Add GPT (GUID partition table) spec header

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/**

* \file

* GUID Partition Table (GPT) specification definitions

*/

#ifndef SPDK_GPT_SPEC_H

#define SPDK_GPT_SPEC_H

#include <stdint.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)((a) >> 8), (uint8_t)((a) >> 16), (uint8_t)((a >> 24)), \

		(uint8_t)(b), (uint8_t)((b) >> 8), \

		(uint8_t)(c), (uint8_t)((c) >> 8), \

		(uint8_t)((d) >> 8), (uint8_t)(d), \

		(uint8_t)((e) >> 40), (uint8_t)((e) >> 32), (uint8_t)((e) >> 24), \

		(uint8_t)((e) >> 16), (uint8_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;

	uint8_t partition_name[72];

};

SPDK_STATIC_ASSERT(sizeof(struct spdk_gpt_partition_entry) == 128, "size incorrect");

#pragma pack(pop)

#endif