VFIO Adds Sample Mediated Device Display Drivers

[phoronix]

Phoronix: VFIO Adds Sample Mediated Device Display Drivers

The VFIO framework that allows exposing direct device access to user-space in a secure, IOMMU-protected fashion is gaining some new sample drivers in Linux 4.18...

http://www.phoronix.com/scan.php?page=news_item&px=Linux-4.18-VFIO

[Jabberwocky]

Would this allow multiple VMs to share a single device concurrently without SR_IOV? If not, is it even possible to do such a thing in a robust manner?

Reading vfio-mediated-device.txt I noticed that it's intended for various devices

This framework is used for multiple devices, such as GPUs, network adapters, and compute accelerators

It would be awesome if I could use this to keep my GPU and USB controller active between virtual machine reboots.

[tildearrow]

Typo:

With the Linux 4.18 kernel there are new VFIO mediated device "mdev" sample dirvers.