[Xen-devel] Unable to host backend on User Domains

[Abhay G A <abhayga@xxxxxxxxxxxxxxxx>]

Hi,
             Is it possible to host a split driver between 2 user 
domains. There is no concrete documentation on doing so.
I have basically copied the NETIF backend and frontend drivers and 
created the split TEMPIF drivers. I have also changed the python scripts 
to create devices.
When used between dom0 and domU this works.
By changing the protocol type of device i was be able to send and 
recieve socket buffers, by just adding  network protocol hooks, like 
ip_rcv().
But i am unable to do so between 2  domUs. Is there anything special 
that i have to do.
I am using XEN 3.0 testing.

I have enabled the backend on one domU by adding the following line in 
the boot config file as
>> tempif  = yes
and added the following info in boot config file of domU hosting the 
frontend
>> tempvif = [ 'backend=1']
assuming domU hosting the backend is 1.

While creating the device using python script, without the following line
back =   { 'hotplug-status' : 'connected' }

error when i execute xm create is
>>Error: Device 0 (tempvif) could not be connected. Hotplug scripts not 
working
otherwise the device is created on the domainU hosting frontend, without 
the probe functions calling the backend.
therefore i see NO ANY COMMUNICATION BETWEEN XENBUS and BACKEND for 
TEMPIF drivers
thanks in advance,
looking forward for some insight

abhay


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