Re: [libvirt] [RFC PATCH] Use PAUSED state for domains that are starting up

When libvirt is starting a domain, it reports the state as SHUTOFF until it's RUNNING. This is not ideal because domain startup may take a long time (usually because of some configuration issues, firewalls blocking access to network disks, etc.) and domain lists provided by libvirt look awkward. One can see weird shutoff domains with IDs in a list of active domains or even shutoff transient domains. In any case, it looks more like a bug in libvirt than a normal state a domain goes through. I'm not quite sure what the best way to fix this is. In this patch, I tried to use PAUSED state with STARTING_UP reason. Alternatively, we could keep using SHUTOFF state and just set STARTING_UP reason instead of UNKNOWN but it just feels wrong and wouldn't really solve the confusion when looking at virsh list. I made the change to qemu driver only in this RFC patch, I will update all drivers once we agree on the best approach.