MdeModulePkg/MdeModulePkg.dec | 12 ++++++++++++ 1 file changed, 12 insertions(+)
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
---
MdeModulePkg/MdeModulePkg.dec | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 037b16e2d0..491fb27663 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -893,6 +893,12 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdInitValueInTempStack|0x5AA55AA5|UINT32|0x30001051
## Indicates which type allocation need guard page.
+ #
+ # If a bit is set, a head guard page and a tail guard page will be added just
+ # before and after corresponding type of pages allocated if there's enough
+ # free pages for all of them. The page allocation for the type related to
+ # cleared bits keeps the same as ususal.
+ #
# Below is bit mask for this PCD: (Order is same as UEFI spec)<BR>
# EfiReservedMemoryType 0x0000000000000001<BR>
# EfiLoaderCode 0x0000000000000002<BR>
@@ -916,6 +922,12 @@
gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPageType|0x0|UINT64|0x30001052
## Indicates which type allocation need guard page.
+ #
+ # If a bit is set, a head guard page and a tail guard page will be added just
+ # before and after corresponding type of pages which the allocated pool occupies,
+ # if there's enough free memory for all of them. The pool allocation for the
+ # type related to cleared bits keeps the same as ususal.
+ #
# Below is bit mask for this PCD: (Order is same as UEFI spec)<BR>
# EfiReservedMemoryType 0x0000000000000001<BR>
# EfiLoaderCode 0x0000000000000002<BR>
--
2.15.1.windows.2
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Reviewed-by: Star Zeng <star.zeng@intel.com> after you also update the MdeModulePkg.uni accordingly. Thanks, Star -----Original Message----- From: edk2-devel [mailto:edk2-devel-bounces@lists.01.org] On Behalf Of Jian J Wang Sent: Tuesday, January 2, 2018 4:27 PM To: edk2-devel@lists.01.org Cc: Dong, Eric <eric.dong@intel.com>; Zeng, Star <star.zeng@intel.com> Subject: [edk2] [PATCH] MdeModulePkg/MdeModulePkg.dec: clarify Heap Guard usage Cc: Star Zeng <star.zeng@intel.com> Cc: Eric Dong <eric.dong@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Jian J Wang <jian.j.wang@intel.com> --- MdeModulePkg/MdeModulePkg.dec | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index 037b16e2d0..491fb27663 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -893,6 +893,12 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdInitValueInTempStack|0x5AA55AA5|UINT32|0x30001051 ## Indicates which type allocation need guard page. + # + # If a bit is set, a head guard page and a tail guard page will be + added just # before and after corresponding type of pages allocated + if there's enough # free pages for all of them. The page allocation + for the type related to # cleared bits keeps the same as ususal. + # # Below is bit mask for this PCD: (Order is same as UEFI spec)<BR> # EfiReservedMemoryType 0x0000000000000001<BR> # EfiLoaderCode 0x0000000000000002<BR> @@ -916,6 +922,12 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdHeapGuardPageType|0x0|UINT64|0x30001052 ## Indicates which type allocation need guard page. + # + # If a bit is set, a head guard page and a tail guard page will be + added just # before and after corresponding type of pages which the + allocated pool occupies, # if there's enough free memory for all of + them. The pool allocation for the # type related to cleared bits keeps the same as ususal. + # # Below is bit mask for this PCD: (Order is same as UEFI spec)<BR> # EfiReservedMemoryType 0x0000000000000001<BR> # EfiLoaderCode 0x0000000000000002<BR> -- 2.15.1.windows.2 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
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