[libvirt] Libvirt synchronous hooks

[Radek Hladik]

I am trying Libvirt synchronous hooks and I would like to ask a 
question. I would like to use the machine start (qemu+kvm) hook to set 
up the storage for the machine. I already mentioned my setup in this 
mailing list but for now it is only important that VM storage is a md 
raid constructed from iSCSI disks. The VM's config is using simple file 
device:
<disk type='file' device='disk'>
   <driver name='qemu' type=''/>
   <source 
file='/dev/disk/by-id/md-uuid-e464a51e:f61e98b4:bfe78010:bc810f04'/>
    <target dev='vda' bus='virtio'/>
     <address type='pci' domain='0x0000' bus='0x00' slot='0x05' 
function='0x0'/>
  </disk>

Stopping the array from stop hook works perfectly however it seems that 
on the startup  the storage is checked before the hook is executed. At 
least I do get errors that the storage file 
(/dev/disk/by-id/md-uuid-....) does not exist and my hook is not called.

I would say that I am hooking on wrong places that I should hook on 
storage startup/shutdown but as far as I know there are no hooks for 
storage drivers. Are there any plans in this area? Or is there any other 
way how to do it that I do not see?

Radek