From Samuel Thibault: The traditional way to configure a PV guest is to write in the configuration file the path to the kernel/initrd to be loaded. However, logically enough, these should be on the PV guest disk image, to allow them to be managed by the distribution installed
From Samuel Thibault: To provide HVM domains with virtual hardware, Xen uses a modified version of qemu, ioemu. It used to run in dom0 as a root process, since it needs to directly access disks and tap network. That poses both a problem of security, as the qemu
From Samuel Thibault: Domain 0 running a lot of components like physical device drivers, the domain builder, ioemu device models, PyGRUB, etc. has been worrisome from a security point of view, particularly since most of them run as root, and thus breaches there would potentially be disastrous. It also
Shadow 3 is the next step in the evolution of the shadow pagetable code. By making the shadow pagetables behave more like a TLB, we take advantage of guest operating system TLB behavior to reduce and coalesce the number of guest pagetable changes that the hypervisor has to translate
I am currently working on the Xen.org Community Plans for 2009 Xen Summits and I wanted to share my thoughts with the community to get feedback on my ideas. In the past, Xen Summits have been held every 9 months with the majority of them being in North America.
Xen.org Community: As part of the Xen 3.3 release, I have asked the various development authors to supply me with information on their new features. Over the next few weeks, I will be posting their overviews to this blog to give everyone further information on the features in
Xen.org Community: As many of you are aware, I have been working the past few months to update the current Xen.org website to better target various users of the site as well as simplify the organization of the information. I have completed the web development and am now
I have just posted Ian Pratt’s slides from LinuxWorld at http://www.xen.org/files/IanPrattlinuxworld-xen-Aug2008.pdf. Feel free to take a look…
Good news: The probably well-known (though still in beta), Xen-based service EC2 from Amazon is getting a new feature, that some(at least myself di) might have missed since a while: Elastic Block Storage! While until know, changing data on the EC2 system could only be stored in a
For those of you wanting to see the slides from Simon Crosby’s LinuxWorld Keynote, here they are. Entitled “Data Center of the Future: How the Delivery of Technology Will Change”, Crosby’s keynote focused more on Xen, its standing in the market and related news than on the future
The XCI project is meeting on August 19th at 9am EST for a presentation from Fujitsu on their USB virtualization. Information on their project is at http://wiki.xensource.com/xenwiki/Working_Group_Core_Hypervisor?action=AttachFile&do=get&target=USBDesign.pdf. Dial-in information: 1.888.371.8921
Xen Community: As with all things in the community, I would like to give everyone a chance to comment on a new document. The upcoming release of Xen 3.3 requires the release of a new 2 page datasheet. Here is a proposed document that I recently wrote – xen33datasheet.pdf.