virtual_network: Add a vdpa test

libvirt/tests/cfg/virtual_network/hotplug/attach_detach_device/rollback_vdpafd_on_hotplug_failure.cfg

@@ -0,0 +1,9 @@
+- virtual_network.hotplug.rollback.vdpa_interface:
+    type = rollback_vdpafd_on_hotplug_failure
+    start_vm = no
+    test_target = mellanox
+    vdpa_dev = "vdpa0"
+    iface_dict = {'source': {'dev': '/dev/vhost-vdpa-0'}, 'acpi': {'index': '1'}}
+    iface_dict2 = {'source': {'dev': '/dev/vhost-vdpa-1'}, 'acpi': {'index': '1'}}
+    func_supported_since_libvirt_ver = (10, 8, 0)
+    only x86_64

libvirt/tests/src/virtual_network/hotplug/attach_detach_device/rollback_vdpafd_on_hotplug_failure.py

@@ -0,0 +1,55 @@
+from provider.interface import interface_base
+from provider.interface import vdpa_base
+
+from avocado.utils import process
+
+from virttest import libvirt_version
+from virttest import virsh
+from virttest.libvirt_xml import vm_xml
+from virttest.utils_test import libvirt
+
+
+def run(test, params, env):
+    """
+    Check opened fd on vdpa device is closed when device attaching failed
+    """
+
+    libvirt_version.is_libvirt_feature_supported(params)
+
+    # Variable assignment
+    test_target = params.get('test_target', '')
+    dev_type = params.get('dev_type', 'vdpa')
+    iface_dict2 = eval(params.get("iface_dict2", "{}"))
+    iface2_dev = iface_dict2["source"]["dev"]
+
+    vm_name = params.get('main_vm')
+    vm = env.get_vm(vm_name)
+
+    vmxml = vm_xml.VMXML.new_from_dumpxml(vm_name)
+    backup_vmxml = vmxml.copy()
+
+    test_obj = None
+    try:
+        test_obj, _ = vdpa_base.setup_vdpa(vm, params)
+        test.log.info("TEST_STEP: Start a vm, attach a vdpa interface with "
+                      "acpi index=1.")
+        vm.start()
+        interface_base.attach_iface_device(vm_name, dev_type, params)
+
+        test.log.info("TEST_STEP: Hotplug another vdpa interface with "
+                      "acpi index=1.")
+        iface2 = interface_base.create_iface("vdpa", iface_dict2)
+        res = virsh.attach_device(vm.name, iface2.xml, debug=True)
+        libvirt.check_exit_status(res, True)
+        res = process.run(f"lsof {iface2_dev}", verbose=True, ignore_status=True)
+        libvirt.check_exit_status(res, True)
+        if res.stdout_text:
+            test.fail(f"{iface2_dev} may be used by qemu - {res.stdout_text}")
+
+        test.log.info("TEST_STEP: Hotplug another vdpa interface with "
+                      "acpi index=2.")
+        iface2.setup_attrs(**{'acpi': {'index': '2'}})
+        virsh.attach_device(vm.name, iface2.xml, debug=True, ignore_status=False)
+    finally:
+        backup_vmxml.sync()
+        vdpa_base.cleanup_vdpa(test_target, test_obj)