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Diffstat (limited to 'tests/functional/test_intel_iommu.py')
| -rwxr-xr-x | tests/functional/test_intel_iommu.py | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/tests/functional/test_intel_iommu.py b/tests/functional/test_intel_iommu.py new file mode 100755 index 0000000..62268d6 --- /dev/null +++ b/tests/functional/test_intel_iommu.py @@ -0,0 +1,155 @@ +#!/usr/bin/env python3 +# +# 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. + +from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern + + +class IntelIOMMU(LinuxKernelTest): + + ASSET_KERNEL = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases' + '/31/Server/x86_64/os/images/pxeboot/vmlinuz'), + 'd4738d03dbbe083ca610d0821d0a8f1488bebbdccef54ce33e3adb35fda00129') + + ASSET_INITRD = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases' + '/31/Server/x86_64/os/images/pxeboot/initrd.img'), + '277cd6c7adf77c7e63d73bbb2cded8ef9e2d3a2f100000e92ff1f8396513cd8b') + + ASSET_DISKIMAGE = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases' + '/31/Cloud/x86_64/images/Fedora-Cloud-Base-31-1.9.x86_64.qcow2'), + 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0') + + DEFAULT_KERNEL_PARAMS = ('root=/dev/vda1 console=ttyS0 net.ifnames=0 ' + 'quiet rd.rescue ') + GUEST_PORT = 8080 + IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on' + kernel_path = None + initrd_path = None + kernel_params = None + + def add_common_args(self, path): + self.vm.add_args('-drive', f'file={path},if=none,id=drv0,snapshot=on') + 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('-netdev', + 'user,id=n1,hostfwd=tcp:127.0.0.1:0-:%d' % + self.GUEST_PORT) + self.vm.add_args('-device', + 'virtio-net-pci,netdev=n1' + self.IOMMU_ADDON) + + self.vm.add_args('-device', 'virtio-rng-pci,rng=rng0') + self.vm.add_args('-object', + 'rng-random,id=rng0,filename=/dev/urandom') + self.vm.add_args("-m", "1G") + self.vm.add_args("-accel", "kvm") + + def common_vm_setup(self): + self.set_machine('q35') + self.require_accelerator("kvm") + self.require_netdev('user') + + self.kernel_path = self.ASSET_KERNEL.fetch() + self.initrd_path = self.ASSET_INITRD.fetch() + image_path = self.ASSET_DISKIMAGE.fetch() + self.add_common_args(image_path) + self.kernel_params = self.DEFAULT_KERNEL_PARAMS + + 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.vm.set_console() + self.vm.launch() + self.wait_for_console_pattern('Entering emergency mode.') + prompt = '# ' + self.wait_for_console_pattern(prompt) + + # Copy a file (checked later), umount afterwards to drop disk cache: + exec_command_and_wait_for_pattern(self, 'mount /dev/vda1 /sysroot', + prompt) + filename = '/boot/initramfs-5.3.7-301.fc31.x86_64.img' + exec_command_and_wait_for_pattern(self, (f'cp /sysroot{filename}' + ' /sysroot/root/data'), + prompt) + exec_command_and_wait_for_pattern(self, 'umount /sysroot', prompt) + + # Switch from initrd to the cloud image filesystem: + exec_command_and_wait_for_pattern(self, 'mount /dev/vda1 /sysroot', + prompt) + exec_command_and_wait_for_pattern(self, + ('for d in dev proc sys run ; do ' + 'mount -o bind /$d /sysroot/$d ; done'), prompt) + exec_command_and_wait_for_pattern(self, 'chroot /sysroot', prompt) + + # Checking for IOMMU enablement: + self.log.info("Checking whether IOMMU has been enabled...") + exec_command_and_wait_for_pattern(self, 'cat /proc/cmdline', + 'intel_iommu=on') + self.wait_for_console_pattern(prompt) + exec_command_and_wait_for_pattern(self, 'dmesg | grep DMAR:', + 'IOMMU enabled') + self.wait_for_console_pattern(prompt) + exec_command_and_wait_for_pattern(self, + 'find /sys/kernel/iommu_groups/ -type l', + 'devices/0000:00:') + self.wait_for_console_pattern(prompt) + + # Check hard disk device via sha256sum: + self.log.info("Checking hard disk...") + hashsum = '0dc7472f879be70b2f3daae279e3ae47175ffe249691e7d97f47222b65b8a720' + exec_command_and_wait_for_pattern(self, 'sha256sum ' + filename, + hashsum) + self.wait_for_console_pattern(prompt) + exec_command_and_wait_for_pattern(self, 'sha256sum /root/data', + hashsum) + self.wait_for_console_pattern(prompt) + + # Check virtio-net via HTTP: + exec_command_and_wait_for_pattern(self, 'dhclient eth0', prompt) + self.check_http_download(filename, hashsum, self.GUEST_PORT) + + def test_intel_iommu(self): + self.common_vm_setup() + self.vm.add_args('-device', 'intel-iommu,intremap=on') + self.vm.add_args('-machine', 'kernel_irqchip=split') + self.kernel_params += 'intel_iommu=on' + self.run_and_check() + + def test_intel_iommu_strict(self): + self.common_vm_setup() + self.vm.add_args('-device', 'intel-iommu,intremap=on') + self.vm.add_args('-machine', 'kernel_irqchip=split') + self.kernel_params += 'intel_iommu=on,strict' + self.run_and_check() + + def test_intel_iommu_strict_cm(self): + self.common_vm_setup() + self.vm.add_args('-device', 'intel-iommu,intremap=on,caching-mode=on') + self.vm.add_args('-machine', 'kernel_irqchip=split') + self.kernel_params += 'intel_iommu=on,strict' + self.run_and_check() + + def test_intel_iommu_pt(self): + self.common_vm_setup() + self.vm.add_args('-device', 'intel-iommu,intremap=on') + self.vm.add_args('-machine', 'kernel_irqchip=split') + self.kernel_params += 'intel_iommu=on iommu=pt' + self.run_and_check() + +if __name__ == '__main__': + LinuxKernelTest.main() |