Re: FreeBSD HVM guests?

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, May 11, 2009 at 04:40:55PM -0400, Steven M. Bellovin wrote:
> On Mon, 11 May 2009 16:15:46 +0200
> Manuel Bouyer <bouyer%antioche.eu.org@localhost> wrote:
> 
> > On Mon, May 11, 2009 at 02:50:11PM +0100, Hugo Silva wrote:
> > > Hi,
> > >
> > > I am considering to install NetBSD 5/Xen (64 bits) on some servers
> > > that currently run FreeBSD 7/amd64. I've been testing NetBSD/Xen
> > > i386 on older hardware (no hardware virtualization support) with
> > > NetBSD PV domU's; It seems to work just fine.
> > >
> > > For my purposes, however, I need FreeBSD guests, and I am unable to
> > > test this at the moment.
> > >
> > > I would like to know if anyone has useful feedback regarding HVM
> > > guests, FreeBSD in particular, and NetBSD/Xen dom0 stability and
> > > maturity in general.
> > 
> > NetBSD/Xen dom0 is stability is good; I've several servers running it,
> > with NetBSD PV, linux PV, linux HVM and windows HVM guests. No
> > problems so far.
> > 
> > I would expect a FreeBSD HVM guest to run just fine; it will see a
> > PIIX3 IDE controller and a ne2000 ethernet device. Be aware that
> > I/O performances won't be great using these emulated device though;
> > but if your FreeBSD guest doesn't do mych I/O it should be fine.
> > 
> I thought FreeBSD had domU support at this point.  If I'm right,
> wouldn't that help I/O performance a lot?

it would, yes. if there is a FreeBSD PV kernel it would be the
best option

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
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