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https://patches.dpdk.org/api/covers/60052/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/cover/20190927181446.14336-1-amorenoz@redhat.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20190927181446.14336-1-amorenoz@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20190927181446.14336-1-amorenoz@redhat.com", "date": "2019-09-27T18:14:43", "name": "[v2,0/3] vhost: add support for IOVA_VA mode", "submitter": { "id": 1397, "url": "https://patches.dpdk.org/api/people/1397/?format=api", "name": "Adrian Moreno", "email": "amorenoz@redhat.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/cover/20190927181446.14336-1-amorenoz@redhat.com/mbox/", "series": [ { "id": 6592, "url": "https://patches.dpdk.org/api/series/6592/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=6592", "date": "2019-09-27T18:14:43", "name": "vhost: add support for IOVA_VA mode", "version": 2, "mbox": "https://patches.dpdk.org/series/6592/mbox/" } ], "comments": "https://patches.dpdk.org/api/covers/60052/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id B134D1B94A;\n\tFri, 27 Sep 2019 20:15:20 +0200 (CEST)", "from mx1.redhat.com (mx1.redhat.com [209.132.183.28])\n\tby dpdk.org (Postfix) with ESMTP id C5F152C39;\n\tFri, 27 Sep 2019 20:15:18 +0200 (CEST)", "from smtp.corp.redhat.com\n\t(int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16])\n\t(using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby mx1.redhat.com (Postfix) with ESMTPS id 13C7718CB8E9;\n\tFri, 27 Sep 2019 18:15:18 +0000 (UTC)", "from amorenoz.users.ipa.redhat.com (ovpn-116-96.ams2.redhat.com\n\t[10.36.116.96])\n\tby smtp.corp.redhat.com (Postfix) with ESMTP id D28D05C21A;\n\tFri, 27 Sep 2019 18:15:08 +0000 (UTC)" ], "From": "Adrian Moreno <amorenoz@redhat.com>", "To": "dev@dpdk.org", "Cc": "tiwei.bie@intel.com, zhihong.wang@intel.com, maxime.coquelin@redhat.com, \n\tAdrian Moreno <amorenoz@redhat.com>, stable@dpdk.org", "Date": "Fri, 27 Sep 2019 20:14:43 +0200", "Message-Id": "<20190927181446.14336-1-amorenoz@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Scanned-By": "MIMEDefang 2.79 on 10.5.11.16", "X-Greylist": "Sender IP whitelisted, not delayed by milter-greylist-4.6.2\n\t(mx1.redhat.com [10.5.110.63]); Fri, 27 Sep 2019 18:15:18 +0000 (UTC)", "Subject": "[dpdk-dev] [PATCH v2 0/3] vhost: add support for IOVA_VA mode", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Currently, IOVAs are assumed to be GPA when the dirty page logging\nis performed.\n\nAdd support for guest IOVA_VA mode by translatingi adresses\nto GPA before doing the dirty page logging.\n\nAlso, the page tables used for zero_copy mode also assume will not work\neither if IOVA VA is enabled. In fact, enabling dequeue_zero_copy and\nIOMMU is dangerous altogether because IOTLB invalidation of guest\npages can happen while the buffers are being used. So, ensure this\ncannot happen by preventing both features to be activated\nsimultaneously.\n\nFurther information: https://bugs.dpdk.org/show_bug.cgi?id=337\n\nFixes: 69c90e98f483 (\"vhost: enable IOMMU support\")\nCc: maxime.coquelin@redhat.com\nCc: stable@dpdk.org\n\n----\nv2 changes: Also translate buffer addresses\n----\n\n\nAdrian Moreno (3):\n vhost: translate incoming log address to gpa\n vhost: convert buffer addresses to GPA for logging\n vhost: prevent zero copy mode if iommu is on\n\n lib/librte_vhost/rte_vhost.h | 2 +-\n lib/librte_vhost/socket.c | 8 +++++++\n lib/librte_vhost/vdpa.c | 4 +++-\n lib/librte_vhost/vhost.c | 22 +++++++++++++++++\n lib/librte_vhost/vhost.h | 36 ++++++++++++++++++++++++++++\n lib/librte_vhost/vhost_user.c | 45 ++++++++++++++++++++++++++++++++++-\n lib/librte_vhost/virtio_net.c | 9 +++----\n 7 files changed, 119 insertions(+), 7 deletions(-)" }{ "id": 60052, "url": "