| 1 | #!/usr/bin/env python3 |
| 2 | # |
| 3 | # SPDX-License-Identifier: GPL-2.0-or-later |
| 4 | # |
| 5 | '''This test runs the vmstate-static-checker script with the current QEMU''' |
| 6 | |
| 7 | import subprocess |
| 8 | |
| 9 | from qemu_test import QemuSystemTest, skipFlakyTest |
| 10 | |
| 11 | |
| 12 | @skipFlakyTest("vmstate-static-checker can produce false positives") |
| 13 | class VmStateTest(QemuSystemTest): |
| 14 | ''' |
| 15 | This test helps to check whether there are problems between old |
| 16 | reference data and the current QEMU |
| 17 | ''' |
| 18 | |
| 19 | def test_vmstate_7_2(self): |
| 20 | '''Check reference data from QEMU v7.2''' |
| 21 | |
| 22 | target_machine = { |
| 23 | 'aarch64': 'virt-7.2', |
| 24 | 'm68k': 'virt-7.2', |
| 25 | 'ppc64': 'pseries-7.2', |
| 26 | 's390x': 's390-ccw-virtio-7.2', |
| 27 | 'x86_64': 'pc-q35-7.2', |
| 28 | } |
| 29 | self.set_machine(target_machine[self.arch]) |
| 30 | |
| 31 | # Run QEMU to get the current vmstate json file: |
| 32 | dst_json = self.scratch_file('dest.json') |
| 33 | self.log.info('Dumping vmstate from %s', self.qemu_bin) |
| 34 | cp = subprocess.run([self.qemu_bin, '-nodefaults', |
| 35 | '-M', target_machine[self.arch], |
| 36 | '-dump-vmstate', dst_json], |
| 37 | stdout=subprocess.PIPE, |
| 38 | stderr=subprocess.STDOUT, |
| 39 | text=True, check=True) |
| 40 | if cp.stdout: |
| 41 | self.log.info('QEMU output: %s', cp.stdout) |
| 42 | |
| 43 | # Check whether the old vmstate json file is still compatible: |
| 44 | src_json = self.data_file('..', 'data', 'vmstate-static-checker', |
| 45 | self.arch, |
| 46 | target_machine[self.arch] + '.json') |
| 47 | self.log.info('Comparing vmstate with %s', src_json) |
| 48 | checkerscript = self.data_file('..', '..', 'scripts', |
| 49 | 'vmstate-static-checker.py') |
| 50 | cp = subprocess.run([checkerscript, '-s', src_json, '-d', dst_json], |
| 51 | stdout=subprocess.PIPE, |
| 52 | stderr=subprocess.STDOUT, |
| 53 | text=True, check=False) |
| 54 | if cp.returncode != 0: |
| 55 | self.fail('Running vmstate-static-checker failed:\n' + cp.stdout + |
| 56 | '\nThis either means that there is a migration bug ' |
| 57 | 'that needs to be fixed, or\nvmstate-static-checker.py ' |
| 58 | 'needs to be improved (e.g. extend the changed_names\n' |
| 59 | 'in case a field has been renamed), or drop the ' |
| 60 | 'problematic field from\n' + src_json + |
| 61 | '\nin case the script cannot be fixed easily.') |
| 62 | if cp.stdout: |
| 63 | self.log.warning('vmstate-static-checker output: %s', cp.stdout) |
| 64 | |
| 65 | |
| 66 | if __name__ == '__main__': |
| 67 | QemuSystemTest.main() |