November 30, 2016 5:54 AM
> To: Yao, Jiewen <jiewen@intel.com
> <mailto:jiewen@intel.com>>; edk2-de...@ml01.01.org
> <mailto:edk2-de...@ml01.01.org>
> Cc: Kinney, Michael D <michael.d.kin...@intel.com
> <mailto:michael.d.kin...@intel.com>>; Fan, Jeff <je
edk2-de...@ml01.01.org<mailto:edk2-de...@ml01.01.org>
Cc: Kinney, Michael D
<michael.d.kin...@intel.com<mailto:michael.d.kin...@intel.com>>; Fan, Jeff
<jeff@intel.com<mailto:jeff@intel.com>>
Subject: Re: [edk2] [PATCH] UefiCpuPkg:PiSmmCpu: Set correct attribute on s
com>; Fan, Jeff
<jeff@intel.com>
Subject: Re: [edk2] [PATCH] UefiCpuPkg:PiSmmCpu: Set correct attribute on split.
Comments below:
From: Laszlo Ersek [mailto:ler...@redhat.com]
Sent: Wednesday, November 30, 2016 5:54 AM
To: Yao, Jiewen <jiewen@intel.com<mailto:jiewen..
Re: [edk2] [PATCH] UefiCpuPkg:PiSmmCpu: Set correct attribute on split.
On 11/29/16 08:39, Jiewen Yao wrote:
> PiSmmCpu driver may split page for page attribute request.
> Current logic will propagate the super page attribute attribute.
> However, it might be wrong because we cannot clear protection
On 11/29/16 08:39, Jiewen Yao wrote:
> PiSmmCpu driver may split page for page attribute request.
> Current logic will propagate the super page attribute attribute.
> However, it might be wrong because we cannot clear protection
> without touch super page attribute.
>
> We should always clear
PiSmmCpu driver may split page for page attribute request.
Current logic will propagate the super page attribute attribute.
However, it might be wrong because we cannot clear protection
without touch super page attribute.
We should always clear protection on super page and set
protection on end
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