> From: Jason Gunthorpe <jgg@xxxxxxxxxx> > Sent: Monday, July 17, 2023 8:34 PM > > On Mon, Jul 17, 2023 at 06:36:19AM +0000, Liu, Yi L wrote: > > Hi Alex, Jason, > > > > I found a minor nit on the kconfig. The below configuration is valid. > > But user cannot use vfio directly as there is no /dev/vfio/vfio. Although > > user can open /dev/iommu instead. This is not good. > > > > CONFIG_IOMMUFD=y > > CONFIG_VFIO_DEVICE_CDEv=n > > CONFIG_VFIO_GROUP=y > > CONFIG_VFIO_CONTAINER=n > > CONFIG_IOMMUFD_VFIO_CONTAINER=n > > > > So need to have the below change. I'll incorporate this change in > > this series after your ack. > > This is fine, we decided to allow this in the original vfio series. It > is usable in that you have to use iommufd natively with the group > interface. It won't be backwards compatible with current userspace. Sure. I'll keep the current code. Regards, Yi Liu
