mirror of https://gitlab.com/qemu-project/qemu
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
116 lines
3.7 KiB
Python
116 lines
3.7 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# 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 qemu_test import LinuxKernelTest, Asset
|
|
|
|
|
|
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):
|
|
|
|
ASSET_KERNEL = Asset(
|
|
('https://storage.tuxboot.com/20230331/arm64/Image'),
|
|
'ce95a7101a5fecebe0fe630deee6bd97b32ba41bc8754090e9ad8961ea8674c7')
|
|
|
|
def test_aarch64_virt_insn(self):
|
|
self.set_machine('virt')
|
|
self.cpu='cortex-a53'
|
|
kernel_path = self.ASSET_KERNEL.fetch()
|
|
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/tcg/plugins/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")
|
|
else:
|
|
count = int(m.group("count"))
|
|
self.log.info(f"Counted: {count} instructions")
|
|
|
|
|
|
def test_aarch64_virt_insn_icount(self):
|
|
self.set_machine('virt')
|
|
self.cpu='cortex-a53'
|
|
kernel_path = self.ASSET_KERNEL.fetch()
|
|
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/tcg/plugins/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"insns: (?P<count>\d+)", s)
|
|
if "count" not in m.groupdict():
|
|
self.fail("Failed to find instruction count")
|
|
else:
|
|
count = int(m.group("count"))
|
|
self.log.info(f"Counted: {count} instructions")
|
|
|
|
if __name__ == '__main__':
|
|
LinuxKernelTest.main()
|