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1b4c136b78
You cannot use plugins without TCG enabled so it doesn't make sense to have them separated off in the test directory structure. While we are at it rename the directory to plugins to reflect the plural nature of the directory and match up with contrib/plugins. Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20240729144414.830369-10-alex.bennee@linaro.org>
123 lines
4 KiB
Python
123 lines
4 KiB
Python
# TCG Plugins tests
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#
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# These are a little more involved than the basic tests run by check-tcg.
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#
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# Copyright (c) 2021 Linaro
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#
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# Author:
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# Alex Bennée <alex.bennee@linaro.org>
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#
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# SPDX-License-Identifier: GPL-2.0-or-later
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import tempfile
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import mmap
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import re
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from boot_linux_console import LinuxKernelTest
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class PluginKernelBase(LinuxKernelTest):
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"""
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Boots a Linux kernel with a TCG plugin enabled.
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"""
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timeout = 120
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KERNEL_COMMON_COMMAND_LINE = 'printk.time=1 panic=-1 '
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def run_vm(self, kernel_path, kernel_command_line,
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plugin, plugin_log, console_pattern, args=None):
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vm = self.get_vm()
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vm.set_console()
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vm.add_args('-kernel', kernel_path,
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'-append', kernel_command_line,
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'-plugin', plugin,
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'-d', 'plugin',
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'-D', plugin_log,
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'-net', 'none',
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'-no-reboot')
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if args:
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vm.add_args(*args)
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try:
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vm.launch()
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except:
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# TODO: probably fails because plugins not enabled but we
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# can't currently probe for the feature.
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self.cancel("TCG Plugins not enabled?")
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self.wait_for_console_pattern(console_pattern, vm)
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# ensure logs are flushed
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vm.shutdown()
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class PluginKernelNormal(PluginKernelBase):
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def _grab_aarch64_kernel(self):
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kernel_url = ('https://storage.tuxboot.com/20230331/arm64/Image')
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kernel_sha256 = 'ce95a7101a5fecebe0fe630deee6bd97b32ba41bc8754090e9ad8961ea8674c7'
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kernel_path = self.fetch_asset(kernel_url,
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asset_hash=kernel_sha256,
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algorithm = "sha256")
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return kernel_path
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def test_aarch64_virt_insn(self):
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"""
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:avocado: tags=accel:tcg
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:avocado: tags=arch:aarch64
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:avocado: tags=machine:virt
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:avocado: tags=cpu:cortex-a53
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"""
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kernel_path = self._grab_aarch64_kernel()
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kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
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'console=ttyAMA0')
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console_pattern = 'Kernel panic - not syncing: VFS:'
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plugin_log = tempfile.NamedTemporaryFile(mode="r+t", prefix="plugin",
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suffix=".log")
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self.run_vm(kernel_path, kernel_command_line,
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"tests/tcg/plugins/libinsn.so", plugin_log.name,
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console_pattern)
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with plugin_log as lf, \
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mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s:
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m = re.search(br"insns: (?P<count>\d+)", s)
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if "count" not in m.groupdict():
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self.fail("Failed to find instruction count")
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else:
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count = int(m.group("count"))
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self.log.info(f"Counted: {count} instructions")
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def test_aarch64_virt_insn_icount(self):
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"""
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:avocado: tags=accel:tcg
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:avocado: tags=arch:aarch64
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:avocado: tags=machine:virt
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:avocado: tags=cpu:cortex-a53
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"""
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kernel_path = self._grab_aarch64_kernel()
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kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
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'console=ttyAMA0')
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console_pattern = 'Kernel panic - not syncing: VFS:'
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plugin_log = tempfile.NamedTemporaryFile(mode="r+t", prefix="plugin",
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suffix=".log")
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self.run_vm(kernel_path, kernel_command_line,
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"tests/tcg/plugins/libinsn.so", plugin_log.name,
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console_pattern,
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args=('-icount', 'shift=1'))
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with plugin_log as lf, \
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mmap.mmap(lf.fileno(), 0, access=mmap.ACCESS_READ) as s:
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m = re.search(br"insns: (?P<count>\d+)", s)
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if "count" not in m.groupdict():
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self.fail("Failed to find instruction count")
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else:
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count = int(m.group("count"))
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self.log.info(f"Counted: {count} instructions")
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