# KVM Xen guest functional tests # # Copyright © 2021 Red Hat, Inc. # Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved. # # Author: # David Woodhouse <dwmw2@infradead.org> # Alex Bennée <alex.bennee@linaro.org> # # SPDX-License-Identifier: GPL-2.0-or-later import os from qemu.machine import machine from avocado_qemu import LinuxSSHMixIn from avocado_qemu import QemuSystemTest from avocado_qemu import wait_for_console_pattern class KVMXenGuest(QemuSystemTest, LinuxSSHMixIn): """ :avocado: tags=arch:x86_64 :avocado: tags=machine:q35 :avocado: tags=accel:kvm :avocado: tags=kvm_xen_guest """ KERNEL_DEFAULT = 'printk.time=0 root=/dev/xvda console=ttyS0' kernel_path = None kernel_params = None # Fetch assets from the kvm-xen-guest subdir of my shared test # images directory on fileserver.linaro.org where you can find # build instructions for how they where assembled. def get_asset(self, name, sha1): base_url = ('https://fileserver.linaro.org/s/' 'kE4nCFLdQcoBF9t/download?' 'path=%2Fkvm-xen-guest&files=' ) url = base_url + name # use explicit name rather than failing to neatly parse the # URL into a unique one return self.fetch_asset(name=name, locations=(url), asset_hash=sha1) def common_vm_setup(self): # We also catch lack of KVM_XEN support if we fail to launch self.require_accelerator("kvm") self.vm.set_console() self.vm.add_args("-accel", "kvm,xen-version=0x4000a,kernel-irqchip=split") self.vm.add_args("-smp", "2") self.kernel_path = self.get_asset("bzImage", "367962983d0d32109998a70b45dcee4672d0b045") self.rootfs = self.get_asset("rootfs.ext4", "f1478401ea4b3fa2ea196396be44315bab2bb5e4") def run_and_check(self): self.vm.add_args('-kernel', self.kernel_path, '-append', self.kernel_params, '-drive', f"file={self.rootfs},if=none,snapshot=on,format=raw,id=drv0", '-device', 'xen-disk,drive=drv0,vdev=xvda', '-device', 'virtio-net-pci,netdev=unet', '-netdev', 'user,id=unet,hostfwd=:127.0.0.1:0-:22') try: self.vm.launch() except machine.VMLaunchFailure as e: if "Xen HVM guest support not present" in e.output: self.cancel("KVM Xen support is not present " "(need v5.12+ kernel with CONFIG_KVM_XEN)") elif "Property 'kvm-accel.xen-version' not found" in e.output: self.cancel("QEMU not built with CONFIG_XEN_EMU support") else: raise e self.log.info('VM launched, waiting for sshd') console_pattern = 'Starting dropbear sshd: OK' wait_for_console_pattern(self, console_pattern, 'Oops') self.log.info('sshd ready') self.ssh_connect('root', '', False) self.ssh_command('cat /proc/cmdline') self.ssh_command('dmesg | grep -e "Grant table initialized"') def test_kvm_xen_guest(self): """ :avocado: tags=kvm_xen_guest """ self.common_vm_setup() self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks') self.run_and_check() self.ssh_command('grep xen-pirq.*msi /proc/interrupts') def test_kvm_xen_guest_nomsi(self): """ :avocado: tags=kvm_xen_guest_nomsi """ self.common_vm_setup() self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks pci=nomsi') self.run_and_check() self.ssh_command('grep xen-pirq.* /proc/interrupts') def test_kvm_xen_guest_noapic_nomsi(self): """ :avocado: tags=kvm_xen_guest_noapic_nomsi """ self.common_vm_setup() self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks noapic pci=nomsi') self.run_and_check() self.ssh_command('grep xen-pirq /proc/interrupts') def test_kvm_xen_guest_vapic(self): """ :avocado: tags=kvm_xen_guest_vapic """ self.common_vm_setup() self.vm.add_args('-cpu', 'host,+xen-vapic') self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks') self.run_and_check() self.ssh_command('grep xen-pirq /proc/interrupts') self.ssh_command('grep PCI-MSI /proc/interrupts') def test_kvm_xen_guest_novector(self): """ :avocado: tags=kvm_xen_guest_novector """ self.common_vm_setup() self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks' + ' xen_no_vector_callback') self.run_and_check() self.ssh_command('grep xen-platform-pci /proc/interrupts') def test_kvm_xen_guest_novector_nomsi(self): """ :avocado: tags=kvm_xen_guest_novector_nomsi """ self.common_vm_setup() self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks pci=nomsi' + ' xen_no_vector_callback') self.run_and_check() self.ssh_command('grep xen-platform-pci /proc/interrupts') def test_kvm_xen_guest_novector_noapic(self): """ :avocado: tags=kvm_xen_guest_novector_noapic """ self.common_vm_setup() self.kernel_params = (self.KERNEL_DEFAULT + ' xen_emul_unplug=ide-disks' + ' xen_no_vector_callback noapic') self.run_and_check() self.ssh_command('grep xen-platform-pci /proc/interrupts')