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Kernel: Bootlin, Intel, and VFIO

Submitted by Roy Schestowitz on Thursday 25th of February 2021 11:41:24 PM Filed under
Linux

  • Videos and slides of Bootlin presentations at FOSDEM

    The videos from Bootlin’s presentations earlier this month at FOSDEM 2021 are now publicly available. Once again, FOSDEM was a busy event, even if it was online for once. As in most technical conferences, Bootlin engineers volunteered to share their experience and research by giving two talks.

  • Intel's Simple Firmware Interface Being Killed Off With Linux 5.12 - Phoronix

    Intel's "Simple Firmware Interface" that dates back to the company's early Atom-powered mobile days is being eliminated with the in-development Linux 5.12 kernel.

    More than one decade ago with the Intel Moorestown platform, Simple Firmware Interface (SFI) was envisioned as a solution for lightweight devices in place of a complete ACPI implementation. Intel hasn't employed the Simple Firmware Interface as part of their platform design in years while ACPI is alive and well. Last year Intel engineers marked SFI as "obsolete" within the Linux kernel and confirmed Intel had no plans of resurrecting the Simple Firmware Interface.

  • VFIO Gets Batched Page Pinning For An Easy Performance Improvement With Linux 5.12 - Phoronix

    The VFIO changes to the Linux 5.12 kernel include an optimization worth mentioning.

    The VFIO driver work for Linux 5.12 isn't too significant but the batched page pinning will be of interest to some. Up to now the VFIO kernel code has relied on pinning one 4K page at a time. That major efficiency bottleneck has been addressed with the batched page pinning to handle batches of 512 at a time.

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