HardenedBSD/share/examples/bhyve/vmrun.sh
Craig Rodrigues a67d73f0ed Propagate the error status of /usr/sbin/bhyve out of the vmrun.sh script.
Clean up the /dev/vmm entry for this VM when vmrun.sh exits.

Reviewed by: neel
Phabric:     D767
2014-09-13 05:08:35 +00:00

266 lines
6.5 KiB
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Executable File

#!/bin/sh
#
# Copyright (c) 2013 NetApp, Inc.
# 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 AND CONTRIBUTORS ``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 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.
#
# $FreeBSD$
#
LOADER=/usr/sbin/bhyveload
BHYVECTL=/usr/sbin/bhyvectl
FBSDRUN=/usr/sbin/bhyve
DEFAULT_MEMSIZE=512M
DEFAULT_CPUS=2
DEFAULT_TAPDEV=tap0
DEFAULT_CONSOLE=stdio
DEFAULT_VIRTIO_DISK="./diskdev"
DEFAULT_ISOFILE="./release.iso"
usage() {
echo "Usage: vmrun.sh [-ahi] [-c <CPUs>] [-C <console>] [-d <disk file>]"
echo " [-e <name=value>] [-g <gdbport> ] [-H <directory>]"
echo " [-I <location of installation iso>] [-m <memsize>]"
echo " [-t <tapdev>] <vmname>"
echo ""
echo " -h: display this help message"
echo " -a: force memory mapped local APIC access"
echo " -c: number of virtual cpus (default is ${DEFAULT_CPUS})"
echo " -C: console device (default is ${DEFAULT_CONSOLE})"
echo " -d: virtio diskdev file (default is ${DEFAULT_VIRTIO_DISK})"
echo " -e: set FreeBSD loader environment variable"
echo " -g: listen for connection from kgdb at <gdbport>"
echo " -H: host filesystem to export to the loader"
echo " -i: force boot of the Installation CDROM image"
echo " -I: Installation CDROM image location (default is ${DEFAULT_ISOFILE})"
echo " -m: memory size (default is ${DEFAULT_MEMSIZE})"
echo " -t: tap device for virtio-net (default is $DEFAULT_TAPDEV)"
echo ""
echo " This script needs to be executed with superuser privileges"
echo ""
exit 1
}
if [ `id -u` -ne 0 ]; then
usage
fi
kldstat -n vmm > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "vmm.ko is not loaded!"
exit 1
fi
force_install=0
isofile=${DEFAULT_ISOFILE}
memsize=${DEFAULT_MEMSIZE}
console=${DEFAULT_CONSOLE}
cpus=${DEFAULT_CPUS}
tap_total=0
disk_total=0
apic_opt=""
gdbport=0
loader_opt=""
while getopts ac:C:d:e:g:hH:iI:m:t: c ; do
case $c in
a)
apic_opt="-a"
;;
c)
cpus=${OPTARG}
;;
C)
console=${OPTARG}
;;
d)
eval "disk_dev${disk_total}=\"${OPTARG}\""
disk_total=$(($disk_total + 1))
;;
e)
loader_opt="${loader_opt} -e ${OPTARG}"
;;
g)
gdbport=${OPTARG}
;;
H)
host_base=`realpath ${OPTARG}`
;;
i)
force_install=1
;;
I)
isofile=${OPTARG}
;;
m)
memsize=${OPTARG}
;;
t)
eval "tap_dev${tap_total}=\"${OPTARG}\""
tap_total=$(($tap_total + 1))
;;
*)
usage
;;
esac
done
if [ $tap_total -eq 0 ] ; then
tap_total=1
tap_dev0="${DEFAULT_TAPDEV}"
fi
if [ $disk_total -eq 0 ] ; then
disk_total=1
disk_dev0="${DEFAULT_VIRTIO_DISK}"
fi
shift $((${OPTIND} - 1))
if [ $# -ne 1 ]; then
usage
fi
vmname="$1"
if [ -n "${host_base}" ]; then
loader_opt="${loader_opt} -h ${host_base}"
fi
make_and_check_diskdev()
{
local virtio_diskdev="$1"
# Create the virtio diskdev file if needed
if [ ! -f ${virtio_diskdev} ]; then
echo "virtio disk device file \"${virtio_diskdev}\" does not exist."
echo "Creating it ..."
truncate -s 8G ${virtio_diskdev} > /dev/null
fi
if [ ! -r ${virtio_diskdev} ]; then
echo "virtio disk device file \"${virtio_diskdev}\" is not readable"
exit 1
fi
if [ ! -w ${virtio_diskdev} ]; then
echo "virtio disk device file \"${virtio_diskdev}\" is not writable"
exit 1
fi
}
echo "Launching virtual machine \"$vmname\" ..."
virtio_diskdev="$disk_dev0"
${BHYVECTL} --vm=${vmname} --destroy > /dev/null 2>&1
while [ 1 ]; do
file -s ${virtio_diskdev} | grep "boot sector" > /dev/null
rc=$?
if [ $rc -ne 0 ]; then
file -s ${virtio_diskdev} | grep ": Unix Fast File sys" > /dev/null
rc=$?
fi
if [ $rc -ne 0 ]; then
need_install=1
else
need_install=0
fi
if [ $force_install -eq 1 -o $need_install -eq 1 ]; then
if [ ! -r ${isofile} ]; then
echo -n "Installation CDROM image \"${isofile}\" "
echo "is not readable"
exit 1
fi
BOOTDISK=${isofile}
installer_opt="-s 31:0,ahci-cd,${BOOTDISK}"
else
BOOTDISK=${virtio_diskdev}
installer_opt=""
fi
${LOADER} -c ${console} -m ${memsize} -d ${BOOTDISK} ${loader_opt} \
${vmname}
bhyve_exit=$?
if [ $bhyve_exit -ne 0 ]; then
break
fi
#
# Build up args for additional tap and disk devices now.
#
nextslot=2 # slot 0 is hostbridge, slot 1 is lpc
devargs="" # accumulate disk/tap args here
i=0
while [ $i -lt $tap_total ] ; do
eval "tapname=\$tap_dev${i}"
devargs="$devargs -s $nextslot:0,virtio-net,${tapname} "
nextslot=$(($nextslot + 1))
i=$(($i + 1))
done
i=0
while [ $i -lt $disk_total ] ; do
eval "disk=\$disk_dev${i}"
make_and_check_diskdev "${disk}"
devargs="$devargs -s $nextslot:0,virtio-blk,${disk} "
nextslot=$(($nextslot + 1))
i=$(($i + 1))
done
${FBSDRUN} -c ${cpus} -m ${memsize} ${apic_opt} -A -H -P \
-g ${gdbport} \
-s 0:0,hostbridge \
-s 1:0,lpc \
${devargs} \
-l com1,${console} \
${installer_opt} \
${vmname}
bhyve_exit=$?
# bhyve returns the following status codes:
# 0 - VM has been reset
# 1 - VM has been powered off
# 2 - VM has been halted
# 3 - VM generated a triple fault
# all other non-zero status codes are errors
#
if [ $bhyve_exit -ne 0 ]; then
break
fi
done
case $bhyve_exit in
0|1|2)
# Cleanup /dev/vmm entry when bhyve did not exit
# due to an error.
${BHYVECTL} --vm=${vmname} --destroy > /dev/null 2>&1
;;
esac
exit $bhyve_exit