1/* $NetBSD: inkernel.c,v 1.2 2008/04/28 20:23:34 martin Exp $ */ 2 3/*- 4 * Copyright (c) 1996, 1997 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Kazuki Sakamoto. 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <lib/libsa/stand.h> 33#include <sys/param.h> 34 35#include "boot.h" 36#include "magic.h" 37 38#define KERNENTRY (RELOC - 0x200000) 39/*#define KERNENTRY (0x800000)*/ 40/* Note that the iplcb lives in the 0x700000 range, so we need to avoid that*/ 41 42void 43init_in(u_long ladr) 44{ 45 extern char _start[], _edata[], _end[]; 46 /*char *p = (char *)(ladr + _end); for loadaddr 0x0*/ 47 char *p = (char *)(ladr + (_end - ladr)); 48 u_int i; 49 50 printf("p=%p start %p edata %p end %p ladr %lx\n", p, _start, _edata, _end, ladr); 51 52 for (i = 0; i < 4096; i++, p++) { 53 if (memcmp(p, rs6000_magic, RS6000_MAGICSIZE) == 0) { 54 kern_len = *(int *)(p + RS6000_MAGICSIZE); 55 printf("Found magic at 0x%x, kernel is size 0x%x\n", i, kern_len); 56 memmove((char *)KERNENTRY, 57 p + RS6000_MAGICSIZE + KERNLENSIZE, kern_len); 58 return; 59 } 60 } 61 printf("magic is not found.\n"); 62} 63 64int 65inopen(struct open_file *p) 66{ 67 68 if (kern_len) 69 return (0); 70 return (EINVAL); 71} 72 73int 74inclose(struct open_file *p) 75{ 76 77 return (0); 78} 79 80int 81instrategy(void *devdata, int func, daddr_t blk, size_t size, void *buf, 82 size_t *rsize) 83{ 84 85 memcpy(buf, (char *)KERNENTRY + ((long)blk * DEV_BSIZE), size); 86 *rsize = size; 87 return (0); 88} 89