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/* $FreeBSD: head/sys/boot/efi/include/efipart.h 163898 2006-11-02 02:42:48Z marcel $ */
#ifndef _EFI_PART_H
#define _EFI_PART_H
/*++
Copyright (c) 1999 - 2002 Intel Corporation. All rights reserved
This software and associated documentation (if any) is furnished
under a license and may only be used or copied in accordance
with the terms of the license. Except as permitted by such
license, no part of this software or documentation may be
reproduced, stored in a retrieval system, or transmitted in any
form or by any means without the express written consent of
Intel Corporation.
Module Name:
efipart.h
Abstract:
Info about disk partitions and Master Boot Records
Revision History
--*/
//
//
//
#define EFI_PARTITION 0xef
#define MBR_SIZE 512
#pragma pack(1)
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;
#define EXTRACT_UINT32(D) (UINT32)(D[0] | (D[1] << 8) | (D[2] << 16) | (D[3] << 24))
#define MBR_SIGNATURE 0xaa55
#define MIN_MBR_DEVICE_SIZE 0x80000
#define MBR_ERRATA_PAD 0x40000 // 128 MB
#define MAX_MBR_PARTITIONS 4
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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