tests/avocado/intel_iommu.py

   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.
  10 import os
  11
  12 from avocado import skipIf
  13 from avocado_qemu import LinuxTest
  14
  15 @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
  16 class 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()