target-ppc/machine.c

   1 #include "hw/hw.h"
   2 #include "hw/boards.h"
   3 #include "sysemu/kvm.h"
   4 #include "helper_regs.h"
   5
   6 static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)
   7 {
   8     PowerPCCPU *cpu = opaque;
   9     CPUPPCState *env = &cpu->env;
  10     unsigned int i, j;
  11     target_ulong sdr1;
  12     uint32_t fpscr;
  13     target_ulong xer;
  14
  15     for (i = 0; i < 32; i++)
  16         qemu_get_betls(f, &env->gpr[i]);
  17 #if !defined(TARGET_PPC64)
  18     for (i = 0; i < 32; i++)
  19         qemu_get_betls(f, &env->gprh[i]);
  20 #endif
  21     qemu_get_betls(f, &env->lr);
  22     qemu_get_betls(f, &env->ctr);
  23     for (i = 0; i < 8; i++)
  24         qemu_get_be32s(f, &env->crf[i]);
  25     qemu_get_betls(f, &xer);
  26     cpu_write_xer(env, xer);
  27     qemu_get_betls(f, &env->reserve_addr);
  28     qemu_get_betls(f, &env->msr);
  29     for (i = 0; i < 4; i++)
  30         qemu_get_betls(f, &env->tgpr[i]);
  31     for (i = 0; i < 32; i++) {
  32         union {
  33             float64 d;
  34             uint64_t l;
  35         } u;
  36         u.l = qemu_get_be64(f);
  37         env->fpr[i] = u.d;
  38     }
  39     qemu_get_be32s(f, &fpscr);
  40     env->fpscr = fpscr;
  41     qemu_get_sbe32s(f, &env->access_type);
  42 #if defined(TARGET_PPC64)
  43     qemu_get_betls(f, &env->spr[SPR_ASR]);
  44     qemu_get_sbe32s(f, &env->slb_nr);
  45 #endif
  46     qemu_get_betls(f, &sdr1);
  47     for (i = 0; i < 32; i++)
  48         qemu_get_betls(f, &env->sr[i]);
  49     for (i = 0; i < 2; i++)
  50         for (j = 0; j < 8; j++)
  51             qemu_get_betls(f, &env->DBAT[i][j]);
  52     for (i = 0; i < 2; i++)
  53         for (j = 0; j < 8; j++)
  54             qemu_get_betls(f, &env->IBAT[i][j]);
  55     qemu_get_sbe32s(f, &env->nb_tlb);
  56     qemu_get_sbe32s(f, &env->tlb_per_way);
  57     qemu_get_sbe32s(f, &env->nb_ways);
  58     qemu_get_sbe32s(f, &env->last_way);
  59     qemu_get_sbe32s(f, &env->id_tlbs);
  60     qemu_get_sbe32s(f, &env->nb_pids);
  61     if (env->tlb.tlb6) {
  62         // XXX assumes 6xx
  63         for (i = 0; i < env->nb_tlb; i++) {
  64             qemu_get_betls(f, &env->tlb.tlb6[i].pte0);
  65             qemu_get_betls(f, &env->tlb.tlb6[i].pte1);
  66             qemu_get_betls(f, &env->tlb.tlb6[i].EPN);
  67         }
  68     }
  69     for (i = 0; i < 4; i++)
  70         qemu_get_betls(f, &env->pb[i]);
  71     for (i = 0; i < 1024; i++)
  72         qemu_get_betls(f, &env->spr[i]);
  73     if (!env->external_htab) {
  74         ppc_store_sdr1(env, sdr1);
  75     }
  76     qemu_get_be32s(f, &env->vscr);
  77     qemu_get_be64s(f, &env->spe_acc);
  78     qemu_get_be32s(f, &env->spe_fscr);
  79     qemu_get_betls(f, &env->msr_mask);
  80     qemu_get_be32s(f, &env->flags);
  81     qemu_get_sbe32s(f, &env->error_code);
  82     qemu_get_be32s(f, &env->pending_interrupts);
  83     qemu_get_be32s(f, &env->irq_input_state);
  84     for (i = 0; i < POWERPC_EXCP_NB; i++)
  85         qemu_get_betls(f, &env->excp_vectors[i]);
  86     qemu_get_betls(f, &env->excp_prefix);
  87     qemu_get_betls(f, &env->ivor_mask);
  88     qemu_get_betls(f, &env->ivpr_mask);
  89     qemu_get_betls(f, &env->hreset_vector);
  90     qemu_get_betls(f, &env->nip);
  91     qemu_get_betls(f, &env->hflags);
  92     qemu_get_betls(f, &env->hflags_nmsr);
  93     qemu_get_sbe32s(f, &env->mmu_idx);
  94     qemu_get_sbe32(f); /* Discard unused power_mode */
  95
  96     return 0;
  97 }
  98
  99 static int get_avr(QEMUFile *f, void *pv, size_t size)
 100 {
 101     ppc_avr_t *v = pv;
 102
 103     v->u64[0] = qemu_get_be64(f);
 104     v->u64[1] = qemu_get_be64(f);
 105
 106     return 0;
 107 }
 108
 109 static void put_avr(QEMUFile *f, void *pv, size_t size)
 110 {
 111     ppc_avr_t *v = pv;
 112
 113     qemu_put_be64(f, v->u64[0]);
 114     qemu_put_be64(f, v->u64[1]);
 115 }
 116
 117 static const VMStateInfo vmstate_info_avr = {
 118     .name = "avr",
 119     .get  = get_avr,
 120     .put  = put_avr,
 121 };
 122
 123 #define VMSTATE_AVR_ARRAY_V(_f, _s, _n, _v)                       \
 124     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_avr, ppc_avr_t)
 125
 126 #define VMSTATE_AVR_ARRAY(_f, _s, _n)                             \
 127     VMSTATE_AVR_ARRAY_V(_f, _s, _n, 0)
 128
 129 static void cpu_pre_save(void *opaque)
 130 {
 131     PowerPCCPU *cpu = opaque;
 132     CPUPPCState *env = &cpu->env;
 133     int i;
 134
 135     env->spr[SPR_LR] = env->lr;
 136     env->spr[SPR_CTR] = env->ctr;
 137     env->spr[SPR_XER] = env->xer;
 138 #if defined(TARGET_PPC64)
 139     env->spr[SPR_CFAR] = env->cfar;
 140 #endif
 141     env->spr[SPR_BOOKE_SPEFSCR] = env->spe_fscr;
 142
 143     for (i = 0; (i < 4) && (i < env->nb_BATs); i++) {
 144         env->spr[SPR_DBAT0U + 2*i] = env->DBAT[0][i];
 145         env->spr[SPR_DBAT0U + 2*i + 1] = env->DBAT[1][i];
 146         env->spr[SPR_IBAT0U + 2*i] = env->IBAT[0][i];
 147         env->spr[SPR_IBAT0U + 2*i + 1] = env->IBAT[1][i];
 148     }
 149     for (i = 0; (i < 4) && ((i+4) < env->nb_BATs); i++) {
 150         env->spr[SPR_DBAT4U + 2*i] = env->DBAT[0][i+4];
 151         env->spr[SPR_DBAT4U + 2*i + 1] = env->DBAT[1][i+4];
 152         env->spr[SPR_IBAT4U + 2*i] = env->IBAT[0][i+4];
 153         env->spr[SPR_IBAT4U + 2*i + 1] = env->IBAT[1][i+4];
 154     }
 155 }
 156
 157 static int cpu_post_load(void *opaque, int version_id)
 158 {
 159     PowerPCCPU *cpu = opaque;
 160     CPUPPCState *env = &cpu->env;
 161     int i;
 162
 163     env->lr = env->spr[SPR_LR];
 164     env->ctr = env->spr[SPR_CTR];
 165     env->xer = env->spr[SPR_XER];
 166 #if defined(TARGET_PPC64)
 167     env->cfar = env->spr[SPR_CFAR];
 168 #endif
 169     env->spe_fscr = env->spr[SPR_BOOKE_SPEFSCR];
 170
 171     for (i = 0; (i < 4) && (i < env->nb_BATs); i++) {
 172         env->DBAT[0][i] = env->spr[SPR_DBAT0U + 2*i];
 173         env->DBAT[1][i] = env->spr[SPR_DBAT0U + 2*i + 1];
 174         env->IBAT[0][i] = env->spr[SPR_IBAT0U + 2*i];
 175         env->IBAT[1][i] = env->spr[SPR_IBAT0U + 2*i + 1];
 176     }
 177     for (i = 0; (i < 4) && ((i+4) < env->nb_BATs); i++) {
 178         env->DBAT[0][i+4] = env->spr[SPR_DBAT4U + 2*i];
 179         env->DBAT[1][i+4] = env->spr[SPR_DBAT4U + 2*i + 1];
 180         env->IBAT[0][i+4] = env->spr[SPR_IBAT4U + 2*i];
 181         env->IBAT[1][i+4] = env->spr[SPR_IBAT4U + 2*i + 1];
 182     }
 183
 184     if (!env->external_htab) {
 185         /* Restore htab_base and htab_mask variables */
 186         ppc_store_sdr1(env, env->spr[SPR_SDR1]);
 187     }
 188     hreg_compute_hflags(env);
 189     hreg_compute_mem_idx(env);
 190
 191     return 0;
 192 }
 193
 194 static bool fpu_needed(void *opaque)
 195 {
 196     PowerPCCPU *cpu = opaque;
 197
 198     return (cpu->env.insns_flags & PPC_FLOAT);
 199 }
 200
 201 static const VMStateDescription vmstate_fpu = {
 202     .name = "cpu/fpu",
 203     .version_id = 1,
 204     .minimum_version_id = 1,
 205     .minimum_version_id_old = 1,
 206     .fields      = (VMStateField []) {
 207         VMSTATE_FLOAT64_ARRAY(env.fpr, PowerPCCPU, 32),
 208         VMSTATE_UINTTL(env.fpscr, PowerPCCPU),
 209         VMSTATE_END_OF_LIST()
 210     },
 211 };
 212
 213 static bool altivec_needed(void *opaque)
 214 {
 215     PowerPCCPU *cpu = opaque;
 216
 217     return (cpu->env.insns_flags & PPC_ALTIVEC);
 218 }
 219
 220 static const VMStateDescription vmstate_altivec = {
 221     .name = "cpu/altivec",
 222     .version_id = 1,
 223     .minimum_version_id = 1,
 224     .minimum_version_id_old = 1,
 225     .fields      = (VMStateField []) {
 226         VMSTATE_AVR_ARRAY(env.avr, PowerPCCPU, 32),
 227         VMSTATE_UINT32(env.vscr, PowerPCCPU),
 228         VMSTATE_END_OF_LIST()
 229     },
 230 };
 231
 232 static bool vsx_needed(void *opaque)
 233 {
 234     PowerPCCPU *cpu = opaque;
 235
 236     return (cpu->env.insns_flags2 & PPC2_VSX);
 237 }
 238
 239 static const VMStateDescription vmstate_vsx = {
 240     .name = "cpu/vsx",
 241     .version_id = 1,
 242     .minimum_version_id = 1,
 243     .minimum_version_id_old = 1,
 244     .fields      = (VMStateField []) {
 245         VMSTATE_UINT64_ARRAY(env.vsr, PowerPCCPU, 32),
 246         VMSTATE_END_OF_LIST()
 247     },
 248 };
 249
 250 static bool sr_needed(void *opaque)
 251 {
 252 #ifdef TARGET_PPC64
 253     PowerPCCPU *cpu = opaque;
 254
 255     return !(cpu->env.mmu_model & POWERPC_MMU_64);
 256 #else
 257     return true;
 258 #endif
 259 }
 260
 261 static const VMStateDescription vmstate_sr = {
 262     .name = "cpu/sr",
 263     .version_id = 1,
 264     .minimum_version_id = 1,
 265     .minimum_version_id_old = 1,
 266     .fields      = (VMStateField []) {
 267         VMSTATE_UINTTL_ARRAY(env.sr, PowerPCCPU, 32),
 268         VMSTATE_END_OF_LIST()
 269     },
 270 };
 271
 272 #ifdef TARGET_PPC64
 273 static int get_slbe(QEMUFile *f, void *pv, size_t size)
 274 {
 275     ppc_slb_t *v = pv;
 276
 277     v->esid = qemu_get_be64(f);
 278     v->vsid = qemu_get_be64(f);
 279
 280     return 0;
 281 }
 282
 283 static void put_slbe(QEMUFile *f, void *pv, size_t size)
 284 {
 285     ppc_slb_t *v = pv;
 286
 287     qemu_put_be64(f, v->esid);
 288     qemu_put_be64(f, v->vsid);
 289 }
 290
 291 static const VMStateInfo vmstate_info_slbe = {
 292     .name = "slbe",
 293     .get  = get_slbe,
 294     .put  = put_slbe,
 295 };
 296
 297 #define VMSTATE_SLB_ARRAY_V(_f, _s, _n, _v)                       \
 298     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_slbe, ppc_slb_t)
 299
 300 #define VMSTATE_SLB_ARRAY(_f, _s, _n)                             \
 301     VMSTATE_SLB_ARRAY_V(_f, _s, _n, 0)
 302
 303 static bool slb_needed(void *opaque)
 304 {
 305     PowerPCCPU *cpu = opaque;
 306
 307     /* We don't support any of the old segment table based 64-bit CPUs */
 308     return (cpu->env.mmu_model & POWERPC_MMU_64);
 309 }
 310
 311 static const VMStateDescription vmstate_slb = {
 312     .name = "cpu/slb",
 313     .version_id = 1,
 314     .minimum_version_id = 1,
 315     .minimum_version_id_old = 1,
 316     .fields      = (VMStateField []) {
 317         VMSTATE_INT32_EQUAL(env.slb_nr, PowerPCCPU),
 318         VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES),
 319         VMSTATE_END_OF_LIST()
 320     }
 321 };
 322 #endif /* TARGET_PPC64 */
 323
 324 static const VMStateDescription vmstate_tlb6xx_entry = {
 325     .name = "cpu/tlb6xx_entry",
 326     .version_id = 1,
 327     .minimum_version_id = 1,
 328     .minimum_version_id_old = 1,
 329     .fields      = (VMStateField []) {
 330         VMSTATE_UINTTL(pte0, ppc6xx_tlb_t),
 331         VMSTATE_UINTTL(pte1, ppc6xx_tlb_t),
 332         VMSTATE_UINTTL(EPN, ppc6xx_tlb_t),
 333         VMSTATE_END_OF_LIST()
 334     },
 335 };
 336
 337 static bool tlb6xx_needed(void *opaque)
 338 {
 339     PowerPCCPU *cpu = opaque;
 340     CPUPPCState *env = &cpu->env;
 341
 342     return env->nb_tlb && (env->tlb_type == TLB_6XX);
 343 }
 344
 345 static const VMStateDescription vmstate_tlb6xx = {
 346     .name = "cpu/tlb6xx",
 347     .version_id = 1,
 348     .minimum_version_id = 1,
 349     .minimum_version_id_old = 1,
 350     .fields      = (VMStateField []) {
 351         VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
 352         VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlb6, PowerPCCPU,
 353                                             env.nb_tlb,
 354                                             vmstate_tlb6xx_entry,
 355                                             ppc6xx_tlb_t),
 356         VMSTATE_UINTTL_ARRAY(env.tgpr, PowerPCCPU, 4),
 357         VMSTATE_END_OF_LIST()
 358     }
 359 };
 360
 361 static const VMStateDescription vmstate_tlbemb_entry = {
 362     .name = "cpu/tlbemb_entry",
 363     .version_id = 1,
 364     .minimum_version_id = 1,
 365     .minimum_version_id_old = 1,
 366     .fields      = (VMStateField []) {
 367         VMSTATE_UINT64(RPN, ppcemb_tlb_t),
 368         VMSTATE_UINTTL(EPN, ppcemb_tlb_t),
 369         VMSTATE_UINTTL(PID, ppcemb_tlb_t),
 370         VMSTATE_UINTTL(size, ppcemb_tlb_t),
 371         VMSTATE_UINT32(prot, ppcemb_tlb_t),
 372         VMSTATE_UINT32(attr, ppcemb_tlb_t),
 373         VMSTATE_END_OF_LIST()
 374     },
 375 };
 376
 377 static bool tlbemb_needed(void *opaque)
 378 {
 379     PowerPCCPU *cpu = opaque;
 380     CPUPPCState *env = &cpu->env;
 381
 382     return env->nb_tlb && (env->tlb_type == TLB_EMB);
 383 }
 384
 385 static bool pbr403_needed(void *opaque)
 386 {
 387     PowerPCCPU *cpu = opaque;
 388     uint32_t pvr = cpu->env.spr[SPR_PVR];
 389
 390     return (pvr & 0xffff0000) == 0x00200000;
 391 }
 392
 393 static const VMStateDescription vmstate_pbr403 = {
 394     .name = "cpu/pbr403",
 395     .version_id = 1,
 396     .minimum_version_id = 1,
 397     .minimum_version_id_old = 1,
 398     .fields      = (VMStateField []) {
 399         VMSTATE_UINTTL_ARRAY(env.pb, PowerPCCPU, 4),
 400         VMSTATE_END_OF_LIST()
 401     },
 402 };
 403
 404 static const VMStateDescription vmstate_tlbemb = {
 405     .name = "cpu/tlb6xx",
 406     .version_id = 1,
 407     .minimum_version_id = 1,
 408     .minimum_version_id_old = 1,
 409     .fields      = (VMStateField []) {
 410         VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
 411         VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbe, PowerPCCPU,
 412                                             env.nb_tlb,
 413                                             vmstate_tlbemb_entry,
 414                                             ppcemb_tlb_t),
 415         /* 403 protection registers */
 416         VMSTATE_END_OF_LIST()
 417     },
 418     .subsections = (VMStateSubsection []) {
 419         {
 420             .vmsd = &vmstate_pbr403,
 421             .needed = pbr403_needed,
 422         } , {
 423             /* empty */
 424         }
 425     }
 426 };
 427
 428 static const VMStateDescription vmstate_tlbmas_entry = {
 429     .name = "cpu/tlbmas_entry",
 430     .version_id = 1,
 431     .minimum_version_id = 1,
 432     .minimum_version_id_old = 1,
 433     .fields      = (VMStateField []) {
 434         VMSTATE_UINT32(mas8, ppcmas_tlb_t),
 435         VMSTATE_UINT32(mas1, ppcmas_tlb_t),
 436         VMSTATE_UINT64(mas2, ppcmas_tlb_t),
 437         VMSTATE_UINT64(mas7_3, ppcmas_tlb_t),
 438         VMSTATE_END_OF_LIST()
 439     },
 440 };
 441
 442 static bool tlbmas_needed(void *opaque)
 443 {
 444     PowerPCCPU *cpu = opaque;
 445     CPUPPCState *env = &cpu->env;
 446
 447     return env->nb_tlb && (env->tlb_type == TLB_MAS);
 448 }
 449
 450 static const VMStateDescription vmstate_tlbmas = {
 451     .name = "cpu/tlbmas",
 452     .version_id = 1,
 453     .minimum_version_id = 1,
 454     .minimum_version_id_old = 1,
 455     .fields      = (VMStateField []) {
 456         VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
 457         VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbm, PowerPCCPU,
 458                                             env.nb_tlb,
 459                                             vmstate_tlbmas_entry,
 460                                             ppcmas_tlb_t),
 461         VMSTATE_END_OF_LIST()
 462     }
 463 };
 464
 465 const VMStateDescription vmstate_ppc_cpu = {
 466     .name = "cpu",
 467     .version_id = 5,
 468     .minimum_version_id = 5,
 469     .minimum_version_id_old = 4,
 470     .load_state_old = cpu_load_old,
 471     .pre_save = cpu_pre_save,
 472     .post_load = cpu_post_load,
 473     .fields      = (VMStateField []) {
 474         /* Verify we haven't changed the pvr */
 475         VMSTATE_UINTTL_EQUAL(env.spr[SPR_PVR], PowerPCCPU),
 476
 477         /* User mode architected state */
 478         VMSTATE_UINTTL_ARRAY(env.gpr, PowerPCCPU, 32),
 479 #if !defined(TARGET_PPC64)
 480         VMSTATE_UINTTL_ARRAY(env.gprh, PowerPCCPU, 32),
 481 #endif
 482         VMSTATE_UINT32_ARRAY(env.crf, PowerPCCPU, 8),
 483         VMSTATE_UINTTL(env.nip, PowerPCCPU),
 484
 485         /* SPRs */
 486         VMSTATE_UINTTL_ARRAY(env.spr, PowerPCCPU, 1024),
 487         VMSTATE_UINT64(env.spe_acc, PowerPCCPU),
 488
 489         /* Reservation */
 490         VMSTATE_UINTTL(env.reserve_addr, PowerPCCPU),
 491
 492         /* Supervisor mode architected state */
 493         VMSTATE_UINTTL(env.msr, PowerPCCPU),
 494
 495         /* Internal state */
 496         VMSTATE_UINTTL(env.hflags_nmsr, PowerPCCPU),
 497         /* FIXME: access_type? */
 498
 499         /* Sanity checking */
 500         VMSTATE_UINTTL_EQUAL(env.msr_mask, PowerPCCPU),
 501         VMSTATE_UINT64_EQUAL(env.insns_flags, PowerPCCPU),
 502         VMSTATE_UINT64_EQUAL(env.insns_flags2, PowerPCCPU),
 503         VMSTATE_UINT32_EQUAL(env.nb_BATs, PowerPCCPU),
 504         VMSTATE_END_OF_LIST()
 505     },
 506     .subsections = (VMStateSubsection []) {
 507         {
 508             .vmsd = &vmstate_fpu,
 509             .needed = fpu_needed,
 510         } , {
 511             .vmsd = &vmstate_altivec,
 512             .needed = altivec_needed,
 513         } , {
 514             .vmsd = &vmstate_vsx,
 515             .needed = vsx_needed,
 516         } , {
 517             .vmsd = &vmstate_sr,
 518             .needed = sr_needed,
 519         } , {
 520 #ifdef TARGET_PPC64
 521             .vmsd = &vmstate_slb,
 522             .needed = slb_needed,
 523         } , {
 524 #endif /* TARGET_PPC64 */
 525             .vmsd = &vmstate_tlb6xx,
 526             .needed = tlb6xx_needed,
 527         } , {
 528             .vmsd = &vmstate_tlbemb,
 529             .needed = tlbemb_needed,
 530         } , {
 531             .vmsd = &vmstate_tlbmas,
 532             .needed = tlbmas_needed,
 533         } , {
 534             /* empty */
 535         }
 536     }
 537 };