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70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
///////////////////////////////////////////////////////////////////////
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// gpt.h
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//
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// Written: Jaocb Pease jacob.pease@okstate.edu 7/22/2024
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//
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// Purpose: Header for gpt.c, contains gpt structs
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//
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//
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//
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// A component of the Wally configurable RISC-V project.
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//
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// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
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//
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// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
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//
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// Licensed under the Solderpad Hardware License v 2.1 (the
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// “License”); you may not use this file except in compliance with the
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// License, or, at your option, the Apache License version 2.0. You
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// may obtain a copy of the License at
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//
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// https://solderpad.org/licenses/SHL-2.1/
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//
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// Unless required by applicable law or agreed to in writing, any work
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// distributed under the License is distributed on an “AS IS” BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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///////////////////////////////////////////////////////////////////////
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#pragma once
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#include <stdint.h>
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#include "boot.h"
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// LBA 0: Protective MBR
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// ignored here
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// Partition Table Header (LBA 1)
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typedef struct gpt_pth
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{
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uint64_t signature;
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uint32_t revision;
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uint32_t header_size; //! little endian, usually 0x5c = 92
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uint32_t crc_header;
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uint32_t reserved; //! must be 0
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uint64_t current_lba;
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uint64_t backup_lba;
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uint64_t first_usable_lba;
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uint64_t last_usable_lba;
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uint8_t disk_guid[16];
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uint64_t partition_entries_lba;
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uint32_t nr_partition_entries;
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uint32_t size_partition_entry; //! usually 0x80 = 128
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uint32_t crc_partition_entry;
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} gpt_pth_t;
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// Partition Entries (LBA 2-33)
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typedef struct partition_entries
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{
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uint8_t partition_type_guid[16];
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uint8_t partition_guid[16];
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uint64_t first_lba;
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uint64_t last_lba; //! inclusive
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uint64_t attributes;
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uint8_t name[72]; //! utf16 encoded
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} partition_entries_t;
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// Find boot partition and load it to the destination
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int gpt_load_partitions();
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