Fedora Core 4
Felipe Alfaro Solana
felipe_alfaro at linuxmail.org
Sat Jan 15 14:32:58 UTC 2005
On 15 Jan 2005, at 02:20, Kyrre Ness Sjobak wrote:
>> - Xen and Virtualization
>>
>> This starts by integrating the Xen kernel stuff, and going
>> from there.
>>
>
> Hmm.. Xen is quite similar to VMWare, or am i totaly wrong?
Xen is very different from VMware. VMware emulates a fake PC and is
able to run nearly any Operating System and suboperating systems (like
Windows). However, Xen does perform paravirtualization instead of
emulating a whole PC. Paravirtualization requires changes into the
guest operating system source code, in order to replace hardware
dependent code with calls to Xen itself (the Xen hypervisor). This
allows high performance virtualization. VMware-like emulation is a lot
trickier.
Since Xen requires the guest operating system source code to be
modified, Windows is not (and probably will never, in a foreseeable
future) supported. Up to date, only Linux and NetBSD are supported,
although people are working towards porting FreeBSD to Xen.
All in all, Xen is God Blessing.
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