Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Chen Fan <[email protected]>
---
UefiCpuPkg/CpuDxe/CpuMp.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/UefiCpuPkg/CpuDxe/CpuMp.c b/UefiCpuPkg/CpuDxe/CpuMp.c
index 96513e8..d657152 100644
--- a/UefiCpuPkg/CpuDxe/CpuMp.c
+++ b/UefiCpuPkg/CpuDxe/CpuMp.c
@@ -25,7 +25,7 @@ VOID *mCommonStack = 0;
VOID *mTopOfApCommonStack = 0;
VOID *mApStackStart = 0;
-BOOLEAN mAPsAlreadyInitFinished = FALSE;
+volatile BOOLEAN mAPsAlreadyInitFinished = FALSE;
volatile BOOLEAN mStopCheckAllAPsStatus = TRUE;
EFI_MP_SERVICES_PROTOCOL mMpServicesTemplate = {
@@ -1135,11 +1135,15 @@ ProcessorToIdleState (
EFI_AP_PROCEDURE Procedure;
VOID *ProcedureArgument;
+ AsmApDoneWithCommonStack ();
+
+ while (!mAPsAlreadyInitFinished) {
+ CpuPause ();
+ }
+
WhoAmI (&mMpServicesTemplate, &ProcessorNumber);
CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
- AsmApDoneWithCommonStack ();
-
//
// Avoid forcibly reset AP caused the AP State is not updated.
//
@@ -1486,6 +1490,11 @@ InitializeMpSupport (
return;
}
+ mMpSystemData.CpuDatas = ReallocatePool (
+ sizeof (CPU_DATA_BLOCK) *
gMaxLogicalProcessorNumber,
+ sizeof (CPU_DATA_BLOCK) *
mMpSystemData.NumberOfProcessors,
+ mMpSystemData.CpuDatas);
+
mAPsAlreadyInitFinished = TRUE;
if (mMpSystemData.NumberOfProcessors < gMaxLogicalProcessorNumber) {
--
1.9.3
------------------------------------------------------------------------------
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