On Fri, Oct 29, 2010 at 03:45:17PM +0200, Arnd Bergmann wrote: > On Friday 29 October 2010, Sridhar Samudrala wrote: > > With the current default 'vepa' mode, a KVM guest using virtio with > > macvtap backend has the following limitations. > > - cannot change/add a mac address on the guest virtio-net > > I believe this could be changed if there is a neeed, but I actually > consider it one of the design points of macvlan that the guest > is not able to change the mac address. With 802.1Qbg you rely on > the switch being able to identify the guest by its MAC address, > which the host kernel must ensure. > > > - cannot create a vlan device on the guest virtio-net > > Why not? If this doesn't work, it's probably a bug! > Why does the passthru mode enable it if it doesn't work > already? > > > - cannot enable promiscuous mode on guest virtio-net > > Could you elaborate why such a setup would be useful? > > Arnd E.g. to support bridging in the guest. -- MST -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
