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 30 extern struct loader_callbacks *callbacks; 31 extern 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 37 typedef unsigned long physaddr_t; 38 39 /* exported devices */ 40 extern struct devsw userboot_disk; 41 extern int userboot_disk_maxunit; 42 extern struct devsw host_dev; 43 44 /* access to host filesystem */ 45 extern struct fs_ops host_fsops; 46 47 struct bootinfo; 48 struct preloaded_file; 49 extern int bi_load(struct bootinfo *, struct preloaded_file *); 50 51 extern void delay(int); 52 53 extern int userboot_autoload(void); 54 extern ssize_t userboot_copyin(const void *, vm_offset_t, size_t); 55 extern ssize_t userboot_copyout(vm_offset_t, void *, size_t); 56 extern ssize_t userboot_readin(readin_handle_t, vm_offset_t, size_t); 57 extern int userboot_getdev(void **, const char *, const char **); 58 59 int bi_getboothowto(char *kargs); 60 void bi_setboothowto(int howto); 61 int bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, 62 vm_offset_t *modulep, vm_offset_t *kernend); 63 int bi_load64(char *args, vm_offset_t *modulep, vm_offset_t *kernend); 64 void bios_addsmapdata(struct preloaded_file *kfp); 65