audk/MdeModulePkg
Jian J Wang f9d0e5daa0 MdeModulePkg/DxeIplPeim: reserve page 0 for NULL pointer detection
When a boot loader examines the memory map, it can see that location 0
is available memory. If it chooses to use that memory, and
PcdNullPointerDetectionPropertyMask is enabled, use of memory in page 0
will cause an exception. This does occur when running the memtest86
program.

Leaving page 0 available is for legacy support purpose. Since we have
deprecated the support of legacy, the solution is just reserving it so
that it cannot be allocated for other uses.

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1885
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Signed-off-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
2019-11-09 10:59:56 +08:00
..
Application MdeModulePkg VariableInfo: Always consider RT DXE and SMM stats 2019-11-05 21:55:54 -08:00
Bus MdeModulePkg/UhciPei: Initialize the variable RequestMap 2019-11-04 08:56:12 +08:00
Core MdeModulePkg/DxeIplPeim: reserve page 0 for NULL pointer detection 2019-11-09 10:59:56 +08:00
Include MdeModulePkg/Variable: Add RT GetVariable() cache support 2019-11-05 21:55:54 -08:00
Library MdeModulePkg LzmaCustomDecompressLib: Update macro to be same in CLANG tool 2019-10-24 09:41:32 +08:00
Logo MdeModulePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:08 -07:00
Universal MdeModulePkg/Variable: Add RT GetNextVariableName() cache support 2019-11-05 21:55:54 -08:00
MdeModulePkg.dec MdeModulePkg: Enable variable runtime cache by default 2019-11-05 21:55:54 -08:00
MdeModulePkg.dsc MdeModulePkg: Remove RecoveryLib.h and PeiRecoveryLibNull 2019-08-05 10:09:01 +08:00
MdeModulePkg.uni MdeModulePkg: Remove PCD gEfiMdeModulePkgTokenSpaceGuid.PcdTftpBlockSize 2019-10-08 09:20:34 +08:00
MdeModulePkgExtra.uni MdeModulePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:08 -07:00