From patchwork Wed Feb 28 03:58:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13574838 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BC761C54E41 for ; Wed, 28 Feb 2024 04:02:51 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rfB86-0005Lh-2k; Tue, 27 Feb 2024 23:01:14 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfB82-0005KU-SS for qemu-devel@nongnu.org; Tue, 27 Feb 2024 23:01:10 -0500 Received: from mgamail.intel.com ([192.198.163.19]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfB80-000087-I6 for qemu-devel@nongnu.org; Tue, 27 Feb 2024 23:01:10 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709092869; x=1740628869; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=uRVbRoO+nekTbH/285z3TqXWKDREcTaHdWuLGsapt0E=; b=AQP+MfTq9jk3zTErySjDF5Y0omHDkKUiOWh2q7axGZpddpbNkXVgEjpl aF+35KnqLOKHvH7JVtSa/dQQPkV8rar/ZZsLYsJqnns78qIbH8QXe1jfN b59yyKMUbsdVb9OS6Z2hhGDgQKiXLemr5dRpM0B1YpWoKpTVBYCO+n3nf fLu2azhNLvPEJLfVOQueU+B+j33U+XWfN85yy/19mMQFVU45v96bvj/gy Os5xif5TTXXqdMJCmPLIS58dy7JBHX9g6WQuFlN3m6Ekfyq4kQt1vYtll 8c8UOglDTJKiA10N/PhZcssvY+4wjykaR2xV6XWN4Lc7TM9H6c63qN82d w==; X-IronPort-AV: E=McAfee;i="6600,9927,10996"; a="3342416" X-IronPort-AV: E=Sophos;i="6.06,189,1705392000"; d="scan'208";a="3342416" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa113.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2024 20:01:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,189,1705392000"; d="scan'208";a="11917036" Received: from spr-s2600bt.bj.intel.com ([10.240.192.124]) by fmviesa004-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Feb 2024 20:01:01 -0800 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, mst@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v1 00/11] Add a host IOMMU device abstraction Date: Wed, 28 Feb 2024 11:58:49 +0800 Message-Id: <20240228035900.1085727-1-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.19; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.088, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hi, Based on Joao's suggestion, the iommufd nesting prerequisite series [1] is further splitted to host IOMMU device abstract part and vIOMMU check/sync part. This series implements the 1st part. This split also faciliates the dirty tracking series [2] and virtio-iommu series [3] to depend on 1st part. PATCH1-3: Introduce HostIOMMUDevice and two sub class PATCH4: Define HostIOMMUDevice handle in VFIODevice PATCH5-8: Introdcue host_iommu_device_create callback to allocate and intialize HostIOMMUDevice PATCH9-10: Introdcue set/unset_iommu_device to pass HostIOMMUDevice to vIOMMU PATCH11: a helper to get host IOMMU info Because it's becoming clear on community's suggestion, I'd like to remove rfc tag from this version. Qemu code can be found at: https://github.com/yiliu1765/qemu/tree/zhenzhong/iommufd_nesting_preq_part1_v1 [1] https://lore.kernel.org/qemu-devel/20240201072818.327930-1-zhenzhong.duan@intel.com/ [2] https://lore.kernel.org/qemu-devel/20240212135643.5858-1-joao.m.martins@oracle.com/ [3] https://lore.kernel.org/qemu-devel/20240117080414.316890-1-eric.auger@redhat.com/ Thanks Zhenzhong Changelog: v1: - use HostIOMMUDevice handle instead of union in VFIODevice (Eric) - change host_iommu_device_init to host_iommu_device_create - allocate HostIOMMUDevice in host_iommu_device_create callback and set the VFIODevice base_hdev handle (Eric) - refine pci_device_set/unset_iommu_device doc (Eric) - use HostIOMMUDevice handle instead of union in VTDHostIOMMUDevice (Eric) rfcv2: - introduce common abstract HostIOMMUDevice and sub struct for different BEs (Eric, Cédric) - remove iommufd_device.[ch] (Cédric) - remove duplicate iommufd/devid define from VFIODevice (Eric) - drop the p in aliased_pbus and aliased_pdevfn (Eric) - assert devfn and iommu_bus in pci_device_get_iommu_bus_devfn (Cédric, Eric) - use errp in iommufd_device_get_info (Eric) - split and simplify cap/ecap check/sync code in intel_iommu.c (Cédric) - move VTDHostIOMMUDevice declaration to intel_iommu_internal.h (Cédric) - make '(vtd->cap_reg >> 16) & 0x3fULL' a MACRO and add missed '+1' (Cédric) - block migration if vIOMMU cap/ecap updated based on host IOMMU cap/ecap - add R-B Yi Liu (1): hw/pci: Introduce pci_device_set/unset_iommu_device() Zhenzhong Duan (10): Introduce a common abstract struct HostIOMMUDevice backends/iommufd: Introduce IOMMUFDDevice vfio: Introduce IOMMULegacyDevice vfio: Add HostIOMMUDevice handle into VFIODevice vfio: Introduce host_iommu_device_create callback vfio/container: Implement host_iommu_device_create callback in legacy mode vfio/iommufd: Implement host_iommu_device_create callback in iommufd mode vfio/pci: Allocate and initialize HostIOMMUDevice after attachment vfio: Pass HostIOMMUDevice to vIOMMU backends/iommufd: Introduce helper function iommufd_device_get_info() include/hw/pci/pci.h | 38 +++++++++++++++- include/hw/vfio/vfio-common.h | 8 ++++ include/hw/vfio/vfio-container-base.h | 1 + include/sysemu/host_iommu_device.h | 22 ++++++++++ include/sysemu/iommufd.h | 19 ++++++++ backends/iommufd.c | 32 +++++++++++++- hw/pci/pci.c | 62 +++++++++++++++++++++++++-- hw/vfio/common.c | 8 ++++ hw/vfio/container.c | 9 ++++ hw/vfio/iommufd.c | 10 +++++ hw/vfio/pci.c | 24 ++++++++--- 11 files changed, 223 insertions(+), 10 deletions(-) create mode 100644 include/sysemu/host_iommu_device.h