RE: [Xen-users] no pci support in xen-3.0.1 with gentoo?

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> Bobber Cheng
> Sent: 10 February 2006 11:27
> To: Kneschke.Lars
> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Xen-users] no pci support in xen-3.0.1 with gentoo?
> 
> Kneschke.Lars wrote:
> > Bobber Cheng <bobber.cheng@xxxxxxxxx> schrieb: 
> >   
> >> Any suggestion?
> >>     
> >
> > The virtual machine has no PCI devices, until you assign some PCI 
> > slots to this machine.
> > And the assignment of PCI slots is also not working in 3.0.1
> So you mean I could not use pci devices such as ethernet 
> device with xen 3.0.1? if it's true, that's too bad cause a 
> Linux without network function is nothing.

You can certainly get network functionality in DomU - you just can't get
directly to the actual physical PCI device. 

Generally, the DomU is linked to the rest of the world through a
"bridge" device - which is just a piece of software that transfers the
data to Dom0, where Dom0 decides whether it's going to send it to the
Ethernet card or just transfer it to another domain - or perhaps answer
itself (in case you ping dom0 for instance). 

But if you really want to have direct access to the real hardware from a
DomU, then you need to use either Xen 2.0.x, or wait for the PCI
assignment feature in 3.0 to appear - I did see some patches a few days
ago, but I'm not sure if they are applied to unstable or not. There were
several comments and a bit of toing and froing on the patch, IIRC. 

--
Mats
> 
> Bests,
> Bobber
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
> 
> 


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users