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# SMMUv3 Functional tests
#
# Copyright (c) 2021 Red Hat, Inc.
#
# Author:
# Eric Auger <eric.auger@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
from avocado import skipUnless
from avocado_qemu import LinuxTest, BUILD_DIR
@skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab')
class SMMU(LinuxTest):
"""
:avocado: tags=accel:kvm
:avocado: tags=cpu:host
:avocado: tags=arch:aarch64
:avocado: tags=machine:virt
:avocado: tags=distro:fedora
:avocado: tags=smmu
"""
IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on'
kernel_path = None
initrd_path = None
kernel_params = None
def set_up_boot(self):
path = self.download_boot()
self.vm.add_args('-device', 'virtio-blk-pci,bus=pcie.0,scsi=off,' +
'drive=drv0,id=virtio-disk0,bootindex=1,'
'werror=stop,rerror=stop' + self.IOMMU_ADDON)
self.vm.add_args('-drive',
'file=%s,if=none,cache=writethrough,id=drv0' % path)
def setUp(self):
super(SMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON)
def common_vm_setup(self, custom_kernel=False):
self.require_accelerator("kvm")
self.vm.add_args("-accel", "kvm")
self.vm.add_args("-cpu", "host")
self.vm.add_args("-machine", "iommu=smmuv3")
self.vm.add_args("-d", "guest_errors")
self.vm.add_args('-bios', os.path.join(BUILD_DIR, 'pc-bios',
'edk2-aarch64-code.fd'))
self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0')
self.vm.add_args('-object',
'rng-random,id=rng0,filename=/dev/urandom')
if custom_kernel is False:
return
kernel_url = self.distro.pxeboot_url + 'vmlinuz'
initrd_url = self.distro.pxeboot_url + 'initrd.img'
self.kernel_path = self.fetch_asset(kernel_url)
self.initrd_path = self.fetch_asset(initrd_url)
def run_and_check(self):
if self.kernel_path:
self.vm.add_args('-kernel', self.kernel_path,
'-append', self.kernel_params,
'-initrd', self.initrd_path)
self.launch_and_wait()
self.ssh_command('cat /proc/cmdline')
self.ssh_command('dnf -y install numactl-devel')
# 5.3 kernel without RIL #
def test_smmu_noril(self):
"""
:avocado: tags=smmu_noril
:avocado: tags=smmu_noril_tests
:avocado: tags=distro_version:31
"""
self.common_vm_setup()
self.run_and_check()
def test_smmu_noril_passthrough(self):
"""
:avocado: tags=smmu_noril_passthrough
:avocado: tags=smmu_noril_tests
:avocado: tags=distro_version:31
"""
self.common_vm_setup(True)
self.kernel_params = (self.distro.default_kernel_params +
' iommu.passthrough=on')
self.run_and_check()
def test_smmu_noril_nostrict(self):
"""
:avocado: tags=smmu_noril_nostrict
:avocado: tags=smmu_noril_tests
:avocado: tags=distro_version:31
"""
self.common_vm_setup(True)
self.kernel_params = (self.distro.default_kernel_params +
' iommu.strict=0')
self.run_and_check()
# 5.8 kernel featuring range invalidation
# >= v5.7 kernel
def test_smmu_ril(self):
"""
:avocado: tags=smmu_ril
:avocado: tags=smmu_ril_tests
:avocado: tags=distro_version:33
"""
self.common_vm_setup()
self.run_and_check()
def test_smmu_ril_passthrough(self):
"""
:avocado: tags=smmu_ril_passthrough
:avocado: tags=smmu_ril_tests
:avocado: tags=distro_version:33
"""
self.common_vm_setup(True)
self.kernel_params = (self.distro.default_kernel_params +
' iommu.passthrough=on')
self.run_and_check()
def test_smmu_ril_nostrict(self):
"""
:avocado: tags=smmu_ril_nostrict
:avocado: tags=smmu_ril_tests
:avocado: tags=distro_version:33
"""
self.common_vm_setup(True)
self.kernel_params = (self.distro.default_kernel_params +
' iommu.strict=0')
self.run_and_check()
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