1 /* $NetBSD: boot.c,v 1.26 2001/07/22 15:17:31 wiz 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. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)boot.c 8.1 (Berkeley) 6/10/93 39 */ 40 41 #include <lib/libsa/stand.h> 42 #include <lib/libkern/libkern.h> 43 #include <lib/libsa/loadfile.h> 44 45 #include <sys/param.h> 46 #include <sys/exec.h> 47 #include <sys/exec_ecoff.h> 48 49 #include <machine/autoconf.h> 50 #include <machine/prom.h> 51 #include <machine/rpb.h> 52 53 #include <machine/pte.h> 54 55 #include "common.h" 56 57 #if !defined(UNIFIED_BOOTBLOCK) && !defined(SECONDARY_BOOTBLOCK) 58 #error not UNIFIED_BOOTBLOCK and not SECONDARY_BOOTBLOCK 59 #endif 60 61 char boot_file[128]; 62 char boot_flags[128]; 63 64 struct bootinfo_v1 bootinfo_v1; 65 66 paddr_t ffp_save, ptbr_save; 67 68 int debug; 69 70 char *kernelnames[] = { 71 "netbsd", "netbsd.gz", 72 "netbsd.bak", "netbsd.bak.gz", 73 "netbsd.old", "netbsd.old.gz", 74 "onetbsd", "onetbsd.gz", 75 "netbsd.alpha", "netbsd.alpha.gz", 76 NULL 77 }; 78 79 void 80 #if defined(UNIFIED_BOOTBLOCK) 81 main(void) 82 #else /* defined(SECONDARY_BOOTBLOCK) */ 83 main(long fd) 84 #endif 85 { 86 char *name, **namep; 87 u_long marks[MARK_MAX]; 88 u_int64_t entry; 89 int win; 90 91 /* Init prom callback vector. */ 92 init_prom_calls(); 93 94 /* print a banner */ 95 printf("\n"); 96 printf("NetBSD/alpha " NETBSD_VERS " " BOOT_TYPE_NAME " Bootstrap, Revision %s\n", 97 bootprog_rev); 98 printf("(%s, %s)\n", bootprog_maker, bootprog_date); 99 printf("\n"); 100 101 /* set up the booted device descriptor */ 102 #if defined(UNIFIED_BOOTBLOCK) 103 if (!booted_dev_open()) { 104 printf("Boot device (%s) open failed.\n", 105 booted_dev_name[0] ? booted_dev_name : "unknown"); 106 goto fail; 107 } 108 #else /* defined(SECONDARY_BOOTBLOCK) */ 109 booted_dev_setfd(fd); 110 #endif 111 112 /* switch to OSF pal code. */ 113 OSFpal(); 114 115 printf("\n"); 116 117 prom_getenv(PROM_E_BOOTED_FILE, boot_file, sizeof(boot_file)); 118 prom_getenv(PROM_E_BOOTED_OSFLAGS, boot_flags, sizeof(boot_flags)); 119 120 if (boot_file[0] != 0) 121 (void)printf("Boot file: %s\n", boot_file); 122 (void)printf("Boot flags: %s\n", boot_flags); 123 124 if (strchr(boot_flags, 'i') || strchr(boot_flags, 'I')) { 125 printf("Boot file: "); 126 gets(boot_file); 127 } 128 129 memset(marks, 0, sizeof marks); 130 if (boot_file[0] != '\0') 131 win = loadfile(name = boot_file, marks, LOAD_KERNEL) == 0; 132 else 133 for (namep = kernelnames, win = 0; *namep != NULL && !win; 134 namep++) 135 win = loadfile(name = *namep, marks, LOAD_KERNEL) == 0; 136 137 entry = marks[MARK_ENTRY]; 138 booted_dev_close(); 139 printf("\n"); 140 if (!win) 141 goto fail; 142 143 /* 144 * Fill in the bootinfo for the kernel. 145 */ 146 memset(&bootinfo_v1, 0, sizeof(bootinfo_v1)); 147 bootinfo_v1.ssym = marks[MARK_SYM]; 148 bootinfo_v1.esym = marks[MARK_END]; 149 memcpy(bootinfo_v1.booted_kernel, name, 150 sizeof(bootinfo_v1.booted_kernel)); 151 memcpy(bootinfo_v1.boot_flags, boot_flags, 152 sizeof(bootinfo_v1.boot_flags)); 153 bootinfo_v1.hwrpb = (void *)HWRPB_ADDR; 154 bootinfo_v1.hwrpbsize = ((struct rpb *)HWRPB_ADDR)->rpb_size; 155 bootinfo_v1.cngetc = NULL; 156 bootinfo_v1.cnputc = NULL; 157 bootinfo_v1.cnpollc = NULL; 158 159 (void)printf("Entering %s at 0x%lx...\n", name, entry); 160 alpha_pal_imb(); 161 (*(void (*)(u_int64_t, u_int64_t, u_int64_t, void *, u_int64_t, 162 u_int64_t))entry)(ffp_save, ptbr_save, BOOTINFO_MAGIC, 163 &bootinfo_v1, 1, 0); 164 165 (void)printf("KERNEL RETURNED!\n"); 166 167 fail: 168 (void)printf("Boot failed! Halting...\n"); 169 halt(); 170 } 171