[mirror_ubuntu-zesty-kernel.git] / zfs / include / sys / efi_partition.h

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef	_SYS_EFI_PARTITION_H
#define	_SYS_EFI_PARTITION_H

#include <sys/uuid.h>

#ifdef	__cplusplus
extern "C" {
#endif

/*
 * GUID Partition Table Header
 */

#define	EFI_MIN_LABEL_SIZE 92
#define	EFI_LABEL_SIZE	512
#define	LEN_EFI_PAD	(EFI_LABEL_SIZE - \
			    ((5 * sizeof (diskaddr_t)) + \
			    (7 * sizeof (uint_t)) + \
			    (8 * sizeof (char)) + \
			    (1 * (sizeof (struct uuid)))))

#define	EFI_SIGNATURE	0x5452415020494645ULL

/* EFI Guid Partition Table Header -- little endian on-disk format */
typedef struct efi_gpt {
	uint64_t	efi_gpt_Signature;
	uint_t		efi_gpt_Revision;
	uint_t		efi_gpt_HeaderSize;
	uint_t		efi_gpt_HeaderCRC32;
	uint_t		efi_gpt_Reserved1;
	diskaddr_t	efi_gpt_MyLBA;
	diskaddr_t	efi_gpt_AlternateLBA;
	diskaddr_t	efi_gpt_FirstUsableLBA;
	diskaddr_t	efi_gpt_LastUsableLBA;
	struct uuid	efi_gpt_DiskGUID;
	diskaddr_t	efi_gpt_PartitionEntryLBA;
	uint_t		efi_gpt_NumberOfPartitionEntries;
	uint_t		efi_gpt_SizeOfPartitionEntry;
	uint_t		efi_gpt_PartitionEntryArrayCRC32;
	char		efi_gpt_Reserved2[LEN_EFI_PAD];
} efi_gpt_t;

/* EFI Guid Partition Entry Attributes -- little endian format */
typedef struct efi_gpe_Attrs {
	uint32_t	PartitionAttrs		:16,
			Reserved2		:16;
	uint32_t	Reserved1		:31,
			RequiredPartition	:1;
} efi_gpe_Attrs_t;

/*
 * 6a96237f-1dd2-11b2-99a6-080020736631	V_UNASSIGNED (not used as such)
 * 6a82cb45-1dd2-11b2-99a6-080020736631	V_BOOT
 * 6a85cf4d-1dd2-11b2-99a6-080020736631	V_ROOT
 * 6a87c46f-1dd2-11b2-99a6-080020736631	V_SWAP
 * 6a898cc3-1dd2-11b2-99a6-080020736631	V_USR
 * 6a8b642b-1dd2-11b2-99a6-080020736631	V_BACKUP
 * 6a8d2ac7-1dd2-11b2-99a6-080020736631	V_STAND (not used)
 * 6a8ef2e9-1dd2-11b2-99a6-080020736631	V_VAR
 * 6a90ba39-1dd2-11b2-99a6-080020736631	V_HOME
 * 6a9283a5-1dd2-11b2-99a6-080020736631	V_ALTSCTR
 * 6a945a3b-1dd2-11b2-99a6-080020736631	V_CACHE
 */

#define	EFI_UNUSED	{ 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
			    { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } }
#define	EFI_RESV1	{ 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_BOOT	{ 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_ROOT	{ 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_SWAP	{ 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_USR		{ 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_BACKUP	{ 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_RESV2	{ 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_VAR		{ 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_HOME	{ 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_ALTSCTR	{ 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_RESERVED	{ 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_SYSTEM	{ 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \
			    { 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } }
#define	EFI_LEGACY_MBR	{ 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \
			    { 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } }
#define	EFI_SYMC_PUB	{ 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_SYMC_CDS	{ 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \
			    { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
#define	EFI_MSFT_RESV	{ 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \
			    { 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } }
#define	EFI_DELL_BASIC	{ 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \
			    { 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } }
#define	EFI_DELL_RAID	{ 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \
			    { 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } }
#define	EFI_DELL_SWAP	{ 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \
			    { 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } }
#define	EFI_DELL_LVM	{ 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \
			    { 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } }
#define	EFI_DELL_RESV	{ 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \
			    { 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } }
#define	EFI_AAPL_HFS	{ 0x48465300, 0x0000, 0x11aa, 0xaa, 0x11, \
			    { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
#define	EFI_AAPL_UFS	{ 0x55465300, 0x0000, 0x11aa, 0xaa, 0x11, \
			    { 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }

/* minimum # of bytes for partition table entires, per EFI spec */
#define	EFI_MIN_ARRAY_SIZE	(16 * 1024)

#define	EFI_PART_NAME_LEN	36

/* size of the "reserved" partition, in blocks */
#define	EFI_MIN_RESV_SIZE	(16 * 1024)

/* EFI Guid Partition Entry */
typedef struct efi_gpe {
	struct uuid	efi_gpe_PartitionTypeGUID;
	struct uuid	efi_gpe_UniquePartitionGUID;
	diskaddr_t	efi_gpe_StartingLBA;
	diskaddr_t	efi_gpe_EndingLBA;
	efi_gpe_Attrs_t	efi_gpe_Attributes;
	ushort_t	efi_gpe_PartitionName[EFI_PART_NAME_LEN];
} efi_gpe_t;

/*
 * passed to the useful (we hope) routines (efi_alloc_and_read and
 * efi_write) that take this VTOC-like struct.  These routines handle
 * converting this struct into the EFI struct, generate UUIDs and
 * checksums, and perform any necessary byte-swapping to the on-disk
 * format.
 */
/* Solaris library abstraction for EFI partitons */
typedef struct dk_part	{
	diskaddr_t	p_start;	/* starting LBA */
	diskaddr_t	p_size;		/* size in blocks */
	struct uuid	p_guid;		/* partion type GUID */
	ushort_t	p_tag;		/* converted to part'n type GUID */
	ushort_t	p_flag;		/* attributes */
	char		p_name[EFI_PART_NAME_LEN]; /* partition name */
	struct uuid	p_uguid;	/* unique partition GUID */
	uint_t		p_resv[8];	/* future use - set to zero */
} dk_part_t;

/* Solaris library abstraction for an EFI GPT */
#define	EFI_VERSION102		0x00010002
#define	EFI_VERSION100		0x00010000
#define	EFI_VERSION_CURRENT	EFI_VERSION100
typedef struct dk_gpt {
	uint_t		efi_version;	/* set to EFI_VERSION_CURRENT */
	uint_t		efi_nparts;	/* number of partitions below */
	uint_t		efi_part_size;	/* size of each partition entry */
					/* efi_part_size is unused */
	uint_t		efi_lbasize;	/* size of block in bytes */
	diskaddr_t	efi_last_lba;	/* last block on the disk */
	diskaddr_t	efi_first_u_lba; /* first block after labels */
	diskaddr_t	efi_last_u_lba;	/* last block before backup labels */
	struct uuid	efi_disk_uguid;	/* unique disk GUID */
	uint_t		efi_flags;
	uint_t		efi_reserved1;	/* future use - set to zero */
	diskaddr_t	efi_altern_lba;	/* lba of alternate GPT header */
	uint_t		efi_reserved[12]; /* future use - set to zero */
	struct dk_part	efi_parts[1];	/* array of partitions */
} dk_gpt_t;

/* possible values for "efi_flags" */
#define	EFI_GPT_PRIMARY_CORRUPT	0x1	/* primary label corrupt */

/* the private ioctl between libefi and the driver */
typedef struct dk_efi {
	diskaddr_t	 dki_lba;	/* starting block */
	len_t		 dki_length;	/* length in bytes */
	union {
		efi_gpt_t 	*_dki_data;
		uint64_t	_dki_data_64;
	} dki_un;
#define	dki_data	dki_un._dki_data
#define	dki_data_64	dki_un._dki_data_64
} dk_efi_t;

struct partition64 {
	struct uuid	p_type;
	uint_t		p_partno;
	uint_t		p_resv1;
	diskaddr_t	p_start;
	diskaddr_t	p_size;
};

/*
 * Number of EFI partitions
 */
#if defined(__linux__)
#define	EFI_NUMPAR	128 /* Expected by parted-1.8.1 */
#else
#define	EFI_NUMPAR	9
#endif

#ifndef _KERNEL
extern	int	efi_alloc_and_init(int, uint32_t, struct dk_gpt **);
extern	int	efi_alloc_and_read(int, struct dk_gpt **);
extern	int	efi_write(int, struct dk_gpt *);
extern	int	efi_rescan(int);
extern	void	efi_free(struct dk_gpt *);
extern	int	efi_type(int);
extern	void	efi_err_check(struct dk_gpt *);
extern	int	efi_auto_sense(int fd, struct dk_gpt **);
extern	int	efi_use_whole_disk(int fd);
#endif

#ifdef __cplusplus
}
#endif

#endif /* _SYS_EFI_PARTITION_H */
Commit	Line	Data
7bdf406d TG	1	/*
	2	* CDDL HEADER START
	3	*
	4	* The contents of this file are subject to the terms of the
	5	* Common Development and Distribution License (the "License").
	6	* You may not use this file except in compliance with the License.
	7	*
	8	* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	9	* or http://www.opensolaris.org/os/licensing.
	10	* See the License for the specific language governing permissions
	11	* and limitations under the License.
	12	*
	13	* When distributing Covered Code, include this CDDL HEADER in each
	14	* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	15	* If applicable, add the following below this CDDL HEADER, with the
	16	* fields enclosed by brackets "[]" replaced with your own identifying
	17	* information: Portions Copyright [yyyy] [name of copyright owner]
	18	*
	19	* CDDL HEADER END
	20	*/
	21	/*
	22	* Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
	23	*/
	24
	25	#ifndef _SYS_EFI_PARTITION_H
	26	#define _SYS_EFI_PARTITION_H
	27
	28	#include <sys/uuid.h>
	29
	30	#ifdef __cplusplus
	31	extern "C" {
	32	#endif
	33
	34	/*
	35	* GUID Partition Table Header
	36	*/
	37
	38	#define EFI_MIN_LABEL_SIZE 92
	39	#define EFI_LABEL_SIZE 512
	40	#define LEN_EFI_PAD (EFI_LABEL_SIZE - \
	41	((5 * sizeof (diskaddr_t)) + \
	42	(7 * sizeof (uint_t)) + \
	43	(8 * sizeof (char)) + \
	44	(1 * (sizeof (struct uuid)))))
	45
	46	#define EFI_SIGNATURE 0x5452415020494645ULL
	47
	48	/* EFI Guid Partition Table Header -- little endian on-disk format */
	49	typedef struct efi_gpt {
	50	uint64_t efi_gpt_Signature;
	51	uint_t efi_gpt_Revision;
	52	uint_t efi_gpt_HeaderSize;
	53	uint_t efi_gpt_HeaderCRC32;
	54	uint_t efi_gpt_Reserved1;
	55	diskaddr_t efi_gpt_MyLBA;
	56	diskaddr_t efi_gpt_AlternateLBA;
	57	diskaddr_t efi_gpt_FirstUsableLBA;
	58	diskaddr_t efi_gpt_LastUsableLBA;
	59	struct uuid efi_gpt_DiskGUID;
	60	diskaddr_t efi_gpt_PartitionEntryLBA;
	61	uint_t efi_gpt_NumberOfPartitionEntries;
	62	uint_t efi_gpt_SizeOfPartitionEntry;
	63	uint_t efi_gpt_PartitionEntryArrayCRC32;
	64	char efi_gpt_Reserved2[LEN_EFI_PAD];
65	} efi_gpt_t;
66
67	/* EFI Guid Partition Entry Attributes -- little endian format */
68	typedef struct efi_gpe_Attrs {
69	uint32_t PartitionAttrs :16,
70	Reserved2 :16;
71	uint32_t Reserved1 :31,
72	RequiredPartition :1;
73	} efi_gpe_Attrs_t;
74
75	/*
76	* 6a96237f-1dd2-11b2-99a6-080020736631 V_UNASSIGNED (not used as such)
77	* 6a82cb45-1dd2-11b2-99a6-080020736631 V_BOOT
78	* 6a85cf4d-1dd2-11b2-99a6-080020736631 V_ROOT
79	* 6a87c46f-1dd2-11b2-99a6-080020736631 V_SWAP
80	* 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR
81	* 6a8b642b-1dd2-11b2-99a6-080020736631 V_BACKUP
82	* 6a8d2ac7-1dd2-11b2-99a6-080020736631 V_STAND (not used)
83	* 6a8ef2e9-1dd2-11b2-99a6-080020736631 V_VAR
84	* 6a90ba39-1dd2-11b2-99a6-080020736631 V_HOME
85	* 6a9283a5-1dd2-11b2-99a6-080020736631 V_ALTSCTR
86	* 6a945a3b-1dd2-11b2-99a6-080020736631 V_CACHE
87	*/
88
0bd31011 TG	89	#define EFI_UNUSED { 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \
	90	{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } }
	91	#define EFI_RESV1 { 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	92	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	93	#define EFI_BOOT { 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	94	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	95	#define EFI_ROOT { 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	96	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	97	#define EFI_SWAP { 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	98	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	99	#define EFI_USR { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	100	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	101	#define EFI_BACKUP { 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	102	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	103	#define EFI_RESV2 { 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	104	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	105	#define EFI_VAR { 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	106	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	107	#define EFI_HOME { 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	108	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	109	#define EFI_ALTSCTR { 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	110	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	111	#define EFI_RESERVED { 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	112	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	113	#define EFI_SYSTEM { 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \
	114	{ 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } }
	115	#define EFI_LEGACY_MBR { 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \
	116	{ 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } }
	117	#define EFI_SYMC_PUB { 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	118	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	119	#define EFI_SYMC_CDS { 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \
	120	{ 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } }
	121	#define EFI_MSFT_RESV { 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \
	122	{ 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } }
	123	#define EFI_DELL_BASIC { 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \
	124	{ 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } }
	125	#define EFI_DELL_RAID { 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \
	126	{ 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } }
	127	#define EFI_DELL_SWAP { 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \
	128	{ 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } }
	129	#define EFI_DELL_LVM { 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \
	130	{ 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } }
	131	#define EFI_DELL_RESV { 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \
	132	{ 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } }
	133	#define EFI_AAPL_HFS { 0x48465300, 0x0000, 0x11aa, 0xaa, 0x11, \
	134	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
	135	#define EFI_AAPL_UFS { 0x55465300, 0x0000, 0x11aa, 0xaa, 0x11, \
	136	{ 0x00, 0x30, 0x65, 0x43, 0xec, 0xac } }
7bdf406d TG	137
	138	/* minimum # of bytes for partition table entires, per EFI spec */
	139	#define EFI_MIN_ARRAY_SIZE (16 * 1024)
	140
	141	#define EFI_PART_NAME_LEN 36
	142
	143	/* size of the "reserved" partition, in blocks */
	144	#define EFI_MIN_RESV_SIZE (16 * 1024)
	145
	146	/* EFI Guid Partition Entry */
	147	typedef struct efi_gpe {
	148	struct uuid efi_gpe_PartitionTypeGUID;
	149	struct uuid efi_gpe_UniquePartitionGUID;
	150	diskaddr_t efi_gpe_StartingLBA;
	151	diskaddr_t efi_gpe_EndingLBA;
	152	efi_gpe_Attrs_t efi_gpe_Attributes;
	153	ushort_t efi_gpe_PartitionName[EFI_PART_NAME_LEN];
	154	} efi_gpe_t;
	155
	156	/*
	157	* passed to the useful (we hope) routines (efi_alloc_and_read and
	158	* efi_write) that take this VTOC-like struct. These routines handle
	159	* converting this struct into the EFI struct, generate UUIDs and
	160	* checksums, and perform any necessary byte-swapping to the on-disk
	161	* format.
	162	*/
	163	/* Solaris library abstraction for EFI partitons */
	164	typedef struct dk_part {
	165	diskaddr_t p_start; /* starting LBA */
	166	diskaddr_t p_size; /* size in blocks */
	167	struct uuid p_guid; /* partion type GUID */
	168	ushort_t p_tag; /* converted to part'n type GUID */
	169	ushort_t p_flag; /* attributes */
	170	char p_name[EFI_PART_NAME_LEN]; /* partition name */
	171	struct uuid p_uguid; /* unique partition GUID */
	172	uint_t p_resv[8]; /* future use - set to zero */
	173	} dk_part_t;
	174
	175	/* Solaris library abstraction for an EFI GPT */
	176	#define EFI_VERSION102 0x00010002
	177	#define EFI_VERSION100 0x00010000
	178	#define EFI_VERSION_CURRENT EFI_VERSION100
	179	typedef struct dk_gpt {
	180	uint_t efi_version; /* set to EFI_VERSION_CURRENT */
	181	uint_t efi_nparts; /* number of partitions below */
	182	uint_t efi_part_size; /* size of each partition entry */
	183	/* efi_part_size is unused */
	184	uint_t efi_lbasize; /* size of block in bytes */
	185	diskaddr_t efi_last_lba; /* last block on the disk */
	186	diskaddr_t efi_first_u_lba; /* first block after labels */
	187	diskaddr_t efi_last_u_lba; /* last block before backup labels */
	188	struct uuid efi_disk_uguid; /* unique disk GUID */
	189	uint_t efi_flags;
	190	uint_t efi_reserved1; /* future use - set to zero */
	191	diskaddr_t efi_altern_lba; /* lba of alternate GPT header */
	192	uint_t efi_reserved[12]; /* future use - set to zero */
	193	struct dk_part efi_parts[1]; /* array of partitions */
	194	} dk_gpt_t;
	195
	196	/* possible values for "efi_flags" */
	197	#define EFI_GPT_PRIMARY_CORRUPT 0x1 /* primary label corrupt */
	198
	199	/* the private ioctl between libefi and the driver */
	200	typedef struct dk_efi {
201	diskaddr_t dki_lba; /* starting block */
202	len_t dki_length; /* length in bytes */
203	union {
204	efi_gpt_t *_dki_data;
205	uint64_t _dki_data_64;
206	} dki_un;
207	#define dki_data dki_un._dki_data
208	#define dki_data_64 dki_un._dki_data_64
209	} dk_efi_t;
210
211	struct partition64 {
212	struct uuid p_type;
213	uint_t p_partno;
214	uint_t p_resv1;
215	diskaddr_t p_start;
216	diskaddr_t p_size;
217	};
218
219	/*
220	* Number of EFI partitions
221	*/
222	#if defined(__linux__)
223	#define EFI_NUMPAR 128 /* Expected by parted-1.8.1 */
224	#else
225	#define EFI_NUMPAR 9
226	#endif
227
228	#ifndef _KERNEL
229	extern int efi_alloc_and_init(int, uint32_t, struct dk_gpt **);
230	extern int efi_alloc_and_read(int, struct dk_gpt **);
231	extern int efi_write(int, struct dk_gpt *);
232	extern int efi_rescan(int);
233	extern void efi_free(struct dk_gpt *);
234	extern int efi_type(int);
235	extern void efi_err_check(struct dk_gpt *);
236	extern int efi_auto_sense(int fd, struct dk_gpt **);
237	extern int efi_use_whole_disk(int fd);
238	#endif
239
240	#ifdef __cplusplus
241	}
242	#endif
243
244	#endif /* _SYS_EFI_PARTITION_H */