NetBSD-5.0.2/sys/arch/xen/xen/xen_machdep.c
/* $NetBSD: xen_machdep.c,v 1.4 2008/05/10 16:27:57 ad Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Manuel Bouyer.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 AUTHOR 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.
*
*/
/*
*
* Copyright (c) 2004 Christian Limpach.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christian Limpach.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 AUTHOR 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: xen_machdep.c,v 1.4 2008/05/10 16:27:57 ad Exp $");
#include "opt_xen.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/boot_flag.h>
#include <sys/mount.h>
#include <sys/reboot.h>
#include <sys/timetc.h>
#include <xen/hypervisor.h>
u_int tsc_get_timecount(struct timecounter *);
uint64_t tsc_freq; /* XXX */
void
xen_parse_cmdline(int what, union xen_cmdline_parseinfo *xcp)
{
char _cmd_line[256], *cmd_line, *opt, *s;
int b, i, ipidx = 0;
uint32_t xi_ip[5];
size_t len;
len = strlcpy(_cmd_line, xen_start_info.cmd_line, sizeof(_cmd_line));
if (len > sizeof(_cmd_line)) {
printf("command line exceeded limit of 255 chars. Truncated.\n");
}
cmd_line = _cmd_line;
switch (what) {
case XEN_PARSE_BOOTDEV:
xcp->xcp_bootdev[0] = 0;
break;
case XEN_PARSE_CONSOLE:
xcp->xcp_console[0] = 0;
break;
}
while (cmd_line && *cmd_line) {
opt = cmd_line;
cmd_line = strchr(opt, ' ');
if (cmd_line)
*cmd_line = 0;
switch (what) {
case XEN_PARSE_BOOTDEV:
if (strncasecmp(opt, "bootdev=", 8) == 0) {
strncpy(xcp->xcp_bootdev, opt + 8,
sizeof(xcp->xcp_bootdev));
break;
}
if (strncasecmp(opt, "root=", 5) == 0) {
strncpy(xcp->xcp_bootdev, opt + 5,
sizeof(xcp->xcp_bootdev));
break;
}
break;
case XEN_PARSE_NETINFO:
if (xcp->xcp_netinfo.xi_root &&
strncasecmp(opt, "nfsroot=", 8) == 0)
strncpy(xcp->xcp_netinfo.xi_root, opt + 8,
MNAMELEN);
if (strncasecmp(opt, "ip=", 3) == 0) {
memset(xi_ip, 0, sizeof(xi_ip));
opt += 3;
ipidx = 0;
while (opt && *opt) {
s = opt;
opt = strchr(opt, ':');
if (opt)
*opt = 0;
switch (ipidx) {
case 0: /* ip */
case 1: /* nfs server */
case 2: /* gw */
case 3: /* mask */
case 4: /* host */
if (*s == 0)
break;
for (i = 0; i < 4; i++) {
b = strtoul(s, &s, 10);
xi_ip[ipidx] = b + 256
* xi_ip[ipidx];
if (*s != '.')
break;
s++;
}
if (i < 3)
xi_ip[ipidx] = 0;
break;
case 5: /* interface */
if (!strncmp(s, "xennet", 6))
s += 6;
else if (!strncmp(s, "eth", 3))
s += 3;
else
break;
if (xcp->xcp_netinfo.xi_ifno
== strtoul(s, NULL, 10))
memcpy(xcp->
xcp_netinfo.xi_ip,
xi_ip,
sizeof(xi_ip));
break;
}
ipidx++;
if (opt)
*opt++ = ':';
}
}
break;
case XEN_PARSE_CONSOLE:
if (strncasecmp(opt, "console=", 8) == 0)
strncpy(xcp->xcp_console, opt + 8,
sizeof(xcp->xcp_console));
break;
case XEN_PARSE_BOOTFLAGS:
if (*opt == '-') {
opt++;
while(*opt != '\0') {
BOOT_FLAG(*opt, boothowto);
opt++;
}
}
break;
}
if (cmd_line)
*cmd_line++ = ' ';
}
}
u_int
tsc_get_timecount(struct timecounter *tc)
{
panic("xen: tsc_get_timecount");
}