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. Gigabyte AM1M-S2H
  2. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
  3. 13-Way Low-End GPU Comparison With AMD's AM1 Athlon
  4. ASUS AM1I-A: A Mini-ITX Board For Socketed Kabini APUs
Latest Linux Articles
  1. How Much Video RAM Is Needed For Catalyst R3 Graphics?
  2. Ubuntu 12.04 LTS vs. 14.04 LTS Cloud Benchmarks
  3. Ubuntu 12.04.4 vs. 13.10 vs. 14.04 LTS Desktop Benchmarks
  4. AMD OpenCL Performance With AM1 Kabini APUs
Latest Linux News
  1. Oracle Linux 6.5 vs. Oracle Linux 7.0 Beta Benchmarks
  2. Easter Yields The Linux 3.15-rc2 Kernel Release
  3. The Most Amazing OpenGL Tech Demo In 64kb
  4. Packard Bell LM85 Now Supported By Coreboot
  5. AmazonBasics External USB 2.0 DVD Writer For Linux
  6. TP-LINK TG-3468: A $12 Linux PCI-E Gigabit Network Adapter
  7. Linux 3.15 Lands Some DRM Graphics Driver Fixes
  8. AMD Is Disabling DPM Support For RV770 GPUs
  9. ReactOS Working On A Community Windows OS
  10. eRacks Keeps Pushing Linux, Open-Source Systems After 15 Years
  11. Borderlands Is Being Considered For Linux
  12. Mesa 10.0 & 10.1 Stable Get Updated
Latest Forum Discussions
  1. ReactOS Working On A Community Windows OS
  2. The GNOME Foundation Is Running Short On Money
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Catalyst 14.3 Beta
  5. Suggestions about how to make a Radeon HD 7790 work decently?
  6. Radeon 8000M problematic on Linux?
  7. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  8. After Jack Keane, RuseSoft will briing Ankh 3 to Linux through Desura