qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
Log | Files | Refs | Submodules | LICENSE

intel_iommu.py (4167B)

      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()