Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <[email protected]>
CC: Feng Tian <[email protected]>
---
UefiCpuPkg/CpuMpPei/PeiMpServices.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/UefiCpuPkg/CpuMpPei/PeiMpServices.c
b/UefiCpuPkg/CpuMpPei/PeiMpServices.c
index 503778f..6e69012 100644
--- a/UefiCpuPkg/CpuMpPei/PeiMpServices.c
+++ b/UefiCpuPkg/CpuMpPei/PeiMpServices.c
@@ -804,6 +804,16 @@ PeiSwitchBSP (
ApicBaseMsr.Uint64 = AsmReadMsr64 (MSR_IA32_APIC_BASE_ADDRESS);
ApicBaseMsr.Bits.Bsp = 1;
AsmWriteMsr64 (MSR_IA32_APIC_BASE_ADDRESS, ApicBaseMsr.Uint64);
+ //
+ // Set old BSP enable state
+ //
+ if (!EnableOldBSP) {
+ PeiCpuMpData->CpuData[PeiCpuMpData->BspNumber].State = CpuStateDisabled;
+ }
+ //
+ // Save new BSP number
+ //
+ PeiCpuMpData->BspNumber = ProcessorNumber;
return EFI_SUCCESS;
}
--
1.9.5.msysgit.0
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