[PATCH 10/10] vfio/pci: Add dma-buf export support for MMIO regions

[Leon Romanovsky]

On Tue, Jul 29, 2025 at 05:13:51PM -0300, Jason Gunthorpe wrote:
> On Tue, Jul 29, 2025 at 08:44:21PM +0100, Robin Murphy wrote:
> 
> > In this case with just one single
> > contiguous mapping, it is clearly objectively worse to have to bounce in and
> > out of the IOMMU layer 3 separate times and store a dma_map_state,
> 
> The non-contiguous mappings are comming back, it was in earlier drafts
> of this. Regardless, the point is to show how to use the general API
> that we would want to bring into the DRM drivers that don't have
> contiguity even though VFIO is a bit special.

Yes, we will see comeback of DMA ranges in v2.

Thanks