Re: [PATCH v5 8/9] vfio/pci: Enable peer-to-peer DMA transactions by default

Christoph Hellwig
2025-10-22T07:08:53Z

On Mon, Oct 20, 2025 at 10:08:55AM -0300, Jason Gunthorpe wrote:
> Sure, but this should be handled by the P2P subsystem and PCI quirks,
> IMHO. It isn't VFIOs job.. If people complain about broken HW then it
> is easy to add those things.

I think it is. You now open up behavior generally that previously
had specific drivers in charge.

> IDK where Intel GPU lands on this, but VFIO has always supported P2P

How?