LXR qemu/tests/avocado/hotplug

   1# Functional test that hotplugs a CPU and checks it on a Linux guest
   2#
   3# Copyright (c) 2021 Red Hat, Inc.
   4#
   5# Author:
   6#  Cleber Rosa <crosa@redhat.com>
   7#
   8# This work is licensed under the terms of the GNU GPL, version 2 or
   9# later.  See the COPYING file in the top-level directory.
  10
  11from avocado_qemu import LinuxTest
  12
  13
  14class HotPlugCPU(LinuxTest):
  15
  16    def test(self):
  17        """
  18        :avocado: tags=arch:x86_64
  19        :avocado: tags=machine:q35
  20        :avocado: tags=accel:kvm
  21        """
  22        self.require_accelerator('kvm')
  23        self.vm.add_args('-accel', 'kvm')
  24        self.vm.add_args('-cpu', 'Haswell')
  25        self.vm.add_args('-smp', '1,sockets=1,cores=2,threads=1,maxcpus=2')
  26        self.launch_and_wait()
  27
  28        self.ssh_command('test -e /sys/devices/system/cpu/cpu0')
  29        with self.assertRaises(AssertionError):
  30            self.ssh_command('test -e /sys/devices/system/cpu/cpu1')
  31
  32        self.vm.command('device_add',
  33                        driver='Haswell-x86_64-cpu',
  34                        socket_id=0,
  35                        core_id=1,
  36                        thread_id=0)
  37        self.ssh_command('test -e /sys/devices/system/cpu/cpu1')
  38