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| author | Jian J Wang <jian.j.wang@intel.com> | 2017-12-07 20:17:49 +0800 |
|---|---|---|
| committer | Star Zeng <star.zeng@intel.com> | 2017-12-08 14:38:52 +0800 |
| commit | 50255363cbf0555e0f09adfb327189bd7a4be9da (patch) | |
| tree | 637c90684f51821b0707fb557b26fb202855d201 /MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | |
| parent | a8ab14d355072241915d87de86770c0fde92cba9 (diff) | |
| download | edk2-50255363cbf0555e0f09adfb327189bd7a4be9da.tar.gz edk2-50255363cbf0555e0f09adfb327189bd7a4be9da.tar.bz2 edk2-50255363cbf0555e0f09adfb327189bd7a4be9da.zip | |
MdeModulePkg/DxeIpl: Enable paging for Stack Guard
Stack guard feature makes use of paging mechanism to monitor if there's a
stack overflow occurred during boot.
This patch will check setting of PCD PcdCpuStackGuard. If it's TRUE, DxeIpl
will setup page table and set the page at which the stack base locates to be
NOT PRESENT. If stack is used up and memory access cross into the last page
of it, #PF exception will be triggered.
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Suggested-by: Ayellet Wolman <ayellet.wolman@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Jeff Fan <vanjeff_919@hotmail.com>
Reviewed-by: Jiewen.yao@intel.com
Diffstat (limited to 'MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf')
| -rw-r--r-- | MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf index a1b8748432..ba1d9c6b05 100644 --- a/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf +++ b/MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf @@ -49,7 +49,7 @@ [Sources.X64]
X64/VirtualMemory.h
X64/VirtualMemory.c
- X64/DxeLoadFunc.c
+ X64/DxeLoadFunc.c
[Sources.IPF]
Ipf/DxeLoadFunc.c
@@ -117,6 +117,7 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdPteMemoryEncryptionAddressOrMask ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdNullPointerDetectionPropertyMask ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard ## CONSUMES
[Pcd.IA32,Pcd.X64,Pcd.ARM,Pcd.AARCH64]
gEfiMdeModulePkgTokenSpaceGuid.PcdSetNxForStack ## SOMETIMES_CONSUMES
@@ -132,7 +133,7 @@ #
# [Hob]
# MEMORY_ALLOCATION ## SOMETIMES_PRODUCES # MEMORY_ALLOCATION_MODULE for DxeCore
-# MEMORY_ALLOCATION ## SOMETIMES_PRODUCES # New Stack HoB
+# MEMORY_ALLOCATION ## SOMETIMES_PRODUCES # New Stack HoB
# MEMORY_ALLOCATION ## SOMETIMES_PRODUCES # Old Stack HOB
#
# [Hob.IPF]
|