> diff --git a/UefiCpuPkg/Library/MpInitLib/MpLib.c
> b/UefiCpuPkg/Library/MpInitLib/MpLib.c
> index 9a6ec5db5c..f29e66a14f 100644
> --- a/UefiCpuPkg/Library/MpInitLib/MpLib.c
> +++ b/UefiCpuPkg/Library/MpInitLib/MpLib.c
> @@ -910,9 +910,16 @@ DxeApEntryPoint (
> CPU_MP_DATA *CpuMpData
> )
> {
> - UINTN ProcessorNumber;
> + UINTN ProcessorNumber;
> + MSR_IA32_EFER_REGISTER EferMsr;
>
> GetProcessorNumber (CpuMpData, &ProcessorNumber);
> + if (CpuMpData->EnableExecuteDisableForSwitchContext) {
> + EferMsr.Uint64 = AsmReadMsr64 (MSR_IA32_EFER);
> + EferMsr.Bits.NXE = 1;
> + AsmWriteMsr64 (MSR_IA32_EFER, EferMsr.Uint64);
> + }
It helps reviewers if you document changes from one version to the next.
This code block was moved (compared to v3). Why?
take care,
Gerd
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