From nobody Sat Jul 12 06:18:42 2025 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=ispras.ru Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1623324416887767.0202871728185; Thu, 10 Jun 2021 04:26:56 -0700 (PDT) Received: from localhost ([::1]:49724 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lrIpr-0001vA-PI for importer2@patchew.org; Thu, 10 Jun 2021 07:26:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58536) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrIoL-0007yw-7L for qemu-devel@nongnu.org; Thu, 10 Jun 2021 07:25:21 -0400 Received: from mail.ispras.ru ([83.149.199.84]:55638) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lrIoI-0003Tq-AR for qemu-devel@nongnu.org; Thu, 10 Jun 2021 07:25:21 -0400 Received: from [127.0.1.1] (unknown [62.118.138.151]) by mail.ispras.ru (Postfix) with ESMTPSA id 8AB4540755E9; Thu, 10 Jun 2021 11:25:16 +0000 (UTC) Subject: [PATCH 6/6] tests/acceptance: Linux boot test for record/replay From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Thu, 10 Jun 2021 14:25:16 +0300 Message-ID: <162332431624.194926.5437474699339441010.stgit@pasha-ThinkPad-X280> In-Reply-To: <162332427732.194926.7555369160312506539.stgit@pasha-ThinkPad-X280> References: <162332427732.194926.7555369160312506539.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pavel.dovgalyuk@ispras.ru, philmd@redhat.com, wrampazz@redhat.com, crosa@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" From: Pavel Dovgalyuk 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 Reviewed-by: Willian Rampazzo --- MAINTAINERS | 1=20 tests/acceptance/replay_linux.py | 116 ++++++++++++++++++++++++++++++++++= ++++ 2 files changed, 117 insertions(+) create mode 100644 tests/acceptance/replay_linux.py diff --git a/MAINTAINERS b/MAINTAINERS index 7d9cd29042..9675a1095b 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2863,6 +2863,7 @@ F: include/sysemu/replay.h F: docs/replay.txt F: stubs/replay.c F: tests/acceptance/replay_kernel.py +F: tests/acceptance/replay_linux.py F: tests/acceptance/reverse_debugging.py F: qapi/replay.json =20 diff --git a/tests/acceptance/replay_linux.py b/tests/acceptance/replay_lin= ux.py new file mode 100644 index 0000000000..15953f9e49 --- /dev/null +++ b/tests/acceptance/replay_linux.py @@ -0,0 +1,116 @@ +# Record/replay test that boots a complete Linux system via a cloud image +# +# Copyright (c) 2020 ISP RAS +# +# Author: +# Pavel Dovgalyuk +# +# 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.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 =3D 1800 + chksum =3D None + hdd =3D 'ide-hd' + cd =3D 'ide-cd' + bus =3D 'ide' + + def setUp(self): + super(ReplayLinux, self).setUp() + self.boot_path =3D self.download_boot() + self.cloudinit_path =3D self.prepare_cloudinit() + + def vm_add_disk(self, vm, path, id, device): + bus_string =3D '' + if self.bus: + bus_string =3D ',bus=3D%s.%d' % (self.bus, id,) + vm.add_args('-drive', 'file=3D%s,snapshot,id=3Ddisk%s,if=3Dnone' %= (path, id)) + vm.add_args('-drive', + 'driver=3Dblkreplay,id=3Ddisk%s-rr,if=3Dnone,image=3Ddisk%s' %= (id, id)) + vm.add_args('-device', + '%s,drive=3Ddisk%s-rr%s' % (device, id, bus_string)) + + def launch_and_wait(self, record, args, shift): + vm =3D self.get_vm() + vm.add_args('-smp', '1') + vm.add_args('-m', '1024') + vm.add_args('-object', 'filter-replay,id=3Dreplay,netdev=3Dhub0por= t0') + 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 =3D logging.getLogger('replay') + if record: + logger.info('recording the execution...') + mode =3D 'record' + else: + logger.info('replaying the execution...') + mode =3D 'replay' + replay_path =3D os.path.join(self.workdir, 'replay.bin') + vm.add_args('-icount', 'shift=3D%s,rr=3D%s,rrfile=3D%s' % + (shift, mode, replay_path)) + + start_time =3D time.time() + + vm.set_console() + vm.launch() + console_drainer =3D datadrainer.LineLogger(vm.console_socket.filen= o(), + logger=3Dself.log.getChild('console'), + stop_check=3D(lambda : not vm.is_runni= ng())) + console_drainer.start() + if record: + cloudinit.wait_for_phone_home(('0.0.0.0', self.phone_home_port= ), + self.name) + 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 =3D time.time() - start_time + logger.info('elapsed time %.2f sec' % elapsed) + return elapsed + + def run_rr(self, args=3DNone, shift=3D7): + t1 =3D self.launch_and_wait(True, args, shift) + t2 =3D self.launch_and_wait(False, args, shift) + logger =3D 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=3Darch:x86_64 + :avocado: tags=3Daccel:tcg + """ + + chksum =3D 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c= 5c27a0' + + def test_pc_i440fx(self): + """ + :avocado: tags=3Dmachine:pc + """ + self.run_rr(shift=3D1) + + def test_pc_q35(self): + """ + :avocado: tags=3Dmachine:q35 + """ + self.run_rr(shift=3D3)