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/*
* Copyright (C) 2008 RuggedCom, Inc.
* Richard Retanubun <RichardRetanubun@RuggedCom.com>
*
* 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 */
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