1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
|
/* $OpenBSD: cmd_i386.c,v 1.5 2012/10/30 14:06:29 jsing Exp $ */
/*
* Copyright (c) 1997-1999 Michael Shalayeff
* Copyright (c) 1997 Tobias Weingartner
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/param.h>
#include <sys/reboot.h>
#include <machine/biosvar.h>
#include <sys/disklabel.h>
#include "disk.h"
#include "biosdev.h"
#include "libsa.h"
#include <cmd.h>
extern const char version[];
int Xboot(void);
int Xcomaddr(void);
int Xdiskinfo(void);
int Xmemory(void);
int Xregs(void);
/* From gidt.S */
int bootbuf(void *, int);
const struct cmd_table cmd_machine[] = {
{ "boot", CMDT_CMD, Xboot },
{ "comaddr", CMDT_CMD, Xcomaddr },
{ "diskinfo", CMDT_CMD, Xdiskinfo },
{ "memory", CMDT_CMD, Xmemory },
#ifdef DEBUG
{ "regs", CMDT_CMD, Xregs },
#endif
{ NULL, 0 }
};
int
Xdiskinfo(void)
{
#ifndef _TEST
dump_diskinfo();
#endif
return 0;
}
#ifdef DEBUG
int
Xregs(void)
{
DUMP_REGS;
return 0;
}
#endif
int
Xboot(void)
{
#ifndef _TEST
int dev, part, st;
bios_diskinfo_t *bd = NULL;
char buf[DEV_BSIZE], *dest = (void *)BOOTBIOS_ADDR;
if (cmd.argc != 2) {
printf("machine boot {fd,hd}<0123>[abcd]\n");
printf("Where [0123] is the disk number,"
" and [abcd] is the partition.\n");
return 0;
}
/* Check arg */
if (cmd.argv[1][0] != 'f' && cmd.argv[1][0] != 'h')
goto bad;
if (cmd.argv[1][1] != 'd')
goto bad;
if (cmd.argv[1][2] < '0' || cmd.argv[1][2] > '3')
goto bad;
if ((cmd.argv[1][3] < 'a' || cmd.argv[1][3] > 'd') &&
cmd.argv[1][3] != '\0')
goto bad;
printf("Booting from %s ", cmd.argv[1]);
dev = (cmd.argv[1][0] == 'h')?0x80:0;
dev += (cmd.argv[1][2] - '0');
part = (cmd.argv[1][3] - 'a');
if (part > 0)
printf("[%x,%d]\n", dev, part);
else
printf("[%x]\n", dev);
/* Read boot sector from device */
bd = bios_dklookup(dev);
st = biosd_io(F_READ, bd, 0, 1, buf);
if (st)
goto bad;
/* Frob boot flag in buffer from HD */
if ((dev & 0x80) && (part > 0)){
int i, j;
for (i = 0, j = DOSPARTOFF; i < 4; i++, j += 16)
if (part == i)
buf[j] |= 0x80;
else
buf[j] &= ~0x80;
}
/* Load %dl, ljmp */
bcopy(buf, dest, DEV_BSIZE);
bootbuf(dest, dev);
bad:
printf("Invalid device!\n");
#endif
return 0;
}
int
Xmemory(void)
{
if (cmd.argc >= 2) {
int i;
/* parse the memory specs */
for (i = 1; i < cmd.argc; i++) {
char *p;
long long addr, size;
p = cmd.argv[i];
size = strtoll(p + 1, &p, 0);
/* Size the size */
switch (*p) {
case 'G':
size *= 1024;
case 'M':
size *= 1024;
case 'K':
size *= 1024;
p++;
}
/* Handle (possibly non-existant) address part */
switch (*p) {
case '@':
addr = strtoll(p + 1, NULL, 0);
break;
/* Adjust address if we don't need it */
default:
if (cmd.argv[i][0] == '=')
addr = -1;
else
addr = 0;
}
if (addr == 0 || size == 0) {
printf("bad language\n");
return 0;
} else {
switch (cmd.argv[i][0]) {
case '-':
mem_delete(addr, addr + size);
break;
case '+':
mem_add(addr, addr + size);
break;
case '=':
mem_limit(size);
break;
default :
printf("bad OP\n");
return 0;
}
}
}
}
dump_biosmem(NULL);
return 0;
}
int
Xcomaddr(void)
{
extern int com_addr;
if (cmd.argc >= 2)
com_addr = (int)strtol(cmd.argv[1], NULL, 0);
return 0;
}
|
