Hi Guys,
Lately, I have been trying to play with Xen Driver Domain. I have been able to 
make it work where both the  Driver Domain OS and the guest OS are run on 
paravirtualized (PV) machine. However, it doesn't work when any of them are 
hardware virtualized machine (HVM). Therefore, I have the following questions 
now.
1. Is it possible to have the Driver Domain and guests, who are using the 
corresponding drivers, run on virtual machines using other than the PV mode, 
like HVM or PVHVM? If yes, then what are the possible combinations?
2. Is it possible to use virtIO for paravirtualization where the underlying 
hypervisor is Xen? If yes, then can we run Driver Domain using virtIO?
3. Is it possible to have a Driver Domain where the underlying hypervisor is 
KVM instead of Xen?

The last question may not be directly related to Xen. However, I am tempted to 
ask as good things like PV was first introduced in Xen then others hypervisors 
adapted this design.  

Please let me know your valuable opinion and feel free to provide any link 
where I can study further regarding these matters.
Thanks,Mehrab
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