xref: /openbmc/qemu/tests/avocado/replay_linux.py (revision 7d87775f) 
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.linuxtest 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=on,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 vm_add_cdrom(self, vm, path, id, device):
58        vm.add_args('-drive', 'file=%s,id=disk%s,if=none,media=cdrom' % (path, id))
59
60    def launch_and_wait(self, record, args, shift):
61        self.require_netdev('user')
62        vm = self.get_vm()
63        vm.add_args('-smp', '1')
64        vm.add_args('-m', '1024')
65        vm.add_args('-netdev', 'user,id=vnet,hostfwd=:127.0.0.1:0-:22',
66                    '-device', 'virtio-net,netdev=vnet')
67        vm.add_args('-object', 'filter-replay,id=replay,netdev=vnet')
68        if args:
69            vm.add_args(*args)
70        self.vm_add_disk(vm, self.boot_path, 0, self.hdd)
71        self.vm_add_cdrom(vm, self.cloudinit_path, 1, self.cd)
72        logger = logging.getLogger('replay')
73        if record:
74            logger.info('recording the execution...')
75            mode = 'record'
76        else:
77            logger.info('replaying the execution...')
78            mode = 'replay'
79        replay_path = os.path.join(self.workdir, 'replay.bin')
80        vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s' %
81                    (shift, mode, replay_path))
82
83        start_time = time.time()
84
85        vm.set_console()
86        vm.launch()
87        console_drainer = datadrainer.LineLogger(vm.console_socket.fileno(),
88                                    logger=self.log.getChild('console'),
89                                    stop_check=(lambda : not vm.is_running()))
90        console_drainer.start()
91        if record:
92            while not self.phone_server.instance_phoned_back:
93                self.phone_server.handle_request()
94            vm.shutdown()
95            logger.info('finished the recording with log size %s bytes'
96                % os.path.getsize(replay_path))
97            self.run_replay_dump(replay_path)
98            logger.info('successfully tested replay-dump.py')
99        else:
100            vm.event_wait('SHUTDOWN', self.timeout)
101            vm.wait()
102            logger.info('successfully finished the replay')
103        elapsed = time.time() - start_time
104        logger.info('elapsed time %.2f sec' % elapsed)
105        return elapsed
106
107    def run_rr(self, args=None, shift=7):
108        t1 = self.launch_and_wait(True, args, shift)
109        t2 = self.launch_and_wait(False, args, shift)
110        logger = logging.getLogger('replay')
111        logger.info('replay overhead {:.2%}'.format(t2 / t1 - 1))
112
113    def run_replay_dump(self, replay_path):
114        try:
115            subprocess.check_call(["./scripts/replay-dump.py",
116                                   "-f", replay_path],
117                                  stdout=subprocess.DEVNULL)
118        except subprocess.CalledProcessError:
119            self.fail('replay-dump.py failed')
120
121@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
122class ReplayLinuxX8664(ReplayLinux):
123    """
124    :avocado: tags=arch:x86_64
125    :avocado: tags=accel:tcg
126    """
127
128    chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
129
130    def test_pc_i440fx(self):
131        """
132        :avocado: tags=machine:pc
133        """
134        self.run_rr(shift=1)
135
136    def test_pc_q35(self):
137        """
138        :avocado: tags=machine:q35
139        """
140        self.run_rr(shift=3)
141
142@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
143class ReplayLinuxX8664Virtio(ReplayLinux):
144    """
145    :avocado: tags=arch:x86_64
146    :avocado: tags=virtio
147    :avocado: tags=accel:tcg
148    """
149
150    hdd = 'virtio-blk-pci'
151    cd = 'virtio-blk-pci'
152    bus = None
153
154    chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
155
156    def test_pc_i440fx(self):
157        """
158        :avocado: tags=machine:pc
159        """
160        self.run_rr(shift=1)
161
162    def test_pc_q35(self):
163        """
164        :avocado: tags=machine:q35
165        """
166        self.run_rr(shift=3)
167
168@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
169class ReplayLinuxAarch64(ReplayLinux):
170    """
171    :avocado: tags=accel:tcg
172    :avocado: tags=arch:aarch64
173    :avocado: tags=machine:virt
174    :avocado: tags=cpu:max
175    """
176
177    chksum = '1e18d9c0cf734940c4b5d5ec592facaed2af0ad0329383d5639c997fdf16fe49'
178
179    hdd = 'virtio-blk-device'
180    cd = 'virtio-blk-device'
181    bus = None
182
183    def get_common_args(self):
184        return ('-bios',
185                os.path.join(BUILD_DIR, 'pc-bios', 'edk2-aarch64-code.fd'),
186                "-cpu", "max,lpa2=off",
187                '-device', 'virtio-rng-pci,rng=rng0',
188                '-object', 'rng-builtin,id=rng0')
189
190    def test_virt_gicv2(self):
191        """
192        :avocado: tags=machine:gic-version=2
193        """
194
195        self.run_rr(shift=3,
196                    args=(*self.get_common_args(),
197                          "-machine", "virt,gic-version=2"))
198
199    def test_virt_gicv3(self):
200        """
201        :avocado: tags=machine:gic-version=3
202        """
203
204        self.run_rr(shift=3,
205                    args=(*self.get_common_args(),
206                          "-machine", "virt,gic-version=3"))
207