REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2429
This commit will collect the CPUID and Platform ID information for each
processor within system. They will be stored in the CPU_AP_DATA structure.
These information will be used in the next commit to decide whether a
microcode patch will be loaded into memory.
Cc: Eric Dong <eric.d...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
Cc: Star Zeng <star.z...@intel.com>
Cc: Siyuan Fu <siyuan...@intel.com>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Signed-off-by: Hao A Wu <hao.a...@intel.com>
Reviewed-by: Ray Ni <ray...@intel.com>
---
UefiCpuPkg/Library/MpInitLib/MpLib.h | 2 ++
UefiCpuPkg/Library/MpInitLib/MpLib.c | 14 +++++++++++++-
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.h
b/UefiCpuPkg/Library/MpInitLib/MpLib.h
index 8fa07b12c5..4440dc2701 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.h
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.h
@@ -122,6 +122,8 @@ typedef struct {
UINT64 CurrentTime;
UINT64 TotalTime;
EFI_EVENT WaitEvent;
+ UINT32 ProcessorSignature;
+ UINT8 PlatformId;
} CPU_AP_DATA;
//
diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c
b/UefiCpuPkg/Library/MpInitLib/MpLib.c
index d32adf0780..d5077e080e 100644
--- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
+++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
@@ -548,7 +548,8 @@ InitializeApData (
IN UINT64 ApTopOfStack
)
{
- CPU_INFO_IN_HOB *CpuInfoInHob;
+ CPU_INFO_IN_HOB *CpuInfoInHob;
+ MSR_IA32_PLATFORM_ID_REGISTER PlatformIdMsr;
CpuInfoInHob = (CPU_INFO_IN_HOB *) (UINTN) CpuMpData->CpuInfoInHob;
CpuInfoInHob[ProcessorNumber].InitialApicId = GetInitialApicId ();
@@ -559,6 +560,17 @@ InitializeApData (
CpuMpData->CpuData[ProcessorNumber].Waiting = FALSE;
CpuMpData->CpuData[ProcessorNumber].CpuHealthy = (BistData == 0) ? TRUE :
FALSE;
+ PlatformIdMsr.Uint64 = AsmReadMsr64 (MSR_IA32_PLATFORM_ID);
+ CpuMpData->CpuData[ProcessorNumber].PlatformId = (UINT8)
PlatformIdMsr.Bits.PlatformId;
+
+ AsmCpuid (
+ CPUID_VERSION_INFO,
+ &CpuMpData->CpuData[ProcessorNumber].ProcessorSignature,
+ NULL,
+ NULL,
+ NULL
+ );
+
InitializeSpinLock(&CpuMpData->CpuData[ProcessorNumber].ApLock);
SetApState (&CpuMpData->CpuData[ProcessorNumber], CpuStateIdle);
}
--
2.12.0.windows.1
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