[Xen-devel] [PATCH 2/8] xen: Make clear that swiotlb and biomerge are dealing with DMA address
From: David Vrabel <hidden>
Date: 2015-07-28 15:52:12
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lkml
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. David