bootinfo.c revision 1.1.18.2
1 1.1.18.2 yamt /* $NetBSD: bootinfo.c,v 1.1.18.2 2006/06/21 14:56:40 yamt Exp $ */ 2 1.1.18.2 yamt 3 1.1.18.2 yamt /*- 4 1.1.18.2 yamt * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 1.1.18.2 yamt * All rights reserved. 6 1.1.18.2 yamt * 7 1.1.18.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.1.18.2 yamt * by Jonathan Stone, Michael Hitch and Simon Burge. 9 1.1.18.2 yamt * 10 1.1.18.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.1.18.2 yamt * modification, are permitted provided that the following conditions 12 1.1.18.2 yamt * are met: 13 1.1.18.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.1.18.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.18.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.1.18.2 yamt * documentation and/or other materials provided with the distribution. 18 1.1.18.2 yamt * 3. All advertising materials mentioning features or use of this software 19 1.1.18.2 yamt * must display the following acknowledgement: 20 1.1.18.2 yamt * This product includes software developed by the NetBSD 21 1.1.18.2 yamt * Foundation, Inc. and its contributors. 22 1.1.18.2 yamt * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.18.2 yamt * contributors may be used to endorse or promote products derived 24 1.1.18.2 yamt * from this software without specific prior written permission. 25 1.1.18.2 yamt * 26 1.1.18.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.18.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.18.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.18.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.18.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.18.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.18.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.18.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.18.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.18.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.18.2 yamt * POSSIBILITY OF SUCH DAMAGE. 37 1.1.18.2 yamt */ 38 1.1.18.2 yamt 39 1.1.18.2 yamt #include <sys/param.h> 40 1.1.18.2 yamt #include <machine/types.h> 41 1.1.18.2 yamt #include <machine/bootinfo.h> 42 1.1.18.2 yamt #include <lib/libsa/stand.h> 43 1.1.18.2 yamt #include <lib/libkern/libkern.h> 44 1.1.18.2 yamt 45 1.1.18.2 yamt #include "boot.h" 46 1.1.18.2 yamt 47 1.1.18.2 yamt static char *bootinfo = NULL; 48 1.1.18.2 yamt static char *bi_next; 49 1.1.18.2 yamt static int bi_size; 50 1.1.18.2 yamt 51 1.1.18.2 yamt u_long 52 1.1.18.2 yamt bi_init(addr) 53 1.1.18.2 yamt u_long addr; 54 1.1.18.2 yamt { 55 1.1.18.2 yamt struct btinfo_common *bi; 56 1.1.18.2 yamt struct btinfo_magic bi_magic; 57 1.1.18.2 yamt uint64_t *endp; 58 1.1.18.2 yamt 59 1.1.18.2 yamt endp = (uint64_t *)ALIGN(addr); 60 1.1.18.2 yamt 61 1.1.18.2 yamt /* 62 1.1.18.2 yamt * Allocate and zero-fill bootinfo structure. 63 1.1.18.2 yamt */ 64 1.1.18.2 yamt sparc64_memset(endp, 0, BOOTINFO_SIZE); 65 1.1.18.2 yamt 66 1.1.18.2 yamt /* 67 1.1.18.2 yamt * For the first word we load our end address, 68 1.1.18.2 yamt * giving enough space for the bootinfo structure. 69 1.1.18.2 yamt */ 70 1.1.18.2 yamt endp[0] = (uint64_t)(u_long)((char *)endp + BOOTINFO_SIZE); 71 1.1.18.2 yamt bootinfo = (char *)ALIGN(&endp[2]); 72 1.1.18.2 yamt endp[1] = (uint64_t)(u_long)bootinfo; 73 1.1.18.2 yamt bi = (struct btinfo_common *)bootinfo; 74 1.1.18.2 yamt bi->next = bi->type = 0; 75 1.1.18.2 yamt bi_next = bootinfo; 76 1.1.18.2 yamt bi_size = 0; 77 1.1.18.2 yamt 78 1.1.18.2 yamt bi_magic.magic = BOOTINFO_MAGIC; 79 1.1.18.2 yamt bi_add(&bi_magic, BTINFO_MAGIC, sizeof(bi_magic)); 80 1.1.18.2 yamt return (u_long) endp; 81 1.1.18.2 yamt } 82 1.1.18.2 yamt 83 1.1.18.2 yamt void 84 1.1.18.2 yamt bi_add(new, type, size) 85 1.1.18.2 yamt void *new; 86 1.1.18.2 yamt int type; 87 1.1.18.2 yamt size_t size; 88 1.1.18.2 yamt { 89 1.1.18.2 yamt struct btinfo_common *bi; 90 1.1.18.2 yamt 91 1.1.18.2 yamt if (bi_size + size > BOOTINFO_SIZE) 92 1.1.18.2 yamt return; /* XXX error? */ 93 1.1.18.2 yamt 94 1.1.18.2 yamt bi = new; 95 1.1.18.2 yamt bi->next = ALIGN(size); 96 1.1.18.2 yamt bi->type = type; 97 1.1.18.2 yamt sparc64_memcpy(bi_next, new, size); 98 1.1.18.2 yamt bi_next += ALIGN(size); 99 1.1.18.2 yamt 100 1.1.18.2 yamt bi = (struct btinfo_common *)bi_next; 101 1.1.18.2 yamt bi->next = bi->type = 0; 102 1.1.18.2 yamt } 103
Indexes created Tue Oct 21 08:09:48 GMT 2025