1/*-
2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD$");
29
30#include <sys/param.h>
31#include <sys/exec.h>
32#include <sys/linker.h>
33#include <string.h>
34#include <machine/bootinfo.h>
35#include <machine/elf.h>
36#include <stand.h>
37
38#include <efi.h>
39#include <efilib.h>
40
41#include "bootstrap.h"
42#include "../libi386/libi386.h"
43#include "../btx/lib/btxv86.h"
44
45extern void __exec(caddr_t addr, ...);
46extern int bi_load(char *args, vm_offset_t *modulep, vm_offset_t *kernendp);
47
48static int	elf32_exec(struct preloaded_file *amp);
49static int	elf32_obj_exec(struct preloaded_file *amp);
50
51struct file_format i386_elf = { elf32_loadfile, elf32_exec };
52struct file_format i386_elf_obj = { elf32_obj_loadfile, elf32_obj_exec };
53
54struct file_format *file_formats[] = {
55	&i386_elf,
56	&i386_elf_obj,
57	NULL
58};
59
60/*
61 * There is an ELF kernel and one or more ELF modules loaded.
62 * We wish to start executing the kernel image, so make such
63 * preparations as are required, and do so.
64 */
65static int
66elf32_exec(struct preloaded_file *fp)
67{
68    struct file_metadata	*md;
69    Elf_Ehdr 			*ehdr;
70    vm_offset_t			entry, bootinfop, modulep, kernend;
71    int				boothowto, err, bootdev;
72
73    if ((md = file_findmetadata(fp, MODINFOMD_ELFHDR)) == NULL)
74	return(EFTYPE);
75    ehdr = (Elf_Ehdr *)&(md->md_data);
76
77    efi_time_fini();
78
79    entry = ehdr->e_entry & 0xffffff;
80
81    printf("Start @ 0x%x ...\n", entry);
82
83    err = bi_load(fp->f_args, &modulep, &kernend);
84    if (err != 0) {
85	efi_time_init();
86	return(err);
87    }
88
89    /* At this point we've called ExitBootServices, so we can't call
90     * printf or any other function that uses Boot Services */
91
92    dev_cleanup();
93    __exec((void *)entry, boothowto, bootdev, 0, 0, 0, bootinfop, modulep, kernend);
94
95    panic("exec returned");
96}
97
98static int
99elf32_obj_exec(struct preloaded_file *fp)
100{
101	return (EFTYPE);
102}
103