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Re: [Libvir] PATCH: Support NIC model selection for QEMU/KVM



On Mon, Oct 22, 2007 at 04:33:40PM -0400, Daniel Veillard wrote:
> On Mon, Oct 22, 2007 at 03:44:38PM -0400, Jim Paris wrote:
> > Hi,
> > 
> > Sometime between kvm-36 and kvm-46 I ran into problems with the
> > default QEMU network card (ne2k-pci).  Switching it fixed the
> > problems, but libvirt doesn't support changing the NIC model.
> > These patches add support for:
> > 
> >   <interface>
> >     <nic model="rtl8139"/>
> >   </interface>
> > 
> > which becomes
> > 
> >   qemu -net nic,model=rtl8139,mac=...
> > 
> > By default, no model is appended to the qemu command line, as before.
> > Documentation update & some fixes are included too.
> 
>   Hum, 
> 
> I would really prefer if we were able to identify the issue and
> fix it transparently for the user (for example by detecting the
> kvm version if possible) rather than add an option in the permanent
> data file just to make stuff work. I hope this is possible, but
> can't really tell.

In Fedora/RHEL we simply switched  Xen, QEMU and KVM to all use rtl8139 by 
defualt since ne2k is crap.

Dan.
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