Hi,
I have found an issue where QEMU emits the RESUME event during startup
when it starts VM execution, but it is not possible to receive this event.
To repro this, run:
qemu-system-i386 -m 256 -trace
enable=monitor_protocol_event_emit,file=/tmp/out -qmp
unix:/tmp/qmp,server,wait
QEMU will not start execution of the VM until something connects to the
QMP socket (e.g. qmp-shell). Once connected, no event is received on the
QMP connection but the tracepoint is hit indicating that an event has
been emitted. I suspect that the event is emitted while the QMP client
is doing the initial negotiation.
The reason I want to receive this event is that QEMU currently uses
xenstore to communicate this information to the Xen toolstack (see
xen-common.c:xen_change_state_handler) but we want to move to using QMP
rather than xenstore for this kind of thing.
Is this a known issue or just a bug that should be fixed?
Thanks,
--
Ross Lagerwall
