Add one scsi device case

xx-186123: [Host device assignment][SCSI] Hot-plug the same scsi device to two guests with shareable element

Signed-off-by: chunfuwen <[email protected]>

libvirt/tests/cfg/scsi/scsi_device.cfg

@@ -2,6 +2,7 @@
     type = scsi_device
     status_error = "no"
     start_vm = "no"
+    vms = avocado-vt-vm1 vm1
     variants scsi_type:
         - scsi_hostdev:
             variants:
@@ -28,6 +29,8 @@
                             controller_type = "scsi"
                             controller_model = "virtio-scsi"
                             controller_index = "0"
+                        - shared_by_two_guests:
+                            only hotplug
                 - negative:
                     variants test_scenario:
                         - max_sectors_controller:

libvirt/tests/src/scsi/scsi_device.py

@@ -430,6 +430,42 @@ def check_scsi_controller(test, params, env):
             test.fail("Get index=0 scsi controller although detached")
 
 
+def test_hotplug_scsi_hostdev_shared_by_two_guests(test, params, env):
+    """
+    Test hotplug scsi device into two guests
+
+    :param test: one test object instance
+    :param params: dict wrapped with params
+    :param env: environment instance
+    """
+    block_device1 = setup_iscsi_block_device()
+    hostdev_xml = create_host_dev(params, block_device1)
+    hostdev_xml.shareable = True
+    vm_names = params.get("vms").split()
+    for vm_name in vm_names:
+        vm = env.get_vm(vm_name)
+        if vm.is_dead():
+            vm.start()
+        vm.wait_for_login().close()
+        virsh.attach_device(vm_name, hostdev_xml.xml, flagstr="--live",
+                            ignore_status=False)
+
+
+def check_hostdev_shareable_attr(test, params, env):
+    """
+    check scsi shareable attribute
+
+    :param test: one test object instance
+    :param params: dict wrapped with params
+    :param env: environment instance
+    """
+    vm_names = params.get("vms").split()
+    for vm_name in vm_names:
+        vm_output = virsh.dumpxml(vm_name).stdout_text
+        if 'shareable' not in vm_output:
+            test.fail("VM: % failed to find shareable attribute in output: %s" % (vm_name, vm_output))
+
+
 def run(test, params, env):
     """
     Test manipulate scsi device.
@@ -443,13 +479,21 @@ def run(test, params, env):
     vm_name = params.get("main_vm")
     vm = env.get_vm(vm_name)
 
-    # Back up xml file
-    if vm.is_alive():
-        vm.destroy(gracefully=False)
+    vm_names = params.get("vms").split()
+    if len(vm_names) < 2:
+        test.cancel("No multi vms provided.")
+
+    # Backup vm xml files.
+    vms_backup = []
+    # it need use 2 VMs for testing.
+    for i in list(range(2)):
+        if virsh.is_alive(vm_name[i]):
+            virsh.destroy(vm_name[i], gracefully=False)
+        vmxml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_names[i])
+        vms_backup.append(vmxml_backup)
 
     coldplug = "yes" == params.get("coldplug")
     define_error = "yes" == params.get("define_error", "no")
-    xml_backup = vm_xml.VMXML.new_from_inactive_dumpxml(vm_name)
 
     plug_mode = params.get("plug_mode")
     scsi_type = params.get("scsi_type")
@@ -486,12 +530,16 @@ def run(test, params, env):
             check_vdisk_hostdev_address_unit(test, params, env)
         elif test_scenario == "unplug_scsi_controller":
             check_scsi_controller(test, params, env)
+        elif test_scenario == "shared_by_two_guests":
+            check_hostdev_shareable_attr(test, params, env)
     finally:
-        # Recover VM.
-        if vm.is_alive():
-            vm.destroy(gracefully=False)
-        LOG.info("Restoring vm...")
-        xml_backup.sync()
+        # Recover VMs.
+        for i in list(range(2)):
+            if virsh.is_alive(vm_name[i]):
+                virsh.destroy(vm_name[i], gracefully=False)
+        LOG.info("Restoring vms...")
+        for vmxml_backup in vms_backup:
+            vmxml_backup.sync()
         # Delete the tmp files.
         libvirt.setup_or_cleanup_iscsi(is_setup=False)
         if test_scenario == "boot_order":