mirror of https://github.com/acidanthera/audk.git
623 lines
23 KiB
C
623 lines
23 KiB
C
/** @file
|
||
Memory Allocation Library Services
|
||
|
||
Copyright (c) 2006, Intel Corporation
|
||
All rights reserved. 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
|
||
http://opensource.org/licenses/bsd-license.php
|
||
|
||
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
||
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||
|
||
Module Name: MemoryAllocationLib.h
|
||
|
||
**/
|
||
|
||
#ifndef __MEMORY_ALLOCATION_LIB_H__
|
||
#define __MEMORY_ALLOCATION_LIB_H__
|
||
|
||
/**
|
||
Allocates one or more 4KB pages of type EfiBootServicesData.
|
||
|
||
Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the
|
||
allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
|
||
is returned. If there is not enough memory remaining to satisfy the request, then NULL is
|
||
returned.
|
||
|
||
@param Pages The number of 4 KB pages to allocate.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocatePages (
|
||
IN UINTN Pages
|
||
);
|
||
|
||
/**
|
||
Allocates one or more 4KB pages of type EfiRuntimeServicesData.
|
||
|
||
Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
|
||
allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
|
||
is returned. If there is not enough memory remaining to satisfy the request, then NULL is
|
||
returned.
|
||
|
||
@param Pages The number of 4 KB pages to allocate.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateRuntimePages (
|
||
IN UINTN Pages
|
||
);
|
||
|
||
/**
|
||
Allocates one or more 4KB pages of type EfiReservedMemoryType.
|
||
|
||
Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the
|
||
allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
|
||
is returned. If there is not enough memory remaining to satisfy the request, then NULL is
|
||
returned.
|
||
|
||
@param Pages The number of 4 KB pages to allocate.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateReservedPages (
|
||
IN UINTN Pages
|
||
);
|
||
|
||
/**
|
||
Frees one or more 4KB pages that were previously allocated with one of the page allocation
|
||
functions in the Memory Allocation Library.
|
||
|
||
Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
|
||
must have been allocated on a previous call to the page allocation services of the Memory
|
||
Allocation Library.
|
||
If Buffer was not allocated with a page allocation function in the Memory Allocation Library,
|
||
then ASSERT().
|
||
If Pages is zero, then ASSERT().
|
||
|
||
@param Buffer Pointer to the buffer of pages to free.
|
||
@param Pages The number of 4 KB pages to free.
|
||
|
||
**/
|
||
VOID
|
||
EFIAPI
|
||
FreePages (
|
||
IN VOID *Buffer,
|
||
IN UINTN Pages
|
||
);
|
||
|
||
/**
|
||
Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.
|
||
|
||
Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
|
||
returned. If there is not enough memory at the specified alignment remaining to satisfy the
|
||
request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param Pages The number of 4 KB pages to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedPages (
|
||
IN UINTN Pages,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.
|
||
|
||
Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
|
||
returned. If there is not enough memory at the specified alignment remaining to satisfy the
|
||
request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param Pages The number of 4 KB pages to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedRuntimePages (
|
||
IN UINTN Pages,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.
|
||
|
||
Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
|
||
returned. If there is not enough memory at the specified alignment remaining to satisfy the
|
||
request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param Pages The number of 4 KB pages to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedReservedPages (
|
||
IN UINTN Pages,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Frees one or more 4KB pages that were previously allocated with one of the aligned page
|
||
allocation functions in the Memory Allocation Library.
|
||
|
||
Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
|
||
must have been allocated on a previous call to the aligned page allocation services of the Memory
|
||
Allocation Library.
|
||
If Buffer was not allocated with an aligned page allocation function in the Memory Allocation
|
||
Library, then ASSERT().
|
||
If Pages is zero, then ASSERT().
|
||
|
||
@param Buffer Pointer to the buffer of pages to free.
|
||
@param Pages The number of 4 KB pages to free.
|
||
|
||
**/
|
||
VOID
|
||
EFIAPI
|
||
FreeAlignedPages (
|
||
IN VOID *Buffer,
|
||
IN UINTN Pages
|
||
);
|
||
|
||
/**
|
||
Allocates a buffer of type EfiBootServicesData.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a
|
||
pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
|
||
returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocatePool (
|
||
IN UINTN AllocationSize
|
||
);
|
||
|
||
/**
|
||
Allocates a buffer of type EfiRuntimeServicesData.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns
|
||
a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
|
||
returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateRuntimePool (
|
||
IN UINTN AllocationSize
|
||
);
|
||
|
||
/**
|
||
Allocates a buffer of type EfieservedMemoryType.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType and returns
|
||
a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
|
||
returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateReservedPool (
|
||
IN UINTN AllocationSize
|
||
);
|
||
|
||
/**
|
||
Allocates and zeros a buffer of type EfiBootServicesData.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the
|
||
buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
|
||
valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
|
||
request, then NULL is returned.
|
||
|
||
@param AllocationSize The number of bytes to allocate and zero.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateZeroPool (
|
||
IN UINTN AllocationSize
|
||
);
|
||
|
||
/**
|
||
Allocates and zeros a buffer of type EfiRuntimeServicesData.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the
|
||
buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
|
||
valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
|
||
request, then NULL is returned.
|
||
|
||
@param AllocationSize The number of bytes to allocate and zero.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateRuntimeZeroPool (
|
||
IN UINTN AllocationSize
|
||
);
|
||
|
||
/**
|
||
Allocates and zeros a buffer of type EfiReservedMemoryType.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the
|
||
buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
|
||
valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
|
||
request, then NULL is returned.
|
||
|
||
@param AllocationSize The number of bytes to allocate and zero.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateReservedZeroPool (
|
||
IN UINTN AllocationSize
|
||
);
|
||
|
||
/**
|
||
Copies a buffer to an allocated buffer of type EfiBootServicesData.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies
|
||
AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
|
||
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
||
is not enough memory remaining to satisfy the request, then NULL is returned.
|
||
If Buffer is NULL, then ASSERT().
|
||
If AllocationSize is greater than (MAX_ADDRESS <20> Buffer + 1), then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate and zero.
|
||
@param Buffer The buffer to copy to the allocated buffer.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateCopyPool (
|
||
IN UINTN AllocationSize,
|
||
IN CONST VOID *Buffer
|
||
);
|
||
|
||
/**
|
||
Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies
|
||
AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
|
||
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
||
is not enough memory remaining to satisfy the request, then NULL is returned.
|
||
If Buffer is NULL, then ASSERT().
|
||
If AllocationSize is greater than (MAX_ADDRESS <20> Buffer + 1), then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate and zero.
|
||
@param Buffer The buffer to copy to the allocated buffer.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateRuntimeCopyPool (
|
||
IN UINTN AllocationSize,
|
||
IN CONST VOID *Buffer
|
||
);
|
||
|
||
/**
|
||
Copies a buffer to an allocated buffer of type EfiReservedMemoryType.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies
|
||
AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
|
||
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
||
is not enough memory remaining to satisfy the request, then NULL is returned.
|
||
If Buffer is NULL, then ASSERT().
|
||
If AllocationSize is greater than (MAX_ADDRESS <20> Buffer + 1), then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate and zero.
|
||
@param Buffer The buffer to copy to the allocated buffer.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateReservedCopyPool (
|
||
IN UINTN AllocationSize,
|
||
IN CONST VOID *Buffer
|
||
);
|
||
|
||
/**
|
||
Frees a buffer that was previously allocated with one of the pool allocation functions in the
|
||
Memory Allocation Library.
|
||
|
||
Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the
|
||
pool allocation services of the Memory Allocation Library.
|
||
If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,
|
||
then ASSERT().
|
||
|
||
@param Buffer Pointer to the buffer to free.
|
||
|
||
**/
|
||
VOID
|
||
EFIAPI
|
||
FreePool (
|
||
IN VOID *Buffer
|
||
);
|
||
|
||
/**
|
||
Allocates a buffer of type EfiBootServicesData at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
||
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
||
alignment remaining to satisfy the request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedPool (
|
||
IN UINTN AllocationSize,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates a buffer of type EfiRuntimeServicesData at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
||
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
||
alignment remaining to satisfy the request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedRuntimePool (
|
||
IN UINTN AllocationSize,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates a buffer of type EfieservedMemoryType at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
||
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
||
alignment remaining to satisfy the request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedReservedPool (
|
||
IN UINTN AllocationSize,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates and zeros a buffer of type EfiBootServicesData at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData with an
|
||
alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the
|
||
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
||
is not enough memory at the specified alignment remaining to satisfy the request, then NULL is
|
||
returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedZeroPool (
|
||
IN UINTN AllocationSize,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates and zeros a buffer of type EfiRuntimeServicesData at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData with an
|
||
alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the
|
||
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
||
is not enough memory at the specified alignment remaining to satisfy the request, then NULL is
|
||
returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedRuntimeZeroPool (
|
||
IN UINTN AllocationSize,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Allocates and zeros a buffer of type EfieservedMemoryType at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfieservedMemoryType with an
|
||
alignment specified by Alignment, clears the buffer with zeros, and returns a pointer to the
|
||
allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
|
||
is not enough memory at the specified alignment remaining to satisfy the request, then NULL is
|
||
returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedReservedZeroPool (
|
||
IN UINTN AllocationSize,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Copies a buffer to an allocated buffer of type EfiBootServicesData at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiBootServicesData type with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
||
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
||
alignment remaining to satisfy the request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Buffer The buffer to copy to the allocated buffer.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedCopyPool (
|
||
IN UINTN AllocationSize,
|
||
IN CONST VOID *Buffer,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Copies a buffer to an allocated buffer of type EfiRuntimeServicesData at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData type with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
||
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
||
alignment remaining to satisfy the request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Buffer The buffer to copy to the allocated buffer.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedRuntimeCopyPool (
|
||
IN UINTN AllocationSize,
|
||
IN CONST VOID *Buffer,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Copies a buffer to an allocated buffer of type EfiReservedMemoryType at a specified alignment.
|
||
|
||
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType type with an
|
||
alignment specified by Alignment. The allocated buffer is returned. If AllocationSize is 0,
|
||
then a valid buffer of 0 size is returned. If there is not enough memory at the specified
|
||
alignment remaining to satisfy the request, then NULL is returned.
|
||
If Alignment is not a power of two and Alignment is not zero, then ASSERT().
|
||
|
||
@param AllocationSize The number of bytes to allocate.
|
||
@param Buffer The buffer to copy to the allocated buffer.
|
||
@param Alignment The requested alignment of the allocation. Must be a power of two.
|
||
If Alignment is zero, then byte alignment is used.
|
||
|
||
@return A pointer to the allocated buffer or NULL if allocation fails.
|
||
|
||
**/
|
||
VOID *
|
||
EFIAPI
|
||
AllocateAlignedReservedCopyPool (
|
||
IN UINTN AllocationSize,
|
||
IN CONST VOID *Buffer,
|
||
IN UINTN Alignment
|
||
);
|
||
|
||
/**
|
||
Frees a buffer that was previously allocated with one of the aligned pool allocation functions
|
||
in the Memory Allocation Library.
|
||
|
||
Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the
|
||
aligned pool allocation services of the Memory Allocation Library.
|
||
If Buffer was not allocated with an aligned pool allocation function in the Memory Allocation
|
||
Library, then ASSERT().
|
||
|
||
@param Buffer Pointer to the buffer to free.
|
||
|
||
**/
|
||
VOID
|
||
EFIAPI
|
||
FreeAlignedPool (
|
||
IN VOID *Buffer
|
||
);
|
||
|
||
#endif
|