a7c6e562e6
When we cleaned up argument handling the test was missed.
Fixes: 5ae589faad ("tests/plugins/mem: introduce "track" arg and make args not positional")
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211129140932.4115115-4-alex.bennee@linaro.org>
148 lines
5.2 KiB
Python
148 lines
5.2 KiB
Python
# 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.bennee@linaro.org>
|
|
#
|
|
# 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=None):
|
|
|
|
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-a53
|
|
"""
|
|
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)
|
|
|
|
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" not in m.groupdict():
|
|
self.fail("Failed to find instruction count")
|
|
|
|
def test_aarch64_virt_insn_icount(self):
|
|
"""
|
|
:avocado: tags=accel:tcg
|
|
:avocado: tags=arch:aarch64
|
|
:avocado: tags=machine:virt
|
|
:avocado: tags=cpu:cortex-a53
|
|
"""
|
|
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=('-icount', 'shift=1'))
|
|
|
|
with plugin_log as lf, \
|
|
mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s:
|
|
m = re.search(br"detected repeat execution @ (?P<addr>0x[0-9A-Fa-f]+)", s)
|
|
if m is not None and "addr" in m.groupdict():
|
|
self.fail("detected repeated instructions")
|
|
|
|
def test_aarch64_virt_mem_icount(self):
|
|
"""
|
|
:avocado: tags=accel:tcg
|
|
:avocado: tags=arch:aarch64
|
|
:avocado: tags=machine:virt
|
|
:avocado: tags=cpu:cortex-a53
|
|
"""
|
|
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/libmem.so,inline=true,callback=true", plugin_log.name,
|
|
console_pattern,
|
|
args=('-icount', 'shift=1'))
|
|
|
|
with plugin_log as lf, \
|
|
mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s:
|
|
m = re.findall(br"mem accesses: (?P<count>\d+)", s)
|
|
if m is None or len(m) != 2:
|
|
self.fail("no memory access counts found")
|
|
else:
|
|
inline = int(m[0])
|
|
callback = int(m[1])
|
|
if inline != callback:
|
|
self.fail("mismatched access counts")
|