numam-spdk/include/spdk/gpt_spec.h
Daniel Verkamp cb29ce869f bdev/gpt: dump partition name
Change-Id: I1899a47fa9d9821c16ea648bbe3290f6306d0e3d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/368626
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-07-12 18:12:52 -04:00

145 lines
4.6 KiB
C

/*-
* BSD LICENSE
*
* Copyright (c) Intel Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file
* GUID Partition Table (GPT) specification definitions
*/
#ifndef SPDK_GPT_SPEC_H
#define SPDK_GPT_SPEC_H
#include "spdk/stdinc.h"
#include "spdk/assert.h"
#pragma pack(push, 1)
#define SPDK_MBR_SIGNATURE 0xAA55
#define SPDK_MBR_OS_TYPE_GPT_PROTECTIVE 0xEE
#define SPDK_MBR_OS_TYPE_EFI_SYSTEM_PARTITION 0xEF
struct spdk_mbr_chs {
uint8_t head;
uint16_t sector : 6;
uint16_t cylinder : 10;
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_mbr_chs) == 3, "size incorrect");
struct spdk_mbr_partition_entry {
uint8_t reserved : 7;
uint8_t bootable : 1;
struct spdk_mbr_chs start_chs;
uint8_t os_type;
struct spdk_mbr_chs end_chs;
uint32_t start_lba;
uint32_t size_lba;
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_mbr_partition_entry) == 16, "size incorrect");
struct spdk_mbr {
uint8_t boot_code[440];
uint32_t disk_signature;
uint16_t reserved_444;
struct spdk_mbr_partition_entry partitions[4];
uint16_t mbr_signature;
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_mbr) == 512, "size incorrect");
#define SPDK_GPT_SIGNATURE "EFI PART"
#define SPDK_GPT_REVISION_1_0 0x00010000u
struct spdk_gpt_guid {
uint8_t raw[16];
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_guid) == 16, "size incorrect");
#define SPDK_GPT_GUID(a, b, c, d, e) \
(struct spdk_gpt_guid){{ \
(uint8_t)(a), (uint8_t)(((uint32_t)a) >> 8), \
(uint8_t)(((uint32_t)a) >> 16), (uint8_t)(((uint32_t)a >> 24)), \
(uint8_t)(b), (uint8_t)(((uint16_t)b) >> 8), \
(uint8_t)(c), (uint8_t)(((uint16_t)c) >> 8), \
(uint8_t)(((uint16_t)d) >> 8), (uint8_t)(d), \
(uint8_t)(((uint64_t)e) >> 40), (uint8_t)(((uint64_t)e) >> 32), (uint8_t)(((uint64_t)e) >> 24), \
(uint8_t)(((uint64_t)e) >> 16), (uint8_t)(((uint64_t)e) >> 8), (uint8_t)(e) \
}}
#define SPDK_GPT_PART_TYPE_UNUSED SPDK_GPT_GUID(0x00000000, 0x0000, 0x0000, 0x0000, 0x000000000000)
#define SPDK_GPT_PART_TYPE_EFI_SYSTEM_PARTITION SPDK_GPT_GUID(0xC12A7328, 0xF81F, 0x11D2, 0xBA4B, 0x00A0C93EC93B)
#define SPDK_GPT_PART_TYPE_LEGACY_MBR SPDK_GPT_GUID(0x024DEE41, 0x33E7, 0x11D3, 0x9D69, 0x0008C781F39F)
struct spdk_gpt_header {
char gpt_signature[8];
uint32_t revision;
uint32_t header_size;
uint32_t header_crc32;
uint32_t reserved;
uint64_t my_lba;
uint64_t alternate_lba;
uint64_t first_usable_lba;
uint64_t last_usable_lba;
struct spdk_gpt_guid disk_guid;
uint64_t partition_entry_lba;
uint32_t num_partition_entries;
uint32_t size_of_partition_entry;
uint32_t partition_entry_array_crc32;
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_header) == 92, "size incorrect");
struct spdk_gpt_partition_entry {
struct spdk_gpt_guid part_type_guid;
struct spdk_gpt_guid unique_partition_guid;
uint64_t starting_lba;
uint64_t ending_lba;
struct {
uint64_t required : 1;
uint64_t no_block_io_proto : 1;
uint64_t legacy_bios_bootable : 1;
uint64_t reserved_uefi : 45;
uint64_t guid_specific : 16;
} attr;
uint16_t partition_name[36];
};
SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_partition_entry) == 128, "size incorrect");
#pragma pack(pop)
#endif