1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Memory Protection Extensions Not Done For Linux 3.14

Linux Kernel

Published on 21 January 2014 01:46 AM EST
Written by Michael Larabel in Linux Kernel
5 Comments

The Intel MPX support, a feature of next year's "Skylake" processors, isn't yet done for the Linux kernel but the early infrastructure work will land with the Linux 3.14 kernel.

Submitted on Monday by Peter Anvin for the Linux 3.14 merge window is the basic infrastructure work for Memory Protection Extensions, a feature coming to Intel CPUs beginning with next year's Skylake -- not to be confused with the Broadwell CPUs shipping in a few months.

MPX is a new x86 instruction extension and set of registers that bring greater security through checking pointer references for fending off buffer overflows.

Intel MPX isn't just implemented as a kernel feature but also requires changes to the compiler and run-time libraries.

For those not familiar with Intel Memory Protection Extensions I had written about MPX support still baking for Linux earlier this month.

The initial MPX kernel work was part of the x86/cpufeature pull request and introduces the basic kernel infrastructure for this feature. This pull request doesn't provide MPX support itself but just the basic support. This early support was landed for the KVM support for MPX that is expected to land later in the 3.14 merge window.

More details on this early kernel work for Intel MPX can be found via this pull request.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Even With Re-Clocking, Nouveau Remains Behind NVIDIA's Proprietary Linux Driver
  2. The Power Consumption & Efficiency Of Open-Source GPU Drivers
  3. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  4. Intel Pentium G3258 On Linux
Latest Linux Articles
  1. Updated Source Engine Benchmarks On The Latest AMD/NVIDIA Linux Drivers
  2. Nouveau vs. Radeon vs. Intel Tests On Linux 3.16, Mesa 10.3-devel
  3. KVM Benchmarks On Ubuntu 14.10
  4. X.Org Server 1.16 Officially Released With Terrific Features
Latest Linux News
  1. GNOME/GTK On Wayland Gains Focus At GUADEC
  2. GNOME Stakeholders Take Issue With Groupon Over their Gnome
  3. GStreamer VA-API Plug-In Update Adds New Features
  4. Qt 5.4 Going Into Feature Freeze Next Week With Exciting Changes
  5. OpenSUSE Factory Turns Into Rolling Release Distribution
  6. "The World's Most Highly-Assured OS" Kernel Open-Sourced
  7. NVIDIA Is Working Towards VDPAU H.265/HEVC Support
  8. Hawaii Bug-Fixes Start Hitting Mainline RadeonSI Gallium3D
  9. The FFmpeg vs. Libav War Continues In Debian Land
  10. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
Latest Forum Discussions
  1. AMD Athlon 5350 APU On Linux
  2. Grand Theft Auto Running On Direct3D Natively On Linux Shows Gallium3D Potential
  3. Linus Torvalds On GCC 4.9: Pure & Utter Crap
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Debian + radeonsi
  6. Open-source drivers on ATI R7 260X
  7. List of Linux friendly Kickstarter projects
  8. Porting Mesa to the Playstation 2