82184f4018
This patch adds a test for record/replay, which boots Linux image from the disk and interacts with the network. The idea and code of this test is borrowed from boot_linux.py This test includes only x86_64 platform. Other platforms and machines will be added later after testing and improving record/replay to completely support them. Each test consists of the following phases: - downloading the disk image - recording the execution - replaying the execution Replay does not validates the output, but waits until QEMU finishes the execution. This is reasonable, because QEMU usually hangs when replay goes wrong. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> Reviewed-by: Willian Rampazzo <willianr@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <162737554047.1735673.13133593401566029378.stgit@pasha-ThinkPad-X280>
117 lines
3.8 KiB
Python
117 lines
3.8 KiB
Python
# Record/replay test that boots a complete Linux system via a cloud image
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#
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# Copyright (c) 2020 ISP RAS
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#
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# Author:
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# Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or
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# later. See the COPYING file in the top-level directory.
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import os
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import logging
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import time
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from avocado import skipUnless
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from avocado.utils import cloudinit
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from avocado.utils import network
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from avocado.utils import vmimage
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from avocado.utils import datadrainer
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from avocado.utils.path import find_command
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from avocado_qemu import LinuxTest
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class ReplayLinux(LinuxTest):
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"""
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Boots a Linux system, checking for a successful initialization
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"""
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timeout = 1800
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chksum = None
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hdd = 'ide-hd'
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cd = 'ide-cd'
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bus = 'ide'
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def setUp(self):
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super(ReplayLinux, self).setUp()
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self.boot_path = self.download_boot()
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self.cloudinit_path = self.prepare_cloudinit()
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def vm_add_disk(self, vm, path, id, device):
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bus_string = ''
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if self.bus:
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bus_string = ',bus=%s.%d' % (self.bus, id,)
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vm.add_args('-drive', 'file=%s,snapshot,id=disk%s,if=none' % (path, id))
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vm.add_args('-drive',
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'driver=blkreplay,id=disk%s-rr,if=none,image=disk%s' % (id, id))
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vm.add_args('-device',
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'%s,drive=disk%s-rr%s' % (device, id, bus_string))
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def launch_and_wait(self, record, args, shift):
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vm = self.get_vm()
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vm.add_args('-smp', '1')
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vm.add_args('-m', '1024')
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vm.add_args('-object', 'filter-replay,id=replay,netdev=hub0port0')
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if args:
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vm.add_args(*args)
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self.vm_add_disk(vm, self.boot_path, 0, self.hdd)
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self.vm_add_disk(vm, self.cloudinit_path, 1, self.cd)
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logger = logging.getLogger('replay')
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if record:
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logger.info('recording the execution...')
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mode = 'record'
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else:
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logger.info('replaying the execution...')
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mode = 'replay'
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replay_path = os.path.join(self.workdir, 'replay.bin')
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vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s' %
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(shift, mode, replay_path))
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start_time = time.time()
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vm.set_console()
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vm.launch()
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console_drainer = datadrainer.LineLogger(vm.console_socket.fileno(),
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logger=self.log.getChild('console'),
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stop_check=(lambda : not vm.is_running()))
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console_drainer.start()
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if record:
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cloudinit.wait_for_phone_home(('0.0.0.0', self.phone_home_port),
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self.name)
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vm.shutdown()
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logger.info('finished the recording with log size %s bytes'
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% os.path.getsize(replay_path))
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else:
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vm.event_wait('SHUTDOWN', self.timeout)
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vm.shutdown(True)
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logger.info('successfully fihished the replay')
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elapsed = time.time() - start_time
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logger.info('elapsed time %.2f sec' % elapsed)
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return elapsed
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def run_rr(self, args=None, shift=7):
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t1 = self.launch_and_wait(True, args, shift)
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t2 = self.launch_and_wait(False, args, shift)
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logger = logging.getLogger('replay')
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logger.info('replay overhead {:.2%}'.format(t2 / t1 - 1))
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@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
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class ReplayLinuxX8664(ReplayLinux):
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"""
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:avocado: tags=arch:x86_64
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:avocado: tags=accel:tcg
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"""
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chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
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def test_pc_i440fx(self):
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"""
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:avocado: tags=machine:pc
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"""
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self.run_rr(shift=1)
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def test_pc_q35(self):
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"""
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:avocado: tags=machine:q35
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"""
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self.run_rr(shift=3)
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