Netkvm: Fix session handling issue during netkvm driver installation

qemu/tests/single_driver_install.py

@@ -2,7 +2,7 @@
 import re
 
 from aexpect import ShellTimeoutError
-from virttest import error_context, utils_misc
+from virttest import error_context, utils_misc, utils_net
 from virttest.utils_test.qemu import windrv_verify_running
 from virttest.utils_windows import virtio_win, wmic
 
@@ -147,7 +147,8 @@ def run(test, params, env):
             vm.destroy()
             vm.create()
             vm = env.get_vm(params["main_vm"])
-            session = vm.wait_for_login()
+            # This is a workaround for session logout issue
+            session = vm.wait_for_serial_login()
         else:
             session = vm.reboot(session)
 
@@ -175,6 +176,18 @@ def run(test, params, env):
             lambda: not session.cmd_status(chk_cmd), 600, 60, 10
         ):
             test.fail("Failed to install driver '%s'" % driver_name)
+        if "Red Hat VirtIO Ethernet Adapter" in device_name:
+            ext_host = utils_net.get_ip_address_by_interface(
+                ifname="%s" % params.get("netdst")
+            )
+            test.log.info("ext_host of netkvm adapter is %s", ext_host)
+            guest_ip = vm.get_address("nic2")
+            test.log.info("guest_ip of netkvm adapter is %s", guest_ip)
+            status, output = utils_net.ping(
+                ext_host, interface=guest_ip, count=10, timeout=60, session=session
+            )
+            if status:
+                test.fail("Ping %s failed, output=%s" % (ext_host, output))
 
         installed_any |= True
     if not installed_any: