1/*-
2 * Copyright (c) 2001 Benno Rice <benno@FreeBSD.org>
3 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28#include <sys/param.h>
29#include <sys/linker.h>
30
31#include <machine/md_var.h>
32#include <machine/metadata.h>
33#include <machine/elf.h>
34
35#include <stand.h>
36
37#include <efi.h>
38#include <efilib.h>
39
40#include "bootstrap.h"
41#include "loader_efi.h"
42
43extern int bi_load(char *, vm_offset_t *, vm_offset_t *, bool);
44
45static int
46__elfN(exec)(struct preloaded_file *fp)
47{
48	struct file_metadata *fmp;
49	vm_offset_t modulep, kernend;
50	Elf_Ehdr *e;
51	int error;
52	void (*entry)(void *);
53
54	if ((fmp = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
55		return (EFTYPE);
56
57	e = (Elf_Ehdr *)&fmp->md_data;
58
59	efi_time_fini();
60
61	entry = efi_translate(e->e_entry);
62
63	printf("Kernel entry at %p...\n", entry);
64	printf("Kernel args: %s\n", fp->f_args);
65
66	if ((error = bi_load(fp->f_args, &modulep, &kernend, true)) != 0) {
67		efi_time_init();
68		return (error);
69	}
70
71	/*
72	 * At this point we've called ExitBootServices, so we can't call
73	 * printf or any other function that uses Boot Services
74	 */
75	dev_cleanup();
76
77	(*entry)((void *)modulep);
78	panic("exec returned");
79}
80
81static struct file_format riscv_elf = {
82	__elfN(loadfile),
83	__elfN(exec)
84};
85
86struct file_format *file_formats[] = {
87	&riscv_elf,
88	NULL
89};
90