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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/stand/efi/include/efigpt.h
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#ifndef _EFI_GPT_H

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#define _EFI_GPT_H

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/*++

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Copyright (c) 1998  Intel Corporation

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Module Name:

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    EfiGpt.h

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Abstract:

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    Include file for EFI partitioning scheme

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Revision History

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--*/

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#define PRIMARY_PART_HEADER_LBA         1

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typedef struct {

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    EFI_TABLE_HEADER    Header;

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    EFI_LBA             MyLBA;

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    EFI_LBA             AlternateLBA;

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    EFI_LBA             FirstUsableLBA;

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    EFI_LBA             LastUsableLBA;

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    EFI_GUID            DiskGUID;

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    EFI_LBA             PartitionEntryLBA;

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    UINT32              NumberOfPartitionEntries;

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    UINT32              SizeOfPartitionEntry;

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    UINT32              PartitionEntryArrayCRC32;

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} EFI_PARTITION_TABLE_HEADER;

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#define EFI_PTAB_HEADER_ID  "EFI PART"

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typedef struct {

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    EFI_GUID    PartitionTypeGUID;

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    EFI_GUID    UniquePartitionGUID;

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    EFI_LBA     StartingLBA;

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    EFI_LBA     EndingLBA;

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    UINT64      Attributes;

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    CHAR16      PartitionName[36];

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} EFI_PARTITION_ENTRY;

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//

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// EFI Partition Attributes

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//

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#define EFI_PART_USED_BY_EFI            0x0000000000000001

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#define EFI_PART_REQUIRED_TO_FUNCTION   0x0000000000000002

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#define EFI_PART_USED_BY_OS             0x0000000000000004

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#define EFI_PART_REQUIRED_BY_OS         0x0000000000000008

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#define EFI_PART_BACKUP_REQUIRED        0x0000000000000010

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#define EFI_PART_USER_DATA              0x0000000000000020

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#define EFI_PART_CRITICAL_USER_DATA     0x0000000000000040

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#define EFI_PART_REDUNDANT_PARTITION    0x0000000000000080

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#define EFI_PART_TYPE_UNUSED_GUID   \

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    { 0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} }

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#define EFI_PART_TYPE_EFI_SYSTEM_PART_GUID  \

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    { 0xc12a7328, 0xf81f, 0x11d2, {0xba, 0x4b, 0x00, 0xa0, 0xc9, 0x3e, 0xc9, 0x3b} }

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#define EFI_PART_TYPE_LEGACY_MBR_GUID   \

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    { 0x024dee41, 0x33e7, 0x11d3, {0x9d, 0x69, 0x00, 0x08, 0xc7, 0x81, 0xf3, 0x9f} }

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#endif

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