Virtualization News Archives
The KVM Changes Aren't Too Notable For Linux 5.1, But Many x86 Cleanups

Paolo Bonzini submitted the Kernel-based Virtual Machine (KVM) changes for the Linux 5.1 kernel on Friday, much later in the cycle than normal. This isn't due to some big ticket features landing but rather "some ugly factors" in the form of tracking down some bugs and ended up dropping some premature optimizations.

17 March 2019 - KVM For Linux 5.1 - Add A Comment
Preliminary Support Allows Linux KVM To Boot Xen HVM Guests

As one of the most interesting patch series sent over by an Oracle developer in quite a while at least on the virtualization front, a "request for comments" series was sent out on Wednesday that would enable the Linux Kernel-based Virtual Machine (KVM) to be able to boot Xen HVM guests.

21 February 2019 - Kernel-based VM Booting Xen HVM - 2 Comments
Virgl Lands A Number Of Performance Optimizations In Mesa 19.1

For those using the Virgl3D driver stack for having OpenGL acceleration within KVM guest VMs with VirtIO-GPU that is then accelerated by hosts, there are performance optimizations that have just landed in the Mesa 19.1 development code.

15 February 2019 - Mesa 19.1 + Virgl Performance - 1 Comment
LXD For Linux Containers Had A Very Fruitful 2018

While Canonical often takes heat for their various project "forks", their work on LXD for further innovating atop LXC for Linux containers has really paid off. Over the past few years LXD has really evolved into quite a capable system container manager beast.

4 February 2019 - LXD 2018 - 13 Comments
Many Linux x86_64 KVM Changes Ready To Go For Linux 4.21

Paolo Bonzini submitted the Kernel-based Virtual Machine (KVM) changes on Sunday for the now-open Linux 4.21 kernel merge window. The x86/x86_64 KVM changes represent most of the work this cycle but there are also POWER and ARM changes too.

24 December 2018 - Linux 4.21 KVM - 1 Comment
QEMU 3.1 Released For Advancing The Linux Open-Source Virtualization Stack

The QEMU emulator that is widely used by the open-source Linux virtualization stack is out with its version 3.1 feature release. This is the QEMU update that is adding multi-threaded Tiny Code Generator support, display improvements, adds the Cortex-A72 model and other ARM improvements, and various other enhancements.

13 December 2018 - QEMU 3.1 - 7 Comments
ROE Kernel Hardening Continues To Restrict KVM VMs To Only Its Own Memory

For helping to enhance the security of servers running KVM for virtualization, there's been a ROE protection kernel hardening patch series in the works. This new addition to the kernel allows the host operating system to restrict a guest's access strictly to its own memory. It's unclear though yet if the ROE protection will make the cut in time for the upcoming Linux 4.21 kernel cycle.

8 December 2018 - ROE Protection Kernel Hardening - 4 Comments
QEMU Making Progress With Legacy-Free Display Support - Avoids Old VGA Code

As part of QEMU's emulated display support they have long had a lot of old VGA/SVGA support code around. But as that code is overly complex, has been prone to security issues, and less used these days with modern interfaces, the developers behind this important piece of the open-source virtualization stack have been working on eliminating the legacy display support.

26 October 2018 - QEMU Bochs Display Device - 13 Comments

368 Virtualization news articles published on Phoronix.