--- /dev/null
+/*++ @file\r
+\r
+ Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>\r
+\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
+**/\r
+\r
+#include <Base.h>\r
+#include <Library/BaseMemoryLib.h>\r
+#include <Library/MemoryAllocationLib.h>\r
+\r
+#include <stdlib.h>\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 (VOID*) malloc (AllocationSize);\r
+}\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
+ VOID *Buffer;\r
+\r
+ Buffer = AllocatePool (AllocationSize);\r
+ if (Buffer == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ ZeroMem (Buffer, AllocationSize);\r
+\r
+ return Buffer;\r
+}\r
+\r
+\r
+/**\r
+ Reallocates a buffer of type EfiBootServicesData.\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
+ 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 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
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+ReallocatePool (\r
+ IN UINTN OldSize,\r
+ IN UINTN NewSize,\r
+ IN VOID *OldBuffer OPTIONAL\r
+ )\r
+{\r
+ VOID *NewBuffer;\r
+\r
+ NewBuffer = AllocatePool (NewSize);\r
+ if (NewBuffer == NULL) {\r
+ return NULL;\r
+ }\r
+\r
+ if (OldBuffer != NULL) {\r
+ if (OldSize > 0) {\r
+ CopyMem (NewBuffer, OldBuffer, OldSize);\r
+ }\r
+\r
+ FreePool (OldBuffer);\r
+ }\r
+\r
+ return NewBuffer;\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
+\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
+ VOID *Memory;\r
+\r
+ Memory = AllocatePool (AllocationSize);\r
+ if (Memory != NULL) {\r
+ Memory = CopyMem (Memory, Buffer, AllocationSize);\r
+ }\r
+ return Memory;\r
+}\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. If it is not possible to free pool\r
+ resources, then this function will perform no actions.\r
+\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
+ free ((void *) Buffer);\r
+}\r
+\r