From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Daniel P. Berrange" Subject: Re: [PATCH] kvm tools: Allow the user to pass a FD to use as a TAP device Date: Wed, 7 Dec 2011 16:38:47 +0000 Message-ID: <20111207163847.GB10305@redhat.com> References: <1323250673-6869-1-git-send-email-levinsasha928@gmail.com> Reply-To: "Daniel P. Berrange" Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Sasha Levin , mingo@elte.hu, gorcunov@gmail.com, asias.hejun@gmail.com, kvm@vger.kernel.org, Osier Yang To: Pekka Enberg Return-path: Received: from mx1.redhat.com ([209.132.183.28]:9171 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758033Ab1LGQjJ (ORCPT ); Wed, 7 Dec 2011 11:39:09 -0500 Content-Disposition: inline In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On Wed, Dec 07, 2011 at 06:28:12PM +0200, Pekka Enberg wrote: > On Wed, Dec 7, 2011 at 11:37 AM, Sasha Levin wrote: > > This allows users to pass a pre-configured fd to use for the networ= k > > interface. > > > > For example: > > =C2=A0 =C2=A0 =C2=A0 =C2=A0kvm run -n mode=3Dtap,fd=3D3 3<>/dev/net= /tap3 > > > > Cc: Daniel P. Berrange > > Cc: Osier Yang > > Signed-off-by: Sasha Levin >=20 > Daniel, Osier, I assume this is useful for libvirt? Yes, this works. I don't know if kvmtool supports the VNET_HDR extension yet, but if it does, then we can make libvirt pass in a pre-opened FD for that too. Daniel --=20 |: http://berrange.com -o- http://www.flickr.com/photos/dberran= ge/ :| |: http://libvirt.org -o- http://virt-manager.= org :| |: http://autobuild.org -o- http://search.cpan.org/~danbe= rr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-= vnc :|