Intel News Archives


2,937 Intel open-source and Linux related news articles on Phoronix since 2006.

Intel Posts New TDX Guest Attestation Patches To Verify Trustworthiness From 3rd Party Servers
Intel Posts New TDX Guest Attestation Patches To Verify Trustworthiness From 3rd Party Servers

Intel's open-source Linux engineers have been working a lot recently on the kernel's support for Trust Domain Extensions (TDX). Intel TDX has similarities to AMD's Secure Encrypted Virtualization (SEV) and is ultimately about better protecting virtual machines. The latest patch series published for Linux is the Intel TDX Guest Attestation support for being able to verify a TDX VM's trustworthiness via a third-party server.

23 February 2022 - TDX Guest Attestation - 7 Comments
Intel IBT Patches For Linux Back On Track
Intel IBT Patches For Linux Back On Track

Last month Intel posted a new set of Linux patches for shadow stack support as part of the Control-flow Enforcement Technology (CET) found within their latest processors. Also part of Intel's CET is Indirect Branch Tracking (IBT) while Intel said they were going to first focus on shadow stack (SS) and worry about IBT later. Less than one month later, new Indirect Branch Tracking patches for the Linux kernel have been taking shape.

20 February 2022 - Indirect Branch Tracking - Add A Comment
Intel's ENQCMD For Linux Ready To Be Re-Enabled - No Longer "Broken Beyond Repair"
Intel's ENQCMD For Linux Ready To Be Re-Enabled - No Longer "Broken Beyond Repair"

Last June the Linux kernel disabled support for Intel's ENQCMD instructions as the kernel support was found to be "broken beyond repair" for this feature that's part of the Data Streaming Accelerator with upcoming Xeon Scalable "Sapphire Rapids" processors. Fortunately, now in time for Sapphire Rapids ramping up, Intel engineers have fixed up the ENQCMD code and looks like the next Linux kernel cycle will re-enable the functionality.

15 February 2022 - Sapphire Rapids - 4 Comments
Intel's Compute-Runtime Adds GPU Hang Detection

Intel's open-source Compute-Runtime stack for providing OpenCL and Level Zero support for Skylake/Gen9 graphics and newer up through their latest discrete graphics offerings is out with a new release.

14 February 2022 - GPU Hang Detection - 1 Comment
Intel PECI Code To Be Mainlined With Linux 5.18
Intel PECI Code To Be Mainlined With Linux 5.18

Linux 5.18 is looking to be another very busy kernel cycle for Intel as in addition to Alder Lake N graphics, the Intel Hardware Feedback Interface (HFI), and integrating Software Defined Silicon (SDSi), Intel's PECI kernel code is finally being mainlined.

10 February 2022 - Platform Environment Control Interface - 4 Comments
Intel Software Defined Silicon Planned For Integration In Linux 5.18
Intel Software Defined Silicon Planned For Integration In Linux 5.18

We still don't know what features Intel is planning to capitalize upon with their Software Defined Silicon "SDSi" functionality in future CPUs, but it turns out the kernel mainlining of the necessary software support is now expanded to land with Linux 5.18. With the SDSi kernel support coming together rather quickly, it's possible we could be seeing Software Defined Silicon rather soon.

9 February 2022 - Intel SDSi - 50 Comments
Intel Core i9 12900K "Alder Lake" Continues Moving In Right Direction With Linux 5.17
Intel Core i9 12900K "Alder Lake" Continues Moving In Right Direction With Linux 5.17

Linux 5.16 brought improvements/fixes for Alder Lake S to help the likes of the Core i9 12900K deliver better performance. With the in-development Linux 5.17, the i9-12900K is looking even better. And then on the horizon for Linux 5.18 is the possibility of even better performance thanks to Intel's Hardware Feedback Interface (HFI/EHFI) positioned to land.

8 February 2022 - Intel Core i9 12900K - 9 Comments
Intel Graphics System Controller Support Getting Buttoned Up For Linux
Intel Graphics System Controller Support Getting Buttoned Up For Linux

While much of the Intel DG2/Alchemist open-source driver support has already been upstreamed into the Linux kernel, Mesa for OpenGL and Vulkan, and related components like IGC and Compute-Runtime, there are various bits still pending ahead of the Intel Arc graphics cards set to make their debut in the next few months. One of those pieces still working their way upstream is enabling the GSC block, the Graphics System Controller.

7 February 2022 - Intel GSC - Add A Comment
Intel Publishes 2021 Product Security Report
Intel Publishes 2021 Product Security Report

Intel today published their annual security report that provides various insights into the different security vulnerabilities disclosed and mitigated over the past calendar year.

3 February 2022 - Intel Security Report - 3 Comments
Intel Revs New Linux Patches Providing For Shadow Stacks For User-Space
Intel Revs New Linux Patches Providing For Shadow Stacks For User-Space

For years Intel has been working on Linux patches for supporting their Control-Flow Enforcement Technology (CET) with Indirect Branch Tracking and Shadow Stack support. It's been in the works for years and through many revisions while now they are pursuing a new route and focusing just on the Shadow Stack user-space functionality.

31 January 2022 - CET Shadow Stack - 3 Comments
Intel Linux Driver Adds New DG2 "G12" Graphics Variant
Intel Linux Driver Adds New DG2 "G12" Graphics Variant

To date the Intel Linux graphics driver has supported Intel's DG2 "Alchemist" G10 and G11 sub-platforms/variants as the main designs to this point. However, at the end of last year we began seeing "G12" references surface in their compute stack and now the Intel open-source Linux kernel driver is formally preparing the DG2-G12 variant support.

20 January 2022 - Intel DG2-G12 - 5 Comments
Intel's Unaccepted Memory Support Updated For Substantially Faster Booting Of TDX VMs
Intel's Unaccepted Memory Support Updated For Substantially Faster Booting Of TDX VMs

Way back in August Intel posted a set of Linux kernel patches for supporting "unaccepted memory" by the Linux kernel in preparation for next-generation Xeon processors and speeding up the boot time for guest virtual machines making use of Intel's Trust Domain Extensions (TDX) security feature. Unaccepted memory support hasn't yet made it to the mainline kernel but now a second iteration of the patches have been posted.

20 January 2022 - Unaccepted Memory - Add A Comment
Intel ISPC 1.17 Compiler Released With Xe HPG, PS5 & AMD Zen Support
Intel ISPC 1.17 Compiler Released With Xe HPG, PS5 & AMD Zen Support

Intel ended out the week with a huge update to ISPC, the Intel Implicit SPMD Program Compiler. ISPC is Intel's LLVM-based compiler focused on its C variant with extensions for single program, multiple data (SPMD) programming. Interestingly with this release is the introduction of AMD Zen 1/2/3 targeting and even the PlayStation 5 while also adding support for forthcoming Intel Arc "Alchemist" (Xe HPG) hardware.

15 January 2022 - Intel SPMD Program Compiler - 5 Comments
Intel's Linux Graphics Driver Continues With Multi-Tile Preparations
Intel's Linux Graphics Driver Continues With Multi-Tile Preparations

In addition to Intel's open-source Linux graphics driver developers being quite busy preparing for upcoming Intel Arc "Alchemist" (DG2) graphics cards on the consumer side, they have concurrently been preparing for Xe HP "Ponte Vecchio" hardware too. One of the big undertakings on that side from the driver perspective is bringing up multiple tiles.

14 January 2022 - Multi-Tile Patches - 9 Comments

2937 Intel news articles published on Phoronix.