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#
# live migration tests
#
# stdlib
import os
# avocado
import avocado
from avocado.utils import network
from avocado.utils import wait
# qemu
from qemu import QEMUMachine
# my bits
from drminfo import TestDRM
class Migration(TestDRM):
"""
qemu display device migration tests
:avocado: tags=x86_64
"""
timeout = 60
@staticmethod
def migration_finished(vm):
return vm.command('query-migrate')['status'] in ('completed', 'failed')
def _get_free_port(self):
port = network.find_free_port()
if port is None:
self.cancel('Failed to find a free port')
return port
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 migration_test(self, vga):
self.boot_gfx_vm(vga);
self.console_prepare();
self.console_run('drminfo -a')
drminfo = self.console_wait('---root---')
self.write_text(vga, "drminfo-pre-migration", drminfo)
if not "framebuffer formats" in drminfo:
self.fail("drm device missing");
self.migrate_vm(vga)
self.console_run('drminfo -a')
drminfo = self.console_wait('---root---')
self.write_text(vga, "drminfo-post-migration", drminfo)
if not "framebuffer formats" in drminfo:
self.fail("drm device missing");
@avocado.skipUnless(os.path.exists('/usr/bin/dracut'), "no dracut")
@avocado.skipUnless(os.path.exists('/usr/bin/drminfo'), "no drminfo")
def setUp(self):
TestDRM.setUp(self);
if not os.path.isfile(self.initrd):
self.prepare_kernel_initrd()
def test_stdvga(self):
vga = 'VGA'
self.migration_test(vga)
def test_bochs_dpy(self):
vga = 'bochs-display'
self.migration_test(vga)
def test_cirrus(self):
vga = "cirrus-vga"
self.migration_test(vga)
def test_qxl(self):
vga = "qxl-vga"
self.migration_test(vga)
def test_virtio_vga(self):
vga = "virtio-vga"
self.migration_test(vga)
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