xref: /freebsd/share/examples/bhyve/vmrun.sh (revision 74d9553e43cfafc29448d0bb836916aa21dea0de)
1#!/bin/sh
2#
3# Copyright (c) 2013 NetApp, Inc.
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# $FreeBSD$
28#
29
30LOADER=/usr/sbin/bhyveload
31BHYVECTL=/usr/sbin/bhyvectl
32FBSDRUN=/usr/sbin/bhyve
33
34DEFAULT_MEMSIZE=512M
35DEFAULT_CPUS=2
36DEFAULT_TAPDEV=tap0
37DEFAULT_CONSOLE=stdio
38
39DEFAULT_VIRTIO_DISK="./diskdev"
40DEFAULT_ISOFILE="./release.iso"
41
42errmsg() {
43	echo "*** $1"
44}
45
46usage() {
47	local msg=$1
48
49	echo "Usage: vmrun.sh [-ahi] [-c <CPUs>] [-C <console>] [-d <disk file>]"
50	echo "                [-e <name=value>] [-g <gdbport> ] [-H <directory>]"
51	echo "                [-I <location of installation iso>] [-l <loader>]"
52	echo "                [-m <memsize>] [-t <tapdev>] <vmname>"
53	echo ""
54	echo "       -h: display this help message"
55	echo "       -a: force memory mapped local APIC access"
56	echo "       -c: number of virtual cpus (default is ${DEFAULT_CPUS})"
57	echo "       -C: console device (default is ${DEFAULT_CONSOLE})"
58	echo "       -d: virtio diskdev file (default is ${DEFAULT_VIRTIO_DISK})"
59	echo "       -e: set FreeBSD loader environment variable"
60	echo "       -g: listen for connection from kgdb at <gdbport>"
61	echo "       -H: host filesystem to export to the loader"
62	echo "       -i: force boot of the Installation CDROM image"
63	echo "       -I: Installation CDROM image location (default is ${DEFAULT_ISOFILE})"
64	echo "       -l: the OS loader to use (default is /boot/userboot.so)"
65	echo "       -m: memory size (default is ${DEFAULT_MEMSIZE})"
66	echo "       -p: pass-through a host PCI device at bus/slot/func (e.g. 10/0/0)"
67	echo "       -t: tap device for virtio-net (default is $DEFAULT_TAPDEV)"
68	echo ""
69	[ -n "$msg" ] && errmsg "$msg"
70	exit 1
71}
72
73if [ `id -u` -ne 0 ]; then
74	errmsg "This script must be executed with superuser privileges"
75	exit 1
76fi
77
78kldstat -n vmm > /dev/null 2>&1
79if [ $? -ne 0 ]; then
80	errmsg "vmm.ko is not loaded"
81	exit 1
82fi
83
84force_install=0
85isofile=${DEFAULT_ISOFILE}
86memsize=${DEFAULT_MEMSIZE}
87console=${DEFAULT_CONSOLE}
88cpus=${DEFAULT_CPUS}
89tap_total=0
90disk_total=0
91gdbport=0
92loader_opt=""
93bhyverun_opt="-H -A -P"
94pass_total=0
95
96while getopts ac:C:d:e:g:hH:iI:l:m:p:t: c ; do
97	case $c in
98	a)
99		bhyverun_opt="${bhyverun_opt} -a"
100		;;
101	c)
102		cpus=${OPTARG}
103		;;
104	C)
105		console=${OPTARG}
106		;;
107	d)
108		disk_dev=${OPTARG%%,*}
109		disk_opts=${OPTARG#${disk_dev}}
110		eval "disk_dev${disk_total}=\"${disk_dev}\""
111		eval "disk_opts${disk_total}=\"${disk_opts}\""
112		disk_total=$(($disk_total + 1))
113		;;
114	e)
115		loader_opt="${loader_opt} -e ${OPTARG}"
116		;;
117	g)
118		gdbport=${OPTARG}
119		;;
120	H)
121		host_base=`realpath ${OPTARG}`
122		;;
123	i)
124		force_install=1
125		;;
126	I)
127		isofile=${OPTARG}
128		;;
129	l)
130		loader_opt="${loader_opt} -l ${OPTARG}"
131		;;
132	m)
133		memsize=${OPTARG}
134		;;
135	p)
136		eval "pass_dev${pass_total}=\"${OPTARG}\""
137		pass_total=$(($pass_total + 1))
138		;;
139	t)
140		eval "tap_dev${tap_total}=\"${OPTARG}\""
141		tap_total=$(($tap_total + 1))
142		;;
143	*)
144		usage
145		;;
146	esac
147done
148
149if [ $tap_total -eq 0 ] ; then
150    tap_total=1
151    tap_dev0="${DEFAULT_TAPDEV}"
152fi
153if [ $disk_total -eq 0 ] ; then
154    disk_total=1
155    disk_dev0="${DEFAULT_VIRTIO_DISK}"
156
157fi
158
159shift $((${OPTIND} - 1))
160
161if [ $# -ne 1 ]; then
162	usage "virtual machine name not specified"
163fi
164
165vmname="$1"
166if [ -n "${host_base}" ]; then
167	loader_opt="${loader_opt} -h ${host_base}"
168fi
169
170# If PCI passthru devices are configured then guest memory must be wired
171if [ ${pass_total} -gt 0 ]; then
172	loader_opt="${loader_opt} -S"
173	bhyverun_opt="${bhyverun_opt} -S"
174fi
175
176make_and_check_diskdev()
177{
178    local virtio_diskdev="$1"
179    # Create the virtio diskdev file if needed
180    if [ ! -e ${virtio_diskdev} ]; then
181	    echo "virtio disk device file \"${virtio_diskdev}\" does not exist."
182	    echo "Creating it ..."
183	    truncate -s 8G ${virtio_diskdev} > /dev/null
184    fi
185
186    if [ ! -r ${virtio_diskdev} ]; then
187	    echo "virtio disk device file \"${virtio_diskdev}\" is not readable"
188	    exit 1
189    fi
190
191    if [ ! -w ${virtio_diskdev} ]; then
192	    echo "virtio disk device file \"${virtio_diskdev}\" is not writable"
193	    exit 1
194    fi
195}
196
197echo "Launching virtual machine \"$vmname\" ..."
198
199first_diskdev="$disk_dev0"
200
201${BHYVECTL} --vm=${vmname} --destroy > /dev/null 2>&1
202
203while [ 1 ]; do
204
205	file -s ${first_diskdev} | grep "boot sector" > /dev/null
206	rc=$?
207	if [ $rc -ne 0 ]; then
208		file -s ${first_diskdev} | grep ": Unix Fast File sys" > /dev/null
209		rc=$?
210	fi
211	if [ $rc -ne 0 ]; then
212		need_install=1
213	else
214		need_install=0
215	fi
216
217	if [ $force_install -eq 1 -o $need_install -eq 1 ]; then
218		if [ ! -r ${isofile} ]; then
219			echo -n "Installation CDROM image \"${isofile}\" "
220			echo    "is not readable"
221			exit 1
222		fi
223		BOOTDISKS="-d ${isofile}"
224		installer_opt="-s 31:0,ahci-cd,${isofile}"
225	else
226		BOOTDISKS=""
227		i=0
228		while [ $i -lt $disk_total ] ; do
229			eval "disk=\$disk_dev${i}"
230			if [ -r ${disk} ] ; then
231				BOOTDISKS="$BOOTDISKS -d ${disk} "
232			fi
233			i=$(($i + 1))
234		done
235		installer_opt=""
236	fi
237
238	${LOADER} -c ${console} -m ${memsize} ${BOOTDISKS} ${loader_opt} \
239		${vmname}
240	bhyve_exit=$?
241	if [ $bhyve_exit -ne 0 ]; then
242		break
243	fi
244
245	#
246	# Build up args for additional tap and disk devices now.
247	#
248	nextslot=2  # slot 0 is hostbridge, slot 1 is lpc
249	devargs=""  # accumulate disk/tap args here
250	i=0
251	while [ $i -lt $tap_total ] ; do
252	    eval "tapname=\$tap_dev${i}"
253	    devargs="$devargs -s $nextslot:0,virtio-net,${tapname} "
254	    nextslot=$(($nextslot + 1))
255	    i=$(($i + 1))
256	done
257
258	i=0
259	while [ $i -lt $disk_total ] ; do
260	    eval "disk=\$disk_dev${i}"
261	    eval "opts=\$disk_opts${i}"
262	    make_and_check_diskdev "${disk}"
263	    devargs="$devargs -s $nextslot:0,virtio-blk,${disk}${opts} "
264	    nextslot=$(($nextslot + 1))
265	    i=$(($i + 1))
266	done
267
268	i=0
269	while [ $i -lt $pass_total ] ; do
270	    eval "pass=\$pass_dev${i}"
271	    devargs="$devargs -s $nextslot:0,passthru,${pass} "
272	    nextslot=$(($nextslot + 1))
273	    i=$(($i + 1))
274        done
275
276	${FBSDRUN} -c ${cpus} -m ${memsize} ${bhyverun_opt}		\
277		-g ${gdbport}						\
278		-s 0:0,hostbridge					\
279		-s 1:0,lpc						\
280		${devargs}						\
281		-l com1,${console}					\
282		${installer_opt}					\
283		${vmname}
284
285	bhyve_exit=$?
286	# bhyve returns the following status codes:
287	#  0 - VM has been reset
288	#  1 - VM has been powered off
289	#  2 - VM has been halted
290	#  3 - VM generated a triple fault
291	#  all other non-zero status codes are errors
292	#
293	if [ $bhyve_exit -ne 0 ]; then
294		break
295	fi
296done
297
298
299case $bhyve_exit in
300	0|1|2)
301		# Cleanup /dev/vmm entry when bhyve did not exit
302		# due to an error.
303		${BHYVECTL} --vm=${vmname} --destroy > /dev/null 2>&1
304		;;
305esac
306
307exit $bhyve_exit
308