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qemu/target-mips/machine.c

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#include "hw/hw.h"
#include "hw/boards.h"
#include "cpu.h"
static void save_tc(QEMUFile *f, TCState *tc)
{
int i;
/* Save active TC */
for(i = 0; i < 32; i++)
qemu_put_betls(f, &tc->gpr[i]);
qemu_put_betls(f, &tc->PC);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_put_betls(f, &tc->HI[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_put_betls(f, &tc->LO[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_put_betls(f, &tc->ACX[i]);
qemu_put_betls(f, &tc->DSPControl);
qemu_put_sbe32s(f, &tc->CP0_TCStatus);
qemu_put_sbe32s(f, &tc->CP0_TCBind);
qemu_put_betls(f, &tc->CP0_TCHalt);
qemu_put_betls(f, &tc->CP0_TCContext);
qemu_put_betls(f, &tc->CP0_TCSchedule);
qemu_put_betls(f, &tc->CP0_TCScheFBack);
qemu_put_sbe32s(f, &tc->CP0_Debug_tcstatus);
qemu_put_betls(f, &tc->CP0_UserLocal);
}
static void save_fpu(QEMUFile *f, CPUMIPSFPUContext *fpu)
{
int i;
for(i = 0; i < 32; i++)
qemu_put_be64s(f, &fpu->fpr[i].d);
qemu_put_s8s(f, &fpu->fp_status.float_detect_tininess);
qemu_put_s8s(f, &fpu->fp_status.float_rounding_mode);
qemu_put_s8s(f, &fpu->fp_status.float_exception_flags);
qemu_put_be32s(f, &fpu->fcr0);
qemu_put_be32s(f, &fpu->fcr31);
}
void cpu_save(QEMUFile *f, void *opaque)
{
CPUMIPSState *env = opaque;
int i;
/* Save active TC */
save_tc(f, &env->active_tc);
/* Save active FPU */
save_fpu(f, &env->active_fpu);
/* Save MVP */
qemu_put_sbe32s(f, &env->mvp->CP0_MVPControl);
qemu_put_sbe32s(f, &env->mvp->CP0_MVPConf0);
qemu_put_sbe32s(f, &env->mvp->CP0_MVPConf1);
/* Save TLB */
qemu_put_be32s(f, &env->tlb->nb_tlb);
qemu_put_be32s(f, &env->tlb->tlb_in_use);
for(i = 0; i < MIPS_TLB_MAX; i++) {
uint16_t flags = ((env->tlb->mmu.r4k.tlb[i].G << 10) |
(env->tlb->mmu.r4k.tlb[i].C0 << 7) |
(env->tlb->mmu.r4k.tlb[i].C1 << 4) |
(env->tlb->mmu.r4k.tlb[i].V0 << 3) |
(env->tlb->mmu.r4k.tlb[i].V1 << 2) |
(env->tlb->mmu.r4k.tlb[i].D0 << 1) |
(env->tlb->mmu.r4k.tlb[i].D1 << 0));
uint8_t asid;
qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].VPN);
qemu_put_be32s(f, &env->tlb->mmu.r4k.tlb[i].PageMask);
asid = env->tlb->mmu.r4k.tlb[i].ASID;
qemu_put_8s(f, &asid);
qemu_put_be16s(f, &flags);
qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[0]);
qemu_put_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[1]);
}
/* Save CPU metastate */
qemu_put_be32s(f, &env->current_tc);
qemu_put_be32s(f, &env->current_fpu);
qemu_put_sbe32s(f, &env->error_code);
qemu_put_be32s(f, &env->hflags);
qemu_put_betls(f, &env->btarget);
i = env->bcond;
qemu_put_sbe32s(f, &i);
/* Save remaining CP1 registers */
qemu_put_sbe32s(f, &env->CP0_Index);
qemu_put_sbe32s(f, &env->CP0_Random);
qemu_put_sbe32s(f, &env->CP0_VPEControl);
qemu_put_sbe32s(f, &env->CP0_VPEConf0);
qemu_put_sbe32s(f, &env->CP0_VPEConf1);
qemu_put_betls(f, &env->CP0_YQMask);
qemu_put_betls(f, &env->CP0_VPESchedule);
qemu_put_betls(f, &env->CP0_VPEScheFBack);
qemu_put_sbe32s(f, &env->CP0_VPEOpt);
qemu_put_betls(f, &env->CP0_EntryLo0);
qemu_put_betls(f, &env->CP0_EntryLo1);
qemu_put_betls(f, &env->CP0_Context);
qemu_put_sbe32s(f, &env->CP0_PageMask);
qemu_put_sbe32s(f, &env->CP0_PageGrain);
qemu_put_sbe32s(f, &env->CP0_Wired);
qemu_put_sbe32s(f, &env->CP0_SRSConf0);
qemu_put_sbe32s(f, &env->CP0_SRSConf1);
qemu_put_sbe32s(f, &env->CP0_SRSConf2);
qemu_put_sbe32s(f, &env->CP0_SRSConf3);
qemu_put_sbe32s(f, &env->CP0_SRSConf4);
qemu_put_sbe32s(f, &env->CP0_HWREna);
qemu_put_betls(f, &env->CP0_BadVAddr);
qemu_put_sbe32s(f, &env->CP0_Count);
qemu_put_betls(f, &env->CP0_EntryHi);
qemu_put_sbe32s(f, &env->CP0_Compare);
qemu_put_sbe32s(f, &env->CP0_Status);
qemu_put_sbe32s(f, &env->CP0_IntCtl);
qemu_put_sbe32s(f, &env->CP0_SRSCtl);
qemu_put_sbe32s(f, &env->CP0_SRSMap);
qemu_put_sbe32s(f, &env->CP0_Cause);
qemu_put_betls(f, &env->CP0_EPC);
qemu_put_sbe32s(f, &env->CP0_PRid);
qemu_put_sbe32s(f, &env->CP0_EBase);
qemu_put_sbe32s(f, &env->CP0_Config0);
qemu_put_sbe32s(f, &env->CP0_Config1);
qemu_put_sbe32s(f, &env->CP0_Config2);
qemu_put_sbe32s(f, &env->CP0_Config3);
qemu_put_sbe32s(f, &env->CP0_Config6);
qemu_put_sbe32s(f, &env->CP0_Config7);
qemu_put_betls(f, &env->lladdr);
for(i = 0; i < 8; i++)
qemu_put_betls(f, &env->CP0_WatchLo[i]);
for(i = 0; i < 8; i++)
qemu_put_sbe32s(f, &env->CP0_WatchHi[i]);
qemu_put_betls(f, &env->CP0_XContext);
qemu_put_sbe32s(f, &env->CP0_Framemask);
qemu_put_sbe32s(f, &env->CP0_Debug);
qemu_put_betls(f, &env->CP0_DEPC);
qemu_put_sbe32s(f, &env->CP0_Performance0);
qemu_put_sbe32s(f, &env->CP0_TagLo);
qemu_put_sbe32s(f, &env->CP0_DataLo);
qemu_put_sbe32s(f, &env->CP0_TagHi);
qemu_put_sbe32s(f, &env->CP0_DataHi);
qemu_put_betls(f, &env->CP0_ErrorEPC);
qemu_put_sbe32s(f, &env->CP0_DESAVE);
/* Save inactive TC state */
for (i = 0; i < MIPS_SHADOW_SET_MAX; i++)
save_tc(f, &env->tcs[i]);
for (i = 0; i < MIPS_FPU_MAX; i++)
save_fpu(f, &env->fpus[i]);
}
static void load_tc(QEMUFile *f, TCState *tc, int version_id)
{
int i;
/* Save active TC */
for(i = 0; i < 32; i++)
qemu_get_betls(f, &tc->gpr[i]);
qemu_get_betls(f, &tc->PC);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_get_betls(f, &tc->HI[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_get_betls(f, &tc->LO[i]);
for(i = 0; i < MIPS_DSP_ACC; i++)
qemu_get_betls(f, &tc->ACX[i]);
qemu_get_betls(f, &tc->DSPControl);
qemu_get_sbe32s(f, &tc->CP0_TCStatus);
qemu_get_sbe32s(f, &tc->CP0_TCBind);
qemu_get_betls(f, &tc->CP0_TCHalt);
qemu_get_betls(f, &tc->CP0_TCContext);
qemu_get_betls(f, &tc->CP0_TCSchedule);
qemu_get_betls(f, &tc->CP0_TCScheFBack);
qemu_get_sbe32s(f, &tc->CP0_Debug_tcstatus);
if (version_id >= 4) {
qemu_get_betls(f, &tc->CP0_UserLocal);
}
}
static void load_fpu(QEMUFile *f, CPUMIPSFPUContext *fpu)
{
int i;
for(i = 0; i < 32; i++)
qemu_get_be64s(f, &fpu->fpr[i].d);
qemu_get_s8s(f, &fpu->fp_status.float_detect_tininess);
qemu_get_s8s(f, &fpu->fp_status.float_rounding_mode);
qemu_get_s8s(f, &fpu->fp_status.float_exception_flags);
qemu_get_be32s(f, &fpu->fcr0);
qemu_get_be32s(f, &fpu->fcr31);
}
int cpu_load(QEMUFile *f, void *opaque, int version_id)
{
CPUMIPSState *env = opaque;
MIPSCPU *cpu = mips_env_get_cpu(env);
int i;
if (version_id < 3) {
return -EINVAL;
}
/* Load active TC */
load_tc(f, &env->active_tc, version_id);
/* Load active FPU */
load_fpu(f, &env->active_fpu);
/* Load MVP */
qemu_get_sbe32s(f, &env->mvp->CP0_MVPControl);
qemu_get_sbe32s(f, &env->mvp->CP0_MVPConf0);
qemu_get_sbe32s(f, &env->mvp->CP0_MVPConf1);
/* Load TLB */
qemu_get_be32s(f, &env->tlb->nb_tlb);
qemu_get_be32s(f, &env->tlb->tlb_in_use);
for(i = 0; i < MIPS_TLB_MAX; i++) {
uint16_t flags;
uint8_t asid;
qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].VPN);
qemu_get_be32s(f, &env->tlb->mmu.r4k.tlb[i].PageMask);
qemu_get_8s(f, &asid);
env->tlb->mmu.r4k.tlb[i].ASID = asid;
qemu_get_be16s(f, &flags);
env->tlb->mmu.r4k.tlb[i].G = (flags >> 10) & 1;
env->tlb->mmu.r4k.tlb[i].C0 = (flags >> 7) & 3;
env->tlb->mmu.r4k.tlb[i].C1 = (flags >> 4) & 3;
env->tlb->mmu.r4k.tlb[i].V0 = (flags >> 3) & 1;
env->tlb->mmu.r4k.tlb[i].V1 = (flags >> 2) & 1;
env->tlb->mmu.r4k.tlb[i].D0 = (flags >> 1) & 1;
env->tlb->mmu.r4k.tlb[i].D1 = (flags >> 0) & 1;
qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[0]);
qemu_get_betls(f, &env->tlb->mmu.r4k.tlb[i].PFN[1]);
}
/* Load CPU metastate */
qemu_get_be32s(f, &env->current_tc);
qemu_get_be32s(f, &env->current_fpu);
qemu_get_sbe32s(f, &env->error_code);
qemu_get_be32s(f, &env->hflags);
qemu_get_betls(f, &env->btarget);
qemu_get_sbe32s(f, &i);
env->bcond = i;
/* Load remaining CP1 registers */
qemu_get_sbe32s(f, &env->CP0_Index);
qemu_get_sbe32s(f, &env->CP0_Random);
qemu_get_sbe32s(f, &env->CP0_VPEControl);
qemu_get_sbe32s(f, &env->CP0_VPEConf0);
qemu_get_sbe32s(f, &env->CP0_VPEConf1);
qemu_get_betls(f, &env->CP0_YQMask);
qemu_get_betls(f, &env->CP0_VPESchedule);
qemu_get_betls(f, &env->CP0_VPEScheFBack);
qemu_get_sbe32s(f, &env->CP0_VPEOpt);
qemu_get_betls(f, &env->CP0_EntryLo0);
qemu_get_betls(f, &env->CP0_EntryLo1);
qemu_get_betls(f, &env->CP0_Context);
qemu_get_sbe32s(f, &env->CP0_PageMask);
qemu_get_sbe32s(f, &env->CP0_PageGrain);
qemu_get_sbe32s(f, &env->CP0_Wired);
qemu_get_sbe32s(f, &env->CP0_SRSConf0);
qemu_get_sbe32s(f, &env->CP0_SRSConf1);
qemu_get_sbe32s(f, &env->CP0_SRSConf2);
qemu_get_sbe32s(f, &env->CP0_SRSConf3);
qemu_get_sbe32s(f, &env->CP0_SRSConf4);
qemu_get_sbe32s(f, &env->CP0_HWREna);
qemu_get_betls(f, &env->CP0_BadVAddr);
qemu_get_sbe32s(f, &env->CP0_Count);
qemu_get_betls(f, &env->CP0_EntryHi);
qemu_get_sbe32s(f, &env->CP0_Compare);
qemu_get_sbe32s(f, &env->CP0_Status);
qemu_get_sbe32s(f, &env->CP0_IntCtl);
qemu_get_sbe32s(f, &env->CP0_SRSCtl);
qemu_get_sbe32s(f, &env->CP0_SRSMap);
qemu_get_sbe32s(f, &env->CP0_Cause);
qemu_get_betls(f, &env->CP0_EPC);
qemu_get_sbe32s(f, &env->CP0_PRid);
qemu_get_sbe32s(f, &env->CP0_EBase);
qemu_get_sbe32s(f, &env->CP0_Config0);
qemu_get_sbe32s(f, &env->CP0_Config1);
qemu_get_sbe32s(f, &env->CP0_Config2);
qemu_get_sbe32s(f, &env->CP0_Config3);
qemu_get_sbe32s(f, &env->CP0_Config6);
qemu_get_sbe32s(f, &env->CP0_Config7);
qemu_get_betls(f, &env->lladdr);
for(i = 0; i < 8; i++)
qemu_get_betls(f, &env->CP0_WatchLo[i]);
for(i = 0; i < 8; i++)
qemu_get_sbe32s(f, &env->CP0_WatchHi[i]);
qemu_get_betls(f, &env->CP0_XContext);
qemu_get_sbe32s(f, &env->CP0_Framemask);
qemu_get_sbe32s(f, &env->CP0_Debug);
qemu_get_betls(f, &env->CP0_DEPC);
qemu_get_sbe32s(f, &env->CP0_Performance0);
qemu_get_sbe32s(f, &env->CP0_TagLo);
qemu_get_sbe32s(f, &env->CP0_DataLo);
qemu_get_sbe32s(f, &env->CP0_TagHi);
qemu_get_sbe32s(f, &env->CP0_DataHi);
qemu_get_betls(f, &env->CP0_ErrorEPC);
qemu_get_sbe32s(f, &env->CP0_DESAVE);
/* Load inactive TC state */
for (i = 0; i < MIPS_SHADOW_SET_MAX; i++) {
load_tc(f, &env->tcs[i], version_id);
}
for (i = 0; i < MIPS_FPU_MAX; i++)
load_fpu(f, &env->fpus[i]);
/* XXX: ensure compatibility for halted bit ? */
tlb_flush(CPU(cpu), 1);
return 0;
}
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