1 /* $OpenBSD: netboot.c,v 1.7 2005/12/17 07:31:25 miod Exp $ */ 2 /* $NetBSD: netboot.c,v 1.1 1996/09/18 20:03:12 cgd Exp $ */ 3 4 /* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Ralph Campbell. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)boot.c 8.1 (Berkeley) 6/10/93 36 */ 37 38 #include <lib/libkern/libkern.h> 39 #include <lib/libsa/stand.h> 40 41 #include <sys/param.h> 42 #include <sys/exec.h> 43 #include <sys/exec_ecoff.h> 44 45 #include <machine/rpb.h> 46 #include <machine/prom.h> 47 48 #define _KERNEL 49 #include "include/pte.h" 50 51 int loadfile(char *, u_int64_t *); 52 53 char boot_file[128]; 54 char boot_flags[128]; 55 56 extern char bootprog_name[], bootprog_rev[]; 57 58 vaddr_t ffp_save, ptbr_save; 59 60 int debug; 61 62 void 63 main() 64 { 65 u_int64_t entry; 66 67 /* Init prom callback vector. */ 68 init_prom_calls(); 69 70 /* print a banner */ 71 printf("%s %s\n", bootprog_name, bootprog_rev); 72 73 /* switch to OSF pal code. */ 74 OSFpal(); 75 76 prom_getenv(PROM_E_BOOTED_FILE, boot_file, sizeof(boot_file)); 77 prom_getenv(PROM_E_BOOTED_OSFLAGS, boot_flags, sizeof(boot_flags)); 78 79 if (boot_file[0] == '\0') 80 bcopy("bsd", boot_file, sizeof "bsd"); 81 82 (void)printf("Boot: %s %s\n", boot_file, boot_flags); 83 84 if (!loadfile(boot_file, &entry)) { 85 (void)printf("Entering kernel at 0x%lx...\n", entry); 86 (*(void (*)())entry)(ffp_save, ptbr_save, 0); 87 } 88 89 (void)printf("Boot failed! Halting...\n"); 90 halt(); 91 } 92