tests/avocado/replay_linux.py

   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
  11 import os
  12 import logging
  13 import time
  14
  15 from avocado import skipUnless
  16 from avocado_qemu import BUILD_DIR
  17 from avocado.utils import cloudinit
  18 from avocado.utils import network
  19 from avocado.utils import vmimage
  20 from avocado.utils import datadrainer
  21 from avocado.utils.path import find_command
  22 from avocado_qemu import LinuxTest
  23
  24 class 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')
 109 class 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')
 130 class 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')
 156 class 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"))