diff options
| author | Liming Gao <liming.gao@intel.com> | 2015-04-29 05:11:21 +0000 |
|---|---|---|
| committer | lgao4 <lgao4@Edk2> | 2015-04-29 05:11:21 +0000 |
| commit | ba2c05279195e543a3b5875a14de1f952ad8b5f8 (patch) | |
| tree | d6309ad63c7000d471178d77dbb9b8b31e0dfb65 /MdeModulePkg/Core | |
| parent | a1b7065b2e24794baf573666fe9024a53512be06 (diff) | |
| download | edk2-platforms-ba2c05279195e543a3b5875a14de1f952ad8b5f8.tar.xz | |
MdeModulePkg: PI1.4 DxeCore GetMemoryMap() update
PI1.4: Updates DxeCore to add all EfiGcdMemoryTypeReserved memory
into UEFI memory map.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Liming Gao <liming.gao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17253 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Core')
| -rw-r--r-- | MdeModulePkg/Core/Dxe/Mem/Page.c | 70 |
1 files changed, 32 insertions, 38 deletions
diff --git a/MdeModulePkg/Core/Dxe/Mem/Page.c b/MdeModulePkg/Core/Dxe/Mem/Page.c index 830b19700a..abfb0b9c74 100644 --- a/MdeModulePkg/Core/Dxe/Mem/Page.c +++ b/MdeModulePkg/Core/Dxe/Mem/Page.c @@ -1530,7 +1530,7 @@ CoreGetMemoryMap ( EFI_STATUS Status;
UINTN Size;
UINTN BufferSize;
- UINTN NumberOfRuntimePersistentEntries;
+ UINTN NumberOfEntries;
LIST_ENTRY *Link;
MEMORY_MAP *Entry;
EFI_GCD_MAP_ENTRY *GcdMapEntry;
@@ -1547,21 +1547,17 @@ CoreGetMemoryMap ( CoreAcquireGcdMemoryLock ();
//
- // Count the number of Reserved and MMIO entries that are marked for runtime use
+ // Count the number of Reserved and runtime MMIO entries
// And, count the number of Persistent entries.
//
- NumberOfRuntimePersistentEntries = 0;
+ NumberOfEntries = 0;
for (Link = mGcdMemorySpaceMap.ForwardLink; Link != &mGcdMemorySpaceMap; Link = Link->ForwardLink) {
GcdMapEntry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
- if ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) ||
- (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo)) {
- if ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {
- NumberOfRuntimePersistentEntries ++;
- }
- }
-
- if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypePersistentMemory) {
- NumberOfRuntimePersistentEntries ++;
+ if ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypePersistentMemory) ||
+ (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) ||
+ ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) &&
+ ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME))) {
+ NumberOfEntries ++;
}
}
@@ -1587,7 +1583,7 @@ CoreGetMemoryMap ( //
// Compute the buffer size needed to fit the entire map
//
- BufferSize = Size * NumberOfRuntimePersistentEntries;
+ BufferSize = Size * NumberOfEntries;
for (Link = gMemoryMap.ForwardLink; Link != &gMemoryMap; Link = Link->ForwardLink) {
BufferSize += Size;
}
@@ -1652,33 +1648,31 @@ CoreGetMemoryMap ( for (Link = mGcdMemorySpaceMap.ForwardLink; Link != &mGcdMemorySpaceMap; Link = Link->ForwardLink) {
GcdMapEntry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);
if ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) ||
- (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo)) {
- if ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {
- //
- // Create EFI_MEMORY_DESCRIPTOR for every Reserved and MMIO GCD entries
- // that are marked for runtime use
- //
- MemoryMap->PhysicalStart = GcdMapEntry->BaseAddress;
- MemoryMap->VirtualStart = 0;
- MemoryMap->NumberOfPages = RShiftU64 ((GcdMapEntry->EndAddress - GcdMapEntry->BaseAddress + 1), EFI_PAGE_SHIFT);
- MemoryMap->Attribute = GcdMapEntry->Attributes & ~EFI_MEMORY_PORT_IO;
-
- if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) {
- MemoryMap->Type = EfiReservedMemoryType;
- } else if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {
- if ((GcdMapEntry->Attributes & EFI_MEMORY_PORT_IO) == EFI_MEMORY_PORT_IO) {
- MemoryMap->Type = EfiMemoryMappedIOPortSpace;
- } else {
- MemoryMap->Type = EfiMemoryMappedIO;
- }
+ ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) &&
+ ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME))) {
+ //
+ // Create EFI_MEMORY_DESCRIPTOR for every Reserved and runtime MMIO GCD entries
+ //
+ MemoryMap->PhysicalStart = GcdMapEntry->BaseAddress;
+ MemoryMap->VirtualStart = 0;
+ MemoryMap->NumberOfPages = RShiftU64 ((GcdMapEntry->EndAddress - GcdMapEntry->BaseAddress + 1), EFI_PAGE_SHIFT);
+ MemoryMap->Attribute = GcdMapEntry->Attributes & ~EFI_MEMORY_PORT_IO;
+
+ if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) {
+ MemoryMap->Type = EfiReservedMemoryType;
+ } else if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {
+ if ((GcdMapEntry->Attributes & EFI_MEMORY_PORT_IO) == EFI_MEMORY_PORT_IO) {
+ MemoryMap->Type = EfiMemoryMappedIOPortSpace;
+ } else {
+ MemoryMap->Type = EfiMemoryMappedIO;
}
-
- //
- // Check to see if the new Memory Map Descriptor can be merged with an
- // existing descriptor if they are adjacent and have the same attributes
- //
- MemoryMap = MergeMemoryMapDescriptor (MemoryMapStart, MemoryMap, Size);
}
+
+ //
+ // Check to see if the new Memory Map Descriptor can be merged with an
+ // existing descriptor if they are adjacent and have the same attributes
+ //
+ MemoryMap = MergeMemoryMapDescriptor (MemoryMapStart, MemoryMap, Size);
}
if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypePersistentMemory) {
|