def boot(self, img, extra_args=[]):
args = self._args + [
"-device", "VGA", "-drive",
"file=%s,if=none,id=drive0,cache=writeback" % img, "-device",
"virtio-blk,drive=drive0,bootindex=0"
]
args += self._data_args + extra_args
logging.debug("QEMU args: %s", " ".join(args))
qemu_bin = os.environ.get("QEMU", "qemu-system-" + self.arch)
guest = QEMUMachine(binary=qemu_bin, args=args)
try:
guest.launch()
except:
logging.error("Failed to launch QEMU, command line:")
logging.error(" ".join([qemu_bin] + args))
logging.error("Log:")
logging.error(guest.get_log())
logging.error("QEMU version >= 2.10 is required")
raise
atexit.register(self.shutdown)
self._guest = guest
usernet_info = guest.qmp("human-monitor-command",
command_line="info usernet")
self.ssh_port = None
for l in usernet_info["return"].splitlines():
fields = l.split()
if "TCP[HOST_FORWARD]" in fields and "22" in fields:
self.ssh_port = l.split()[3]
if not self.ssh_port:
raise Exception("Cannot find ssh port from 'info usernet':\n%s" % \
usernet_info)
def setUp(self):
self.vm = None
self.qemu_bin = self.params.get('qemu_bin',
default=pick_default_qemu_bin())
if self.qemu_bin is None:
self.cancel("No QEMU binary defined or found in the source tree")
self.vm = QEMUMachine(self.qemu_bin)
def setUp(self):
self.jobdir = os.path.dirname(self.logdir)
self.log.info("### jobdir: %s", self.jobdir)
self.kernel = os.path.join(self.jobdir, "drminfo.kernel")
self.initrd = os.path.join(self.jobdir, "drminfo.initrd")
self.qemu_binary = self.find_qemu_binary()
self.log.info("### using qemu binary: %s", self.qemu_binary)
self.vm = QEMUMachine(self.qemu_binary)
def run_device(self, devtype, opts=None, machine='pc'):
"""
Run QEMU with `-device DEVTYPE`, return device info from `query-pci`
"""
with QEMUMachine(self.qemu_bin) as vm:
vm.set_machine(machine)
if opts:
devtype += ',' + opts
vm.add_args('-device', '%s,id=devfortest' % (devtype))
vm.add_args('-S')
vm.launch()
pcibuses = vm.command('query-pci')
alldevs = [dev for bus in pcibuses for dev in bus['devices']]
devfortest = [dev for dev in alldevs
if dev['qdev_id'] == 'devfortest']
return devfortest[0], get_pci_interfaces(vm, devtype)
def migrate_vm(self, vga, display = None):
self.log.info("### live migration: start ...")
dest_uri = 'tcp:localhost:%u' % self._get_free_port()
dest_vm = QEMUMachine(self.qemu_binary)
self.boot_gfx_vm(vga, display, dest_vm, dest_uri);
self.vm.qmp('migrate_set_speed', value = "1G")
self.vm.qmp('migrate', uri=dest_uri)
wait.wait_for(
self.migration_finished,
timeout=self.timeout,
step=0.1,
args=(self.vm,)
)
self.assertEqual(dest_vm.command('query-migrate')['status'], 'completed')
self.assertEqual(self.vm.command('query-migrate')['status'], 'completed')
self.assertEqual(dest_vm.command('query-status')['status'], 'running')
self.assertEqual(self.vm.command('query-status')['status'], 'postmigrate')
self.log.info("### live migration: OK")
# swap vm and console handles, so we can talk to the new vm ...
self.vm.shutdown()
self.vm = dest_vm
self.rconsole = self.vm.console_socket.makefile('r')
self.wconsole = self.vm.console_socket.makefile('w')
def _new_vm(self, *args):
vm = QEMUMachine(self.qemu_bin)
if args:
vm.add_args(*args)
return vm
