KVM and Xen

[Mike Chalmers]

On 12/30/06, Tom Horsley <tomhorsley at adelphia.net> wrote:
> On Sat, 30 Dec 2006 17:04:52 -0800
> "Roopnarine, Peter" <proopnarine at calacademy.org> wrote:
>
> > I think that the question might actually be in reference to the new kernel
> > addition (Kernel Virtual Manager? I think). Apparently virtualization
> > capabilities will be built into the kernel. That's about all that I know, but
> > it sounds exciting.
>
> Yep. KVM gets rid of the "hypervisor" that Xen has, just making the
> hypervisor-like functions part of the Dom0 kernel (though no doubt
> KVM will have it's own jargon, so it won't call it Dom0). However,
> KVM (in current incarnation, anyway) doesn't support Xen's
> "paravirtualization" concept - KVM will only work on newer computers
> with hardware virtualization support (which is probably an OK restriction
> since by the time the kernels with KVM support have stabalized, all new
> computers will have the new instructions anyway).
>
> The big advantage I see to KVM is that nothing has to be "special"
> about the Dom0 kernel - all the regular old device drivers work fine,
> all the posts from people having problems with video drivers in the
> Xen kernel disappear, power management works like always, so your
> laptop with the Windows guest doesn't drain the battery
> in 10 minutes, etc.
>
> The biggest disadvantage will be easy for anyone with an older
> computer to spot :-).
>
> The second biggest disadvantage is the totally stupid acronym they
> have adopted for it, making it virtually impossible to find any information
> in a google search since all you get are hits on hardware switches.
>
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Thanks, Tom can I use KVM with one computer? Does it work with Yum?
Can I run Windows while I am using Linux?