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a="25575363" X-IronPort-AV: E=Sophos;i="6.08,216,1712646000"; d="scan'208";a="25575363" X-CSE-ConnectionGUID: rH7WaLGXSIWuexO2RncnIg== X-CSE-MsgGUID: l0YBg2ZVSWGrLxgbTIMpAA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,216,1712646000"; d="scan'208";a="37954809" 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, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v7 08/17] vfio/iommufd: Implement HostIOMMUDeviceClass::realize() handler Date: Wed, 5 Jun 2024 16:30:34 +0800 Message-Id: <20240605083043.317831-9-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240605083043.317831-1-zhenzhong.duan@intel.com> References: <20240605083043.317831-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 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=198.175.65.12; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1717576445331100007 Content-Type: text/plain; charset="utf-8" It calls iommufd_backend_get_device_info() to get host IOMMU related information and translate it into HostIOMMUDeviceCaps for query with .get_cap(). For aw_bits, use the same way as legacy backend by calling vfio_device_get_aw_bits() which is common for different vendor IOMMU. Signed-off-by: Zhenzhong Duan --- hw/vfio/iommufd.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index e4a507d55c..1674c61227 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -619,6 +619,35 @@ static void vfio_iommu_iommufd_class_init(ObjectClass = *klass, void *data) vioc->pci_hot_reset =3D iommufd_cdev_pci_hot_reset; }; =20 +static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, + Error **errp) +{ + VFIODevice *vdev =3D opaque; + HostIOMMUDeviceCaps *caps =3D &hiod->caps; + enum iommu_hw_info_type type; + union { + struct iommu_hw_info_vtd vtd; + } data; + + if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid, + &type, &data, sizeof(data), errp)= ) { + return false; + } + + hiod->name =3D g_strdup(vdev->name); + caps->type =3D type; + caps->aw_bits =3D vfio_device_get_aw_bits(vdev); + + return true; +} + +static void hiod_iommufd_vfio_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hiodc =3D HOST_IOMMU_DEVICE_CLASS(oc); + + hiodc->realize =3D hiod_iommufd_vfio_realize; +}; + static const TypeInfo types[] =3D { { .name =3D TYPE_VFIO_IOMMU_IOMMUFD, @@ -627,6 +656,7 @@ static const TypeInfo types[] =3D { }, { .name =3D TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO, .parent =3D TYPE_HOST_IOMMU_DEVICE_IOMMUFD, + .class_init =3D hiod_iommufd_vfio_class_init, } }; =20 --=20 2.34.1