From patchwork Thu Nov 15 16:52:27 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 10684709 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 287FA13BB for ; Thu, 15 Nov 2018 16:58:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0DC292CBA0 for ; Thu, 15 Nov 2018 16:58:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F3C992CBA6; Thu, 15 Nov 2018 16:58:07 +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=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, 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 0AC372CBA0 for ; Thu, 15 Nov 2018 16:58:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387833AbeKPDGk (ORCPT ); Thu, 15 Nov 2018 22:06:40 -0500 Received: from foss.arm.com ([217.140.101.70]:37944 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726534AbeKPDGk (ORCPT ); Thu, 15 Nov 2018 22:06:40 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DCFA480D; Thu, 15 Nov 2018 08:58:03 -0800 (PST) Received: from ostrya.cambridge.arm.com (ostrya.cambridge.arm.com [10.1.196.78]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 7C6CE3F718; Thu, 15 Nov 2018 08:58:00 -0800 (PST) From: Jean-Philippe Brucker To: iommu@lists.linux-foundation.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, virtualization@lists.linux-foundation.org, virtio-dev@lists.oasis-open.org, joro@8bytes.org, mst@redhat.com Cc: frowand.list@gmail.com, jasowang@redhat.com, robh+dt@kernel.org, mark.rutland@arm.com, bhelgaas@google.com, kvmarm@lists.cs.columbia.edu, eric.auger@redhat.com, tnowicki@caviumnetworks.com, kevin.tian@intel.com, marc.zyngier@arm.com, robin.murphy@arm.com, will.deacon@arm.com, lorenzo.pieralisi@arm.com, bharat.bhushan@nxp.com Subject: [PATCH v4 0/7] Add virtio-iommu driver Date: Thu, 15 Nov 2018 16:52:27 +0000 Message-Id: <20181115165234.43990-1-jean-philippe.brucker@arm.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v3 [2]: * Rebase onto v4.20-rc2. Patch 3 now touches drivers/of/base.c instead of drivers/pci/of.c, since the map_rid() function has moved. * Removed the request timeout, that depended on DEBUG. * Other small fixes addressing comments on v3. You can find Linux driver and kvmtool device on my virtio-iommu/v0.8.1 branches [3]. You can also test it with the latest version of Eric's QEMU device [4]. [1] Virtio-iommu specification v0.8, sources and pdf git://linux-arm.org/virtio-iommu.git virtio-iommu/v0.8 http://jpbrucker.net/virtio-iommu/spec/v0.8/virtio-iommu-v0.8.pdf [2] [PATCH v3 0/7] Add virtio-iommu driver https://www.spinics.net/lists/linux-pci/msg77110.html [3] git://linux-arm.org/linux-jpb.git virtio-iommu/v0.8.1 git://linux-arm.org/kvmtool-jpb.git virtio-iommu/v0.8.1 [4] [RFC v8 00/18] VIRTIO-IOMMU device https://www.mail-archive.com/qemu-devel@nongnu.org/msg572637.html Jean-Philippe Brucker (7): dt-bindings: virtio-mmio: Add IOMMU description dt-bindings: virtio: Add virtio-pci-iommu node of: Allow the iommu-map property to omit untranslated devices PCI: OF: Initialize dev->fwnode appropriately iommu: Add virtio-iommu driver iommu/virtio: Add probe request iommu/virtio: Add event queue .../devicetree/bindings/virtio/iommu.txt | 66 + .../devicetree/bindings/virtio/mmio.txt | 30 + MAINTAINERS | 7 + drivers/iommu/Kconfig | 11 + drivers/iommu/Makefile | 1 + drivers/iommu/virtio-iommu.c | 1160 +++++++++++++++++ drivers/of/base.c | 10 +- drivers/pci/of.c | 7 + include/uapi/linux/virtio_ids.h | 1 + include/uapi/linux/virtio_iommu.h | 161 +++ 10 files changed, 1451 insertions(+), 3 deletions(-) create mode 100644 Documentation/devicetree/bindings/virtio/iommu.txt create mode 100644 drivers/iommu/virtio-iommu.c create mode 100644 include/uapi/linux/virtio_iommu.h Tested-by: Eric Auger