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 7import subprocess 8 9from qemu_test import QemuSystemTest, skipFlakyTest 10 11 12@skipFlakyTest("vmstate-static-checker can produce false positives") 13class 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 66if __name__ == '__main__': 67 QemuSystemTest.main() 68