Language Selection

English French German Italian Portuguese Spanish

Linux 5.13 Additions/Work: KVM, Clang, and More

Filed under
Linux

  • KVM With Linux 5.13 Has AMD SEV Improvements, Intel SGX For Guests

    Along with this week's release of QEMU 6.0, exciting on the Linux virtualization front are the KVM changes that are ready to go with the 5.13 kernel. 

    Linux 5.13 is bringing a number of KVM improvements especially as it pertains to Intel/AMD processor features. 

    The AMD code in particular has seen some shiny new feature work. The changes for Linux 5.13 do include a new KVM API for supporting AMD Secure Encrypted Virtualization (SEV) live migration of guests. However, the guest API didn't get completed in time for the Linux 5.13 cycle. Also on the AMD SEV front there is now support for AMD SEV virtual machines to share the same encryption context if desired, such as if having multiple VMs spawned by the same user. The AMD code path now supports virtual SPEC_CTRL handling so that the hypervisor doesn't need to intervene for speculation control (SPEC_CTRL_MSR) handling. The AMD code also has improved SYSENTER emulation for the 5.13 kernel. 

  •   
      

      

  • Clang CFI Support Upstreamed For Linux 5.13 - But Only On ARM64 For Now - Phoronix

    Clang's Control-Flow Integrity provides run-time checks before every indirect function call to ensure the target is a valid function with a valid static type. Clang CFI is implemented as a sanitizer and requires link-time optimizations (LTO) be enabled and thus was blocked until that support first landed in the kernel. Clang CFI can be benficial at ensuring the intended control flow of the software doesn't change and generally at a cost of ~1% or less to the run-time performance. 

  •  

  • Apple Magic Mouse 2, Microsoft SAM Support Added For Linux 5.13

    When it comes to Apple hardware support in the Linux 5.13 kernel not only is support for the Apple M1 SoCs added but the Magic Mouse 2 is also finally being supported in full by the mainline kernel. Plus there are other various interesting HID subsystem updates too this kernel cycle. 

    As previously reported, the Apple Magic Mouse 2 has worked on Linux with the generic HID input code while there has also been out-of-tree / DKMS module support for this Apple mouse. Now with Linux 5.13, the hid-magicmouse kernel driver is extended to cover the Magic Mouse 2. 

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.