/** @file\r
- Support routines for memory allocation routines for use with drivers.\r
+ Support routines for memory allocation routines\r
+ based on PeiService for PEI phase drivers.\r
\r
- Copyright (c) 2006, Intel Corporation<BR>\r
- All rights reserved. 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
- http://opensource.org/licenses/bsd-license.php \r
+ Copyright (c) 2006 - 2018, 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
+ http://opensource.org/licenses/bsd-license.php.\r
\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
- Module Name: MemoryAllocationLib.c\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
\r
+#include <PiPei.h>\r
+\r
+\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/PeiServicesLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/DebugLib.h>\r
+#include <Library/HobLib.h>\r
\r
-/**\r
- Allocates the number of 4KB pages specified by Pages of a certain memory type.\r
\r
- @param MemoryType The type of memory to allocate.\r
- @param Pages The number of 4 KB pages to allocate.\r
+/**\r
+ Allocates one or more 4KB pages of a certain memory type.\r
\r
- @return A pointer to the allocated buffer. The buffer returned is aligned on a 4KB boundary.\r
- If Pages is 0, then NULL is returned.\r
+ Allocates the number of 4KB pages of a certain memory type and returns a pointer to the allocated\r
+ buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned.\r
If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
+ @param MemoryType The type of memory to allocate.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
**/\r
VOID *\r
InternalAllocatePages (\r
- IN EFI_MEMORY_TYPE MemoryType, \r
+ IN EFI_MEMORY_TYPE MemoryType,\r
IN UINTN Pages\r
)\r
{\r
EFI_STATUS Status;\r
- EFI_PHYSICAL_ADDRESS Memory; \r
- EFI_PEI_SERVICES **PeiServices;\r
+ EFI_PHYSICAL_ADDRESS Memory;\r
\r
if (Pages == 0) {\r
return NULL;\r
}\r
\r
- PeiServices = GetPeiServicesTablePointer ();\r
- Status = (*PeiServices)->AllocatePages (PeiServices, MemoryType, Pages, &Memory);\r
+ Status = PeiServicesAllocatePages (MemoryType, Pages, &Memory);\r
if (EFI_ERROR (Status)) {\r
- Memory = 0;\r
+ return NULL;\r
}\r
+\r
return (VOID *) (UINTN) Memory;\r
}\r
\r
/**\r
- Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData.\r
+ Allocates one or more 4KB pages of type EfiBootServicesData.\r
\r
- @param Pages The number of 4 KB pages to allocate.\r
+ Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the\r
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r
+ is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r
+ returned.\r
\r
- @return A pointer to the allocated buffer. The buffer returned is aligned on a 4KB boundary.\r
- If Pages is 0, then NULL is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData. \r
+ Allocates one or more 4KB pages of type EfiRuntimeServicesData.\r
\r
- @param Pages The number of 4 KB pages to allocate.\r
+ Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the\r
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r
+ is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r
+ returned.\r
\r
- @return A pointer to the allocated buffer. The buffer returned is aligned on a 4KB boundary.\r
- If Pages is 0, then NULL is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType. \r
+ Allocates one or more 4KB pages of type EfiReservedMemoryType.\r
\r
- @param Pages The number of 4 KB pages to allocate.\r
+ Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the\r
+ allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL\r
+ is returned. If there is not enough memory remaining to satisfy the request, then NULL is\r
+ returned.\r
\r
- @return A pointer to the allocated buffer. The buffer returned is aligned on a 4KB boundary.\r
- If Pages is 0, then NULL is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Frees one or more 4KB pages that were previously allocated with \r
- one of the page allocation functions in the Memory Allocation Library.\r
+ Frees one or more 4KB pages that were previously allocated with one of the page allocation\r
+ functions in the Memory Allocation Library.\r
\r
- @param Buffer Pointer to the buffer of pages to free.\r
- @param Pages The number of 4 KB pages to free.\r
+ Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r
+ must have been allocated on a previous call to the page allocation services of the Memory\r
+ Allocation Library. If it is not possible to free allocated pages, then this function will\r
+ perform no actions.\r
+\r
+ If Buffer was not allocated with a page allocation function in the Memory Allocation Library,\r
+ then ASSERT().\r
+ If Pages is zero, then ASSERT().\r
+\r
+ @param Buffer The pointer to the buffer of pages to free.\r
+ @param Pages The number of 4 KB pages to free.\r
\r
**/\r
VOID\r
IN UINTN Pages\r
)\r
{\r
- //\r
- // PEI phase does not support to free pages, so leave it as NOP.\r
- //\r
+ EFI_STATUS Status;\r
+\r
+ ASSERT (Pages != 0);\r
+ Status = PeiServicesFreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);\r
+ ASSERT_EFI_ERROR (Status);\r
}\r
\r
/**\r
- Allocates the number of 4KB pages specified by Pages of a certian memory type \r
- with an alignment specified by Alignment. \r
+ Allocates one or more 4KB pages of a certain memory type at a specified alignment.\r
+\r
+ Allocates the number of 4KB pages specified by Pages of a certain memory type with an alignment\r
+ specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is returned.\r
+ If there is not enough memory at the specified alignment remaining to satisfy the request, then\r
+ NULL is returned.\r
+ If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r
+ If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r
\r
- @param MemoryType The type of memory to allocate.\r
- @param Pages The number of 4 KB pages to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ @param MemoryType The type of memory to allocate.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+ @param Alignment The requested alignment of the allocation.\r
+ Must be a power of two.\r
+ If Alignment is zero, then byte alignment is used.\r
\r
- @return The allocated buffer is returned. If Pages is 0, then NULL is returned.\r
- If there is not enough memory at the specified alignment remaining to satisfy the request, then NULL is returned.\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
InternalAllocateAlignedPages (\r
- IN EFI_MEMORY_TYPE MemoryType, \r
+ IN EFI_MEMORY_TYPE MemoryType,\r
IN UINTN Pages,\r
IN UINTN Alignment\r
)\r
{\r
- VOID *Memory;\r
- UINTN AlignmentMask;\r
+ EFI_STATUS Status;\r
+ EFI_PHYSICAL_ADDRESS Memory;\r
+ UINTN AlignedMemory;\r
+ UINTN AlignmentMask;\r
+ UINTN UnalignedPages;\r
+ UINTN RealPages;\r
\r
//\r
// Alignment must be a power of two or zero.\r
if (Pages == 0) {\r
return NULL;\r
}\r
- //\r
- // We would rather waste some memory to save PEI code size.\r
- //\r
- Memory = InternalAllocatePages (MemoryType, Pages + EFI_SIZE_TO_PAGES (Alignment));\r
- if (Alignment == 0) {\r
- AlignmentMask = Alignment;\r
+ if (Alignment > EFI_PAGE_SIZE) {\r
+ //\r
+ // Calculate the total number of pages since alignment is larger than page size.\r
+ //\r
+ AlignmentMask = Alignment - 1;\r
+ RealPages = Pages + EFI_SIZE_TO_PAGES (Alignment);\r
+ //\r
+ // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.\r
+ //\r
+ ASSERT (RealPages > Pages);\r
+\r
+ Status = PeiServicesAllocatePages (MemoryType, RealPages, &Memory);\r
+ if (EFI_ERROR (Status)) {\r
+ return NULL;\r
+ }\r
+ AlignedMemory = ((UINTN) Memory + AlignmentMask) & ~AlignmentMask;\r
+ UnalignedPages = EFI_SIZE_TO_PAGES (AlignedMemory - (UINTN) Memory);\r
+ if (UnalignedPages > 0) {\r
+ //\r
+ // Free first unaligned page(s).\r
+ //\r
+ Status = PeiServicesFreePages (Memory, UnalignedPages);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
+ Memory = AlignedMemory + EFI_PAGES_TO_SIZE (Pages);\r
+ UnalignedPages = RealPages - Pages - UnalignedPages;\r
+ if (UnalignedPages > 0) {\r
+ //\r
+ // Free last unaligned page(s).\r
+ //\r
+ Status = PeiServicesFreePages (Memory, UnalignedPages);\r
+ ASSERT_EFI_ERROR (Status);\r
+ }\r
} else {\r
- AlignmentMask = Alignment - 1; \r
+ //\r
+ // Do not over-allocate pages in this case.\r
+ //\r
+ Status = PeiServicesAllocatePages (MemoryType, Pages, &Memory);\r
+ if (EFI_ERROR (Status)) {\r
+ return NULL;\r
+ }\r
+ AlignedMemory = (UINTN) Memory;\r
}\r
- return (VOID *) (UINTN) (((UINTN) Memory + AlignmentMask) & ~AlignmentMask);\r
+ return (VOID *) AlignedMemory;\r
}\r
\r
/**\r
- Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData\r
- with an alignment specified by Alignment. \r
+ Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.\r
+\r
+ Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an\r
+ alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r
+ returned. If there is not enough memory at the specified alignment remaining to satisfy the\r
+ request, then NULL is returned.\r
+\r
+ If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r
+ If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r
\r
- @param Pages The number of 4 KB pages to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+ @param Alignment The requested alignment of the allocation.\r
+ Must be a power of two.\r
+ If Alignment is zero, then byte alignment is used.\r
\r
- @return The allocated buffer is returned. If Pages is 0, then NULL is returned.\r
- If there is not enough memory at the specified alignment remaining to satisfy the request, then NULL is returned.\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData\r
- with an alignment specified by Alignment. \r
+ Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r
\r
- @param Pages The number of 4 KB pages to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an\r
+ alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r
+ returned. If there is not enough memory at the specified alignment remaining to satisfy the\r
+ request, then NULL is returned.\r
\r
- @return The allocated buffer is returned. If Pages is 0, then NULL is returned.\r
- If there is not enough memory at the specified alignment remaining to satisfy the request, then NULL is returned.\r
+ If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r
+ If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r
+\r
+ @param Pages The number of 4 KB pages to allocate.\r
+ @param Alignment The requested alignment of the allocation.\r
+ Must be a power of two.\r
+ If Alignment is zero, then byte alignment is used.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
/**\r
Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r
\r
- @param Pages The number of 4 KB pages to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an\r
+ alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is\r
+ returned. If there is not enough memory at the specified alignment remaining to satisfy the\r
+ request, then NULL is returned.\r
+\r
+ If Alignment is not a power of two and Alignment is not zero, then ASSERT().\r
+ If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().\r
\r
- @return The allocated buffer is returned. If Pages is 0, then NULL is returned.\r
- If there is not enough memory at the specified alignment remaining to satisfy the request, then NULL is returned.\r
+ @param Pages The number of 4 KB pages to allocate.\r
+ @param Alignment The requested alignment of the allocation.\r
+ Must be a power of two.\r
+ If Alignment is zero, then byte alignment is used.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Frees one or more 4KB pages that were previously allocated with \r
- one of the aligned page allocation functions in the Memory Allocation Library.\r
+ Frees one or more 4KB pages that were previously allocated with one of the aligned page\r
+ allocation functions in the Memory Allocation Library.\r
+\r
+ Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer\r
+ must have been allocated on a previous call to the aligned page allocation services of the Memory\r
+ Allocation Library. If it is not possible to free allocated pages, then this function will\r
+ perform no actions.\r
\r
- @param Buffer Pointer to the buffer of pages to free.\r
- @param Pages The number of 4 KB pages to free.\r
+ If Buffer was not allocated with an aligned page allocation function in the Memory Allocation\r
+ Library, then ASSERT().\r
+ If Pages is zero, then ASSERT().\r
+\r
+ @param Buffer The pointer to the buffer of pages to free.\r
+ @param Pages The number of 4 KB pages to free.\r
\r
**/\r
VOID\r
IN UINTN Pages\r
)\r
{\r
- //\r
- // PEI phase does not support to free pages, so leave it as NOP.\r
- //\r
+ EFI_STATUS Status;\r
+\r
+ ASSERT (Pages != 0);\r
+ Status = PeiServicesFreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);\r
+ ASSERT_EFI_ERROR (Status);\r
}\r
\r
/**\r
- Allocates a buffer of a certain memory type.\r
+ Allocates a buffer of a certain pool type.\r
\r
- @param MemoryType The type of memory to allocate.\r
- @param AllocationSize The number of bytes to allocate.\r
+ Allocates the number bytes specified by AllocationSize of a certain pool type and returns a\r
+ pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r
+ returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param MemoryType The type of memory to allocate.\r
+ @param AllocationSize The number of bytes to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
InternalAllocatePool (\r
- IN EFI_MEMORY_TYPE MemoryType, \r
+ IN EFI_MEMORY_TYPE MemoryType,\r
IN UINTN AllocationSize\r
)\r
{\r
//\r
- // If we need lots of small runtime/reserved memory type from PEI in the future, \r
- // we can consider providing a more complex algorithm that allocates runtime pages and \r
- // provide pool allocations from those pages. \r
+ // If we need lots of small runtime/reserved memory type from PEI in the future,\r
+ // we can consider providing a more complex algorithm that allocates runtime pages and\r
+ // provide pool allocations from those pages.\r
//\r
return InternalAllocatePages (MemoryType, EFI_SIZE_TO_PAGES (AllocationSize));\r
}\r
/**\r
Allocates a buffer of type EfiBootServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
+ Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a\r
+ pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r
+ returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param AllocationSize The number of bytes to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
)\r
{\r
EFI_STATUS Status;\r
- EFI_PEI_SERVICES **PeiServices;\r
VOID *Buffer;\r
- \r
- PeiServices = GetPeiServicesTablePointer ();\r
\r
- Status = (*PeiServices)->AllocatePool (PeiServices, AllocationSize, &Buffer);\r
+ Status = PeiServicesAllocatePool (AllocationSize, &Buffer);\r
if (EFI_ERROR (Status)) {\r
Buffer = NULL;\r
}\r
/**\r
Allocates a buffer of type EfiRuntimeServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
+ Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns\r
+ a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r
+ returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param AllocationSize The number of bytes to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
/**\r
Allocates a buffer of type EfiReservedMemoryType.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
+ Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType and returns\r
+ a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is\r
+ returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param AllocationSize The number of bytes to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Allocates and zeros a buffer of a certian pool type.\r
+ Allocates and zeros a buffer of a certain pool type.\r
\r
- @param PoolType The type of memory to allocate.\r
- @param AllocationSize The number of bytes to allocate and zero.\r
+ Allocates the number bytes specified by AllocationSize of a certain pool type, clears the buffer\r
+ with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a valid\r
+ buffer of 0 size is returned. If there is not enough memory remaining to satisfy the request,\r
+ then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param PoolType The type of memory to allocate.\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
InternalAllocateZeroPool (\r
- IN EFI_MEMORY_TYPE PoolType, \r
+ IN EFI_MEMORY_TYPE PoolType,\r
IN UINTN AllocationSize\r
- ) \r
+ )\r
{\r
VOID *Memory;\r
\r
/**\r
Allocates and zeros a buffer of type EfiBootServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate and zero.\r
+ Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the\r
+ buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r
+ valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r
+ request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
/**\r
Allocates and zeros a buffer of type EfiRuntimeServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate and zero.\r
+ Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the\r
+ buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r
+ valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r
+ request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
/**\r
Allocates and zeros a buffer of type EfiReservedMemoryType.\r
\r
- @param AllocationSize The number of bytes to allocate and zero.\r
+ Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the\r
+ buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a\r
+ valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the\r
+ request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Copies a buffer to an allocated buffer of a certian memory type. \r
+ Copies a buffer to an allocated buffer of a certain pool type.\r
\r
- @param MemoryType The type of pool to allocate.\r
- @param AllocationSize The number of bytes to allocate and zero.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
+ Allocates the number bytes specified by AllocationSize of a certain pool type, copies\r
+ AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r
+ allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r
+ is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ If Buffer is NULL, then ASSERT().\r
+ If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @param PoolType The type of pool to allocate.\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+ @param Buffer The buffer to copy to the allocated buffer.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
InternalAllocateCopyPool (\r
- IN EFI_MEMORY_TYPE PoolType, \r
+ IN EFI_MEMORY_TYPE PoolType,\r
IN UINTN AllocationSize,\r
IN CONST VOID *Buffer\r
- ) \r
+ )\r
{\r
VOID *Memory;\r
\r
+ ASSERT (Buffer != NULL);\r
+ ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r
+\r
Memory = InternalAllocatePool (PoolType, AllocationSize);\r
if (Memory != NULL) {\r
Memory = CopyMem (Memory, Buffer, AllocationSize);\r
}\r
return Memory;\r
-} \r
+}\r
\r
/**\r
- Copies a buffer to an allocated buffer of type EfiBootServicesData. \r
+ Copies a buffer to an allocated buffer of type EfiBootServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
+ Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies\r
+ AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r
+ allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r
+ is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ If Buffer is NULL, then ASSERT().\r
+ If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+ @param Buffer The buffer to copy to the allocated buffer.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
{\r
VOID *Memory;\r
\r
+ ASSERT (Buffer != NULL);\r
+ ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));\r
+\r
Memory = AllocatePool (AllocationSize);\r
if (Memory != NULL) {\r
Memory = CopyMem (Memory, Buffer, AllocationSize);\r
}\r
\r
/**\r
- Copies a buffer to an allocated buffer of type EfiRuntimeServicesData. \r
+ Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
+ Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies\r
+ AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r
+ allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r
+ is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ If Buffer is NULL, then ASSERT().\r
+ If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+ @param Buffer The buffer to copy to the allocated buffer.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Copies a buffer to an allocated buffer of type EfiReservedMemoryType. \r
+ Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
+ Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies\r
+ AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the\r
+ allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there\r
+ is not enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ If Buffer is NULL, then ASSERT().\r
+ If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r
+\r
+ @param AllocationSize The number of bytes to allocate and zero.\r
+ @param Buffer The buffer to copy to the allocated buffer.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
}\r
\r
/**\r
- Copies a buffer to an allocated buffer of type EfiReservedMemoryType at a specified alignment.\r
-\r
- @param Buffer Pointer to the buffer to free.\r
+ Reallocates a buffer of a specified memory type.\r
\r
-**/\r
-VOID\r
-EFIAPI\r
-FreePool (\r
- IN VOID *Buffer\r
- )\r
-{\r
- //\r
- // PEI phase does not support to free pool, so leave it as NOP.\r
- //\r
-}\r
+ Allocates and zeros the number bytes specified by NewSize from memory of the type\r
+ specified by PoolType. If OldBuffer is not NULL, then the smaller of OldSize and\r
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r
+ enough memory remaining to satisfy the request, then NULL is returned.\r
\r
-/**\r
- Allocates a buffer of a certain pool type at a specified alignment.\r
+ If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r
+ is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r
\r
- @param PoolType The type of pool to allocate.\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used.\r
+ @param PoolType The type of pool to allocate.\r
+ @param OldSize The size, in bytes, of OldBuffer.\r
+ @param NewSize The size, in bytes, of the buffer to reallocate.\r
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an\r
+ optional parameter that may be NULL.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
-InternalAllocateAlignedPool (\r
+InternalReallocatePool (\r
IN EFI_MEMORY_TYPE PoolType,\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
+ IN UINTN OldSize,\r
+ IN UINTN NewSize,\r
+ IN VOID *OldBuffer OPTIONAL\r
)\r
{\r
- VOID *RawAddress;\r
- UINTN AlignedAddress;\r
- UINTN AlignmentMask;\r
+ VOID *NewBuffer;\r
\r
- //\r
- // Alignment must be a power of two or zero.\r
- //\r
- ASSERT ((Alignment & (Alignment - 1)) == 0);\r
- \r
- if (Alignment == 0) {\r
- AlignmentMask = Alignment;\r
- } else {\r
- AlignmentMask = Alignment - 1;\r
+ NewBuffer = InternalAllocateZeroPool (PoolType, NewSize);\r
+ if (NewBuffer != NULL && OldBuffer != NULL) {\r
+ CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));\r
+ FreePool (OldBuffer);\r
}\r
-\r
- RawAddress = InternalAllocatePool (PoolType, AllocationSize + AlignmentMask);\r
- \r
- AlignedAddress = ((UINTN) RawAddress + AlignmentMask) & ~AlignmentMask;\r
- \r
- return (VOID *) AlignedAddress;\r
+ return NewBuffer;\r
}\r
\r
/**\r
- Allocates a buffer of type EfiBootServicesData at a specified alignment.\r
-\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-AllocateAlignedPool (\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
- )\r
-{\r
- VOID *RawAddress;\r
- UINTN AlignedAddress;\r
- UINTN AlignmentMask;\r
-\r
- //\r
- // Alignment must be a power of two or zero.\r
- //\r
- ASSERT ((Alignment & (Alignment - 1)) == 0);\r
+ Reallocates a buffer of type EfiBootServicesData.\r
\r
- if (Alignment == 0) {\r
- AlignmentMask = Alignment;\r
- } else {\r
- AlignmentMask = Alignment - 1;\r
- }\r
+ Allocates and zeros the number bytes specified by NewSize from memory of type\r
+ EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r
+ enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- RawAddress = AllocatePool (AllocationSize + AlignmentMask);\r
- \r
- AlignedAddress = ((UINTN) RawAddress + AlignmentMask) & ~AlignmentMask;\r
- \r
- return (VOID *) AlignedAddress;\r
-}\r
+ If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r
+ is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r
\r
-/**\r
- Allocates a buffer of type EfiRuntimeServicesData at a specified alignment.\r
+ @param OldSize The size, in bytes, of OldBuffer.\r
+ @param NewSize The size, in bytes, of the buffer to reallocate.\r
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r
+ parameter that may be NULL.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
EFIAPI\r
-AllocateAlignedRuntimePool (\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
+ReallocatePool (\r
+ IN UINTN OldSize,\r
+ IN UINTN NewSize,\r
+ IN VOID *OldBuffer OPTIONAL\r
)\r
{\r
- return InternalAllocateAlignedPool (EfiRuntimeServicesData, AllocationSize, Alignment);\r
+ return InternalReallocatePool (EfiBootServicesData, OldSize, NewSize, OldBuffer);\r
}\r
\r
/**\r
- Allocates a buffer of type EfiReservedMemoryType at a specified alignment.\r
+ Reallocates a buffer of type EfiRuntimeServicesData.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ Allocates and zeros the number bytes specified by NewSize from memory of type\r
+ EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and\r
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r
+ enough memory remaining to satisfy the request, then NULL is returned.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-AllocateAlignedReservedPool (\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
- )\r
-{\r
- return InternalAllocateAlignedPool (EfiReservedMemoryType, AllocationSize, Alignment);\r
-}\r
-\r
-/**\r
- Allocates and zeros a buffer of type EfiBootServicesData at a specified alignment.\r
-\r
- @param PoolType The type of pool to allocate.\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-InternalAllocateAlignedZeroPool (\r
- IN EFI_MEMORY_TYPE PoolType,\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
- )\r
-{\r
- VOID *Memory;\r
-\r
- Memory = InternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);\r
- if (Memory != NULL) {\r
- Memory = ZeroMem (Memory, AllocationSize);\r
- }\r
- return Memory;\r
-}\r
-\r
-/**\r
- Allocates and zeros a buffer of type EfiBootServicesData at a specified alignment.\r
-\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-AllocateAlignedZeroPool (\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
- )\r
-{\r
- VOID *Memory;\r
-\r
- Memory = AllocateAlignedPool (AllocationSize, Alignment);\r
- if (Memory != NULL) {\r
- Memory = ZeroMem (Memory, AllocationSize);\r
- }\r
- return Memory;\r
-}\r
-\r
-/**\r
- Allocates and zeros a buffer of type EfiRuntimeServicesData at a specified alignment.\r
-\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-AllocateAlignedRuntimeZeroPool (\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
- )\r
-{\r
- return InternalAllocateAlignedZeroPool (EfiRuntimeServicesData, AllocationSize, Alignment);\r
-}\r
+ If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r
+ is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r
\r
-/**\r
- Allocates and zeros a buffer of type EfiReservedMemoryType at a specified alignment.\r
+ @param OldSize The size, in bytes, of OldBuffer.\r
+ @param NewSize The size, in bytes, of the buffer to reallocate.\r
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an optional\r
+ parameter that may be NULL.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
EFIAPI\r
-AllocateAlignedReservedZeroPool (\r
- IN UINTN AllocationSize,\r
- IN UINTN Alignment\r
- )\r
-{\r
- return InternalAllocateAlignedZeroPool (EfiReservedMemoryType, AllocationSize, Alignment);\r
-}\r
-\r
-/**\r
- Copies a buffer to an allocated buffer of type EfiBootServicesData at a specified alignment.\r
-\r
- @param PoolType The type of pool to allocate.\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-InternalAllocateAlignedCopyPool (\r
- IN EFI_MEMORY_TYPE PoolType,\r
- IN UINTN AllocationSize,\r
- IN CONST VOID *Buffer,\r
- IN UINTN Alignment\r
+ReallocateRuntimePool (\r
+ IN UINTN OldSize,\r
+ IN UINTN NewSize,\r
+ IN VOID *OldBuffer OPTIONAL\r
)\r
{\r
- VOID *Memory;\r
- \r
- Memory = InternalAllocateAlignedPool (PoolType, AllocationSize, Alignment);\r
- if (Memory != NULL) {\r
- Memory = CopyMem (Memory, Buffer, AllocationSize);\r
- }\r
- return Memory;\r
+ return InternalReallocatePool (EfiRuntimeServicesData, OldSize, NewSize, OldBuffer);\r
}\r
\r
/**\r
- Copies a buffer to an allocated buffer of type EfiBootServicesData at a specified alignment.\r
-\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
-\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ Reallocates a buffer of type EfiReservedMemoryType.\r
\r
-**/\r
-VOID *\r
-EFIAPI\r
-AllocateAlignedCopyPool (\r
- IN UINTN AllocationSize,\r
- IN CONST VOID *Buffer,\r
- IN UINTN Alignment\r
- )\r
-{\r
- VOID *Memory;\r
- \r
- Memory = AllocateAlignedPool (AllocationSize, Alignment);\r
- if (Memory != NULL) {\r
- Memory = CopyMem (Memory, Buffer, AllocationSize);\r
- }\r
- return Memory;\r
-}\r
+ Allocates and zeros the number bytes specified by NewSize from memory of type\r
+ EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and\r
+ NewSize bytes are copied from OldBuffer to the newly allocated buffer, and\r
+ OldBuffer is freed. A pointer to the newly allocated buffer is returned.\r
+ If NewSize is 0, then a valid buffer of 0 size is returned. If there is not\r
+ enough memory remaining to satisfy the request, then NULL is returned.\r
\r
-/**\r
- Copies a buffer to an allocated buffer of type EfiRuntimeServicesData at a specified alignment.\r
+ If the allocation of the new buffer is successful and the smaller of NewSize and OldSize\r
+ is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ @param OldSize The size, in bytes, of OldBuffer.\r
+ @param NewSize The size, in bytes, of the buffer to reallocate.\r
+ @param OldBuffer The buffer to copy to the allocated buffer. This is an\r
+ optional parameter that may be NULL.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
\r
**/\r
VOID *\r
EFIAPI\r
-AllocateAlignedRuntimeCopyPool (\r
- IN UINTN AllocationSize,\r
- IN CONST VOID *Buffer,\r
- IN UINTN Alignment\r
+ReallocateReservedPool (\r
+ IN UINTN OldSize,\r
+ IN UINTN NewSize,\r
+ IN VOID *OldBuffer OPTIONAL\r
)\r
{\r
- return InternalAllocateAlignedCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer, Alignment);\r
+ return InternalReallocatePool (EfiReservedMemoryType, OldSize, NewSize, OldBuffer);\r
}\r
\r
/**\r
- Copies a buffer to an allocated buffer of type EfiReservedMemoryType at a specified alignment.\r
+ Frees a buffer that was previously allocated with one of the pool allocation functions in the\r
+ Memory Allocation Library.\r
\r
- @param AllocationSize The number of bytes to allocate.\r
- @param Buffer The buffer to copy to the allocated buffer.\r
- @param Alignment The requested alignment of the allocation. Must be a power of two.\r
- If Alignment is zero, then byte alignment is used.\r
+ Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the\r
+ pool allocation services of the Memory Allocation Library. If it is not possible to free pool\r
+ resources, then this function will perform no actions.\r
\r
- @return A pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned.\r
- If there is not enough memory remaining to satisfy the request, then NULL is returned.\r
-\r
-**/\r
-VOID *\r
-EFIAPI\r
-AllocateAlignedReservedCopyPool (\r
- IN UINTN AllocationSize,\r
- IN CONST VOID *Buffer,\r
- IN UINTN Alignment\r
- )\r
-{\r
- return InternalAllocateAlignedCopyPool (EfiReservedMemoryType, AllocationSize, Buffer, Alignment);\r
-}\r
-\r
-/**\r
- Frees a buffer that was previously allocated with one of the aligned pool allocation functions \r
- in the Memory Allocation Library.\r
+ If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,\r
+ then ASSERT().\r
\r
- @param Buffer Pointer to the buffer to free.\r
+ @param Buffer The pointer to the buffer to free.\r
\r
**/\r
VOID\r
EFIAPI\r
-FreeAlignedPool (\r
+FreePool (\r
IN VOID *Buffer\r
)\r
{\r
// PEI phase does not support to free pool, so leave it as NOP.\r
//\r
}\r
+\r
+\r
projects / mirror_edk2.git / blobdiff