1223695Sdfr/*- 2223695Sdfr * Copyright (c) 2011 Google, Inc. 3223695Sdfr * All rights reserved. 4223695Sdfr * 5223695Sdfr * Redistribution and use in source and binary forms, with or without 6223695Sdfr * modification, are permitted provided that the following conditions 7223695Sdfr * are met: 8223695Sdfr * 1. Redistributions of source code must retain the above copyright 9223695Sdfr * notice, this list of conditions and the following disclaimer. 10223695Sdfr * 2. Redistributions in binary form must reproduce the above copyright 11223695Sdfr * notice, this list of conditions and the following disclaimer in the 12223695Sdfr * documentation and/or other materials provided with the distribution. 13223695Sdfr * 14223695Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15223695Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16223695Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17223695Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18223695Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19223695Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20223695Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21223695Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22223695Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23223695Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24223695Sdfr * SUCH DAMAGE. 25223695Sdfr * 26223695Sdfr * $FreeBSD$ 27223695Sdfr */ 28223695Sdfr 29223695Sdfr#include "userboot.h" 30223695Sdfr 31243243Saeextern struct loader_callbacks *callbacks; 32223695Sdfrextern void *callbacks_arg; 33223695Sdfr 34223695Sdfr#define CALLBACK(fn, args...) (callbacks->fn(callbacks_arg , ##args)) 35223695Sdfr 36223695Sdfr#define MAXDEV 31 /* maximum number of distinct devices */ 37223695Sdfr 38223695Sdfrtypedef unsigned long physaddr_t; 39223695Sdfr 40223695Sdfr/* exported devices */ 41223695Sdfrextern struct devsw userboot_disk; 42223695Sdfrextern int userboot_disk_maxunit; 43223695Sdfrextern struct devsw host_dev; 44223695Sdfr 45223695Sdfr/* access to host filesystem */ 46223695Sdfrstruct fs_ops host_fsops; 47223695Sdfr 48223695Sdfrstruct bootinfo; 49223695Sdfrstruct preloaded_file; 50223695Sdfrextern int bi_load(struct bootinfo *, struct preloaded_file *); 51223695Sdfr 52223695Sdfrextern void delay(int); 53223695Sdfr 54223695Sdfrextern int userboot_autoload(void); 55223695Sdfrextern ssize_t userboot_copyin(const void *, vm_offset_t, size_t); 56223695Sdfrextern ssize_t userboot_copyout(vm_offset_t, void *, size_t); 57223695Sdfrextern ssize_t userboot_readin(int, vm_offset_t, size_t); 58223695Sdfrextern int userboot_getdev(void **, const char *, const char **); 59223695Sdfrchar *userboot_fmtdev(void *vdev); 60223695Sdfrint userboot_setcurrdev(struct env_var *ev, int flags, const void *value); 61223695Sdfr 62223695Sdfrint bi_getboothowto(char *kargs); 63223695Sdfrvoid bi_setboothowto(int howto); 64223695Sdfrvm_offset_t bi_copyenv(vm_offset_t addr); 65223695Sdfrint bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, 66223695Sdfr vm_offset_t *modulep, vm_offset_t *kernend); 67223695Sdfrint bi_load64(char *args, vm_offset_t *modulep, vm_offset_t *kernend); 68