driver/qemudriver: Report an error if QEMU is not turned on

sjg20 · sjg20 · commit 2cba25295bab · 2026-04-03T09:39:08.000-06:00
Rather than provide a strange exception, complain when a strategy does
not use the QEMU driver properly, perhaps due to user settings.

Series-changes: 6
- Add new patch to report an error if QEMU is not turned on

Signed-off-by: Simon Glass &lt;sjg@chromium.org&gt;
diff --git a/labgrid/driver/qemudriver.py b/labgrid/driver/qemudriver.py
@@ -361,6 +361,8 @@ def remove_port_forward(self, proto, local_address, local_port, netdev=""):
         )
 
     def _read(self, size=1, timeout=10, max_size=None):
+        if not self._clientsocket:
+            raise ExecutionError('QEMU has not been started')
         ready, _, _ = select.select([self._clientsocket], [], [], timeout)
         if ready:
             # Collect some more data

Original file line number	Diff line number	Diff line change
`@@ -361,6 +361,8 @@ def remove_port_forward(self, proto, local_address, local_port, netdev=""):`
`361`	`361`	`)`
`362`	`362`
`363`	`363`	`def _read(self, size=1, timeout=10, max_size=None):`
	`364`	`+ if not self._clientsocket:`
	`365`	`+ raise ExecutionError('QEMU has not been started')`
`364`	`366`	`ready, _, _ = select.select([self._clientsocket], [], [], timeout)`
`365`	`367`	`if ready:`
`366`	`368`	`# Collect some more data`