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From: Jian J Wang <jian.j.wang@intel.com>
To: edk2-devel@lists.01.org
Cc: Eric Dong <eric.dong@intel.com>, Laszlo Ersek <lersek@redhat.com>,
 Ruiyu Ni <ruiyu.ni@intel.com>
Date: Tue, 21 Aug 2018 11:05:12 +0800
Message-Id: <20180821030515.10156-2-jian.j.wang@intel.com>
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Subject: [PATCH v2 1/4] MdeModulePkg/MdeModulePkg.dec: add new settings for PCDs
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> v2 changes:
>    n/a

BIT6 of PcdHeapGuardPropertyMask is used to enable/disable non-stop mode
of Heap Guard feature. It applies to both UEFI and SMM heap guard, if
any of them is enabled.

BIT6 of PcdNullPointerDetectionPropertyMask is used to enable/disable
non-stop mode of NULL Pointer Detection feature. It applies to both
UEFI and SMM NULL Pointer Detection, if any of them is enabled.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
---
 MdeModulePkg/MdeModulePkg.dec | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 6a6d9660ed..451115030c 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -932,7 +932,8 @@
   #  If enabled, accessing NULL address in UEFI or SMM code can be caught.<BR><BR>
   #    BIT0    - Enable NULL pointer detection for UEFI.<BR>
   #    BIT1    - Enable NULL pointer detection for SMM.<BR>
-  #    BIT2..6 - Reserved for future uses.<BR>
+  #    BIT2..5 - Reserved for future uses.<BR>
+  #    BIT6    - Enable non-stop mode.<BR>
   #    BIT7    - Disable NULL pointer detection just after EndOfDxe. <BR>
   #              This is a workaround for those unsolvable NULL access issues in
   #              OptionROM, boot loader, etc. It can also help to avoid unnecessary
@@ -1014,6 +1015,7 @@
   #   BIT1 - Enable UEFI pool guard.<BR>
   #   BIT2 - Enable SMM page guard.<BR>
   #   BIT3 - Enable SMM pool guard.<BR>
+  #   BIT6 - Enable non-stop mode.<BR>
   #   BIT7 - The direction of Guard Page for Pool Guard.
   #          0 - The returned pool is near the tail guard page.<BR>
   #          1 - The returned pool is near the head guard page.<BR>
-- 
2.16.2.windows.1