Belkin XM Commander Manuel d'utilisateur télécharger pdf (Page 11)

Xen itself contains only the code required to detect and start secondary processors, set

up interrupt routing, and perform PCI bus enumeration. Device drivers run within a

privileged guest OS rather than within Xen itself. This approach provides compatibil-

ity with the majority of device hardware supported by Linux. The default XenLinux

build contains support for relatively modern server-class network and disk hardware,

but you can add support for other hardware by conﬁguring your XenLinux kernel in

the normal way.

1.3 History

Xen was originally developed by the Systems Research Group at the University of

Cambridge Computer Laboratory as part of the XenoServers project, funded by the

UK-EPSRC. XenoServers aim to provide a ‘public infrastructure for global distributed

computing’, and Xen plays a key part in that, allowing us to efﬁciently partition a sin-

gle machine to enable multiple independent clients to run their operating systems and

applications in an environment providing protection, resource isolation and account-

ing. The project web page contains further information along with pointers to papers

and technical reports: http://www.cl.cam.ac.uk/xeno

Xen has since grown into a fully-ﬂedged project in its own right, enabling us to investi-

gate interesting research issues regarding the best techniques for virtualising resources

such as the CPU, memory, disk and network. The project has been bolstered by sup-

port from Intel Research Cambridge, and HP Labs, who are now working closely with

us.

Xen was ﬁrst described in a paper presented at SOSP in 2003

, and the ﬁrst public

release (1.0) was made that October. Since then, Xen has signiﬁcantly matured and is

now used in production scenarios on many sites.

Xen 2.0 features greatly enhanced hardware support, conﬁguration ﬂexibility, usability

and a larger complement of supported operating systems. This latest release takes Xen

a step closer to becoming the deﬁnitive open source solution for virtualisation.

http://www.cl.cam.ac.uk/netos/papers/2003-xensosp.pdf

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Belkin XM Commander Manuel d'utilisateur Page 11