i386: Make unversioned CPU models be aliases

This will make unversioned CPU models behavior depend on the
machine type:

* "pc-*-4.0" and older will not report them as aliases.
  This is done to keep compatibility with older QEMU versions
  after management software starts translating aliases.

* "pc-*-4.1" will translate unversioned CPU models to -v1.
  This is done to keep compatibility with existing management
  software, that still relies on CPU model runnability promises.

* "none" will translate unversioned CPU models to their latest
  version.  This is planned become the default in future machine
  types (probably in pc-*-4.3).

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190628002844.24894-8-ehabkost@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Eduardo Habkost 2019-06-27 21:28:42 -03:00
parent 53db89d93b
commit 0788a56bd1
7 changed files with 203 additions and 1 deletions

View file

@ -103,3 +103,129 @@ class X86CPUModelAliases(avocado_qemu.Test):
# 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.vm.add_args('-S')
self.vm.set_machine('pc-i440fx-4.1')
self.vm.launch()
cpus = dict((m['name'], m) for m in self.vm.command('query-cpu-definitions'))
self.assertFalse(cpus['Cascadelake-Server']['static'],
'unversioned Cascadelake-Server CPU model must not be static')
self.assertEquals(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.assertEquals(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.assertEquals(cpus["Haswell"].get('alias-of'),
"Haswell-v1",
"Haswell must be an alias")
self.assertEquals(cpus["Haswell-noTSX"].get('alias-of'),
"Haswell-v2",
"Haswell-noTSX must be an alias")
self.assertEquals(cpus["Haswell-IBRS"].get('alias-of'),
"Haswell-v3",
"Haswell-IBRS must be an alias")
self.assertEquals(cpus["Haswell-noTSX-IBRS"].get('alias-of'),
"Haswell-v4",
"Haswell-noTSX-IBRS must be an alias")
self.assertEquals(cpus["Broadwell"].get('alias-of'),
"Broadwell-v1",
"Broadwell must be an alias")
self.assertEquals(cpus["Broadwell-noTSX"].get('alias-of'),
"Broadwell-v2",
"Broadwell-noTSX must be an alias")
self.assertEquals(cpus["Broadwell-IBRS"].get('alias-of'),
"Broadwell-v3",
"Broadwell-IBRS must be an alias")
self.assertEquals(cpus["Broadwell-noTSX-IBRS"].get('alias-of'),
"Broadwell-v4",
"Broadwell-noTSX-IBRS must be an alias")
self.assertEquals(cpus["Nehalem"].get('alias-of'),
"Nehalem-v1",
"Nehalem must be an alias")
self.assertEquals(cpus["Nehalem-IBRS"].get('alias-of'),
"Nehalem-v2",
"Nehalem-IBRS must be an alias")
self.assertEquals(cpus["Westmere"].get('alias-of'),
"Westmere-v1",
"Westmere must be an alias")
self.assertEquals(cpus["Westmere-IBRS"].get('alias-of'),
"Westmere-v2",
"Westmere-IBRS must be an alias")
self.assertEquals(cpus["SandyBridge"].get('alias-of'),
"SandyBridge-v1",
"SandyBridge must be an alias")
self.assertEquals(cpus["SandyBridge-IBRS"].get('alias-of'),
"SandyBridge-v2",
"SandyBridge-IBRS must be an alias")
self.assertEquals(cpus["IvyBridge"].get('alias-of'),
"IvyBridge-v1",
"IvyBridge must be an alias")
self.assertEquals(cpus["IvyBridge-IBRS"].get('alias-of'),
"IvyBridge-v2",
"IvyBridge-IBRS must be an alias")
self.assertEquals(cpus["Skylake-Client"].get('alias-of'),
"Skylake-Client-v1",
"Skylake-Client must be an alias")
self.assertEquals(cpus["Skylake-Client-IBRS"].get('alias-of'),
"Skylake-Client-v2",
"Skylake-Client-IBRS must be an alias")
self.assertEquals(cpus["Skylake-Server"].get('alias-of'),
"Skylake-Server-v1",
"Skylake-Server must be an alias")
self.assertEquals(cpus["Skylake-Server-IBRS"].get('alias-of'),
"Skylake-Server-v2",
"Skylake-Server-IBRS must be an alias")
self.assertEquals(cpus["EPYC"].get('alias-of'),
"EPYC-v1",
"EPYC must be an alias")
self.assertEquals(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.vm.add_args('-S')
self.vm.set_machine('none')
self.vm.launch()
cpus = dict((m['name'], m) for m in self.vm.command('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)