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To: Jeff Fan <jeff.fan@intel.com>, edk2-devel@ml01.01.org
References: <20161125060312.27932-1-jeff.fan@intel.com>
 <20161125060312.27932-2-jeff.fan@intel.com>
Cc: Feng Tian <feng.tian@intel.com>,
 Michael D Kinney <michael.d.kinney@intel.com>
From: Laszlo Ersek <lersek@redhat.com>
Message-ID: <6a2975e2-1e13-380a-b6d1-c29f40b5bc31@redhat.com>
Date: Fri, 25 Nov 2016 11:44:11 +0100
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 (mx1.redhat.com [10.5.110.27]); Fri, 25 Nov 2016 10:44:13 +0000 (UTC)
Subject: Re: [PATCH v2 1/5] UefiCpuPkg/DxeMpLib: Get safe AP loop handler from global variable
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On 11/25/16 07:03, Jeff Fan wrote:
> AP loop function is already saved into global variable, needn't to get it from
> AP function parameter.
> 
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Feng Tian <feng.tian@intel.com>
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Jeff Fan <jeff.fan@intel.com>
> ---
>  UefiCpuPkg/Library/MpInitLib/DxeMpLib.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
> index 7f3900b..a0d5eeb 100644
> --- a/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
> +++ b/UefiCpuPkg/Library/MpInitLib/DxeMpLib.c
> @@ -244,7 +244,7 @@ RelocateApLoop (
>  
>    CpuMpData    = GetCpuMpData ();
>    MwaitSupport = IsMwaitSupport ();
> -  AsmRelocateApLoopFunc = (ASM_RELOCATE_AP_LOOP) (UINTN) Buffer;
> +  AsmRelocateApLoopFunc = (ASM_RELOCATE_AP_LOOP) (UINTN) mReservedApLoopFunc;
>    AsmRelocateApLoopFunc (MwaitSupport, CpuMpData->ApTargetCState, CpuMpData->PmCodeSegment);
>    //
>    // It should never reach here
> @@ -273,7 +273,7 @@ MpInitChangeApLoopCallback (
>    CpuMpData->SaveRestoreFlag = TRUE;
>    CpuMpData->PmCodeSegment = GetProtectedModeCS ();
>    CpuMpData->ApLoopMode = PcdGet8 (PcdCpuApLoopMode);
> -  WakeUpAP (CpuMpData, TRUE, 0, RelocateApLoop, mReservedApLoopFunc);
> +  WakeUpAP (CpuMpData, TRUE, 0, RelocateApLoop, NULL);
>    DEBUG ((DEBUG_INFO, "%a() done!\n", __FUNCTION__));
>  }
>  
> 

Reviewed-by: Laszlo Ersek <lersek@redhat.com>