diff options
| -rw-r--r-- | UefiCpuPkg/CpuMpPei/CpuMpPei.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c index 53af9489b2..ca48613502 100644 --- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c +++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c @@ -259,6 +259,11 @@ ApCFunction ( // Execute AP function if AP is not disabled
//
GetProcessorNumber (PeiCpuMpData, &ProcessorNumber);
+ //
+ // Restore AP's volatile registers saved
+ //
+ RestoreVolatileRegisters (&PeiCpuMpData->CpuData[ProcessorNumber].VolatileRegisters, TRUE);
+
if ((PeiCpuMpData->CpuData[ProcessorNumber].State != CpuStateDisabled) &&
(PeiCpuMpData->ApFunction != 0)) {
PeiCpuMpData->CpuData[ProcessorNumber].State = CpuStateBusy;
@@ -273,6 +278,11 @@ ApCFunction ( //
InterlockedIncrement ((UINT32 *)&PeiCpuMpData->FinishedCount);
+ //
+ // Save AP volatile registers
+ //
+ SaveVolatileRegisters (&PeiCpuMpData->CpuData[ProcessorNumber].VolatileRegisters);
+
AsmCliHltLoop ();
}
|