Reviewed-by: Ray Ni <ray...@intel.com>
Thanks,
Ray
> -----Original Message-----
> From: Xie, Yuanhao <yuanhao....@intel.com>
> Sent: Wednesday, November 22, 2023 2:09 PM
> To: devel@edk2.groups.io
> Cc: Xie, Yuanhao <yuanhao....@intel.com>; Ni, Ray <ray...@intel.com>;
> Dong, Eric <eric.d...@intel.com>; Kumar, Rahul R
> <rahul.r.ku...@intel.com>; Tom Lendacky <thomas.lenda...@amd.com>;
> Laszlo Ersek <ler...@redhat.com>
> Subject: [Patch V3 2/3] UefiCpuPkg/MpInitLib: Store MTRRs settings only
> when CpuCount>1
>
> Store BSP's MTRR setting only when CpuCount>1.
>
> Cc: Ray Ni <ray...@intel.com>
> Cc: Eric Dong <eric.d...@intel.com>
> Cc: Rahul Kumar <rahul1.ku...@intel.com>
> Cc: Tom Lendacky <thomas.lenda...@amd.com>
> Cc: Laszlo Ersek <ler...@redhat.com>
> Signed-off-by: Yuanhao Xie <yuanhao....@intel.com>
> ---
> UefiCpuPkg/Library/MpInitLib/MpLib.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c
> b/UefiCpuPkg/Library/MpInitLib/MpLib.c
> index c26a17e1db..538095d3bb 100644
> --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
> +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
> @@ -2243,15 +2243,14 @@ MpInitLibInitialize (
> MicrocodeDetect (CpuMpData, CpuMpData->BspNumber);
> }
>
> - //
> - // Store BSP's MTRR setting
> - //
> - MtrrGetAllMtrrs (&CpuMpData->MtrrTable);
> -
> //
> // Wakeup APs to do some AP initialize sync (MTRR and/or Microcode).
> //
> if (CpuMpData->CpuCount > 1) {
> + //
> + // Store BSP's MTRR setting
> + //
> + MtrrGetAllMtrrs (&CpuMpData->MtrrTable);
> if (MpHandOff != NULL) {
> //
> // Only needs to use this flag for DXE phase to update the wake up
> --
> 2.39.1.windows.1
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