From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:44702) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1THAW5-0006Ti-06 for qemu-devel@nongnu.org; Thu, 27 Sep 2012 05:36:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1THAVz-0007JB-93 for qemu-devel@nongnu.org; Thu, 27 Sep 2012 05:36:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60731) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1THAVz-0007Iy-0q for qemu-devel@nongnu.org; Thu, 27 Sep 2012 05:36:15 -0400 Message-ID: <50641E08.4040602@redhat.com> Date: Thu, 27 Sep 2012 11:36:08 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <50597D1F.3070607@redhat.com> <505991A2.6090709@siemens.com> <5059954A.50408@redhat.com> <50600F7B.5080106@redhat.com> <50602B0A.1020403@redhat.com> <50641976.3020405@redhat.com> <50641C5F.2030202@redhat.com> <50641DB8.9090903@redhat.com> In-Reply-To: <50641DB8.9090903@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [big lock] Discussion about the convention of device's DMA each other after breaking down biglock List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Jan Kiszka , Marcelo Tosatti , liu ping fan , Anthony Liguori , "qemu-devel@nongnu.org" Il 27/09/2012 11:34, Avi Kivity ha scritto: >> > virtio-net is per-spec not going through the iommu. > What's that smell? A feature bit? Why is it a bad thing that it does not go through the iommu? Paolo