include/efi_load_initrd.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (c) 2020, Linaro Limited
   4  */
   5
   6 #if !defined _EFI_LOAD_INITRD_H_
   7 #define _EFI_LOAD_INITRD_H_
   8
   9 #include <efi.h>
  10 #include <efi_api.h>
  11
  12 /*
  13  * Vendor GUID used by Linux to identify the handle with the
  14  * EFI_LOAD_FILE2_PROTOCOL and load an initial ramdisk.
  15  */
  16 #define EFI_INITRD_MEDIA_GUID \
  17         EFI_GUID(0x5568e427, 0x68fc, 0x4f3d, \
  18                  0xac, 0x74, 0xca, 0x55, 0x52, 0x31, 0xcc, 0x68)
  19 extern const efi_guid_t efi_lf2_initrd_guid;
  20
  21 /**
  22  * struct efi_lo_dp_prefix - separator device path used in load options
  23  *
  24  * We use vendor media device nodes in UEFI load options to separate
  25  * the binary, initrd, and fdt device-paths. This structure contains
  26  * the vendor media device node and an end node.
  27  *
  28  * @vendor:     vendor media device node
  29  * @end:        end node
  30  */
  31 struct efi_lo_dp_prefix {
  32         struct efi_device_path_vendor vendor;
  33         struct efi_device_path end;
  34 } __packed;
  35
  36 #endif