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Subject: Re: [edk2-devel] [PATCH v3 0/2] UefiCpuPkg/MpInitLib: Fix ASSERT in AP procedure
To: edk2-devel-groups-io <devel@edk2.groups.io>, eric.dong@intel.com
Cc: Ray Ni <ray.ni@intel.com>, Chandana Kumar <chandana.c.kumar@intel.com>
References: <20200424084716.877-1-eric.dong@intel.com>
From: "Laszlo Ersek" <lersek@redhat.com>
Message-ID: <7eae289b-d796-0582-25cf-937c1cc98751@redhat.com>
Date: Tue, 28 Apr 2020 23:56:26 +0200
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On 04/24/20 10:47, Dong, Eric wrote:
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2683
>  
> This patch serial used to fix an ASSERT issue. Because AP can't find
> the CpuMpData through IDT, it raised the ASSERT.
> 
> V3:
> 1. Remove invalid save Volatile Registers process. Refine restore
>    Volatile Registers process.
> 
> V2: 
> 1. Enhance code comments.
> 2. Enhance code to remove CpuMpData->ApLoopMode == ApInHltLoop check.
>  
> Cc: Ray Ni <ray.ni@intel.com> 
> Cc: Laszlo Ersek <lersek@redhat.com> 
> Cc: Chandana Kumar <chandana.c.kumar@intel.com> 
> 
> 
> Eric Dong (2):
>   UefiCpuPkg/MpInitLib: Restore IDT context for APs.
>   UefiCpuPkg/MpInitLib: Avoid ApInitReconfig in PEI.
> 
>  UefiCpuPkg/Library/MpInitLib/MpLib.c | 47 ++++++++++++++++++++--------
>  1 file changed, 34 insertions(+), 13 deletions(-)
> 

I plan to regression-test this series with OVMF tomorrow. Thanks for
your patience!

Laszlo