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UefiCpuPkg/MpInitLib: Collect processors' CPUID & Platform ID info 

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.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Siyuan Fu <siyuan.fu@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: Hao A Wu <hao.a.wu@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
This commit is contained in:
Hao A Wu 2019-12-19 13:36:24 +08:00 committed by mergify[bot]
parent a5abd9cc2c
commit 999463c865
2 changed files with 15 additions and 1 deletions
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14
UefiCpuPkg/Library/MpInitLib/MpLib.c
View File

@ -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
UefiCpuPkg/Library/MpInitLib/MpLib.h
View File

@ -122,6 +122,8 @@ typedef struct {
UINT64 CurrentTime;
UINT64 TotalTime;
EFI_EVENT WaitEvent;
UINT32 ProcessorSignature;
UINT8 PlatformId;
} CPU_AP_DATA;
//