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[edk2-devel] [PATCH v4 1/6] UefiCpuPkg/MpInitLib: Collect processors' CPUID & Platform ID info

Wu, Hao A posted 6 patches 6 years, 1 month ago
There is a newer version of this series
[edk2-devel] [PATCH v4 1/6] UefiCpuPkg/MpInitLib: Collect processors' CPUID & Platform ID info
Posted by Wu, Hao A 6 years, 1 month ago 
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>
---
 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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Re: [edk2-devel] [PATCH v4 1/6] UefiCpuPkg/MpInitLib: Collect processors' CPUID & Platform ID info
Posted by Dong, Eric 6 years, 1 month ago 
Reviewed-by: Eric Dong <eric.dong@intel.com>

> -----Original Message-----
> From: Wu, Hao A
> Sent: Friday, December 27, 2019 3:32 PM
> To: devel@edk2.groups.io
> Cc: Wu, Hao A <hao.a.wu@intel.com>; Dong, Eric <eric.dong@intel.com>; Ni,
> Ray <ray.ni@intel.com>; Laszlo Ersek <lersek@redhat.com>; Zeng, Star
> <star.zeng@intel.com>; Fu, Siyuan <siyuan.fu@intel.com>; Kinney, Michael
> D <michael.d.kinney@intel.com>
> Subject: [PATCH v4 1/6] 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>
> ---
>  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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