public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
* [PATCH v7] EmbeddedPkg/AndroidBoot: boot android kernel from storage
@ 2017-08-17 12:58 Jun Nie
  2017-08-20 11:39 ` Leif Lindholm
  0 siblings, 1 reply; 2+ messages in thread
From: Jun Nie @ 2017-08-17 12:58 UTC (permalink / raw)
  To: haojian.zhuang, leif.lindholm, ard.biesheuvel, edk2-devel,
	linaro-uefi
  Cc: shawn.guo, jason.liu, Jun Nie

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>
---
 .../Application/AndroidBoot/AndroidBootApp.c       | 140 +++++++
 .../Application/AndroidBoot/AndroidBootApp.inf     |  64 +++
 EmbeddedPkg/EmbeddedPkg.dec                        |   2 +
 EmbeddedPkg/EmbeddedPkg.dsc                        |   2 +
 EmbeddedPkg/Include/Library/AndroidBootImgLib.h    |  13 +
 EmbeddedPkg/Include/Protocol/AndroidBootImg.h      |  47 +++
 .../Library/AndroidBootImgLib/AndroidBootImgLib.c  | 463 +++++++++++++++++++++
 .../AndroidBootImgLib/AndroidBootImgLib.inf        |  48 +++
 8 files changed, 779 insertions(+)
 create mode 100644 EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
 create mode 100644 EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
 create mode 100644 EmbeddedPkg/Include/Protocol/AndroidBootImg.h
 create mode 100644 EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
 create mode 100644 EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf

diff --git a/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
new file mode 100644
index 0000000..977167d
--- /dev/null
+++ b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
@@ -0,0 +1,140 @@
+/** @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;
+}
diff --git a/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
new file mode 100644
index 0000000..f1ee0bd
--- /dev/null
+++ b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
@@ -0,0 +1,64 @@
+#/** @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
diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index 4cd528a..8ad2a84 100644
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -80,6 +80,7 @@
   gAndroidFastbootPlatformProtocolGuid =  { 0x524685a0, 0x89a0, 0x11e3, {0x9d, 0x4d, 0xbf, 0xa9, 0xf6, 0xa4, 0x03, 0x08}}
   gUsbDeviceProtocolGuid =  { 0x021bd2ca, 0x51d2, 0x11e3, {0x8e, 0x56, 0xb7, 0x54, 0x17, 0xc7,  0x0b, 0x44 }}
   gPlatformGpioProtocolGuid = { 0x52ce9845, 0x5af4, 0x43e2, {0xba, 0xfd, 0x23, 0x08, 0x12, 0x54, 0x7a, 0xc2 }}
+  gAndroidBootImgProtocolGuid = { 0x9859bb19, 0x407c, 0x4f8b, {0xbc, 0xe1, 0xf8, 0xda, 0x65, 0x65, 0xf4, 0xa5 }}
 
 [PcdsFeatureFlag.common]
   gEmbeddedTokenSpaceGuid.PcdEmbeddedMacBoot|FALSE|BOOLEAN|0x00000001
@@ -181,6 +182,7 @@
   gEmbeddedTokenSpaceGuid.PcdAndroidFastbootUsbProductId|0xbeef|UINT32|0x00000023
   gEmbeddedTokenSpaceGuid.PcdAndroidFastbootTcpPort|1234|UINT32|0x00000024
 
+  gEmbeddedTokenSpaceGuid.PcdAndroidBootDevicePath|L""|VOID*|0x00000057
 
 [PcdsFixedAtBuild.ARM]
   gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize|32|UINT8|0x00000010
diff --git a/EmbeddedPkg/EmbeddedPkg.dsc b/EmbeddedPkg/EmbeddedPkg.dsc
index 16b368e..4a34e34 100644
--- a/EmbeddedPkg/EmbeddedPkg.dsc
+++ b/EmbeddedPkg/EmbeddedPkg.dsc
@@ -52,6 +52,7 @@
   DebugLib|MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf
 
 
+  AndroidBootImgLib|EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
   BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
   BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
   PciLib|MdePkg/Library/BasePciLibCf8/BasePciLibCf8.inf
@@ -272,6 +273,7 @@
       TimerLib|MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf
   }
 
+  EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
   EmbeddedPkg/Application/AndroidFastboot/AndroidFastbootApp.inf {
     <LibraryClasses>
       # It depends on BdsLib that depends on TimerLib
diff --git a/EmbeddedPkg/Include/Library/AndroidBootImgLib.h b/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
index 06da751..331caa5 100644
--- a/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
+++ b/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
@@ -55,4 +55,17 @@ typedef struct {
  * and larger than boot header */
 #define IS_VALID_ANDROID_PAGE_SIZE(Val)   \
              (IS_POWER_OF_2(Val) && (Val > sizeof(ANDROID_BOOTIMG_HEADER)))
+
+EFI_STATUS
+AndroidBootImgGetImgSize (
+  IN  VOID    *BootImg,
+  OUT UINTN   *ImgSize
+  );
+
+EFI_STATUS
+AndroidBootImgBoot (
+  IN VOID                   *Buffer,
+  IN UINTN                   BufferSize
+  );
+
 #endif /* __ABOOTIMG_H__ */
diff --git a/EmbeddedPkg/Include/Protocol/AndroidBootImg.h b/EmbeddedPkg/Include/Protocol/AndroidBootImg.h
new file mode 100644
index 0000000..1c458d0
--- /dev/null
+++ b/EmbeddedPkg/Include/Protocol/AndroidBootImg.h
@@ -0,0 +1,47 @@
+/** @file
+
+  Copyright (c) 2017, Linaro. All rights reserved.<BR>
+
+  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.
+
+**/
+
+#ifndef __ANDROID_BOOTIMG_PROTOCOL_H__
+#define __ANDROID_BOOTIMG_PROTOCOL_H__
+
+//
+// Protocol interface structure
+//
+typedef struct _ANDROID_BOOTIMG_PROTOCOL    ANDROID_BOOTIMG_PROTOCOL;
+
+//
+// Function Prototypes
+//
+typedef
+EFI_STATUS
+(EFIAPI *ANDROID_BOOTIMG_APPEND_KERNEL_ARGS) (
+  IN CHAR16            *Args,
+  IN UINTN              Size
+  );
+
+typedef
+EFI_STATUS
+(EFIAPI *ANDROID_BOOTIMG_UPDATE_DTB) (
+  IN  EFI_PHYSICAL_ADDRESS    OrigDtbBase;
+  OUT EFI_PHYSICAL_ADDRESS   *NewDtbBase;
+  );
+
+struct _ANDROID_BOOTIMG_PROTOCOL {
+  ANDROID_BOOTIMG_APPEND_KERNEL_ARGS        AppendArgs;
+  ANDROID_BOOTIMG_UPDATE_DTB                UpdateDtb;
+};
+
+extern EFI_GUID gAndroidBootImgProtocolGuid;
+
+#endif /* __ANDROID_BOOTIMG_PROTOCOL_H__ */
diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
new file mode 100644
index 0000000..72c0757
--- /dev/null
+++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
@@ -0,0 +1,463 @@
+/** @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 <libfdt.h>
+#include <Library/AndroidBootImgLib.h>
+#include <Library/PrintLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+
+#include <Protocol/AndroidBootImg.h>
+#include <Protocol/LoadedImage.h>
+
+#include <libfdt.h>
+
+#define FDT_ADDITIONAL_ENTRIES_SIZE 0x400
+
+typedef struct {
+  MEMMAP_DEVICE_PATH                      Node1;
+  EFI_DEVICE_PATH_PROTOCOL                End;
+} MEMORY_DEVICE_PATH;
+
+STATIC ANDROID_BOOTIMG_PROTOCOL                 *mAndroidBootImg;
+
+STATIC CONST MEMORY_DEVICE_PATH mMemoryDevicePathTemplate =
+{
+  {
+    {
+      HARDWARE_DEVICE_PATH,
+      HW_MEMMAP_DP,
+      {
+        (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),
+        (UINT8)((sizeof (MEMMAP_DEVICE_PATH)) >> 8),
+      },
+    }, // Header
+    0, // StartingAddress (set at runtime)
+    0  // EndingAddress   (set at runtime)
+  }, // Node1
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
+  } // End
+};
+
+EFI_STATUS
+AndroidBootImgGetImgSize (
+  IN  VOID    *BootImg,
+  OUT UINTN   *ImgSize
+  )
+{
+  ANDROID_BOOTIMG_HEADER   *Header;
+
+  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
+
+  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
+                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  /* The page size is not specified, but it should be power of 2 at least */
+  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
+
+  /* Get real size of abootimg */
+  *ImgSize = ALIGN_VALUE (Header->KernelSize, Header->PageSize) +
+             ALIGN_VALUE (Header->RamdiskSize, Header->PageSize) +
+             ALIGN_VALUE (Header->SecondStageBootloaderSize, Header->PageSize) +
+             Header->PageSize;
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+AndroidBootImgGetKernelInfo (
+  IN  VOID    *BootImg,
+  OUT VOID   **Kernel,
+  OUT UINTN   *KernelSize
+  )
+{
+  ANDROID_BOOTIMG_HEADER   *Header;
+
+  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
+
+  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
+                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  if (Header->KernelSize == 0) {
+    return EFI_NOT_FOUND;
+  }
+
+  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
+
+  *KernelSize = Header->KernelSize;
+  *Kernel = BootImg + Header->PageSize;
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+AndroidBootImgGetRamdiskInfo (
+  IN  VOID    *BootImg,
+  OUT VOID   **Ramdisk,
+  OUT UINTN   *RamdiskSize
+  )
+{
+  ANDROID_BOOTIMG_HEADER   *Header;
+
+  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
+
+  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
+                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
+
+  *RamdiskSize = Header->RamdiskSize;
+
+  if (Header->RamdiskSize != 0) {
+    *Ramdisk = (VOID *) ((INTN)BootImg
+                 + Header->PageSize
+                 + ALIGN_VALUE (Header->KernelSize, Header->PageSize));
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+AndroidBootImgGetSecondBootLoaderInfo (
+  IN  VOID    *BootImg,
+  OUT VOID   **Second,
+  OUT UINTN   *SecondSize
+  )
+{
+  ANDROID_BOOTIMG_HEADER   *Header;
+
+  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
+
+  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
+                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
+    return EFI_INVALID_PARAMETER;
+  }
+
+  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
+
+  *SecondSize = Header->SecondStageBootloaderSize;
+
+  if (Header->SecondStageBootloaderSize != 0) {
+    *Second = (VOID *) ((UINTN) BootImg
+                 + Header->PageSize
+                 + ALIGN_VALUE (Header->KernelSize, Header->PageSize)
+                 + ALIGN_VALUE (Header->RamdiskSize, Header->PageSize));
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+AndroidBootImgGetKernelArgs (
+  IN  VOID    *BootImg,
+  OUT CHAR8   *KernelArgs
+  )
+{
+  ANDROID_BOOTIMG_HEADER   *Header;
+
+  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
+  AsciiStrnCpyS (KernelArgs, ANDROID_BOOTIMG_KERNEL_ARGS_SIZE, Header->KernelArgs,
+    ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+AndroidBootImgGetFdt (
+  IN  VOID                  *BootImg,
+  IN  VOID                 **FdtBase
+  )
+{
+  UINTN                      SecondLoaderSize;
+  EFI_STATUS                 Status;
+
+  /* Check whether FDT is located in second boot region as some vendor do so,
+   * because second loader is never used as far as I know. */
+  Status = AndroidBootImgGetSecondBootLoaderInfo (
+          BootImg,
+          FdtBase,
+          &SecondLoaderSize
+          );
+  return Status;
+}
+
+EFI_STATUS
+AndroidBootImgUpdateArgs (
+  IN  VOID                  *BootImg,
+  OUT VOID                  *KernelArgs
+  )
+{
+  CHAR8                      ImageKernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];
+  EFI_STATUS                 Status;
+
+  // Get kernel arguments from Android boot image
+  Status = AndroidBootImgGetKernelArgs (BootImg, ImageKernelArgs);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  AsciiStrToUnicodeStrS (ImageKernelArgs, KernelArgs,
+                         ANDROID_BOOTIMG_KERNEL_ARGS_SIZE >> 1);
+  // Append platform kernel arguments
+  if(mAndroidBootImg->AppendArgs) {
+    Status = mAndroidBootImg->AppendArgs (KernelArgs,
+                                    ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
+  }
+  return Status;
+}
+
+EFI_STATUS
+AndroidBootImgLocateFdt (
+  IN  VOID                  *BootImg,
+  IN  VOID                 **FdtBase
+  )
+{
+  INTN                       Err;
+  EFI_STATUS                 Status;
+
+  Status = EfiGetSystemConfigurationTable (&gFdtTableGuid, FdtBase);
+  if (!EFI_ERROR (Status)) {
+    return EFI_SUCCESS;
+  }
+
+  Status = AndroidBootImgGetFdt (BootImg, FdtBase);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+  Err = fdt_check_header (*FdtBase);
+  if (Err != 0) {
+    DEBUG ((DEBUG_ERROR, "ERROR: Device Tree header not valid (Err:%d)\n",
+           Err));
+    return EFI_INVALID_PARAMETER;
+  }
+  return EFI_SUCCESS;
+}
+
+INTN
+AndroidBootImgGetChosenNode (
+  IN  INTN   UpdatedFdtBase
+  )
+{
+  INTN                   ChosenNode;
+
+  ChosenNode = fdt_subnode_offset ((CONST VOID *)UpdatedFdtBase, 0, "chosen");
+  if (ChosenNode < 0) {
+    ChosenNode = fdt_add_subnode((VOID *)UpdatedFdtBase, 0, "chosen");
+      if (ChosenNode < 0) {
+        DEBUG ((DEBUG_ERROR, "Fail to find fdt node chosen!\n"));
+        return 0;
+    }
+  }
+  return ChosenNode;
+}
+
+EFI_STATUS
+AndroidBootImgSetProperty64 (
+  IN  INTN                   UpdatedFdtBase,
+  IN  INTN                   ChosenNode,
+  IN  CHAR8                 *PropertyName,
+  IN  UINT64                 Val
+  )
+{
+  INTN                      Err;
+  struct fdt_property      *Property;
+  int                       Len;
+
+  Property = fdt_get_property_w((VOID *)UpdatedFdtBase, ChosenNode,
+                            PropertyName, &Len);
+  if (NULL == Property && Len == -FDT_ERR_NOTFOUND) {
+    Val = cpu_to_fdt64(Val);
+    Err = fdt_appendprop ((VOID *)UpdatedFdtBase, ChosenNode,
+                          PropertyName, &Val, sizeof (UINT64));
+    if (Err) {
+      DEBUG ((DEBUG_ERROR, "fdt_appendprop() fail: %a\n", fdt_strerror (Err)));
+      return EFI_INVALID_PARAMETER;
+    }
+  } else if (Property != NULL) {
+    Err = fdt_setprop_u64((VOID *)UpdatedFdtBase, ChosenNode,
+                          PropertyName, Val);
+    if (Err) {
+      DEBUG ((DEBUG_ERROR, "fdt_setprop_u64() fail: %a\n", fdt_strerror (Err)));
+      return EFI_INVALID_PARAMETER;
+    }
+  } else {
+    DEBUG ((DEBUG_ERROR, "Failed to set fdt Property %a\n", PropertyName));
+    return EFI_INVALID_PARAMETER;
+  }
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+AndroidBootImgUpdateFdt (
+  IN  VOID                  *BootImg,
+  IN  VOID                  *FdtBase,
+  IN  VOID                  *RamdiskData,
+  IN  UINTN                  RamdiskSize
+  )
+{
+  INTN                       ChosenNode, Err, NewFdtSize;
+  EFI_STATUS                 Status;
+  EFI_PHYSICAL_ADDRESS       UpdatedFdtBase, NewFdtBase;
+
+  NewFdtSize = (UINTN)fdt_totalsize (FdtBase)
+               + FDT_ADDITIONAL_ENTRIES_SIZE;
+  Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesData,
+                  EFI_SIZE_TO_PAGES (NewFdtSize), &UpdatedFdtBase);
+  if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_WARN, "Warning: Failed to reallocate FDT, err %d.\n",
+           Status));
+    return Status;
+  }
+
+  // Load the Original FDT tree into the new region
+  Err = fdt_open_into(FdtBase, (VOID*)(INTN)UpdatedFdtBase, NewFdtSize);
+  if (Err) {
+    DEBUG ((DEBUG_ERROR, "fdt_open_into(): %a\n", fdt_strerror (Err)));
+    Status = EFI_INVALID_PARAMETER;
+    goto Fdt_Exit;
+  }
+
+  ChosenNode = AndroidBootImgGetChosenNode(UpdatedFdtBase);
+  if (!ChosenNode) {
+    goto Fdt_Exit;
+  }
+
+  Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
+                                        "linux,initrd-start",
+                                        (UINTN)RamdiskData);
+  if (EFI_ERROR (Status)) {
+    goto Fdt_Exit;
+  }
+
+  Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
+                                        "linux,initrd-end",
+                                        (UINTN)(RamdiskData + RamdiskSize));
+  if (EFI_ERROR (Status)) {
+    goto Fdt_Exit;
+  }
+
+  if (mAndroidBootImg->UpdateDtb) {
+    Status = mAndroidBootImg->UpdateDtb (UpdatedFdtBase, &NewFdtBase);
+    if (EFI_ERROR (Status)) {
+      goto Fdt_Exit;
+    }
+  }
+
+  Status = gBS->InstallConfigurationTable (
+                  &gFdtTableGuid,
+                  (VOID *)(UINTN)NewFdtBase
+                  );
+  if (!EFI_ERROR (Status)) {
+    return EFI_SUCCESS;
+  }
+
+Fdt_Exit:
+  gBS->FreePages (UpdatedFdtBase, EFI_SIZE_TO_PAGES (NewFdtSize));
+  return Status;
+}
+
+EFI_STATUS
+AndroidBootImgBoot (
+  IN VOID                            *Buffer,
+  IN UINTN                            BufferSize
+  )
+{
+  EFI_STATUS                          Status;
+  VOID                               *Kernel;
+  UINTN                               KernelSize;
+  MEMORY_DEVICE_PATH                  KernelDevicePath;
+  EFI_HANDLE                          ImageHandle;
+  VOID                               *NewKernelArg;
+  EFI_LOADED_IMAGE_PROTOCOL          *ImageInfo;
+  VOID                               *RamdiskData;
+  UINTN                               RamdiskSize;
+  IN  VOID                           *FdtBase;
+
+  Status = gBS->LocateProtocol (&gAndroidBootImgProtocolGuid, NULL,
+                                (VOID **) &mAndroidBootImg);
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = AndroidBootImgGetKernelInfo (
+            Buffer,
+            &Kernel,
+            &KernelSize
+            );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  NewKernelArg = AllocateZeroPool (ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
+  if (NewKernelArg == NULL) {
+    DEBUG ((DEBUG_ERROR, "Fail to allocate memory\n"));
+    return EFI_OUT_OF_RESOURCES;
+  }
+
+  Status = AndroidBootImgUpdateArgs (Buffer, NewKernelArg);
+  if (EFI_ERROR (Status)) {
+    FreePool (NewKernelArg);
+    return Status;
+  }
+
+  Status = AndroidBootImgGetRamdiskInfo (
+            Buffer,
+            &RamdiskData,
+            &RamdiskSize
+            );
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  Status = AndroidBootImgLocateFdt (Buffer, &FdtBase);
+  if (EFI_ERROR (Status)) {
+    FreePool (NewKernelArg);
+    return Status;
+  }
+
+  Status = AndroidBootImgUpdateFdt (Buffer, FdtBase, RamdiskData, RamdiskSize);
+  if (EFI_ERROR (Status)) {
+    FreePool (NewKernelArg);
+    return Status;
+  }
+
+  KernelDevicePath = mMemoryDevicePathTemplate;
+
+  KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel;
+  KernelDevicePath.Node1.EndingAddress   = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel
+                                           + KernelSize;
+
+  Status = gBS->LoadImage (TRUE, gImageHandle,
+                           (EFI_DEVICE_PATH *)&KernelDevicePath,
+                           (VOID*)(UINTN)Kernel, KernelSize, &ImageHandle);
+
+  // Set kernel arguments
+  Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid,
+                                (VOID **) &ImageInfo);
+  ImageInfo->LoadOptions = NewKernelArg;
+  ImageInfo->LoadOptionsSize = StrLen (NewKernelArg) * sizeof (CHAR16);
+
+  // Before calling the image, enable the Watchdog Timer for  the 5 Minute period
+  gBS->SetWatchdogTimer (5 * 60, 0x10000, 0, NULL);
+  // Start the image
+  Status = gBS->StartImage (ImageHandle, NULL, NULL);
+  // Clear the Watchdog Timer if the image returns
+  gBS->SetWatchdogTimer (0, 0x10000, 0, NULL);
+  return EFI_SUCCESS;
+}
diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
new file mode 100644
index 0000000..c92bac0
--- /dev/null
+++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
@@ -0,0 +1,48 @@
+#/** @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                      = AndroidBootImgLib
+  FILE_GUID                      = ed3b8739-6fa7-4cb1-8aeb-2496f8fcaefa
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = AndroidBootImgLib
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = ARM AARCH64
+#
+
+[Sources]
+  AndroidBootImgLib.c
+
+[LibraryClasses]
+  DebugLib
+  FdtLib
+  PrintLib
+  UefiBootServicesTableLib
+  UefiLib
+
+[Packages]
+  EmbeddedPkg/EmbeddedPkg.dec
+  MdePkg/MdePkg.dec
+
+[Protocols]
+  gAndroidBootImgProtocolGuid
+
+[Guids]
+  gFdtTableGuid
-- 
1.9.1



^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH v7] EmbeddedPkg/AndroidBoot: boot android kernel from storage
  2017-08-17 12:58 [PATCH v7] EmbeddedPkg/AndroidBoot: boot android kernel from storage Jun Nie
@ 2017-08-20 11:39 ` Leif Lindholm
  0 siblings, 0 replies; 2+ messages in thread
From: Leif Lindholm @ 2017-08-20 11:39 UTC (permalink / raw)
  To: Jun Nie
  Cc: haojian.zhuang, ard.biesheuvel, edk2-devel, linaro-uefi,
	shawn.guo, jason.liu

Thanks - I did squeeze in a few whitespace fixups I spotted before
committing, but:

Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Pushed as fa74dd2217.

/
    Leif

On Thu, Aug 17, 2017 at 08:58:59PM +0800, Jun Nie wrote:
> 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>
> ---
>  .../Application/AndroidBoot/AndroidBootApp.c       | 140 +++++++
>  .../Application/AndroidBoot/AndroidBootApp.inf     |  64 +++
>  EmbeddedPkg/EmbeddedPkg.dec                        |   2 +
>  EmbeddedPkg/EmbeddedPkg.dsc                        |   2 +
>  EmbeddedPkg/Include/Library/AndroidBootImgLib.h    |  13 +
>  EmbeddedPkg/Include/Protocol/AndroidBootImg.h      |  47 +++
>  .../Library/AndroidBootImgLib/AndroidBootImgLib.c  | 463 +++++++++++++++++++++
>  .../AndroidBootImgLib/AndroidBootImgLib.inf        |  48 +++
>  8 files changed, 779 insertions(+)
>  create mode 100644 EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
>  create mode 100644 EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
>  create mode 100644 EmbeddedPkg/Include/Protocol/AndroidBootImg.h
>  create mode 100644 EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
>  create mode 100644 EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
> 
> diff --git a/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
> new file mode 100644
> index 0000000..977167d
> --- /dev/null
> +++ b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.c
> @@ -0,0 +1,140 @@
> +/** @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;
> +}
> diff --git a/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
> new file mode 100644
> index 0000000..f1ee0bd
> --- /dev/null
> +++ b/EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
> @@ -0,0 +1,64 @@
> +#/** @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
> diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
> index 4cd528a..8ad2a84 100644
> --- a/EmbeddedPkg/EmbeddedPkg.dec
> +++ b/EmbeddedPkg/EmbeddedPkg.dec
> @@ -80,6 +80,7 @@
>    gAndroidFastbootPlatformProtocolGuid =  { 0x524685a0, 0x89a0, 0x11e3, {0x9d, 0x4d, 0xbf, 0xa9, 0xf6, 0xa4, 0x03, 0x08}}
>    gUsbDeviceProtocolGuid =  { 0x021bd2ca, 0x51d2, 0x11e3, {0x8e, 0x56, 0xb7, 0x54, 0x17, 0xc7,  0x0b, 0x44 }}
>    gPlatformGpioProtocolGuid = { 0x52ce9845, 0x5af4, 0x43e2, {0xba, 0xfd, 0x23, 0x08, 0x12, 0x54, 0x7a, 0xc2 }}
> +  gAndroidBootImgProtocolGuid = { 0x9859bb19, 0x407c, 0x4f8b, {0xbc, 0xe1, 0xf8, 0xda, 0x65, 0x65, 0xf4, 0xa5 }}
>  
>  [PcdsFeatureFlag.common]
>    gEmbeddedTokenSpaceGuid.PcdEmbeddedMacBoot|FALSE|BOOLEAN|0x00000001
> @@ -181,6 +182,7 @@
>    gEmbeddedTokenSpaceGuid.PcdAndroidFastbootUsbProductId|0xbeef|UINT32|0x00000023
>    gEmbeddedTokenSpaceGuid.PcdAndroidFastbootTcpPort|1234|UINT32|0x00000024
>  
> +  gEmbeddedTokenSpaceGuid.PcdAndroidBootDevicePath|L""|VOID*|0x00000057
>  
>  [PcdsFixedAtBuild.ARM]
>    gEmbeddedTokenSpaceGuid.PcdPrePiCpuMemorySize|32|UINT8|0x00000010
> diff --git a/EmbeddedPkg/EmbeddedPkg.dsc b/EmbeddedPkg/EmbeddedPkg.dsc
> index 16b368e..4a34e34 100644
> --- a/EmbeddedPkg/EmbeddedPkg.dsc
> +++ b/EmbeddedPkg/EmbeddedPkg.dsc
> @@ -52,6 +52,7 @@
>    DebugLib|MdePkg/Library/BaseDebugLibNull/BaseDebugLibNull.inf
>  
>  
> +  AndroidBootImgLib|EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
>    BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
>    BaseMemoryLib|MdePkg/Library/BaseMemoryLib/BaseMemoryLib.inf
>    PciLib|MdePkg/Library/BasePciLibCf8/BasePciLibCf8.inf
> @@ -272,6 +273,7 @@
>        TimerLib|MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf
>    }
>  
> +  EmbeddedPkg/Application/AndroidBoot/AndroidBootApp.inf
>    EmbeddedPkg/Application/AndroidFastboot/AndroidFastbootApp.inf {
>      <LibraryClasses>
>        # It depends on BdsLib that depends on TimerLib
> diff --git a/EmbeddedPkg/Include/Library/AndroidBootImgLib.h b/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
> index 06da751..331caa5 100644
> --- a/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
> +++ b/EmbeddedPkg/Include/Library/AndroidBootImgLib.h
> @@ -55,4 +55,17 @@ typedef struct {
>   * and larger than boot header */
>  #define IS_VALID_ANDROID_PAGE_SIZE(Val)   \
>               (IS_POWER_OF_2(Val) && (Val > sizeof(ANDROID_BOOTIMG_HEADER)))
> +
> +EFI_STATUS
> +AndroidBootImgGetImgSize (
> +  IN  VOID    *BootImg,
> +  OUT UINTN   *ImgSize
> +  );
> +
> +EFI_STATUS
> +AndroidBootImgBoot (
> +  IN VOID                   *Buffer,
> +  IN UINTN                   BufferSize
> +  );
> +
>  #endif /* __ABOOTIMG_H__ */
> diff --git a/EmbeddedPkg/Include/Protocol/AndroidBootImg.h b/EmbeddedPkg/Include/Protocol/AndroidBootImg.h
> new file mode 100644
> index 0000000..1c458d0
> --- /dev/null
> +++ b/EmbeddedPkg/Include/Protocol/AndroidBootImg.h
> @@ -0,0 +1,47 @@
> +/** @file
> +
> +  Copyright (c) 2017, Linaro. All rights reserved.<BR>
> +
> +  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.
> +
> +**/
> +
> +#ifndef __ANDROID_BOOTIMG_PROTOCOL_H__
> +#define __ANDROID_BOOTIMG_PROTOCOL_H__
> +
> +//
> +// Protocol interface structure
> +//
> +typedef struct _ANDROID_BOOTIMG_PROTOCOL    ANDROID_BOOTIMG_PROTOCOL;
> +
> +//
> +// Function Prototypes
> +//
> +typedef
> +EFI_STATUS
> +(EFIAPI *ANDROID_BOOTIMG_APPEND_KERNEL_ARGS) (
> +  IN CHAR16            *Args,
> +  IN UINTN              Size
> +  );
> +
> +typedef
> +EFI_STATUS
> +(EFIAPI *ANDROID_BOOTIMG_UPDATE_DTB) (
> +  IN  EFI_PHYSICAL_ADDRESS    OrigDtbBase;
> +  OUT EFI_PHYSICAL_ADDRESS   *NewDtbBase;
> +  );
> +
> +struct _ANDROID_BOOTIMG_PROTOCOL {
> +  ANDROID_BOOTIMG_APPEND_KERNEL_ARGS        AppendArgs;
> +  ANDROID_BOOTIMG_UPDATE_DTB                UpdateDtb;
> +};
> +
> +extern EFI_GUID gAndroidBootImgProtocolGuid;
> +
> +#endif /* __ANDROID_BOOTIMG_PROTOCOL_H__ */
> diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
> new file mode 100644
> index 0000000..72c0757
> --- /dev/null
> +++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.c
> @@ -0,0 +1,463 @@
> +/** @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 <libfdt.h>
> +#include <Library/AndroidBootImgLib.h>
> +#include <Library/PrintLib.h>
> +#include <Library/UefiBootServicesTableLib.h>
> +#include <Library/UefiLib.h>
> +
> +#include <Protocol/AndroidBootImg.h>
> +#include <Protocol/LoadedImage.h>
> +
> +#include <libfdt.h>
> +
> +#define FDT_ADDITIONAL_ENTRIES_SIZE 0x400
> +
> +typedef struct {
> +  MEMMAP_DEVICE_PATH                      Node1;
> +  EFI_DEVICE_PATH_PROTOCOL                End;
> +} MEMORY_DEVICE_PATH;
> +
> +STATIC ANDROID_BOOTIMG_PROTOCOL                 *mAndroidBootImg;
> +
> +STATIC CONST MEMORY_DEVICE_PATH mMemoryDevicePathTemplate =
> +{
> +  {
> +    {
> +      HARDWARE_DEVICE_PATH,
> +      HW_MEMMAP_DP,
> +      {
> +        (UINT8)(sizeof (MEMMAP_DEVICE_PATH)),
> +        (UINT8)((sizeof (MEMMAP_DEVICE_PATH)) >> 8),
> +      },
> +    }, // Header
> +    0, // StartingAddress (set at runtime)
> +    0  // EndingAddress   (set at runtime)
> +  }, // Node1
> +  {
> +    END_DEVICE_PATH_TYPE,
> +    END_ENTIRE_DEVICE_PATH_SUBTYPE,
> +    { sizeof (EFI_DEVICE_PATH_PROTOCOL), 0 }
> +  } // End
> +};
> +
> +EFI_STATUS
> +AndroidBootImgGetImgSize (
> +  IN  VOID    *BootImg,
> +  OUT UINTN   *ImgSize
> +  )
> +{
> +  ANDROID_BOOTIMG_HEADER   *Header;
> +
> +  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
> +
> +  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
> +                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  /* The page size is not specified, but it should be power of 2 at least */
> +  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
> +
> +  /* Get real size of abootimg */
> +  *ImgSize = ALIGN_VALUE (Header->KernelSize, Header->PageSize) +
> +             ALIGN_VALUE (Header->RamdiskSize, Header->PageSize) +
> +             ALIGN_VALUE (Header->SecondStageBootloaderSize, Header->PageSize) +
> +             Header->PageSize;
> +  return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgGetKernelInfo (
> +  IN  VOID    *BootImg,
> +  OUT VOID   **Kernel,
> +  OUT UINTN   *KernelSize
> +  )
> +{
> +  ANDROID_BOOTIMG_HEADER   *Header;
> +
> +  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
> +
> +  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
> +                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  if (Header->KernelSize == 0) {
> +    return EFI_NOT_FOUND;
> +  }
> +
> +  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
> +
> +  *KernelSize = Header->KernelSize;
> +  *Kernel = BootImg + Header->PageSize;
> +  return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgGetRamdiskInfo (
> +  IN  VOID    *BootImg,
> +  OUT VOID   **Ramdisk,
> +  OUT UINTN   *RamdiskSize
> +  )
> +{
> +  ANDROID_BOOTIMG_HEADER   *Header;
> +
> +  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
> +
> +  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
> +                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
> +
> +  *RamdiskSize = Header->RamdiskSize;
> +
> +  if (Header->RamdiskSize != 0) {
> +    *Ramdisk = (VOID *) ((INTN)BootImg
> +                 + Header->PageSize
> +                 + ALIGN_VALUE (Header->KernelSize, Header->PageSize));
> +  }
> +  return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgGetSecondBootLoaderInfo (
> +  IN  VOID    *BootImg,
> +  OUT VOID   **Second,
> +  OUT UINTN   *SecondSize
> +  )
> +{
> +  ANDROID_BOOTIMG_HEADER   *Header;
> +
> +  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
> +
> +  if (AsciiStrnCmp ((CONST CHAR8 *)Header->BootMagic, ANDROID_BOOT_MAGIC,
> +                    ANDROID_BOOT_MAGIC_LENGTH) != 0) {
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  ASSERT (IS_VALID_ANDROID_PAGE_SIZE (Header->PageSize));
> +
> +  *SecondSize = Header->SecondStageBootloaderSize;
> +
> +  if (Header->SecondStageBootloaderSize != 0) {
> +    *Second = (VOID *) ((UINTN) BootImg
> +                 + Header->PageSize
> +                 + ALIGN_VALUE (Header->KernelSize, Header->PageSize)
> +                 + ALIGN_VALUE (Header->RamdiskSize, Header->PageSize));
> +  }
> +  return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgGetKernelArgs (
> +  IN  VOID    *BootImg,
> +  OUT CHAR8   *KernelArgs
> +  )
> +{
> +  ANDROID_BOOTIMG_HEADER   *Header;
> +
> +  Header = (ANDROID_BOOTIMG_HEADER *) BootImg;
> +  AsciiStrnCpyS (KernelArgs, ANDROID_BOOTIMG_KERNEL_ARGS_SIZE, Header->KernelArgs,
> +    ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
> +
> +  return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgGetFdt (
> +  IN  VOID                  *BootImg,
> +  IN  VOID                 **FdtBase
> +  )
> +{
> +  UINTN                      SecondLoaderSize;
> +  EFI_STATUS                 Status;
> +
> +  /* Check whether FDT is located in second boot region as some vendor do so,
> +   * because second loader is never used as far as I know. */
> +  Status = AndroidBootImgGetSecondBootLoaderInfo (
> +          BootImg,
> +          FdtBase,
> +          &SecondLoaderSize
> +          );
> +  return Status;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgUpdateArgs (
> +  IN  VOID                  *BootImg,
> +  OUT VOID                  *KernelArgs
> +  )
> +{
> +  CHAR8                      ImageKernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];
> +  EFI_STATUS                 Status;
> +
> +  // Get kernel arguments from Android boot image
> +  Status = AndroidBootImgGetKernelArgs (BootImg, ImageKernelArgs);
> +  if (EFI_ERROR (Status)) {
> +    return Status;
> +  }
> +  AsciiStrToUnicodeStrS (ImageKernelArgs, KernelArgs,
> +                         ANDROID_BOOTIMG_KERNEL_ARGS_SIZE >> 1);
> +  // Append platform kernel arguments
> +  if(mAndroidBootImg->AppendArgs) {
> +    Status = mAndroidBootImg->AppendArgs (KernelArgs,
> +                                    ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
> +  }
> +  return Status;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgLocateFdt (
> +  IN  VOID                  *BootImg,
> +  IN  VOID                 **FdtBase
> +  )
> +{
> +  INTN                       Err;
> +  EFI_STATUS                 Status;
> +
> +  Status = EfiGetSystemConfigurationTable (&gFdtTableGuid, FdtBase);
> +  if (!EFI_ERROR (Status)) {
> +    return EFI_SUCCESS;
> +  }
> +
> +  Status = AndroidBootImgGetFdt (BootImg, FdtBase);
> +  if (EFI_ERROR (Status)) {
> +    return Status;
> +  }
> +  Err = fdt_check_header (*FdtBase);
> +  if (Err != 0) {
> +    DEBUG ((DEBUG_ERROR, "ERROR: Device Tree header not valid (Err:%d)\n",
> +           Err));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +  return EFI_SUCCESS;
> +}
> +
> +INTN
> +AndroidBootImgGetChosenNode (
> +  IN  INTN   UpdatedFdtBase
> +  )
> +{
> +  INTN                   ChosenNode;
> +
> +  ChosenNode = fdt_subnode_offset ((CONST VOID *)UpdatedFdtBase, 0, "chosen");
> +  if (ChosenNode < 0) {
> +    ChosenNode = fdt_add_subnode((VOID *)UpdatedFdtBase, 0, "chosen");
> +      if (ChosenNode < 0) {
> +        DEBUG ((DEBUG_ERROR, "Fail to find fdt node chosen!\n"));
> +        return 0;
> +    }
> +  }
> +  return ChosenNode;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgSetProperty64 (
> +  IN  INTN                   UpdatedFdtBase,
> +  IN  INTN                   ChosenNode,
> +  IN  CHAR8                 *PropertyName,
> +  IN  UINT64                 Val
> +  )
> +{
> +  INTN                      Err;
> +  struct fdt_property      *Property;
> +  int                       Len;
> +
> +  Property = fdt_get_property_w((VOID *)UpdatedFdtBase, ChosenNode,
> +                            PropertyName, &Len);
> +  if (NULL == Property && Len == -FDT_ERR_NOTFOUND) {
> +    Val = cpu_to_fdt64(Val);
> +    Err = fdt_appendprop ((VOID *)UpdatedFdtBase, ChosenNode,
> +                          PropertyName, &Val, sizeof (UINT64));
> +    if (Err) {
> +      DEBUG ((DEBUG_ERROR, "fdt_appendprop() fail: %a\n", fdt_strerror (Err)));
> +      return EFI_INVALID_PARAMETER;
> +    }
> +  } else if (Property != NULL) {
> +    Err = fdt_setprop_u64((VOID *)UpdatedFdtBase, ChosenNode,
> +                          PropertyName, Val);
> +    if (Err) {
> +      DEBUG ((DEBUG_ERROR, "fdt_setprop_u64() fail: %a\n", fdt_strerror (Err)));
> +      return EFI_INVALID_PARAMETER;
> +    }
> +  } else {
> +    DEBUG ((DEBUG_ERROR, "Failed to set fdt Property %a\n", PropertyName));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +  return EFI_SUCCESS;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgUpdateFdt (
> +  IN  VOID                  *BootImg,
> +  IN  VOID                  *FdtBase,
> +  IN  VOID                  *RamdiskData,
> +  IN  UINTN                  RamdiskSize
> +  )
> +{
> +  INTN                       ChosenNode, Err, NewFdtSize;
> +  EFI_STATUS                 Status;
> +  EFI_PHYSICAL_ADDRESS       UpdatedFdtBase, NewFdtBase;
> +
> +  NewFdtSize = (UINTN)fdt_totalsize (FdtBase)
> +               + FDT_ADDITIONAL_ENTRIES_SIZE;
> +  Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesData,
> +                  EFI_SIZE_TO_PAGES (NewFdtSize), &UpdatedFdtBase);
> +  if (EFI_ERROR (Status)) {
> +    DEBUG ((DEBUG_WARN, "Warning: Failed to reallocate FDT, err %d.\n",
> +           Status));
> +    return Status;
> +  }
> +
> +  // Load the Original FDT tree into the new region
> +  Err = fdt_open_into(FdtBase, (VOID*)(INTN)UpdatedFdtBase, NewFdtSize);
> +  if (Err) {
> +    DEBUG ((DEBUG_ERROR, "fdt_open_into(): %a\n", fdt_strerror (Err)));
> +    Status = EFI_INVALID_PARAMETER;
> +    goto Fdt_Exit;
> +  }
> +
> +  ChosenNode = AndroidBootImgGetChosenNode(UpdatedFdtBase);
> +  if (!ChosenNode) {
> +    goto Fdt_Exit;
> +  }
> +
> +  Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
> +                                        "linux,initrd-start",
> +                                        (UINTN)RamdiskData);
> +  if (EFI_ERROR (Status)) {
> +    goto Fdt_Exit;
> +  }
> +
> +  Status = AndroidBootImgSetProperty64 (UpdatedFdtBase, ChosenNode,
> +                                        "linux,initrd-end",
> +                                        (UINTN)(RamdiskData + RamdiskSize));
> +  if (EFI_ERROR (Status)) {
> +    goto Fdt_Exit;
> +  }
> +
> +  if (mAndroidBootImg->UpdateDtb) {
> +    Status = mAndroidBootImg->UpdateDtb (UpdatedFdtBase, &NewFdtBase);
> +    if (EFI_ERROR (Status)) {
> +      goto Fdt_Exit;
> +    }
> +  }
> +
> +  Status = gBS->InstallConfigurationTable (
> +                  &gFdtTableGuid,
> +                  (VOID *)(UINTN)NewFdtBase
> +                  );
> +  if (!EFI_ERROR (Status)) {
> +    return EFI_SUCCESS;
> +  }
> +
> +Fdt_Exit:
> +  gBS->FreePages (UpdatedFdtBase, EFI_SIZE_TO_PAGES (NewFdtSize));
> +  return Status;
> +}
> +
> +EFI_STATUS
> +AndroidBootImgBoot (
> +  IN VOID                            *Buffer,
> +  IN UINTN                            BufferSize
> +  )
> +{
> +  EFI_STATUS                          Status;
> +  VOID                               *Kernel;
> +  UINTN                               KernelSize;
> +  MEMORY_DEVICE_PATH                  KernelDevicePath;
> +  EFI_HANDLE                          ImageHandle;
> +  VOID                               *NewKernelArg;
> +  EFI_LOADED_IMAGE_PROTOCOL          *ImageInfo;
> +  VOID                               *RamdiskData;
> +  UINTN                               RamdiskSize;
> +  IN  VOID                           *FdtBase;
> +
> +  Status = gBS->LocateProtocol (&gAndroidBootImgProtocolGuid, NULL,
> +                                (VOID **) &mAndroidBootImg);
> +  if (EFI_ERROR (Status)) {
> +    return Status;
> +  }
> +
> +  Status = AndroidBootImgGetKernelInfo (
> +            Buffer,
> +            &Kernel,
> +            &KernelSize
> +            );
> +  if (EFI_ERROR (Status)) {
> +    return Status;
> +  }
> +
> +  NewKernelArg = AllocateZeroPool (ANDROID_BOOTIMG_KERNEL_ARGS_SIZE);
> +  if (NewKernelArg == NULL) {
> +    DEBUG ((DEBUG_ERROR, "Fail to allocate memory\n"));
> +    return EFI_OUT_OF_RESOURCES;
> +  }
> +
> +  Status = AndroidBootImgUpdateArgs (Buffer, NewKernelArg);
> +  if (EFI_ERROR (Status)) {
> +    FreePool (NewKernelArg);
> +    return Status;
> +  }
> +
> +  Status = AndroidBootImgGetRamdiskInfo (
> +            Buffer,
> +            &RamdiskData,
> +            &RamdiskSize
> +            );
> +  if (EFI_ERROR (Status)) {
> +    return Status;
> +  }
> +
> +  Status = AndroidBootImgLocateFdt (Buffer, &FdtBase);
> +  if (EFI_ERROR (Status)) {
> +    FreePool (NewKernelArg);
> +    return Status;
> +  }
> +
> +  Status = AndroidBootImgUpdateFdt (Buffer, FdtBase, RamdiskData, RamdiskSize);
> +  if (EFI_ERROR (Status)) {
> +    FreePool (NewKernelArg);
> +    return Status;
> +  }
> +
> +  KernelDevicePath = mMemoryDevicePathTemplate;
> +
> +  KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel;
> +  KernelDevicePath.Node1.EndingAddress   = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel
> +                                           + KernelSize;
> +
> +  Status = gBS->LoadImage (TRUE, gImageHandle,
> +                           (EFI_DEVICE_PATH *)&KernelDevicePath,
> +                           (VOID*)(UINTN)Kernel, KernelSize, &ImageHandle);
> +
> +  // Set kernel arguments
> +  Status = gBS->HandleProtocol (ImageHandle, &gEfiLoadedImageProtocolGuid,
> +                                (VOID **) &ImageInfo);
> +  ImageInfo->LoadOptions = NewKernelArg;
> +  ImageInfo->LoadOptionsSize = StrLen (NewKernelArg) * sizeof (CHAR16);
> +
> +  // Before calling the image, enable the Watchdog Timer for  the 5 Minute period
> +  gBS->SetWatchdogTimer (5 * 60, 0x10000, 0, NULL);
> +  // Start the image
> +  Status = gBS->StartImage (ImageHandle, NULL, NULL);
> +  // Clear the Watchdog Timer if the image returns
> +  gBS->SetWatchdogTimer (0, 0x10000, 0, NULL);
> +  return EFI_SUCCESS;
> +}
> diff --git a/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
> new file mode 100644
> index 0000000..c92bac0
> --- /dev/null
> +++ b/EmbeddedPkg/Library/AndroidBootImgLib/AndroidBootImgLib.inf
> @@ -0,0 +1,48 @@
> +#/** @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                      = AndroidBootImgLib
> +  FILE_GUID                      = ed3b8739-6fa7-4cb1-8aeb-2496f8fcaefa
> +  MODULE_TYPE                    = BASE
> +  VERSION_STRING                 = 1.0
> +  LIBRARY_CLASS                  = AndroidBootImgLib
> +
> +#
> +# The following information is for reference only and not required by the build tools.
> +#
> +#  VALID_ARCHITECTURES           = ARM AARCH64
> +#
> +
> +[Sources]
> +  AndroidBootImgLib.c
> +
> +[LibraryClasses]
> +  DebugLib
> +  FdtLib
> +  PrintLib
> +  UefiBootServicesTableLib
> +  UefiLib
> +
> +[Packages]
> +  EmbeddedPkg/EmbeddedPkg.dec
> +  MdePkg/MdePkg.dec
> +
> +[Protocols]
> +  gAndroidBootImgProtocolGuid
> +
> +[Guids]
> +  gFdtTableGuid
> -- 
> 1.9.1
> 


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2017-08-20 11:37 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-08-17 12:58 [PATCH v7] EmbeddedPkg/AndroidBoot: boot android kernel from storage Jun Nie
2017-08-20 11:39 ` Leif Lindholm

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox