Add DxeCoreMemoryAllocationLib instance dedicated to DxeCore use.

The implementation borrows the DxeCore Memory Allocation services as the primitive
for memory allocation instead of using UEFI boot servces in an indirect way.
It is assumed that this library instance must be linked with DxeCore in this package.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5737 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/DxeCoreMemoryAllocationLib.inf b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/DxeCoreMemoryAllocationLib.inf
new file mode 100644 (file)
index 0000000..1221269
--- /dev/null
+++ b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/DxeCoreMemoryAllocationLib.inf
@@ -0,0 +1,48 @@
+#/** @file\r
+# Component description file for DxeCore Memory Allocation Library\r
+#\r
+# Memory Allocation Library instance dedicated to DXE Core.\r
+# The implementation borrows the DxeCore Memory Allocation services as the primitive\r
+# for memory allocation instead of using UEFI boot servces in an indirect way.\r
+# It is assumed that this library instance must be linked with DxeCore in this package. \r
+#\r
+# Copyright (c) 2008, Intel Corporation\r
+#\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
+#  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
+[Defines]\r
+  INF_VERSION                    = 0x00010005\r
+  BASE_NAME                      = DxeCoreMemoryAllocationLib\r
+  FILE_GUID                      = 632F3FAC-1CA4-4725-BAA2-BDECCF9A111C\r
+  MODULE_TYPE                    = DXE_CORE\r
+  VERSION_STRING                 = 1.0\r
+  LIBRARY_CLASS                  = MemoryAllocationLib|DXE_CORE\r
+  EDK_RELEASE_VERSION            = 0x00020000\r
+  EFI_SPECIFICATION_VERSION      = 0x00020000\r
+\r
+\r
+#\r
+#  VALID_ARCHITECTURES           = IA32 X64 IPF EBC\r
+#\r
+\r
+[Sources.common]\r
+  MemoryAllocationLib.c\r
+  DxeCoreMemoryAllocationServices.h\r
+\r
+[Packages]\r
+  MdePkg/MdePkg.dec\r
+\r
+\r
+[LibraryClasses]\r
+  DebugLib\r
+  BaseMemoryLib\r
+\r
+\r

diff --git a/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/DxeCoreMemoryAllocationServices.h b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/DxeCoreMemoryAllocationServices.h
new file mode 100644 (file)
index 0000000..7b6a3ea
--- /dev/null
+++ b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/DxeCoreMemoryAllocationServices.h
@@ -0,0 +1,106 @@
+/** @file\r
+  Contains function prototypes for Memory Services in DxeCore.\r
+\r
+  This header file borrows the DxeCore Memory Allocation services as the primitive\r
+  for memory allocation. \r
+\r
+  Copyright (c) 2008, 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
+\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
+#ifndef _DXE_CORE_MEMORY_ALLOCATION_SERVICES_H_\r
+#define _DXE_CORE_MEMORY_ALLOCATION_SERVICES_H_\r
+\r
+\r
+/**\r
+  Allocates pages from the memory map.\r
+\r
+  @param  Type                   The type of allocation to perform\r
+  @param  MemoryType             The type of memory to turn the allocated pages\r
+                                 into\r
+  @param  NumberOfPages          The number of pages to allocate\r
+  @param  Memory                 A pointer to receive the base allocated memory\r
+                                 address\r
+\r
+  @return Status. On success, Memory is filled in with the base address allocated\r
+  @retval EFI_INVALID_PARAMETER  Parameters violate checking rules defined in\r
+                                 spec.\r
+  @retval EFI_NOT_FOUND          Could not allocate pages match the requirement.\r
+  @retval EFI_OUT_OF_RESOURCES   No enough pages to allocate.\r
+  @retval EFI_SUCCESS            Pages successfully allocated.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+CoreAllocatePages (\r
+  IN EFI_ALLOCATE_TYPE      Type,\r
+  IN EFI_MEMORY_TYPE        MemoryType,\r
+  IN UINTN                  NumberOfPages,\r
+  IN OUT EFI_PHYSICAL_ADDRESS  *Memory\r
+  );\r
+\r
+\r
+\r
+/**\r
+  Frees previous allocated pages.\r
+\r
+  @param  Memory                 Base address of memory being freed\r
+  @param  NumberOfPages          The number of pages to free\r
+\r
+  @retval EFI_NOT_FOUND          Could not find the entry that covers the range\r
+  @retval EFI_INVALID_PARAMETER  Address not aligned\r
+  @return EFI_SUCCESS         -Pages successfully freed.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+CoreFreePages (\r
+  IN EFI_PHYSICAL_ADDRESS   Memory,\r
+  IN UINTN                  NumberOfPages\r
+  );\r
+\r
+\r
+/**\r
+  Allocate pool of a particular type.\r
+\r
+  @param  PoolType               Type of pool to allocate\r
+  @param  Size                   The amount of pool to allocate\r
+  @param  Buffer                 The address to return a pointer to the allocated\r
+                                 pool\r
+\r
+  @retval EFI_INVALID_PARAMETER  PoolType not valid\r
+  @retval EFI_OUT_OF_RESOURCES   Size exceeds max pool size or allocation failed.\r
+  @retval EFI_SUCCESS            Pool successfully allocated.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+CoreAllocatePool (\r
+  IN EFI_MEMORY_TYPE  PoolType,\r
+  IN UINTN            Size,\r
+  OUT VOID            **Buffer\r
+  );\r
+\r
+/**\r
+  Frees pool.\r
+\r
+  @param  Buffer                 The allocated pool entry to free\r
+\r
+  @retval EFI_INVALID_PARAMETER  Buffer is not a valid value.\r
+  @retval EFI_SUCCESS            Pool successfully freed.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+CoreFreePool (\r
+  IN VOID        *Buffer\r
+  );\r
+\r
+#endif
\ No newline at end of file

diff --git a/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c
new file mode 100644 (file)
index 0000000..be2c305
--- /dev/null
+++ b/MdeModulePkg/Library/DxeCoreMemoryAllocationLib/MemoryAllocationLib.c
@@ -0,0 +1,669 @@
+/** @file\r
+  Support routines for memory allocation routines based \r
+  on boot services for Dxe phase drivers.\r
+\r
+  Copyright (c) 2006 - 2008, 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
+\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 <PiDxe.h>\r
+\r
+#include <Library/MemoryAllocationLib.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/DebugLib.h>\r
+\r
+#include "DxeCoreMemoryAllocationServices.h"\r
+\r
+/**\r
+  Allocates one or more 4KB pages of a certain memory type.\r
+\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 UINTN            Pages\r
+  )\r
+{\r
+  EFI_STATUS            Status;\r
+  EFI_PHYSICAL_ADDRESS  Memory; \r
+\r
+  if (Pages == 0) {\r
+    return NULL;\r
+  }\r
+\r
+  Status = CoreAllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r
+  if (EFI_ERROR (Status)) {\r
+    return NULL;\r
+  }\r
+  return (VOID *) (UINTN) Memory;\r
+}\r
+\r
+/**\r
+  Allocates one or more 4KB pages of type EfiBootServicesData.\r
+\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
+  @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
+EFIAPI\r
+AllocatePages (\r
+  IN UINTN  Pages\r
+  )\r
+{\r
+  return InternalAllocatePages (EfiBootServicesData, Pages);\r
+}\r
+\r
+/**\r
+  Allocates one or more 4KB pages of type EfiRuntimeServicesData.\r
+\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
+  @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
+EFIAPI\r
+AllocateRuntimePages (\r
+  IN UINTN  Pages\r
+  )\r
+{\r
+  return InternalAllocatePages (EfiRuntimeServicesData, Pages);\r
+}\r
+\r
+/**\r
+  Allocates one or more 4KB pages of type EfiReservedMemoryType.\r
+\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
+  @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
+EFIAPI\r
+AllocateReservedPages (\r
+  IN UINTN  Pages\r
+  )\r
+{\r
+  return InternalAllocatePages (EfiReservedMemoryType, Pages);\r
+}\r
+\r
+/**\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
+  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.\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                Pointer to the buffer of pages to free.\r
+  @param  Pages                 The number of 4 KB pages to free.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+FreePages (\r
+  IN VOID   *Buffer,\r
+  IN UINTN  Pages\r
+  )\r
+{\r
+  EFI_STATUS  Status;\r
+\r
+  ASSERT (Pages != 0);\r
+  Status = CoreFreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);\r
+  ASSERT_EFI_ERROR (Status);\r
+}\r
+\r
+/**\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
+\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
+\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 UINTN            Pages,\r
+  IN UINTN            Alignment\r
+  )\r
+{\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
+  //\r
+  ASSERT ((Alignment & (Alignment - 1)) == 0);\r
+ \r
+  if (Pages == 0) {\r
+    return NULL;\r
+  }\r
+  if (Alignment > EFI_PAGE_SIZE) {\r
+    //\r
+    // Caculate 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         = CoreAllocatePages (AllocateAnyPages, 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 = CoreFreePages (Memory, UnalignedPages);\r
+      ASSERT_EFI_ERROR (Status);\r
+    }\r
+    Memory         = (EFI_PHYSICAL_ADDRESS) (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 = CoreFreePages (Memory, UnalignedPages);\r
+      ASSERT_EFI_ERROR (Status);\r
+    }\r
+  } else {\r
+    //\r
+    // Do not over-allocate pages in this case.\r
+    //\r
+    Status = CoreAllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);\r
+    if (EFI_ERROR (Status)) {\r
+      return NULL;\r
+    }\r
+    AlignedMemory  = (UINTN) Memory;\r
+  }\r
+  return (VOID *) AlignedMemory;\r
+}\r
+\r
+/**\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
+  If Alignment is not a power of two and Alignment is not zero, 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
+\r
+  @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+AllocateAlignedPages (\r
+  IN UINTN  Pages,\r
+  IN UINTN  Alignment\r
+  )\r
+{\r
+  return InternalAllocateAlignedPages (EfiBootServicesData, Pages, Alignment);\r
+}\r
+\r
+/**\r
+  Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.\r
+\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
+  If Alignment is not a power of two and Alignment is not zero, 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
+\r
+  @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+AllocateAlignedRuntimePages (\r
+  IN UINTN  Pages,\r
+  IN UINTN  Alignment\r
+  )\r
+{\r
+  return InternalAllocateAlignedPages (EfiRuntimeServicesData, Pages, Alignment);\r
+}\r
+\r
+/**\r
+  Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.\r
+\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
+  If Alignment is not a power of two and Alignment is not zero, 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
+\r
+  @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+AllocateAlignedReservedPages (\r
+  IN UINTN  Pages,\r
+  IN UINTN  Alignment\r
+  )\r
+{\r
+  return InternalAllocateAlignedPages (EfiReservedMemoryType, Pages, Alignment);\r
+}\r
+\r
+/**\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.\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                Pointer to the buffer of pages to free.\r
+  @param  Pages                 The number of 4 KB pages to free.\r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+FreeAlignedPages (\r
+  IN VOID   *Buffer,\r
+  IN UINTN  Pages\r
+  )\r
+{\r
+  EFI_STATUS  Status;\r
+\r
+  ASSERT (Pages != 0);\r
+  Status = CoreFreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);\r
+  ASSERT_EFI_ERROR (Status);\r
+}\r
+\r
+/**\r
+  Allocates a buffer of a certain pool type.\r
+\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
+  @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 UINTN            AllocationSize\r
+  )\r
+{\r
+  EFI_STATUS  Status;\r
+  VOID        *Memory;\r
+\r
+  Status = CoreAllocatePool (MemoryType, AllocationSize, &Memory);\r
+  if (EFI_ERROR (Status)) {\r
+    Memory = NULL;\r
+  }\r
+  return Memory;\r
+}\r
+\r
+/**\r
+  Allocates a buffer of type EfiBootServicesData.\r
+\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
+  @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
+EFIAPI\r
+AllocatePool (\r
+  IN UINTN  AllocationSize\r
+  )\r
+{\r
+  return InternalAllocatePool (EfiBootServicesData, AllocationSize);\r
+}\r
+\r
+/**\r
+  Allocates a buffer of type EfiRuntimeServicesData.\r
+\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
+  @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
+EFIAPI\r
+AllocateRuntimePool (\r
+  IN UINTN  AllocationSize\r
+  )\r
+{\r
+  return InternalAllocatePool (EfiRuntimeServicesData, AllocationSize);\r
+}\r
+\r
+/**\r
+  Allocates a buffer of type EfieservedMemoryType.\r
+\r
+  Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType 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
+  @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
+EFIAPI\r
+AllocateReservedPool (\r
+  IN UINTN  AllocationSize\r
+  )\r
+{\r
+  return InternalAllocatePool (EfiReservedMemoryType, AllocationSize);\r
+}\r
+\r
+/**\r
+  Allocates and zeros a buffer of a certian pool type.\r
+\r
+  Allocates the number bytes specified by AllocationSize of a certian 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
+  @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 UINTN            AllocationSize\r
+  ) \r
+{\r
+  VOID  *Memory;\r
+\r
+  Memory = InternalAllocatePool (PoolType, AllocationSize);\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.\r
+\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
+  @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
+EFIAPI\r
+AllocateZeroPool (\r
+  IN UINTN  AllocationSize\r
+  )\r
+{\r
+  return InternalAllocateZeroPool (EfiBootServicesData, AllocationSize);\r
+}\r
+\r
+/**\r
+  Allocates and zeros a buffer of type EfiRuntimeServicesData.\r
+\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
+  @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
+EFIAPI\r
+AllocateRuntimeZeroPool (\r
+  IN UINTN  AllocationSize\r
+  )\r
+{\r
+  return InternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);\r
+}\r
+\r
+/**\r
+  Allocates and zeros a buffer of type EfiReservedMemoryType.\r
+\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
+  @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
+EFIAPI\r
+AllocateReservedZeroPool (\r
+  IN UINTN  AllocationSize\r
+  )\r
+{\r
+  return InternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);\r
+}\r
+\r
+/**\r
+  Copies a buffer to an allocated buffer of a certian pool type.\r
+\r
+  Allocates the number bytes specified by AllocationSize of a certian 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
+  @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 UINTN            AllocationSize,\r
+  IN CONST VOID       *Buffer\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
+  Copies a buffer to an allocated buffer of type EfiBootServicesData.\r
+\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
+  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
+EFIAPI\r
+AllocateCopyPool (\r
+  IN UINTN       AllocationSize,\r
+  IN CONST VOID  *Buffer\r
+  )\r
+{\r
+  return InternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);\r
+}\r
+\r
+/**\r
+  Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.\r
+\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
+  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
+EFIAPI\r
+AllocateRuntimeCopyPool (\r
+  IN UINTN       AllocationSize,\r
+  IN CONST VOID  *Buffer\r
+  )\r
+{\r
+  return InternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);\r
+}\r
+\r
+/**\r
+  Copies a buffer to an allocated buffer of type EfiReservedMemoryType.\r
+\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
+  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
+EFIAPI\r
+AllocateReservedCopyPool (\r
+  IN UINTN       AllocationSize,\r
+  IN CONST VOID  *Buffer\r
+  )\r
+{\r
+  return InternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);\r
+}\r
+\r
+/**\r
+  Frees a buffer that was previously allocated with one of the pool allocation functions in the\r
+  Memory Allocation Library.\r
+\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.\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
+\r
+**/\r
+VOID\r
+EFIAPI\r
+FreePool (\r
+  IN VOID   *Buffer\r
+  )\r
+{\r
+  EFI_STATUS    Status;\r
+\r
+  Status = CoreFreePool (Buffer);\r
+  ASSERT_EFI_ERROR (Status);\r
+}\r
+\r