LXR qemu/tests/avocado/intel

   1# INTEL_IOMMU Functional tests
   2#
   3# Copyright (c) 2021 Red Hat, Inc.
   4#
   5# Author:
   6#  Eric Auger <eric.auger@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.
  10import os
  11
  12from avocado import skipIf
  13from avocado_qemu import LinuxTest
  14
  15@skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
  16class IntelIOMMU(LinuxTest):
  17    """
  18    :avocado: tags=arch:x86_64
  19    :avocado: tags=distro:fedora
  20    :avocado: tags=distro_version:31
  21    :avocado: tags=machine:q35
  22    :avocado: tags=accel:kvm
  23    :avocado: tags=intel_iommu
  24    """
  25
  26    IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on'
  27    kernel_path = None
  28    initrd_path = None
  29    kernel_params = None
  30
  31    def set_up_boot(self):
  32        path = self.download_boot()
  33        self.vm.add_args('-device', 'virtio-blk-pci,bus=pcie.0,scsi=off,' +
  34                         'drive=drv0,id=virtio-disk0,bootindex=1,'
  35                         'werror=stop,rerror=stop' + self.IOMMU_ADDON)
  36        self.vm.add_args('-device', 'virtio-gpu-pci' + self.IOMMU_ADDON)
  37        self.vm.add_args('-drive',
  38                         'file=%s,if=none,cache=writethrough,id=drv0' % path)
  39
  40    def setUp(self):
  41        super(IntelIOMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON)
  42
  43    def add_common_args(self):
  44        self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0')
  45        self.vm.add_args('-object',
  46                         'rng-random,id=rng0,filename=/dev/urandom')
  47
  48    def common_vm_setup(self, custom_kernel=None):
  49        self.require_accelerator("kvm")
  50        self.add_common_args()
  51        self.vm.add_args("-accel", "kvm")
  52
  53        if custom_kernel is None:
  54            return
  55
  56        kernel_url = self.distro.pxeboot_url + 'vmlinuz'
  57        initrd_url = self.distro.pxeboot_url + 'initrd.img'
  58        self.kernel_path = self.fetch_asset(kernel_url)
  59        self.initrd_path = self.fetch_asset(initrd_url)
  60
  61    def run_and_check(self):
  62        if self.kernel_path:
  63            self.vm.add_args('-kernel', self.kernel_path,
  64                             '-append', self.kernel_params,
  65                             '-initrd', self.initrd_path)
  66        self.launch_and_wait()
  67        self.ssh_command('cat /proc/cmdline')
  68        self.ssh_command('dmesg | grep -e DMAR -e IOMMU')
  69        self.ssh_command('find /sys/kernel/iommu_groups/ -type l')
  70        self.ssh_command('dnf -y install numactl-devel')
  71
  72    def test_intel_iommu(self):
  73        """
  74        :avocado: tags=intel_iommu_intremap
  75        """
  76
  77        self.common_vm_setup(True)
  78        self.vm.add_args('-device', 'intel-iommu,intremap=on')
  79        self.vm.add_args('-machine', 'kernel_irqchip=split')
  80
  81        self.kernel_params = (self.distro.default_kernel_params +
  82                              ' quiet intel_iommu=on')
  83        self.run_and_check()
  84
  85    def test_intel_iommu_strict(self):
  86        """
  87        :avocado: tags=intel_iommu_strict
  88        """
  89
  90        self.common_vm_setup(True)
  91        self.vm.add_args('-device', 'intel-iommu,intremap=on')
  92        self.vm.add_args('-machine', 'kernel_irqchip=split')
  93        self.kernel_params = (self.distro.default_kernel_params +
  94                              ' quiet intel_iommu=on,strict')
  95        self.run_and_check()
  96
  97    def test_intel_iommu_strict_cm(self):
  98        """
  99        :avocado: tags=intel_iommu_strict_cm
 100        """
 101
 102        self.common_vm_setup(True)
 103        self.vm.add_args('-device', 'intel-iommu,intremap=on,caching-mode=on')
 104        self.vm.add_args('-machine', 'kernel_irqchip=split')
 105        self.kernel_params = (self.distro.default_kernel_params +
 106                              ' quiet intel_iommu=on,strict')
 107        self.run_and_check()
 108
 109    def test_intel_iommu_pt(self):
 110        """
 111        :avocado: tags=intel_iommu_pt
 112        """
 113
 114        self.common_vm_setup(True)
 115        self.vm.add_args('-device', 'intel-iommu,intremap=on')
 116        self.vm.add_args('-machine', 'kernel_irqchip=split')
 117        self.kernel_params = (self.distro.default_kernel_params +
 118                              ' quiet intel_iommu=on iommu=pt')
 119        self.run_and_check()
 120