xref: /qemu/tests/avocado/replay_linux.py (revision 8b7b9c5c) 
1# Record/replay test that boots a complete Linux system via a cloud image
2#
3# Copyright (c) 2020 ISP RAS
4#
5# Author:
6#  Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
7#
8# This work is licensed under the terms of the GNU GPL, version 2 or
9# later.  See the COPYING file in the top-level directory.
10
11import os
12import logging
13import time
14
15from avocado import skipUnless
16from avocado_qemu import BUILD_DIR
17from avocado.utils import cloudinit
18from avocado.utils import network
19from avocado.utils import vmimage
20from avocado.utils import datadrainer
21from avocado.utils.path import find_command
22from avocado_qemu import LinuxTest
23
24class ReplayLinux(LinuxTest):
25    """
26    Boots a Linux system, checking for a successful initialization
27    """
28
29    timeout = 1800
30    chksum = None
31    hdd = 'ide-hd'
32    cd = 'ide-cd'
33    bus = 'ide'
34
35    def setUp(self):
36        # LinuxTest does many replay-incompatible things, but includes
37        # useful methods. Do not setup LinuxTest here and just
38        # call some functions.
39        super(LinuxTest, self).setUp()
40        self._set_distro()
41        self.boot_path = self.download_boot()
42        self.phone_server = cloudinit.PhoneHomeServer(('0.0.0.0', 0),
43                                                      self.name)
44        ssh_pubkey, self.ssh_key = self.set_up_existing_ssh_keys()
45        self.cloudinit_path = self.prepare_cloudinit(ssh_pubkey)
46
47    def vm_add_disk(self, vm, path, id, device):
48        bus_string = ''
49        if self.bus:
50            bus_string = ',bus=%s.%d' % (self.bus, id,)
51        vm.add_args('-drive', 'file=%s,snapshot,id=disk%s,if=none' % (path, id))
52        vm.add_args('-drive',
53            'driver=blkreplay,id=disk%s-rr,if=none,image=disk%s' % (id, id))
54        vm.add_args('-device',
55            '%s,drive=disk%s-rr%s' % (device, id, bus_string))
56
57    def launch_and_wait(self, record, args, shift):
58        self.require_netdev('user')
59        vm = self.get_vm()
60        vm.add_args('-smp', '1')
61        vm.add_args('-m', '1024')
62        vm.add_args('-netdev', 'user,id=vnet,hostfwd=:127.0.0.1:0-:22',
63                    '-device', 'virtio-net,netdev=vnet')
64        vm.add_args('-object', 'filter-replay,id=replay,netdev=vnet')
65        if args:
66            vm.add_args(*args)
67        self.vm_add_disk(vm, self.boot_path, 0, self.hdd)
68        self.vm_add_disk(vm, self.cloudinit_path, 1, self.cd)
69        logger = logging.getLogger('replay')
70        if record:
71            logger.info('recording the execution...')
72            mode = 'record'
73        else:
74            logger.info('replaying the execution...')
75            mode = 'replay'
76        replay_path = os.path.join(self.workdir, 'replay.bin')
77        vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s' %
78                    (shift, mode, replay_path))
79
80        start_time = time.time()
81
82        vm.set_console()
83        vm.launch()
84        console_drainer = datadrainer.LineLogger(vm.console_socket.fileno(),
85                                    logger=self.log.getChild('console'),
86                                    stop_check=(lambda : not vm.is_running()))
87        console_drainer.start()
88        if record:
89            while not self.phone_server.instance_phoned_back:
90                self.phone_server.handle_request()
91            vm.shutdown()
92            logger.info('finished the recording with log size %s bytes'
93                % os.path.getsize(replay_path))
94        else:
95            vm.event_wait('SHUTDOWN', self.timeout)
96            vm.wait()
97            logger.info('successfully fihished the replay')
98        elapsed = time.time() - start_time
99        logger.info('elapsed time %.2f sec' % elapsed)
100        return elapsed
101
102    def run_rr(self, args=None, shift=7):
103        t1 = self.launch_and_wait(True, args, shift)
104        t2 = self.launch_and_wait(False, args, shift)
105        logger = logging.getLogger('replay')
106        logger.info('replay overhead {:.2%}'.format(t2 / t1 - 1))
107
108@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
109class ReplayLinuxX8664(ReplayLinux):
110    """
111    :avocado: tags=arch:x86_64
112    :avocado: tags=accel:tcg
113    """
114
115    chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
116
117    def test_pc_i440fx(self):
118        """
119        :avocado: tags=machine:pc
120        """
121        self.run_rr(shift=1)
122
123    def test_pc_q35(self):
124        """
125        :avocado: tags=machine:q35
126        """
127        self.run_rr(shift=3)
128
129@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
130class ReplayLinuxX8664Virtio(ReplayLinux):
131    """
132    :avocado: tags=arch:x86_64
133    :avocado: tags=virtio
134    :avocado: tags=accel:tcg
135    """
136
137    hdd = 'virtio-blk-pci'
138    cd = 'virtio-blk-pci'
139    bus = None
140
141    chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
142
143    def test_pc_i440fx(self):
144        """
145        :avocado: tags=machine:pc
146        """
147        self.run_rr(shift=1)
148
149    def test_pc_q35(self):
150        """
151        :avocado: tags=machine:q35
152        """
153        self.run_rr(shift=3)
154
155@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
156class ReplayLinuxAarch64(ReplayLinux):
157    """
158    :avocado: tags=accel:tcg
159    :avocado: tags=arch:aarch64
160    :avocado: tags=machine:virt
161    :avocado: tags=cpu:max
162    """
163
164    chksum = '1e18d9c0cf734940c4b5d5ec592facaed2af0ad0329383d5639c997fdf16fe49'
165
166    hdd = 'virtio-blk-device'
167    cd = 'virtio-blk-device'
168    bus = None
169
170    def get_common_args(self):
171        return ('-bios',
172                os.path.join(BUILD_DIR, 'pc-bios', 'edk2-aarch64-code.fd'),
173                "-cpu", "max,lpa2=off",
174                '-device', 'virtio-rng-pci,rng=rng0',
175                '-object', 'rng-builtin,id=rng0')
176
177    def test_virt_gicv2(self):
178        """
179        :avocado: tags=machine:gic-version=2
180        """
181
182        self.run_rr(shift=3,
183                    args=(*self.get_common_args(),
184                          "-machine", "virt,gic-version=2"))
185
186    def test_virt_gicv3(self):
187        """
188        :avocado: tags=machine:gic-version=3
189        """
190
191        self.run_rr(shift=3,
192                    args=(*self.get_common_args(),
193                          "-machine", "virt,gic-version=3"))
194