diff options
| author | Jian J Wang <jian.j.wang@intel.com> | 2017-10-09 21:58:55 +0800 |
|---|---|---|
| committer | Eric Dong <eric.dong@intel.com> | 2017-10-11 16:39:01 +0800 |
| commit | a7181d952fcd0b03c423cef99b6e8bf93d9cb1f1 (patch) | |
| tree | 700c32b1c52c51fbf740a1d7d5a62b6ea459e4d8 /MdeModulePkg/Core/Dxe/DxeMain.inf | |
| parent | 9189ec20b9e22fe1ec61caefa47a3b3a3cad23a3 (diff) | |
| download | edk2-a7181d952fcd0b03c423cef99b6e8bf93d9cb1f1.tar.gz edk2-a7181d952fcd0b03c423cef99b6e8bf93d9cb1f1.tar.bz2 edk2-a7181d952fcd0b03c423cef99b6e8bf93d9cb1f1.zip | |
MdeModulePkg/Core/Dxe: Add EndOfDxe workaround for NULL pointer detection
One of issue caused by enabling NULL pointer detection is that some PCI
device OptionROM, binary drivers and binary OS boot loaders may have NULL
pointer access bugs, which will prevent BIOS from booting and is almost
impossible to fix. BIT7 of PCD PcdNullPointerDetectionPropertyMask is used
as a workaround to indicate BIOS to disable NULL pointer detection right
after event gEfiEndOfDxeEventGroupGuid, and then let boot continue.
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Ayellet Wolman <ayellet.wolman@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: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Diffstat (limited to 'MdeModulePkg/Core/Dxe/DxeMain.inf')
| -rw-r--r-- | MdeModulePkg/Core/Dxe/DxeMain.inf | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/MdeModulePkg/Core/Dxe/DxeMain.inf b/MdeModulePkg/Core/Dxe/DxeMain.inf index e29d6c83ae..15f4b03d3c 100644 --- a/MdeModulePkg/Core/Dxe/DxeMain.inf +++ b/MdeModulePkg/Core/Dxe/DxeMain.inf @@ -192,6 +192,7 @@ gEfiMdeModulePkgTokenSpaceGuid.PcdPropertiesTableEnable ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdImageProtectionPolicy ## CONSUMES
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeNxMemoryProtectionPolicy ## CONSUMES
+ gEfiMdeModulePkgTokenSpaceGuid.PcdNullPointerDetectionPropertyMask ## CONSUMES
# [Hob]
# RESOURCE_DESCRIPTOR ## CONSUMES
|