mirror of https://github.com/acidanthera/audk.git
af4f4b3468
Heap guard makes use of paging mechanism to implement its functionality. But
there's no protocol or library available to change page attribute in SMM mode.
A new protocol gEdkiiSmmMemoryAttributeProtocolGuid is introduced to make it
happen. This protocol provide three interfaces
struct _EDKII_SMM_MEMORY_ATTRIBUTE_PROTOCOL {
EDKII_SMM_GET_MEMORY_ATTRIBUTES GetMemoryAttributes;
EDKII_SMM_SET_MEMORY_ATTRIBUTES SetMemoryAttributes;
EDKII_SMM_CLEAR_MEMORY_ATTRIBUTES ClearMemoryAttributes;
};
Since heap guard feature need to update page attributes. The page table
should not set to be read-only if heap guard feature is enabled for SMM
mode. Otherwise this feature cannot work.
Cc: Eric Dong <eric.dong@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ruiyu Ni <ruiyu.ni@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: Jiewen Yao <jiewen.yao@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
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||
|---|---|---|
| .. | ||
| MpFuncs.S | ||
| MpFuncs.asm | ||
| MpFuncs.nasm | ||
| PageTbl.c | ||
| Semaphore.c | ||
| SmiEntry.S | ||
| SmiEntry.asm | ||
| SmiEntry.nasm | ||
| SmiException.S | ||
| SmiException.asm | ||
| SmiException.nasm | ||
| SmmFuncsArch.c | ||
| SmmInit.S | ||
| SmmInit.asm | ||
| SmmInit.nasm | ||
| SmmProfileArch.c | ||
| SmmProfileArch.h | ||