Re: [PATCH 1/2] powerpc: iommu: Bring back table group release_ownership() call

[Jason Gunthorpe]

On Fri, Jan 26, 2024 at 08:43:12PM +0530, Shivaprasad G Bhat wrote:
> > Also, is there any chance someone can work on actually fixing this to
> > be a proper iommu driver? I think that will become important for power
> > to use the common dma_iommu code in the next year...
> We are looking into it.

Okay, let me know, I can possibly help make parts of this happen

power is the last still-current architecture to be outside the modern
IOMMU and DMA API design and I'm going to start proposing things that
will not be efficient on power because of this.

I think a basic iommu driver using the dma API would not be so hard.

I don't know what to do about the SPAPR VFIO mess though. :(

Jason