| #!/usr/bin/env python3 |
| # |
| # Basic validation of x86 versioned CPU models and CPU model aliases |
| # |
| # Copyright (c) 2019 Red Hat Inc |
| # |
| # Author: |
| # Eduardo Habkost <ehabkost@redhat.com> |
| # |
| # This library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Lesser General Public |
| # License as published by the Free Software Foundation; either |
| # version 2.1 of the License, or (at your option) any later version. |
| # |
| # This library is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # Lesser General Public License for more details. |
| # |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| # |
| |
| import re |
| |
| from qemu_test import QemuSystemTest |
| |
| class X86CPUModelAliases(QemuSystemTest): |
| """ |
| Validation of PC CPU model versions and CPU model aliases |
| """ |
| def validate_aliases(self, cpus): |
| for c in cpus.values(): |
| if 'alias-of' in c: |
| # all aliases must point to a valid CPU model name: |
| self.assertIn(c['alias-of'], cpus, |
| '%s.alias-of (%s) is not a valid CPU model name' % (c['name'], c['alias-of'])) |
| # aliases must not point to aliases |
| self.assertNotIn('alias-of', cpus[c['alias-of']], |
| '%s.alias-of (%s) points to another alias' % (c['name'], c['alias-of'])) |
| |
| # aliases must not be static |
| self.assertFalse(c['static']) |
| |
| def validate_variant_aliases(self, cpus): |
| # -noTSX, -IBRS and -IBPB variants of CPU models are special: |
| # they shouldn't have their own versions: |
| self.assertNotIn("Haswell-noTSX-v1", cpus, |
| "Haswell-noTSX shouldn't be versioned") |
| self.assertNotIn("Broadwell-noTSX-v1", cpus, |
| "Broadwell-noTSX shouldn't be versioned") |
| self.assertNotIn("Nehalem-IBRS-v1", cpus, |
| "Nehalem-IBRS shouldn't be versioned") |
| self.assertNotIn("Westmere-IBRS-v1", cpus, |
| "Westmere-IBRS shouldn't be versioned") |
| self.assertNotIn("SandyBridge-IBRS-v1", cpus, |
| "SandyBridge-IBRS shouldn't be versioned") |
| self.assertNotIn("IvyBridge-IBRS-v1", cpus, |
| "IvyBridge-IBRS shouldn't be versioned") |
| self.assertNotIn("Haswell-noTSX-IBRS-v1", cpus, |
| "Haswell-noTSX-IBRS shouldn't be versioned") |
| self.assertNotIn("Haswell-IBRS-v1", cpus, |
| "Haswell-IBRS shouldn't be versioned") |
| self.assertNotIn("Broadwell-noTSX-IBRS-v1", cpus, |
| "Broadwell-noTSX-IBRS shouldn't be versioned") |
| self.assertNotIn("Broadwell-IBRS-v1", cpus, |
| "Broadwell-IBRS shouldn't be versioned") |
| self.assertNotIn("Skylake-Client-IBRS-v1", cpus, |
| "Skylake-Client-IBRS shouldn't be versioned") |
| self.assertNotIn("Skylake-Server-IBRS-v1", cpus, |
| "Skylake-Server-IBRS shouldn't be versioned") |
| self.assertNotIn("EPYC-IBPB-v1", cpus, |
| "EPYC-IBPB shouldn't be versioned") |
| |
| def test_4_0_alias_compatibility(self): |
| """ |
| Check if pc-*-4.0 unversioned CPU model won't be reported as aliases |
| """ |
| self.set_machine('pc-i440fx-4.0') |
| # pc-*-4.0 won't expose non-versioned CPU models as aliases |
| # We do this to help management software to keep compatibility |
| # with older QEMU versions that didn't have the versioned CPU model |
| self.vm.add_args('-S') |
| self.vm.launch() |
| cpus = dict((m['name'], m) for m in |
| self.vm.cmd('query-cpu-definitions')) |
| |
| self.assertFalse(cpus['Cascadelake-Server']['static'], |
| 'unversioned Cascadelake-Server CPU model must not be static') |
| self.assertNotIn('alias-of', cpus['Cascadelake-Server'], |
| 'Cascadelake-Server must not be an alias') |
| self.assertNotIn('alias-of', cpus['Cascadelake-Server-v1'], |
| 'Cascadelake-Server-v1 must not be an alias') |
| |
| self.assertFalse(cpus['qemu64']['static'], |
| 'unversioned qemu64 CPU model must not be static') |
| self.assertNotIn('alias-of', cpus['qemu64'], |
| 'qemu64 must not be an alias') |
| self.assertNotIn('alias-of', cpus['qemu64-v1'], |
| 'qemu64-v1 must not be an alias') |
| |
| self.validate_variant_aliases(cpus) |
| |
| # On pc-*-4.0, no CPU model should be reported as an alias: |
| for name,c in cpus.items(): |
| self.assertNotIn('alias-of', c, "%s shouldn't be an alias" % (name)) |
| |
| def test_4_1_alias(self): |
| """ |
| Check if unversioned CPU model is an alias pointing to right version |
| """ |
| self.set_machine('pc-i440fx-4.1') |
| self.vm.add_args('-S') |
| self.vm.launch() |
| |
| cpus = dict((m['name'], m) for m in |
| self.vm.cmd('query-cpu-definitions')) |
| |
| self.assertFalse(cpus['Cascadelake-Server']['static'], |
| 'unversioned Cascadelake-Server CPU model must not be static') |
| self.assertEqual(cpus['Cascadelake-Server'].get('alias-of'), |
| 'Cascadelake-Server-v1', |
| 'Cascadelake-Server must be an alias of Cascadelake-Server-v1') |
| self.assertNotIn('alias-of', cpus['Cascadelake-Server-v1'], |
| 'Cascadelake-Server-v1 must not be an alias') |
| |
| self.assertFalse(cpus['qemu64']['static'], |
| 'unversioned qemu64 CPU model must not be static') |
| self.assertEqual(cpus['qemu64'].get('alias-of'), 'qemu64-v1', |
| 'qemu64 must be an alias of qemu64-v1') |
| self.assertNotIn('alias-of', cpus['qemu64-v1'], |
| 'qemu64-v1 must not be an alias') |
| |
| self.validate_variant_aliases(cpus) |
| |
| # On pc-*-4.1, -noTSX and -IBRS models should be aliases: |
| self.assertEqual(cpus["Haswell"].get('alias-of'), |
| "Haswell-v1", |
| "Haswell must be an alias") |
| self.assertEqual(cpus["Haswell-noTSX"].get('alias-of'), |
| "Haswell-v2", |
| "Haswell-noTSX must be an alias") |
| self.assertEqual(cpus["Haswell-IBRS"].get('alias-of'), |
| "Haswell-v3", |
| "Haswell-IBRS must be an alias") |
| self.assertEqual(cpus["Haswell-noTSX-IBRS"].get('alias-of'), |
| "Haswell-v4", |
| "Haswell-noTSX-IBRS must be an alias") |
| |
| self.assertEqual(cpus["Broadwell"].get('alias-of'), |
| "Broadwell-v1", |
| "Broadwell must be an alias") |
| self.assertEqual(cpus["Broadwell-noTSX"].get('alias-of'), |
| "Broadwell-v2", |
| "Broadwell-noTSX must be an alias") |
| self.assertEqual(cpus["Broadwell-IBRS"].get('alias-of'), |
| "Broadwell-v3", |
| "Broadwell-IBRS must be an alias") |
| self.assertEqual(cpus["Broadwell-noTSX-IBRS"].get('alias-of'), |
| "Broadwell-v4", |
| "Broadwell-noTSX-IBRS must be an alias") |
| |
| self.assertEqual(cpus["Nehalem"].get('alias-of'), |
| "Nehalem-v1", |
| "Nehalem must be an alias") |
| self.assertEqual(cpus["Nehalem-IBRS"].get('alias-of'), |
| "Nehalem-v2", |
| "Nehalem-IBRS must be an alias") |
| |
| self.assertEqual(cpus["Westmere"].get('alias-of'), |
| "Westmere-v1", |
| "Westmere must be an alias") |
| self.assertEqual(cpus["Westmere-IBRS"].get('alias-of'), |
| "Westmere-v2", |
| "Westmere-IBRS must be an alias") |
| |
| self.assertEqual(cpus["SandyBridge"].get('alias-of'), |
| "SandyBridge-v1", |
| "SandyBridge must be an alias") |
| self.assertEqual(cpus["SandyBridge-IBRS"].get('alias-of'), |
| "SandyBridge-v2", |
| "SandyBridge-IBRS must be an alias") |
| |
| self.assertEqual(cpus["IvyBridge"].get('alias-of'), |
| "IvyBridge-v1", |
| "IvyBridge must be an alias") |
| self.assertEqual(cpus["IvyBridge-IBRS"].get('alias-of'), |
| "IvyBridge-v2", |
| "IvyBridge-IBRS must be an alias") |
| |
| self.assertEqual(cpus["Skylake-Client"].get('alias-of'), |
| "Skylake-Client-v1", |
| "Skylake-Client must be an alias") |
| self.assertEqual(cpus["Skylake-Client-IBRS"].get('alias-of'), |
| "Skylake-Client-v2", |
| "Skylake-Client-IBRS must be an alias") |
| |
| self.assertEqual(cpus["Skylake-Server"].get('alias-of'), |
| "Skylake-Server-v1", |
| "Skylake-Server must be an alias") |
| self.assertEqual(cpus["Skylake-Server-IBRS"].get('alias-of'), |
| "Skylake-Server-v2", |
| "Skylake-Server-IBRS must be an alias") |
| |
| self.assertEqual(cpus["EPYC"].get('alias-of'), |
| "EPYC-v1", |
| "EPYC must be an alias") |
| self.assertEqual(cpus["EPYC-IBPB"].get('alias-of'), |
| "EPYC-v2", |
| "EPYC-IBPB must be an alias") |
| |
| self.validate_aliases(cpus) |
| |
| def test_none_alias(self): |
| """ |
| Check if unversioned CPU model is an alias pointing to some version |
| """ |
| self.set_machine('none') |
| self.vm.add_args('-S') |
| self.vm.launch() |
| |
| cpus = dict((m['name'], m) for m in |
| self.vm.cmd('query-cpu-definitions')) |
| |
| self.assertFalse(cpus['Cascadelake-Server']['static'], |
| 'unversioned Cascadelake-Server CPU model must not be static') |
| self.assertTrue(re.match('Cascadelake-Server-v[0-9]+', cpus['Cascadelake-Server']['alias-of']), |
| 'Cascadelake-Server must be an alias of versioned CPU model') |
| self.assertNotIn('alias-of', cpus['Cascadelake-Server-v1'], |
| 'Cascadelake-Server-v1 must not be an alias') |
| |
| self.assertFalse(cpus['qemu64']['static'], |
| 'unversioned qemu64 CPU model must not be static') |
| self.assertTrue(re.match('qemu64-v[0-9]+', cpus['qemu64']['alias-of']), |
| 'qemu64 must be an alias of versioned CPU model') |
| self.assertNotIn('alias-of', cpus['qemu64-v1'], |
| 'qemu64-v1 must not be an alias') |
| |
| self.validate_aliases(cpus) |
| |
| |
| class CascadelakeArchCapabilities(QemuSystemTest): |
| """ |
| Validation of Cascadelake arch-capabilities |
| """ |
| def get_cpu_prop(self, prop): |
| cpu_path = self.vm.cmd('query-cpus-fast')[0].get('qom-path') |
| return self.vm.cmd('qom-get', path=cpu_path, property=prop) |
| |
| def test_4_1(self): |
| self.set_machine('pc-i440fx-4.1') |
| # machine-type only: |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server,x-force-features=on,check=off,' |
| 'enforce=off') |
| self.vm.launch() |
| self.assertFalse(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.1 + Cascadelake-Server should not have arch-capabilities') |
| |
| def test_4_0(self): |
| self.set_machine('pc-i440fx-4.0') |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server,x-force-features=on,check=off,' |
| 'enforce=off') |
| self.vm.launch() |
| self.assertFalse(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.0 + Cascadelake-Server should not have arch-capabilities') |
| |
| def test_set_4_0(self): |
| self.set_machine('pc-i440fx-4.0') |
| # command line must override machine-type if CPU model is not versioned: |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server,x-force-features=on,check=off,' |
| 'enforce=off,+arch-capabilities') |
| self.vm.launch() |
| self.assertTrue(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.0 + Cascadelake-Server,+arch-capabilities should have arch-capabilities') |
| |
| def test_unset_4_1(self): |
| self.set_machine('pc-i440fx-4.1') |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server,x-force-features=on,check=off,' |
| 'enforce=off,-arch-capabilities') |
| self.vm.launch() |
| self.assertFalse(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.1 + Cascadelake-Server,-arch-capabilities should not have arch-capabilities') |
| |
| def test_v1_4_0(self): |
| self.set_machine('pc-i440fx-4.0') |
| # versioned CPU model overrides machine-type: |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server-v1,x-force-features=on,check=off,' |
| 'enforce=off') |
| self.vm.launch() |
| self.assertFalse(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.0 + Cascadelake-Server-v1 should not have arch-capabilities') |
| |
| def test_v2_4_0(self): |
| self.set_machine('pc-i440fx-4.0') |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server-v2,x-force-features=on,check=off,' |
| 'enforce=off') |
| self.vm.launch() |
| self.assertTrue(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.0 + Cascadelake-Server-v2 should have arch-capabilities') |
| |
| def test_v1_set_4_0(self): |
| self.set_machine('pc-i440fx-4.0') |
| # command line must override machine-type and versioned CPU model: |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server-v1,x-force-features=on,check=off,' |
| 'enforce=off,+arch-capabilities') |
| self.vm.launch() |
| self.assertTrue(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.0 + Cascadelake-Server-v1,+arch-capabilities should have arch-capabilities') |
| |
| def test_v2_unset_4_1(self): |
| self.set_machine('pc-i440fx-4.1') |
| self.vm.add_args('-S') |
| self.set_vm_arg('-cpu', |
| 'Cascadelake-Server-v2,x-force-features=on,check=off,' |
| 'enforce=off,-arch-capabilities') |
| self.vm.launch() |
| self.assertFalse(self.get_cpu_prop('arch-capabilities'), |
| 'pc-i440fx-4.1 + Cascadelake-Server-v2,-arch-capabilities should not have arch-capabilities') |
| |
| if __name__ == '__main__': |
| QemuSystemTest.main() |
