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# Record/replay test that boots a complete Linux system via a cloud image
#
# Copyright (c) 2020 ISP RAS
#
# Author:
# Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
import logging
import time
from avocado import skipUnless
from avocado_qemu import BUILD_DIR
from avocado.utils import cloudinit
from avocado.utils import network
from avocado.utils import vmimage
from avocado.utils import datadrainer
from avocado.utils.path import find_command
from avocado_qemu import LinuxTest
class ReplayLinux(LinuxTest):
"""
Boots a Linux system, checking for a successful initialization
"""
timeout = 1800
chksum = None
hdd = 'ide-hd'
cd = 'ide-cd'
bus = 'ide'
def setUp(self):
# LinuxTest does many replay-incompatible things, but includes
# useful methods. Do not setup LinuxTest here and just
# call some functions.
super(LinuxTest, self).setUp()
self._set_distro()
self.boot_path = self.download_boot()
self.phone_server = cloudinit.PhoneHomeServer(('0.0.0.0', 0),
self.name)
ssh_pubkey, self.ssh_key = self.set_up_existing_ssh_keys()
self.cloudinit_path = self.prepare_cloudinit(ssh_pubkey)
def vm_add_disk(self, vm, path, id, device):
bus_string = ''
if self.bus:
bus_string = ',bus=%s.%d' % (self.bus, id,)
vm.add_args('-drive', 'file=%s,snapshot,id=disk%s,if=none' % (path, id))
vm.add_args('-drive',
'driver=blkreplay,id=disk%s-rr,if=none,image=disk%s' % (id, id))
vm.add_args('-device',
'%s,drive=disk%s-rr%s' % (device, id, bus_string))
def launch_and_wait(self, record, args, shift):
self.require_netdev('user')
vm = self.get_vm()
vm.add_args('-smp', '1')
vm.add_args('-m', '1024')
vm.add_args('-netdev', 'user,id=vnet,hostfwd=:127.0.0.1:0-:22',
'-device', 'virtio-net,netdev=vnet')
vm.add_args('-object', 'filter-replay,id=replay,netdev=vnet')
if args:
vm.add_args(*args)
self.vm_add_disk(vm, self.boot_path, 0, self.hdd)
self.vm_add_disk(vm, self.cloudinit_path, 1, self.cd)
logger = logging.getLogger('replay')
if record:
logger.info('recording the execution...')
mode = 'record'
else:
logger.info('replaying the execution...')
mode = 'replay'
replay_path = os.path.join(self.workdir, 'replay.bin')
vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s' %
(shift, mode, replay_path))
start_time = time.time()
vm.set_console()
vm.launch()
console_drainer = datadrainer.LineLogger(vm.console_socket.fileno(),
logger=self.log.getChild('console'),
stop_check=(lambda : not vm.is_running()))
console_drainer.start()
if record:
while not self.phone_server.instance_phoned_back:
self.phone_server.handle_request()
vm.shutdown()
logger.info('finished the recording with log size %s bytes'
% os.path.getsize(replay_path))
else:
vm.event_wait('SHUTDOWN', self.timeout)
vm.shutdown(True)
logger.info('successfully fihished the replay')
elapsed = time.time() - start_time
logger.info('elapsed time %.2f sec' % elapsed)
return elapsed
def run_rr(self, args=None, shift=7):
t1 = self.launch_and_wait(True, args, shift)
t2 = self.launch_and_wait(False, args, shift)
logger = logging.getLogger('replay')
logger.info('replay overhead {:.2%}'.format(t2 / t1 - 1))
@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
class ReplayLinuxX8664(ReplayLinux):
"""
:avocado: tags=arch:x86_64
:avocado: tags=accel:tcg
"""
chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
def test_pc_i440fx(self):
"""
:avocado: tags=machine:pc
"""
self.run_rr(shift=1)
def test_pc_q35(self):
"""
:avocado: tags=machine:q35
"""
self.run_rr(shift=3)
@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
class ReplayLinuxX8664Virtio(ReplayLinux):
"""
:avocado: tags=arch:x86_64
:avocado: tags=virtio
:avocado: tags=accel:tcg
"""
hdd = 'virtio-blk-pci'
cd = 'virtio-blk-pci'
bus = None
chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0'
def test_pc_i440fx(self):
"""
:avocado: tags=machine:pc
"""
self.run_rr(shift=1)
def test_pc_q35(self):
"""
:avocado: tags=machine:q35
"""
self.run_rr(shift=3)
@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout')
class ReplayLinuxAarch64(ReplayLinux):
"""
:avocado: tags=accel:tcg
:avocado: tags=arch:aarch64
:avocado: tags=machine:virt
:avocado: tags=cpu:max
"""
chksum = '1e18d9c0cf734940c4b5d5ec592facaed2af0ad0329383d5639c997fdf16fe49'
hdd = 'virtio-blk-device'
cd = 'virtio-blk-device'
bus = None
def get_common_args(self):
return ('-bios',
os.path.join(BUILD_DIR, 'pc-bios', 'edk2-aarch64-code.fd'),
"-cpu", "max,lpa2=off",
'-device', 'virtio-rng-pci,rng=rng0',
'-object', 'rng-builtin,id=rng0')
def test_virt_gicv2(self):
"""
:avocado: tags=machine:gic-version=2
"""
self.run_rr(shift=3,
args=(*self.get_common_args(),
"-machine", "virt,gic-version=2"))
def test_virt_gicv3(self):
"""
:avocado: tags=machine:gic-version=3
"""
self.run_rr(shift=3,
args=(*self.get_common_args(),
"-machine", "virt,gic-version=3"))
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