Re: [edk2-devel] [Patch V2 01/18] MdeModulePkg: Add gEdkiiS3MtrrSettingGuid

["duntan" <dun.tan@intel.com>]

Hi Liming,

Could you please help to review this patch?
This patch set is to simplify the X86 CPU SMM driver by removing most of S3 related logics and we want to merge it as soon as possible.

Thanks,
Dun

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of duntan
Sent: Friday, May 17, 2024 5:46 PM
To: devel@edk2.groups.io
Cc: Ni, Ray <ray.ni@intel.com>; Liming Gao <gaoliming@byosoft.com.cn>; Wu, Jiaxin <jiaxin.wu@intel.com>
Subject: [edk2-devel] [Patch V2 01/18] MdeModulePkg: Add gEdkiiS3MtrrSettingGuid

Add gEdkiiS3MtrrSettingGuid a new GUID for s3 MTRR setting. This GUID will be used to save MTRR_SETTINGS at EndOfDxe by LockBox and restore at S3 boot PEI phase for s3 usage.

Signed-off-by: Dun Tan <dun.tan@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
---
 MdeModulePkg/MdeModulePkg.dec | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index f7339f0aec..02f330a453 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -4,7 +4,7 @@
 # and libraries instances, which are used for those modules.
 #
 # Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
-# Copyright (c) 2007 - 2021, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2007 - 2024, Intel Corporation. All rights 
+reserved.<BR>
 # Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>  # (C) Copyright 2016 - 2019 Hewlett Packard Enterprise Development LP<BR>  # Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR> @@ -465,6 +465,9 @@
   gEdk2JedecSfdpSpiDxeDriverGuid  = { 0xBE71701E, 0xB63C, 0x4574, { 0x9C, 0x5C, 0x36, 0x29, 0xE8, 0xEA, 0xC4, 0x14 }}
   gEdk2JedecSfdpSpiSmmDriverGuid  = { 0x95A1E915, 0x195C, 0x477C, { 0x92, 0x6F, 0x7E, 0x24, 0x67, 0xC1, 0xB3, 0x1F }}
 
+  ## This GUID will be used to save MTRR_SETTINGS at EndOfDxe by LockBox and restore at S3 boot PEI phase for s3 usage.
+  gEdkiiS3MtrrSettingGuid = { 0xd77baa84, 0xb332, 0x4463, { 0x9f, 0x1d, 
+ 0xce, 0x81, 0x00, 0xfe, 0x7f, 0x35 }}
+
 [Ppis]
   ## Include/Ppi/FirmwareVolumeShadowPpi.h
   gEdkiiPeiFirmwareVolumeShadowPpiGuid = { 0x7dfe756c, 0xed8d, 0x4d77, {0x9e, 0xc4, 0x39, 0x9a, 0x8a, 0x81, 0x51, 0x16 } }
--
2.31.1.windows.1








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