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tests/acceptance: add a memory callback check

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This test makes sure that the inline and callback based memory checks
count the same number of accesses.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210213130325.14781-24-alex.bennee@linaro.org>
This commit is contained in:
Alex Bennée 2021-02-13 13:03:25 +00:00
parent 0eca92e299
commit df55e2a701
1 changed files with 31 additions and 0 deletions
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31
tests/acceptance/tcg_plugins.py
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@ -115,3 +115,34 @@ class PluginKernelNormal(PluginKernelBase):
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-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/libmem.so,arg=both", plugin_log.name,
console_pattern,
args=('-cpu', 'cortex-a53', '-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")