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