Re: [edk2-devel] MdeModulePkg: Fix MAT SplitRecord() Logic introduce one bug and will cause SUT reset when boot to windows

["Huang, Yanbo" <yanbo.huang@intel.com>]

The PCD PcdPlatformEfiRtCodeMemorySize is used in https://github.com/tianocore/edk2-platforms/blob/master/Platform/Intel/MinPlatformPkg/PlatformInit/PlatformInitPei/PlatformInitPreMem.c
This PCD seems defined the size allocated for run time services code, and the similar PCD is PcdPlatformEfiRtDataMemorySize, seems defined the size allocated for run time services data.
I guess dandan means if the runtime services code size is small than the PCD defined, then the " Extra EfiRuntimeServicesCode regions which aren't part of loaded runtime images." size should be FixedPcdGet32 (PcdPlatformEfiRtCodeMemorySize) - the actual runtime image code size?

Best Regards,
Yanbo Huang
-----Original Message-----
From: Ard Biesheuvel <ardb@kernel.org> 
Sent: Thursday, April 18, 2024 9:18 PM
To: devel@edk2.groups.io; Bi, Dandan <dandan.bi@intel.com>
Cc: Taylor Beebe <taylor.d.beebe@gmail.com>; Huang, Yanbo <yanbo.huang@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>; Zhou, Jianfeng <jianfeng.zhou@intel.com>
Subject: Re: [edk2-devel] MdeModulePkg: Fix MAT SplitRecord() Logic introduce one bug and will cause SUT reset when boot to windows

Hello Dandan,

On Thu, 18 Apr 2024 at 15:03, Dandan Bi <dandan.bi@intel.com> wrote:
>
> Hi Taylor,
>
>
>
> >>Extra EfiRuntimeServicesCode regions which aren't part of loaded runtime images.
>
> This may be related to the original size of EfiRuntimeServicesCode in memory map, and the size can be configured via PcdPlatformEfiRtCodeMemorySize.
>

That PCD does not exist in EDK2. Can you explain what it does on your platform?


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