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| author | Jian J Wang <jian.j.wang@intel.com> | 2017-11-23 09:57:01 +0800 |
|---|---|---|
| committer | Star Zeng <star.zeng@intel.com> | 2017-11-28 09:25:32 +0800 |
| commit | 646127c1929a606a1a5709d78f06f2dd5494b397 (patch) | |
| tree | 0e2d47c9fe5adb386c3768b67cab3069b5ca9dfe /MdeModulePkg/Core/Dxe | |
| parent | 2c936d7c39ba4305e2da39ef2059326802a42bd2 (diff) | |
| download | edk2-646127c1929a606a1a5709d78f06f2dd5494b397.tar.gz edk2-646127c1929a606a1a5709d78f06f2dd5494b397.tar.bz2 edk2-646127c1929a606a1a5709d78f06f2dd5494b397.zip | |
MdeModulePkg/Core: Merge memory map after filtering paging capability
Once the paging capabilities were filtered out, there might be some adjacent entries
sharing the same capabilities. It's recommended to merge those entries for the OS
compatibility purpose.
This patch makes use of existing method MergeMemoryMap() to do it. This is done by
simply turning this method from static to extern, and call it after filter code.
This patch is related to an issue described at
https://bugzilla.tianocore.org/show_bug.cgi?id=753
This patch is also passed test of booting follow OSs:
Windows 10
Windows Server 2016
Fedora 26
Fedora 25
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Laszlo Ersek <lersek@redhat.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>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'MdeModulePkg/Core/Dxe')
| -rw-r--r-- | MdeModulePkg/Core/Dxe/DxeMain.h | 18 | ||||
| -rw-r--r-- | MdeModulePkg/Core/Dxe/Mem/Page.c | 2 | ||||
| -rw-r--r-- | MdeModulePkg/Core/Dxe/Misc/PropertiesTable.c | 1 |
3 files changed, 20 insertions, 1 deletions
diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h b/MdeModulePkg/Core/Dxe/DxeMain.h index 1a0babba71..07b86ba696 100644 --- a/MdeModulePkg/Core/Dxe/DxeMain.h +++ b/MdeModulePkg/Core/Dxe/DxeMain.h @@ -2948,4 +2948,22 @@ ApplyMemoryProtectionPolicy ( IN UINT64 Length
);
+/**
+ Merge continous memory map entries whose have same attributes.
+
+ @param MemoryMap A pointer to the buffer in which firmware places
+ the current memory map.
+ @param MemoryMapSize A pointer to the size, in bytes, of the
+ MemoryMap buffer. On input, this is the size of
+ the current memory map. On output,
+ it is the size of new memory map after merge.
+ @param DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.
+**/
+VOID
+MergeMemoryMap (
+ IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,
+ IN OUT UINTN *MemoryMapSize,
+ IN UINTN DescriptorSize
+ );
+
#endif
diff --git a/MdeModulePkg/Core/Dxe/Mem/Page.c b/MdeModulePkg/Core/Dxe/Mem/Page.c index 962ae90d3d..853606653c 100644 --- a/MdeModulePkg/Core/Dxe/Mem/Page.c +++ b/MdeModulePkg/Core/Dxe/Mem/Page.c @@ -1915,6 +1915,8 @@ CoreGetMemoryMap ( EFI_MEMORY_XP);
MemoryMap = NEXT_MEMORY_DESCRIPTOR (MemoryMap, Size);
}
+ MergeMemoryMap (MemoryMapStart, &BufferSize, Size);
+ MemoryMapEnd = (EFI_MEMORY_DESCRIPTOR *)((UINT8 *)MemoryMapStart + BufferSize);
Status = EFI_SUCCESS;
diff --git a/MdeModulePkg/Core/Dxe/Misc/PropertiesTable.c b/MdeModulePkg/Core/Dxe/Misc/PropertiesTable.c index 6cf5edcbe5..75d9b14c1f 100644 --- a/MdeModulePkg/Core/Dxe/Misc/PropertiesTable.c +++ b/MdeModulePkg/Core/Dxe/Misc/PropertiesTable.c @@ -182,7 +182,6 @@ SortMemoryMap ( it is the size of new memory map after merge.
@param DescriptorSize Size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.
**/
-STATIC
VOID
MergeMemoryMap (
IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,
|