/**
* Hyper-V state-save operation.
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
* @param pSSM Pointer to the SSM handle.
*/
VMMR3_INT_DECL(int) gimR3HvSave(PVM pVM, PSSMHANDLE pSSM)
{
PCGIMHV pcHv = &pVM->gim.s.u.Hv;
/*
* Save the Hyper-V SSM version.
*/
SSMR3PutU32(pSSM, GIM_HV_SAVED_STATE_VERSION);
/*
* Save per-VM MSRs.
*/
SSMR3PutU64(pSSM, pcHv->u64GuestOsIdMsr);
SSMR3PutU64(pSSM, pcHv->u64HypercallMsr);
SSMR3PutU64(pSSM, pcHv->u64TscPageMsr);
/*
* Save Hyper-V features / capabilities.
*/
SSMR3PutU32(pSSM, pcHv->uBaseFeat);
SSMR3PutU32(pSSM, pcHv->uPartFlags);
SSMR3PutU32(pSSM, pcHv->uPowMgmtFeat);
SSMR3PutU32(pSSM, pcHv->uMiscFeat);
SSMR3PutU32(pSSM, pcHv->uHyperHints);
SSMR3PutU32(pSSM, pcHv->uHyperCaps);
/*
* Save the Hypercall region.
*/
PCGIMMMIO2REGION pcRegion = &pcHv->aMmio2Regions[GIM_HV_HYPERCALL_PAGE_REGION_IDX];
SSMR3PutU8(pSSM, pcRegion->iRegion);
SSMR3PutBool(pSSM, pcRegion->fRCMapping);
SSMR3PutU32(pSSM, pcRegion->cbRegion);
SSMR3PutGCPhys(pSSM, pcRegion->GCPhysPage);
SSMR3PutStrZ(pSSM, pcRegion->szDescription);
/*
* Save the reference TSC region.
*/
pcRegion = &pcHv->aMmio2Regions[GIM_HV_REF_TSC_PAGE_REGION_IDX];
SSMR3PutU8(pSSM, pcRegion->iRegion);
SSMR3PutBool(pSSM, pcRegion->fRCMapping);
SSMR3PutU32(pSSM, pcRegion->cbRegion);
SSMR3PutGCPhys(pSSM, pcRegion->GCPhysPage);
SSMR3PutStrZ(pSSM, pcRegion->szDescription);
/* Save the TSC sequence so we can bump it on restore (as the CPU frequency/offset may change). */
uint32_t uTscSequence = 0;
if ( pcRegion->fMapped
&& MSR_GIM_HV_REF_TSC_IS_ENABLED(pcHv->u64TscPageMsr))
{
PCGIMHVREFTSC pcRefTsc = (PCGIMHVREFTSC)pcRegion->pvPageR3;
uTscSequence = pcRefTsc->u32TscSequence;
}
return SSMR3PutU32(pSSM, uTscSequence);
}
/**
* KVM state-save operation.
*
* @returns VBox status code.
* @param pVM Pointer to the VM.
* @param pSSM Pointer to the SSM handle.
*/
VMMR3_INT_DECL(int) gimR3KvmSave(PVM pVM, PSSMHANDLE pSSM)
{
PCGIMKVM pcKvm = &pVM->gim.s.u.Kvm;
/*
* Save the KVM SSM version.
*/
SSMR3PutU32(pSSM, GIM_KVM_SAVED_STATE_VERSION);
/*
* Save per-VCPU data.
*/
for (uint32_t i = 0; i < pVM->cCpus; i++)
{
PCGIMKVMCPU pcKvmCpu = &pVM->aCpus[i].gim.s.u.KvmCpu;
/* Guest may alter flags (namely GIM_KVM_SYSTEM_TIME_FLAGS_GUEST_PAUSED bit). So re-read them from guest-memory. */
GIMKVMSYSTEMTIME SystemTime;
RT_ZERO(SystemTime);
if (MSR_GIM_KVM_SYSTEM_TIME_IS_ENABLED(pcKvmCpu->u64SystemTimeMsr))
{
int rc = PGMPhysSimpleReadGCPhys(pVM, &SystemTime, pcKvmCpu->GCPhysSystemTime, sizeof(GIMKVMSYSTEMTIME));
AssertRCReturn(rc, rc);
}
SSMR3PutU64(pSSM, pcKvmCpu->u64SystemTimeMsr);
SSMR3PutU64(pSSM, pcKvmCpu->uTsc);
SSMR3PutU64(pSSM, pcKvmCpu->uVirtNanoTS);
SSMR3PutGCPhys(pSSM, pcKvmCpu->GCPhysSystemTime);
SSMR3PutU32(pSSM, pcKvmCpu->u32SystemTimeVersion);
SSMR3PutU8(pSSM, SystemTime.fFlags);
}
/*
* Save per-VM data.
*/
SSMR3PutU64(pSSM, pcKvm->u64WallClockMsr);
return SSMR3PutU32(pSSM, pcKvm->uBaseFeat);
}