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>
|
||
|---|---|---|
| .. | ||
| Ia32 | ||
| X64 | ||
| CpuS3.c | ||
| CpuService.c | ||
| CpuService.h | ||
| MpService.c | ||
| PiSmmCpuDxeSmm.c | ||
| PiSmmCpuDxeSmm.h | ||
| PiSmmCpuDxeSmm.inf | ||
| PiSmmCpuDxeSmm.uni | ||
| PiSmmCpuDxeSmmExtra.uni | ||
| SmmCpuMemoryManagement.c | ||
| SmmProfile.c | ||
| SmmProfile.h | ||
| SmmProfileInternal.h | ||
| SmramSaveState.c | ||
| SyncTimer.c | ||