Re: [RFC] Upstreaming virtio-wayland (or an alternative)

[David Stevens <stevensd@chromium.org>]

> FD <-> VFD mappings would have to be created
> by the subsystem in charge of the object backing the FD (virtio-gpu for
> exported GEM buffers, virtio-vdec for video buffers, vsock for unix
> sockets if we decide to bridge unix and vsock sockets to make it
> transparent, ...). The FD <-> VFD mapping would also have to be created
> on the host side, probably by the virtio device implementation
> (virglrenderer for GEM bufs for instance), which means host and guest
> need a way to inform the other end that a new FD <-> VFD mapping has
> been created so the other end can create a similar mapping (I guess this
> requires extra device-specific commands to work).

My recent proposal for cross device resource sharing seems like it
could be relevant here: https://markmail.org/thread/jsaoqy7phrqdcpqu.


-David