1# TCG Plugins tests 2# 3# These are a little more involved than the basic tests run by check-tcg. 4# 5# Copyright (c) 2021 Linaro 6# 7# Author: 8# Alex Bennée <alex.bennee@linaro.org> 9# 10# SPDX-License-Identifier: GPL-2.0-or-later 11 12import tempfile 13import mmap 14import re 15 16from boot_linux_console import LinuxKernelTest 17 18 19class PluginKernelBase(LinuxKernelTest): 20 """ 21 Boots a Linux kernel with a TCG plugin enabled. 22 """ 23 24 timeout = 120 25 KERNEL_COMMON_COMMAND_LINE = 'printk.time=1 panic=-1 ' 26 27 def run_vm(self, kernel_path, kernel_command_line, 28 plugin, plugin_log, console_pattern, args): 29 30 vm = self.get_vm() 31 vm.set_console() 32 vm.add_args('-kernel', kernel_path, 33 '-append', kernel_command_line, 34 '-plugin', plugin, 35 '-d', 'plugin', 36 '-D', plugin_log, 37 '-net', 'none', 38 '-no-reboot') 39 if args: 40 vm.add_args(*args) 41 42 try: 43 vm.launch() 44 except: 45 # TODO: probably fails because plugins not enabled but we 46 # can't currently probe for the feature. 47 self.cancel("TCG Plugins not enabled?") 48 49 self.wait_for_console_pattern(console_pattern, vm) 50 # ensure logs are flushed 51 vm.shutdown() 52 53 54class PluginKernelNormal(PluginKernelBase): 55 56 def _grab_aarch64_kernel(self): 57 kernel_url = ('http://security.debian.org/' 58 'debian-security/pool/updates/main/l/linux-signed-arm64/' 59 'linux-image-4.19.0-12-arm64_4.19.152-1_arm64.deb') 60 kernel_sha1 = '2036c2792f80ac9c4ccaae742b2e0a28385b6010' 61 kernel_deb = self.fetch_asset(kernel_url, asset_hash=kernel_sha1) 62 kernel_path = self.extract_from_deb(kernel_deb, 63 "/boot/vmlinuz-4.19.0-12-arm64") 64 return kernel_path 65 66 def test_aarch64_virt_insn(self): 67 """ 68 :avocado: tags=accel:tcg 69 :avocado: tags=arch:aarch64 70 :avocado: tags=machine:virt 71 :avocado: tags=cpu:cortex-a57 72 """ 73 kernel_path = self._grab_aarch64_kernel() 74 kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + 75 'console=ttyAMA0') 76 console_pattern = 'Kernel panic - not syncing: VFS:' 77 78 plugin_log = tempfile.NamedTemporaryFile(mode="r+t", prefix="plugin", 79 suffix=".log") 80 81 self.run_vm(kernel_path, kernel_command_line, 82 "tests/plugin/libinsn.so", plugin_log.name, 83 console_pattern, 84 args=('-cpu', 'cortex-a53')) 85 86 with plugin_log as lf, \ 87 mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s: 88 89 m = re.search(br"insns: (?P<count>\d+)", s) 90 if "count" not in m.groupdict(): 91 self.fail("Failed to find instruction count") 92