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-rw-r--r--UefiCpuPkg/Library/MpInitLib/MpLib.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c
index 78eeaa6de2..69c53c6228 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
@@ -1258,7 +1258,6 @@ WakeUpAP (
AllocateResetVectorBelow1Mb (CpuMpData);
AllocateSevEsAPMemory (CpuMpData);
FillExchangeInfoData (CpuMpData);
- SaveLocalApicTimerSetting (CpuMpData);
}
if (CpuMpData->ApLoopMode == ApInMwaitLoop) {
@@ -2236,6 +2235,7 @@ MpInitLibInitialize (
// Enable the local APIC for Virtual Wire Mode.
//
ProgramVirtualWireMode ();
+ SaveLocalApicTimerSetting (CpuMpData);
if (FirstMpHandOff == NULL) {
if (MaxLogicalProcessorNumber > 1) {
@@ -2612,6 +2612,11 @@ SwitchBSPWorker (
AsmWriteMsr64 (MSR_IA32_APIC_BASE, ApicBaseMsr.Uint64);
//
+ // Save BSP's local APIC timer setting.
+ //
+ SaveLocalApicTimerSetting (CpuMpData);
+
+ //
// Need to wakeUp AP (future BSP).
//
WakeUpAP (CpuMpData, FALSE, ProcessorNumber, FutureBSPProc, CpuMpData, TRUE);