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 * $FreeBSD$ 27 */ 28 29 #include "userboot.h" 30 31 extern struct loader_callbacks *callbacks; 32 extern void *callbacks_arg; 33 34 #define CALLBACK(fn, args...) (callbacks->fn(callbacks_arg , ##args)) 35 36 #define MAXDEV 31 /* maximum number of distinct devices */ 37 38 typedef unsigned long physaddr_t; 39 40 /* exported devices */ 41 extern struct devsw userboot_disk; 42 extern int userboot_disk_maxunit; 43 extern struct devsw host_dev; 44 45 /* access to host filesystem */ 46 struct fs_ops host_fsops; 47 48 struct bootinfo; 49 struct preloaded_file; 50 extern int bi_load(struct bootinfo *, struct preloaded_file *); 51 52 extern void delay(int); 53 54 extern int userboot_autoload(void); 55 extern ssize_t userboot_copyin(const void *, vm_offset_t, size_t); 56 extern ssize_t userboot_copyout(vm_offset_t, void *, size_t); 57 extern ssize_t userboot_readin(int, vm_offset_t, size_t); 58 extern int userboot_getdev(void **, const char *, const char **); 59 char *userboot_fmtdev(void *vdev); 60 int userboot_setcurrdev(struct env_var *ev, int flags, const void *value); 61 62 int bi_getboothowto(char *kargs); 63 void bi_setboothowto(int howto); 64 vm_offset_t bi_copyenv(vm_offset_t addr); 65 int bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, 66 vm_offset_t *modulep, vm_offset_t *kernend); 67 int bi_load64(char *args, vm_offset_t *modulep, vm_offset_t *kernend); 68 void bios_addsmapdata(struct preloaded_file *kfp); 69