EmbeddedPkg/AndroidBoot: boot android kernel from storage

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>
This commit is contained in:
Jun Nie
2017-08-17 20:58:59 +08:00
committed by Leif Lindholm
parent ce13d2d8c8
commit fa74dd2217
8 changed files with 779 additions and 0 deletions

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/** @file
Copyright (c) 2013-2014, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2017, Linaro. 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.
**/
#include <Library/AndroidBootImgLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/BdsLib.h>
#include <Library/DebugLib.h>
#include <Library/DevicePathLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Protocol/BlockIo.h>
#include <Protocol/DevicePathFromText.h>
/* Validate the node is media hard drive type */
EFI_STATUS
ValidateAndroidMediaDevicePath (
IN EFI_DEVICE_PATH *DevicePath
)
{
EFI_DEVICE_PATH_PROTOCOL *Node, *NextNode;
NextNode = DevicePath;
while (NextNode != NULL) {
Node = NextNode;
if (IS_DEVICE_PATH_NODE (Node, MEDIA_DEVICE_PATH, MEDIA_HARDDRIVE_DP)) {
return EFI_SUCCESS;
}
NextNode = NextDevicePathNode (Node);
}
return EFI_INVALID_PARAMETER;
}
EFI_STATUS
EFIAPI
AndroidBootAppEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
CHAR16 *BootPathStr;
EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *EfiDevicePathFromTextProtocol;
EFI_DEVICE_PATH *DevicePath;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
UINT32 MediaId, BlockSize;
VOID *Buffer;
EFI_HANDLE Handle;
UINTN BootImgSize;
BootPathStr = (CHAR16 *)PcdGetPtr (PcdAndroidBootDevicePath);
ASSERT (BootPathStr != NULL);
Status = gBS->LocateProtocol (&gEfiDevicePathFromTextProtocolGuid, NULL,
(VOID **)&EfiDevicePathFromTextProtocol);
ASSERT_EFI_ERROR(Status);
DevicePath = (EFI_DEVICE_PATH *)EfiDevicePathFromTextProtocol->ConvertTextToDevicePath (BootPathStr);
ASSERT (DevicePath != NULL);
Status = ValidateAndroidMediaDevicePath (DevicePath);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->LocateDevicePath (&gEfiDevicePathProtocolGuid,
&DevicePath, &Handle);
if (EFI_ERROR (Status)) {
return Status;
}
Status = gBS->OpenProtocol (
Handle,
&gEfiBlockIoProtocolGuid,
(VOID **) &BlockIo,
gImageHandle,
NULL,
EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed to get BlockIo: %r\n", Status));
return Status;
}
MediaId = BlockIo->Media->MediaId;
BlockSize = BlockIo->Media->BlockSize;
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (sizeof(ANDROID_BOOTIMG_HEADER)));
if (Buffer == NULL) {
return EFI_BUFFER_TOO_SMALL;
}
/* Load header of boot.img */
Status = BlockIo->ReadBlocks (
BlockIo,
MediaId,
0,
BlockSize,
Buffer
);
Status = AndroidBootImgGetImgSize (Buffer, &BootImgSize);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed to get AndroidBootImg Size: %r\n", Status));
return Status;
}
BootImgSize = ALIGN_VALUE (BootImgSize, BlockSize);
FreePages (Buffer, EFI_SIZE_TO_PAGES (sizeof(ANDROID_BOOTIMG_HEADER)));
/* Both PartitionStart and PartitionSize are counted as block size. */
Buffer = AllocatePages (EFI_SIZE_TO_PAGES (BootImgSize));
if (Buffer == NULL) {
return EFI_BUFFER_TOO_SMALL;
}
/* Load header of boot.img */
Status = BlockIo->ReadBlocks (
BlockIo,
MediaId,
0,
BootImgSize,
Buffer
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed to read blocks: %r\n", Status));
goto EXIT;
}
Status = AndroidBootImgBoot (Buffer, BootImgSize);
EXIT:
return Status;
}

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#/** @file
#
# Copyright (c) 2013-2015, ARM Ltd. All rights reserved.<BR>
# Copyright (c) 2017, Linaro. 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.
#
#
#**/
[Defines]
INF_VERSION = 0x00010019
BASE_NAME = AndroidBootApp
FILE_GUID = 3a738b36-b9c5-4763-abbd-6cbd4b25f9ff
MODULE_TYPE = UEFI_APPLICATION
VERSION_STRING = 1.0
ENTRY_POINT = AndroidBootAppEntryPoint
[Sources.common]
AndroidBootApp.c
[LibraryClasses]
AndroidBootImgLib
BaseLib
BaseMemoryLib
BdsLib
DebugLib
DevicePathLib
DxeServicesTableLib
FdtLib
MemoryAllocationLib
PcdLib
PrintLib
UefiApplicationEntryPoint
UefiBootServicesTableLib
UefiLib
UefiRuntimeServicesTableLib
[Protocols]
gAndroidFastbootPlatformProtocolGuid
gEfiBlockIoProtocolGuid
gEfiDevicePathFromTextProtocolGuid
gEfiSimpleTextOutProtocolGuid
gEfiSimpleTextInProtocolGuid
[Packages]
EmbeddedPkg/EmbeddedPkg.dec
MdeModulePkg/MdeModulePkg.dec
MdePkg/MdePkg.dec
[Packages.ARM, Packages.AARCH64]
ArmPkg/ArmPkg.dec
ArmPlatformPkg/ArmPlatformPkg.dec
[Guids]
gFdtTableGuid
[Pcd]
gEmbeddedTokenSpaceGuid.PcdAndroidBootDevicePath