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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+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::32a; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32a.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=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: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , robhenry@microsoft.com, aaron@os.amperecomputing.com, cota@braap.org, Wainer dos Santos Moschetta , Cleber Rosa , kuhn.chenqun@huawei.com, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) 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 Benn=C3=A9e --- tests/acceptance/tcg_plugins.py | 103 ++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 tests/acceptance/tcg_plugins.py diff --git a/tests/acceptance/tcg_plugins.py b/tests/acceptance/tcg_plugins= .py new file mode 100644 index 0000000000..b512979769 --- /dev/null +++ b/tests/acceptance/tcg_plugins.py @@ -0,0 +1,103 @@ +# TCG Plugins tests +# +# These are a little more involved than the basic tests run by check-tcg. +# +# Copyright (c) 2021 Linaro +# +# Author: +# Alex Benn=C3=A9e +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import logging +import time +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 =3D 120 + KERNEL_COMMON_COMMAND_LINE =3D 'printk.time=3D1 panic=3D-1 ' + + def run_vm(self, kernel_path, kernel_command_line, + plugin, plugin_log, console_pattern, args): + + logger =3D logging.getLogger('plugin') + start_time =3D time.time() + vm =3D 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: + # fails if plugins not enabled + self.cancel("TCG Plugins not enabled") + + self.wait_for_console_pattern(console_pattern, vm) + elapsed =3D time.time() - start_time + logger.info('elapsed time %.2f sec' % elapsed) + # ensure logs are flushed + vm.shutdown() + return elapsed + + +class PluginKernelNormal(PluginKernelBase): + + def _grab_aarch64_kernel(self): + kernel_url =3D ('http://security.debian.org/' + 'debian-security/pool/updates/main/l/linux-signed-ar= m64/' + 'linux-image-4.19.0-12-arm64_4.19.152-1_arm64.deb') + kernel_sha1 =3D '2036c2792f80ac9c4ccaae742b2e0a28385b6010' + kernel_deb =3D self.fetch_asset(kernel_url, asset_hash=3Dkernel_sh= a1) + kernel_path =3D self.extract_from_deb(kernel_deb, + "/boot/vmlinuz-4.19.0-12-arm64= ") + return kernel_path + + def test_aarch64_virt_insn(self): + """ + :avocado: tags=3Daccel:tcg + :avocado: tags=3Darch:aarch64 + :avocado: tags=3Dmachine:virt + :avocado: tags=3Dcpu:cortex-a57 + """ + kernel_path =3D self._grab_aarch64_kernel() + kernel_command_line =3D (self.KERNEL_COMMON_COMMAND_LINE + + 'console=3DttyAMA0') + console_pattern =3D 'Kernel panic - not syncing: VFS:' + + plugin_log =3D tempfile.NamedTemporaryFile(mode=3D"r+t", prefix=3D= "plugin", + suffix=3D".log") + + self.run_vm(kernel_path, kernel_command_line, + "tests/plugin/libinsn.so", plugin_log.name, + console_pattern, + args=3D('-cpu', 'cortex-a53')) + + logger =3D logging.getLogger() + + with plugin_log as lf, \ + mmap.mmap(lf.fileno(), 0, access=3Dmmap.ACCESS_READ) as s: + + m =3D re.search(br"insns: (?P\d+)", s) + if "count" in m.groupdict(): + logger.debug("reported %d instructions", + int(m.group("count"))) + else: + logger.debug("Failed to find instruction count") + self.fail --=20 2.20.1