Re: [PATCH v5] vhost: introduce mdev based hardware backend

[Jason Wang]

On 2019/11/6 äå10:39, Tiwei Bie wrote:
> On Wed, Nov 06, 2019 at 07:59:02AM -0500, Michael S. Tsirkin wrote:
> > On Tue, Nov 05, 2019 at 07:53:32PM +0800, Tiwei Bie wrote:
> > > This patch introduces a mdev based hardware vhost backend.
> > > This backend is built on top of the same abstraction used
> > > in virtio-mdev and provides a generic vhost interface for
> > > userspace to accelerate the virtio devices in guest.
> > >
> > > This backend is implemented as a mdev device driver on top
> > > of the same mdev device ops used in virtio-mdev but using
> > > a different mdev class id, and it will register the device
> > > as a VFIO device for userspace to use. Userspace can setup
> > > the IOMMU with the existing VFIO container/group APIs and
> > > then get the device fd with the device name. After getting
> > > the device fd, userspace can use vhost ioctls on top of it
> > > to setup the backend.
> > >
> > > Signed-off-by: Tiwei Bie <tiwei.bie@xxxxxxxxx>
> > So at this point, looks like the only thing missing is IFC, and then all
> > these patches can go in.
> > But as IFC is still being worked on anyway, it makes sense to
> > address the minor comments manwhile so we don't need
> > patches on top.
> > Right?
> Yeah, of course.
>
> Thanks,
> Tiwei


Please send V6 and I will ack there.

Thanks