jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
1# Migration test
2#
3# Copyright (c) 2019 Red Hat, Inc.
4#
5# Authors:
6# Cleber Rosa <crosa@redhat.com>
7# Caio Carrara <ccarrara@redhat.com>
8#
9# This work is licensed under the terms of the GNU GPL, version 2 or
10# later. See the COPYING file in the top-level directory.
11
12
13import tempfile
14from avocado_qemu import Test
15from avocado import skipUnless
16
17from avocado.utils import network
18from avocado.utils import wait
19from avocado.utils.path import find_command
20
21
22class Migration(Test):
23 """
24 :avocado: tags=migration
25 """
26
27 timeout = 10
28
29 @staticmethod
30 def migration_finished(vm):
31 return vm.command('query-migrate')['status'] in ('completed', 'failed')
32
33 def assert_migration(self, src_vm, dst_vm):
34 wait.wait_for(self.migration_finished,
35 timeout=self.timeout,
36 step=0.1,
37 args=(src_vm,))
38 wait.wait_for(self.migration_finished,
39 timeout=self.timeout,
40 step=0.1,
41 args=(dst_vm,))
42 self.assertEqual(src_vm.command('query-migrate')['status'], 'completed')
43 self.assertEqual(dst_vm.command('query-migrate')['status'], 'completed')
44 self.assertEqual(dst_vm.command('query-status')['status'], 'running')
45 self.assertEqual(src_vm.command('query-status')['status'],'postmigrate')
46
47 def do_migrate(self, dest_uri, src_uri=None):
48 dest_vm = self.get_vm('-incoming', dest_uri)
49 dest_vm.add_args('-nodefaults')
50 dest_vm.launch()
51 if src_uri is None:
52 src_uri = dest_uri
53 source_vm = self.get_vm()
54 source_vm.add_args('-nodefaults')
55 source_vm.launch()
56 source_vm.qmp('migrate', uri=src_uri)
57 self.assert_migration(source_vm, dest_vm)
58
59 def _get_free_port(self):
60 port = network.find_free_port()
61 if port is None:
62 self.cancel('Failed to find a free port')
63 return port
64
65
66 def test_migration_with_tcp_localhost(self):
67 dest_uri = 'tcp:localhost:%u' % self._get_free_port()
68 self.do_migrate(dest_uri)
69
70 def test_migration_with_unix(self):
71 with tempfile.TemporaryDirectory(prefix='socket_') as socket_path:
72 dest_uri = 'unix:%s/qemu-test.sock' % socket_path
73 self.do_migrate(dest_uri)
74
75 @skipUnless(find_command('nc', default=False), "'nc' command not found")
76 def test_migration_with_exec(self):
77 """The test works for both netcat-traditional and netcat-openbsd packages."""
78 free_port = self._get_free_port()
79 dest_uri = 'exec:nc -l localhost %u' % free_port
80 src_uri = 'exec:nc localhost %u' % free_port
81 self.do_migrate(dest_uri, src_uri)