Subject: Re: Re: custom kernel (from NetBSD one)
To: Joel CARNAT <joel@carnat.net>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: port-xen
Date: 05/10/2005 11:35:38
On Mon, May 09, 2005 at 09:17:54PM +0200, Joel CARNAT wrote:
> On Mon, May 09 2005 - 16:27, Manuel Bouyer wrote:
> > On Sat, May 07, 2005 at 06:07:16PM +0200, Joel CARNAT wrote:
> > > Hi,
> > >
> > > just booting XEN0 (from netbsd-3 src) I see there is no ACPI nor
> > > CardBus support. As I have a laptop with bad APM issues and atheros
> > > wifi cardbus for connection, I feel a bit disapointed ;)
> > >
> > > 1. is there ACPI and/or cardbus support on Xen (domain0) ?
> >
> > No. ACPI can't be done as it's not exported by the Xen kernel to the domains.
> > ACPI is managed by the Xen kernel itself.
>
> OK, as soon as the apm thing from NetBSD is not here too.
> It seems to hang my laptop :(
>
> > I'm not sure cardbus can work either, because the domain0 kernel doesn't
> > have access to the interrupt routing informations (but the Xen kernel may
> > take care of that).
>
> I just tried boot xenlive iso and the linux domain0 don't see it.
> One trouble is that it is atheros and Linux does not know them straight :(
>
> Extending this hardware question, I planned to use Xen to use Linux|FreeBSD
> IEEE DV cam support. I'm wondering if this will work... As it seems Xen is not
> 100% like the domainX system (in terms of hardware support).
For PCI devices, it's equivalent, as long as there isn't interrupt routing
issues.
>
> Does it make sense to run Linux|FreeBSD in domainX if NetBSD/Xen (in domain0) don't
> support whatever hardware (DV cam recorder, USB umass for digital camerai or even ATI
> Linux drivers) ?
Yes, as you can hide some devices from domain0 and make them available to
other domains. I'm not sure how this would work for the display adapter
and keyboard/mouse, though.
--
Manuel Bouyer <bouyer@antioche.eu.org>
NetBSD: 26 ans d'experience feront toujours la difference
--