Re: [Xen-devel] [PATCH 2/8] xen: Make clear that swiotlb and biomerge are dealing with DMA address

From: Julien Grall
Date: Tue Jul 28 2015 - 12:06:59 EST


Hi David,

On 28/07/15 16:52, 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.

Good idea, I will use them in the next version.

Regards,

--
Julien Grall
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