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Re: Fedora Core 4



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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