diff options
Diffstat (limited to 'EdkModulePkg/Universal/Disk/Partition/Dxe/Mbr.h')
| -rw-r--r-- | EdkModulePkg/Universal/Disk/Partition/Dxe/Mbr.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/EdkModulePkg/Universal/Disk/Partition/Dxe/Mbr.h b/EdkModulePkg/Universal/Disk/Partition/Dxe/Mbr.h new file mode 100644 index 0000000000..c0022c88ad --- /dev/null +++ b/EdkModulePkg/Universal/Disk/Partition/Dxe/Mbr.h @@ -0,0 +1,68 @@ +/*++
+
+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
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