mirror of https://github.com/acidanthera/audk.git
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
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/** @file
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*
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* Copyright (c) 2011, ARM Limited. All rights reserved.
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*
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* This program and the accompanying materials
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* are licensed and made available under the terms and conditions of the BSD License
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* which accompanies this distribution. The full text of the license may be found at
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* http://opensource.org/licenses/bsd-license.php
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*
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* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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*
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**/
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#include "BdsInternal.h"
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EFI_STATUS BdsLoadFileFromMemMap (
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IN EFI_HANDLE Handle,
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IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
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OUT BDS_FILE *File
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) {
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EFI_DEVICE_PATH_PROTOCOL *LastDevicePath;
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if ((File == NULL) || (DevicePath == NULL) || (IsDevicePathEnd (DevicePath))) {
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return EFI_INVALID_PARAMETER;
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}
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// Check if the last node of the device Path is a Memory Map Device Node
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LastDevicePath = DevicePath;
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DevicePath = NextDevicePathNode(DevicePath);
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while (!IsDevicePathEnd (DevicePath)) {
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LastDevicePath = DevicePath;
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DevicePath = NextDevicePathNode(DevicePath);
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}
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if ((LastDevicePath->Type != HARDWARE_DEVICE_PATH) || (LastDevicePath->SubType != HW_MEMMAP_DP)) {
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return EFI_UNSUPPORTED;
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}
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File->Type = BDS_FILETYPE_MEM;
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File->File.Mem.MemoryType = ((MEMMAP_DEVICE_PATH*)LastDevicePath)->MemoryType;
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File->File.Mem.StartingAddress = ((MEMMAP_DEVICE_PATH*)LastDevicePath)->StartingAddress;
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File->File.Mem.EndingAddress = ((MEMMAP_DEVICE_PATH*)LastDevicePath)->EndingAddress;
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return EFI_SUCCESS;
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}
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EFI_STATUS BdsCopyRawFileToRuntimeMemoryMemMap(
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IN BDS_MEM_FILE *MemFile,
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OUT VOID **FileImage,
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OUT UINTN *FileSize
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) {
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UINTN Size;
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VOID* Image;
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Size = MemFile->EndingAddress - MemFile->StartingAddress;
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if ((Size == 0) || (FileImage == NULL)) {
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return EFI_INVALID_PARAMETER;
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}
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if (FileSize != NULL) {
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*FileSize = Size;
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}
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Image = AllocateRuntimePool(Size);
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if (Image == NULL) {
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return EFI_OUT_OF_RESOURCES;
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}
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*FileImage = CopyMem(Image,(CONST VOID*)(UINTN)MemFile->StartingAddress,Size);
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return EFI_SUCCESS;
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}
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