it to return status information to dom0:
/local/domain/X/backend/vif/Y/Z/hotplug-status
The xenstore is completely inaccessible from my driver domain
however. I've installed the xenstored daemon in the driver domain
which requires running it with the --no-domain-init option to keep
it from trying to execute privileged operations (it's not dom0).
You should be able to read it? At least for your domain entry?
Even with the xenstored daemon running though I (and the networking
scripts) still can't access then xenstore.
Well, you can't access all of it b/c there is an ownership of the
/local/domain/0 being under Dom0. Not under DomU. AFAICT the backends
use those entries (for example, netback detects via watches that
somebody wrote in /local/domain/0/backend/vif and calls its .probe
function), they will interogate the XenStore and then create udev events
which are fired off to userspace.