C++ (Cpp) ParseAndroidBootImgの例

コード例 #1

ファイル: BootAndroidBootImg.c プロジェクト: FishYu1222/edk2

EFI_STATUS
BootAndroidBootImg (
  IN UINTN    BufferSize,
  IN VOID    *Buffer
  )
{
  EFI_STATUS                          Status;
  CHAR8                               KernelArgs[BOOTIMG_KERNEL_ARGS_SIZE];
  VOID                               *Kernel;
  UINTN                               KernelSize;
  VOID                               *Ramdisk;
  UINTN                               RamdiskSize;
  MEMORY_DEVICE_PATH                  KernelDevicePath;
  MEMORY_DEVICE_PATH*                 RamdiskDevicePath;

  Status = ParseAndroidBootImg (
            Buffer,
            &Kernel,
            &KernelSize,
            &Ramdisk,
            &RamdiskSize,
            KernelArgs
            );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  KernelDevicePath = MemoryDevicePathTemplate;

  // Have to cast to UINTN before casting to EFI_PHYSICAL_ADDRESS in order to
  // appease GCC.
  KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel;
  KernelDevicePath.Node1.EndingAddress   = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel + KernelSize;

  RamdiskDevicePath = NULL;
  if (RamdiskSize != 0) {
    RamdiskDevicePath = (MEMORY_DEVICE_PATH*)DuplicateDevicePath ((EFI_DEVICE_PATH_PROTOCOL*) &MemoryDevicePathTemplate);

    RamdiskDevicePath->Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Ramdisk;
    RamdiskDevicePath->Node1.EndingAddress   = ((EFI_PHYSICAL_ADDRESS)(UINTN) Ramdisk) + RamdiskSize;
  }

  Status = BdsBootLinuxFdt (
              (EFI_DEVICE_PATH_PROTOCOL *) &KernelDevicePath,
              (EFI_DEVICE_PATH_PROTOCOL *) RamdiskDevicePath,
              KernelArgs
              );
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "Couldn't Boot Linux: %d\n", Status));
    return EFI_DEVICE_ERROR;
  }

  if (RamdiskDevicePath) {
    FreePool (RamdiskDevicePath);
  }

  // If we got here we do a confused face because BootLinuxFdt returned,
  // reporting success.
  DEBUG ((EFI_D_ERROR, "WARNING: BdsBootLinuxFdt returned EFI_SUCCESS.\n"));
  return EFI_SUCCESS;
}

コード例 #2

ファイル: BootAndroidBootImg.c プロジェクト: lersek/edk2

EFI_STATUS
BootAndroidBootImg (
  IN UINTN    BufferSize,
  IN VOID    *Buffer
  )
{
  EFI_STATUS                          Status;
  CHAR8                               KernelArgs[ANDROID_BOOTIMG_KERNEL_ARGS_SIZE];
  VOID                               *Kernel;
  UINTN                               KernelSize;
  VOID                               *Ramdisk;
  UINTN                               RamdiskSize;
  MEMORY_DEVICE_PATH                  KernelDevicePath;
  CHAR16                              *LoadOptions, *NewLoadOptions;

  Status = ParseAndroidBootImg (
            Buffer,
            &Kernel,
            &KernelSize,
            &Ramdisk,
            &RamdiskSize,
            KernelArgs
            );
  if (EFI_ERROR (Status)) {
    return Status;
  }

  KernelDevicePath = MemoryDevicePathTemplate;

  // Have to cast to UINTN before casting to EFI_PHYSICAL_ADDRESS in order to
  // appease GCC.
  KernelDevicePath.Node1.StartingAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel;
  KernelDevicePath.Node1.EndingAddress   = (EFI_PHYSICAL_ADDRESS)(UINTN) Kernel + KernelSize;

  // Initialize Linux command line
  LoadOptions = CatSPrint (NULL, L"%a", KernelArgs);
  if (LoadOptions == NULL) {
    return EFI_OUT_OF_RESOURCES;
  }

  if (RamdiskSize != 0) {
    NewLoadOptions = CatSPrint (LoadOptions, L" initrd=0x%x,0x%x",
                       (UINTN)Ramdisk, RamdiskSize);
    FreePool (LoadOptions);
    if (NewLoadOptions == NULL) {
      return EFI_OUT_OF_RESOURCES;
    }
    LoadOptions = NewLoadOptions;
  }

  Status = StartEfiApplication (gImageHandle,
             (EFI_DEVICE_PATH_PROTOCOL *) &KernelDevicePath,
             StrSize (LoadOptions),
             LoadOptions);
  if (EFI_ERROR (Status)) {
    DEBUG ((EFI_D_ERROR, "Couldn't Boot Linux: %d\n", Status));
    Status = EFI_DEVICE_ERROR;
    goto FreeLoadOptions;
  }

  // If we got here we do a confused face because BootLinuxFdt returned,
  // reporting success.
  DEBUG ((EFI_D_ERROR, "WARNING: BdsBootLinuxFdt returned EFI_SUCCESS.\n"));
  return EFI_SUCCESS;

FreeLoadOptions:
  FreePool (LoadOptions);
  return Status;
}