This feature makes use of paging mechanism to add a hidden (not present)
page just before and after the allocated memory block. If the code tries
to access memory outside of the allocated part, page fault exception will
be triggered.
This feature is disabled by default and is not recommended to enable it
in production build of BIOS.
Cc: Star Zeng <star.z...@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Michael Kinney <michael.d.kin...@intel.com>
Cc: Ayellet Wolman <ayellet.wol...@intel.com>
Suggested-by: Ayellet Wolman <ayellet.wol...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jian J Wang <jian.j.w...@intel.com>
Jian J Wang (5):
MdeModulePkg/DxeCore: Implement heap guard feature for UEFI
MdeModulePkg/PiSmmCore: Implement heap guard feature for SMM mode
MdeModulePkg/MdeModulePkg.dec,.uni: Add heap guard related PCDs and
string tokens
UefiCpuPkg/CpuDxe: Reduce debug message
UefiCpuPkg/PiSmmCpuDxeSmm: Disable page table protection
MdeModulePkg/Core/Dxe/DxeMain.inf | 4 +
MdeModulePkg/Core/Dxe/Mem/HeapGuard.c | 1171 +++++++++++++++++++++
MdeModulePkg/Core/Dxe/Mem/HeapGuard.h | 391 +++++++
MdeModulePkg/Core/Dxe/Mem/Imem.h | 38 +-
MdeModulePkg/Core/Dxe/Mem/Page.c | 129 ++-
MdeModulePkg/Core/Dxe/Mem/Pool.c | 154 ++-
MdeModulePkg/Core/PiSmmCore/Misc/HeapGuard.c | 1438 ++++++++++++++++++++++++++
MdeModulePkg/Core/PiSmmCore/Misc/HeapGuard.h | 395 +++++++
MdeModulePkg/Core/PiSmmCore/Misc/PageTable.c | 704 +++++++++++++
MdeModulePkg/Core/PiSmmCore/Misc/PageTable.h | 174 ++++
MdeModulePkg/Core/PiSmmCore/Page.c | 51 +-
MdeModulePkg/Core/PiSmmCore/PiSmmCore.c | 12 +-
MdeModulePkg/Core/PiSmmCore/PiSmmCore.h | 80 +-
MdeModulePkg/Core/PiSmmCore/PiSmmCore.inf | 8 +
MdeModulePkg/Core/PiSmmCore/Pool.c | 77 +-
MdeModulePkg/MdeModulePkg.dec | 57 +
MdeModulePkg/MdeModulePkg.uni | 58 ++
UefiCpuPkg/CpuDxe/CpuPageTable.c | 5 +-
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.inf | 1 +
UefiCpuPkg/PiSmmCpuDxeSmm/X64/PageTbl.c | 2 +-
20 files changed, 4854 insertions(+), 95 deletions(-)
create mode 100644 MdeModulePkg/Core/Dxe/Mem/HeapGuard.c
create mode 100644 MdeModulePkg/Core/Dxe/Mem/HeapGuard.h
create mode 100644 MdeModulePkg/Core/PiSmmCore/Misc/HeapGuard.c
create mode 100644 MdeModulePkg/Core/PiSmmCore/Misc/HeapGuard.h
create mode 100644 MdeModulePkg/Core/PiSmmCore/Misc/PageTable.c
create mode 100644 MdeModulePkg/Core/PiSmmCore/Misc/PageTable.h
--
2.14.1.windows.1
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