mirror of
https://github.com/openhwgroup/cvw
synced 2025-02-11 06:05:49 +00:00
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
///////////////////////////////////////////////////////////////////////
|
|
// gpt.h
|
|
//
|
|
// Written: Jaocb Pease jacob.pease@okstate.edu 7/22/2024
|
|
//
|
|
// Purpose: Header for gpt.c, contains gpt structs
|
|
//
|
|
//
|
|
//
|
|
// A component of the Wally configurable RISC-V project.
|
|
//
|
|
// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
|
|
//
|
|
// SPDX-License-Identifier: Apache-2.0 WITH SHL-2.1
|
|
//
|
|
// Licensed under the Solderpad Hardware License v 2.1 (the
|
|
// “License”); you may not use this file except in compliance with the
|
|
// License, or, at your option, the Apache License version 2.0. You
|
|
// may obtain a copy of the License at
|
|
//
|
|
// https://solderpad.org/licenses/SHL-2.1/
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, any work
|
|
// distributed under the License is distributed on an “AS IS” BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
|
// implied. See the License for the specific language governing
|
|
// permissions and limitations under the License.
|
|
///////////////////////////////////////////////////////////////////////
|
|
|
|
#pragma once
|
|
|
|
#include <stdint.h>
|
|
#include "boot.h"
|
|
|
|
// LBA 0: Protective MBR
|
|
// ignored here
|
|
|
|
// Partition Table Header (LBA 1)
|
|
typedef struct gpt_pth
|
|
{
|
|
uint64_t signature;
|
|
uint32_t revision;
|
|
uint32_t header_size; //! little endian, usually 0x5c = 92
|
|
uint32_t crc_header;
|
|
uint32_t reserved; //! must be 0
|
|
uint64_t current_lba;
|
|
uint64_t backup_lba;
|
|
uint64_t first_usable_lba;
|
|
uint64_t last_usable_lba;
|
|
uint8_t disk_guid[16];
|
|
uint64_t partition_entries_lba;
|
|
uint32_t nr_partition_entries;
|
|
uint32_t size_partition_entry; //! usually 0x80 = 128
|
|
uint32_t crc_partition_entry;
|
|
} gpt_pth_t;
|
|
|
|
// Partition Entries (LBA 2-33)
|
|
typedef struct partition_entries
|
|
{
|
|
uint8_t partition_type_guid[16];
|
|
uint8_t partition_guid[16];
|
|
uint64_t first_lba;
|
|
uint64_t last_lba; //! inclusive
|
|
uint64_t attributes;
|
|
uint8_t name[72]; //! utf16 encoded
|
|
} partition_entries_t;
|
|
|
|
// Find boot partition and load it to the destination
|
|
int gpt_load_partitions();
|