MdePkg/Include/Protocol/PartitionInfo.h

   1 /** @file
   2   This file defines the EFI Partition Information Protocol.
   3
   4   Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
   5   This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13   @par Revision Reference:
  14   This Protocol is introduced in UEFI Specification 2.7
  15
  16 **/
  17
  18 #ifndef __PARTITION_INFO_PROTOCOL_H__
  19 #define __PARTITION_INFO_PROTOCOL_H__
  20
  21 #include <IndustryStandard/Mbr.h>
  22 #include <Uefi/UefiGpt.h>
  23
  24 //
  25 // EFI Partition Information Protocol GUID value
  26 //
  27 #define EFI_PARTITION_INFO_PROTOCOL_GUID \
  28   { 0x8cf2f62c, 0xbc9b, 0x4821, { 0x80, 0x8d, 0xec, 0x9e, 0xc4, 0x21, 0xa1, 0xa0 }};
  29
  30
  31 #define EFI_PARTITION_INFO_PROTOCOL_REVISION     0x0001000
  32 #define PARTITION_TYPE_OTHER                     0x00
  33 #define PARTITION_TYPE_MBR                       0x01
  34 #define PARTITION_TYPE_GPT                       0x02
  35
  36 #pragma pack(1)
  37
  38 ///
  39 /// Partition Information Protocol structure.
  40 ///
  41 typedef struct {
  42   //
  43   // Set to EFI_PARTITION_INFO_PROTOCOL_REVISION.
  44   //
  45   UINT32                     Revision;
  46   //
  47   // Partition info type (PARTITION_TYPE_MBR, PARTITION_TYPE_GPT, or PARTITION_TYPE_OTHER).
  48   //
  49   UINT32                     Type;
  50   //
  51   // If 1, partition describes an EFI System Partition.
  52   //
  53   UINT8                      System;
  54   UINT8                      Reserved[7];
  55   union {
  56     ///
  57     /// MBR data
  58     ///
  59     MBR_PARTITION_RECORD     Mbr;
  60     ///
  61     /// GPT data
  62     ///
  63     EFI_PARTITION_ENTRY      Gpt;
  64   } Info;
  65 } EFI_PARTITION_INFO_PROTOCOL;
  66
  67 #pragma pack()
  68
  69 ///
  70 /// Partition Information Protocol GUID variable.
  71 ///
  72 extern EFI_GUID gEfiPartitionInfoProtocolGuid;
  73
  74 #endif