diff options
Diffstat (limited to 'tests/functional')
| -rw-r--r-- | tests/functional/meson.build | 2 | ||||
| -rw-r--r-- | tests/functional/qemu_test/testcase.py | 6 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_device_passthrough.py | 142 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_imx8mp_evk.py | 1 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_sbsaref.py | 5 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_sbsaref_alpine.py | 3 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_sbsaref_freebsd.py | 3 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_smmu.py | 12 | ||||
| -rwxr-xr-x | tests/functional/test_aarch64_xen.py | 1 |
9 files changed, 166 insertions, 9 deletions
diff --git a/tests/functional/meson.build b/tests/functional/meson.build index e9f19d5..8515856 100644 --- a/tests/functional/meson.build +++ b/tests/functional/meson.build @@ -13,6 +13,7 @@ endif test_timeouts = { 'aarch64_aspeed_ast2700' : 600, 'aarch64_aspeed_ast2700fc' : 600, + 'aarch64_device_passthrough' : 720, 'aarch64_imx8mp_evk' : 240, 'aarch64_raspi4' : 480, 'aarch64_reverse_debug' : 180, @@ -83,6 +84,7 @@ tests_aarch64_system_quick = [ tests_aarch64_system_thorough = [ 'aarch64_aspeed_ast2700', 'aarch64_aspeed_ast2700fc', + 'aarch64_device_passthrough', 'aarch64_imx8mp_evk', 'aarch64_raspi3', 'aarch64_raspi4', diff --git a/tests/functional/qemu_test/testcase.py b/tests/functional/qemu_test/testcase.py index 50c401b..2082c6f 100644 --- a/tests/functional/qemu_test/testcase.py +++ b/tests/functional/qemu_test/testcase.py @@ -23,7 +23,7 @@ import unittest import uuid from qemu.machine import QEMUMachine -from qemu.utils import kvm_available, tcg_available +from qemu.utils import hvf_available, kvm_available, tcg_available from .archive import archive_extract from .asset import Asset @@ -317,7 +317,9 @@ class QemuSystemTest(QemuBaseTest): :type accelerator: str """ checker = {'tcg': tcg_available, - 'kvm': kvm_available}.get(accelerator) + 'kvm': kvm_available, + 'hvf': hvf_available, + }.get(accelerator) if checker is None: self.skipTest("Don't know how to check for the presence " "of accelerator %s" % accelerator) diff --git a/tests/functional/test_aarch64_device_passthrough.py b/tests/functional/test_aarch64_device_passthrough.py new file mode 100755 index 0000000..1f3f158 --- /dev/null +++ b/tests/functional/test_aarch64_device_passthrough.py @@ -0,0 +1,142 @@ +#!/usr/bin/env python3 +# +# Boots a nested guest and compare content of a device (passthrough) to a +# reference image. Both vfio group and iommufd passthrough methods are tested. +# +# Copyright (c) 2025 Linaro Ltd. +# +# Author: Pierrick Bouvier <pierrick.bouvier@linaro.org> +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import os + +from qemu_test import QemuSystemTest, Asset +from qemu_test import exec_command, wait_for_console_pattern +from qemu_test import exec_command_and_wait_for_pattern +from random import randbytes + +guest_script = ''' +#!/usr/bin/env bash + +set -euo pipefail +set -x + +# find disks from nvme serial +dev_vfio=$(lsblk --nvme | grep vfio | cut -f 1 -d ' ') +dev_iommufd=$(lsblk --nvme | grep iommufd | cut -f 1 -d ' ') +pci_vfio=$(basename $(readlink -f /sys/block/$dev_vfio/../../../)) +pci_iommufd=$(basename $(readlink -f /sys/block/$dev_iommufd/../../../)) + +# bind disks to vfio +for p in "$pci_vfio" "$pci_iommufd"; do + if [ "$(cat /sys/bus/pci/devices/$p/driver_override)" == vfio-pci ]; then + continue + fi + echo $p > /sys/bus/pci/drivers/nvme/unbind + echo vfio-pci > /sys/bus/pci/devices/$p/driver_override + echo $p > /sys/bus/pci/drivers/vfio-pci/bind +done + +# boot nested guest and execute /host/nested_guest.sh +# one disk is passed through vfio group, the other, through iommufd +qemu-system-aarch64 \ +-M virt \ +-display none \ +-serial stdio \ +-cpu host \ +-enable-kvm \ +-m 1G \ +-kernel /host/Image.gz \ +-drive format=raw,file=/host/guest.ext4,if=virtio \ +-append "root=/dev/vda init=/init -- bash /host/nested_guest.sh" \ +-virtfs local,path=/host,mount_tag=host,security_model=mapped,readonly=off \ +-device vfio-pci,host=$pci_vfio \ +-object iommufd,id=iommufd0 \ +-device vfio-pci,host=$pci_iommufd,iommufd=iommufd0 +''' + +nested_guest_script = ''' +#!/usr/bin/env bash + +set -euo pipefail +set -x + +image_vfio=/host/disk_vfio +image_iommufd=/host/disk_iommufd + +dev_vfio=$(lsblk --nvme | grep vfio | cut -f 1 -d ' ') +dev_iommufd=$(lsblk --nvme | grep iommufd | cut -f 1 -d ' ') + +# compare if devices are identical to original images +diff $image_vfio /dev/$dev_vfio +diff $image_iommufd /dev/$dev_iommufd + +echo device_passthrough_test_ok +''' + +class Aarch64DevicePassthrough(QemuSystemTest): + + # https://github.com/pbo-linaro/qemu-linux-stack + # + # Linux kernel is compiled with defconfig + + # IOMMUFD + VFIO_DEVICE_CDEV + ARM_SMMU_V3_IOMMUFD + # https://docs.kernel.org/driver-api/vfio.html#vfio-device-cde + ASSET_DEVICE_PASSTHROUGH_STACK = Asset( + ('https://fileserver.linaro.org/s/fx5DXxBYme8dw2G/' + 'download/device_passthrough.tar.xz'), + '812750b664d61c2986f2b149939ae28cafbd60d53e9c7e4b16e97143845e196d') + + # This tests the device passthrough implementation, by booting a VM + # supporting it with two nvme disks attached, and launching a nested VM + # reading their content. + def test_aarch64_device_passthrough(self): + self.set_machine('virt') + self.require_accelerator('tcg') + + self.vm.set_console() + + stack_path_tar_gz = self.ASSET_DEVICE_PASSTHROUGH_STACK.fetch() + self.archive_extract(stack_path_tar_gz, format="tar") + + stack = self.scratch_file('out') + kernel = os.path.join(stack, 'Image.gz') + rootfs_host = os.path.join(stack, 'host.ext4') + disk_vfio = os.path.join(stack, 'disk_vfio') + disk_iommufd = os.path.join(stack, 'disk_iommufd') + guest_cmd = os.path.join(stack, 'guest.sh') + nested_guest_cmd = os.path.join(stack, 'nested_guest.sh') + # we generate two random disks + with open(disk_vfio, "wb") as d: d.write(randbytes(512)) + with open(disk_iommufd, "wb") as d: d.write(randbytes(1024)) + with open(guest_cmd, 'w') as s: s.write(guest_script) + with open(nested_guest_cmd, 'w') as s: s.write(nested_guest_script) + + self.vm.add_args('-cpu', 'max') + self.vm.add_args('-m', '2G') + self.vm.add_args('-M', 'virt,' + 'virtualization=on,' + 'gic-version=max,' + 'iommu=smmuv3') + self.vm.add_args('-kernel', kernel) + self.vm.add_args('-drive', f'format=raw,file={rootfs_host}') + self.vm.add_args('-drive', + f'file={disk_vfio},if=none,id=vfio,format=raw') + self.vm.add_args('-device', 'nvme,serial=vfio,drive=vfio') + self.vm.add_args('-drive', + f'file={disk_iommufd},if=none,id=iommufd,format=raw') + self.vm.add_args('-device', 'nvme,serial=iommufd,drive=iommufd') + self.vm.add_args('-virtfs', + f'local,path={stack}/,mount_tag=host,' + 'security_model=mapped,readonly=off') + # boot and execute guest script + # init will trigger a kernel panic if script fails + self.vm.add_args('-append', + 'root=/dev/vda init=/init -- bash /host/guest.sh') + + self.vm.launch() + wait_for_console_pattern(self, 'device_passthrough_test_ok', + failure_message='Kernel panic') + +if __name__ == '__main__': + QemuSystemTest.main() diff --git a/tests/functional/test_aarch64_imx8mp_evk.py b/tests/functional/test_aarch64_imx8mp_evk.py index 638bf9e..99ddcde 100755 --- a/tests/functional/test_aarch64_imx8mp_evk.py +++ b/tests/functional/test_aarch64_imx8mp_evk.py @@ -49,6 +49,7 @@ class Imx8mpEvkMachine(LinuxKernelTest): self.DTB_OFFSET, self.DTB_SIZE) def test_aarch64_imx8mp_evk_usdhc(self): + self.require_accelerator("tcg") self.set_machine('imx8mp-evk') self.vm.set_console(console_index=1) self.vm.add_args('-m', '2G', diff --git a/tests/functional/test_aarch64_sbsaref.py b/tests/functional/test_aarch64_sbsaref.py index e6a55ae..d3402f5 100755 --- a/tests/functional/test_aarch64_sbsaref.py +++ b/tests/functional/test_aarch64_sbsaref.py @@ -40,8 +40,6 @@ def fetch_firmware(test): with open(path, "ab+") as fd: fd.truncate(256 << 20) # Expand volumes to 256MiB - test.set_machine('sbsa-ref') - test.vm.set_console() test.vm.add_args( "-drive", f"if=pflash,file={fs0_path},format=raw", "-drive", f"if=pflash,file={fs1_path},format=raw", @@ -68,8 +66,11 @@ class Aarch64SbsarefMachine(QemuSystemTest): def test_sbsaref_edk2_firmware(self): + self.set_machine('sbsa-ref') + fetch_firmware(self) + self.vm.set_console() self.vm.add_args('-cpu', 'cortex-a57') self.vm.launch() diff --git a/tests/functional/test_aarch64_sbsaref_alpine.py b/tests/functional/test_aarch64_sbsaref_alpine.py index 6108ec6..8776999 100755 --- a/tests/functional/test_aarch64_sbsaref_alpine.py +++ b/tests/functional/test_aarch64_sbsaref_alpine.py @@ -26,8 +26,9 @@ class Aarch64SbsarefAlpine(QemuSystemTest): # We only boot a whole OS for the current top level CPU and GIC # Other test profiles should use more minimal boots def boot_alpine_linux(self, cpu=None): - fetch_firmware(self) + self.set_machine('sbsa-ref') + fetch_firmware(self) iso_path = self.ASSET_ALPINE_ISO.fetch() self.vm.set_console() diff --git a/tests/functional/test_aarch64_sbsaref_freebsd.py b/tests/functional/test_aarch64_sbsaref_freebsd.py index 26dfc58..3cddc08 100755 --- a/tests/functional/test_aarch64_sbsaref_freebsd.py +++ b/tests/functional/test_aarch64_sbsaref_freebsd.py @@ -26,8 +26,9 @@ class Aarch64SbsarefFreeBSD(QemuSystemTest): # We only boot a whole OS for the current top level CPU and GIC # Other test profiles should use more minimal boots def boot_freebsd14(self, cpu=None): - fetch_firmware(self) + self.set_machine('sbsa-ref') + fetch_firmware(self) img_path = self.ASSET_FREEBSD_ISO.fetch() self.vm.set_console() diff --git a/tests/functional/test_aarch64_smmu.py b/tests/functional/test_aarch64_smmu.py index c65d0f2..e0f4a92 100755 --- a/tests/functional/test_aarch64_smmu.py +++ b/tests/functional/test_aarch64_smmu.py @@ -17,7 +17,7 @@ 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 +from qemu.utils import kvm_available, hvf_available class SMMU(LinuxKernelTest): @@ -45,11 +45,17 @@ class SMMU(LinuxKernelTest): self.vm.add_args('-device', 'virtio-net,netdev=n1' + self.IOMMU_ADDON) def common_vm_setup(self, kernel, initrd, disk): - self.require_accelerator("kvm") + 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", "kvm") + 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") diff --git a/tests/functional/test_aarch64_xen.py b/tests/functional/test_aarch64_xen.py index 3399042..261d796 100755 --- a/tests/functional/test_aarch64_xen.py +++ b/tests/functional/test_aarch64_xen.py @@ -33,6 +33,7 @@ class BootXen(LinuxKernelTest): """ Launch Xen with a dom0 guest kernel """ + self.require_accelerator("tcg") # virtualization=on self.set_machine('virt') self.cpu = "cortex-a57" self.kernel_path = self.ASSET_KERNEL.fetch() |