/** @file\r
UEFI Memory page management functions.\r
\r
-Copyright (c) 2007 - 2015, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution. The full text of the license may be found at\r
//\r
// Update the GCD map\r
//\r
- Entry->GcdMemoryType = EfiGcdMemoryTypeSystemMemory;\r
+ if ((Entry->Capabilities & EFI_MEMORY_MORE_RELIABLE) == EFI_MEMORY_MORE_RELIABLE) {\r
+ Entry->GcdMemoryType = EfiGcdMemoryTypeMoreReliable;\r
+ } else {\r
+ Entry->GcdMemoryType = EfiGcdMemoryTypeSystemMemory;\r
+ }\r
Entry->Capabilities |= EFI_MEMORY_TESTED;\r
Entry->ImageHandle = gDxeCoreImageHandle;\r
Entry->DeviceHandle = NULL;\r
return;\r
}\r
\r
- if (Type >= EfiMaxMemoryType && Type <= 0x7fffffff) {\r
+ if (Type >= EfiMaxMemoryType && Type < MEMORY_TYPE_OEM_RESERVED_MIN) {\r
return;\r
}\r
CoreAcquireMemoryLock ();\r
ASSERT_LOCKED (&gMemoryLock);\r
ASSERT ( (ChangingType == FALSE) || (ChangingAttributes == FALSE) );\r
\r
- if (NumberOfPages == 0 || ((Start & EFI_PAGE_MASK) != 0) || (Start > (Start + NumberOfBytes))) {\r
+ if (NumberOfPages == 0 || ((Start & EFI_PAGE_MASK) != 0) || (Start >= End)) {\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
\r
DescEnd = ((DescEnd + 1) & (~(Alignment - 1))) - 1;\r
\r
+ // Skip if DescEnd is less than DescStart after alignment clipping\r
+ if (DescEnd < DescStart) {\r
+ continue;\r
+ }\r
+\r
//\r
// Compute the number of bytes we can used from this\r
// descriptor, and see it's enough to satisfy the request\r
{\r
EFI_STATUS Status;\r
UINT64 Start;\r
+ UINT64 NumberOfBytes;\r
+ UINT64 End;\r
UINT64 MaxAddress;\r
UINTN Alignment;\r
\r
return EFI_INVALID_PARAMETER;\r
}\r
\r
- if ((MemoryType >= EfiMaxMemoryType && MemoryType <= 0x7fffffff) ||\r
+ if ((MemoryType >= EfiMaxMemoryType && MemoryType < MEMORY_TYPE_OEM_RESERVED_MIN) ||\r
(MemoryType == EfiConventionalMemory) || (MemoryType == EfiPersistentMemory)) {\r
return EFI_INVALID_PARAMETER;\r
}\r
//\r
MaxAddress = MAX_ADDRESS;\r
\r
+ //\r
+ // Check for Type AllocateAddress,\r
+ // if NumberOfPages is 0 or\r
+ // if (NumberOfPages << EFI_PAGE_SHIFT) is above MAX_ADDRESS or\r
+ // if (Start + NumberOfBytes) rolls over 0 or\r
+ // if Start is above MAX_ADDRESS or\r
+ // if End is above MAX_ADDRESS,\r
+ // return EFI_NOT_FOUND.\r
+ //\r
+ if (Type == AllocateAddress) {\r
+ if ((NumberOfPages == 0) ||\r
+ (NumberOfPages > RShiftU64 (MaxAddress, EFI_PAGE_SHIFT))) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+ NumberOfBytes = LShiftU64 (NumberOfPages, EFI_PAGE_SHIFT);\r
+ End = Start + NumberOfBytes - 1;\r
+\r
+ if ((Start >= End) ||\r
+ (Start > MaxAddress) || \r
+ (End > MaxAddress)) {\r
+ return EFI_NOT_FOUND;\r
+ }\r
+ }\r
+\r
if (Type == AllocateMaxAddress) {\r
MaxAddress = Start;\r
}\r
EFI_STATUS Status;\r
UINTN Size;\r
UINTN BufferSize;\r
- UINTN NumberOfRuntimePersistentEntries;\r
+ UINTN NumberOfEntries;\r
LIST_ENTRY *Link;\r
MEMORY_MAP *Entry;\r
EFI_GCD_MAP_ENTRY *GcdMapEntry;\r
+ EFI_GCD_MAP_ENTRY MergeGcdMapEntry;\r
EFI_MEMORY_TYPE Type;\r
EFI_MEMORY_DESCRIPTOR *MemoryMapStart;\r
\r
CoreAcquireGcdMemoryLock ();\r
\r
//\r
- // Count the number of Reserved and MMIO entries that are marked for runtime use\r
+ // Count the number of Reserved and runtime MMIO entries\r
// And, count the number of Persistent entries.\r
//\r
- NumberOfRuntimePersistentEntries = 0;\r
+ NumberOfEntries = 0;\r
for (Link = mGcdMemorySpaceMap.ForwardLink; Link != &mGcdMemorySpaceMap; Link = Link->ForwardLink) {\r
GcdMapEntry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- if ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) ||\r
- (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo)) {\r
- if ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {\r
- NumberOfRuntimePersistentEntries ++;\r
- }\r
- }\r
- \r
- if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypePersistentMemory) {\r
- NumberOfRuntimePersistentEntries ++;\r
+ if ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypePersistentMemory) || \r
+ (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) ||\r
+ ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) &&\r
+ ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME))) {\r
+ NumberOfEntries ++;\r
}\r
}\r
\r
//\r
// Compute the buffer size needed to fit the entire map\r
//\r
- BufferSize = Size * NumberOfRuntimePersistentEntries;\r
+ BufferSize = Size * NumberOfEntries;\r
for (Link = gMemoryMap.ForwardLink; Link != &gMemoryMap; Link = Link->ForwardLink) {\r
BufferSize += Size;\r
}\r
MemoryMap = MergeMemoryMapDescriptor (MemoryMapStart, MemoryMap, Size);\r
}\r
\r
- for (Link = mGcdMemorySpaceMap.ForwardLink; Link != &mGcdMemorySpaceMap; Link = Link->ForwardLink) {\r
- GcdMapEntry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
- if ((GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) ||\r
- (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo)) {\r
- if ((GcdMapEntry->Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME) {\r
- // \r
- // Create EFI_MEMORY_DESCRIPTOR for every Reserved and MMIO GCD entries\r
- // that are marked for runtime use\r
- //\r
- MemoryMap->PhysicalStart = GcdMapEntry->BaseAddress;\r
- MemoryMap->VirtualStart = 0;\r
- MemoryMap->NumberOfPages = RShiftU64 ((GcdMapEntry->EndAddress - GcdMapEntry->BaseAddress + 1), EFI_PAGE_SHIFT);\r
- MemoryMap->Attribute = GcdMapEntry->Attributes & ~EFI_MEMORY_PORT_IO;\r
-\r
- if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeReserved) {\r
- MemoryMap->Type = EfiReservedMemoryType;\r
- } else if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {\r
- if ((GcdMapEntry->Attributes & EFI_MEMORY_PORT_IO) == EFI_MEMORY_PORT_IO) {\r
- MemoryMap->Type = EfiMemoryMappedIOPortSpace;\r
- } else {\r
- MemoryMap->Type = EfiMemoryMappedIO;\r
- }\r
- }\r
+ \r
+ ZeroMem (&MergeGcdMapEntry, sizeof (MergeGcdMapEntry));\r
+ GcdMapEntry = NULL;\r
+ for (Link = mGcdMemorySpaceMap.ForwardLink; ; Link = Link->ForwardLink) {\r
+ if (Link != &mGcdMemorySpaceMap) {\r
+ //\r
+ // Merge adjacent same type and attribute GCD memory range\r
+ //\r
+ GcdMapEntry = CR (Link, EFI_GCD_MAP_ENTRY, Link, EFI_GCD_MAP_SIGNATURE);\r
+ \r
+ if ((MergeGcdMapEntry.Capabilities == GcdMapEntry->Capabilities) && \r
+ (MergeGcdMapEntry.Attributes == GcdMapEntry->Attributes) &&\r
+ (MergeGcdMapEntry.GcdMemoryType == GcdMapEntry->GcdMemoryType) &&\r
+ (MergeGcdMapEntry.GcdIoType == GcdMapEntry->GcdIoType)) {\r
+ MergeGcdMapEntry.EndAddress = GcdMapEntry->EndAddress;\r
+ continue;\r
+ }\r
+ }\r
\r
- //\r
- // Check to see if the new Memory Map Descriptor can be merged with an \r
- // existing descriptor if they are adjacent and have the same attributes\r
- //\r
- MemoryMap = MergeMemoryMapDescriptor (MemoryMapStart, MemoryMap, Size);\r
+ if ((MergeGcdMapEntry.GcdMemoryType == EfiGcdMemoryTypeReserved) ||\r
+ ((MergeGcdMapEntry.GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) &&\r
+ ((MergeGcdMapEntry.Attributes & EFI_MEMORY_RUNTIME) == EFI_MEMORY_RUNTIME))) {\r
+ //\r
+ // Page Align GCD range is required. When it is converted to EFI_MEMORY_DESCRIPTOR, \r
+ // it will be recorded as page PhysicalStart and NumberOfPages. \r
+ //\r
+ ASSERT ((MergeGcdMapEntry.BaseAddress & EFI_PAGE_MASK) == 0);\r
+ ASSERT (((MergeGcdMapEntry.EndAddress - MergeGcdMapEntry.BaseAddress + 1) & EFI_PAGE_MASK) == 0);\r
+ \r
+ // \r
+ // Create EFI_MEMORY_DESCRIPTOR for every Reserved and runtime MMIO GCD entries\r
+ //\r
+ MemoryMap->PhysicalStart = MergeGcdMapEntry.BaseAddress;\r
+ MemoryMap->VirtualStart = 0;\r
+ MemoryMap->NumberOfPages = RShiftU64 ((MergeGcdMapEntry.EndAddress - MergeGcdMapEntry.BaseAddress + 1), EFI_PAGE_SHIFT);\r
+ MemoryMap->Attribute = (MergeGcdMapEntry.Attributes & ~EFI_MEMORY_PORT_IO) | \r
+ (MergeGcdMapEntry.Capabilities & (EFI_MEMORY_RP | EFI_MEMORY_WP | EFI_MEMORY_XP | EFI_MEMORY_RO |\r
+ EFI_MEMORY_UC | EFI_MEMORY_UCE | EFI_MEMORY_WC | EFI_MEMORY_WT | EFI_MEMORY_WB));\r
+\r
+ if (MergeGcdMapEntry.GcdMemoryType == EfiGcdMemoryTypeReserved) {\r
+ MemoryMap->Type = EfiReservedMemoryType;\r
+ } else if (MergeGcdMapEntry.GcdMemoryType == EfiGcdMemoryTypeMemoryMappedIo) {\r
+ if ((MergeGcdMapEntry.Attributes & EFI_MEMORY_PORT_IO) == EFI_MEMORY_PORT_IO) {\r
+ MemoryMap->Type = EfiMemoryMappedIOPortSpace;\r
+ } else {\r
+ MemoryMap->Type = EfiMemoryMappedIO;\r
+ }\r
}\r
+\r
+ //\r
+ // Check to see if the new Memory Map Descriptor can be merged with an \r
+ // existing descriptor if they are adjacent and have the same attributes\r
+ //\r
+ MemoryMap = MergeMemoryMapDescriptor (MemoryMapStart, MemoryMap, Size);\r
}\r
\r
- if (GcdMapEntry->GcdMemoryType == EfiGcdMemoryTypePersistentMemory) {\r
+ if (MergeGcdMapEntry.GcdMemoryType == EfiGcdMemoryTypePersistentMemory) {\r
+ //\r
+ // Page Align GCD range is required. When it is converted to EFI_MEMORY_DESCRIPTOR, \r
+ // it will be recorded as page PhysicalStart and NumberOfPages. \r
+ //\r
+ ASSERT ((MergeGcdMapEntry.BaseAddress & EFI_PAGE_MASK) == 0);\r
+ ASSERT (((MergeGcdMapEntry.EndAddress - MergeGcdMapEntry.BaseAddress + 1) & EFI_PAGE_MASK) == 0);\r
+\r
// \r
// Create EFI_MEMORY_DESCRIPTOR for every Persistent GCD entries\r
//\r
- MemoryMap->PhysicalStart = GcdMapEntry->BaseAddress;\r
+ MemoryMap->PhysicalStart = MergeGcdMapEntry.BaseAddress;\r
MemoryMap->VirtualStart = 0;\r
- MemoryMap->NumberOfPages = RShiftU64 ((GcdMapEntry->EndAddress - GcdMapEntry->BaseAddress + 1), EFI_PAGE_SHIFT);\r
- MemoryMap->Attribute = GcdMapEntry->Attributes | EFI_MEMORY_NV;\r
+ MemoryMap->NumberOfPages = RShiftU64 ((MergeGcdMapEntry.EndAddress - MergeGcdMapEntry.BaseAddress + 1), EFI_PAGE_SHIFT);\r
+ MemoryMap->Attribute = MergeGcdMapEntry.Attributes | EFI_MEMORY_NV | \r
+ (MergeGcdMapEntry.Capabilities & (EFI_MEMORY_RP | EFI_MEMORY_WP | EFI_MEMORY_XP | EFI_MEMORY_RO |\r
+ EFI_MEMORY_UC | EFI_MEMORY_UCE | EFI_MEMORY_WC | EFI_MEMORY_WT | EFI_MEMORY_WB));\r
MemoryMap->Type = EfiPersistentMemory;\r
\r
//\r
//\r
MemoryMap = MergeMemoryMapDescriptor (MemoryMapStart, MemoryMap, Size);\r
}\r
+ if (Link == &mGcdMemorySpaceMap) {\r
+ //\r
+ // break loop when arrive at head.\r
+ //\r
+ break;\r
+ }\r
+ if (GcdMapEntry != NULL) {\r
+ //\r
+ // Copy new GCD map entry for the following GCD range merge\r
+ //\r
+ CopyMem (&MergeGcdMapEntry, GcdMapEntry, sizeof (MergeGcdMapEntry));\r
+ }\r
}\r
\r
//\r
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