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MdeModulePkg/metafile: Add PCD PcdCpuStackGuard

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PcdCpuStackGuard is introduced to enable/disable Stack Guard feature.
Its value is FALSE by default. This feature is suggested to be enabled
only if the cpu driver and CpuExceptionHandlerLib have supported stack
switch for the processor used in platform. Otherwise the exception dump
message won't be printed out when there's a stack overflow happened.

Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@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
This commit is contained in:
Jian J Wang
2017-10-12 12:28:47 +08:00
committed by Star Zeng
parent 621d1f45ad
commit 448d014b73
2 changed files with 14 additions and 0 deletions
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7
MdeModulePkg/MdeModulePkg.dec
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@@ -949,6 +949,13 @@
# @Prompt The Heap Guard feature mask
gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPropertyMask|0x0|UINT8|0x30001054
## Indicates if UEFI Stack Guard will be enabled.
# If enabled, stack overflow in UEFI can be caught, preventing chaotic consequences.<BR><BR>
# TRUE - UEFI Stack Guard will be enabled.<BR>
# FALSE - UEFI Stack Guard will be disabled.<BR>
# @Prompt Enable UEFI Stack Guard.
gEfiMdeModulePkgTokenSpaceGuid.PcdCpuStackGuard|FALSE|BOOLEAN|0x30001055
[PcdsFixedAtBuild, PcdsPatchableInModule]
## Dynamic type PCD can be registered callback function for Pcd setting action.
# PcdMaxPeiPcdCallBackNumberPerPcdEntry indicates the maximum number of callback function