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Tsirkin" Subject: [PULL 08/42] vfio/iommufd: Implement HostIOMMUDeviceClass::realize() handler Date: Mon, 24 Jun 2024 23:24:22 +0200 Message-ID: <20240624212456.350919-9-clg@redhat.com> In-Reply-To: <20240624212456.350919-1-clg@redhat.com> References: <20240624212456.350919-1-clg@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass client-ip=170.10.129.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: 10 X-Spam_score: 1.0 X-Spam_bar: + X-Spam_report: (1.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.207, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_SBL_CSS=3.335, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no 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 From: Zhenzhong Duan 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 Reviewed-by: Eric Auger Reviewed-by: Michael S. Tsirkin --- hw/vfio/iommufd.c | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index e4a507d55c4df972fb4c43d31571022910bae493..1674c61227b69f5de2a32dbb8013f854c199d294 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 = iommufd_cdev_pci_hot_reset; }; +static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, + Error **errp) +{ + VFIODevice *vdev = opaque; + HostIOMMUDeviceCaps *caps = &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 = g_strdup(vdev->name); + caps->type = type; + caps->aw_bits = vfio_device_get_aw_bits(vdev); + + return true; +} + +static void hiod_iommufd_vfio_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hiodc = HOST_IOMMU_DEVICE_CLASS(oc); + + hiodc->realize = hiod_iommufd_vfio_realize; +}; + static const TypeInfo types[] = { { .name = TYPE_VFIO_IOMMU_IOMMUFD, @@ -627,6 +656,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO, .parent = TYPE_HOST_IOMMU_DEVICE_IOMMUFD, + .class_init = hiod_iommufd_vfio_class_init, } };