From: Jian J Wang <jian.j.wang@intel.com>
To: edk2-devel@lists.01.org
Cc: Star Zeng <star.zeng@intel.com>, Eric Dong <eric.dong@intel.com>
Subject: [PATCH v3 01/11] MdeModulePkg/metafile: Add PCD PcdCpuStackGuard
Date: Fri, 1 Dec 2017 10:37:18 +0800 [thread overview]
Message-ID: <20171201023728.4680-2-jian.j.wang@intel.com> (raw)
In-Reply-To: <20171201023728.4680-1-jian.j.wang@intel.com>
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>
---
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
next prev parent reply other threads:[~2017-12-01 2:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-01 2:37 [PATCH v3 00/11] Implement stack guard feature Jian J Wang
2017-12-01 2:37 ` Jian J Wang [this message]
2017-12-01 2:37 ` [PATCH v3 02/11] UefiCpuPkg/UefiCpuPkg.dec: Add two new PCDs for stack switch Jian J Wang
2017-12-01 2:37 ` [PATCH v3 03/11] MdeModulePkg/CpuExceptionHandlerLib.h: Add a new API InitializeCpuExceptionHandlersEx Jian J Wang
2017-12-01 2:37 ` [PATCH v3 04/11] MdePkg/BaseLib: Add stack switch related definitions for IA32 Jian J Wang
2017-12-01 2:37 ` [PATCH v3 05/11] UefiCpuPkg/CpuExceptionHandlerLib: Add stack switch support Jian J Wang
2017-12-01 2:37 ` [PATCH v3 06/11] MdeModulePkg/CpuExceptionHandlerLibNull: Add new API implementation Jian J Wang
2017-12-01 2:37 ` [PATCH v3 07/11] ArmPkg/ArmExceptionLib: Add implementation of new API Jian J Wang
2017-12-04 13:58 ` Ard Biesheuvel
2017-12-05 0:02 ` Wang, Jian J
2017-12-01 2:37 ` [PATCH v3 08/11] UefiCpuPkg/MpLib: Add GDTR, IDTR and TR in saved AP data Jian J Wang
2017-12-01 2:37 ` [PATCH v3 09/11] UefiCpuPkg/CpuDxe: Initialize stack switch for MP Jian J Wang
2017-12-01 2:37 ` [PATCH v3 10/11] MdeModulePkg/Core/Dxe: Call new API InitializeCpuExceptionHandlersEx instead Jian J Wang
2017-12-01 2:37 ` [PATCH v3 11/11] MdeModulePkg/DxeIpl: Enable paging for Stack Guard Jian J Wang
2017-12-05 2:03 ` [PATCH v3 00/11] Implement stack guard feature Yao, Jiewen
2017-12-05 6:55 ` Wang, Jian J
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