On 2/10/21 7:10 PM, Alex Bennée wrote:
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 <alex.ben...@linaro.org>
Message-Id: <20210209182749.31323-7-alex.ben...@linaro.org>
---
tests/acceptance/tcg_plugins.py | 103 ++++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)
create mode 100644 tests/acceptance/tcg_plugins.py
Configured with
./configure --enable-tcg --enable-plugins --disable-docs
--target-list=aarch64-softmmu
and worked fine here, so
Tested-by: Wainer dos Santos Moschetta <waine...@redhat.com>
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 Bennée <alex.ben...@linaro.org>
+#
+# 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 = 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):
+
+ logger = logging.getLogger('plugin')
+ start_time = time.time()
+ 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:
+ # fails if plugins not enabled
+ self.cancel("TCG Plugins not enabled")
+
+ self.wait_for_console_pattern(console_pattern, vm)
+ elapsed = 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 = ('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'))
+
+ logger = logging.getLogger()
+
+ with plugin_log as lf, \
+ mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s:
+
+ m = re.search(br"insns: (?P<count>\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
