From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 50C4E90 for ; Mon, 26 Oct 2015 02:55:52 +0000 (UTC) Received: from mail-oi0-f42.google.com (mail-oi0-f42.google.com [209.85.218.42]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id E6E15E5 for ; Mon, 26 Oct 2015 02:55:51 +0000 (UTC) Received: by oiad129 with SMTP id d129so93144467oia.0 for ; Sun, 25 Oct 2015 19:55:51 -0700 (PDT) MIME-Version: 1.0 From: Andy Lutomirski Date: Sun, 25 Oct 2015 19:55:31 -0700 Message-ID: To: "Theodore Ts'o" Content-Type: text/plain; charset=UTF-8 Cc: "ksummit-discuss@lists.linuxfoundation.org" , Paolo Bonzini , m.smarduch@samsung.com Subject: [Ksummit-discuss] Short topic: virtio vs IOMMU List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , It would be nice to nail down how virtio should interact with IOMMUs on the emulated busses. A bunch of the relevant maintainers are around, and a short slot for this topic might make sense. The goal would be to figure out how to accomplish something like this series: https://git.kernel.org/cgit/linux/kernel/git/luto/linux.git/log/?h=virtio_ring_xen but in a way that would actually work on all supported platforms without breaking backward compatibility or killing performance. --Andy -- Andy Lutomirski AMA Capital Management, LLC