1/*-
2 * Copyright (c) 2011 Google, Inc.
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 "userboot.h"
28#include <readin.h>
29
30extern struct loader_callbacks *callbacks;
31extern void *callbacks_arg;
32
33#define	CALLBACK(fn, args...) (callbacks->fn(callbacks_arg , ##args))
34
35#define	MAXDEV	31	/* maximum number of distinct devices */
36
37typedef unsigned long physaddr_t;
38
39/* exported devices */
40extern struct devsw userboot_disk;
41extern int userboot_disk_maxunit;
42extern struct devsw host_dev;
43
44/* access to host filesystem */
45extern struct fs_ops host_fsops;
46
47struct bootinfo;
48struct preloaded_file;
49extern int		bi_load(struct bootinfo *, struct preloaded_file *);
50
51extern void delay(int);
52
53extern int userboot_autoload(void);
54extern ssize_t userboot_copyin(const void *, vm_offset_t, size_t);
55extern ssize_t userboot_copyout(vm_offset_t, void *, size_t);
56extern ssize_t userboot_readin(readin_handle_t, vm_offset_t, size_t);
57extern int userboot_getdev(void **, const char *, const char **);
58
59int	bi_getboothowto(char *kargs);
60void	bi_setboothowto(int howto);
61int	bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip,
62    vm_offset_t *modulep, vm_offset_t *kernend);
63int	bi_load64(char *args, vm_offset_t *modulep, vm_offset_t *kernend);
64void	bios_addsmapdata(struct preloaded_file *kfp);
65