Functions | |
VOID *EFIAPI | AllocatePages (IN UINTN Pages) |
VOID *EFIAPI | AllocateRuntimePages (IN UINTN Pages) |
VOID *EFIAPI | AllocateReservedPages (IN UINTN Pages) |
VOID EFIAPI | FreePages (IN VOID *Buffer, IN UINTN Pages) |
VOID *EFIAPI | AllocateAlignedPages (IN UINTN Pages, IN UINTN Alignment) |
VOID *EFIAPI | AllocateAlignedRuntimePages (IN UINTN Pages, IN UINTN Alignment) |
VOID *EFIAPI | AllocateAlignedReservedPages (IN UINTN Pages, IN UINTN Alignment) |
VOID EFIAPI | FreeAlignedPages (IN VOID *Buffer, IN UINTN Pages) |
VOID *EFIAPI | AllocatePool (IN UINTN AllocationSize) |
VOID *EFIAPI | AllocateRuntimePool (IN UINTN AllocationSize) |
VOID *EFIAPI | AllocateReservedPool (IN UINTN AllocationSize) |
VOID *EFIAPI | AllocateZeroPool (IN UINTN AllocationSize) |
VOID *EFIAPI | AllocateRuntimeZeroPool (IN UINTN AllocationSize) |
VOID *EFIAPI | AllocateReservedZeroPool (IN UINTN AllocationSize) |
VOID *EFIAPI | AllocateCopyPool (IN UINTN AllocationSize, IN CONST VOID *Buffer) |
VOID *EFIAPI | AllocateRuntimeCopyPool (IN UINTN AllocationSize, IN CONST VOID *Buffer) |
VOID *EFIAPI | AllocateReservedCopyPool (IN UINTN AllocationSize, IN CONST VOID *Buffer) |
VOID *EFIAPI | ReallocatePool (IN UINTN OldSize, IN UINTN NewSize, IN VOID *OldBuffer) |
VOID *EFIAPI | ReallocateRuntimePool (IN UINTN OldSize, IN UINTN NewSize, IN VOID *OldBuffer) |
VOID *EFIAPI | ReallocateReservedPool (IN UINTN OldSize, IN UINTN NewSize, IN VOID *OldBuffer) |
VOID EFIAPI | FreePool (IN VOID *Buffer) |
The Memory Allocation Library abstracts various common memory allocation operations. This library allows code to be written in a phase-independent manner because the allocation of memory in PEI, DXE, and SMM (for example) is done via a different mechanism. Using a common library interface makes it much easier to port algorithms from phase to phase.
Copyright (c) 2006 - 2013, 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.
VOID* EFIAPI AllocateAlignedPages | ( | IN UINTN | Pages, | |
IN UINTN | Alignment | |||
) |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
References EfiBootServicesData, EfiRuntimeServicesData, and InternalAllocateAlignedPages().
VOID* EFIAPI AllocateAlignedReservedPages | ( | 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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
References EfiReservedMemoryType, InternalAllocateAlignedPages(), and NULL.
VOID* EFIAPI AllocateAlignedRuntimePages | ( | 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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
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(). If Pages plus EFI_SIZE_TO_PAGES (Alignment) overflows, then ASSERT().
Pages | The number of 4 KB pages to allocate. | |
Alignment | The requested alignment of the allocation. Must be a power of two. If Alignment is zero, then byte alignment is used. |
References EfiRuntimeServicesData, and InternalAllocateAlignedPages().
VOID* EFIAPI AllocateCopyPool | ( | IN UINTN | AllocationSize, | |
IN CONST VOID * | Buffer | |||
) |
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 - Buffer + 1), then ASSERT().
AllocationSize | The number of bytes to allocate and zero. | |
Buffer | The buffer to copy to the allocated buffer. |
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 - Buffer + 1), then ASSERT().
AllocationSize | The number of bytes to allocate and zero. | |
Buffer | The buffer to copy to the allocated buffer. |
References AllocatePool(), ASSERT, CopyMem(), EfiBootServicesData, EfiRuntimeServicesData, InternalAllocateCopyPool(), MAX_ADDRESS, NULL, and VOID.
Referenced by AddUnicodeString(), AddUnicodeString2(), DevPathToTextUsbWWID(), ExtractGuidedSectionRegisterHandlers(), GetParamByNodeName(), HstiAipGetInfo(), HstiAipGetSupportedTypes(), HstiLibSetTable(), InternalPeiServicesInstallFvInfoPpi(), UefiDevicePathLibConvertDevicePathToText(), UefiDevicePathLibDuplicateDevicePath(), and UefiDevicePathLibStrDuplicate().
VOID* EFIAPI AllocatePages | ( | IN UINTN | Pages | ) |
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.
Pages | The number of 4 KB pages to allocate. |
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.
Pages | The number of 4 KB pages to allocate. |
References EfiBootServicesData, EfiRuntimeServicesData, and InternalAllocatePages().
Referenced by PeriodicSmiEnable().
VOID* EFIAPI AllocatePool | ( | IN UINTN | AllocationSize | ) |
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.
AllocationSize | The number of bytes to allocate. |
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.
AllocationSize | The number of bytes to allocate. |
References EFI_ERROR, EfiBootServicesData, EfiRuntimeServicesData, InternalAllocatePool(), NULL, PeiServicesAllocatePool(), and VOID.
Referenced by AddUnicodeString(), AddUnicodeString2(), AllocateCopyPool(), AllocateZeroPool(), AsciiInternalPrint(), AsciiPrintXY(), CatVSPrint(), DevPathToTextUri(), EnlargeFreePeriodicSmiLibraryHandlerList(), FileDevicePath(), GetFileBufferByFilePath(), GetVariable(), GetVariable2(), InternalHstiRecordErrorString(), InternalPeiServicesInstallFvInfoPpi(), InternalPrint(), OrderedCollectionInit(), OrderedCollectionInsert(), PciSegmentLibConstructor(), PrintXY(), SmmMemLibConstructor(), SmmMemoryAllocationLibConstructor(), UefiDevicePathLibAppendDevicePath(), UefiDevicePathLibAppendDevicePathInstance(), UefiDevicePathLibAppendDevicePathNode(), and UefiDevicePathLibConvertTextToDevicePath().
VOID* EFIAPI AllocateReservedCopyPool | ( | 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 - Buffer + 1), then ASSERT().
AllocationSize | The number of bytes to allocate and zero. | |
Buffer | The buffer to copy to the allocated buffer. |
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 - Buffer + 1), then ASSERT().
AllocationSize | The number of bytes to allocate and zero. | |
Buffer | The buffer to copy to the allocated buffer. |
References EfiReservedMemoryType, InternalAllocateCopyPool(), and NULL.
VOID* EFIAPI AllocateReservedPages | ( | 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.
Pages | The number of 4 KB pages to allocate. |
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.
Pages | The number of 4 KB pages to allocate. |
References EfiReservedMemoryType, InternalAllocatePages(), and NULL.
VOID* EFIAPI AllocateReservedPool | ( | IN UINTN | AllocationSize | ) |
Allocates a buffer of type EfiReservedMemoryType.
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType 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.
AllocationSize | The number of bytes to allocate. |
Allocates the number bytes specified by AllocationSize of type EfiReservedMemoryType 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.
AllocationSize | The number of bytes to allocate. |
References EfiReservedMemoryType, InternalAllocatePool(), and NULL.
VOID* EFIAPI AllocateReservedZeroPool | ( | 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.
AllocationSize | The number of bytes to allocate and zero. |
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.
AllocationSize | The number of bytes to allocate and zero. |
References EfiReservedMemoryType, InternalAllocateZeroPool(), and NULL.
VOID* EFIAPI AllocateRuntimeCopyPool | ( | 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 - Buffer + 1), then ASSERT().
AllocationSize | The number of bytes to allocate and zero. | |
Buffer | The buffer to copy to the allocated buffer. |
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 - Buffer + 1), then ASSERT().
AllocationSize | The number of bytes to allocate and zero. | |
Buffer | The buffer to copy to the allocated buffer. |
References EfiRuntimeServicesData, and InternalAllocateCopyPool().
VOID* EFIAPI AllocateRuntimePages | ( | 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.
Pages | The number of 4 KB pages to allocate. |
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.
Pages | The number of 4 KB pages to allocate. |
References EfiRuntimeServicesData, and InternalAllocatePages().
VOID* EFIAPI AllocateRuntimePool | ( | 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.
AllocationSize | The number of bytes to allocate. |
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.
AllocationSize | The number of bytes to allocate. |
References EfiRuntimeServicesData, and InternalAllocatePool().
VOID* EFIAPI AllocateRuntimeZeroPool | ( | 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.
AllocationSize | The number of bytes to allocate and zero. |
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.
AllocationSize | The number of bytes to allocate and zero. |
References EfiRuntimeServicesData, and InternalAllocateZeroPool().
VOID* EFIAPI AllocateZeroPool | ( | 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.
AllocationSize | The number of bytes to allocate and zero. |
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.
AllocationSize | The number of bytes to allocate and zero. |
References AllocatePool(), EfiBootServicesData, EfiRuntimeServicesData, InternalAllocateZeroPool(), NULL, VOID, and ZeroMem().
Referenced by CreatePopUp(), DevPathFromTextBluetooth(), FileHandleFindFirstFile(), FileHandleGetInfo(), FileHandlePrintLine(), FileHandleReturnLine(), FileHandleWriteLine(), GetBestLanguage(), HstiAipSetInfo(), HstiLibSetTable(), InternalPeiServicesInstallFvInfoPpi(), InternalPrintGraphic(), SmmPeriodicSmiLibConstructor(), StrnCatGrowLeft(), UefiDevicePathLibConvertDevicePathToText(), and UefiDevicePathLibCreateDeviceNode().
VOID EFIAPI FreeAlignedPages | ( | IN VOID * | Buffer, | |
IN UINTN | Pages | |||
) |
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 it is not possible to free allocated pages, then this function will perform no actions.
If Buffer was not allocated with an aligned page allocation function in the Memory Allocation Library, then ASSERT(). If Pages is zero, then ASSERT().
Buffer | Pointer to the buffer of pages to free. | |
Pages | The number of 4 KB pages to free. |
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 it is not possible to free allocated pages, then this function will perform no actions.
If Buffer was not allocated with an aligned page allocation function in the Memory Allocation Library, then ASSERT(). If Pages is zero, then ASSERT().
Buffer | The pointer to the buffer of pages to free. | |
Pages | The number of 4 KB pages to free. |
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 it is not possible to free allocated pages, then this function will perform no actions.
If Buffer was not allocated with an aligned page allocation function in the Memory Allocation Library, then ASSERT(). If Pages is zero, then ASSERT().
Buffer | The pointer to the buffer of pages to free. | |
Pages | The number of 4 KB pages to free. |
References ASSERT, ASSERT_EFI_ERROR, BufferInSmram(), EFI_BOOT_SERVICES::FreePages, gBS, gSmst, and _EFI_SMM_SYSTEM_TABLE2::SmmFreePages.
VOID EFIAPI FreePages | ( | IN VOID * | Buffer, | |
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 it is not possible to free allocated pages, then this function will perform no actions.
If Buffer was not allocated with a page allocation function in the Memory Allocation Library, then ASSERT(). If Pages is zero, then ASSERT().
Buffer | Pointer to the buffer of pages to free. | |
Pages | The number of 4 KB pages to free. |
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 it is not possible to free allocated pages, then this function will perform no actions.
If Buffer was not allocated with a page allocation function in the Memory Allocation Library, then ASSERT(). If Pages is zero, then ASSERT().
Buffer | The pointer to the buffer of pages to free. | |
Pages | The number of 4 KB pages to free. |
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 it is not possible to free allocated pages, then this function will perform no actions.
If Buffer was not allocated with a page allocation function in the Memory Allocation Library, then ASSERT(). If Pages is zero, then ASSERT().
Buffer | The pointer to the buffer of pages to free. | |
Pages | The number of 4 KB pages to free. |
References ASSERT, ASSERT_EFI_ERROR, BufferInSmram(), EFI_BOOT_SERVICES::FreePages, gBS, gSmst, and _EFI_SMM_SYSTEM_TABLE2::SmmFreePages.
Referenced by ReclaimPeriodicSmiLibraryHandler().
VOID EFIAPI FreePool | ( | IN 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 it is not possible to free pool resources, then this function will perform no actions.
If Buffer was not allocated with a pool allocation function in the Memory Allocation Library, then ASSERT().
Buffer | Pointer to the buffer to free. |
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 it is not possible to free pool resources, then this function will perform no actions.
If Buffer was not allocated with a pool allocation function in the Memory Allocation Library, then ASSERT().
Buffer | The pointer to the buffer to free. |
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 it is not possible to free pool resources, then this function will perform no actions.
If Buffer was not allocated with a pool allocation function in the Memory Allocation Library, then ASSERT().
Buffer | The pointer to the buffer to free. |
References ASSERT_EFI_ERROR, BufferInSmram(), EFI_BOOT_SERVICES::FreePool, gBS, gSmst, and _EFI_SMM_SYSTEM_TABLE2::SmmFreePool.
Referenced by AddUnicodeString(), AddUnicodeString2(), AsciiInternalPrint(), AsciiPrintXY(), CreatePopUp(), DevPathFromTextBluetooth(), DevPathToTextUri(), DxeRuntimePciExpressLibDestructor(), EfiTestChildHandle(), FileDevicePath(), FileHandleEof(), FileHandleFindFirstFile(), FileHandleFindNextFile(), FileHandleGetFileName(), FileHandleGetInfo(), FileHandleGetSize(), FileHandleIsDirectory(), FileHandlePrintLine(), FileHandleReturnLine(), FileHandleSetSize(), FileHandleWriteLine(), FreeUnicodeStringTable(), GetFileBufferByFilePath(), GetSectionFromAnyFv(), GetSectionFromAnyFvByFileType(), GetVariable(), GetVariable2(), HstiAipSetInfo(), HstiLibSetTable(), InternalHstiFindAip(), InternalPrint(), InternalPrintGraphic(), InternalReallocatePool(), OrderedCollectionDelete(), OrderedCollectionUninit(), PciSegmentLibConstructor(), PciSegmentLibDestructor(), PrintXY(), ReallocateExtractHandlerTable(), SmmMemLibDestructor(), SmmMemoryAllocationLibDestructor(), SmmPeriodicSmiLibDestructor(), UefiDevicePathLibAppendDevicePathNode(), UefiDevicePathLibConvertDevicePathToText(), UefiDevicePathLibConvertTextToDeviceNode(), and UefiDevicePathLibConvertTextToDevicePath().
VOID* EFIAPI ReallocatePool | ( | IN UINTN | OldSize, | |
IN UINTN | NewSize, | |||
IN VOID * | OldBuffer | |||
) |
Reallocates a buffer of type EfiBootServicesData.
Allocates and zeros the number bytes specified by NewSize from memory of type EfiBootServicesData. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
Allocates and zeros the number bytes specified by NewSize from memory of type EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
References EfiBootServicesData, EfiRuntimeServicesData, and InternalReallocatePool().
Referenced by DevPathFromTextAcpiAdr(), ReallocateExtractHandlerTable(), StrnCatGrowLeft(), and UefiDevicePathLibCatPrint().
VOID* EFIAPI ReallocateReservedPool | ( | IN UINTN | OldSize, | |
IN UINTN | NewSize, | |||
IN VOID * | OldBuffer | |||
) |
Reallocates a buffer of type EfiReservedMemoryType.
Allocates and zeros the number bytes specified by NewSize from memory of type EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
Allocates and zeros the number bytes specified by NewSize from memory of type EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
Allocates and zeros the number bytes specified by NewSize from memory of type EfiReservedMemoryType. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
References EfiReservedMemoryType, InternalReallocatePool(), and NULL.
VOID* EFIAPI ReallocateRuntimePool | ( | IN UINTN | OldSize, | |
IN UINTN | NewSize, | |||
IN VOID * | OldBuffer | |||
) |
Reallocates a buffer of type EfiRuntimeServicesData.
Allocates and zeros the number bytes specified by NewSize from memory of type EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
Allocates and zeros the number bytes specified by NewSize from memory of type EfiRuntimeServicesData. If OldBuffer is not NULL, then the smaller of OldSize and NewSize bytes are copied from OldBuffer to the newly allocated buffer, and OldBuffer is freed. A pointer to the newly allocated buffer is returned. If NewSize 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 the allocation of the new buffer is successful and the smaller of NewSize and OldSize is greater than (MAX_ADDRESS - OldBuffer + 1), then ASSERT().
OldSize | The size, in bytes, of OldBuffer. | |
NewSize | The size, in bytes, of the buffer to reallocate. | |
OldBuffer | The buffer to copy to the allocated buffer. This is an optional parameter that may be NULL. |
References EfiRuntimeServicesData, and InternalReallocatePool().
Referenced by PciExpressRegisterForRuntimeAccess().