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a="10560674" X-IronPort-AV: E=Sophos;i="6.07,239,1708416000"; d="scan'208";a="10560674" X-CSE-ConnectionGUID: dr6nY1xtTI69lbrhnyAVLg== X-CSE-MsgGUID: dMUuyNrcT0ajtBTgPBRfSQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,239,1708416000"; d="scan'208";a="63487972" From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, mst@redhat.com, peterx@redhat.com, jasowang@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v3 03/19] backends/iommufd: Introduce abstract HostIOMMUDeviceIOMMUFD device Date: Mon, 29 Apr 2024 14:50:30 +0800 Message-Id: <20240429065046.3688701-4-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240429065046.3688701-1-zhenzhong.duan@intel.com> References: <20240429065046.3688701-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=192.198.163.16; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -44 X-Spam_score: -4.5 X-Spam_bar: ---- X-Spam_report: (-4.5 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.114, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1714373734808100001 HostIOMMUDeviceIOMMUFD represents a host IOMMU device under iommufd backend. Currently it contains public iommufd handle and device id which will be passed to vIOMMU to allocate/free ioas, hwpt, etc. When nested translation is supported in future, vIOMMU will request iommufd related operations like attaching/detaching hwpt. VFIO and VDPA device have different way of attaching/detaching hwpt. So HostIOMMUDeviceIOMMUFD is still an abstract class which will be inherited by VFIO and VDPA device sub-classes. Opportunistically, add missed header to include/sysemu/iommufd.h. Suggested-by: C=C3=A9dric Le Goater Signed-off-by: Yi Liu Signed-off-by: Zhenzhong Duan --- include/sysemu/iommufd.h | 30 ++++++++++++++++++++++++++++++ backends/iommufd.c | 37 ++++++++++++++++++++----------------- 2 files changed, 50 insertions(+), 17 deletions(-) diff --git a/include/sysemu/iommufd.h b/include/sysemu/iommufd.h index 9af27ebd6c..6a9fb0007a 100644 --- a/include/sysemu/iommufd.h +++ b/include/sysemu/iommufd.h @@ -1,9 +1,23 @@ +/* + * iommufd container backend declaration + * + * Copyright (C) 2024 Intel Corporation. + * Copyright Red Hat, Inc. 2024 + * + * Authors: Yi Liu + * Eric Auger + * Zhenzhong Duan + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + #ifndef SYSEMU_IOMMUFD_H #define SYSEMU_IOMMUFD_H =20 #include "qom/object.h" #include "exec/hwaddr.h" #include "exec/cpu-common.h" +#include "sysemu/host_iommu_device.h" =20 #define TYPE_IOMMUFD_BACKEND "iommufd" OBJECT_DECLARE_TYPE(IOMMUFDBackend, IOMMUFDBackendClass, IOMMUFD_BACKEND) @@ -33,4 +47,20 @@ int iommufd_backend_map_dma(IOMMUFDBackend *be, uint32_t= ioas_id, hwaddr iova, ram_addr_t size, void *vaddr, bool readonly); int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uint32_t ioas_id, hwaddr iova, ram_addr_t size); + +#define TYPE_HOST_IOMMU_DEVICE_IOMMUFD TYPE_HOST_IOMMU_DEVICE "-iommufd" +OBJECT_DECLARE_TYPE(HostIOMMUDeviceIOMMUFD, HostIOMMUDeviceIOMMUFDClass, + HOST_IOMMU_DEVICE_IOMMUFD) + +/* Abstract of host IOMMU device with iommufd backend */ +struct HostIOMMUDeviceIOMMUFD { + HostIOMMUDevice parent_obj; + + IOMMUFDBackend *iommufd; + uint32_t devid; +}; + +struct HostIOMMUDeviceIOMMUFDClass { + HostIOMMUDeviceClass parent_class; +}; #endif diff --git a/backends/iommufd.c b/backends/iommufd.c index 76a0204852..19e46194a2 100644 --- a/backends/iommufd.c +++ b/backends/iommufd.c @@ -211,23 +211,26 @@ int iommufd_backend_unmap_dma(IOMMUFDBackend *be, uin= t32_t ioas_id, return ret; } =20 -static const TypeInfo iommufd_backend_info =3D { - .name =3D TYPE_IOMMUFD_BACKEND, - .parent =3D TYPE_OBJECT, - .instance_size =3D sizeof(IOMMUFDBackend), - .instance_init =3D iommufd_backend_init, - .instance_finalize =3D iommufd_backend_finalize, - .class_size =3D sizeof(IOMMUFDBackendClass), - .class_init =3D iommufd_backend_class_init, - .interfaces =3D (InterfaceInfo[]) { - { TYPE_USER_CREATABLE }, - { } +static const TypeInfo types[] =3D { + { + .name =3D TYPE_IOMMUFD_BACKEND, + .parent =3D TYPE_OBJECT, + .instance_size =3D sizeof(IOMMUFDBackend), + .instance_init =3D iommufd_backend_init, + .instance_finalize =3D iommufd_backend_finalize, + .class_size =3D sizeof(IOMMUFDBackendClass), + .class_init =3D iommufd_backend_class_init, + .interfaces =3D (InterfaceInfo[]) { + { TYPE_USER_CREATABLE }, + { } + } + }, { + .name =3D TYPE_HOST_IOMMU_DEVICE_IOMMUFD, + .parent =3D TYPE_HOST_IOMMU_DEVICE, + .instance_size =3D sizeof(HostIOMMUDeviceIOMMUFD), + .class_size =3D sizeof(HostIOMMUDeviceIOMMUFDClass), + .abstract =3D true, } }; =20 -static void register_types(void) -{ - type_register_static(&iommufd_backend_info); -} - -type_init(register_types); +DEFINE_TYPES(types) --=20 2.34.1