[J-u-boot.git] / disk / part_efi.h

/*
 * Copyright (C) 2008 RuggedCom, Inc.
 * Richard Retanubun <[email protected]>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * See also linux/fs/partitions/efi.h
 *
 * EFI GUID Partition Table
 * Per Intel EFI Specification v1.02
 * http://developer.intel.com/technology/efi/efi.htm
*/

#ifndef _DISK_PART_EFI_H
#define _DISK_PART_EFI_H

#define MSDOS_MBR_SIGNATURE 0xAA55
#define EFI_PMBR_OSTYPE_EFI 0xEF
#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE

#define GPT_BLOCK_SIZE 512
#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
#define GPT_HEADER_REVISION_V1 0x00010000
#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
#define GPT_ENTRY_NAME "gpt"

#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
	((efi_guid_t) \
	{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
		(b) & 0xff, ((b) >> 8) & 0xff, \
		(c) & 0xff, ((c) >> 8) & 0xff, \
		(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})

#define PARTITION_SYSTEM_GUID \
	EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
		0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
#define LEGACY_MBR_PARTITION_GUID \
	EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
		0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
#define PARTITION_MSFT_RESERVED_GUID \
	EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
		0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
#define PARTITION_BASIC_DATA_GUID \
	EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
		0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
#define PARTITION_LINUX_RAID_GUID \
	EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
		0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
#define PARTITION_LINUX_SWAP_GUID \
	EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
		0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
#define PARTITION_LINUX_LVM_GUID \
	EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
		0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)

/* linux/include/efi.h */
typedef unsigned short efi_char16_t;

typedef struct {
	unsigned char b[16];
} efi_guid_t;

/* based on linux/include/genhd.h */
struct partition {
	unsigned char boot_ind;		/* 0x80 - active */
	unsigned char head;		/* starting head */
	unsigned char sector;		/* starting sector */
	unsigned char cyl;		/* starting cylinder */
	unsigned char sys_ind;		/* What partition type */
	unsigned char end_head;		/* end head */
	unsigned char end_sector;	/* end sector */
	unsigned char end_cyl;		/* end cylinder */
	unsigned char start_sect[4];	/* starting sector counting from 0 */
	unsigned char nr_sects[4];	/* nr of sectors in partition */
} __attribute__ ((packed));

/* based on linux/fs/partitions/efi.h */
typedef struct _gpt_header {
	unsigned char signature[8];
	unsigned char revision[4];
	unsigned char header_size[4];
	unsigned char header_crc32[4];
	unsigned char reserved1[4];
	unsigned char my_lba[8];
	unsigned char alternate_lba[8];
	unsigned char first_usable_lba[8];
	unsigned char last_usable_lba[8];
	efi_guid_t disk_guid;
	unsigned char partition_entry_lba[8];
	unsigned char num_partition_entries[4];
	unsigned char sizeof_partition_entry[4];
	unsigned char partition_entry_array_crc32[4];
	unsigned char reserved2[GPT_BLOCK_SIZE - 92];
} __attribute__ ((packed)) gpt_header;

typedef union _gpt_entry_attributes {
	struct {
		unsigned long long required_to_function:1;
		unsigned long long no_block_io_protocol:1;
		unsigned long long legacy_bios_bootable:1;
		unsigned long long reserved:45;
		unsigned long long type_guid_specific:16;
	} fields;
	unsigned long long raw;
} __attribute__ ((packed)) gpt_entry_attributes;

#define PARTNAME_SZ	(72 / sizeof(efi_char16_t))
typedef struct _gpt_entry {
	efi_guid_t partition_type_guid;
	efi_guid_t unique_partition_guid;
	unsigned char starting_lba[8];
	unsigned char ending_lba[8];
	gpt_entry_attributes attributes;
	efi_char16_t partition_name[PARTNAME_SZ];
}
__attribute__ ((packed)) gpt_entry;

typedef struct _legacy_mbr {
	unsigned char boot_code[440];
	unsigned char unique_mbr_signature[4];
	unsigned char unknown[2];
	struct partition partition_record[4];
	unsigned char signature[2];
} __attribute__ ((packed)) legacy_mbr;

#endif	/* _DISK_PART_EFI_H */
Commit	Line	Data
07f3d789	1	/*
	2	* Copyright (C) 2008 RuggedCom, Inc.
	3	* Richard Retanubun <[email protected]>
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	/*
	25	* See also linux/fs/partitions/efi.h
	26	*
	27	* EFI GUID Partition Table
	28	* Per Intel EFI Specification v1.02
	29	* http://developer.intel.com/technology/efi/efi.htm
	30	*/
	31
	32	#ifndef _DISK_PART_EFI_H
	33	#define _DISK_PART_EFI_H
	34
	35	#define MSDOS_MBR_SIGNATURE 0xAA55
	36	#define EFI_PMBR_OSTYPE_EFI 0xEF
	37	#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
	38
	39	#define GPT_BLOCK_SIZE 512
	40	#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
	41	#define GPT_HEADER_REVISION_V1 0x00010000
	42	#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
	43	#define GPT_ENTRY_NAME "gpt"
	44
	45	#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
3cbd8231 WD	46	((efi_guid_t) \
	47	{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
	48	(b) & 0xff, ((b) >> 8) & 0xff, \
	49	(c) & 0xff, ((c) >> 8) & 0xff, \
	50	(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
07f3d789	51
07f3d789	52	#define PARTITION_SYSTEM_GUID \
3cbd8231 WD	53	EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
3cbd8231 WD	54	0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
07f3d789	55	#define LEGACY_MBR_PARTITION_GUID \
3cbd8231 WD	56	EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
3cbd8231 WD	57	0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
07f3d789	58	#define PARTITION_MSFT_RESERVED_GUID \
3cbd8231 WD	59	EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
3cbd8231 WD	60	0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
07f3d789	61	#define PARTITION_BASIC_DATA_GUID \
3cbd8231 WD	62	EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
3cbd8231 WD	63	0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
07f3d789	64	#define PARTITION_LINUX_RAID_GUID \
3cbd8231 WD	65	EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
3cbd8231 WD	66	0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
07f3d789	67	#define PARTITION_LINUX_SWAP_GUID \
3cbd8231 WD	68	EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
3cbd8231 WD	69	0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
07f3d789	70	#define PARTITION_LINUX_LVM_GUID \
3cbd8231 WD	71	EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
3cbd8231 WD	72	0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
07f3d789	73
	74	/* linux/include/efi.h */
	75	typedef unsigned short efi_char16_t;
	76
	77	typedef struct {
	78	unsigned char b[16];
	79	} efi_guid_t;
	80
	81	/* based on linux/include/genhd.h */
	82	struct partition {
3cbd8231 WD	83	unsigned char boot_ind; /* 0x80 - active */
	84	unsigned char head; /* starting head */
	85	unsigned char sector; /* starting sector */
	86	unsigned char cyl; /* starting cylinder */
	87	unsigned char sys_ind; /* What partition type */
	88	unsigned char end_head; /* end head */
07f3d789	89	unsigned char end_sector; /* end sector */
3cbd8231	90	unsigned char end_cyl; /* end cylinder */
07f3d789	91	unsigned char start_sect[4]; /* starting sector counting from 0 */
	92	unsigned char nr_sects[4]; /* nr of sectors in partition */
	93	} __attribute__ ((packed));
	94
	95	/* based on linux/fs/partitions/efi.h */
	96	typedef struct _gpt_header {
	97	unsigned char signature[8];
	98	unsigned char revision[4];
	99	unsigned char header_size[4];
	100	unsigned char header_crc32[4];
	101	unsigned char reserved1[4];
	102	unsigned char my_lba[8];
	103	unsigned char alternate_lba[8];
	104	unsigned char first_usable_lba[8];
	105	unsigned char last_usable_lba[8];
	106	efi_guid_t disk_guid;
	107	unsigned char partition_entry_lba[8];
	108	unsigned char num_partition_entries[4];
	109	unsigned char sizeof_partition_entry[4];
	110	unsigned char partition_entry_array_crc32[4];
	111	unsigned char reserved2[GPT_BLOCK_SIZE - 92];
	112	} __attribute__ ((packed)) gpt_header;
	113
13bf2f55 SW	114	typedef union _gpt_entry_attributes {
	115	struct {
	116	unsigned long long required_to_function:1;
	117	unsigned long long no_block_io_protocol:1;
	118	unsigned long long legacy_bios_bootable:1;
	119	unsigned long long reserved:45;
	120	unsigned long long type_guid_specific:16;
	121	} fields;
	122	unsigned long long raw;
07f3d789	123	} __attribute__ ((packed)) gpt_entry_attributes;
07f3d789	124
6eecc030	125	#define PARTNAME_SZ (72 / sizeof(efi_char16_t))
07f3d789	126	typedef struct _gpt_entry {
	127	efi_guid_t partition_type_guid;
	128	efi_guid_t unique_partition_guid;
	129	unsigned char starting_lba[8];
	130	unsigned char ending_lba[8];
	131	gpt_entry_attributes attributes;
6eecc030	132	efi_char16_t partition_name[PARTNAME_SZ];
07f3d789	133	}
	134	__attribute__ ((packed)) gpt_entry;
	135
	136	typedef struct _legacy_mbr {
	137	unsigned char boot_code[440];
	138	unsigned char unique_mbr_signature[4];
	139	unsigned char unknown[2];
	140	struct partition partition_record[4];
	141	unsigned char signature[2];
	142	} __attribute__ ((packed)) legacy_mbr;
	143
3cbd8231	144	#endif /* _DISK_PART_EFI_H */