Add GPT (GUID partition table) spec header
Change-Id: I14652412dc3ad45f83de8579b64ccefed1ca43c0 Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
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Daniel Verkamp
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include/spdk/gpt_spec.h
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include/spdk/gpt_spec.h
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/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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* GUID Partition Table (GPT) specification definitions
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*/
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#ifndef SPDK_GPT_SPEC_H
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#define SPDK_GPT_SPEC_H
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#include <stdint.h>
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#include "spdk/assert.h"
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#pragma pack(push, 1)
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#define SPDK_MBR_SIGNATURE 0xAA55
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#define SPDK_MBR_OS_TYPE_GPT_PROTECTIVE 0xEE
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#define SPDK_MBR_OS_TYPE_EFI_SYSTEM_PARTITION 0xEF
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struct spdk_mbr_chs {
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uint8_t head;
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uint16_t sector : 6;
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uint16_t cylinder : 10;
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};
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SPDK_STATIC_ASSERT(sizeof(struct spdk_mbr_chs) == 3, "size incorrect");
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struct spdk_mbr_partition_entry {
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uint8_t reserved : 7;
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uint8_t bootable : 1;
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struct spdk_mbr_chs start_chs;
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uint8_t os_type;
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struct spdk_mbr_chs end_chs;
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uint32_t start_lba;
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uint32_t size_lba;
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};
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SPDK_STATIC_ASSERT(sizeof(struct spdk_mbr_partition_entry) == 16, "size incorrect");
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struct spdk_mbr {
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uint8_t boot_code[440];
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uint32_t disk_signature;
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uint16_t reserved_444;
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struct spdk_mbr_partition_entry partitions[4];
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uint16_t mbr_signature;
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};
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SPDK_STATIC_ASSERT(sizeof(struct spdk_mbr) == 512, "size incorrect");
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#define SPDK_GPT_SIGNATURE "EFI PART"
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#define SPDK_GPT_REVISION_1_0 0x00010000u
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struct spdk_gpt_guid {
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uint8_t raw[16];
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};
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SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_guid) == 16, "size incorrect");
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#define SPDK_GPT_GUID(a, b, c, d, e) \
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(struct spdk_gpt_guid){{ \
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(uint8_t)(a), (uint8_t)((a) >> 8), (uint8_t)((a) >> 16), (uint8_t)((a >> 24)), \
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(uint8_t)(b), (uint8_t)((b) >> 8), \
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(uint8_t)(c), (uint8_t)((c) >> 8), \
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(uint8_t)((d) >> 8), (uint8_t)(d), \
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(uint8_t)((e) >> 40), (uint8_t)((e) >> 32), (uint8_t)((e) >> 24), \
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(uint8_t)((e) >> 16), (uint8_t)((e) >> 8), (uint8_t)(e) \
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}}
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#define SPDK_GPT_PART_TYPE_UNUSED SPDK_GPT_GUID(0x00000000, 0x0000, 0x0000, 0x0000, 0x000000000000)
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#define SPDK_GPT_PART_TYPE_EFI_SYSTEM_PARTITION SPDK_GPT_GUID(0xC12A7328, 0xF81F, 0x11D2, 0xBA4B, 0x00A0C93EC93B)
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#define SPDK_GPT_PART_TYPE_LEGACY_MBR SPDK_GPT_GUID(0x024DEE41, 0x33E7, 0x11D3, 0x9D69, 0x0008C781F39F)
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struct spdk_gpt_header {
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char gpt_signature[8];
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uint32_t revision;
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uint32_t header_size;
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uint32_t header_crc32;
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uint32_t reserved;
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uint64_t my_lba;
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uint64_t alternate_lba;
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uint64_t first_usable_lba;
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uint64_t last_usable_lba;
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struct spdk_gpt_guid disk_guid;
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uint64_t partition_entry_lba;
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uint32_t num_partition_entries;
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uint32_t size_of_partition_entry;
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uint32_t partition_entry_array_crc32;
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};
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SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_header) == 92, "size incorrect");
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struct spdk_gpt_partition_entry {
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struct spdk_gpt_guid part_type_guid;
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struct spdk_gpt_guid unique_partition_guid;
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uint64_t starting_lba;
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uint64_t ending_lba;
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struct {
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uint64_t required : 1;
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uint64_t no_block_io_proto : 1;
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uint64_t legacy_bios_bootable : 1;
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uint64_t reserved_uefi : 45;
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uint64_t guid_specific : 16;
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} attr;
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uint8_t partition_name[72];
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};
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SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_partition_entry) == 128, "size incorrect");
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#pragma pack(pop)
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#endif
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