| #!/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 = { |
| '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 = self.scratch_file('dest.json') |
| self.log.info('Dumping vmstate from %s', self.qemu_bin) |
| cp = subprocess.run([self.qemu_bin, '-nodefaults', |
| '-M', target_machine[self.arch], |
| '-dump-vmstate', dst_json], |
| stdout=subprocess.PIPE, |
| stderr=subprocess.STDOUT, |
| text=True, check=True) |
| if cp.stdout: |
| self.log.info('QEMU output: %s', cp.stdout) |
| |
| # Check whether the old vmstate json file is still compatible: |
| src_json = self.data_file('..', 'data', 'vmstate-static-checker', |
| self.arch, |
| target_machine[self.arch] + '.json') |
| self.log.info('Comparing vmstate with %s', src_json) |
| checkerscript = self.data_file('..', '..', 'scripts', |
| 'vmstate-static-checker.py') |
| cp = subprocess.run([checkerscript, '-s', src_json, '-d', dst_json], |
| stdout=subprocess.PIPE, |
| stderr=subprocess.STDOUT, |
| text=True, check=False) |
| if cp.returncode != 0: |
| self.fail('Running vmstate-static-checker failed:\n' + cp.stdout + |
| '\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.stdout) |
| |
| |
| if __name__ == '__main__': |
| QemuSystemTest.main() |
