70 lines
1.8 KiB
Python
70 lines
1.8 KiB
Python
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# Functional test that hotplugs a virtio blk disk and checks it on a Linux
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# guest
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#
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# Copyright (c) 2021 Red Hat, Inc.
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# Copyright (c) Yandex
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or
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# later. See the COPYING file in the top-level directory.
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import time
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from avocado_qemu import LinuxTest
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class HotPlug(LinuxTest):
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def blockdev_add(self) -> None:
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self.vm.cmd('blockdev-add', **{
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'driver': 'null-co',
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'size': 1073741824,
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'node-name': 'disk'
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})
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def assert_vda(self) -> None:
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self.ssh_command('test -e /sys/block/vda')
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def assert_no_vda(self) -> None:
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with self.assertRaises(AssertionError):
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self.assert_vda()
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def plug(self) -> None:
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args = {
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'driver': 'virtio-blk-pci',
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'drive': 'disk',
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'id': 'virtio-disk0',
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'bus': 'pci.1',
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'addr': 1
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}
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self.assert_no_vda()
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self.vm.cmd('device_add', args)
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try:
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self.assert_vda()
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except AssertionError:
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time.sleep(1)
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self.assert_vda()
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def unplug(self) -> None:
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self.vm.cmd('device_del', id='virtio-disk0')
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self.vm.event_wait('DEVICE_DELETED', 1.0,
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match={'data': {'device': 'virtio-disk0'}})
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self.assert_no_vda()
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def test(self) -> None:
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"""
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:avocado: tags=arch:x86_64
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:avocado: tags=machine:q35
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:avocado: tags=accel:kvm
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"""
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self.require_accelerator('kvm')
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self.vm.add_args('-accel', 'kvm')
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self.vm.add_args('-device', 'pcie-pci-bridge,id=pci.1,bus=pcie.0')
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self.launch_and_wait()
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self.blockdev_add()
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self.plug()
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self.unplug()
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