/**
AP initialization after SMBASE relocation in the S3 boot path.
**/
VOID
MPRendezvousProcedure (
VOID
)
{
CPU_REGISTER_TABLE *RegisterTableList;
UINT32 InitApicId;
UINTN Index;
ProgramVirtualWireMode ();
DisableLvtInterrupts ();
RegisterTableList = (CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.RegisterTable;
InitApicId = GetInitialApicId ();
for (Index = 0; Index < mAcpiCpuData.NumberOfCpus; Index++) {
if (RegisterTableList[Index].InitialApicId == InitApicId) {
SetProcessorRegister (&RegisterTableList[Index]);
break;
}
}
//
// Count down the number with lock mechanism.
//
InterlockedDecrement (&mNumberToFinish);
}
/**
AP initialization before then after SMBASE relocation in the S3 boot path.
**/
VOID
InitializeAp (
VOID
)
{
UINTN TopOfStack;
UINT8 Stack[128];
LoadMtrrData (mAcpiCpuData.MtrrTable);
SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.PreSmmInitRegisterTable, mAcpiCpuData.NumberOfCpus);
//
// Count down the number with lock mechanism.
//
InterlockedDecrement (&mNumberToFinish);
//
// Wait for BSP to signal SMM Base relocation done.
//
while (!mInitApsAfterSmmBaseReloc) {
CpuPause ();
}
ProgramVirtualWireMode ();
DisableLvtInterrupts ();
SetProcessorRegister ((CPU_REGISTER_TABLE *) (UINTN) mAcpiCpuData.RegisterTable, mAcpiCpuData.NumberOfCpus);
//
// Place AP into the safe code, count down the number with lock mechanism in the safe code.
//
TopOfStack = (UINTN) Stack + sizeof (Stack);
TopOfStack &= ~(UINTN) (CPU_STACK_ALIGNMENT - 1);
CopyMem ((VOID *) (UINTN) mApHltLoopCode, mApHltLoopCodeTemplate, sizeof (mApHltLoopCodeTemplate));
TransferApToSafeState ((UINTN)mApHltLoopCode, TopOfStack, (UINTN)&mNumberToFinish);
}
