tp-qemu: Add case WMI_facility_test for windows guests

step1: boot guest vm up with num_queues
step2: enable vioscsi.sys verifier in guest
step3: run wmi check command
step4: check instance.QueuesCount value as expected
Signed-off-by: NPeixiu Hou <phou@redhat.com>

qemu/tests/cfg/virtio_scsi_mq.cfg

 - virtio_scsi_mq: install setup image_copy unattended_install.cdrom
     type = virtio_scsi_mq
     only virtio_scsi
-    only RHEL
     no RHEL.3 RHEL.4 RHEL.5 RHEL.6
     no Host_RHEL.m5 Host_RHEL.m6
     kill_vm_on_error = yes
@@ -14,3 +13,14 @@
     ppc64le,ppc64:
         system_image_drive_format = scsi-hd
         scsi_hba_image1 = spapr-vscsi
+    variants:
+        - @default:
+            only RHEL
+        - wmi_facility_check:
+            only Windows
+            # As WinXP, Win2003, Win2008, Win7 not support multi queue. So don't test them.
+            no WinXP Win2003 Win2008 Win7
+            system_image_drive_format = scsi-hd
+            driver_name = vioscsi
+            pattern = "instance\.QueuesCount=(\d+)"
+            wmi_check_cmd = "WIN_UTILS:\vioscsi.vbs && timeout 5 && type vioscsi.log"

qemu/tests/virtio_scsi_mq.py

@@ -4,6 +4,7 @@ import time
 
 from avocado.utils import cpu as utils_cpu
 from virttest import utils_misc
+from virttest import utils_test
 from virttest import env_process
 from virttest import qemu_qtree
 from virttest import error_context
@@ -91,6 +92,24 @@ def run(test, params, env):
     env_process.preprocess_vm(test, params, env, vm.name)
     session = vm.wait_for_login(timeout=timeout)
 
+    if params.get("os_type") == "windows":
+        driver_name = params["driver_name"]
+        wmi_check_cmd = params["wmi_check_cmd"]
+        pattern = params["pattern"]
+        session = utils_test.qemu.windrv_check_running_verifier(session, vm, test,
+                                                                driver_name, timeout)
+        wmi_check_cmd = utils_misc.set_winutils_letter(session, wmi_check_cmd)
+        error_context.context("Run wmi check in guest.", logging.info)
+        output = session.cmd_output(wmi_check_cmd)
+        queue_num = re.findall(pattern, output, re.M)
+        try:
+            if not queue_num or queue_num[0] != num_queues:
+                test.fail("The queue_num from guest is not match with expected.\n"
+                          "queue_num from guest is %s, expected is %s"
+                          % (queue_num, num_queues))
+        finally:
+            session.close()
+            return
     error_context.context("Check irqbalance service status", logging.info)
     output = session.cmd_output("systemctl status irqbalance")
     if not re.findall("Active: active", output):