Hello, Steven!
>> Moreover, the domU is starting without 'bridge' key with
>> vif2 =[ '' ]
>> but what i have, are
>> 1. Virtual network interface is created in dom0 with name 'eth1', while
>> in old netchannel1,  virtual network intarface
>> has the name 'vifN.M'. It's very strange that i have 'eth1' instead of
>> 'vifN.M'.
>>     
> Is it?  It's easy enough to change the name of the interface, but I've
> never really understood why it was desirable.
>   
I'd like to distinguish somehow, that device named 'vif' is virtual 
network interface for domU,
at least for testing purposes.


Thank you very much for your efforts and fixes.
Please, consider some minor changes in gnttab_request_version
I added the return code to it., because HYPERVISOR_grant_table_op could 
return -EFAULT, -EINVAL additional to -ENOSYS.
I attached the file.

Sergey Tovpeko.