4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Support routines for memory allocation routines based
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync on boot services for Dxe phase drivers.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync are licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync which accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of a certain memory type.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages of a certain memory type and returns a pointer to the allocated
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If there is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param MemoryType The type of memory to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of type EfiBootServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages of type EfiBootServicesData and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is returned. If there is not enough memory remaining to satisfy the request, then NULL is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocatePages (EfiBootServicesData, Pages);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of type EfiRuntimeServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages of type EfiRuntimeServicesData and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is returned. If there is not enough memory remaining to satisfy the request, then NULL is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocatePages (EfiRuntimeServicesData, Pages);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of type EfiReservedMemoryType.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages of type EfiReservedMemoryType and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. The buffer returned is aligned on a 4KB boundary. If Pages is 0, then NULL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is returned. If there is not enough memory remaining to satisfy the request, then NULL is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocatePages (EfiReservedMemoryType, Pages);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Frees one or more 4KB pages that were previously allocated with one of the page allocation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync functions in the Memory Allocation Library.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync must have been allocated on a previous call to the page allocation services of the Memory
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocation Library. If it is not possible to free allocated pages, then this function will
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync perform no actions.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer was not allocated with a page allocation function in the Memory Allocation Library,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Pages is zero, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The pointer to the buffer of pages to free.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to free.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = gBS->FreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of a certain memory type at a specified alignment.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages specified by Pages of a certain memory type with an alignment
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If there is not enough memory at the specified alignment remaining to satisfy the request, then
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is not a power of two and Alignment is not zero, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param MemoryType The type of memory to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Alignment The requested alignment of the allocation. Must be a power of two.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is zero, then byte alignment is used.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Alignment must be a power of two or zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Caculate the total number of pages since alignment is larger than page size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Make sure that Pages plus EFI_SIZE_TO_PAGES (Alignment) does not overflow.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, RealPages, &Memory);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync AlignedMemory = ((UINTN) Memory + AlignmentMask) & ~AlignmentMask;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync UnalignedPages = EFI_SIZE_TO_PAGES (AlignedMemory - (UINTN) Memory);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Free first unaligned page(s).
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Memory = (EFI_PHYSICAL_ADDRESS) (AlignedMemory + EFI_PAGES_TO_SIZE (Pages));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync UnalignedPages = RealPages - Pages - UnalignedPages;
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Free last unaligned page(s).
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync // Do not over-allocate pages in this case.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = gBS->AllocatePages (AllocateAnyPages, MemoryType, Pages, &Memory);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of type EfiBootServicesData at a specified alignment.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages specified by Pages of type EfiBootServicesData with an
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory at the specified alignment remaining to satisfy the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is not a power of two and Alignment is not zero, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Alignment The requested alignment of the allocation. Must be a power of two.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is zero, then byte alignment is used.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateAlignedPages (EfiBootServicesData, Pages, Alignment);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of type EfiRuntimeServicesData at a specified alignment.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages specified by Pages of type EfiRuntimeServicesData with an
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory at the specified alignment remaining to satisfy the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is not a power of two and Alignment is not zero, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Alignment The requested alignment of the allocation. Must be a power of two.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is zero, then byte alignment is used.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateAlignedPages (EfiRuntimeServicesData, Pages, Alignment);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates one or more 4KB pages of type EfiReservedMemoryType at a specified alignment.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number of 4KB pages specified by Pages of type EfiReservedMemoryType with an
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync alignment specified by Alignment. The allocated buffer is returned. If Pages is 0, then NULL is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory at the specified alignment remaining to satisfy the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is not a power of two and Alignment is not zero, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Alignment The requested alignment of the allocation. Must be a power of two.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Alignment is zero, then byte alignment is used.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateAlignedPages (EfiReservedMemoryType, Pages, Alignment);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Frees one or more 4KB pages that were previously allocated with one of the aligned page
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocation functions in the Memory Allocation Library.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Frees the number of 4KB pages specified by Pages from the buffer specified by Buffer. Buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync must have been allocated on a previous call to the aligned page allocation services of the Memory
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocation Library. If it is not possible to free allocated pages, then this function will
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync perform no actions.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer was not allocated with an aligned page allocation function in the Memory Allocation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Library, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Pages is zero, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The pointer to the buffer of pages to free.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Pages The number of 4 KB pages to free.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = gBS->FreePages ((EFI_PHYSICAL_ADDRESS) (UINTN) Buffer, Pages);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates a buffer of a certain pool type.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of a certain pool type and returns a
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param MemoryType The type of memory to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Status = gBS->AllocatePool (MemoryType, AllocationSize, &Memory);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates a buffer of type EfiBootServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiBootServicesData and returns a
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocatePool (EfiBootServicesData, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates a buffer of type EfiRuntimeServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData and returns
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocatePool (EfiRuntimeServicesData, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates a buffer of type EfiReservedMemoryType.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType and returns
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync a pointer to the allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned. If there is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocatePool (EfiReservedMemoryType, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros a buffer of a certain pool type.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of a certain pool type, clears the buffer
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a valid
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer of 0 size is returned. If there is not enough memory remaining to satisfy the request,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PoolType The type of memory to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Memory = InternalAllocatePool (PoolType, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros a buffer of type EfiBootServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, clears the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateZeroPool (EfiBootServicesData, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros a buffer of type EfiRuntimeServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, clears the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateZeroPool (EfiRuntimeServicesData, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros a buffer of type EfiReservedMemoryType.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, clears the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync buffer with zeros, and returns a pointer to the allocated buffer. If AllocationSize is 0, then a
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync valid buffer of 0 size is returned. If there is not enough memory remaining to satisfy the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateZeroPool (EfiReservedMemoryType, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copies a buffer to an allocated buffer of a certain pool type.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of a certain pool type, copies
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PoolType The type of pool to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The buffer to copy to the allocated buffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ASSERT (AllocationSize <= (MAX_ADDRESS - (UINTN) Buffer + 1));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Memory = InternalAllocatePool (PoolType, AllocationSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copies a buffer to an allocated buffer of type EfiBootServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiBootServicesData, copies
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The buffer to copy to the allocated buffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateCopyPool (EfiBootServicesData, AllocationSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copies a buffer to an allocated buffer of type EfiRuntimeServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiRuntimeServicesData, copies
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The buffer to copy to the allocated buffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateCopyPool (EfiRuntimeServicesData, AllocationSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Copies a buffer to an allocated buffer of type EfiReservedMemoryType.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType, copies
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync AllocationSize bytes from Buffer to the newly allocated buffer, and returns a pointer to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocated buffer. If AllocationSize is 0, then a valid buffer of 0 size is returned. If there
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is not enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer is NULL, then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If AllocationSize is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AllocationSize The number of bytes to allocate and zero.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The buffer to copy to the allocated buffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalAllocateCopyPool (EfiReservedMemoryType, AllocationSize, Buffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Reallocates a buffer of a specified memory type.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros the number bytes specified by NewSize from memory of the type
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync specified by PoolType. If OldBuffer is not NULL, then the smaller of OldSize and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OldBuffer is freed. A pointer to the newly allocated buffer is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If the allocation of the new buffer is successful and the smaller of NewSize and OldSize
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PoolType The type of pool to allocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldSize The size, in bytes, of OldBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param NewSize The size, in bytes, of the buffer to reallocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync parameter that may be NULL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NewBuffer = InternalAllocateZeroPool (PoolType, NewSize);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync CopyMem (NewBuffer, OldBuffer, MIN (OldSize, NewSize));
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Reallocates a buffer of type EfiBootServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros the number bytes specified by NewSize from memory of type
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OldBuffer is freed. A pointer to the newly allocated buffer is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If the allocation of the new buffer is successful and the smaller of NewSize and OldSize
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldSize The size, in bytes, of OldBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param NewSize The size, in bytes, of the buffer to reallocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync parameter that may be NULL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalReallocatePool (EfiBootServicesData, OldSize, NewSize, OldBuffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Reallocates a buffer of type EfiRuntimeServicesData.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros the number bytes specified by NewSize from memory of type
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OldBuffer is freed. A pointer to the newly allocated buffer is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If the allocation of the new buffer is successful and the smaller of NewSize and OldSize
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldSize The size, in bytes, of OldBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param NewSize The size, in bytes, of the buffer to reallocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync parameter that may be NULL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalReallocatePool (EfiRuntimeServicesData, OldSize, NewSize, OldBuffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Reallocates a buffer of type EfiReservedMemoryType.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocates and zeros the number bytes specified by NewSize from memory of type
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NewSize bytes are copied from OldBuffer to the newly allocated buffer, and
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync OldBuffer is freed. A pointer to the newly allocated buffer is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If NewSize is 0, then a valid buffer of 0 size is returned. If there is not
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync enough memory remaining to satisfy the request, then NULL is returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If the allocation of the new buffer is successful and the smaller of NewSize and OldSize
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldSize The size, in bytes, of OldBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param NewSize The size, in bytes, of the buffer to reallocate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param OldBuffer The buffer to copy to the allocated buffer. This is an optional
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync parameter that may be NULL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return A pointer to the allocated buffer or NULL if allocation fails.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync return InternalReallocatePool (EfiReservedMemoryType, OldSize, NewSize, OldBuffer);
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Frees a buffer that was previously allocated with one of the pool allocation functions in the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Memory Allocation Library.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Frees the buffer specified by Buffer. Buffer must have been allocated on a previous call to the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync pool allocation services of the Memory Allocation Library. If it is not possible to free pool
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync resources, then this function will perform no actions.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync If Buffer was not allocated with a pool allocation function in the Memory Allocation Library,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync then ASSERT().
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Buffer The pointer to the buffer to free.