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UefiCpuPkg/CpuMpPei: Sync BSP's CRx to APs when initialization 

Save BSP's volatile register and sync CRx register to APs when AP 1st wake up.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@Intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19088 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan 2015-12-02 00:43:19 +00:00 committed by vanjeff
parent 10c6c206da
commit 22cfe73a12
1 changed files with 5 additions and 0 deletions
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5
UefiCpuPkg/CpuMpPei/CpuMpPei.c
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@ -230,6 +230,10 @@ ApCFunction (
if (PeiCpuMpData->InitFlag) { if (PeiCpuMpData->InitFlag) {
ProcessorNumber = NumApsExecuting; ProcessorNumber = NumApsExecuting;
// //
// Sync BSP's Control registers to APs
//
RestoreVolatileRegisters (&PeiCpuMpData->CpuData[0].VolatileRegisters, FALSE);
//
// This is first time AP wakeup, get BIST information from AP stack // This is first time AP wakeup, get BIST information from AP stack
// //
BistData = *(UINTN *) (PeiCpuMpData->Buffer + ProcessorNumber * PeiCpuMpData->CpuApStackSize - sizeof (UINTN)); BistData = *(UINTN *) (PeiCpuMpData->Buffer + ProcessorNumber * PeiCpuMpData->CpuApStackSize - sizeof (UINTN));
@ -560,6 +564,7 @@ PrepareAPStartupVector (
PeiCpuMpData->CpuData[0].Health.Uint32 = 0; PeiCpuMpData->CpuData[0].Health.Uint32 = 0;
PeiCpuMpData->EndOfPeiFlag = FALSE; PeiCpuMpData->EndOfPeiFlag = FALSE;
InitializeSpinLock(&PeiCpuMpData->MpLock); InitializeSpinLock(&PeiCpuMpData->MpLock);
SaveVolatileRegisters (&PeiCpuMpData->CpuData[0].VolatileRegisters);
CopyMem (&PeiCpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP)); CopyMem (&PeiCpuMpData->AddressMap, &AddressMap, sizeof (MP_ASSEMBLY_ADDRESS_MAP));
// //