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Virtualization Feed

Xen Hypervisor, KVM Hypervisor and Oracle virtualization resources, news, and support articles.

Future of Xen Project – Video Spotlight with ARM’s Thomas Molgaard

ARM joined Xen Project two years ago as part of its drive into servers, networking and the emerging “Internet of Things” markets. In our latest “Future of Xen” video, Thomas Molgaard, Manager of Software Marketing – Systems & Software at ARM, talks about changes unfolding in enterprise and cloud computing that are creating new opportunities for his company and virtualization.

Xen Project now in OpenStack Nova Hypervisor Driver Quality Group B

A few weeks ago, we introduced the Xen Project – OpenStack CI Loop, which is testing Nova commits against the Xen Project Hypervisor and Libvirt. Xen Project community is pleased to announce that we have moved from Quality Group C to B, as we’ve made significant progress in the last few weeks and the Xen Project CI loop is now voting on Nova commits.

Once again about pros/cons of Systemd and Upstart

Upstart advantages.
1. Upstart is simpler for porting on the systems other than Linux while systemd is very rigidly tied on Linux kernel opportunities.Adaptation of Upstart for work in Debian GNU/kFreeBSD and Debian GNU/Hurd looks quite real task that it is impossible to tell about systemd;
2. Upstart is more habitual for the Debian developers, many of which in combination participate in development of Ubuntu. Two members of Technical committee Debian (Steve Langasek and Colin Watson) are a part of group of the Upstart developers.

Hardening Hypervisors Against VENOM-Style Attacks

This is a guest blog post by Tamas K. Lengyel, a long-time open source enthusiast and Xen contributor. Tamas works as a Senior Security Researcher at Novetta, while finishing his PhD on the topic of malware analysis and virtualization security at the University of Connecticut.

RDO Kilo Three Node Setup for Controller+Network+Compute (ML2&OVS&VXLAN) on CentOS 7.1

Following bellow is brief instruction  for traditional three node deployment test Controller&&Network&&Compute for oncoming RDO Kilo, which was performed on Fedora 21 host with KVM/Libvirt Hypervisor (16 GB RAM, Intel Core i7-4771 Haswell CPU, ASUS Z97-P ) Three VMs (4 GB RAM,2 VCPUS)  have been setup. Controller VM one (management subnet) VNIC, Network Node VM three VNICS (management,vtep’s external subnets), Compute Node VM two VNICS (management,vtep’s subnets)
SELINUX stays in enforcing mode.
Three Libvirt networks created

Xen Project Hackathon 15 Event Report

After spending almost a week in Shanghai for the Xen Project Hackathon it is time to write up some notes.

More than 48 delegates from Alibaba, Citrix, Desay SV Automotive, GlobalLogic, Fujitsu, Huawei, Intel, Oracle, Suse and Visteon Electronics attended the event, which covered a wide range of topics.

I wanted to thank Susie Li, Hongbo Wang and Mei Yu from Intel for funding and organizing the event.

Connecting EMC/NetApp shelves as JBOD to a Linux machine

Let’s say you have old shelves of either EMC or NetApp with SAS or SATA disks in them. And let’s say you want to connect them via FC to a Linux machine and have some nice ZFS machine/cluster, or whatever else. There are few things to know, and to attend in order for it to work.

Introducing the Xen Project – OpenStack CI Loop

We recently introduced the new Xen Project Test Lab, a key piece of infrastructure to improve the quality of our code and code coverage. As stated earlier, “we are serious and proactive when it comes to minimising and, whenever possible, eliminating any adverse effects from defects, security vulnerabilities or performance problems”.

Why Unikernels Can Improve Internet Security

This is a reprint of a 3-part unikernel series published on In this post, Xen Project Advisory Board Chairman Lars Kurth explains how unikernels address security and allow for the careful management of particularly critical portions of an organization’s data and processing needs. (See part one, 7 Unikernel Projects to Take On Docker in 2015.)

7 Unikernel Projects to Take On Docker in 2015

This is a reprint of a 3-part unikernel series published on In part one, Xen Project Advisory Board Chairman Lars Kurth takes a closer look at the rise of unikernels and several up-and-coming projects to keep close tabs on in the coming months.

Docker and Linux container technologies dominate headlines today as a powerful, easy way to package applications, especially as cloud computing becomes more mainstream. While still a work-in-progress, they offer a simple, clean and lean way to distribute application workloads.

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