1 /* $NetBSD: boot.c,v 1.30 2009/02/03 12:49:00 tsutsui 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 <machine/autoconf.h> 46 #include <machine/prom.h> 47 #include <machine/rpb.h> 48 49 #include <machine/pte.h> 50 51 #include "common.h" 52 53 #if !defined(UNIFIED_BOOTBLOCK) && !defined(SECONDARY_BOOTBLOCK) 54 #error not UNIFIED_BOOTBLOCK and not SECONDARY_BOOTBLOCK 55 #endif 56 57 char boot_file[128]; 58 char boot_flags[128]; 59 60 struct bootinfo_v1 bootinfo_v1; 61 62 paddr_t ffp_save, ptbr_save; 63 64 int debug; 65 66 char *kernelnames[] = { 67 "netbsd", "netbsd.gz", 68 "netbsd.bak", "netbsd.bak.gz", 69 "netbsd.old", "netbsd.old.gz", 70 "onetbsd", "onetbsd.gz", 71 "netbsd.alpha", "netbsd.alpha.gz", 72 NULL 73 }; 74 75 void 76 #if defined(UNIFIED_BOOTBLOCK) 77 main(void) 78 #else /* defined(SECONDARY_BOOTBLOCK) */ 79 main(long fd) 80 #endif 81 { 82 char *name, **namep; 83 u_long marks[MARK_MAX]; 84 u_int64_t entry; 85 int win, loadflag; 86 87 /* Init prom callback vector. */ 88 init_prom_calls(); 89 90 /* print a banner */ 91 printf("\n"); 92 printf("NetBSD/alpha " NETBSD_VERS " " BOOT_TYPE_NAME " Bootstrap, Revision %s\n", 93 bootprog_rev); 94 printf("(%s, %s)\n", bootprog_maker, bootprog_date); 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 /* switch to OSF pal code. */ 109 OSFpal(); 110 111 printf("\n"); 112 113 prom_getenv(PROM_E_BOOTED_FILE, boot_file, sizeof(boot_file)); 114 prom_getenv(PROM_E_BOOTED_OSFLAGS, 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 gets(boot_file); 123 } 124 125 #ifdef NO_LOAD_NOTE 126 loadflag = LOAD_KERNEL & ~LOAD_NOTE; 127 #else 128 loadflag = LOAD_KERNEL; 129 #endif 130 131 memset(marks, 0, sizeof marks); 132 if (boot_file[0] != '\0') { 133 name = boot_file; 134 win = loadfile(name, marks, loadflag) == 0; 135 } else { 136 name = NULL; /* XXX gcc -Wuninitialized */ 137 for (namep = kernelnames, win = 0; *namep != NULL && !win; 138 namep++) { 139 name = *namep; 140 win = loadfile(name, marks, loadflag) == 0; 141 } 142 } 143 144 entry = marks[MARK_ENTRY]; 145 booted_dev_close(); 146 printf("\n"); 147 if (!win) 148 goto fail; 149 150 /* 151 * Fill in the bootinfo for the kernel. 152 */ 153 memset(&bootinfo_v1, 0, sizeof(bootinfo_v1)); 154 bootinfo_v1.ssym = marks[MARK_SYM]; 155 bootinfo_v1.esym = marks[MARK_END]; 156 memcpy(bootinfo_v1.booted_kernel, name, 157 sizeof(bootinfo_v1.booted_kernel)); 158 memcpy(bootinfo_v1.boot_flags, boot_flags, 159 sizeof(bootinfo_v1.boot_flags)); 160 bootinfo_v1.hwrpb = (void *)HWRPB_ADDR; 161 bootinfo_v1.hwrpbsize = ((struct rpb *)HWRPB_ADDR)->rpb_size; 162 bootinfo_v1.cngetc = NULL; 163 bootinfo_v1.cnputc = NULL; 164 bootinfo_v1.cnpollc = NULL; 165 166 (void)printf("Entering %s at 0x%lx...\n", name, entry); 167 alpha_pal_imb(); 168 (*(void (*)(u_int64_t, u_int64_t, u_int64_t, void *, u_int64_t, 169 u_int64_t))entry)(ffp_save, ptbr_save, BOOTINFO_MAGIC, 170 &bootinfo_v1, 1, 0); 171 172 (void)printf("KERNEL RETURNED!\n"); 173 174 fail: 175 (void)printf("Boot failed! Halting...\n"); 176 halt(); 177 } 178