1 /* $NetBSD: boot.c,v 1.1 2014/02/24 07:23:43 skrll Exp $ */
2
3 /*-
4 * Copyright (c) 1982, 1986, 1990, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)boot.c 8.1 (Berkeley) 6/10/93
32 */
33
34 /*
35 * Copyright (c) 1998-2004 Michael Shalayeff
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 *
47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
48 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
49 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
50 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
51 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
52 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
53 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
55 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
56 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
57 * THE POSSIBILITY OF SUCH DAMAGE.
58 *
59 */
60
61 #include <sys/param.h>
62 #include <sys/reboot.h>
63 #include <sys/boot_flag.h>
64
65 #include <arch/hppa/stand/common/libsa.h>
66 #include <lib/libsa/loadfile.h>
67
68 #include <machine/pdc.h>
69 #include <machine/vmparam.h>
70
71 #include <arch/hppa/stand/common/dev_hppa.h>
72
73 #include "bootinfo.h"
74
75 /*
76 * Boot program... bits in `howto' determine whether boot stops to
77 * ask for system name. Boot device is derived from ROM provided
78 * information.
79 */
80
81 #define MAXLEN 100
82
83 char line[MAXLEN];
84 char devname_buffer[16];
85
86 extern u_int opendev;
87 extern char *lowram;
88 extern int noconsole;
89
90 /*
91 * XXX UFS accepts a /, NFS doesn't.
92 */
93 char *name;
94 char *names[] = {
95 "netbsd", "netbsd.gz",
96 "netbsd.bak", "netbsd.bak.gz",
97 "netbsd.old", "netbsd.old.gz",
98 "onetbsd", "onetbsd.gz",
99 NULL
100 };
101 #define NUMNAMES (sizeof(names) / sizeof(char *))
102
103 void boot(dev_t boot_dev);
104 int main(void);
105 void getbootdev(int *);
106 void exec_hppa(char *, u_long, int);
107
108 int tgets(char *);
109 void _rtt(void);
110
111 typedef void (*startfuncp)(int, int, int, int, int, void *)
112 __attribute__ ((noreturn));
113
114 int howto;
115
116 void
boot(dev_t boot_dev)117 boot(dev_t boot_dev)
118 {
119 machdep();
120 #ifdef DEBUGBUG
121 debug = 1;
122 #endif
123 devboot(boot_dev, devname_buffer);
124 main();
125 }
126
127 int
main(void)128 main(void)
129 {
130 int currname = 0;
131 char *filename, filename_buffer[MAXLEN];
132
133 printf("\n");
134 printf(">> %s, Revision %s\n", bootprog_name, bootprog_rev);
135 printf(">> Enter \"reset\" to reset system.\n");
136
137 for (;;) {
138 size_t size;
139
140 /* reset bootinfo structure */
141 bi_init();
142
143 name = names[currname++];
144 if (currname == NUMNAMES)
145 currname = 0;
146
147 if (!noconsole) {
148 howto = 0;
149 getbootdev(&howto);
150 } else
151 printf(": %s\n", name);
152 if (strchr(name, ':') != 0) {
153 filename = name;
154 } else {
155 strcpy(filename_buffer, devname_buffer);
156 strcat(filename_buffer, ":");
157 strcat(filename_buffer, name);
158 filename = filename_buffer;
159 }
160
161 size = sizeof(struct btinfo_common) + strlen(name) + 1;
162 /* Impose limit (somewhat arbitrary) */
163 if (size < BOOTINFO_MAXSIZE / 2) {
164 union {
165 struct btinfo_kernelfile bi_file;
166 char x[size];
167 } U;
168 strcpy(U.bi_file.name, name);
169 BI_ADD(&U.bi_file, BTINFO_KERNELFILE, size);
170 }
171
172 exec_hppa(filename, 0, howto);
173 printf("boot: %s\n", strerror(errno));
174 }
175 }
176
177 void
getbootdev(int * boot_howto)178 getbootdev(int *boot_howto)
179 {
180 char c, *ptr = line;
181 int bdev, badapt, bctlr, bunit, bpart;
182
183 bdev = B_TYPE(bootdev);
184 badapt = B_ADAPTOR(bootdev);
185 bctlr = B_CONTROLLER(bootdev);
186 bunit = B_UNIT(bootdev);
187 bpart = B_PARTITION(bootdev);
188
189 printf("Boot: [[[%s%d%c:]%s][-a][-c][-d][-s][-v][-q]] :- ",
190 devsw[bdev].dv_name, badapt << 8 | bctlr << 4 | bunit,
191 'a' + bpart, name);
192
193 if (tgets(line)) {
194 if (strcmp(line, "reset") == 0) {
195 _rtt();
196 printf("panic: can't reboot\n");
197 return;
198 }
199 while ((c = *ptr) != '\0') {
200 while (c == ' ')
201 c = *++ptr;
202 if (!c)
203 return;
204 if (c == '-')
205 while ((c = *++ptr) && c != ' ')
206 BOOT_FLAG(c, *boot_howto);
207 else {
208 name = ptr;
209 while ((c = *++ptr) && c != ' ');
210 if (c)
211 *ptr++ = 0;
212 }
213 }
214 } else
215 printf("\n");
216 }
217
218 #define round_to_size(x) \
219 (((x) + sizeof(u_long) - 1) & ~(sizeof(u_long) - 1))
220
221 void
exec_hppa(char * file,u_long loadaddr,int boot_howto)222 exec_hppa(char *file, u_long loadaddr, int boot_howto)
223 {
224 #ifdef EXEC_DEBUG
225 extern int debug;
226 int i;
227 #endif
228 struct btinfo_symtab bi_syms;
229 u_long marks[MARK_MAX];
230 int fd;
231
232 marks[MARK_START] = loadaddr;
233 #ifdef EXEC_DEBUG
234 printf("file=%s loadaddr=%lx howto=%x\n",
235 file, loadaddr, boot_howto);
236 #endif
237 if ((fd = loadfile(file, marks, LOAD_KERNEL)) == -1)
238 return;
239
240 marks[MARK_END] = round_to_size(marks[MARK_END] - loadaddr);
241 printf("Start @ 0x%lx [%ld=0x%lx-0x%lx]...\n",
242 marks[MARK_ENTRY], marks[MARK_NSYM],
243 marks[MARK_SYM], marks[MARK_END]);
244
245 #ifdef EXEC_DEBUG
246 if (debug) {
247 printf("ep=0x%lx [", marks[MARK_ENTRY]);
248 for (i = 0; i < 10240; i++) {
249 if (!(i % 8)) {
250 printf("\b\n%p:", &((u_int *)marks[MARK_ENTRY])[i]);
251 if (getchar() != ' ')
252 break;
253 }
254 printf("%x,", ((int *)marks[MARK_ENTRY])[i]);
255 }
256 printf("\b\b ]\n");
257 }
258 #endif
259
260 bi_syms.nsym = marks[MARK_NSYM];
261 bi_syms.ssym = marks[MARK_SYM];
262 bi_syms.esym = marks[MARK_END];
263 BI_ADD(&bi_syms, BTINFO_SYMTAB, sizeof(bi_syms));
264
265 fcacheall();
266
267 __asm("mtctl %r0, %cr17");
268 __asm("mtctl %r0, %cr17");
269
270 /* stack and the gung is ok at this point, so, no need for asm setup */
271 (*(startfuncp)(marks[MARK_ENTRY])) ((int)pdc, boot_howto, bootdev,
272 marks[MARK_END], BOOTARG_APIVER, &bootinfo);
273 /* not reached */
274 }
275