paravirtualized 32-bit on 64-bit host?

[Nikolas Lam]

On Tue, 2008-03-18 at 15:36 -0400, Furnish, Trever G wrote:
> > -----Original Message-----
> > From: redhat-list-bounces at redhat.com 
> > [mailto:redhat-list-bounces at redhat.com] On Behalf Of Jose R R
> > Sent: Friday, March 14, 2008 12:43 PM
> > To: General Red Hat Linux discussion list
> > Subject: Re: paravirtualized 32-bit on 64-bit host?
> > 
> > On 3/7/08, Furnish, Trever G <TGFurnish at herffjones.com> wrote:
> > >
> > > Anyone managed to get a paravirtualized 32-bit guest working on a 
> > > 64-bit redhat host?  The RHEL5.1 release notes claim 
> > there's preview 
> > > support for it.  If by "technology preview" they mean, "We tried it 
> > > and it didn't work", then yeah, I guess there's support.  But I'm 
> > > having no luck. :-(
> > >
> > > 
> > >
> http://www.redhat.com/docs/manuals/enterprise/RHEL-5-manual/release-no
> > > te
> > > s/RELEASE-NOTES-U1-x86_64-en.html
> > >
> > > Anyone else fairing better?
> > >
> > > --
> > > Trever
> > >
> > 
> > Well last year I installed a 32-bit WinXP instance under 
> > 64-bit OpenSuSE host implementation of Xen.
> > Of course, proprietary technology is not actually 
> > paravirtualized, but rather fully virutalized with the help 
> > of the (AMD CPU in my specific case) hardware extensions.  
> > You can find an overview of what I did, if interested of course, at:
> > http://www.metztli-it.com/blog/index.php?blog=4&title=open-sou
> > rce-on-sun-microsystems-sun-ultr-20&more=1&c=1&tb=1&pb=1
> > 
> > 
> > Regards,
> > 
> > Jose R Rodriguez
> > http://www.metztli-it.com
> 
> Thanks, Jose.  I was hoping to avoid full virtualization due to the
> reported performance impacts, but perhaps that'll just have to wait.
> And you were the only one who even responded -- much appreciated!
> 
> 

See also this thread branch. It will still be tech-preview in release
5.2.

https://www.redhat.com/archives/rhelv5-list/2008-March/msg00176.html

n.