Initial import.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524

EdkModulePkg/Universal/Disk/Partition/Dxe/Mbr.h

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+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+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.             
+
+Module Name:
+
+  Mbr.h
+  
+Abstract:
+
+  Data Structures required for detecting MBR Partitions
+  
+Revision History
+
+--*/
+
+#ifndef _MBR_H_
+#define _MBR_H_
+
+#pragma pack(1)
+
+#define MBR_SIGNATURE               0xaa55
+#define MIN_MBR_DEVICE_SIZE         0x80000
+#define MBR_ERRATA_PAD              0x40000 // 128 MB
+#define EXTENDED_DOS_PARTITION      0x05
+#define EXTENDED_WINDOWS_PARTITION  0x0F
+#define MAX_MBR_PARTITIONS          4
+
+#define EFI_PARTITION               0xef
+#define MBR_SIZE                    512
+
+//
+// MBR Partition Entry
+//
+typedef struct {
+  UINT8 BootIndicator;
+  UINT8 StartHead;
+  UINT8 StartSector;
+  UINT8 StartTrack;
+  UINT8 OSIndicator;
+  UINT8 EndHead;
+  UINT8 EndSector;
+  UINT8 EndTrack;
+  UINT8 StartingLBA[4];
+  UINT8 SizeInLBA[4];
+} MBR_PARTITION_RECORD;
+
+//
+// MBR Partition table
+//
+typedef struct {
+  UINT8                 BootStrapCode[440];
+  UINT8                 UniqueMbrSignature[4];
+  UINT8                 Unknown[2];
+  MBR_PARTITION_RECORD  Partition[MAX_MBR_PARTITIONS];
+  UINT16                Signature;
+} MASTER_BOOT_RECORD;
+
+#pragma pack()
+
+#endif