From 4c134d07b9e584d2713d7b5d0fb5fdb752ad120c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Alex=20Benn=C3=A9e?= Date: Sat, 13 Feb 2021 13:03:17 +0000 Subject: [PATCH] tests/acceptance: add a new set of tests to exercise plugins MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This is just a simple test to count the instructions executed by a kernel. However a later test will detect a failure condition when icount is enabled. Signed-off-by: Alex Bennée Tested-by: Wainer dos Santos Moschetta Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20210213130325.14781-16-alex.bennee@linaro.org> --- MAINTAINERS | 1 + tests/acceptance/tcg_plugins.py | 91 +++++++++++++++++++++++++++++++++ 2 files changed, 92 insertions(+) create mode 100644 tests/acceptance/tcg_plugins.py diff --git a/MAINTAINERS b/MAINTAINERS index 68ee271792..1d711e0cb8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2903,6 +2903,7 @@ S: Maintained F: docs/devel/tcg-plugins.rst F: plugins/ F: tests/plugin/ +F: tests/acceptance/tcg_plugins.py F: contrib/plugins/ AArch64 TCG target diff --git a/tests/acceptance/tcg_plugins.py b/tests/acceptance/tcg_plugins.py new file mode 100644 index 0000000000..adec40d3a5 --- /dev/null +++ b/tests/acceptance/tcg_plugins.py @@ -0,0 +1,91 @@ +# TCG Plugins tests +# +# These are a little more involved than the basic tests run by check-tcg. +# +# Copyright (c) 2021 Linaro +# +# Author: +# Alex Bennée +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import tempfile +import mmap +import re + +from boot_linux_console import LinuxKernelTest + + +class PluginKernelBase(LinuxKernelTest): + """ + Boots a Linux kernel with a TCG plugin enabled. + """ + + timeout = 120 + KERNEL_COMMON_COMMAND_LINE = 'printk.time=1 panic=-1 ' + + def run_vm(self, kernel_path, kernel_command_line, + plugin, plugin_log, console_pattern, args): + + vm = self.get_vm() + vm.set_console() + vm.add_args('-kernel', kernel_path, + '-append', kernel_command_line, + '-plugin', plugin, + '-d', 'plugin', + '-D', plugin_log, + '-net', 'none', + '-no-reboot') + if args: + vm.add_args(*args) + + try: + vm.launch() + except: + # TODO: probably fails because plugins not enabled but we + # can't currently probe for the feature. + self.cancel("TCG Plugins not enabled?") + + self.wait_for_console_pattern(console_pattern, vm) + # ensure logs are flushed + vm.shutdown() + + +class PluginKernelNormal(PluginKernelBase): + + def _grab_aarch64_kernel(self): + kernel_url = ('http://security.debian.org/' + 'debian-security/pool/updates/main/l/linux-signed-arm64/' + 'linux-image-4.19.0-12-arm64_4.19.152-1_arm64.deb') + kernel_sha1 = '2036c2792f80ac9c4ccaae742b2e0a28385b6010' + kernel_deb = self.fetch_asset(kernel_url, asset_hash=kernel_sha1) + kernel_path = self.extract_from_deb(kernel_deb, + "/boot/vmlinuz-4.19.0-12-arm64") + return kernel_path + + def test_aarch64_virt_insn(self): + """ + :avocado: tags=accel:tcg + :avocado: tags=arch:aarch64 + :avocado: tags=machine:virt + :avocado: tags=cpu:cortex-a57 + """ + kernel_path = self._grab_aarch64_kernel() + kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + + 'console=ttyAMA0') + console_pattern = 'Kernel panic - not syncing: VFS:' + + plugin_log = tempfile.NamedTemporaryFile(mode="r+t", prefix="plugin", + suffix=".log") + + self.run_vm(kernel_path, kernel_command_line, + "tests/plugin/libinsn.so", plugin_log.name, + console_pattern, + args=('-cpu', 'cortex-a53')) + + with plugin_log as lf, \ + mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s: + + m = re.search(br"insns: (?P\d+)", s) + if "count" not in m.groupdict(): + self.fail("Failed to find instruction count")