vmrun.sh revision 284899
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: stable/10/share/examples/bhyve/vmrun.sh 284899 2015-06-28 01:21:55Z neel $
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>] [-m <memsize>]"
52	echo "                [-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 "       -m: memory size (default is ${DEFAULT_MEMSIZE})"
65	echo "       -p: pass-through a host PCI device at bus/slot/func (e.g. 10/0/0)"
66	echo "       -t: tap device for virtio-net (default is $DEFAULT_TAPDEV)"
67	echo ""
68	[ -n "$msg" ] && errmsg "$msg"
69	exit 1
70}
71
72if [ `id -u` -ne 0 ]; then
73	errmsg "This script must be executed with superuser privileges"
74	exit 1
75fi
76
77kldstat -n vmm > /dev/null 2>&1 
78if [ $? -ne 0 ]; then
79	errmsg "vmm.ko is not loaded"
80	exit 1
81fi
82
83force_install=0
84isofile=${DEFAULT_ISOFILE}
85memsize=${DEFAULT_MEMSIZE}
86console=${DEFAULT_CONSOLE}
87cpus=${DEFAULT_CPUS}
88tap_total=0
89disk_total=0
90apic_opt=""
91gdbport=0
92loader_opt=""
93pass_total=0
94
95while getopts ac:C:d:e:g:hH:iI:m:p:t: c ; do
96	case $c in
97	a)
98		apic_opt="-a"
99		;;
100	c)
101		cpus=${OPTARG}
102		;;
103	C)
104		console=${OPTARG}
105		;;
106	d)
107		disk_dev=${OPTARG%%,*}
108		disk_opts=${OPTARG#${disk_dev}}
109		eval "disk_dev${disk_total}=\"${disk_dev}\""
110		eval "disk_opts${disk_total}=\"${disk_opts}\""
111		disk_total=$(($disk_total + 1))
112		;;
113	e)
114		loader_opt="${loader_opt} -e ${OPTARG}"
115		;;
116	g)	
117		gdbport=${OPTARG}
118		;;
119	H)
120		host_base=`realpath ${OPTARG}`
121		;;
122	i)
123		force_install=1
124		;;
125	I)
126		isofile=${OPTARG}
127		;;
128	m)
129		memsize=${OPTARG}
130		;;
131	p)
132		eval "pass_dev${pass_total}=\"${OPTARG}\""
133		pass_total=$(($pass_total + 1))
134		;;
135	t)
136		eval "tap_dev${tap_total}=\"${OPTARG}\""
137		tap_total=$(($tap_total + 1))
138		;;
139	*)
140		usage
141		;;
142	esac
143done
144
145if [ $tap_total -eq 0 ] ; then
146    tap_total=1
147    tap_dev0="${DEFAULT_TAPDEV}"
148fi
149if [ $disk_total -eq 0 ] ; then
150    disk_total=1
151    disk_dev0="${DEFAULT_VIRTIO_DISK}"
152
153fi
154
155shift $((${OPTIND} - 1))
156
157if [ $# -ne 1 ]; then
158	usage "virtual machine name not specified"
159fi
160
161vmname="$1"
162if [ -n "${host_base}" ]; then
163	loader_opt="${loader_opt} -h ${host_base}"
164fi
165
166make_and_check_diskdev()
167{
168    local virtio_diskdev="$1"
169    # Create the virtio diskdev file if needed
170    if [ ! -f ${virtio_diskdev} ]; then
171	    echo "virtio disk device file \"${virtio_diskdev}\" does not exist."
172	    echo "Creating it ..."
173	    truncate -s 8G ${virtio_diskdev} > /dev/null
174    fi
175
176    if [ ! -r ${virtio_diskdev} ]; then
177	    echo "virtio disk device file \"${virtio_diskdev}\" is not readable"
178	    exit 1
179    fi
180
181    if [ ! -w ${virtio_diskdev} ]; then
182	    echo "virtio disk device file \"${virtio_diskdev}\" is not writable"
183	    exit 1
184    fi
185}
186
187echo "Launching virtual machine \"$vmname\" ..."
188
189first_diskdev="$disk_dev0"
190
191${BHYVECTL} --vm=${vmname} --destroy > /dev/null 2>&1
192
193while [ 1 ]; do
194
195	file -s ${first_diskdev} | grep "boot sector" > /dev/null
196	rc=$?
197	if [ $rc -ne 0 ]; then
198		file -s ${first_diskdev} | grep ": Unix Fast File sys" > /dev/null
199		rc=$?
200	fi
201	if [ $rc -ne 0 ]; then
202		need_install=1
203	else
204		need_install=0
205	fi
206
207	if [ $force_install -eq 1 -o $need_install -eq 1 ]; then
208		if [ ! -r ${isofile} ]; then
209			echo -n "Installation CDROM image \"${isofile}\" "
210			echo    "is not readable"
211			exit 1
212		fi
213		BOOTDISKS="-d ${isofile}"
214		installer_opt="-s 31:0,ahci-cd,${isofile}"
215	else
216		BOOTDISKS=""
217		i=0
218		while [ $i -lt $disk_total ] ; do
219			eval "disk=\$disk_dev${i}"
220			if [ -r ${disk} ] ; then
221				BOOTDISKS="$BOOTDISKS -d ${disk} "
222			fi
223			i=$(($i + 1))
224		done
225		installer_opt=""
226	fi
227
228	${LOADER} -c ${console} -m ${memsize} ${BOOTDISKS} ${loader_opt} \
229		${vmname}
230	bhyve_exit=$?
231	if [ $bhyve_exit -ne 0 ]; then
232		break
233	fi
234
235	#
236	# Build up args for additional tap and disk devices now.
237	#
238	nextslot=2  # slot 0 is hostbridge, slot 1 is lpc
239	devargs=""  # accumulate disk/tap args here
240	i=0
241	while [ $i -lt $tap_total ] ; do
242	    eval "tapname=\$tap_dev${i}"
243	    devargs="$devargs -s $nextslot:0,virtio-net,${tapname} "
244	    nextslot=$(($nextslot + 1))
245	    i=$(($i + 1))
246	done
247
248	i=0
249	while [ $i -lt $disk_total ] ; do
250	    eval "disk=\$disk_dev${i}"
251	    eval "opts=\$disk_opts${i}"
252	    make_and_check_diskdev "${disk}"
253	    devargs="$devargs -s $nextslot:0,virtio-blk,${disk}${opts} "
254	    nextslot=$(($nextslot + 1))
255	    i=$(($i + 1))
256	done
257
258	i=0
259	while [ $i -lt $pass_total ] ; do
260	    eval "pass=\$pass_dev${i}"
261	    devargs="$devargs -s $nextslot:0,passthru,${pass} "
262	    nextslot=$(($nextslot + 1))
263	    i=$(($i + 1))
264        done
265
266	${FBSDRUN} -c ${cpus} -m ${memsize} ${apic_opt} -A -H -P	\
267		-g ${gdbport}						\
268		-s 0:0,hostbridge					\
269		-s 1:0,lpc						\
270		${devargs}						\
271		-l com1,${console}					\
272		${installer_opt}					\
273		${vmname}
274
275	bhyve_exit=$?
276	# bhyve returns the following status codes:
277	#  0 - VM has been reset
278	#  1 - VM has been powered off
279	#  2 - VM has been halted
280	#  3 - VM generated a triple fault
281	#  all other non-zero status codes are errors
282	#
283	if [ $bhyve_exit -ne 0 ]; then
284		break
285	fi
286done
287
288
289case $bhyve_exit in
290	0|1|2)
291		# Cleanup /dev/vmm entry when bhyve did not exit
292		# due to an error.
293		${BHYVECTL} --vm=${vmname} --destroy > /dev/null 2>&1
294		;;
295esac
296
297exit $bhyve_exit
298