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charset="utf-8" From: Thomas Huth We've got this nice vmstate-static-checker.py script that can help to detect screw-ups in the migration states. Unfortunately, it's currently only run manually, which can be cumbersome. Let's run it from a functional test automatically with the reference data from QEMU 7.2, so that we get at least a basic coverage here. Since the test can fail when the checker script detects a false positive, mark the test with a skipFlakyTest decorator for now, so that it is only run when the user also set the QEMU_TEST_FLAKY_TESTS environment variable. Acked-by: Fabiano Rosas Signed-off-by: Thomas Huth Message-ID: <20250912100755.316518-5-thuth@redhat.com> --- MAINTAINERS | 1 + tests/functional/aarch64/meson.build | 1 + tests/functional/generic/test_vmstate.py | 67 ++++++++++++++++++++++++ tests/functional/m68k/meson.build | 4 ++ tests/functional/ppc64/meson.build | 1 + tests/functional/s390x/meson.build | 4 ++ tests/functional/x86_64/meson.build | 3 +- 7 files changed, 80 insertions(+), 1 deletion(-) create mode 100755 tests/functional/generic/test_vmstate.py diff --git a/MAINTAINERS b/MAINTAINERS index 24c061aff35..3d1f88a4bbe 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3613,6 +3613,7 @@ F: migration/ F: scripts/vmstate-static-checker.py F: tests/functional/migration.py F: tests/functional/*/*migration.py +F: tests/functional/generic/test_vmstate.py F: tests/functional/x86_64/test_bad_vmstate.py F: tests/data/vmstate-static-checker/ F: tests/qtest/migration/ diff --git a/tests/functional/aarch64/meson.build b/tests/functional/aarch6= 4/meson.build index 04846c6eb18..5ad52f93e1d 100644 --- a/tests/functional/aarch64/meson.build +++ b/tests/functional/aarch64/meson.build @@ -19,6 +19,7 @@ test_aarch64_timeouts =3D { =20 tests_aarch64_system_quick =3D [ 'migration', + 'vmstate', ] =20 tests_aarch64_system_thorough =3D [ diff --git a/tests/functional/generic/test_vmstate.py b/tests/functional/ge= neric/test_vmstate.py new file mode 100755 index 00000000000..387ff542426 --- /dev/null +++ b/tests/functional/generic/test_vmstate.py @@ -0,0 +1,67 @@ +#!/usr/bin/env python3 +# +# SPDX-License-Identifier: GPL-2.0-or-later +# +'''This test runs the vmstate-static-checker script with the current QEMU'= '' + +import subprocess + +from qemu_test import QemuSystemTest, skipFlakyTest + + +@skipFlakyTest("vmstate-static-checker can produce false positives") +class VmStateTest(QemuSystemTest): + ''' + This test helps to check whether there are problems between old + reference data and the current QEMU + ''' + + def test_vmstate_7_2(self): + '''Check reference data from QEMU v7.2''' + + target_machine =3D { + 'aarch64': 'virt-7.2', + 'm68k': 'virt-7.2', + 'ppc64': 'pseries-7.2', + 's390x': 's390-ccw-virtio-7.2', + 'x86_64': 'pc-q35-7.2', + } + self.set_machine(target_machine[self.arch]) + + # Run QEMU to get the current vmstate json file: + dst_json =3D self.scratch_file('dest.json') + self.log.info('Dumping vmstate from %s', self.qemu_bin) + cp =3D subprocess.run([self.qemu_bin, '-nodefaults', + '-M', target_machine[self.arch], + '-dump-vmstate', dst_json], + stdout=3Dsubprocess.PIPE, + stderr=3Dsubprocess.STDOUT, + text=3DTrue, check=3DTrue) + if cp.stdout: + self.log.info('QEMU output: %s', cp.stdout) + + # Check whether the old vmstate json file is still compatible: + src_json =3D self.data_file('..', 'data', 'vmstate-static-checker', + self.arch, + target_machine[self.arch] + '.json') + self.log.info('Comparing vmstate with %s', src_json) + checkerscript =3D self.data_file('..', '..', 'scripts', + 'vmstate-static-checker.py') + cp =3D subprocess.run([checkerscript, '-s', src_json, '-d', dst_js= on], + stdout=3Dsubprocess.PIPE, + stderr=3Dsubprocess.STDOUT, + text=3DTrue, check=3DFalse) + if cp.returncode !=3D 0: + self.fail('Running vmstate-static-checker failed:\n' + cp.stdo= ut + + '\nThis either means that there is a migration bug ' + 'that needs to be fixed, or\nvmstate-static-checker.= py ' + 'needs to be improved (e.g. extend the changed_names= \n' + 'in case a field has been renamed), or drop the ' + 'problematic field from\n' + src_json + + '\nin case the script cannot be fixed easily.') + if cp.stdout: + self.log.warning('vmstate-static-checker output: %s', cp.stdou= t) + + +if __name__ =3D=3D '__main__': + QemuSystemTest.main() diff --git a/tests/functional/m68k/meson.build b/tests/functional/m68k/meso= n.build index e29044a6d73..679faaf86d6 100644 --- a/tests/functional/m68k/meson.build +++ b/tests/functional/m68k/meson.build @@ -1,5 +1,9 @@ # SPDX-License-Identifier: GPL-2.0-or-later =20 +tests_m68k_system_quick =3D [ + 'vmstate', +] + tests_m68k_system_thorough =3D [ 'mcf5208evb', 'nextcube', diff --git a/tests/functional/ppc64/meson.build b/tests/functional/ppc64/me= son.build index 842fe0fc715..1fa0a70f7ed 100644 --- a/tests/functional/ppc64/meson.build +++ b/tests/functional/ppc64/meson.build @@ -11,6 +11,7 @@ test_ppc64_timeouts =3D { =20 tests_ppc64_system_quick =3D [ 'migration', + 'vmstate', ] =20 tests_ppc64_system_thorough =3D [ diff --git a/tests/functional/s390x/meson.build b/tests/functional/s390x/me= son.build index 030b116039c..70cd36e2913 100644 --- a/tests/functional/s390x/meson.build +++ b/tests/functional/s390x/meson.build @@ -4,6 +4,10 @@ test_s390x_timeouts =3D { 'ccw_virtio' : 420, } =20 +tests_s390x_system_quick =3D [ + 'vmstate', +] + tests_s390x_system_thorough =3D [ 'ccw_virtio', 'pxelinux', diff --git a/tests/functional/x86_64/meson.build b/tests/functional/x86_64/= meson.build index ef12ac43b37..967426c30c3 100644 --- a/tests/functional/x86_64/meson.build +++ b/tests/functional/x86_64/meson.build @@ -14,10 +14,11 @@ tests_x86_64_system_quick =3D [ 'cpu_model_versions', 'cpu_queries', 'mem_addr_space', + 'memlock', 'migration', 'pc_cpu_hotplug_props', 'virtio_version', - 'memlock', + 'vmstate', ] =20 tests_x86_64_system_thorough =3D [ --=20 2.51.0