LXR qemu/tests/avocado/smmu.py

   1# SMMUv3 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, BUILD_DIR
  14
  15@skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
  16class SMMU(LinuxTest):
  17    """
  18    :avocado: tags=accel:kvm
  19    :avocado: tags=cpu:host
  20    :avocado: tags=arch:aarch64
  21    :avocado: tags=machine:virt
  22    :avocado: tags=distro:fedora
  23    :avocado: tags=smmu
  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('-drive',
  37                         'file=%s,if=none,cache=writethrough,id=drv0' % path)
  38
  39    def setUp(self):
  40        super(SMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON)
  41
  42    def common_vm_setup(self, custom_kernel=False):
  43        self.require_accelerator("kvm")
  44        self.vm.add_args("-accel", "kvm")
  45        self.vm.add_args("-cpu", "host")
  46        self.vm.add_args("-machine", "iommu=smmuv3")
  47        self.vm.add_args("-d", "guest_errors")
  48        self.vm.add_args('-bios', os.path.join(BUILD_DIR, 'pc-bios',
  49                         'edk2-aarch64-code.fd'))
  50        self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0')
  51        self.vm.add_args('-object',
  52                         'rng-random,id=rng0,filename=/dev/urandom')
  53
  54        if custom_kernel is False:
  55            return
  56
  57        kernel_url = self.distro.pxeboot_url + 'vmlinuz'
  58        initrd_url = self.distro.pxeboot_url + 'initrd.img'
  59        self.kernel_path = self.fetch_asset(kernel_url)
  60        self.initrd_path = self.fetch_asset(initrd_url)
  61
  62    def run_and_check(self):
  63        if self.kernel_path:
  64            self.vm.add_args('-kernel', self.kernel_path,
  65                             '-append', self.kernel_params,
  66                             '-initrd', self.initrd_path)
  67        self.launch_and_wait()
  68        self.ssh_command('cat /proc/cmdline')
  69        self.ssh_command('dnf -y install numactl-devel')
  70
  71
  72    # 5.3 kernel without RIL #
  73
  74    def test_smmu_noril(self):
  75        """
  76        :avocado: tags=smmu_noril
  77        :avocado: tags=smmu_noril_tests
  78        :avocado: tags=distro_version:31
  79        """
  80        self.common_vm_setup()
  81        self.run_and_check()
  82
  83    def test_smmu_noril_passthrough(self):
  84        """
  85        :avocado: tags=smmu_noril_passthrough
  86        :avocado: tags=smmu_noril_tests
  87        :avocado: tags=distro_version:31
  88        """
  89        self.common_vm_setup(True)
  90        self.kernel_params = (self.distro.default_kernel_params +
  91                              ' iommu.passthrough=on')
  92        self.run_and_check()
  93
  94    def test_smmu_noril_nostrict(self):
  95        """
  96        :avocado: tags=smmu_noril_nostrict
  97        :avocado: tags=smmu_noril_tests
  98        :avocado: tags=distro_version:31
  99        """
 100        self.common_vm_setup(True)
 101        self.kernel_params = (self.distro.default_kernel_params +
 102                              ' iommu.strict=0')
 103        self.run_and_check()
 104
 105    # 5.8 kernel featuring range invalidation
 106    # >= v5.7 kernel
 107
 108    def test_smmu_ril(self):
 109        """
 110        :avocado: tags=smmu_ril
 111        :avocado: tags=smmu_ril_tests
 112        :avocado: tags=distro_version:33
 113        """
 114        self.common_vm_setup()
 115        self.run_and_check()
 116
 117    def test_smmu_ril_passthrough(self):
 118        """
 119        :avocado: tags=smmu_ril_passthrough
 120        :avocado: tags=smmu_ril_tests
 121        :avocado: tags=distro_version:33
 122        """
 123        self.common_vm_setup(True)
 124        self.kernel_params = (self.distro.default_kernel_params +
 125                              ' iommu.passthrough=on')
 126        self.run_and_check()
 127
 128    def test_smmu_ril_nostrict(self):
 129        """
 130        :avocado: tags=smmu_ril_nostrict
 131        :avocado: tags=smmu_ril_tests
 132        :avocado: tags=distro_version:33
 133        """
 134        self.common_vm_setup(True)
 135        self.kernel_params = (self.distro.default_kernel_params +
 136                              ' iommu.strict=0')
 137        self.run_and_check()
 138