Re: [Qemu-devel] [PATCH 0/4] net-bridge: rootless bridge support for qemu

[Anthony Liguori]

Avi Kivity wrote:
> On 11/05/2009 05:59 PM, Anthony Liguori wrote:
> > Avi Kivity wrote:
> > > On 11/05/2009 05:11 PM, Daniel P. Berrange wrote:
> > > > The main problem is that we've never really used the 'session' 
> > > > instances,
> > > > since networking configs are rather limited to pretty much just SLIRP
> > > > and people expect full bridging.  I think this patch series you've
> > > > done is invaluable and will let us finally make full use of the 
> > > > libvirt
> > > > 'session' instances for desktop virt, running everything unprivileged.
> > >
> > > What's to stop you from using the same idea to get a tap fd for the 
> > > unprivileged libvirtd instance?
> >
> > Why limit this to just libvirt based management tools?  The helper 
> > has to live somewhere, why not have it live in qemu?
>
> Because anything special the management tools wants done (as simple as 
> remembering the interface name so it can collect statistics and 
> associate them with the guest) will render the helper unusable.  The 
> helper is pure glue so it will be very hard to generalize.

It can get the interface names via info network.

But let's make this more concrete, what features cannot be implemented?

--
Regards,

Anthony Liguori