KVM restore disk size
This is going to be implemented along with the other disk changes.
When restoring a KVM from backup the quota is not correctly updated since it is not stored into the ZFS send snapshot.
Once multi disk support is there all quotas for disks are stored and there will be no difference between KVM and Zones on that so it will be comparably easy to reset the quotas upon import.
This applies for the root disk not the non root disk
This is somewhat mitigated by the fact that disks can't just grow pushing it back
vmadm doesn't properly update this, so it's tricky