diff options
Diffstat (limited to 'tests/functional/aarch64/test_smmu.py')
| -rwxr-xr-x | tests/functional/aarch64/test_smmu.py | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/tests/functional/aarch64/test_smmu.py b/tests/functional/aarch64/test_smmu.py new file mode 100755 index 0000000000..e0f4a92217 --- /dev/null +++ b/tests/functional/aarch64/test_smmu.py @@ -0,0 +1,211 @@ +#!/usr/bin/env python3 +# +# SPDX-License-Identifier: GPL-2.0-or-later +# +# 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 +import time + +from qemu_test import LinuxKernelTest, Asset, exec_command_and_wait_for_pattern +from qemu_test import BUILD_DIR +from qemu.utils import kvm_available, hvf_available + + +class SMMU(LinuxKernelTest): + + default_kernel_params = ('earlyprintk=pl011,0x9000000 no_timer_check ' + 'printk.time=1 rd_NO_PLYMOUTH net.ifnames=0 ' + 'console=ttyAMA0 rd.rescue') + IOMMU_ADDON = ',iommu_platform=on,disable-modern=off,disable-legacy=on' + kernel_path = None + initrd_path = None + kernel_params = None + + GUEST_PORT = 8080 + + def set_up_boot(self, path): + 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('-drive', + f'file={path},if=none,cache=writethrough,id=drv0,snapshot=on') + + 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,netdev=n1' + self.IOMMU_ADDON) + + def common_vm_setup(self, kernel, initrd, disk): + if hvf_available(self.qemu_bin): + accel = "hvf" + elif kvm_available(self.qemu_bin): + accel = "kvm" + else: + self.skipTest("Neither HVF nor KVM accelerator is available") + self.require_accelerator(accel) + self.require_netdev('user') + self.set_machine("virt") + self.vm.add_args('-m', '1G') + self.vm.add_args("-accel", accel) + 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') + + self.kernel_path = kernel.fetch() + self.initrd_path = initrd.fetch() + self.set_up_boot(disk.fetch()) + + def run_and_check(self, filename, hashsum): + self.vm.add_args('-initrd', self.initrd_path) + self.vm.add_args('-append', self.kernel_params) + self.launch_kernel(self.kernel_path, initrd=self.initrd_path, + wait_for='attach it to a bug report.') + prompt = '# ' + # Fedora 33 requires 'return' to be pressed to enter the shell. + # There seems to be a small race between detecting the previous ':' + # and sending the newline, so we need to add a small delay here. + self.wait_for_console_pattern(':') + time.sleep(0.2) + exec_command_and_wait_for_pattern(self, '\n', prompt) + exec_command_and_wait_for_pattern(self, 'cat /proc/cmdline', + self.kernel_params) + + # Checking for SMMU enablement: + self.log.info("Checking whether SMMU has been enabled...") + exec_command_and_wait_for_pattern(self, 'dmesg | grep smmu', + 'arm-smmu-v3') + 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) + + # Copy a file (checked later), umount afterwards to drop disk cache: + self.log.info("Checking hard disk...") + exec_command_and_wait_for_pattern(self, + "while ! (dmesg -c | grep vda:) ; do sleep 1 ; done", + "vda2") + exec_command_and_wait_for_pattern(self, 'mount /dev/vda2 /sysroot', + 'mounted filesystem') + exec_command_and_wait_for_pattern(self, 'cp /bin/vi /sysroot/root/vi', + 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/vda2 /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) + # Check files on the hard disk: + exec_command_and_wait_for_pattern(self, + ('if diff -q /root/vi /usr/bin/vi ; then echo "file" "ok" ; ' + 'else echo "files differ"; fi'), 'file ok') + self.wait_for_console_pattern(prompt) + exec_command_and_wait_for_pattern(self, f'sha256sum {filename}', + hashsum) + + # Check virtio-net via HTTP: + exec_command_and_wait_for_pattern(self, 'dhclient eth0', prompt) + self.check_http_download(filename, hashsum, self.GUEST_PORT) + + + # 5.3 kernel without RIL # + + ASSET_KERNEL_F31 = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/' + 'releases/31/Server/aarch64/os/images/pxeboot/vmlinuz'), + '3ae07fcafbfc8e4abeb693035a74fe10698faae15e9ccd48882a9167800c1527') + + ASSET_INITRD_F31 = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/' + 'releases/31/Server/aarch64/os/images/pxeboot/initrd.img'), + '9f3146b28bc531c689f3c5f114cb74e4bd7bd548e0ba19fa77921d8bd256755a') + + ASSET_DISK_F31 = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases' + '/31/Cloud/aarch64/images/Fedora-Cloud-Base-31-1.9.aarch64.qcow2'), + '1e18d9c0cf734940c4b5d5ec592facaed2af0ad0329383d5639c997fdf16fe49') + + F31_FILENAME = '/boot/initramfs-5.3.7-301.fc31.aarch64.img' + F31_HSUM = '1a4beec6607d94df73d9dd1b4985c9c23dd0fdcf4e6ca1351d477f190df7bef9' + + def test_smmu_noril(self): + self.common_vm_setup(self.ASSET_KERNEL_F31, self.ASSET_INITRD_F31, + self.ASSET_DISK_F31) + self.kernel_params = self.default_kernel_params + self.run_and_check(self.F31_FILENAME, self.F31_HSUM) + + def test_smmu_noril_passthrough(self): + self.common_vm_setup(self.ASSET_KERNEL_F31, self.ASSET_INITRD_F31, + self.ASSET_DISK_F31) + self.kernel_params = (self.default_kernel_params + + ' iommu.passthrough=on') + self.run_and_check(self.F31_FILENAME, self.F31_HSUM) + + def test_smmu_noril_nostrict(self): + self.common_vm_setup(self.ASSET_KERNEL_F31, self.ASSET_INITRD_F31, + self.ASSET_DISK_F31) + self.kernel_params = (self.default_kernel_params + + ' iommu.strict=0') + self.run_and_check(self.F31_FILENAME, self.F31_HSUM) + + + # 5.8 kernel featuring range invalidation + # >= v5.7 kernel + + ASSET_KERNEL_F33 = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/' + 'releases/33/Server/aarch64/os/images/pxeboot/vmlinuz'), + 'd8b1e6f7241f339d8e7609c456cf0461ffa4583ed07e0b55c7d1d8a0c154aa89') + + ASSET_INITRD_F33 = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/' + 'releases/33/Server/aarch64/os/images/pxeboot/initrd.img'), + '92513f55295c2c16a777f7b6c35ccd70a438e9e1e40b6ba39e0e60900615b3df') + + ASSET_DISK_F33 = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora/linux/releases' + '/33/Cloud/aarch64/images/Fedora-Cloud-Base-33-1.2.aarch64.qcow2'), + 'e7f75cdfd523fe5ac2ca9eeece68edc1a81f386a17f969c1d1c7c87031008a6b') + + F33_FILENAME = '/boot/initramfs-5.8.15-301.fc33.aarch64.img' + F33_HSUM = '079cfad0caa82e84c8ca1fb0897a4999dd769f262216099f518619e807a550d9' + + def test_smmu_ril(self): + self.common_vm_setup(self.ASSET_KERNEL_F33, self.ASSET_INITRD_F33, + self.ASSET_DISK_F33) + self.kernel_params = self.default_kernel_params + self.run_and_check(self.F33_FILENAME, self.F33_HSUM) + + def test_smmu_ril_passthrough(self): + self.common_vm_setup(self.ASSET_KERNEL_F33, self.ASSET_INITRD_F33, + self.ASSET_DISK_F33) + self.kernel_params = (self.default_kernel_params + + ' iommu.passthrough=on') + self.run_and_check(self.F33_FILENAME, self.F33_HSUM) + + def test_smmu_ril_nostrict(self): + self.common_vm_setup(self.ASSET_KERNEL_F33, self.ASSET_INITRD_F33, + self.ASSET_DISK_F33) + self.kernel_params = (self.default_kernel_params + + ' iommu.strict=0') + self.run_and_check(self.F33_FILENAME, self.F33_HSUM) + + +if __name__ == '__main__': + LinuxKernelTest.main() |