Re: [Qemu-devel] [PATCH v2 01/11] target-ppc: Convert ppc cpu savevm to VMStateDescription

[Alexey Kardashevskiy <aik@ozlabs.ru>]

On 07/19/2013 05:32 AM, Anthony Liguori wrote:
> From: Alexey Kardashevskiy <aik@ozlabs.ru>
> 
> The savevm code for the powerpc cpu emulation is currently based around
> the old register_savevm() rather than register_vmstate() method.  It's also
> rather broken, missing some important state on some CPU models.
> 
> This patch completely rewrites the savevm for target-ppc, using the new
> VMStateDescription approach.  Exactly what needs to be saved in what
> configurations has been more carefully examined, too.  This introduces a
> new version (5) of the cpu save format.  The old load function is retained
> to support version 4 images.
> 
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> [aik: ppc cpu savevm convertion fixed to use PowerPCCPU instead of CPUPPCState]
> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
> ---
>  target-ppc/cpu-qom.h        |   4 +
>  target-ppc/cpu.h            |   8 +-
>  target-ppc/machine.c        | 531 ++++++++++++++++++++++++++++++++++++--------
>  target-ppc/translate_init.c |   2 +
>  4 files changed, 452 insertions(+), 93 deletions(-)
> 
> diff --git a/target-ppc/cpu-qom.h b/target-ppc/cpu-qom.h
> index 7132599..c660e3c 100644
> --- a/target-ppc/cpu-qom.h
> +++ b/target-ppc/cpu-qom.h
> @@ -106,4 +106,8 @@ void ppc_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
>  void ppc_cpu_dump_statistics(CPUState *cpu, FILE *f,
>                               fprintf_function cpu_fprintf, int flags);
>  
> +#ifndef CONFIG_USER_ONLY
> +extern const struct VMStateDescription vmstate_ppc_cpu;
> +#endif
> +
>  #endif
> diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
> index 7a7b1bf..454ea13 100644
> --- a/target-ppc/cpu.h
> +++ b/target-ppc/cpu.h
> @@ -948,7 +948,7 @@ struct CPUPPCState {
>  #if defined(TARGET_PPC64)
>      /* PowerPC 64 SLB area */
>      ppc_slb_t slb[64];
> -    int slb_nr;
> +    int32_t slb_nr;
>  #endif
>      /* segment registers */
>      hwaddr htab_base;
> @@ -957,11 +957,11 @@ struct CPUPPCState {
>      /* externally stored hash table */
>      uint8_t *external_htab;
>      /* BATs */
> -    int nb_BATs;
> +    uint32_t nb_BATs;
>      target_ulong DBAT[2][8];
>      target_ulong IBAT[2][8];
>      /* PowerPC TLB registers (for 4xx, e500 and 60x software driven TLBs) */
> -    int nb_tlb;      /* Total number of TLB                                  */
> +    int32_t nb_tlb;      /* Total number of TLB                              */
>      int tlb_per_way; /* Speed-up helper: used to avoid divisions at run time */
>      int nb_ways;     /* Number of ways in the TLB set                        */
>      int last_way;    /* Last used way used to allocate TLB in a LRU way      */
> @@ -1176,8 +1176,6 @@ static inline CPUPPCState *cpu_init(const char *cpu_model)
>  #define cpu_signal_handler cpu_ppc_signal_handler
>  #define cpu_list ppc_cpu_list
>  
> -#define CPU_SAVE_VERSION 4
> -
>  /* MMU modes definitions */
>  #define MMU_MODE0_SUFFIX _user
>  #define MMU_MODE1_SUFFIX _kernel
> diff --git a/target-ppc/machine.c b/target-ppc/machine.c
> index 2d10adb..12e1512 100644
> --- a/target-ppc/machine.c
> +++ b/target-ppc/machine.c
> @@ -1,96 +1,12 @@
>  #include "hw/hw.h"
>  #include "hw/boards.h"
>  #include "sysemu/kvm.h"
> +#include "helper_regs.h"
>  
> -void cpu_save(QEMUFile *f, void *opaque)
> +static int cpu_load_old(QEMUFile *f, void *opaque, int version_id)
>  {
> -    CPUPPCState *env = (CPUPPCState *)opaque;
> -    unsigned int i, j;
> -    uint32_t fpscr;
> -    target_ulong xer;
> -
> -    for (i = 0; i < 32; i++)
> -        qemu_put_betls(f, &env->gpr[i]);
> -#if !defined(TARGET_PPC64)
> -    for (i = 0; i < 32; i++)
> -        qemu_put_betls(f, &env->gprh[i]);
> -#endif
> -    qemu_put_betls(f, &env->lr);
> -    qemu_put_betls(f, &env->ctr);
> -    for (i = 0; i < 8; i++)
> -        qemu_put_be32s(f, &env->crf[i]);
> -    xer = cpu_read_xer(env);
> -    qemu_put_betls(f, &xer);
> -    qemu_put_betls(f, &env->reserve_addr);
> -    qemu_put_betls(f, &env->msr);
> -    for (i = 0; i < 4; i++)
> -        qemu_put_betls(f, &env->tgpr[i]);
> -    for (i = 0; i < 32; i++) {
> -        union {
> -            float64 d;
> -            uint64_t l;
> -        } u;
> -        u.d = env->fpr[i];
> -        qemu_put_be64(f, u.l);
> -    }
> -    fpscr = env->fpscr;
> -    qemu_put_be32s(f, &fpscr);
> -    qemu_put_sbe32s(f, &env->access_type);
> -#if defined(TARGET_PPC64)
> -    qemu_put_betls(f, &env->spr[SPR_ASR]);
> -    qemu_put_sbe32s(f, &env->slb_nr);
> -#endif
> -    qemu_put_betls(f, &env->spr[SPR_SDR1]);
> -    for (i = 0; i < 32; i++)
> -        qemu_put_betls(f, &env->sr[i]);
> -    for (i = 0; i < 2; i++)
> -        for (j = 0; j < 8; j++)
> -            qemu_put_betls(f, &env->DBAT[i][j]);
> -    for (i = 0; i < 2; i++)
> -        for (j = 0; j < 8; j++)
> -            qemu_put_betls(f, &env->IBAT[i][j]);
> -    qemu_put_sbe32s(f, &env->nb_tlb);
> -    qemu_put_sbe32s(f, &env->tlb_per_way);
> -    qemu_put_sbe32s(f, &env->nb_ways);
> -    qemu_put_sbe32s(f, &env->last_way);
> -    qemu_put_sbe32s(f, &env->id_tlbs);
> -    qemu_put_sbe32s(f, &env->nb_pids);
> -    if (env->tlb.tlb6) {
> -        // XXX assumes 6xx
> -        for (i = 0; i < env->nb_tlb; i++) {
> -            qemu_put_betls(f, &env->tlb.tlb6[i].pte0);
> -            qemu_put_betls(f, &env->tlb.tlb6[i].pte1);
> -            qemu_put_betls(f, &env->tlb.tlb6[i].EPN);
> -        }
> -    }
> -    for (i = 0; i < 4; i++)
> -        qemu_put_betls(f, &env->pb[i]);
> -    for (i = 0; i < 1024; i++)
> -        qemu_put_betls(f, &env->spr[i]);
> -    qemu_put_be32s(f, &env->vscr);
> -    qemu_put_be64s(f, &env->spe_acc);
> -    qemu_put_be32s(f, &env->spe_fscr);
> -    qemu_put_betls(f, &env->msr_mask);
> -    qemu_put_be32s(f, &env->flags);
> -    qemu_put_sbe32s(f, &env->error_code);
> -    qemu_put_be32s(f, &env->pending_interrupts);
> -    qemu_put_be32s(f, &env->irq_input_state);
> -    for (i = 0; i < POWERPC_EXCP_NB; i++)
> -        qemu_put_betls(f, &env->excp_vectors[i]);
> -    qemu_put_betls(f, &env->excp_prefix);
> -    qemu_put_betls(f, &env->ivor_mask);
> -    qemu_put_betls(f, &env->ivpr_mask);
> -    qemu_put_betls(f, &env->hreset_vector);
> -    qemu_put_betls(f, &env->nip);
> -    qemu_put_betls(f, &env->hflags);
> -    qemu_put_betls(f, &env->hflags_nmsr);
> -    qemu_put_sbe32s(f, &env->mmu_idx);
> -    qemu_put_sbe32(f, 0);
> -}
> -
> -int cpu_load(QEMUFile *f, void *opaque, int version_id)
> -{
> -    CPUPPCState *env = (CPUPPCState *)opaque;
> +    PowerPCCPU *cpu = opaque;
> +    CPUPPCState *env = &cpu->env;
>      unsigned int i, j;
>      target_ulong sdr1;
>      uint32_t fpscr;
> @@ -177,3 +93,442 @@ int cpu_load(QEMUFile *f, void *opaque, int version_id)
>  
>      return 0;
>  }
> +
> +static int get_avr(QEMUFile *f, void *pv, size_t size)
> +{
> +    ppc_avr_t *v = pv;
> +
> +    v->u64[0] = qemu_get_be64(f);
> +    v->u64[1] = qemu_get_be64(f);
> +
> +    return 0;
> +}
> +
> +static void put_avr(QEMUFile *f, void *pv, size_t size)
> +{
> +    ppc_avr_t *v = pv;
> +
> +    qemu_put_be64(f, v->u64[0]);
> +    qemu_put_be64(f, v->u64[1]);
> +}
> +
> +const VMStateInfo vmstate_info_avr = {
> +    .name = "avr",
> +    .get  = get_avr,
> +    .put  = put_avr,
> +};
> +
> +#define VMSTATE_AVR_ARRAY_V(_f, _s, _n, _v)                       \
> +    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_avr, ppc_avr_t)
> +
> +#define VMSTATE_AVR_ARRAY(_f, _s, _n)                             \
> +    VMSTATE_AVR_ARRAY_V(_f, _s, _n, 0)
> +
> +static void cpu_pre_save(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +    CPUPPCState *env = &cpu->env;
> +    int i;
> +
> +    env->spr[SPR_LR] = env->lr;
> +    env->spr[SPR_CTR] = env->ctr;
> +    env->spr[SPR_XER] = env->xer;
> +#if defined(TARGET_PPC64)
> +    env->spr[SPR_CFAR] = env->cfar;
> +#endif
> +    env->spr[SPR_BOOKE_SPEFSCR] = env->spe_fscr;
> +
> +    for (i = 0; (i < 4) && (i < env->nb_BATs); i++) {
> +        env->spr[SPR_DBAT0U + 2*i] = env->DBAT[0][i];
> +        env->spr[SPR_DBAT0U + 2*i + 1] = env->DBAT[1][i];
> +        env->spr[SPR_IBAT0U + 2*i] = env->IBAT[0][i];
> +        env->spr[SPR_IBAT0U + 2*i + 1] = env->IBAT[1][i];
> +    }
> +    for (i = 0; (i < 4) && ((i+4) < env->nb_BATs); i++) {
> +        env->spr[SPR_DBAT4U + 2*i] = env->DBAT[0][i+4];
> +        env->spr[SPR_DBAT4U + 2*i + 1] = env->DBAT[1][i+4];
> +        env->spr[SPR_IBAT4U + 2*i] = env->IBAT[0][i+4];
> +        env->spr[SPR_IBAT4U + 2*i + 1] = env->IBAT[1][i+4];
> +    }
> +}
> +
> +static int cpu_post_load(void *opaque, int version_id)
> +{
> +    PowerPCCPU *cpu = opaque;
> +    CPUPPCState *env = &cpu->env;
> +    int i;
> +
> +    env->lr = env->spr[SPR_LR];
> +    env->ctr = env->spr[SPR_CTR];
> +    env->xer = env->spr[SPR_XER];
> +#if defined(TARGET_PPC64)
> +    env->cfar = env->spr[SPR_CFAR];
> +#endif
> +    env->spe_fscr = env->spr[SPR_BOOKE_SPEFSCR];
> +
> +    for (i = 0; (i < 4) && (i < env->nb_BATs); i++) {
> +        env->DBAT[0][i] = env->spr[SPR_DBAT0U + 2*i];
> +        env->DBAT[1][i] = env->spr[SPR_DBAT0U + 2*i + 1];
> +        env->IBAT[0][i] = env->spr[SPR_IBAT0U + 2*i];
> +        env->IBAT[1][i] = env->spr[SPR_IBAT0U + 2*i + 1];
> +    }
> +    for (i = 0; (i < 4) && ((i+4) < env->nb_BATs); i++) {
> +        env->DBAT[0][i+4] = env->spr[SPR_DBAT4U + 2*i];
> +        env->DBAT[1][i+4] = env->spr[SPR_DBAT4U + 2*i + 1];
> +        env->IBAT[0][i+4] = env->spr[SPR_IBAT4U + 2*i];
> +        env->IBAT[1][i+4] = env->spr[SPR_IBAT4U + 2*i + 1];
> +    }
> +
> +    /* Restore htab_base and htab_mask variables */
> +    ppc_store_sdr1(env, env->spr[SPR_SDR1]);
> +
> +    hreg_compute_hflags(env);
> +    hreg_compute_mem_idx(env);
> +
> +    return 0;
> +}
> +
> +static bool fpu_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +
> +    return (cpu->env.insns_flags & PPC_FLOAT);
> +}
> +
> +static const VMStateDescription vmstate_fpu = {
> +    .name = "cpu/fpu",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_FLOAT64_ARRAY(env.fpr, PowerPCCPU, 32),
> +        VMSTATE_UINTTL(env.fpscr, PowerPCCPU),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool altivec_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +
> +    return (cpu->env.insns_flags & PPC_ALTIVEC);
> +}
> +
> +static const VMStateDescription vmstate_altivec = {
> +    .name = "cpu/altivec",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_AVR_ARRAY(env.avr, PowerPCCPU, 32),
> +        VMSTATE_UINT32(env.vscr, PowerPCCPU),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool vsx_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +
> +    return (cpu->env.insns_flags2 & PPC2_VSX);
> +}
> +
> +static const VMStateDescription vmstate_vsx = {
> +    .name = "cpu/vsx",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_UINT64_ARRAY(env.vsr, PowerPCCPU, 32),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool sr_needed(void *opaque)
> +{
> +#ifdef TARGET_PPC64
> +    PowerPCCPU *cpu = opaque;
> +
> +    return !(cpu->env.mmu_model & POWERPC_MMU_64);
> +#else
> +    return true;
> +#endif
> +}
> +
> +static const VMStateDescription vmstate_sr = {
> +    .name = "cpu/sr",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_UINTTL_ARRAY(env.sr, PowerPCCPU, 32),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +#ifdef TARGET_PPC64
> +static int get_slbe(QEMUFile *f, void *pv, size_t size)
> +{
> +    ppc_slb_t *v = pv;
> +
> +    v->esid = qemu_get_be64(f);
> +    v->vsid = qemu_get_be64(f);
> +
> +    return 0;
> +}
> +
> +static void put_slbe(QEMUFile *f, void *pv, size_t size)
> +{
> +    ppc_slb_t *v = pv;
> +
> +    qemu_put_be64(f, v->esid);
> +    qemu_put_be64(f, v->vsid);
> +}
> +
> +const VMStateInfo vmstate_info_slbe = {
> +    .name = "slbe",
> +    .get  = get_slbe,
> +    .put  = put_slbe,
> +};
> +
> +#define VMSTATE_SLB_ARRAY_V(_f, _s, _n, _v)                       \
> +    VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_slbe, ppc_slb_t)
> +
> +#define VMSTATE_SLB_ARRAY(_f, _s, _n)                             \
> +    VMSTATE_SLB_ARRAY_V(_f, _s, _n, 0)
> +
> +static bool slb_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +
> +    /* We don't support any of the old segment table based 64-bit CPUs */
> +    return (cpu->env.mmu_model & POWERPC_MMU_64);
> +}
> +
> +static const VMStateDescription vmstate_slb = {
> +    .name = "cpu/slb",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_INT32_EQUAL(env.slb_nr, PowerPCCPU),
> +        VMSTATE_SLB_ARRAY(env.slb, PowerPCCPU, 64),
> +        VMSTATE_END_OF_LIST()
> +    }
> +};
> +#endif /* TARGET_PPC64 */
> +
> +static const VMStateDescription vmstate_tlb6xx_entry = {
> +    .name = "cpu/tlb6xx_entry",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_UINTTL(pte0, ppc6xx_tlb_t),
> +        VMSTATE_UINTTL(pte1, ppc6xx_tlb_t),
> +        VMSTATE_UINTTL(EPN, ppc6xx_tlb_t),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool tlb6xx_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +    CPUPPCState *env = &cpu->env;
> +
> +    return env->nb_tlb && (env->tlb_type == TLB_6XX);
> +}
> +
> +static const VMStateDescription vmstate_tlb6xx = {
> +    .name = "cpu/tlb6xx",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
> +        VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlb6, PowerPCCPU,
> +                                            env.nb_tlb,
> +                                            vmstate_tlb6xx_entry,
> +                                            ppc6xx_tlb_t),
> +        VMSTATE_UINTTL_ARRAY(env.tgpr, PowerPCCPU, 4),
> +        VMSTATE_END_OF_LIST()
> +    }
> +};
> +
> +static const VMStateDescription vmstate_tlbemb_entry = {
> +    .name = "cpu/tlbemb_entry",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_UINT64(RPN, ppcemb_tlb_t),
> +        VMSTATE_UINTTL(EPN, ppcemb_tlb_t),
> +        VMSTATE_UINTTL(PID, ppcemb_tlb_t),
> +        VMSTATE_UINTTL(size, ppcemb_tlb_t),
> +        VMSTATE_UINT32(prot, ppcemb_tlb_t),
> +        VMSTATE_UINT32(attr, ppcemb_tlb_t),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool tlbemb_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +    CPUPPCState *env = &cpu->env;
> +
> +    return env->nb_tlb && (env->tlb_type == TLB_EMB);
> +}
> +
> +static bool pbr403_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +    uint32_t pvr = cpu->env.spr[SPR_PVR];
> +
> +    return (pvr & 0xffff0000) == 0x00200000;
> +}
> +
> +static const VMStateDescription vmstate_pbr403 = {
> +    .name = "cpu/pbr403",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_UINTTL_ARRAY(env.pb, PowerPCCPU, 4),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static const VMStateDescription vmstate_tlbemb = {
> +    .name = "cpu/tlb6xx",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
> +        VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbe, PowerPCCPU,
> +                                            env.nb_tlb,
> +                                            vmstate_tlbemb_entry,
> +                                            ppcemb_tlb_t),
> +        /* 403 protection registers */
> +        VMSTATE_END_OF_LIST()
> +    },
> +    .subsections = (VMStateSubsection []) {
> +        {
> +            .vmsd = &vmstate_pbr403,
> +            .needed = pbr403_needed,
> +        } , {
> +            /* empty */
> +        }
> +    }
> +};
> +
> +static const VMStateDescription vmstate_tlbmas_entry = {
> +    .name = "cpu/tlbmas_entry",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_UINT32(mas8, ppcmas_tlb_t),
> +        VMSTATE_UINT32(mas1, ppcmas_tlb_t),
> +        VMSTATE_UINT64(mas2, ppcmas_tlb_t),
> +        VMSTATE_UINT64(mas7_3, ppcmas_tlb_t),
> +        VMSTATE_END_OF_LIST()
> +    },
> +};
> +
> +static bool tlbmas_needed(void *opaque)
> +{
> +    PowerPCCPU *cpu = opaque;
> +    CPUPPCState *env = &cpu->env;
> +
> +    return env->nb_tlb && (env->tlb_type == TLB_MAS);
> +}
> +
> +static const VMStateDescription vmstate_tlbmas = {
> +    .name = "cpu/tlbmas",
> +    .version_id = 1,
> +    .minimum_version_id = 1,
> +    .minimum_version_id_old = 1,
> +    .fields      = (VMStateField []) {
> +        VMSTATE_INT32_EQUAL(env.nb_tlb, PowerPCCPU),
> +        VMSTATE_STRUCT_VARRAY_POINTER_INT32(env.tlb.tlbm, PowerPCCPU,
> +                                            env.nb_tlb,
> +                                            vmstate_tlbmas_entry,
> +                                            ppcmas_tlb_t),
> +        VMSTATE_END_OF_LIST()
> +    }
> +};
> +
> +const VMStateDescription vmstate_ppc_cpu = {
> +    .name = "cpu",
> +    .version_id = 5,
> +    .minimum_version_id = 5,
> +    .minimum_version_id_old = 4,
> +    .load_state_old = cpu_load_old,
> +    .pre_save = cpu_pre_save,
> +    .post_load = cpu_post_load,
> +    .fields      = (VMStateField []) {
> +        /* Verify we haven't changed the pvr */
> +        VMSTATE_UINTTL_EQUAL(env.spr[SPR_PVR], PowerPCCPU),
> +
> +        /* User mode architected state */
> +        VMSTATE_UINTTL_ARRAY(env.gpr, PowerPCCPU, 32),
> +#if !defined(TARGET_PPC64)
> +        VMSTATE_UINTTL_ARRAY(env.gprh, PowerPCCPU, 32),
> +#endif
> +        VMSTATE_UINT32_ARRAY(env.crf, PowerPCCPU, 8),
> +        VMSTATE_UINTTL(env.nip, PowerPCCPU),
> +
> +        /* SPRs */
> +        VMSTATE_UINTTL_ARRAY(env.spr, PowerPCCPU, 1024),
> +        VMSTATE_UINT64(env.spe_acc, PowerPCCPU),
> +
> +        /* Reservation */
> +        VMSTATE_UINTTL(env.reserve_addr, PowerPCCPU),
> +
> +        /* Supervisor mode architected state */
> +        VMSTATE_UINTTL(env.msr, PowerPCCPU),
> +
> +        /* Internal state */
> +        VMSTATE_UINTTL(env.hflags_nmsr, PowerPCCPU),
> +        /* FIXME: access_type? */
> +
> +        /* Sanity checking */
> +        VMSTATE_UINTTL_EQUAL(env.msr_mask, PowerPCCPU),
> +        VMSTATE_UINT64_EQUAL(env.insns_flags, PowerPCCPU),
> +        VMSTATE_UINT64_EQUAL(env.insns_flags2, PowerPCCPU),
> +        VMSTATE_UINT32_EQUAL(env.nb_BATs, PowerPCCPU),
> +        VMSTATE_END_OF_LIST()
> +    },
> +    .subsections = (VMStateSubsection []) {
> +        {
> +            .vmsd = &vmstate_fpu,
> +            .needed = fpu_needed,
> +        } , {
> +            .vmsd = &vmstate_altivec,
> +            .needed = altivec_needed,
> +        } , {
> +            .vmsd = &vmstate_vsx,
> +            .needed = vsx_needed,
> +        } , {
> +            .vmsd = &vmstate_sr,
> +            .needed = sr_needed,
> +        } , {
> +#ifdef TARGET_PPC64
> +            .vmsd = &vmstate_slb,
> +            .needed = slb_needed,
> +        } , {
> +#endif /* TARGET_PPC64 */
> +            .vmsd = &vmstate_tlb6xx,
> +            .needed = tlb6xx_needed,
> +        } , {
> +            .vmsd = &vmstate_tlbemb,
> +            .needed = tlbemb_needed,
> +        } , {
> +            .vmsd = &vmstate_tlbmas,
> +            .needed = tlbmas_needed,
> +        } , {
> +            /* empty */
> +        }
> +    }
> +};
> diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
> index 79bfcd8..09ea944 100644
> --- a/target-ppc/translate_init.c
> +++ b/target-ppc/translate_init.c
> @@ -8449,6 +8449,8 @@ static void ppc_cpu_class_init(ObjectClass *oc, void *data)
>      cc->do_interrupt = ppc_cpu_do_interrupt;
>      cc->dump_state = ppc_cpu_dump_state;
>      cc->dump_statistics = ppc_cpu_dump_statistics;
> +
> +    cpu_class_set_vmsd(cc, &vmstate_ppc_cpu);
>  }


Does not apply on the current master from qemu.org, need this:

diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index f97c0c7..f377b74 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8462,7 +8462,7 @@ static void ppc_cpu_class_init(ObjectClass *oc, void
*data)
     cc->get_phys_page_debug = ppc_cpu_get_phys_page_debug;
 #endif

-    cpu_class_set_vmsd(cc, &vmstate_ppc_cpu);
+    dc->vmsd = &vmstate_ppc_cpu;
 }

 static const TypeInfo ppc_cpu_type_info = {



-- 
Alexey