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xen-users
Re: [Xen-users] Running native OS
On Thu, Jan 8, 2009 at 3:09 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
On Thu, Jan 08, 2009 at 01:29:33AM -0200, Thiago Camargo Martins Cordeiro wrote:
> Yes, it's possible but, PVM is much more fast than HVM!
> Moreover, Linux from kernel.org already have native support to run has a
> guest OS on Xen, so, if you want to run a native Linux, just compile the
> brand new 2.6.28 with Xen guest support enabled and boot it on your
> dom0... ;-)
>
Linux 2.6.28 only has pv_ops based Xen domU support.
pv_ops Xen dom0 support is currently under development and not yet ready.
See: http://wiki.xensource.com/xenwiki/XenParavirtOps
HVM guests (using hardware virtualization, Intel VT, AMD SVM) are slower than paravirtualized
(PV) guests, because they require _emulation_ for the unmodified OS to work.
-- Pasi
> Regards,
> Thiago
>
> 2009/1/7 Asim < linkasim@xxxxxxxxx>
>
> > Hi,
> >
> > I have used xen using PV. I recently got my hands on vt hardware and
> > would like to run a native Linux OS and kernel on it. Is it possible?
> > Is there any link which details the steps to run native OS. The
> > default installation tries to pull its own kernel and build it.
> >
> > Regards,
> > Asim
> >
_
The statement that Thiago said is still true though but if someone didn't know better they may read it differently. The new kernels do have Xen support but only for DomUs. I think they're shooting for 2.6.29 or 2.6.30 for Dom0 support? I run all my Xen installations on the CentOS kernel which is old but rock solid. For those who need newer kernels they need to go to Suse or Ubuntu I believe or their stuck for now.
Grant McWilliams
Some people, when confronted with a problem, think "I know, I'll use Windows."
Now they have two problems.
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