| # INTEL_IOMMU 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.linuxtest import LinuxTest |
| |
| @skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab') |
| class IntelIOMMU(LinuxTest): |
| """ |
| :avocado: tags=arch:x86_64 |
| :avocado: tags=distro:fedora |
| :avocado: tags=distro_version:31 |
| :avocado: tags=machine:q35 |
| :avocado: tags=accel:kvm |
| :avocado: tags=intel_iommu |
| :avocado: tags=flaky |
| """ |
| |
| 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,' + |
| 'drive=drv0,id=virtio-disk0,bootindex=1,' |
| 'werror=stop,rerror=stop' + self.IOMMU_ADDON) |
| self.vm.add_args('-device', 'virtio-gpu-pci' + self.IOMMU_ADDON) |
| self.vm.add_args('-drive', |
| 'file=%s,if=none,cache=writethrough,id=drv0' % path) |
| |
| def setUp(self): |
| super(IntelIOMMU, self).setUp(None, 'virtio-net-pci' + self.IOMMU_ADDON) |
| |
| def add_common_args(self): |
| 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") |
| |
| if custom_kernel is None: |
| return |
| |
| kernel_url = self.distro.pxeboot_url + 'vmlinuz' |
| kernel_hash = '5b6f6876e1b5bda314f93893271da0d5777b1f3c' |
| initrd_url = self.distro.pxeboot_url + 'initrd.img' |
| initrd_hash = 'dd0340a1b39bd28f88532babd4581c67649ec5b1' |
| self.kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash) |
| self.initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash) |
| |
| 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('dmesg | grep -e DMAR -e IOMMU') |
| self.ssh_command('find /sys/kernel/iommu_groups/ -type l') |
| self.ssh_command('dnf -y install numactl-devel') |
| |
| def test_intel_iommu(self): |
| """ |
| :avocado: tags=intel_iommu_intremap |
| """ |
| |
| self.common_vm_setup(True) |
| self.vm.add_args('-device', 'intel-iommu,intremap=on') |
| self.vm.add_args('-machine', 'kernel_irqchip=split') |
| |
| self.kernel_params = (self.distro.default_kernel_params + |
| ' quiet intel_iommu=on') |
| self.run_and_check() |
| |
| def test_intel_iommu_strict(self): |
| """ |
| :avocado: tags=intel_iommu_strict |
| """ |
| |
| self.common_vm_setup(True) |
| self.vm.add_args('-device', 'intel-iommu,intremap=on') |
| self.vm.add_args('-machine', 'kernel_irqchip=split') |
| self.kernel_params = (self.distro.default_kernel_params + |
| ' quiet intel_iommu=on,strict') |
| self.run_and_check() |
| |
| def test_intel_iommu_strict_cm(self): |
| """ |
| :avocado: tags=intel_iommu_strict_cm |
| """ |
| |
| self.common_vm_setup(True) |
| self.vm.add_args('-device', 'intel-iommu,intremap=on,caching-mode=on') |
| self.vm.add_args('-machine', 'kernel_irqchip=split') |
| self.kernel_params = (self.distro.default_kernel_params + |
| ' quiet intel_iommu=on,strict') |
| self.run_and_check() |
| |
| def test_intel_iommu_pt(self): |
| """ |
| :avocado: tags=intel_iommu_pt |
| """ |
| |
| self.common_vm_setup(True) |
| self.vm.add_args('-device', 'intel-iommu,intremap=on') |
| self.vm.add_args('-machine', 'kernel_irqchip=split') |
| self.kernel_params = (self.distro.default_kernel_params + |
| ' quiet intel_iommu=on iommu=pt') |
| self.run_and_check() |
