93e88e0c22
Instead of old per-VM flag 'pci_strictreset', now implement this as per-device flag using features. To not fail on particular device assignment set 'pci-no-strict-reset/DEVICE-BDF' to True. For example 'pci-no-strict-reset/00:1b.0'. QubesOS/qubes-issues#2257
174 lines
6.8 KiB
Python
174 lines
6.8 KiB
Python
#!/usr/bin/python2 -O
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# vim: fileencoding=utf-8
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# pylint: disable=protected-access,pointless-statement
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#
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# The Qubes OS Project, https://www.qubes-os.org/
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#
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# Copyright (C) 2015-2016 Joanna Rutkowska <joanna@invisiblethingslab.com>
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# Copyright (C) 2015-2016 Wojtek Porczyk <woju@invisiblethingslab.com>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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import os
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import subprocess
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import time
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import qubes.devices
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import qubes.ext.pci
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import qubes.tests
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class TC_00_Devices_PCI(qubes.tests.SystemTestsMixin,
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qubes.tests.QubesTestCase):
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def setUp(self):
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super(TC_00_Devices_PCI, self).setUp()
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if self._testMethodName not in ['test_000_list']:
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pcidev = os.environ.get('QUBES_TEST_PCIDEV', None)
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if pcidev is None:
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self.skipTest('Specify PCI device with QUBES_TEST_PCIDEV '
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'environment variable')
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self.dev = self.app.domains[0].devices['pci'][pcidev]
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if isinstance(self.dev, qubes.devices.UnknownDevice):
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self.skipTest('Specified device {} does not exists'.format(pcidev))
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self.init_default_template()
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self.vm = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('vm'),
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label='red',
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)
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self.vm.create_on_disk()
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self.vm.features['pci-no-strict-reset/' + pcidev] = True
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self.app.save()
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def test_000_list(self):
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p = subprocess.Popen(['lspci'], stdout=subprocess.PIPE)
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# get a dict: BDF -> description
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actual_devices = dict(
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l.split(' (')[0].split(' ', 1)
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for l in p.communicate()[0].splitlines())
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for dev in self.app.domains[0].devices['pci']:
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self.assertIsInstance(dev, qubes.ext.pci.PCIDevice)
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self.assertEqual(dev.backend_domain, self.app.domains[0])
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self.assertIn(dev.ident, actual_devices)
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self.assertEqual(dev.description, actual_devices[dev.ident])
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self.assertIsInstance(dev.frontend_domain,
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(qubes.vm.BaseVM, None.__class__))
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actual_devices.pop(dev.ident)
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if actual_devices:
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self.fail('Not all devices listed, missing: {}'.format(
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actual_devices))
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def test_010_attach_offline(self):
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self.assertIsNone(self.dev.frontend_domain)
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached())
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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self.vm.devices['pci'].attach(self.dev)
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self.app.save()
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# still should be None, as domain is not started yet
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self.assertIsNone(self.dev.frontend_domain)
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self.assertIn(self.dev, self.vm.devices['pci'].attached())
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self.assertIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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self.vm.start()
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self.assertEqual(self.dev.frontend_domain, self.vm)
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self.assertIn(self.dev, self.vm.devices['pci'].attached())
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self.assertIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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p = self.vm.run('lspci', passio_popen=True)
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(stdout, _) = p.communicate()
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self.assertIn(self.dev.description, stdout)
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def test_011_attach_online(self):
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self.vm.start()
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self.vm.devices['pci'].attach(self.dev)
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self.assertEqual(self.dev.frontend_domain, self.vm)
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self.assertIn(self.dev, self.vm.devices['pci'].attached())
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self.assertIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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# give VM kernel some time to discover new device
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time.sleep(1)
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p = self.vm.run('lspci', passio_popen=True)
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(stdout, _) = p.communicate()
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self.assertIn(self.dev.description, stdout)
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def test_012_attach_online_temp(self):
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self.vm.start()
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self.vm.devices['pci'].attach(self.dev, persistent=False)
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self.assertEqual(self.dev.frontend_domain, self.vm)
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self.assertIn(self.dev, self.vm.devices['pci'].attached())
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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# give VM kernel some time to discover new device
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time.sleep(1)
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p = self.vm.run('lspci', passio_popen=True)
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(stdout, _) = p.communicate()
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self.assertIn(self.dev.description, stdout)
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def test_020_detach_online(self):
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self.vm.devices['pci'].attach(self.dev)
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self.app.save()
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self.vm.start()
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self.assertIn(self.dev, self.vm.devices['pci'].attached())
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self.assertIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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self.assertEqual(self.dev.frontend_domain, self.vm)
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self.vm.devices['pci'].detach(self.dev)
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self.assertIsNone(self.dev.frontend_domain)
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached())
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=True))
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self.assertNotIn(self.dev, self.vm.devices['pci'].attached(
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persistent=False))
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p = self.vm.run('lspci', passio_popen=True)
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(stdout, _) = p.communicate()
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self.assertNotIn(self.dev.description, stdout)
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# can't do this right now because of kernel bug - it cause the whole
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# PCI bus being deregistered, which emit some warning in sysfs
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# handling code (removing non-existing "0000:00" group)
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#
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# p = self.vm.run('dmesg', passio_popen=True)
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# (stdout, _) = p.communicate()
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# # check for potential oops
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# self.assertNotIn('end trace', stdout)
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