMCPUInfo *info)
 907 {
 908     TypeInfo type_info = {
 909         .parent = TYPE_ARM_CPU,
 910         .instance_size = sizeof(ARMCPU),
 911         .instance_init = info->initfn,
 912         .class_size = sizeof(ARMCPUClass),
 913         .class_init = info->class_init,
 914     };
 915
 916     type_info.name = g_strdup_printf("%s-" TYPE_ARM_CPU, info->name);
 917     type_register(&type_info);
 918     g_free((void *)type_info.name);
 919 }
 920
 921 static const TypeInfo arm_cpu_type_info = {
 922     .name = TYPE_ARM_CPU,
 923     .parent = TYPE_CPU,
 924     .instance_size = sizeof(ARMCPU),
 925     .instance_init = arm_cpu_initfn,
 926     .instance_finalize = arm_cpu_finalizefn,
 927     .abstract = true,
 928     .class_size = sizeof(ARMCPUClass),
 929     .class_init = arm_cpu_class_init,
 930 };
 931
 932 static void arm_cpu_register_types(void)
 933 {
 934     int i;
 935
 936     type_register_static(&arm_cpu_type_info);
 937     for (i = 0; i < ARRAY_SIZE(arm_cpus); i++) {
 938         cpu_register(&arm_cpus[i]);
 939     }
 940 }
 941
 942 type_init(arm_cpu_register_types)