From patchwork Fri Oct 21 09:51:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ani Sinha X-Patchwork-Id: 13014597 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9A219C43217 for ; Fri, 21 Oct 2022 10:41:45 +0000 (UTC) Received: from localhost ([::1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1olpTD-0006nn-Bh for qemu-devel@archiver.kernel.org; Fri, 21 Oct 2022 06:41:43 -0400 Received: from [::1] (helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1olosa-0003Ra-JH for qemu-devel@archiver.kernel.org; Fri, 21 Oct 2022 06:03:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1olorp-0002BE-2X for qemu-devel@nongnu.org; Fri, 21 Oct 2022 06:03:05 -0400 Received: from mail-pj1-x1031.google.com ([2607:f8b0:4864:20::1031]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1olorm-0006KX-3f for qemu-devel@nongnu.org; Fri, 21 Oct 2022 06:03:04 -0400 Received: by mail-pj1-x1031.google.com with SMTP id x31-20020a17090a38a200b0020d2afec803so2410537pjb.2 for ; Fri, 21 Oct 2022 03:02:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=anisinha-ca.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=lp46z4pyjv78ITupA3bqlz9zVZdIathdr05qOlQawYQ=; b=ywUhXZUHKUE/fKReNuhuZ3mINpyOIRRY8gR5YJ4fP6snuu8LZzunEkmKrwLsQhIQxc NJQriyzB5sUgOALo6B9RoaG4DkNncq9pD4PZrtZd7vN/qBeFasXTJxAr3AXLFhQJSeTQ nU6CYaNSoc43/3kEILrsHoI+NZZtJDH+HNuOULxw3FaKAj1sAkCHGF601k4MCn0lrzWR hxccS0l1ygho7bBMLwqkWy87ombKFzpXx1zJFUeH+3qMV/pmRdIsmZ9a/HC5ArvgnQG7 zhFN38MK83bByyvOeWlGohXIw0BToFlCB7m72i4XZPhQFp9XFVLk+f8RARGhhDUx2oU4 GuvQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lp46z4pyjv78ITupA3bqlz9zVZdIathdr05qOlQawYQ=; b=8DEVmMmvzCk1KHIXGrd6xp2edB6BPmnYlkva2wSXE1hyOBcTTCpylFNj9MJAXEGDze d5iVYxZI3GG9jFhMnv7eVInsoew0r4lD9L6Zyi9eWp/WZUthbua7eZ3s1wP8oq+/Z+PA C7LPdqMoec393NIzwiM6n9eThtwbZPQ/7BatVhGFouNTD5P61I3yf20KcQWDZC05y2R8 wlrbYRKKsfykpKAMP4BtNxvtMLvyfkm4fppKwYAVWOyLRN6d8Eh8kLrI1NKI1PzfYTB9 zVjqD6GNw5rUI52ral1OJaqyTZd3OPcO9QP0R7wPWA/LHEBn4Ts0G5F58XQo7xFwEHeU sqrQ== X-Gm-Message-State: ACrzQf09xFHB0nDEAU8kMe54QQirTV7ygMwFgzR3oL5c86xX6q4fM9R8 UgAcpD76epoZposFMHRXD+fjTw== X-Google-Smtp-Source: AMsMyM42xyQckVaCdrFlrNGeU9lUP3HRdmIys/aYiS8fufOdxTTU/TE1B6fFmunsKq9hsT6fv6bvxw== X-Received: by 2002:a17:902:e890:b0:185:4ac7:9757 with SMTP id w16-20020a170902e89000b001854ac79757mr18291355plg.150.1666346576828; Fri, 21 Oct 2022 03:02:56 -0700 (PDT) Received: from anisinha-lenovo.ba.nuagenetworks.net ([203.212.245.138]) by smtp.googlemail.com with ESMTPSA id e14-20020a631e0e000000b0042fe1914e26sm12997375pge.37.2022.10.21.03.02.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Oct 2022 03:02:56 -0700 (PDT) From: Ani Sinha To: Ani Sinha Cc: Paolo Bonzini , Maydell Peter , John Snow , Thomas Huth , =?utf-8?q?Alex_Benn=C3=A9e?= , Igor Mammedov , Michael Tsirkin , qemu-devel@nongnu.org Subject: [PATCH v7 6/7] acpi/tests/avocado/bits/doc: add a doc file to describe the acpi bits test Date: Fri, 21 Oct 2022 15:21:07 +0530 Message-Id: <20221021095108.104843-7-ani@anisinha.ca> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221021095108.104843-1-ani@anisinha.ca> References: <20221021095108.104843-1-ani@anisinha.ca> MIME-Version: 1.0 Received-SPF: none client-ip=2607:f8b0:4864:20::1031; envelope-from=ani@anisinha.ca; helo=mail-pj1-x1031.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" A doc file is added under docs/devel that describes the purpose of the various test files and gives guidance to developers on where and how to make changes. Cc: Daniel P. Berrange" Cc: Paolo Bonzini Cc: Maydell Peter Cc: John Snow Cc: Thomas Huth Cc: Alex Bennée Cc: Igor Mammedov Cc: Michael Tsirkin Signed-off-by: Ani Sinha --- docs/devel/acpi-bits.rst | 145 +++++++++++++++++++++++++++++++++++++ docs/devel/index-build.rst | 1 + 2 files changed, 146 insertions(+) create mode 100644 docs/devel/acpi-bits.rst diff --git a/docs/devel/acpi-bits.rst b/docs/devel/acpi-bits.rst new file mode 100644 index 0000000000..c9564d871a --- /dev/null +++ b/docs/devel/acpi-bits.rst @@ -0,0 +1,145 @@ +============================================================================= +ACPI/SMBIOS avocado tests using biosbits +============================================================================= + +Biosbits is a software written by Josh Triplett that can be downloaded +from https://biosbits.org/. The github codebase can be found +`here `__. It is a software that executes +the bios components such as acpi and smbios tables directly through acpica +bios interpreter (a freely available C based library written by Intel, +downloadable from https://acpica.org/ and is included with biosbits) without an +operating system getting involved in between. +There are several advantages to directly testing the bios in a real physical +machine or VM as opposed to indirectly discovering bios issues through the +operating system. For one thing, the OSes tend to hide bios problems from the +end user. The other is that we have more control of what we wanted to test +and how by directly using acpica interpreter on top of the bios on a running +system. More details on the inspiration for developing biosbits and its real +life uses can be found in [#a]_ and [#b]_. +This directory contains tests written in python using avocado framework that +exercises the QEMU bios components using biosbits and reports test failures. +For QEMU, we maintain a fork of bios bits in gitlab along with all the +dependent submodules: +https://gitlab.com/qemu-project/biosbits-bits +This fork contains numerous fixes, a newer acpica and changes specific to +running this avocado QEMU tests using bits. The author of this document +is the sole maintainer of the QEMU fork of bios bits repo. + +Under the directory ``tests/avocado/``, ``acpi-bits.py`` is a QEMU avocado +test that drives all this. + +A brief description of the various test files follows. + +Under ``tests/avocado/`` as the root we have: + +:: + + ├── acpi-bits + │ ├── bits-config + │ │ └── bits-cfg.txt + │ ├── bits-tests + │ │ ├── smbios.py2 + │ │ ├── testacpi.py2 + │ │ └── testcpuid.py2 + │ └── README + ├── acpi-bits.py + +* ``tests/avocado``: + + ``acpi-bits.py``: + This is the main python avocado test script that generates a + biosbits iso. It then spawns a QEMU VM with it, collects the log and reports + test failures. This is the script one would be interested in if they wanted + to add or change some component of the log parsing, add a new command line + to alter how QEMU is spawned etc. Test writers typically would not need to + modify this script unless they wanted to enhance or change the log parsing + for their tests. In order to enable debugging, you can set **V=1** + environment variable. This enables verbose mode for the test and also dumps + the entire log from bios bits and more information in case failure happens. + + In order to run this test, please perform the following steps from the QEMU + build directory: + :: + + $ make check-venv (needed only the first time to create the venv) + $ ./tests/venv/bin/avocado run -t acpi tests/avocado + + The above will run all acpi avocado tests including this one. + In order to run the individual tests, perform the following: + :: + + $ ./tests/venv/bin/avocado run tests/avocado/acpi-bits.py --tap - + + The above will produce output in tap format. You can omit "--tap -" in the + end and it will produce output like the following: + :: + + $ ./tests/venv/bin/avocado run tests/avocado/acpi-bits.py + Fetching asset from tests/avocado/acpi-bits.py:AcpiBitsTest.test_acpi_smbios_bits + JOB ID : eab225724da7b64c012c65705dc2fa14ab1defef + JOB LOG : /home/anisinha/avocado/job-results/job-2022-10-10T17.58-eab2257/job.log + (1/1) tests/avocado/acpi-bits.py:AcpiBitsTest.test_acpi_smbios_bits: PASS (33.09 s) + RESULTS : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 | CANCEL 0 + JOB TIME : 39.22 s + + You can inspect the log file for more information about the run or in order + to diagnoze issues. If you pass V=1 in the environment, more diagnostic logs + would be found in the test log. + +* ``tests/avocado/acpi-bits/bits-config``: + + This location contains biosbits configuration files that determine how the + software runs the tests. + + ``bits-config.txt``: + This is the biosbits config file that determines what tests + or actions are performed by bits. The description of the config options are + provided in the file itself. + +* ``tests/avocado/acpi-bits/bits-tests``: + + This directory contains biosbits python based tests that are run from within + the biosbits environment in the spawned VM. New additions of test cases can + be made in the appropriate test file. For example, new acpi tests can go + into testacpi.py2 and one would call testsuite.add_test() to register the new + test so that it gets executed as a part of the ACPI tests. + It might be occasionally necessary to disable some subtests or add a new + test that belongs to a test suite not already present in this directory. To + do this, please clone the bits source from + https://gitlab.com/qemu-project/biosbits-bits/-/tree/qemu-bits. + Note that this is the "qemu-bits" branch and not the "bits" branch of the + repository. "qemu-bits" is the branch where we have made all the QEMU + specific enhancements and we must use the source from this branch only. + Copy the test suite/script that needs modification (addition of new tests + or disabling them) from python directory into this directory. For + example, in order to change cpuid related tests, copy the following + file into this directory and rename it with .py2 extension: + https://gitlab.com/qemu-project/biosbits-bits/-/blob/qemu-bits/python/testcpuid.py + Then make your additions and changes here. Therefore, the steps are: + + (a) Copy unmodified test script to this directory from bits source. + (b) Add a SPDX license header. + (c) Perform modifications to the test. + + Commits (a), (b) and (c) should go under separate commits so that the original + test script and the changes we have made are separated and clear. + + The test framework will then use your modified test script to run the test. + No further changes would be needed. Please check the logs to make sure that + appropriate changes have taken effect. + + The tests have an extension .py2 in order to indicate that: + + (a) They are python2.7 based scripts and not python 3 scripts. + (b) They are run from within the bios bits VM and is not subjected to QEMU + build/test python script maintainance and dependency resolutions. + (c) They need not be loaded by avocado framework when running tests. + + +Author: Ani Sinha + +References: +----------- +.. [#a] https://blog.linuxplumbersconf.org/2011/ocw/system/presentations/867/original/bits.pdf +.. [#b] https://www.youtube.com/watch?v=36QIepyUuhg + diff --git a/docs/devel/index-build.rst b/docs/devel/index-build.rst index 1002a533a6..57e8d39d98 100644 --- a/docs/devel/index-build.rst +++ b/docs/devel/index-build.rst @@ -11,6 +11,7 @@ the basics if you are adding new files and targets to the build. build-system kconfig testing + acpi-bits qtest ci qapi-code-gen