Re: [RFC v3 00/18] vfio: Adopt iommufd

[Jason Gunthorpe]

On Tue, Jan 31, 2023 at 09:52:47PM +0100, Eric Auger wrote:
> Given some iommufd kernel limitations, the iommufd backend is
> not yuet fully on par with the legacy backend w.r.t. features like:
> - p2p mappings (you will see related error traces)
> - coherency tracking

You said this was a qemu side limitation?

> - live migration

The vfio kernel interfaces are deprecated,  Avihai's series here adds
live migration support:

https://lore.kernel.org/qemu-devel/20230126184948.10478-1-avihaih@nvidia.com/

And there will be another series for iommufd system iommu based live
migration

> - vfio pci device hot reset

What is needed here?

Jason