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MdeModulePkg DxeIpl: Add stack NX support

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This feature is added for UEFI spec that says
"Stack may be marked as non-executable in identity mapped page tables".
A PCD PcdSetNxForStack is added to turn on/off this feature, and it is
FALSE by default.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: "Yao, Jiewen" <Jiewen.yao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18166 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng
2015-08-05 12:45:21 +00:00
committed by lersek
parent edaea0e7bf
commit 5630cdfe9f
7 changed files with 392 additions and 38 deletions
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3
MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
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@@ -5,7 +5,7 @@
# PPI to discover and dispatch the DXE Foundation and components that are
# needed to run the DXE Foundation.
#
# Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
@@ -104,6 +104,7 @@
[Pcd.IA32,Pcd.X64]
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable ## SOMETIMES_CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack ## SOMETIMES_CONSUMES
[Depex]
gEfiPeiMemoryDiscoveredPpiGuid AND gEfiPeiLoadFilePpiGuid AND gEfiPeiMasterBootModePpiGuid