IntelFrameworkPkg/Include/Guid/BlockIo.h

   1 /** @file
   2   This file declares the hardware-device class GUIDs that may be used by the
   3   PEIM that produces the Virtual Block I/O PPI.
   4
   5   These GUIDs are hardware-device class GUIDs that would be imported only by the
   6   Virtual Block I/O PEIM.  This virtual PEIM imports only the actual Block I/O
   7   PPIs from the device-class ones listed here and published a single instance of
   8   the Block I/O PPI for consumption by the File System PEIM.  In the parlance of
   9   the Framework DXE software stack, this Virtual Block I/O PEIM is actually
  10   embodying the functionality of the partition driver.  Thsi Virtual Block I/O
  11   PEIM has to multiple the multiple possible instances of Block I/O and also know
  12   how to parse at least El Torito for CD-ROM, and perhaps Master Boot Record(MBR)
  13   and GUID Partition Table(GPT) in the future.
  14
  15 Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
  16 SPDX-License-Identifier: BSD-2-Clause-Patent
  17
  18   @par Revision Reference:
  19   These GUIDs are defined in Framework Recovery Specification Version 0.9
  20
  21 **/
  22
  23 #ifndef _PEI_BLOCK_IO_GUID_H_
  24 #define _PEI_BLOCK_IO_GUID_H_
  25
  26 ///
  27 /// Global ID for an IDE class recovery device.
  28 ///
  29 #define EFI_PEI_IDE_BLOCK_IO_PPI \
  30   { \
  31     0x0964e5b22, 0x6459, 0x11d2, { 0x8e, 0x39, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b }  \
  32   }
  33
  34 ///
  35 /// Global ID for a Floppy class recovery device.
  36 ///
  37 #define EFI_PEI_144_FLOPPY_BLOCK_IO_PPI \
  38   { \
  39     0xda6855bd, 0x07b7, 0x4c05, { 0x9e, 0xd8, 0xe2, 0x59, 0xfd, 0x36, 0x0e, 0x22 }  \
  40   }
  41
  42 extern EFI_GUID gEfiPeiIdeBlockIoPpiGuid;
  43 extern EFI_GUID gEfiPei144FloppyBlockIoPpiGuid;
  44
  45 #endif