On Mon, 2014-05-19 at 14:46 +0200, Alexander Graf wrote:

I don't see the point of VFIO knowing about guest addresses. They are 
not unique across a system and the whole idea that a VFIO device has to 
be owned by a guest is also pretty dubious.

I suppose what you really care about here is just a token for a specific 
device? But why do you need one where we don't have tokens yet?

I think this is going to be needed when doing in-kernel acceleration
of some of the RTAS calls, but yes, Gavin, why do we need that now ?

Cheers,
Ben.