Bug 1184340

From 11.2:

> However, there are the following limitations with regards to isa-serial/virtio-serial transport:
> 
>     The qemu-guest-agent cannot detect whether or not a client has connected to the channel.

As far as I can tell, this sentence should remain - the guest does not know if someone in the host is listening to the channel.

>     There is no way for a client to detect whether or not qemu-guest-agent has disconnected or reconnected to the back-end.

This sentence can be dropped.  Libvirt can now tell if qemu-guest-agent has the channel opened, and recognizes when the guest drops and then reconnects over a qemu-guest-agent restart.  Libvirt is able to intelligently quit attempting guest agent commands if the guest agent is not connected.

>     If the virtio-serial device resets and qemu-guest-agent has not connected to the channel (generally caused by a reboot or hotplug), data from the client will be dropped.

This is still true.  But not very consequential - since libvirt knows when the agent is connected, it is not going to send data before that point. So you can drop the sentence.

>     If qemu-guest-agent has connected to the channel following a virtio-serial device reset, data from the client will be queued (and eventually throttled if available buffers are exhausted), regardless of whether or not qemu-guest-agent is still running or connected.

Again, still true but not very consequential, so you can drop the sentence.

Thanks Eric for your input
Moving to Verified
Laura

Published on December 17 version 2-24

Published on December 17 version 2-24