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The Xen Project™ develops virtualization technologies powering the world's largest clouds in production and is the foundation of many commercial products.

A Brief Introduction to the Xen Project and Virtualization from Mohsen Mostafa Jokar

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Mohsen Mostafa Jokar is a Linux administrator who works at the newspaper Hamshahri as a network and virtualization administrator. His interest in virtualization goes back to when he was at school and saw a Microsoft Virtual PC for the first time. He installed it on a PC with 256 MB of RAM and used it […]

Xen Project Release v4.8.2

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I am pleased to announce the release of Xen 4.8.2. Xen Project Maintenance releases are released in line with our Maintenance Release Policy. We recommend that all users of the 4.8 stable series update to the latest point release.The release is available from its git repository xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.8 (tag RELEASE-4.8.2) or from the XenProject download page […]

Xen: My GSoC experience: Fuzzing the hypervisor

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Five months ago, I had never even heard of fuzzing, but this summer, I worked on fuzzing the Xen Project hypervisor as a Google Summer of Code student. For everybody that is not familiar with fuzzing: it is a way to test interfaces. The most primitive form of it is to repeatedly generate random input […]

Recap of LinuxCon China and Xen Project’s Growth in the Region

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It’s been a very busy month or so for the Xen Project. During mid-June, I was lucky to attend and speak at LinuxCon + ContainerCon China held in Beijing. There I spoke on the topic of securing embedded systems with the hypervisor and live patching, virtual machine introspection and vulnerability management alongside my colleague Cheng Zhang of Citrix. […]

Xen Project 4.6.6 and 4.7.3 Are Available!

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I am pleased to announce the release of 4.6.6 and 4.7.3. Xen Project Maintenance releases are released in line with our Maintenance Release Policy. We recommend that all users of the 4.6 and 4.7 stable series update to the latest point release.4.6.6 The release is available from its git repository http://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.6 (tag RELEASE-4.6.6) or from […]

What’s New in the Xen Project Hypervisor 4.9?

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I am pleased to announce the release of the Xen Project Hypervisor 4.9. As always, we focused on improving code quality, security hardening as well as enabling new features. Our approach to security is also the reason why we delayed this release by 3 weeks: security issues that were discovered during the hardening phase of […]

Automotive, Security and the Future of the Xen Project at The Xen Project Developer and Design Summit

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The Xen Developer and Design Summit schedule is now live! This conference combines the formats of the Xen Project Developer Summits with the Xen Project Hackathons. If you are part of the Xen Project’s community of developers and power users, come join us in Budapest, Hungary, July 11 – 13 for this must-attend event! The […]

Xen: Announcing the Windows PV Console Driver

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It has long been the case that all HVM guests under Xen are provided with a PV console. You can attach to this console in the same way that you attach to the console of a PV guest, by typing in the control domain: xl console name_of_guest Until recently there has been no Windows PV […]

Xen Updates on XSA-213, XSA-214 and XSA-215

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Today we released three patches for the following vulnerabilities: XSA-213, XSA-214 and XSA-215. Xen Project follows industry-accepted best practices regarding software security. This includes observing an embargo period, during which time the Xen Project security team will assess, respond, and prepare patches fixing the vulnerability, and distribute them privately to software and cloud providers before […]

Download server change for Xen releases

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The official way to get the Xen hypervisor and other Xen Project downloads is via the the https://www.xenproject.org/ website. If you get Xen via the links on the website, you do not need to read the rest of this message.We are aware that some users have been visiting the download server directly. That download server […]

Announcing Xen Project 4.9 RC and Test Day Schedule

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Today, we created Xen 4.9 RC1 and will release a new release candidate every week, until we declare a release candidate as the final candidate and cut the Xen 4.9 release. We will also hold a Test Day every TUESDAY for the release candidate that was released the week prior to the Test Day starting […]

Xen Project 4.8.1 Released

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I am pleased to announce the release of Xen 4.8.1. Xen Project Maintenance releases are released in line with our Maintenance Release Policy. We recommend that all users of the 4.8 stable series update to the latest point release.The release is available from its git repository http://xenbits.xen.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.8 (tag RELEASE-4.8.1) or from the XenProject download page […]

Q&A with GlobalLogic on the Xen Project and Automotive Virtualization

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The Xen Project is commonly used in embedded scenarios due to its security features, light-weight architecture and open source community. These core attributes are now making it more pervasive in the automotive industry, which has similar demands to the embedded industry, especially when it comes to security requirements. To better understand how the Xen Project […]

Xen Hypervisor to be Rewritten

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The hypervisor team has come to the conclusion that using the C programming language, which is 45 years old as of writing, is not a good idea for the long term success of the project. C, without doubt, is ridden with quirks and undefined behaviours. Even the most experienced developers find this collection of powerful […]

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