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/* $OpenBSD: cmd_i386.c,v 1.15 2022/03/29 13:57:52 deraadt 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)
{
dump_diskinfo();
return 0;
}
#ifdef DEBUG
int
Xregs(void)
{
DUMP_REGS;
return 0;
}
#endif
int
Xboot(void)
{
printf("Not supported yet\n");
int dev, part, st;
struct diskinfo *dip;
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 */
dip = dklookup(dev);
st = dip->diskio(F_READ, dip, 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");
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':
case 'g':
size *= 1024;
case 'M':
case 'm':
size *= 1024;
case 'K':
case 'k':
size *= 1024;
p++;
}
/* Handle (possibly non-existent) 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;
}
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