From patchwork Thu May 30 17:09:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jean-Philippe Brucker X-Patchwork-Id: 10969095 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 DDADA76 for ; Thu, 30 May 2019 17:12:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CCA0A2897C for ; Thu, 30 May 2019 17:12:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BFCEE289E2; Thu, 30 May 2019 17:12:37 +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 332962897C for ; Thu, 30 May 2019 17:12:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726280AbfE3RMg (ORCPT ); Thu, 30 May 2019 13:12:36 -0400 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70]:40078 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727049AbfE3RMg (ORCPT ); Thu, 30 May 2019 13:12:36 -0400 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 4F071341; Thu, 30 May 2019 10:12:35 -0700 (PDT) Received: from ostrya.cambridge.arm.com (ostrya.cambridge.arm.com [10.1.196.129]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 365663F5AF; Thu, 30 May 2019 10:12:32 -0700 (PDT) From: Jean-Philippe Brucker To: joro@8bytes.org, mst@redhat.com Cc: 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, jasowang@redhat.com, robh+dt@kernel.org, mark.rutland@arm.com, Lorenzo.Pieralisi@arm.com, robin.murphy@arm.com, bhelgaas@google.com, frowand.list@gmail.com, kvmarm@lists.cs.columbia.edu, eric.auger@redhat.com, tnowicki@caviumnetworks.com, kevin.tian@intel.com, bauerman@linux.ibm.com Subject: [PATCH v8 0/7] Add virtio-iommu driver Date: Thu, 30 May 2019 18:09:22 +0100 Message-Id: <20190530170929.19366-1-jean-philippe.brucker@arm.com> X-Mailer: git-send-email 2.21.0 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 v0.12 [1]. Since last version [2] we've worked on improving the specification, which resulted in the following changes to the interface: * Remove the EXEC flag. * Add feature bit for the MMIO flag. * Change domain_bits to domain_range. Given that there were small changes to patch 5/7, I removed the review and test tags. Please find the code at [3]. [1] Virtio-iommu specification v0.12, sources and pdf git://linux-arm.org/virtio-iommu.git virtio-iommu/v0.12 http://jpbrucker.net/virtio-iommu/spec/v0.12/virtio-iommu-v0.12.pdf http://jpbrucker.net/virtio-iommu/spec/diffs/virtio-iommu-dev-diff-v0.11-v0.12.pdf [2] [PATCH v7 0/7] Add virtio-iommu driver https://lore.kernel.org/linux-pci/0ba215f5-e856-bf31-8dd9-a85710714a7a@arm.com/T/ [3] git://linux-arm.org/linux-jpb.git virtio-iommu/v0.12 git://linux-arm.org/kvmtool-jpb.git virtio-iommu/v0.12 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 | 1176 +++++++++++++++++ drivers/of/base.c | 10 +- drivers/pci/of.c | 6 + include/uapi/linux/virtio_ids.h | 1 + include/uapi/linux/virtio_iommu.h | 165 +++ 10 files changed, 1470 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