oeqa qemurunner.py: add timeout to QMP calls

When a qemu machine hangs, the QMP calls can hang for ever
too, and when this happens any failing test commands from ssh
runner may be followed by dump_monitor() calls which
then also hang. Hangs followed by hangs.

Use runqemutime at setup and run_monitor() specific timeout
for later calls.

(From OE-Core rev: cd6bb88d98b1dc8d751cf75b9ddcca39c84738c6)

Signed-off-by: Mikko Rapeli <mikko.rapeli@linaro.org>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
(cherry picked from commit 3a07bdf77dc6ecbf4c620b051dd032abaaf1e4ff)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/utils/qemurunner.py

@@ -346,6 +346,8 @@ class QemuRunner:
                     return False
 
             try:
+                # set timeout value for all QMP calls
+                self.qmp.settimeout(self.runqemutime)
                 self.qmp.connect()
                 connect_time = time.time()
                 self.logger.info("QMP connected to QEMU at %s and took %s seconds" %
@@ -623,6 +625,7 @@ class QemuRunner:
 
     def run_monitor(self, command, args=None, timeout=60):
         if hasattr(self, 'qmp') and self.qmp:
+            self.qmp.settimeout(timeout)
             if args is not None:
                 return self.qmp.cmd(command, args)
             else: