On Mon, Jan 08, 2018 at 12:49:50PM -0700, Jason Gunthorpe wrote:
Pretty sure P2P capable IOMMU hardware exists.
With SOC's we also have the scenario that an DMA originated from an
on-die device wishes to target an off-die PCI BAR (through the IOMMU),
that definitely exists today, and people care about it :)
Then people will have to help and contribute support for it.