xref: /openbmc/qemu/tests/avocado/intel_iommu.py (revision 90bb6d67) 
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        kernel_hash = '5b6f6876e1b5bda314f93893271da0d5777b1f3c'
58        initrd_url = self.distro.pxeboot_url + 'initrd.img'
59        initrd_hash = 'dd0340a1b39bd28f88532babd4581c67649ec5b1'
60        self.kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
61        self.initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
62
63    def run_and_check(self):
64        if self.kernel_path:
65            self.vm.add_args('-kernel', self.kernel_path,
66                             '-append', self.kernel_params,
67                             '-initrd', self.initrd_path)
68        self.launch_and_wait()
69        self.ssh_command('cat /proc/cmdline')
70        self.ssh_command('dmesg | grep -e DMAR -e IOMMU')
71        self.ssh_command('find /sys/kernel/iommu_groups/ -type l')
72        self.ssh_command('dnf -y install numactl-devel')
73
74    def test_intel_iommu(self):
75        """
76        :avocado: tags=intel_iommu_intremap
77        """
78
79        self.common_vm_setup(True)
80        self.vm.add_args('-device', 'intel-iommu,intremap=on')
81        self.vm.add_args('-machine', 'kernel_irqchip=split')
82
83        self.kernel_params = (self.distro.default_kernel_params +
84                              ' quiet intel_iommu=on')
85        self.run_and_check()
86
87    def test_intel_iommu_strict(self):
88        """
89        :avocado: tags=intel_iommu_strict
90        """
91
92        self.common_vm_setup(True)
93        self.vm.add_args('-device', 'intel-iommu,intremap=on')
94        self.vm.add_args('-machine', 'kernel_irqchip=split')
95        self.kernel_params = (self.distro.default_kernel_params +
96                              ' quiet intel_iommu=on,strict')
97        self.run_and_check()
98
99    def test_intel_iommu_strict_cm(self):
100        """
101        :avocado: tags=intel_iommu_strict_cm
102        """
103
104        self.common_vm_setup(True)
105        self.vm.add_args('-device', 'intel-iommu,intremap=on,caching-mode=on')
106        self.vm.add_args('-machine', 'kernel_irqchip=split')
107        self.kernel_params = (self.distro.default_kernel_params +
108                              ' quiet intel_iommu=on,strict')
109        self.run_and_check()
110
111    def test_intel_iommu_pt(self):
112        """
113        :avocado: tags=intel_iommu_pt
114        """
115
116        self.common_vm_setup(True)
117        self.vm.add_args('-device', 'intel-iommu,intremap=on')
118        self.vm.add_args('-machine', 'kernel_irqchip=split')
119        self.kernel_params = (self.distro.default_kernel_params +
120                              ' quiet intel_iommu=on iommu=pt')
121        self.run_and_check()
122