All of the Virtual Function I/O (VFIO) driver updates were merged this week as we reach the end of the [1]Linux 6.14 merge window.

There are a few minor VFIO core changes while the lone change worth really mentioning for VFIO in Linux 6.14 is on the NVIDIA side. NVIDIA's "nvgrace-gpu" VFIO PCI driver is being extended to support the new Grace Blackwell "GB" hardware:

"Update nvgrace-gpu vfio-pci variant driver for new Grace Blackwell hardware, conditionalizing the uncached BAR workaround for previous generation hardware based on the presence of a flag in a new DVSEC capability, and include a delay during probe for link training to complete, a new requirement for GB devices."

That code is now merged via [2]the VFIO pull request as one new bit of NVIDIA Grace Blackwell support in the upstream Linux 6.14 kernel.



[1] https://www.phoronix.com/search/Linux+6.14

[2] https://lore.kernel.org/lkml/20250128142439.3f6dd5b7.alex.williamson@redhat.com/