On Tue, 28 Jul 2015, David Vrabel wrote:
> On 28/07/15 16:02, Julien Grall wrote:
> > 
> > +/* Pseudo-physical <-> DMA conversion */
> > +static inline unsigned long pfn_to_dfn(unsigned long pfn)
> 
> Use BFN for bus frame number.  This is the terminology that is used in
> the (proposed) pv-iommu hypercall.

Yes, certainly better than DFN.
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