replay_linux.py (6216B)
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.shutdown(True) 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"))