Re: [Xen-devel] [PATCH RFC 1/3] virtio infrastructure

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Santos, Jose Renato G wrote:
>   It seems that we will still need specific devices drivers
>   for each different virtualization flavor. For example,
>   we will still need to have a specific Xen netfront 
>   device that talks to a backend device in dom0, using
>   page grants, and other Xen specific mechanisms.
>   It looks like  will still need to maintain all the virtual device 
>   drivers and in addition we will now have to maintain 
>   another virtualization layer. 
>   

The hope is that the Xen-specific elements of the driver will be
restricted to Xen-specific things like grant tables, and the bulk of the
driver and its logic can be common.  Whether that can be achieved and
still retain the full performance/features of the entirely Xen-specific
netfront driver remains to be seen.  I haven't had a chance to look at
doing any Xen-virtio glue yet, so I'm not really sure how it will work out.

    J

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