diff --git a/UefiCpuPkg/Library/MpInitLib/Microcode.c b/UefiCpuPkg/Library/MpInitLib/Microcode.c
index 982995be7d..9d61da6c23 100644
--- a/UefiCpuPkg/Library/MpInitLib/Microcode.c
+++ b/UefiCpuPkg/Library/MpInitLib/Microcode.c
@@ -1,7 +1,7 @@
/** @file
Implementation of loading microcode on processors.
- Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.
+ Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@@ -42,8 +42,6 @@ MicrocodeDetect (
IN CPU_MP_DATA *CpuMpData
)
{
- UINT64 MicrocodePatchAddress;
- UINT64 MicrocodePatchRegionSize;
UINT32 ExtendedTableLength;
UINT32 ExtendedTableCount;
CPU_MICROCODE_EXTENDED_TABLE *ExtendedTable;
@@ -61,9 +59,7 @@ MicrocodeDetect (
VOID *MicrocodeData;
MSR_IA32_PLATFORM_ID_REGISTER PlatformIdMsr;
- MicrocodePatchAddress = PcdGet64 (PcdCpuMicrocodePatchAddress);
- MicrocodePatchRegionSize = PcdGet64 (PcdCpuMicrocodePatchRegionSize);
- if (MicrocodePatchRegionSize == 0) {
+ if (CpuMpData->MicrocodePatchRegionSize == 0) {
//
// There is no microcode patches
//
@@ -93,8 +89,8 @@ MicrocodeDetect (
LatestRevision = 0;
MicrocodeData = NULL;
- MicrocodeEnd = (UINTN) (MicrocodePatchAddress + MicrocodePatchRegionSize);
- MicrocodeEntryPoint = (CPU_MICROCODE_HEADER *) (UINTN) MicrocodePatchAddress;
+ MicrocodeEnd = (UINTN) (CpuMpData->MicrocodePatchAddress + CpuMpData->MicrocodePatchRegionSize);
+ MicrocodeEntryPoint = (CPU_MICROCODE_HEADER *) (UINTN) CpuMpData->MicrocodePatchAddress;
do {
//
// Check if the microcode is for the Cpu and the version is newer
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c b/UefiCpuPkg/Library/MpInitLib/MpLib.c
index 924b9097f2..f3ee6d4436 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
@@ -1458,6 +1458,8 @@ MpInitLibInitialize (
CpuMpData->SwitchBspFlag = FALSE;
CpuMpData->CpuData = (CPU_AP_DATA *) (CpuMpData + 1);
CpuMpData->CpuInfoInHob = (UINT64) (UINTN) (CpuMpData->CpuData + MaxLogicalProcessorNumber);
+ CpuMpData->MicrocodePatchAddress = PcdGet64 (PcdCpuMicrocodePatchAddress);
+ CpuMpData->MicrocodePatchRegionSize = PcdGet64 (PcdCpuMicrocodePatchRegionSize);
InitializeSpinLock(&CpuMpData->MpLock);
//
// Save BSP's Control registers to APs
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h b/UefiCpuPkg/Library/MpInitLib/MpLib.h
index 19defdaf4b..84ae24f88d 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.h
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h
@@ -233,6 +233,8 @@ struct _CPU_MP_DATA {
UINT8 Vector;
BOOLEAN PeriodicMode;
BOOLEAN TimerInterruptState;
+ UINT64 MicrocodePatchAddress;
+ UINT64 MicrocodePatchRegionSize;
};
extern EFI_GUID mCpuInitMpLibHobGuid;