From: David Woodhouse <d...@amazon.co.uk>
Exercise guests with a few different modes for interrupt delivery. In
particular we want to cover:
• Xen event channel delivery via GSI to the I/O APIC
• Xen event channel delivery via GSI to the i8259 PIC
• MSIs routed to PIRQ event channels
• 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 <d...@amazon.co.uk>
---
tests/avocado/xen_guest.py | 147 +++++++++++++++++++++++++++++++++++++
1 file changed, 147 insertions(+)
create mode 100644 tests/avocado/xen_guest.py
diff --git a/tests/avocado/xen_guest.py b/tests/avocado/xen_guest.py
new file mode 100644
index 0000000000..c50b52958f
--- /dev/null
+++ b/tests/avocado/xen_guest.py
@@ -0,0 +1,147 @@
+# Xen guest functional tests
+#
+# Copyright © 2021 Red Hat, Inc.
+# Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+#
+# Author:
+# David Woodhouse <dw...@infradead.org>
+#
+# 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
+
+from avocado import skipIf
+from avocado_qemu import LinuxTest
+
+@skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
+class XenGuest(LinuxTest):
+ """
+ :avocado: tags=arch:x86_64
+ :avocado: tags=distro:fedora
+ :avocado: tags=distro_version:34
+ :avocado: tags=machine:q35
+ :avocado: tags=accel:kvm
+ :avocado: tags=xen_guest
+ """
+
+ kernel_path = None
+ initrd_path = None
+ kernel_params = None
+
+ def set_up_boot(self):
+ path = self.download_boot()
+ self.vm.add_args('-drive', 'file=%s,if=none,id=drv0' % path)
+ self.vm.add_args('-device', 'xen-disk,drive=drv0,vdev=xvda')
+
+ def setUp(self):
+ super(XenGuest, self).setUp(None, 'virtio-net-pci')
+
+ def common_vm_setup(self, custom_kernel=None):
+ self.require_accelerator("kvm")
+ self.vm.add_args("-accel",
"kvm,xen-version=0x4000a,kernel-irqchip=split")
+ self.vm.add_args("-smp", "4")
+
+ if custom_kernel is None:
+ return
+
+ kernel_url = self.distro.pxeboot_url + 'vmlinuz'
+ initrd_url = self.distro.pxeboot_url + 'initrd.img'
+ self.kernel_path = self.fetch_asset(kernel_url, algorithm='sha256',
+ asset_hash=self.distro.kernel_hash)
+ self.initrd_path = self.fetch_asset(initrd_url, algorithm='sha256',
+ asset_hash=self.distro.initrd_hash)
+
+ 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.launch_and_wait()
+ self.ssh_command('cat /proc/cmdline')
+ self.ssh_command('dmesg | grep -e "Grant table initialized"')
+
+ def test_xen_guest(self):
+ """
+ :avocado: tags=xen_guest
+ """
+
+ self.common_vm_setup(True)
+
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' xen_emul_unplug=ide-disks')
+ self.run_and_check()
+ self.ssh_command('grep xen-pirq.*msi /proc/interrupts')
+
+ def test_xen_guest_nomsi(self):
+ """
+ :avocado: tags=xen_guest_nomsi
+ """
+
+ self.common_vm_setup(True)
+
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' xen_emul_unplug=ide-disks pci=nomsi')
+ self.run_and_check()
+ self.ssh_command('grep xen-pirq.* /proc/interrupts')
+
+ def test_xen_guest_noapic_nomsi(self):
+ """
+ :avocado: tags=xen_guest_noapic_nomsi
+ """
+
+ self.common_vm_setup(True)
+
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' xen_emul_unplug=ide-disks noapic pci=nomsi')
+ self.run_and_check()
+ self.ssh_command('grep xen-pirq /proc/interrupts')
+
+ def test_xen_guest_vapic(self):
+ """
+ :avocado: tags=xen_guest_vapic
+ """
+
+ self.common_vm_setup(True)
+ self.vm.add_args('-cpu', 'host,+xen-vapic')
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' 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_xen_guest_novector(self):
+ """
+ :avocado: tags=xen_guest_novector
+ """
+
+ self.common_vm_setup(True)
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' xen_emul_unplug=ide-disks' +
+ ' xen_no_vector_callback')
+ self.run_and_check()
+ self.ssh_command('grep xen-platform-pci /proc/interrupts')
+
+ def test_xen_guest_novector_nomsi(self):
+ """
+ :avocado: tags=xen_guest_novector_nomsi
+ """
+
+ self.common_vm_setup(True)
+
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' 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_xen_guest_novector_noapic(self):
+ """
+ :avocado: tags=xen_guest_novector_noapic
+ """
+
+ self.common_vm_setup(True)
+ self.kernel_params = (self.distro.default_kernel_params +
+ ' xen_emul_unplug=ide-disks' +
+ ' xen_no_vector_callback noapic')
+ self.run_and_check()
+ self.ssh_command('grep xen-platform-pci /proc/interrupts')
--
2.39.0
