Re: [Xen-devel] Re: [Qemu-devel] [PATCH 1/7] xen: groundwork for xen support

[Anthony Liguori <anthony@xxxxxxxxxxxxx>]

Daniel P. Berrange wrote:
> On Mon, Jul 28, 2008 at 04:52:28PM +0200, Gerd Hoffmann wrote:
>   
> > > > +/* xen_machine.c */
> > > > +extern QEMUMachine xenpv_machine;
> > > > +extern QEMUMachine xenfv_machine;
> > > >         
> > > Why does xenfv need its own machine type?
> > >       
> > This is how xen's qemu-dm handles it at the moment and I've decided to
> > do it the same way for simplicity.  I think qemu could also figure it
> > using a hypercall.
> >     
> This is something I originally added to QEMU in Xen's tree. The basic
> idea is that the 'xenpv' macjine is a machine which /only/ provides the
> paravirtualized Xen backends drivers. The 'xenfv' machine type is just
> the same as the 'pc' machine type, but with the /addition/ of the Xen
> paravirtualized backends. Perhaps the latter could be thought of as
> more of a 'xenpc' (cf 'pc' and 'isapc') becasue its a variation on the
> regular PC machine type. Annoying that all the acronyms I come up with
> only differ by one letter :-)
>   
Why wouldn't the Xen backends be added by appropriate -net or -drive 
options?  For instance, qemu -drive file=foo.img,if=xen -net nic,model=xen
Regards,

Anthony Liguori

> Daniel
>   

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