Home | History | Annotate | Line # | Download | only in boot 
      1 /*	$NetBSD: bootinfo.c,v 1.1 2014/02/24 07:23:43 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jonathan Stone, Michael Hitch, Simon Burge, and Nick Hudson.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/param.h>
     33 #include <machine/types.h>
     34 #include <lib/libsa/stand.h>
     35 #include <lib/libkern/libkern.h>
     36 
     37 #include "bootinfo.h"
     38 
     39 struct bootinfo bootinfo;
     40 
     41 void
     42 bi_init(void)
     43 {
     44 	struct btinfo_magic bi_magic;
     45 
     46 	memset(&bootinfo, 0, sizeof(bootinfo));
     47 
     48 	bi_magic.magic = BOOTINFO_MAGIC;
     49 	BI_ADD(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic));
     50 }
     51 
     52 void
     53 bi_add(struct btinfo_common *what, int type, size_t size)
     54 {
     55 
     56 	what->len = ALIGN(size);
     57 	what->type = type;
     58 	memcpy(&bootinfo.bi_data[bootinfo.bi_offset], what, size);
     59 
     60 	bootinfo.bi_offset += what->len;
     61 	bootinfo.bi_nentries++;
     62 }
     63