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>
---
tests/acceptance/tcg_plugins.py | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/tests/acceptance/tcg_plugins.py b/tests/acceptance/tcg_plugins.py
index b1ba10498f..c21bf9e52a 100644
--- a/tests/acceptance/tcg_plugins.py
+++ b/tests/acceptance/tcg_plugins.py
@@ -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")
--
2.20.1