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Tue, 21 Feb 2023 01:46:03 -0800 (PST) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 568951FFC1; Tue, 21 Feb 2023 09:46:00 +0000 (GMT) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Markus Armbruster , Peter Maydell , Yonggang Luo , Li-Wen Hsu , Paolo Bonzini , Thomas Huth , Ed Maste , Bandan Das , Cleber Rosa , Qiuhao Li , qemu-block@nongnu.org, Beraldo Leal , Hanna Reitz , qemu-arm@nongnu.org, Michael Roth , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Pavel Dovgalyuk , Alexander Bulekov , Darren Kenny , Aurelien Jarno , Bastian Koppelmann , Wainer dos Santos Moschetta , Stefan Hajnoczi , Kevin Wolf , John Snow , =?utf-8?q?Alex_Benn=C3=A9e?= , =?utf-8?q?Daniel_P?= =?utf-8?q?=2E_Berrang=C3=A9?= , Anders Roxell Subject: [PATCH v2 11/14] tests: add tuxrun baseline test to avocado Date: Tue, 21 Feb 2023 09:45:55 +0000 Message-Id: <20230221094558.2864616-12-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230221094558.2864616-1-alex.bennee@linaro.org> References: <20230221094558.2864616-1-alex.bennee@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::42e; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x42e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org The TuxRun project (www.tuxrun.org) uses QEMU to run tests on a wide variety of kernel configurations on wide range of our emulated platforms. They publish a known good set of images at: https://storage.tuxboot.com/ to help with bisecting regressions in either the kernel, firmware or QEMU itself. The tests are pretty lightweight as they contain just a kernel with a minimal rootfs which boots a lot faster than most of the distros. In time they might be persuaded to version there known good baselines and we can then enable proper checksums. For a couple of tests we currently skip: - mips64, a regression against previous stable release - sh4, very unstable with intermittent oops Total run time: 340s (default) -> 890s (debug) Overall coverage rate (tested targets + disabled tests): lines......: 16.1% (126894 of 789848 lines) functions..: 20.6% (15954 of 77489 functions) branches...: 9.3% (40727 of 439365 branches) Signed-off-by: Alex Bennée Cc: Anders Roxell Acked-by: Thomas Huth --- v2 - renamed to tuxrun_baselines, update commit message - add remaining targets - add more metadata tags for the differences - refactor tag code - skip mips64 and sh4 tests in CI - slightly increase delay for login - include in MAINTAINERS --- MAINTAINERS | 1 + tests/avocado/tuxrun_baselines.py | 423 ++++++++++++++++++++++++++++++ 2 files changed, 424 insertions(+) create mode 100644 tests/avocado/tuxrun_baselines.py diff --git a/MAINTAINERS b/MAINTAINERS index 21595f0aad..d264f1d982 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3760,6 +3760,7 @@ F: scripts/ci/ F: tests/docker/ F: tests/vm/ F: tests/lcitool/ +F: tests/avocado/tuxrun_baselines.py F: scripts/archive-source.sh F: docs/devel/testing.rst W: https://gitlab.com/qemu-project/qemu/pipelines diff --git a/tests/avocado/tuxrun_baselines.py b/tests/avocado/tuxrun_baselines.py new file mode 100644 index 0000000000..30aaefc1d3 --- /dev/null +++ b/tests/avocado/tuxrun_baselines.py @@ -0,0 +1,423 @@ +# Functional test that boots known good tuxboot images the same way +# that tuxrun (www.tuxrun.org) does. This tool is used by things like +# the LKFT project to run regression tests on kernels. +# +# Copyright (c) 2023 Linaro Ltd. +# +# Author: +# Alex Bennée +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import os +import time + +from avocado import skip, skipIf +from avocado_qemu import QemuSystemTest +from avocado_qemu import exec_command, exec_command_and_wait_for_pattern +from avocado_qemu import wait_for_console_pattern +from avocado.utils import process +from avocado.utils.path import find_command + +class TuxRunBaselineTest(QemuSystemTest): + """ + :avocado: tags=accel:tcg + """ + + KERNEL_COMMON_COMMAND_LINE = 'printk.time=0' + # Tests are ~10-40s, allow for --debug/--enable-gcov overhead + timeout = 100 + + def get_tag(self, tagname, default=None): + """ + Get the metadata tag or return the default. + """ + utag = self._get_unique_tag_val(tagname) + print(f"{tagname}/{default} -> {utag}") + if utag: + return utag + + return default + + def setUp(self): + super().setUp() + + # We need zstd for all the tuxrun tests + # See https://github.com/avocado-framework/avocado/issues/5609 + zstd = find_command('zstd', False) + if zstd is False: + self.cancel('Could not find "zstd", which is required to ' + 'decompress rootfs') + self.zstd = zstd + + # Process the TuxRun specific tags, most machines work with + # reasonable defaults but we sometimes need to tweak the + # config. To avoid open coding everything we store all these + # details in the metadata for each test. + + # The tuxboot tag matches the root directory + self.tuxboot = self.get_tag('tuxboot') + + # Most Linux's use ttyS0 for their serial port + self.console = self.get_tag('console', "ttyS0") + + # Does the machine shutdown QEMU nicely on "halt" + self.shutdown = self.get_tag('shutdown') + + # The name of the kernel Image file + self.image = self.get_tag('image', "Image") + + # The block device drive type + self.drive = self.get_tag('drive', "virtio-blk-device") + + self.root = self.get_tag('root', "vda") + + # Occasionally we need extra devices to hook things up + self.extradev = self.get_tag('extradev') + + def wait_for_console_pattern(self, success_message, vm=None): + wait_for_console_pattern(self, success_message, + failure_message='Kernel panic - not syncing', + vm=vm) + + def fetch_tuxrun_assets(self, dt=None): + """ + Fetch the TuxBoot assets. They are stored in a standard way so we + use the per-test tags to fetch details. + """ + base_url = f"https://storage.tuxboot.com/{self.tuxboot}/" + kernel_image = self.fetch_asset(base_url + self.image) + disk_image_zst = self.fetch_asset(base_url + "rootfs.ext4.zst") + + cmd = f"{self.zstd} -d {disk_image_zst} -o {self.workdir}/rootfs.ext4" + process.run(cmd) + + if dt: + dtb = self.fetch_asset(base_url + dt) + else: + dtb = None + + return (kernel_image, self.workdir + "/rootfs.ext4", dtb) + + def prepare_run(self, kernel, disk, dtb=None, console_index=0): + """ + Setup to run and add the common parameters to the system + """ + self.vm.set_console(console_index=console_index) + + # all block devices are raw ext4's + blockdev = "driver=raw,file.driver=file," \ + + f"file.filename={disk},node-name=hd0" + + kcmd_line = self.KERNEL_COMMON_COMMAND_LINE + kcmd_line += f" root=/dev/{self.root}" + kcmd_line += f" console={self.console}" + + self.vm.add_args('-kernel', kernel, + '-append', kcmd_line, + '-blockdev', blockdev) + + # Sometimes we need extra devices attached + if self.extradev: + self.vm.add_args('-device', self.extradev) + + # Some machines already define a drive device + if self.drive != "none": + self.vm.add_args('-device', + f"{self.drive},drive=hd0") + + # Some machines need an explicit DTB + if dtb: + self.vm.add_args('-dtb', dtb) + + def run_tuxtest_tests(self, haltmsg): + """ + Wait for the system to boot up, wait for the login prompt and + then do a few things on the console. Trigger a shutdown and + wait to exit cleanly. + """ + self.wait_for_console_pattern("Welcome to TuxTest") + time.sleep(0.2) + exec_command(self, 'root') + time.sleep(0.2) + exec_command(self, 'cat /proc/interrupts') + time.sleep(0.1) + exec_command(self, 'cat /proc/self/maps') + time.sleep(0.1) + exec_command(self, 'uname -a') + time.sleep(0.1) + exec_command_and_wait_for_pattern(self, 'halt', haltmsg) + + # Wait for VM to shut down gracefully if it can + if self.shutdown == "nowait": + self.vm.shutdown() + else: + self.vm.wait() + + def common_tuxrun(self, dt=None, haltmsg="reboot: System halted", + console_index=0): + """ + Common path for LKFT tests. Unless we need to do something + special with the command line we can process most things using + the tag metadata. + """ + (kernel, disk, dtb) = self.fetch_tuxrun_assets(dt) + + self.prepare_run(kernel, disk, dtb, console_index) + self.vm.launch() + self.run_tuxtest_tests(haltmsg) + + # + # The tests themselves. The configuration is derived from how + # tuxrun invokes qemu (with minor tweaks like using -blockdev + # consistently). The tuxrun equivalent is something like: + # + # tuxrun --device qemu-{ARCH} \ + # --kernel https://storage.tuxboot.com/{TUXBOOT}/{IMAGE} + # + + def test_arm64(self): + """ + :avocado: tags=arch:aarch64 + :avocado: tags=cpu:cortex-a57 + :avocado: tags=machine:virt + :avocado: tags=tuxboot:arm64 + :avocado: tags=console:ttyAMA0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_arm64be(self): + """ + :avocado: tags=arch:aarch64 + :avocado: tags=cpu:cortex-a57 + :avocado: tags=endian:big + :avocado: tags=machine:virt + :avocado: tags=tuxboot:arm64be + :avocado: tags=console:ttyAMA0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_armv5(self): + """ + :avocado: tags=arch:arm + :avocado: tags=cpu:arm926 + :avocado: tags=machine:versatilepb + :avocado: tags=tuxboot:armv5 + :avocado: tags=image:zImage + :avocado: tags=drive:virtio-blk-pci + :avocado: tags=console:ttyAMA0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun(dt="versatile-pb.dtb") + + def test_armv7(self): + """ + :avocado: tags=arch:arm + :avocado: tags=cpu:cortex-a15 + :avocado: tags=machine:virt + :avocado: tags=tuxboot:armv7 + :avocado: tags=image:zImage + :avocado: tags=console:ttyAMA0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_armv7be(self): + """ + :avocado: tags=arch:arm + :avocado: tags=cpu:cortex-a15 + :avocado: tags=endian:big + :avocado: tags=machine:virt + :avocado: tags=tuxboot:armv7be + :avocado: tags=image:zImage + :avocado: tags=console:ttyAMA0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_i386(self): + """ + :avocado: tags=arch:i386 + :avocado: tags=cpu:coreduo + :avocado: tags=machine:q35 + :avocado: tags=tuxboot:i386 + :avocado: tags=image:bzImage + :avocado: tags=drive:virtio-blk-pci + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_mips32(self): + """ + :avocado: tags=arch:mips + :avocado: tags=machine:malta + :avocado: tags=cpu:mips32r6-generic + :avocado: tags=endian:big + :avocado: tags=tuxboot:mips32 + :avocado: tags=image:vmlinux + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=root:sda + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_mips32el(self): + """ + :avocado: tags=arch:mipsel + :avocado: tags=machine:malta + :avocado: tags=cpu:mips32r6-generic + :avocado: tags=tuxboot:mips32el + :avocado: tags=image:vmlinux + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=root:sda + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + @skip("QEMU currently broken") # regression against stable QEMU + def test_mips64(self): + """ + :avocado: tags=arch:mips64 + :avocado: tags=machine:malta + :avocado: tags=tuxboot:mips64 + :avocado: tags=endian:big + :avocado: tags=image:vmlinux + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=root:sda + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_mips64el(self): + """ + :avocado: tags=arch:mips64el + :avocado: tags=machine:malta + :avocado: tags=tuxboot:mips64el + :avocado: tags=image:vmlinux + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=root:sda + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_ppc32(self): + """ + :avocado: tags=arch:ppc + :avocado: tags=machine:ppce500 + :avocado: tags=cpu:e500mc + :avocado: tags=tuxboot:ppc32 + :avocado: tags=image:uImage + :avocado: tags=drive:virtio-blk-pci + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_ppc64(self): + """ + :avocado: tags=arch:ppc64 + :avocado: tags=machine:pseries + :avocado: tags=cpu:POWER8 + :avocado: tags=endian:big + :avocado: tags=console:hvc0 + :avocado: tags=tuxboot:ppc64 + :avocado: tags=image:vmlinux + :avocado: tags=extradev:driver=spapr-vscsi + :avocado: tags=drive:scsi-hd + :avocado: tags=root:sda + """ + self.common_tuxrun() + + def test_ppc64le(self): + """ + :avocado: tags=arch:ppc64 + :avocado: tags=machine:pseries + :avocado: tags=cpu:POWER8 + :avocado: tags=console:hvc0 + :avocado: tags=tuxboot:ppc64le + :avocado: tags=image:vmlinux + :avocado: tags=extradev:driver=spapr-vscsi + :avocado: tags=drive:scsi-hd + :avocado: tags=root:sda + """ + self.common_tuxrun() + + def test_riscv32(self): + """ + :avocado: tags=arch:riscv32 + :avocado: tags=machine:virt + :avocado: tags=tuxboot:riscv32 + """ + self.common_tuxrun() + + def test_riscv64(self): + """ + :avocado: tags=arch:riscv64 + :avocado: tags=machine:virt + :avocado: tags=tuxboot:riscv64 + """ + self.common_tuxrun() + + def test_s390(self): + """ + :avocado: tags=arch:s390x + :avocado: tags=endian:big + :avocado: tags=tuxboot:s390 + :avocado: tags=image:bzImage + :avocado: tags=drive:virtio-blk-ccw + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun(haltmsg="Requesting system halt") + + # Note: some segfaults caused by unaligned userspace access + @skipIf(os.getenv('GITLAB_CI'), 'Skipping unstable test on GitLab') + def test_sh4(self): + """ + :avocado: tags=arch:sh4 + :avocado: tags=machine:r2d + :avocado: tags=cpu:sh7785 + :avocado: tags=tuxboot:sh4 + :avocado: tags=image:zImage + :avocado: tags=root:sda + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=console:ttySC1 + """ + # The test is currently too unstable to do much in userspace + # so we skip common_tuxrun and do a minimal boot and shutdown. + (kernel, disk, dtb) = self.fetch_tuxrun_assets() + + # the console comes on the second serial port + self.prepare_run(kernel, disk, console_index=1) + self.vm.launch() + + self.wait_for_console_pattern("Welcome to TuxTest") + time.sleep(0.1) + exec_command(self, 'root') + time.sleep(0.1) + exec_command_and_wait_for_pattern(self, 'halt', + "reboot: System halted") + + def test_sparc64(self): + """ + :avocado: tags=arch:sparc64 + :avocado: tags=tuxboot:sparc64 + :avocado: tags=image:vmlinux + :avocado: tags=root:sda + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun() + + def test_x86_64(self): + """ + :avocado: tags=arch:x86_64 + :avocado: tags=machine:q35 + :avocado: tags=cpu:Nehalem + :avocado: tags=tuxboot:x86_64 + :avocado: tags=image:bzImage + :avocado: tags=root:sda + :avocado: tags=drive:driver=ide-hd,bus=ide.0,unit=0 + :avocado: tags=shutdown:nowait + """ + self.common_tuxrun()