Add new tests checking the good behavior of the SMMUv3 protecting 2 virtio pci devices (block and net). We check the guest boots and we are able to install a package. Different guest configs are tested: standard, passthrough an strict=0. Given the version of the guest kernel in use (5.3.7 at this moment), range invalidation is not yet tested. This will be handled separately.
Signed-off-by: Eric Auger <eric.au...@redhat.com> --- tests/acceptance/smmu.py | 104 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 tests/acceptance/smmu.py diff --git a/tests/acceptance/smmu.py b/tests/acceptance/smmu.py new file mode 100644 index 0000000000..65ecac8f1a --- /dev/null +++ b/tests/acceptance/smmu.py @@ -0,0 +1,104 @@ +# SMMUv3 Functional tests +# +# Copyright (c) 2021 Red Hat, Inc. +# +# Author: +# Eric Auger <eric.au...@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_qemu import LinuxTest, BUILD_DIR +from avocado.utils import ssh + +class SMMU(LinuxTest): + + KERNEL_COMMON_PARAMS = ("root=UUID=b6950a44-9f3c-4076-a9c2-355e8475b0a7 ro " + "earlyprintk=pl011,0x9000000 ignore_loglevel " + "no_timer_check printk.time=1 rd_NO_PLYMOUTH " + "console=ttyAMA0 ") + IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on' + IMAGE = ("https://archives.fedoraproject.org/pub/archive/fedora/" + "linux/releases/31/Everything/aarch64/os/images/pxeboot/") + 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 add_common_args(self): + self.vm.add_args("-machine", "virt") + 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') + + def common_vm_setup(self, custom_kernel=None): + self.require_accelerator("kvm") + self.add_common_args() + self.vm.add_args("-accel", "kvm") + self.vm.add_args("-cpu", "host") + self.vm.add_args("-machine", "iommu=smmuv3") + + if custom_kernel is None: + return + + kernel_url = self.IMAGE + 'vmlinuz' + initrd_url = self.IMAGE + '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') + + def test_smmu(self): + """ + :avocado: tags=accel:kvm + :avocado: tags=cpu:host + :avocado: tags=smmu + """ + + self.common_vm_setup() + self.run_and_check() + + def test_smmu_passthrough(self): + """ + :avocado: tags=accel:kvm + :avocado: tags=cpu:host + :avocado: tags=smmu + """ + self.common_vm_setup(True) + + self.kernel_params = self.KERNEL_COMMON_PARAMS + 'iommu.passthrough=on' + + self.run_and_check() + + def test_smmu_nostrict(self): + """ + :avocado: tags=accel:kvm + :avocado: tags=cpu:host + :avocado: tags=smmu + """ + self.common_vm_setup(True) + + self.kernel_params = self.KERNEL_COMMON_PARAMS + 'iommu.strict=0' + + self.run_and_check() -- 2.26.2