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Diffstat (limited to 'Core/CORE_DXE/Partition/Mbr.h')
| -rw-r--r-- | Core/CORE_DXE/Partition/Mbr.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/Core/CORE_DXE/Partition/Mbr.h b/Core/CORE_DXE/Partition/Mbr.h new file mode 100644 index 0000000..2aa5123 --- /dev/null +++ b/Core/CORE_DXE/Partition/Mbr.h @@ -0,0 +1,171 @@ +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2009, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** + +//********************************************************************** +// $Header: /Alaska/SOURCE/Core/CORE_DXE/Partition/Mbr.h 7 7/09/09 5:01p Oleksiyy $ +// +// $Revision: 7 $ +// +// $Date: 7/09/09 5:01p $ +//********************************************************************** +// Revision History +// ---------------- +// $Log: /Alaska/SOURCE/Core/CORE_DXE/Partition/Mbr.h $ +// +// 7 7/09/09 5:01p Oleksiyy +// Files clean-up +// +// 6 1/08/08 3:10p Robert +// +// 5 1/08/08 3:08p Robert +// +// 4 1/07/08 4:21p Robert +// Updated for coding standard +// +// 3 4/25/07 11:53a Robert +// Updated for CHM and Coding Standard Compliance +// +// 2 4/24/05 12:45a Felixp +// Definitions of SIGNATURE_TYPE_xxx macroses removed since they are +// already defined in DevicePath.h +// +//********************************************************************** +//<AMI_FHDR_START> +// +// Name: <Mbr.h> +// +// Description: EFI Mbr Partition Generic Driver Header. This header +// contains Data structures and Definitions needed to recognize +// partitions in an MBR +// +//<AMI_FHDR_END> +//********************************************************************** +#ifndef _MBR_H +#define _MBR_H + +#define MBR_SIGNATURE 0xaa55 +#define NUM_MBR_PARTITIONS 4 + +// Type definitions for the Hard drive device path +#define MBR_TYPE_MASTER_BOOT_RECORD 0x01 +#define MBR_TYPE_EFI_PARTITION_TABLE_HEADER 0x02 + +// Needed Partition Type definitions for MBR +#define NO_PARTITION 0x0 +#define EXTENDED_PARTITION 0x05 +#define WIN95_EXTENDED_PARTITION 0x0f + + +//<AMI_GHDR_START> +//------------------------------------------------------------------ +// Name: Data_Structures +// +// Description: +// Data Structures needed for MBR +// +// MASTER_BOOT_RECORD - Data Structure definition of the +// MBR located in the first block on an MBR drive +// +// MBR_PARTITION - Data Structure definition for each +// partition in the MBR +// +//------------------------------------------------------------------ +//<AMI_GHDR_END> + +#pragma pack(1) + +//<AMI_STHDR_START> +//============================================================================ +// Structure: MBR_PARTITION +// +// Description: Data Structure that defines a partition within the MBR +// +// Fields: +// BootIndicator - UINT8 - indicates whether this partition is bootable +// StartHead - UINT8 - unused in EFI +// StartSector - UINT8 - unused in EFI +// StartTrack - UINT8 - unused in EFI +// OSType - UINT8 - defines type of the partition +// EndHead - UINT8 - unused in EFI +// EndSector - UINT8 - unused in EFI +// EndTrack - UINT8 - unused in EFI +// StartingLba - UINT32 - LBA where the partiton starts on the hard drive +// SizeInLba - UINT32 - LBA where the partiton ends on the hard drive +// +// Referral: +// None +//============================================================================ +//<AMI_STHDR_END> +typedef struct _MBR_PARTITION +{ + UINT8 BootIndicator; + UINT8 StartHead; + UINT8 StartSector; + UINT8 StartTrack; + UINT8 OSType; + UINT8 EndHead; + UINT8 EndSector; + UINT8 EndTrack; + UINT32 StartingLba; + UINT32 SizeInLba; +} MBR_PARTITION; + + +// MBR Partition table +//============================================================================ +// Structure: MASTER_BOOT_RECORD +// +// Description: Data Structure that mimicks the structure of a Master Boot +// Record on a hard drive +// +// Fields: +// BootCode[440] - UINT8 - executable code in the first 440 bytes of a +// hard drive +// UniqueMbrSig - UINT32 - Uniques signature associated with the hard +// drive +// Unknown - UINT16 - an unknown portion of the data structure +// PartRec[4] - MBR_PARTITION - an array of partition entries that +// define the partitions that exist on the hard drive +// Sig - UINT16 - 0xaa55 - value that indicates this is an MBR +// +// Referral: +// MBR_PARTITION +//============================================================================ +//<AMI_STHDR_END> +typedef struct _MASTER_BOOT_RECORD +{ + UINT8 BootCode[440]; + UINT32 UniqueMbrSig; + UINT16 Unknown; + MBR_PARTITION PartRec[4]; + UINT16 Sig; +} MASTER_BOOT_RECORD; + + +#pragma pack() +#endif + +//********************************************************************** +//********************************************************************** +//** ** +//** (C)Copyright 1985-2009, American Megatrends, Inc. ** +//** ** +//** All Rights Reserved. ** +//** ** +//** 5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093 ** +//** ** +//** Phone: (770)-246-8600 ** +//** ** +//********************************************************************** +//********************************************************************** |