qemu/tests/acceptance/hotplug_cpu.py
Cleber Rosa fd1ce58d90 Acceptance Tests: introduce CPU hotplug test
Even though there are qtest based tests for hotplugging CPUs (from
which this test took some inspiration from), this one adds checks
from a Linux guest point of view.

It should also serve as an example for tests that follow a similar
pattern and need to interact with QEMU (via qmp) and with the Linux
guest via SSH.

Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20210412044644.55083-11-crosa@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
2021-06-01 16:21:21 -04:00

38 lines
1.2 KiB
Python

# Functional test that hotplugs a CPU and checks it on a Linux guest
#
# Copyright (c) 2021 Red Hat, Inc.
#
# Author:
# Cleber Rosa <crosa@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
from avocado_qemu import LinuxTest
class HotPlugCPU(LinuxTest):
def test(self):
"""
:avocado: tags=arch:x86_64
:avocado: tags=machine:q35
:avocado: tags=accel:kvm
"""
self.require_accelerator('kvm')
self.vm.add_args('-accel', 'kvm')
self.vm.add_args('-cpu', 'Haswell')
self.vm.add_args('-smp', '1,sockets=1,cores=2,threads=1,maxcpus=2')
self.launch_and_wait()
self.ssh_command('test -e /sys/devices/system/cpu/cpu0')
with self.assertRaises(AssertionError):
self.ssh_command('test -e /sys/devices/system/cpu/cpu1')
self.vm.command('device_add',
driver='Haswell-x86_64-cpu',
socket_id=0,
core_id=1,
thread_id=0)
self.ssh_command('test -e /sys/devices/system/cpu/cpu1')