Xen Day Barcelona 2012, November 8 @ LinuxCon Europe
Xen
Day Barcelona is a free morning of talks and interactive
discussions people interested in Xen. A number of Xen developers
will be at Xen Day: this is your chance to ask them questions that
you always wanted to ask. To attend Xen Day, you do not need to
register for LinuxCon. As spaces are limited and more than half
have been allocated, we do ask you to register
for the Xen Day.
Agenda
Virtualization in the Cloud: Featuring Xen and XCP (Lars Kurth)
The Xen Hypervisor was built for the Cloud from the outset: when
Xen was designed, we anticipated a world, which today is known as
cloud computing. Today, Xen powers the largest clouds in
production. This talk introduces Xen, XCP and introduces their
architectures. The talk will shine some light challenges such as
securing the cloud, and will introduce the concept of domain
disaggregation as an approach to increase security, robustness and
scalability. We will conclude with an update on exciting
developments in the Xen community and their implications for
building open source clouds.
Xen on ARM Cortex A15 (Ian Campbell, Xen Committer and Linux
Maintainer)
During the last few months of 2011 the Xen Community started an
effort to port Xen to ARMv7 and ARMv8 with virtualization
extensions, using the Cortex A15 processor as reference
platform.The new Xen port is exploiting this set of hardware
capabilities to run guest VMs in the most efficient way possible
while keeping the ARM specific changes to the hypervisor and the
Linux kernel to a minimum.
Developing the new port we took the chance to remove legacy
concepts like PV or HVM guests and only support a single kind of
guests that is comparable to "PV on HVM" in the Xen X86 world.
This talk will explain the reason behind this and other design
choices that we made during the early development process and it
will go through the main technical challenges that we had to solve
in order to accomplish our goal. Notable examples are the way
Linux guests issue hypercalls and receive event channels
notifications from Xen.
Xen 4.2 and xl (Ian Jackson, Xen Committer)
The Xen 4.2 release contains a production-ready version of the
new libxl toolstack library and its "xl" domain management
utility. We are recommending that everyone switch away from the
obsolete and unmaintained xm/xend toolstack. In this presentation
we will summarise the key differences, discuss how to do the
upgrade, and (network permitting) do a short demo.
Xen Benchmarks (Roger Pau Monne, Xen Developer)
Presentation of results regarding benchmarks performed against
KVM and Xen virtualization platforms. The benchmarks used to
realize this comparison are based on workloads that try to mimic
real uses of those products. Possible improvements to overcome the
limitations found will also be discussed.
Meet the Xen Developers
This is an open session, that you can use to ask the Xen
Developers any question you want. From solving concrete problems
that you may have, to discussing the evolution of Xen.
