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charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::42c; envelope-from=alex.bennee@linaro.org; helo=mail-wr1-x42c.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1679674081925100001 From: David Woodhouse Exercise guests with a few different modes for interrupt delivery. In particular we want to cover: =E2=80=A2 Xen event channel delivery via GSI to the I/O APIC =E2=80=A2 Xen event channel delivery via GSI to the i8259 PIC =E2=80=A2 MSIs routed to PIRQ event channels =E2=80=A2 GSIs routed to PIRQ event channels As well as some variants of normal non-Xen stuff like MSI to vAPIC and PCI INTx going to the I/O APIC and PIC, which ought to still work even in Xen mode. Signed-off-by: David Woodhouse Signed-off-by: Alex Benn=C3=A9e --- v2 (ajb) - switch to plain QemuSystemTest + LinuxSSHMixIn - switch from fedora to custom kernel and buildroot - removed some unused code TODO: - properly probe for host support to skip test --- tests/avocado/kvm_xen_guest.py | 160 +++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 tests/avocado/kvm_xen_guest.py diff --git a/tests/avocado/kvm_xen_guest.py b/tests/avocado/kvm_xen_guest.py new file mode 100644 index 0000000000..1b4524d31c --- /dev/null +++ b/tests/avocado/kvm_xen_guest.py @@ -0,0 +1,160 @@ +# KVM Xen guest functional tests +# +# Copyright =C2=A9 2021 Red Hat, Inc. +# Copyright =C2=A9 2023 Amazon.com, Inc. or its affiliates. All Rights Res= erved. +# +# Author: +# David Woodhouse +# Alex Benn=C3=A9e +# +# SPDX-License-Identifier: GPL-2.0-or-later + +import os + +from avocado_qemu import LinuxSSHMixIn +from avocado_qemu import QemuSystemTest +from avocado_qemu import wait_for_console_pattern + +class KVMXenGuest(QemuSystemTest, LinuxSSHMixIn): + """ + :avocado: tags=3Darch:x86_64 + :avocado: tags=3Dmachine:q35 + :avocado: tags=3Daccel:kvm + :avocado: tags=3Dkvm_xen_guest + """ + + KERNEL_DEFAULT =3D 'printk.time=3D0 root=3D/dev/xvda console=3DttyS0' + + kernel_path =3D None + kernel_params =3D 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 =3D ('https://fileserver.linaro.org/s/' + 'kE4nCFLdQcoBF9t/download?' + 'path=3D%2Fkvm-xen-guest&files=3D' ) + url =3D base_url + name + # use explicit name rather than failing to neatly parse the + # URL into a unique one + return self.fetch_asset(name=3Dname, locations=3D(url), asset_hash= =3Dsha1) + + def common_vm_setup(self): + + # TODO: we also need to check host kernel version/support + self.require_accelerator("kvm") + + self.vm.set_console() + + self.vm.add_args("-accel", "kvm,xen-version=3D0x4000a,kernel-irqch= ip=3Dsplit") + self.vm.add_args("-smp", "2") + + self.kernel_path =3D self.get_asset("bzImage", + "367962983d0d32109998a70b45dcee4= 672d0b045") + self.rootfs =3D self.get_asset("rootfs.ext4", + "f1478401ea4b3fa2ea196396be44315bab2b= b5e4") + + def run_and_check(self): + self.vm.add_args('-kernel', self.kernel_path, + '-append', self.kernel_params, + '-drive', f"file=3D{self.rootfs},if=3Dnone,id=3D= drv0", + '-device', 'xen-disk,drive=3Ddrv0,vdev=3Dxvda', + '-device', 'virtio-net-pci,netdev=3Dunet', + '-netdev', 'user,id=3Dunet,hostfwd=3D:127.0.0.1:0= -:22') + + self.vm.launch() + self.log.info('VM launched, waiting for sshd') + console_pattern =3D '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=3Dkvm_xen_guest + """ + + self.common_vm_setup() + + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-disks') + self.run_and_check() + self.ssh_command('grep xen-pirq.*msi /proc/interrupts') + + def test_kvm_xen_guest_nomsi(self): + """ + :avocado: tags=3Dkvm_xen_guest_nomsi + """ + + self.common_vm_setup() + + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-disks pci=3Dnomsi') + self.run_and_check() + self.ssh_command('grep xen-pirq.* /proc/interrupts') + + def test_kvm_xen_guest_noapic_nomsi(self): + """ + :avocado: tags=3Dkvm_xen_guest_noapic_nomsi + """ + + self.common_vm_setup() + + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-disks noapic pci=3Dn= omsi') + self.run_and_check() + self.ssh_command('grep xen-pirq /proc/interrupts') + + def test_kvm_xen_guest_vapic(self): + """ + :avocado: tags=3Dkvm_xen_guest_vapic + """ + + self.common_vm_setup() + self.vm.add_args('-cpu', 'host,+xen-vapic') + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-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=3Dkvm_xen_guest_novector + """ + + self.common_vm_setup() + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-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=3Dkvm_xen_guest_novector_nomsi + """ + + self.common_vm_setup() + + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-disks pci=3Dnomsi' + + ' 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=3Dkvm_xen_guest_novector_noapic + """ + + self.common_vm_setup() + self.kernel_params =3D (self.KERNEL_DEFAULT + + ' xen_emul_unplug=3Dide-disks' + + ' xen_no_vector_callback noapic') + self.run_and_check() + self.ssh_command('grep xen-platform-pci /proc/interrupts') --=20 2.39.2