From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:47532) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XgE5j-0004Y0-5W for qemu-devel@nongnu.org; Mon, 20 Oct 2014 10:37:54 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XgE5b-0006oH-11 for qemu-devel@nongnu.org; Mon, 20 Oct 2014 10:37:47 -0400 Received: from thoth.sbs.de ([192.35.17.2]:40311) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XgE5a-0006nM-Nx for qemu-devel@nongnu.org; Mon, 20 Oct 2014 10:37:38 -0400 Message-ID: <54451E1B.9080801@siemens.com> Date: Mon, 20 Oct 2014 16:37:15 +0200 From: Jan Kiszka MIME-Version: 1.0 References: <1413797938-18100-1-git-send-email-mst@redhat.com> <877fzvq87z.fsf@blackfin.pond.sub.org> <20141020142356.GD11062@redhat.com> In-Reply-To: <20141020142356.GD11062@redhat.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] intel_iommu: fix VTD_SID_TO_BUS List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Michael S. Tsirkin" , Le Tan Cc: Markus Armbruster , Anthony Liguori , qemu-devel On 2014-10-20 16:23, Michael S. Tsirkin wrote: > > WRT intel_iommu, it does not yet seem to be as fully functional as I > hoped. What is missing or broken? > People also discussed the best way to handle virtio versus iommu > (it bypasses it ATM). We need to declare in the ACPI tables that the emulated IOMMUs do not cover those "special" virtio devices. > I'd like to suggest we hide the iommu from the command line > help for 2.2, this way people don't activate it mistakenly. > > Let's make it more complete and then enable for 2.3. > > Thoughts? We need the list of issues on the table, then we can decide. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SES-DE Corporate Competence Center Embedded Linux