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Diffstat (limited to 'tests/functional/qemu_test/tuxruntest.py')
-rw-r--r-- | tests/functional/qemu_test/tuxruntest.py | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/tests/functional/qemu_test/tuxruntest.py b/tests/functional/qemu_test/tuxruntest.py new file mode 100644 index 0000000..6c442ff --- /dev/null +++ b/tests/functional/qemu_test/tuxruntest.py @@ -0,0 +1,136 @@ +# 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 <alex.bennee@linaro.org> +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import os + +from qemu_test import QemuSystemTest +from qemu_test import exec_command_and_wait_for_pattern +from qemu_test import wait_for_console_pattern +from qemu_test import which, get_qemu_img + +class TuxRunBaselineTest(QemuSystemTest): + + KERNEL_COMMON_COMMAND_LINE = 'printk.time=0' + # Tests are ~10-40s, allow for --debug/--enable-gcov overhead + timeout = 100 + + def setUp(self): + super().setUp() + + # We need zstd for all the tuxrun tests + if which('zstd') is None: + self.skipTest("zstd not found in $PATH") + + # Pre-init TuxRun specific settings: 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.arch + + # Most Linux's use ttyS0 for their serial port + self.console = "ttyS0" + + # Does the machine shutdown QEMU nicely on "halt" + self.wait_for_shutdown = True + + self.root = "vda" + + # Occasionally we need extra devices to hook things up + self.extradev = None + + self.qemu_img = get_qemu_img(self) + + 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, kernel_asset, rootfs_asset, dtb_asset=None): + """ + Fetch the TuxBoot assets. + """ + kernel_image = kernel_asset.fetch() + disk_image = self.uncompress(rootfs_asset) + dtb = dtb_asset.fetch() if dtb_asset is not None else None + + return (kernel_image, disk_image, dtb) + + def prepare_run(self, kernel, disk, drive, 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" + + self.kcmd_line = self.KERNEL_COMMON_COMMAND_LINE + self.kcmd_line += f" root=/dev/{self.root}" + self.kcmd_line += f" console={self.console}" + + self.vm.add_args('-kernel', kernel, + '-append', self.kcmd_line, + '-blockdev', blockdev) + + # Sometimes we need extra devices attached + if self.extradev: + self.vm.add_args('-device', self.extradev) + + self.vm.add_args('-device', + f"{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. + """ + ps1='root@tuxtest:~#' + self.wait_for_console_pattern(self.kcmd_line) + self.wait_for_console_pattern('tuxtest login:') + exec_command_and_wait_for_pattern(self, 'root', ps1) + exec_command_and_wait_for_pattern(self, 'cat /proc/interrupts', ps1) + exec_command_and_wait_for_pattern(self, 'cat /proc/self/maps', ps1) + exec_command_and_wait_for_pattern(self, 'uname -a', ps1) + exec_command_and_wait_for_pattern(self, 'halt', haltmsg) + + # Wait for VM to shut down gracefully if it can + if self.wait_for_shutdown: + self.vm.wait() + else: + self.vm.shutdown() + + def common_tuxrun(self, + kernel_asset, + rootfs_asset, + dtb_asset=None, + drive="virtio-blk-device", + 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(kernel_asset, rootfs_asset, + dtb_asset) + + self.prepare_run(kernel, disk, drive, dtb, console_index) + self.vm.launch() + self.run_tuxtest_tests(haltmsg) + os.remove(disk) |