target/ppc/machine.c

   1 #include "qemu/osdep.h"
   2 #include "cpu.h"
   3 #include "exec/exec-all.h"
   4 #include "sysemu/kvm.h"
   5 #include "helper_regs.h"
   6 #include "mmu-hash64.h"
   7 #include "migration/cpu.h"
   8 #include "qapi/error.h"
   9 #include "qemu/main-loop.h"
  10 #include "kvm_ppc.h"
  11 #include "exec/helper-proto.h"
  12
  13 static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)
  14 {
  15     PowerPCCPU *cpu = opaque;
  16     CPUPPCState *env = &cpu->env;
  17     unsigned int i, j;
  18     target_ulong sdr1;
  19     uint32_t fpscr, vscr;
  20 #if defined(TARGET_PPC64)
  21     int32_t slb_nr;
  22 #endif
  23     target_ulong xer;
  24
  25     for (i = 0; i < 32; i++) {
  26         qemu_get_betls(f, &env->gpr[i]);
  27     }
  28 #if !defined(TARGET_PPC64)
  29     for (i = 0; i < 32; i++) {
  30         qemu_get_betls(f, &env->gprh[i]);
  31     }
  32 #endif
  33     qemu_get_betls(f, &env->lr);
  34     qemu_get_betls(f, &env->ctr);
  35     for (i = 0; i < 8; i++) {
  36         qemu_get_be32s(f, &env->crf[i]);
  37     }
  38     qemu_get_betls(f, &xer);
  39     cpu_write_xer(env, xer);
  40     qemu_get_betls(f, &env->reserve_addr);
  41     qemu_get_betls(f, &env->msr);
  42     for (i = 0; i < 4; i++) {
  43         qemu_get_betls(f, &env->tgpr[i]);
  44     }
  45     for (i = 0; i < 32; i++) {
  46         union {
  47             float64 d;
  48             uint64_t l;
  49         } u;
  50         u.l = qemu_get_be64(f);
  51         *cpu_fpr_ptr(env, i) = u.d;
  52     }
  53     qemu_get_be32s(f, &fpscr);
  54     env->fpscr = fpscr;
  55     qemu_get_sbe32s(f, &env->access_type);
  56 #if defined(TARGET_PPC64)
  57     qemu_get_betls(f, &env->spr[SPR_ASR]);
  58     qemu_get_sbe32s(f, &slb_nr);
  59 #endif
  60     qemu_get_betls(f, &sdr1);
  61     for (i = 0; i < 32; i++) {
  62         qemu_get_betls(f, &env->sr[i]);
  63     }
  64     for (i = 0; i < 2; i++) {
  65         for (j = 0; j < 8; j++) {
  66             qemu_get_betls(f, &env->DBAT[i][j]);
  67         }
  68     }
  69     for (i = 0; i < 2; i++) {
  70         for (j = 0; j < 8; j++) {
  71             qemu_get_betls(f, &env->IBAT[i][j]);
  72         }
  73     }
  74     qemu_get_sbe32s(f, &env->nb_tlb);
  75     qemu_get_sbe32s(f, &env->tlb_per_way);
  76     qemu_get_sbe32s(f, &env->nb_ways);
  77     qemu_get_sbe32s(f, &env->last_way);
  78     qemu_get_sbe32s(f, &env->id_tlbs);
  79     qemu_get_sbe32s(f, &env->nb_pids);
  80     if (env->tlb.tlb6) {
  81         /* XXX assumes 6xx */
  82         for (i = 0; i < env->nb_tlb; i++) {
  83             qemu_get_betls(f, &env->tlb.tlb6[i].pte0);
  84             qemu_get_betls(f, &env->tlb.tlb6[i].pte1);
  85             qemu_get_betls(f, &env->tlb.tlb6[i].EPN);
  86         }
  87     }
  88     for (i = 0; i < 4; i++) {
  89         qemu_get_betls(f, &env->pb[i]);
  90     }
  91     for (i = 0; i < 1024; i++) {
  92         qemu_get_betls(f, &env->spr[i]);
  93     }
  94     if (!cpu->vhyp) {
  95         ppc_store_sdr1(env, sdr1);
  96     }
  97     qemu_get_be32s(f, &vscr);
  98     helper_mtvscr(env, vscr);
  99     qemu_get_be64s(f, &env->spe_acc);
 100     qemu_get_be32s(f, &env->spe_fscr);
 101     qemu_get_betls(f, &env->msr_mask);
 102     qemu_get_be32s(f, &env->flags);
 103     qemu_get_sbe32s(f, &env->error_code);
 104     qemu_get_be32s(f, &env->pending_interrupts);
 105     qemu_get_be32s(f, &env->irq_input_state);
 106     for (i = 0; i < POWERPC_EXCP_NB; i++) {
 107         qemu_get_betls(f, &env->excp_vectors[i]);
 108     }
 109     qemu_get_betls(f, &env->excp_prefix);
 110     qemu_get_betls(f, &env->ivor_mask);
 111     qemu_get_betls(f, &env->ivpr_mask);
 112     qemu_get_betls(f, &env->hreset_vector);
 113     qemu_get_betls(f, &env->nip);
 114     qemu_get_betls(f, &env->hflags);
 115     qemu_get_betls(f, &env->hflags_nmsr);
 116     qemu_get_sbe32(f); /* Discard unused mmu_idx */
 117     qemu_get_sbe32(f); /* Discard unused power_mode */
 118
 119     /* Recompute mmu indices */
 120     hreg_compute_mem_idx(env);
 121
 122     return 0;
 123 }
 124
 125 static int get_avr(QEMUFile *f, void *pv, size_t size,
 126                    const VMStateField *field)
 127 {
 128     ppc_avr_t *v = pv;
 129
 130     v->u64[0] = qemu_get_be64(f);
 131     v->u64[1] = qemu_get_be64(f);
 132
 133     return 0;
 134 }
 135
 136 static int put_avr(QEMUFile *f, void *pv, size_t size,
 137                    const VMStateField *field, JSONWriter *vmdesc)
 138 {
 139     ppc_avr_t *v = pv;
 140
 141     qemu_put_be64(f, v->u64[0]);
 142     qemu_put_be64(f, v->u64[1]);
 143     return 0;
 144 }
 145
 146 static const VMStateInfo vmstate_info_avr = {
 147     .name = "avr",
 148     .get  = get_avr,
 149     .put  = put_avr,
 150 };
 151
 152 #define VMSTATE_AVR_ARRAY_V(_f, _s, _n, _v)                       \
 153     VMSTATE_SUB_ARRAY(_f, _s, 32, _n, _v, vmstate_info_avr, ppc_avr_t)
 154
 155 #define VMSTATE_AVR_ARRAY(_f, _s, _n)                             \
 156     VMSTATE_AVR_ARRAY_V(_f, _s, _n, 0)
 157
 158 static int get_fpr(QEMUFile *f, void *pv, size_t size,
 159                    const VMStateField *field)
 160 {
 161     ppc_vsr_t *v = pv;
 162
 163     v->VsrD(0) = qemu_get_be64(f);
 164
 165     return 0;
 166 }
 167
 168 static int put_fpr(QEMUFile *f, void *pv, size_t size,
 169                    const VMStateField *field, JSONWriter *vmdesc)
 170 {
 171     ppc_vsr_t *v = pv;
 172
 173     qemu_put_be64(f, v->VsrD(0));
 174     return 0;
 175 }
 176
 177 static const VMStateInfo vmstate_info_fpr = {
 178     .name = "fpr",
 179     .get  = get_fpr,
 180     .put  = put_fpr,
 181 };
 182
 183 #define VMSTATE_FPR_ARRAY_V(_f, _s, _n, _v)                       \
 184     VMSTATE_SUB_ARRAY(_f, _s, 0, _n, _v, vmstate_info_fpr, ppc_vsr_t)
 185
 186 #define VMSTATE_FPR_ARRAY(_f, _s, _n)                             \
 187     VMSTATE_FPR_ARRAY_V(_f, _s, _n, 0)
 188
 189 static int get_vsr(QEMUFile *f, void *pv, size_t size,
 190                    const VMStateField *field)
 191 {
 192     ppc_vsr_t *v = pv;
 193
 194     v->VsrD(1) = qemu_get_be64(f);
 195
 196     return 0;
 197 }
 198
 199 static int put_vsr(QEMUFile *f, void *pv, size_t size,
 200                    const VMStateField *field, JSONWriter *vmdesc)
 201 {
 202     ppc_vsr_t *v = pv;
 203
 204     qemu_put_be64(f, v->VsrD(1));
 205     return 0;
 206 }
 207
 208 static const VMStateInfo vmstate_info_vsr = {
 209     .name = "vsr",
 210     .get  = get_vsr,
 211     .put  = put_vsr,
 212 };
 213
 214 #define VMSTATE_VSR_ARRAY_V(_f, _s, _n, _v)                       \
 215     VMSTATE_SUB_ARRAY(_f, _s, 0, _n, _v, vmstate_info_vsr, ppc_vsr_t)
 216
 217 #define VMSTATE_VSR_ARRAY(_f, _s, _n)                             \
 218     VMSTATE_VSR_ARRAY_V(_f, _s, _n, 0)
 219
 220 static bool cpu_pre_2_8_migration(void *opaque, int version_id)
 221 {
 222     PowerPCCPU *cpu = opaque;
 223
 224     return cpu->pre_2_8_migration;
 225 }
 226
 227 #if defined(TARGET_PPC64)
 228 static bool cpu_pre_3_0_migration(void *opaque, int version_id)
 229 {
 230     PowerPCCPU *cpu = opaque;
 231
 232     return cpu->pre_3_0_migration;
 233 }
 234 #endif
 235
 236 static int cpu_pre_save(void *opaque)
 237 {
 238     PowerPCCPU *cpu = opaque;
 239     CPUPPCState *env = &cpu->env;
 240     int i;
 241     uint64_t insns_compat_mask =
 242         PPC_INSNS_BASE | PPC_ISEL | PPC_STRING | PPC_MFTB
 243         | PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES
 244         | PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE | PPC_FLOAT_FRSQRTES
 245         | PPC_FLOAT_STFIWX | PPC_FLOAT_EXT
 246         | PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZ
 247         | PPC_MEM_SYNC | PPC_MEM_EIEIO | PPC_MEM_TLBIE | PPC_MEM_TLBSYNC
 248         | PPC_64B | PPC_64BX | PPC_ALTIVEC
 249         | PPC_SEGMENT_64B | PPC_SLBI | PPC_POPCNTB | PPC_POPCNTWD;
 250     uint64_t insns_compat_mask2 = PPC2_VSX | PPC2_VSX207 | PPC2_DFP | PPC2_DBRX
 251         | PPC2_PERM_ISA206 | PPC2_DIVE_ISA206
 252         | PPC2_ATOMIC_ISA206 | PPC2_FP_CVT_ISA206
 253         | PPC2_FP_TST_ISA206 | PPC2_BCTAR_ISA207
 254         | PPC2_LSQ_ISA207 | PPC2_ALTIVEC_207
 255         | PPC2_ISA205 | PPC2_ISA207S | PPC2_FP_CVT_S64 | PPC2_TM;
 256
 257     env->spr[SPR_LR] = env->lr;
 258     env->spr[SPR_CTR] = env->ctr;
 259     env->spr[SPR_XER] = cpu_read_xer(env);
 260 #if defined(TARGET_PPC64)
 261     env->spr[SPR_CFAR] = env->cfar;
 262 #endif
 263     env->spr[SPR_BOOKE_SPEFSCR] = env->spe_fscr;
 264
 265     for (i = 0; (i < 4) && (i < env->nb_BATs); i++) {
 266         env->spr[SPR_DBAT0U + 2 * i] = env->DBAT[0][i];
 267         env->spr[SPR_DBAT0U + 2 * i + 1] = env->DBAT[1][i];
 268         env->spr[SPR_IBAT0U + 2 * i] = env->IBAT[0][i];
 269         env->spr[SPR_IBAT0U + 2 * i + 1] = env->IBAT[1][i];
 270     }
 271     for (i = 0; (i < 4) && ((i + 4) < env->nb_BATs); i++) {
 272         env->spr[SPR_DBAT4U + 2 * i] = env->DBAT[0][i + 4];
 273         env->spr[SPR_DBAT4U + 2 * i + 1] = env->DBAT[1][i + 4];
 274         env->spr[SPR_IBAT4U + 2 * i] = env->IBAT[0][i + 4];
 275         env->spr[SPR_IBAT4U + 2 * i + 1] = env->IBAT[1][i + 4];
 276     }
 277
 278     /* Hacks for migration compatibility between 2.6, 2.7 & 2.8 */
 279     if (cpu->pre_2_8_migration) {
 280         /*
 281          * Mask out bits that got added to msr_mask since the versions
 282          * which stupidly included it in the migration stream.
 283          */
 284         target_ulong metamask = 0
 285 #if defined(TARGET_PPC64)
 286             | (1ULL << MSR_TS0)
 287             | (1ULL << MSR_TS1)
 288 #endif
 289             ;
 290         cpu->mig_msr_mask = env->msr_mask & ~metamask;
 291         cpu->mig_insns_flags = env->insns_flags & insns_compat_mask;
 292         /*
 293          * CPU models supported by old machines all have
 294          * PPC_MEM_TLBIE, so we set it unconditionally to allow
 295          * backward migration from a POWER9 host to a POWER8 host.
 296          */
 297         cpu->mig_insns_flags |= PPC_MEM_TLBIE;
 298         cpu->mig_insns_flags2 = env->insns_flags2 & insns_compat_mask2;
 299         cpu->mig_nb_BATs = env->nb_BATs;
 300     }
 301     if (cpu->pre_3_0_migration) {
 302         if (cpu->hash64_opts) {
 303             cpu->mig_slb_nr = cpu->hash64_opts->slb_size;
 304         }
 305     }
 306
 307     return 0;
 308 }
 309
 310 /*
 311  * Determine if a given PVR is a "close enough" match to the CPU
 312  * object.  For TCG and KVM PR it would probably be sufficient to
 313  * require an exact PVR match.  However for KVM HV the user is
 314  * restricted to a PVR exactly matching the host CPU.  The correct way
 315  * to handle this is to put the guest into an architected
 316  * compatibility mode.  However, to allow a more forgiving transition
 317  * and migration from before this was widely done, we allow migration
 318  * between sufficiently similar PVRs, as determined by the CPU class's
 319  * pvr_match() hook.
 320  */
 321 static bool pvr_match(PowerPCCPU *cpu, uint32_t pvr)
 322 {
 323     PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
 324
 325     if (pvr == pcc->pvr) {
 326         return true;
 327     }
 328     return pcc->pvr_match(pcc, pvr);
 329 }
 330
 331 static int cpu_post_load(void *opaque, int version_id)
 332 {
 333     PowerPCCPU *cpu = opaque;
 334     CPUPPCState *env = &cpu->env;
 335     int i;
 336     target_ulong msr;
 337
 338     /*
 339      * If we're operating in compat mode, we should be ok as long as
 340      * the destination supports the same compatibility mode.
 341      *
 342      * Otherwise, however, we require that the destination has exactly
 343      * the same CPU model as the source.
 344      */
 345
 346 #if defined(TARGET_PPC64)
 347     if (cpu->compat_pvr) {
 348         uint32_t compat_pvr = cpu->compat_pvr;
 349         Error *local_err = NULL;
 350         int ret;
 351
 352         cpu->compat_pvr = 0;
 353         ret = ppc_set_compat(cpu, compat_pvr, &local_err);
 354         if (ret < 0) {
 355             error_report_err(local_err);
 356             return ret;
 357         }
 358     } else
 359 #endif
 360     {
 361         if (!pvr_match(cpu, env->spr[SPR_PVR])) {
 362             return -EINVAL;
 363         }
 364     }
 365
 366     /*
 367      * If we're running with KVM HV, there is a chance that the guest
 368      * is running with KVM HV and its kernel does not have the
 369      * capability of dealing with a different PVR other than this
 370      * exact host PVR in KVM_SET_SREGS. If that happens, the
 371      * guest freezes after migration.
 372      *
 373      * The function kvmppc_pvr_workaround_required does this verification
 374      * by first checking if the kernel has the cap, returning true immediately
 375      * if that is the case. Otherwise, it checks if we're running in KVM PR.
 376      * If the guest kernel does not have the cap and we're not running KVM-PR
 377      * (so, it is running KVM-HV), we need to ensure that KVM_SET_SREGS will
 378      * receive the PVR it expects as a workaround.
 379      *
 380      */
 381     if (kvmppc_pvr_workaround_required(cpu)) {
 382         env->spr[SPR_PVR] = env->spr_cb[SPR_PVR].default_value;
 383     }
 384
 385     env->lr = env->spr[SPR_LR];
 386     env->ctr = env->spr[SPR_CTR];
 387     cpu_write_xer(env, env->spr[SPR_XER]);
 388 #if defined(TARGET_PPC64)
 389     env->cfar = env->spr[SPR_CFAR];
 390 #endif
 391     env->spe_fscr = env->spr[SPR_BOOKE_SPEFSCR];
 392
 393     for (i = 0; (i < 4) && (i < env->nb_BATs); i++) {
 394         env->DBAT[0][i] = env->spr[SPR_DBAT0U + 2 * i];
 395         env->DBAT[1][i] = env->spr[SPR_DBAT0U + 2 * i + 1];
 396         env->IBAT[0][i] = env->spr[SPR_IBAT0U + 2 * i];
 397         env->IBAT[1][i] = env->spr[SPR_IBAT0U + 2 * i + 1];
 398     }
 399     for (i = 0; (i < 4) && ((i + 4) < env->nb_BATs); i++) {
 400         env->DBAT[0][i + 4] = env->spr[SPR_DBAT4U + 2 * i];
 401         env->DBAT[1][i + 4] = env->spr[SPR_DBAT4U + 2 * i + 1];
 402         env->IBAT[0][i + 4] = env->spr[SPR_IBAT4U + 2 * i];
 403         env->IBAT[1][i + 4] = env->spr[SPR_IBAT4U + 2 * i + 1];
 404     }
 405
 406     if (!cpu->vhyp) {
 407         ppc_store_sdr1(env, env->spr[SPR_SDR1]);
 408     }
 409
 410     /*
 411      * Invalidate all supported msr bits except MSR_TGPR/MSR_HVB
 412      * before restoring
 413      */
 414     msr = env->msr;
 415     env->msr ^= env->msr_mask & ~((1ULL << MSR_TGPR) | MSR_HVB);
 416     ppc_store_msr(env, msr);
 417
 418     hreg_compute_mem_idx(env);
 419
 420     return 0;
 421 }
 422
 423 static bool fpu_needed(void *opaque)
 424 {
 425     PowerPCCPU *cpu = opaque;
 426
 427     return cpu->env.insns_flags & PPC_FLOAT;
 428 }
 429
 430 static const VMStateDescription vmstate_fpu = {
 431     .name = "cpu/fpu",
 432     .version_id = 1,
 433     .minimum_version_id = 1,
 434     .needed = fpu_needed,
 435     .fields = (VMStateField[]) {
 436         VMSTATE_FPR_ARRAY(env.vsr, PowerPCCPU, 32),
 437         VMSTATE_UINTTL(env.fpscr, PowerPCCPU),
 438         VMSTATE_END_OF_LIST()
 439     },
 440 };
 441
 442 static bool altivec_needed(void *opaque)
 443 {
 444     PowerPCCPU *cpu = opaque;
 445
 446     return cpu->env.insns_flags & PPC_ALTIVEC;
 447 }
 448
 449 static int get_vscr(QEMUFile *f, void *opaque, size_t size,
 450                     const VMStateField *field)
 451 {
 452     PowerPCCPU *cpu = opaque;
 453     helper_mtvscr(&cpu->env, qemu_get_be32(f));
 454     return 0;
 455 }
 456
 457 static int put_vscr(QEMUFile *f, void *opaque, size_t size,
 458                     const VMStateField *field, JSONWriter *vmdesc)
 459 {
 460     PowerPCCPU *cpu = opaque;
 461     qemu_put_be32(f, helper_mfvscr(&cpu->env));
 462     return 0;
 463 }
 464
 465 static const VMStateInfo vmstate_vscr = {
 466     .name = "cpu/altivec/vscr",
 467     .get = get_vscr,
 468     .put = put_vscr,
 469 };
 470
 471 static const VMStateDescription vmstate_altivec = {
 472     .name = "cpu/altivec",
 473     .version_id = 1,
 474     .minimum_version_id = 1,
 475     .needed = altivec_needed,
 476     .fields = (VMStateField[]) {
 477         VMSTATE_AVR_ARRAY(env.vsr, PowerPCCPU, 32),
 478         /*
 479          * Save the architecture value of the vscr, not the internally
 480          * expanded version.  Since this architecture value does not
 481          * exist in memory to be stored, this requires a but of hoop
 482          * jumping.  We want OFFSET=0 so that we effectively pass CPU
 483          * to the helper functions.
 484          */
 485         {
 486             .name = "vscr",
 487             .version_id = 0,
 488             .size = sizeof(uint32_t),
 489             .info = &vmstate_vscr,
 490             .flags = VMS_SINGLE,
 491             .offset = 0
 492         },
 493         VMSTATE_END_OF_LIST()
 494     },
 495 };
 496
 497 static bool vsx_needed(void *opaque)
 498 {
 499     PowerPCCPU *cpu = opaque;
 500
 501     return cpu->env.insns_flags2 & PPC2_VSX;
 502 }
 503
 504 static const VMStateDescription vmstate_vsx = {
 505     .name = "cpu/vsx",
 506     .version_id = 1,
 507     .minimum_version_id = 1,
 508     .needed = vsx_needed,
 509     .fields = (VMStateField[]) {
 510         VMSTATE_VSR_ARRAY(env.vsr, PowerPCCPU, 32),
 511         VMSTATE_END_OF_LIST()
 512     },
 513 };
 514
 515 #ifdef TARGET_PPC64
 516 /* Transactional memory state */
 517 static bool tm_needed(void *opaque)
 518 {
 519     PowerPCCPU *cpu = opaque;
 520     CPUPPCState *env = &cpu->env;
 521     return msr_ts;
 522 }
 523
 524 static const VMStateDescription vmstate_tm = {
 525     .name = "cpu/tm",
 526     .version_id = 1,
 527     .minimum_version_id = 1,
 528     .minimum_version_id_old = 1,
 529     .needed = tm_needed,
 530     .fields      = (VMStateField []) {
 531         VMSTATE_UINTTL_ARRAY(env.tm_gpr, PowerPCCPU, 32),
 532         VMSTATE_AVR_ARRAY(env.tm_vsr, PowerPCCPU, 64),
 533         VMSTATE_UINT64(env.tm_cr, PowerPCCPU),
 534         VMSTATE_UINT64(env.tm_lr, PowerPCCPU),
 535         VMSTATE_UINT64(env.tm_ctr, PowerPCCPU),
 536         VMSTATE_UINT64(env.tm_fpscr, PowerPCCPU),
 537         VMSTATE_UINT64(env.tm_amr, PowerPCCPU),
 538         VMSTATE_UINT64(env.tm_ppr, PowerPCCPU),
 539         VMSTATE_UINT64(env.tm_vrsave, PowerPCCPU),
 540         VMSTATE_UINT32(env.tm_vscr, PowerPCCPU),
 541         VMSTATE_UINT64(env.tm_dscr, PowerPCCPU),
 542         VMSTATE_UINT64(env.tm_tar, PowerPCCPU),
 543         VMSTATE_END_OF_LIST()
 544     },
 545 };
 546 #endif
 547
 548 static bool sr_needed(void *opaque)
 549 {
 550 #ifdef TARGET_PPC64
 551     PowerPCCPU *cpu = opaque;
 552
 553     return !mmu_is_64bit(cpu->env.mmu_model);
 554 #else
 555     return true;
 556 #endif
 557 }
 558
 559 static const VMStateDescription vmstate_sr = {
 560     .name = "cpu/sr",
 561     .version_id = 1,
 562     .minimum_version_id = 1,
 563     .needed = sr_needed,
 564     .fields = (VMStateField[]) {
 565         VMSTATE_UINTTL_ARRAY(env.sr, PowerPCCPU, 32),
 566         VMSTATE_END_OF_LIST()
 567     },
 568 };
 569
 570 #ifdef TARGET_PPC64
 571 static int get_slbe(QEMUFile *f, void *pv, size_t size,
 572                     const VMStateField *field)
 573 {
 574     ppc_slb_t *v = pv;
 575
 576     v->esid = qemu_get_be64(f);
 577     v->vsid = qemu_get_be64(f);
 578
 579     return 0;
 580 }
 581
 582 static int put_slbe(QEMUFile *f, void *pv, size_t size,
 583                     const VMStateField *field, JSONWriter *vmdesc)
 584 {
 585     ppc_slb_t *v = pv;
 586
 587     qemu_put_be64(f, v->esid);
 588     qemu_put_be64(f, v->vsid);
 589     return 0;
 590 }
 591
 592 static const VMStateInfo vmstate_info_slbe = {
 593     .name = "slbe",
 594     .get  = get_slbe,
 595     .put  = put_slbe,
 596 };
 597
 598 #define VMSTATE_SLB_ARRAY_V(_f, _s, _n, _v)                       \
 599     VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_slbe, ppc_slb_t)
 600
 601 #define VMSTATE_SLB_ARRAY(_f, _s, _n)                             \
 602     VMSTATE_SLB_ARRAY_V(_f, _s, _n, 0)
 603
 604 static bool slb_needed(void *opaque)
 605 {
 606     PowerPCCPU *cpu = opaque;
 607
 608     /* We don't support any of the old segment table based 64-bit CPUs */
 609     return mmu_is_64bit(cpu->env.mmu_model);
 610 }
 611
 612 static int slb_post_load(void *opaque, int version_id)
 613 {
 614     PowerPCCPU *cpu = opaque;
 615     CPUPPCState *env = &cpu->env;
 616     int i;
 617
 618     /*
 619      * We've pulled in the raw esid and vsid values from the migration
 620      * stream, but we need to recompute the page size pointers
 621      */
 622     for (i = 0; i < cpu->hash64_opts->slb_size; i++) {
 623         if (ppc_store_slb(cpu, i, env->slb[i].esid, env->slb[i].vsid) < 0) {
 624             /* Migration source had bad values in its SLB */
 625             return -1;
 626         }
 627     }
 628
 629     return 0;
 630 }
 631
 632 static const VMStateDescription vmstate_slb = {
 633     .name = "cpu/slb",
 634     .version_id = 1,
 635     .minimum_version_id = 1,
 636     .needed = slb_needed,
 637     .post_load = slb_post_load,
 638     .fields = (VMStateField[]) {
 639         VMSTATE_INT32_TEST(mig_slb_nr, PowerPCCPU, cpu_pre_3_0_migration),
 640         VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, MAX_SLB_ENTRIES),
 641         VMSTATE_END_OF_LIST()
 642     }
 643 };
 644 #endif /* TARGET_PPC64 */
 645
 646 static const VMStateDescription vmstate_tlb6xx_entry = {
 647     .name = "cpu/tlb6xx_entry",
 648     .version_id = 1,
 649     .minimum_version_id = 1,
 650     .fields = (VMStateField[]) {
 651         VMSTATE_UINTTL(pte0, ppc6xx_tlb_t),
 652         VMSTATE_UINTTL(pte1, ppc6xx_tlb_t),
 653         VMSTATE_UINTTL(EPN, ppc6xx_tlb_t),
 654         VMSTATE_END_OF_LIST()
 655     },
 656 };
 657
 658 static bool tlb6xx_needed(void *opaque)
 659 {
 660     PowerPCCPU *cpu = opaque;
 661     CPUPPCState *env = &cpu->env;
 662
 663     return env->nb_tlb && (env->tlb_type == TLB_6XX);
 664 }
 665
 666 static const VMStateDescription vmstate_tlb6xx = {
 667     .name = "cpu/tlb6xx",
 668     .version_id = 1,
 669     .minimum_version_id = 1,
 670     .needed = tlb6xx_needed,
 671     .fields = (VMStateField[]) {
 672         VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU, NULL),
 673         VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlb6, PowerPCCPU,
 674                                             env.nb_tlb,
 675                                             vmstate_tlb6xx_entry,
 676                                             ppc6xx_tlb_t),
 677         VMSTATE_UINTTL_ARRAY(env.tgpr, PowerPCCPU, 4),
 678         VMSTATE_END_OF_LIST()
 679     }
 680 };
 681
 682 static const VMStateDescription vmstate_tlbemb_entry = {
 683     .name = "cpu/tlbemb_entry",
 684     .version_id = 1,
 685     .minimum_version_id = 1,
 686     .fields = (VMStateField[]) {
 687         VMSTATE_UINT64(RPN, ppcemb_tlb_t),
 688         VMSTATE_UINTTL(EPN, ppcemb_tlb_t),
 689         VMSTATE_UINTTL(PID, ppcemb_tlb_t),
 690         VMSTATE_UINTTL(size, ppcemb_tlb_t),
 691         VMSTATE_UINT32(prot, ppcemb_tlb_t),
 692         VMSTATE_UINT32(attr, ppcemb_tlb_t),
 693         VMSTATE_END_OF_LIST()
 694     },
 695 };
 696
 697 static bool tlbemb_needed(void *opaque)
 698 {
 699     PowerPCCPU *cpu = opaque;
 700     CPUPPCState *env = &cpu->env;
 701
 702     return env->nb_tlb && (env->tlb_type == TLB_EMB);
 703 }
 704
 705 static bool pbr403_needed(void *opaque)
 706 {
 707     PowerPCCPU *cpu = opaque;
 708     uint32_t pvr = cpu->env.spr[SPR_PVR];
 709
 710     return (pvr & 0xffff0000) == 0x00200000;
 711 }
 712
 713 static const VMStateDescription vmstate_pbr403 = {
 714     .name = "cpu/pbr403",
 715     .version_id = 1,
 716     .minimum_version_id = 1,
 717     .needed = pbr403_needed,
 718     .fields = (VMStateField[]) {
 719         VMSTATE_UINTTL_ARRAY(env.pb, PowerPCCPU, 4),
 720         VMSTATE_END_OF_LIST()
 721     },
 722 };
 723
 724 static const VMStateDescription vmstate_tlbemb = {
 725     .name = "cpu/tlb6xx",
 726     .version_id = 1,
 727     .minimum_version_id = 1,
 728     .needed = tlbemb_needed,
 729     .fields = (VMStateField[]) {
 730         VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU, NULL),
 731         VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbe, PowerPCCPU,
 732                                             env.nb_tlb,
 733                                             vmstate_tlbemb_entry,
 734                                             ppcemb_tlb_t),
 735         /* 403 protection registers */
 736         VMSTATE_END_OF_LIST()
 737     },
 738     .subsections = (const VMStateDescription*[]) {
 739         &vmstate_pbr403,
 740         NULL
 741     }
 742 };
 743
 744 static const VMStateDescription vmstate_tlbmas_entry = {
 745     .name = "cpu/tlbmas_entry",
 746     .version_id = 1,
 747     .minimum_version_id = 1,
 748     .fields = (VMStateField[]) {
 749         VMSTATE_UINT32(mas8, ppcmas_tlb_t),
 750         VMSTATE_UINT32(mas1, ppcmas_tlb_t),
 751         VMSTATE_UINT64(mas2, ppcmas_tlb_t),
 752         VMSTATE_UINT64(mas7_3, ppcmas_tlb_t),
 753         VMSTATE_END_OF_LIST()
 754     },
 755 };
 756
 757 static bool tlbmas_needed(void *opaque)
 758 {
 759     PowerPCCPU *cpu = opaque;
 760     CPUPPCState *env = &cpu->env;
 761
 762     return env->nb_tlb && (env->tlb_type == TLB_MAS);
 763 }
 764
 765 static const VMStateDescription vmstate_tlbmas = {
 766     .name = "cpu/tlbmas",
 767     .version_id = 1,
 768     .minimum_version_id = 1,
 769     .needed = tlbmas_needed,
 770     .fields = (VMStateField[]) {
 771         VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU, NULL),
 772         VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbm, PowerPCCPU,
 773                                             env.nb_tlb,
 774                                             vmstate_tlbmas_entry,
 775                                             ppcmas_tlb_t),
 776         VMSTATE_END_OF_LIST()
 777     }
 778 };
 779
 780 static bool compat_needed(void *opaque)
 781 {
 782     PowerPCCPU *cpu = opaque;
 783
 784     assert(!(cpu->compat_pvr && !cpu->vhyp));
 785     return !cpu->pre_2_10_migration && cpu->compat_pvr != 0;
 786 }
 787
 788 static const VMStateDescription vmstate_compat = {
 789     .name = "cpu/compat",
 790     .version_id = 1,
 791     .minimum_version_id = 1,
 792     .needed = compat_needed,
 793     .fields = (VMStateField[]) {
 794         VMSTATE_UINT32(compat_pvr, PowerPCCPU),
 795         VMSTATE_END_OF_LIST()
 796     }
 797 };
 798
 799 const VMStateDescription vmstate_ppc_cpu = {
 800     .name = "cpu",
 801     .version_id = 5,
 802     .minimum_version_id = 5,
 803     .minimum_version_id_old = 4,
 804     .load_state_old = cpu_load_old,
 805     .pre_save = cpu_pre_save,
 806     .post_load = cpu_post_load,
 807     .fields = (VMStateField[]) {
 808         VMSTATE_UNUSED(sizeof(target_ulong)), /* was _EQUAL(env.spr[SPR_PVR]) */
 809
 810         /* User mode architected state */
 811         VMSTATE_UINTTL_ARRAY(env.gpr, PowerPCCPU, 32),
 812 #if !defined(TARGET_PPC64)
 813         VMSTATE_UINTTL_ARRAY(env.gprh, PowerPCCPU, 32),
 814 #endif
 815         VMSTATE_UINT32_ARRAY(env.crf, PowerPCCPU, 8),
 816         VMSTATE_UINTTL(env.nip, PowerPCCPU),
 817
 818         /* SPRs */
 819         VMSTATE_UINTTL_ARRAY(env.spr, PowerPCCPU, 1024),
 820         VMSTATE_UINT64(env.spe_acc, PowerPCCPU),
 821
 822         /* Reservation */
 823         VMSTATE_UINTTL(env.reserve_addr, PowerPCCPU),
 824
 825         /* Supervisor mode architected state */
 826         VMSTATE_UINTTL(env.msr, PowerPCCPU),
 827
 828         /* Internal state */
 829         VMSTATE_UINTTL(env.hflags_nmsr, PowerPCCPU),
 830         /* FIXME: access_type? */
 831
 832         /* Sanity checking */
 833         VMSTATE_UINTTL_TEST(mig_msr_mask, PowerPCCPU, cpu_pre_2_8_migration),
 834         VMSTATE_UINT64_TEST(mig_insns_flags, PowerPCCPU, cpu_pre_2_8_migration),
 835         VMSTATE_UINT64_TEST(mig_insns_flags2, PowerPCCPU,
 836                             cpu_pre_2_8_migration),
 837         VMSTATE_UINT32_TEST(mig_nb_BATs, PowerPCCPU, cpu_pre_2_8_migration),
 838         VMSTATE_END_OF_LIST()
 839     },
 840     .subsections = (const VMStateDescription*[]) {
 841         &vmstate_fpu,
 842         &vmstate_altivec,
 843         &vmstate_vsx,
 844         &vmstate_sr,
 845 #ifdef TARGET_PPC64
 846         &vmstate_tm,
 847         &vmstate_slb,
 848 #endif /* TARGET_PPC64 */
 849         &vmstate_tlb6xx,
 850         &vmstate_tlbemb,
 851         &vmstate_tlbmas,
 852         &vmstate_compat,
 853         NULL
 854     }
 855 };