fa74dd2217
Add an android kernel loader that could load kernel from storage device. This android boot image BDS add addtitional cmdline/dtb/ramfs support besides kernel that is introduced by Android boot header. This patch is derived from Haojian's code as below link. https://patches.linaro.org/patch/94683/ Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jun Nie <jun.nie@linaro.org> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/** @file
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Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
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Copyright (c) 2017, Linaro.
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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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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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#ifndef __ABOOTIMG_H__
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#define __ABOOTIMG_H__
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#include <Library/BaseLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Uefi/UefiBaseType.h>
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#include <Uefi/UefiSpec.h>
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#define ANDROID_BOOTIMG_KERNEL_ARGS_SIZE 512
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#define ANDROID_BOOT_MAGIC "ANDROID!"
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#define ANDROID_BOOT_MAGIC_LENGTH (sizeof (ANDROID_BOOT_MAGIC) - 1)
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// No documentation for this really - sizes of fields has been determined
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// empirically.
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#pragma pack(1)
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/* https://android.googlesource.com/platform/system/core/+/master/mkbootimg/bootimg.h */
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typedef struct {
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UINT8 BootMagic[ANDROID_BOOT_MAGIC_LENGTH];
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UINT32 KernelSize;
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UINT32 KernelAddress;
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UINT32 RamdiskSize;
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UINT32 RamdiskAddress;
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UINT32 SecondStageBootloaderSize;
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UINT32 SecondStageBootloaderAddress;
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UINT32 KernelTaggsAddress;
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UINT32 PageSize;
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UINT32 Reserved[2];
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CHAR8 ProductName[16];
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CHAR8 KernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];
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UINT32 Id[32];
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} ANDROID_BOOTIMG_HEADER;
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#pragma pack ()
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/* Check Val (unsigned) is a power of 2 (has only one bit set) */
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#define IS_POWER_OF_2(Val) ((Val) != 0 && (((Val) & ((Val) - 1)) == 0))
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/* Android boot image page size is not specified, but it should be power of 2
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* and larger than boot header */
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#define IS_VALID_ANDROID_PAGE_SIZE(Val) \
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(IS_POWER_OF_2(Val) && (Val > sizeof(ANDROID_BOOTIMG_HEADER)))
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EFI_STATUS
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AndroidBootImgGetImgSize (
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IN VOID *BootImg,
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OUT UINTN *ImgSize
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);
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EFI_STATUS
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AndroidBootImgBoot (
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IN VOID *Buffer,
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IN UINTN BufferSize
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);
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#endif /* __ABOOTIMG_H__ */
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