diff options
Diffstat (limited to 'MdeModulePkg/Core/PiSmmCore/Page.c')
| -rw-r--r-- | MdeModulePkg/Core/PiSmmCore/Page.c | 72 |
1 files changed, 64 insertions, 8 deletions
diff --git a/MdeModulePkg/Core/PiSmmCore/Page.c b/MdeModulePkg/Core/PiSmmCore/Page.c index 5b6e849a2d..9cc2a4cabc 100644 --- a/MdeModulePkg/Core/PiSmmCore/Page.c +++ b/MdeModulePkg/Core/PiSmmCore/Page.c @@ -1,7 +1,7 @@ /** @file
SMM Memory page management functions.
- Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at
@@ -16,11 +16,6 @@ #define TRUNCATE_TO_PAGES(a) ((a) >> EFI_PAGE_SHIFT)
-typedef struct {
- LIST_ENTRY Link;
- UINTN NumberOfPages;
-} FREE_PAGE_LIST;
-
LIST_ENTRY mSmmMemoryMap = INITIALIZE_LIST_HEAD_VARIABLE (mSmmMemoryMap);
/**
@@ -151,7 +146,7 @@ InternalAllocAddress ( **/
EFI_STATUS
EFIAPI
-SmmAllocatePages (
+SmmInternalAllocatePages (
IN EFI_ALLOCATE_TYPE Type,
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN NumberOfPages,
@@ -203,6 +198,40 @@ SmmAllocatePages ( }
/**
+ Allocates pages from the memory map.
+
+ @param Type The type of allocation to perform.
+ @param MemoryType The type of memory to turn the allocated pages
+ into.
+ @param NumberOfPages The number of pages to allocate.
+ @param Memory A pointer to receive the base allocated memory
+ address.
+
+ @retval EFI_INVALID_PARAMETER Parameters violate checking rules defined in spec.
+ @retval EFI_NOT_FOUND Could not allocate pages match the requirement.
+ @retval EFI_OUT_OF_RESOURCES No enough pages to allocate.
+ @retval EFI_SUCCESS Pages successfully allocated.
+
+**/
+EFI_STATUS
+EFIAPI
+SmmAllocatePages (
+ IN EFI_ALLOCATE_TYPE Type,
+ IN EFI_MEMORY_TYPE MemoryType,
+ IN UINTN NumberOfPages,
+ OUT EFI_PHYSICAL_ADDRESS *Memory
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SmmInternalAllocatePages (Type, MemoryType, NumberOfPages, Memory);
+ if (!EFI_ERROR (Status)) {
+ SmmCoreUpdateProfile ((EFI_PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS (0), MemoryProfileActionAllocatePages, MemoryType, EFI_PAGES_TO_SIZE (NumberOfPages), (VOID *) (UINTN) *Memory);
+ }
+ return Status;
+}
+
+/**
Internal Function. Merge two adjacent nodes.
@param First The first of two nodes to merge.
@@ -242,7 +271,7 @@ InternalMergeNodes ( **/
EFI_STATUS
EFIAPI
-SmmFreePages (
+SmmInternalFreePages (
IN EFI_PHYSICAL_ADDRESS Memory,
IN UINTN NumberOfPages
)
@@ -294,6 +323,33 @@ SmmFreePages ( }
/**
+ Frees previous allocated pages.
+
+ @param Memory Base address of memory being freed.
+ @param NumberOfPages The number of pages to free.
+
+ @retval EFI_NOT_FOUND Could not find the entry that covers the range.
+ @retval EFI_INVALID_PARAMETER Address not aligned.
+ @return EFI_SUCCESS Pages successfully freed.
+
+**/
+EFI_STATUS
+EFIAPI
+SmmFreePages (
+ IN EFI_PHYSICAL_ADDRESS Memory,
+ IN UINTN NumberOfPages
+ )
+{
+ EFI_STATUS Status;
+
+ Status = SmmInternalFreePages (Memory, NumberOfPages);
+ if (!EFI_ERROR (Status)) {
+ SmmCoreUpdateProfile ((EFI_PHYSICAL_ADDRESS) (UINTN) RETURN_ADDRESS (0), MemoryProfileActionFreePages, 0, EFI_PAGES_TO_SIZE (NumberOfPages), (VOID *) (UINTN) Memory);
+ }
+ return Status;
+}
+
+/**
Add free SMRAM region for use by memory service.
@param MemBase Base address of memory region.
|