Xen Project (Hypervisor)

Some time ago Konrad Rzeszutek Wilk (the Xen Linux maintainer) came up with a list of possible improvements to the Xen PV block protocol, which is used by Xen guests to reduce the overhead of emulated disks. This document is quite long, and the list of possible improvements is also not small, so we decided [...]

This is a joint blog post by Anil Madhavapeddy and Lars Kurth Xen Project As in previous years, the Xen Project had a presence at OSCON again. This year, we did not have our own booth: Citrix donated some space to a number of different open source projects in their Open @ Citrix booth and [...]

My name is Julien Grall.  I joined the Citrix Open Source team few months ago to work on Xen on ARM with Ian Campbell and Stefano Stabellini. Since Citrix has joined the Linaro Enterprise Group (LEG), I’m also part of the virtualization team which takes care of Xen, KVM and QEMU within Linaro. A couple of weeks [...]

This has already been a banner year for the Xen Project.  We have already seen the 10th anniversary of the project, the birth of Xen as a Linux Foundation Collaboration Project, and the release of version 4.3 of the Xen Project software.  More than that, this is also the first year we are hosting three [...]

So, how many of you use Debian? I bet a lot. Well, here it is what the Debian Xen package maintainers told The Xen Project, when asked a few questions. We are talking about Bastian Blank and Guido Trotter. In fact, they share the burden, with Bastian doing “most of the work nowadays” (Guido’s words) [...]

Xenproject.org is pleased to announce the release of Xen 4.3.0. The release is available from the download page: Xen 4.3.0: Download, Source (tag RELEASE-4.3.0), release notes. Xen 4.3 is the work of just over 9 months of development, with 1362 changesets containing changes to over 136128 lines of code, made by 90 individuals from 27 [...]

As many of you might have (inevitably) noticed, Xen frontend / backend network drivers in Linux suffered from regression several months back after the XSA-39 fix (various reports here, here and here). Fortunately that’s now fixed (see the most ... [More] important patch of that series) and the back-porting process to stable kernels is on-going. Now that [...] [Less]

Xen 4.3.0 time is approaching and, to make sure we’re delivering the best possible release, we are having another Xen TestDay on Friday, June 28 2013. (RSVP and iCal here). We will be testing Xen 4.3.0-RC6, that will be tagged on Thursday. It will ship two really important changes (as compared to RC5) about PCI [...]

Today, Citrix announced that XenServer would be fully open sourced and that it will be made available from XenServer.org. First, I wanted to remind everyone that XenServer always has been based on open source software: containing the Xen hypervisor ... [More] , the Linux kernel, the CentOS Linux distribution and user tools. However many XenServer components were proprietary. In [...] [Less]