1/* $NetBSD: boot.c,v 1.7 2016/06/11 06:41:12 dholland Exp $ */ 2 3/* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 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 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)boot.c 8.1 (Berkeley) 6/10/93 35 */ 36 37#include <lib/libsa/stand.h> 38#include <lib/libkern/libkern.h> 39#include <lib/libsa/loadfile.h> 40 41#include <sys/param.h> 42#include <sys/exec.h> 43#include <sys/exec_ecoff.h> 44 45#include "stand/common/common.h" 46#include "stand/common/cfe_api.h" 47 48#include <machine/autoconf.h> 49 50#if !defined(UNIFIED_BOOTBLOCK) && !defined(SECONDARY_BOOTBLOCK) 51#error not UNIFIED_BOOTBLOCK and not SECONDARY_BOOTBLOCK 52#endif 53 54char boot_file[128]; 55char boot_flags[128]; 56extern int debug; 57 58struct bootinfo_v1 bootinfo; 59 60paddr_t ffp_save, ptbr_save; 61 62int debug; 63 64char *kernelnames[] = { 65 "netbsd", "netbsd.gz", 66 "netbsd.bak", "netbsd.bak.gz", 67 "netbsd.old", "netbsd.old.gz", 68 "onetbsd", "onetbsd.gz", 69 "netbsd.mips", "netbsd.mips.gz", 70 NULL 71}; 72 73int 74#if defined(UNIFIED_BOOTBLOCK) 75main(long fwhandle,long evector,long fwentry,long fwseal) 76#else /* defined(SECONDARY_BOOTBLOCK) */ 77main(long fwhandle,long fd,long fwentry) 78#endif 79{ 80 char *name, **namep; 81 u_long marks[MARK_MAX]; 82 u_int32_t entry; 83 int win; 84 85 /* Init prom callback vector. */ 86 cfe_init(fwhandle,fwentry); 87 88 /* Init the console device */ 89 init_console(); 90 91 /* print a banner */ 92 printf("\n"); 93 printf("NetBSD/sbmips " NETBSD_VERS " " BOOT_TYPE_NAME " Bootstrap, Revision %s\n", 94 bootprog_rev); 95 printf("\n"); 96 97 /* set up the booted device descriptor */ 98#if defined(UNIFIED_BOOTBLOCK) 99 if (!booted_dev_open()) { 100 printf("Boot device (%s) open failed.\n", 101 booted_dev_name[0] ? booted_dev_name : "unknown"); 102 goto fail; 103 } 104#else /* defined(SECONDARY_BOOTBLOCK) */ 105 booted_dev_setfd(fd); 106#endif 107 108 printf("\n"); 109 110 boot_file[0] = 0; 111 cfe_getenv("KERNEL_FILE",boot_file,sizeof(boot_file)); 112 113 boot_flags[0] = 0; 114 cfe_getenv("BOOT_FLAGS",boot_flags,sizeof(boot_flags)); 115 116 if (boot_file[0] != 0) 117 (void)printf("Boot file: %s\n", boot_file); 118 (void)printf("Boot flags: %s\n", boot_flags); 119 120 if (strchr(boot_flags, 'i') || strchr(boot_flags, 'I')) { 121 printf("Boot file: "); 122 kgets(boot_file, sizeof(boot_file)); 123 } 124 125 memset(marks, 0, sizeof marks); 126 if (boot_file[0] != '\0') { 127 name = boot_file; 128 win = loadfile(name, marks, LOAD_KERNEL) == 0; 129 } else { 130 name = NULL; /* XXX gcc -Wuninitialized */ 131 for (namep = kernelnames, win = 0; *namep != NULL && !win; 132 namep++) 133 win = loadfile(name = *namep, marks, LOAD_KERNEL) == 0; 134 } 135 136 entry = marks[MARK_ENTRY]; 137 booted_dev_close(); 138 printf("\n"); 139 if (!win) 140 goto fail; 141 142 (void)printf("Entering %s at 0x%lx...\n", name, (long)entry); 143 144 cfe_flushcache(0); 145 146 memset(&bootinfo, 0,sizeof(bootinfo)); 147 bootinfo.version = BOOTINFO_VERSION; 148 bootinfo.reserved = 0; 149 bootinfo.ssym = marks[MARK_SYM]; 150 bootinfo.esym = marks[MARK_END]; 151 strncpy(bootinfo.boot_flags,boot_flags,sizeof(bootinfo.boot_flags)); 152 strncpy(bootinfo.booted_kernel,name,sizeof(bootinfo.booted_kernel)); 153 bootinfo.fwhandle = fwhandle; 154 bootinfo.fwentry = fwentry; 155 156 (*(void (*)(long,long,long,long))entry)(fwhandle, 157 BOOTINFO_MAGIC, 158 (long)&bootinfo, 159 fwentry); 160 161 (void)printf("KERNEL RETURNED!\n"); 162 163fail: 164 (void)printf("Boot failed! Halting...\n"); 165 halt(); 166 return 1; 167} 168 169 170 171