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.
  10 import os
  11
  12 from avocado import skipUnless
  13 from avocado_qemu import LinuxTest, BUILD_DIR
  14
  15 @skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab')
  16
  17 class SMMU(LinuxTest):
  18     """
  19     :avocado: tags=accel:kvm
  20     :avocado: tags=cpu:host
  21     :avocado: tags=arch:aarch64
  22     :avocado: tags=machine:virt
  23     :avocado: tags=distro:fedora
  24     :avocado: tags=smmu
  25     :avocado: tags=flaky
  26     """
  27
  28     IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on'
  29     kernel_path = None
  30     initrd_path = None
  31     kernel_params = None
  32
  33     def set_up_boot(self):
  34         path = self.download_boot()
  35         self.vm.add_args('-device', 'virtio-blk-pci,bus=pcie.0,scsi=off,' +
  36                          'drive=drv0,id=virtio-disk0,bootindex=1,'
  37                          'werror=stop,rerror=stop' + self.IOMMU_ADDON)
  38         self.vm.add_args('-drive',
  39                          'file=%s,if=none,cache=writethrough,id=drv0' % path)
  40
  41     def setUp(self):
  42         super(SMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON)
  43
  44     def common_vm_setup(self, custom_kernel=False):
  45         self.require_accelerator("kvm")
  46         self.vm.add_args("-accel", "kvm")
  47         self.vm.add_args("-cpu", "host")
  48         self.vm.add_args("-machine", "iommu=smmuv3")
  49         self.vm.add_args("-d", "guest_errors")
  50         self.vm.add_args('-bios', os.path.join(BUILD_DIR, 'pc-bios',
  51                          'edk2-aarch64-code.fd'))
  52         self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0')
  53         self.vm.add_args('-object',
  54                          'rng-random,id=rng0,filename=/dev/urandom')
  55
  56         if custom_kernel is False:
  57             return
  58
  59         kernel_url = self.distro.pxeboot_url + 'vmlinuz'
  60         initrd_url = self.distro.pxeboot_url + 'initrd.img'
  61         self.kernel_path = self.fetch_asset(kernel_url)
  62         self.initrd_path = self.fetch_asset(initrd_url)
  63
  64     def run_and_check(self):
  65         if self.kernel_path:
  66             self.vm.add_args('-kernel', self.kernel_path,
  67                              '-append', self.kernel_params,
  68                              '-initrd', self.initrd_path)
  69         self.launch_and_wait()
  70         self.ssh_command('cat /proc/cmdline')
  71         self.ssh_command('dnf -y install numactl-devel')
  72
  73
  74     # 5.3 kernel without RIL #
  75
  76     def test_smmu_noril(self):
  77         """
  78         :avocado: tags=smmu_noril
  79         :avocado: tags=smmu_noril_tests
  80         :avocado: tags=distro_version:31
  81         """
  82         self.common_vm_setup()
  83         self.run_and_check()
  84
  85     def test_smmu_noril_passthrough(self):
  86         """
  87         :avocado: tags=smmu_noril_passthrough
  88         :avocado: tags=smmu_noril_tests
  89         :avocado: tags=distro_version:31
  90         """
  91         self.common_vm_setup(True)
  92         self.kernel_params = (self.distro.default_kernel_params +
  93                               ' iommu.passthrough=on')
  94         self.run_and_check()
  95
  96     def test_smmu_noril_nostrict(self):
  97         """
  98         :avocado: tags=smmu_noril_nostrict
  99         :avocado: tags=smmu_noril_tests
 100         :avocado: tags=distro_version:31
 101         """
 102         self.common_vm_setup(True)
 103         self.kernel_params = (self.distro.default_kernel_params +
 104                               ' iommu.strict=0')
 105         self.run_and_check()
 106
 107     # 5.8 kernel featuring range invalidation
 108     # >= v5.7 kernel
 109
 110     def test_smmu_ril(self):
 111         """
 112         :avocado: tags=smmu_ril
 113         :avocado: tags=smmu_ril_tests
 114         :avocado: tags=distro_version:33
 115         """
 116         self.common_vm_setup()
 117         self.run_and_check()
 118
 119     def test_smmu_ril_passthrough(self):
 120         """
 121         :avocado: tags=smmu_ril_passthrough
 122         :avocado: tags=smmu_ril_tests
 123         :avocado: tags=distro_version:33
 124         """
 125         self.common_vm_setup(True)
 126         self.kernel_params = (self.distro.default_kernel_params +
 127                               ' iommu.passthrough=on')
 128         self.run_and_check()
 129
 130     def test_smmu_ril_nostrict(self):
 131         """
 132         :avocado: tags=smmu_ril_nostrict
 133         :avocado: tags=smmu_ril_tests
 134         :avocado: tags=distro_version:33
 135         """
 136         self.common_vm_setup(True)
 137         self.kernel_params = (self.distro.default_kernel_params +
 138                               ' iommu.strict=0')
 139         self.run_and_check()