From patchwork Sun May 29 08:11:33 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Wei W" X-Patchwork-Id: 9139629 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3D28D60759 for ; Sun, 29 May 2016 00:15:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2F8BD26E82 for ; Sun, 29 May 2016 00:15:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2463427CF9; Sun, 29 May 2016 00:15:48 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.0 required=2.0 tests=BAYES_00, DATE_IN_FUTURE_06_12, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C286826E82 for ; Sun, 29 May 2016 00:15:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751856AbcE2APi (ORCPT ); Sat, 28 May 2016 20:15:38 -0400 Received: from mga02.intel.com ([134.134.136.20]:59893 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751803AbcE2APf (ORCPT ); Sat, 28 May 2016 20:15:35 -0400 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP; 28 May 2016 17:15:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.26,381,1459839600"; d="scan'208";a="990754823" Received: from unknown (HELO otc18.sh.intel.com.com) ([10.239.48.138]) by fmsmga002.fm.intel.com with ESMTP; 28 May 2016 17:15:33 -0700 From: Wei Wang To: kvm@vger.kernel.org, qemu-devel@nongnu.org, virtio-comment@lists.oasis-open.org, mst@redhat.com, stefanha@redhat.com, pbonzini@redhat.com Cc: Wei Wang Subject: [PATCH 5/6 Resend] Vhost-pci RFC: Future Security Enhancement Date: Sun, 29 May 2016 16:11:33 +0800 Message-Id: <1464509494-159509-6-git-send-email-wei.w.wang@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1464509494-159509-1-git-send-email-wei.w.wang@intel.com> References: <1464509494-159509-1-git-send-email-wei.w.wang@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Wei Wang --- FutureWorks | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 FutureWorks diff --git a/FutureWorks b/FutureWorks new file mode 100644 index 0000000..210edcd --- /dev/null +++ b/FutureWorks @@ -0,0 +1,21 @@ +The vhost-pci design is currently suitable for a group of VMs who trust each +other. To extend it to a more general use case, two security features can be +added in the future. + +1 vIOMMU +vIOMMU provides the driver VM with the ability to restrict the device VM to +transiently access a specified portion of its memory. The vhost-pci design +proposed in this RFC can be extended to access the driver VM's memory with +vIOMMU. Precisely, the vIOMMU engine in the driver VM configures access +permissions (R/W) for the vhost-pci device to access its memory. More details +can be found at https://wiki.opnfv.org/display/kvm/Vm2vm+Mst and +https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg03993.html + +2 eptp switching +The idea of eptp swithing allows a vhost-pci device driver to access the mapped +driver VM's memory in an alternative view, where only a piece of trusted code +can access the driver VM's memory. More details can be found at +http://events.linuxfoundation.org/sites/events/files/slides/ +Jun_Nakajima_NFV_KVM%202015_final.pdf + +