[Qemu-devel] [PATCH 12/35] vmstate: port ppc cpu

[Juan Quintela <quintela@redhat.com>]

Added sdr1_vmstate because storing the value requires calling ppc_store_sdr1().
The position when the function is called also changes (I think it is save).

Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 target-ppc/cpu.h     |    5 +-
 target-ppc/machine.c |  245 ++++++++++++++++++--------------------------------
 2 files changed, 90 insertions(+), 160 deletions(-)

diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 84c9674..473e1a6 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1064,6 +1064,9 @@ struct CPUPPCState {
      */
     uint8_t fit_period[4];
     uint8_t wdt_period[4];
+
+    /* Fields needed as intermediate for vmstate */
+    target_ulong sdr1_vmstate;
 };

 #define SET_FIT_PERIOD(a_, b_, c_, d_)          \
@@ -1220,8 +1223,6 @@ int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val);
 #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 d6c2ee4..ca60bc0 100644
--- a/target-ppc/machine.c
+++ b/target-ppc/machine.c
@@ -2,172 +2,101 @@
 #include "hw/boards.h"
 #include "kvm.h"

-void cpu_save(QEMUFile *f, void *opaque)
+static const VMStateDescription vmstate_tlb = {
+    .name = "tlb",
+    .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 is_tlb6(void *opaque, int version_id)
 {
-    CPUPPCState *env = (CPUPPCState *)opaque;
-    unsigned int i, j;
+    CPUPPCState *env = opaque;

-    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]);
-    qemu_put_betls(f, &env->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);
-    }
-    qemu_put_be32s(f, &env->fpscr);
-    qemu_put_sbe32s(f, &env->access_type);
-#if defined(TARGET_PPC64)
-    qemu_put_betls(f, &env->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->hreset_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_sbe32s(f, &env->power_mode);
+    return (env->tlb.tlb6 != NULL);
 }

-int cpu_load(QEMUFile *f, void *opaque, int version_id)
+static void cpu_pre_save(void *opaque)
 {
-    CPUPPCState *env = (CPUPPCState *)opaque;
-    unsigned int i, j;
-    target_ulong sdr1;
+    CPUPPCState *env = opaque;
+    env->sdr1_vmstate = env->spr[SPR_SDR1];
+}

-    for (i = 0; i < 32; i++)
-        qemu_get_betls(f, &env->gpr[i]);
+static int cpu_post_load(void *opaque, int version_id)
+{
+    CPUPPCState *env = opaque;
+    ppc_store_sdr1(env, env->sdr1_vmstate);
+    return 0;
+}
+
+const VMStateDescription vmstate_cpu = {
+    .name = "cpu",
+    .version_id = 4,
+    .minimum_version_id = 4,
+    .minimum_version_id_old = 4,
+    .pre_save = cpu_pre_save,
+    .post_load = cpu_post_load,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINTTL_ARRAY(gpr, CPUPPCState, 32),
 #if !defined(TARGET_PPC64)
-    for (i = 0; i < 32; i++)
-        qemu_get_betls(f, &env->gprh[i]);
+        VMSTATE_UINTTL_ARRAY(gprh, CPUPPCState, 32),
 #endif
-    qemu_get_betls(f, &env->lr);
-    qemu_get_betls(f, &env->ctr);
-    for (i = 0; i < 8; i++)
-        qemu_get_be32s(f, &env->crf[i]);
-    qemu_get_betls(f, &env->xer);
-    qemu_get_betls(f, &env->reserve_addr);
-    qemu_get_betls(f, &env->msr);
-    for (i = 0; i < 4; i++)
-        qemu_get_betls(f, &env->tgpr[i]);
-    for (i = 0; i < 32; i++) {
-        union {
-            float64 d;
-            uint64_t l;
-        } u;
-        u.l = qemu_get_be64(f);
-        env->fpr[i] = u.d;
-    }
-    qemu_get_be32s(f, &env->fpscr);
-    qemu_get_sbe32s(f, &env->access_type);
+        VMSTATE_UINTTL(lr, CPUPPCState),
+        VMSTATE_UINTTL(ctr, CPUPPCState),
+        VMSTATE_UINT32_ARRAY(crf, CPUPPCState, 8),
+        VMSTATE_UINTTL(xer, CPUPPCState),
+        VMSTATE_UINTTL(reserve_addr, CPUPPCState),
+        VMSTATE_UINTTL(msr, CPUPPCState),
+        VMSTATE_UINTTL_ARRAY(tgpr, CPUPPCState, 4),
+        VMSTATE_FLOAT64_ARRAY(fpr, CPUPPCState, 32),
+        VMSTATE_UINT32(fpscr, CPUPPCState),
+        VMSTATE_INT32(access_type, CPUPPCState),
 #if defined(TARGET_PPC64)
-    qemu_get_betls(f, &env->asr);
-    qemu_get_sbe32s(f, &env->slb_nr);
+        VMSTATE_UINTTL(asr, CPUPPCState),
+        VMSTATE_INT32(slb_nr, CPUPPCState),
 #endif
-    qemu_get_betls(f, &sdr1);
-    for (i = 0; i < 32; i++)
-        qemu_get_betls(f, &env->sr[i]);
-    for (i = 0; i < 2; i++)
-        for (j = 0; j < 8; j++)
-            qemu_get_betls(f, &env->DBAT[i][j]);
-    for (i = 0; i < 2; i++)
-        for (j = 0; j < 8; j++)
-            qemu_get_betls(f, &env->IBAT[i][j]);
-    qemu_get_sbe32s(f, &env->nb_tlb);
-    qemu_get_sbe32s(f, &env->tlb_per_way);
-    qemu_get_sbe32s(f, &env->nb_ways);
-    qemu_get_sbe32s(f, &env->last_way);
-    qemu_get_sbe32s(f, &env->id_tlbs);
-    qemu_get_sbe32s(f, &env->nb_pids);
-    if (env->tlb.tlb6) {
-        // XXX assumes 6xx
-        for (i = 0; i < env->nb_tlb; i++) {
-            qemu_get_betls(f, &env->tlb.tlb6[i].pte0);
-            qemu_get_betls(f, &env->tlb.tlb6[i].pte1);
-            qemu_get_betls(f, &env->tlb.tlb6[i].EPN);
-        }
-    }
-    for (i = 0; i < 4; i++)
-        qemu_get_betls(f, &env->pb[i]);
-    for (i = 0; i < 1024; i++)
-        qemu_get_betls(f, &env->spr[i]);
-    ppc_store_sdr1(env, sdr1);
-    qemu_get_be32s(f, &env->vscr);
-    qemu_get_be64s(f, &env->spe_acc);
-    qemu_get_be32s(f, &env->spe_fscr);
-    qemu_get_betls(f, &env->msr_mask);
-    qemu_get_be32s(f, &env->flags);
-    qemu_get_sbe32s(f, &env->error_code);
-    qemu_get_be32s(f, &env->pending_interrupts);
-    qemu_get_be32s(f, &env->irq_input_state);
-    for (i = 0; i < POWERPC_EXCP_NB; i++)
-        qemu_get_betls(f, &env->excp_vectors[i]);
-    qemu_get_betls(f, &env->excp_prefix);
-    qemu_get_betls(f, &env->hreset_excp_prefix);
-    qemu_get_betls(f, &env->ivor_mask);
-    qemu_get_betls(f, &env->ivpr_mask);
-    qemu_get_betls(f, &env->hreset_vector);
-    qemu_get_betls(f, &env->nip);
-    qemu_get_betls(f, &env->hflags);
-    qemu_get_betls(f, &env->hflags_nmsr);
-    qemu_get_sbe32s(f, &env->mmu_idx);
-    qemu_get_sbe32s(f, &env->power_mode);
+        VMSTATE_UINTTL(spr[SPR_SDR1], CPUPPCState),
+        VMSTATE_UINTTL_ARRAY(sr, CPUPPCState, 32),
+        VMSTATE_UINTTL_ARRAY(DBAT[0], CPUPPCState, 8),
+        VMSTATE_UINTTL_ARRAY(DBAT[1], CPUPPCState, 8),
+        VMSTATE_UINTTL_ARRAY(IBAT[0], CPUPPCState, 8),
+        VMSTATE_UINTTL_ARRAY(IBAT[1], CPUPPCState, 8),
+        VMSTATE_INT32(nb_tlb, CPUPPCState),
+        VMSTATE_INT32(tlb_per_way, CPUPPCState),
+        VMSTATE_INT32(nb_ways, CPUPPCState),
+        VMSTATE_INT32(last_way, CPUPPCState),
+        VMSTATE_INT32(id_tlbs, CPUPPCState),
+        VMSTATE_INT32(nb_pids, CPUPPCState),
+        VMSTATE_STRUCT_VARRAY_INT32_TEST(tlb.tlb6, CPUPPCState, nb_tlb,
+                                         is_tlb6, vmstate_tlb, ppc6xx_tlb_t),
+        VMSTATE_UINTTL_ARRAY(pb, CPUPPCState, 4),
+        VMSTATE_UINTTL_ARRAY(spr, CPUPPCState, 1024),
+        VMSTATE_UINT32(vscr, CPUPPCState),
+        VMSTATE_UINT64(spe_acc, CPUPPCState),
+        VMSTATE_UINT32(spe_fscr, CPUPPCState),
+        VMSTATE_UINTTL(msr_mask, CPUPPCState),
+        VMSTATE_UINT32(flags, CPUPPCState),
+        VMSTATE_INT32(error_code, CPUPPCState),
+        VMSTATE_UINT32(pending_interrupts, CPUPPCState),
+        VMSTATE_UINT32(irq_input_state, CPUPPCState),
+        VMSTATE_UINTTL_ARRAY(excp_vectors, CPUPPCState, POWERPC_EXCP_NB),
+        VMSTATE_UINTTL(excp_prefix, CPUPPCState),
+        VMSTATE_UINTTL(hreset_excp_prefix, CPUPPCState),
+        VMSTATE_UINTTL(ivor_mask, CPUPPCState),
+        VMSTATE_UINTTL(ivpr_mask, CPUPPCState),
+        VMSTATE_UINTTL(hreset_vector, CPUPPCState),
+        VMSTATE_UINTTL(nip, CPUPPCState),
+        VMSTATE_UINTTL(hflags, CPUPPCState),
+        VMSTATE_UINTTL(hflags_nmsr, CPUPPCState),
+        VMSTATE_INT32(mmu_idx, CPUPPCState),
+        VMSTATE_INT32(power_mode, CPUPPCState),
+        VMSTATE_END_OF_LIST()
+    },
+};

-    return 0;
-}
-- 
1.7.7.6