PcdCpuStackGuard is introduced to enable/disable Stack Guard feature.
Its value is FALSE by default.
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>
---
MdeModulePkg/MdeModulePkg.dec | 7 +++++++
MdeModulePkg/MdeModulePkg.uni | 7 +++++++
2 files changed, 14 insertions(+)
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 856d67aceb..b3831a21ad 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -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
diff --git a/MdeModulePkg/MdeModulePkg.uni b/MdeModulePkg/MdeModulePkg.uni
index 588905a9a1..43dd5103be 100644
--- a/MdeModulePkg/MdeModulePkg.uni
+++ b/MdeModulePkg/MdeModulePkg.uni
@@ -1204,3 +1204,10 @@
" 0 - The returned pool is adjacent to the bottom guard page.<BR>\n"
" 1 - The returned pool is adjacent to the top guard page.<BR>"
+#string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdCpuStackGuard_PROMPT #language en-US "Enable UEFI Stack Guard"
+
+#string STR_gEfiMdeModulePkgTokenSpaceGuid_PcdCpuStackGuard_HELP #language en-US "Indicates if UEFI Stack Guard will be enabled.\n"
+ " If enabled, stack overflow in UEFI can be caught, preventing chaotic consequences.<BR><BR>\n"
+ " TRUE - UEFI Stack Guard will be enabled.<BR>\n"
+ " FALSE - UEFI Stack Guard will be disabled.<BR>"
+
--
2.14.1.windows.1
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