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⇱ NVIDIA VFIO Driver Prepares For Blackwell With Linux 6.14 - Phoronix

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NVIDIA VFIO Driver Prepares For Blackwell With Linux 6.14

Written by Michael Larabel in Hardware on 31 January 2025 at 06:09 AM EST. Add A Comment
All of the Virtual Function I/O (VFIO) driver updates were merged this week as we reach the end of the 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 the VFIO pull request as one new bit of NVIDIA Grace Blackwell support in the upstream Linux 6.14 kernel.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.