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bh=iebPCkg5eFFs1qB8vOt/Pycrcm/HX0yYXVK1rX33ArI=; b=dJBhlp7V2xcFrq1TNxpdsUrL0o7DFxmM4tBQuqyPHuMb9fhIcZrOa5yrjCzzfLRQX4uRGz 97NT1PEn7AS/GWgbHJTdSby8z/wQ0oFjQR09kOnib1gj1sS7EyVSW3+nR+Rz9tIXKnGKT9 IR21o9Rl7CmDt2+/Dlh1NtAzQzqqdm4= X-MC-Unique: 6Wc4FjAOMcOhlBcl6x9lCQ-1 From: Cindy Lu To: lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, qemu-devel@nongnu.org Subject: [RFC 6/7] vhost-vdpa: init iommufd function in vhost_vdpa start Date: Wed, 3 May 2023 17:13:36 +0800 Message-Id: <20230503091337.2130631-7-lulu@redhat.com> In-Reply-To: <20230503091337.2130631-1-lulu@redhat.com> References: <20230503091337.2130631-1-lulu@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 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=170.10.129.124; envelope-from=lulu@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, 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_H2=-0.001, 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 @redhat.com) X-ZM-MESSAGEID: 1683105431210100011 Content-Type: text/plain; charset="utf-8" Add support for iommufd, init the vdpa_iommufd in vdpa_start in this step, driver will bind to the iommufd device and attach the default ASID(asid 0) to iommufd Signed-off-by: Cindy Lu --- hw/virtio/vhost-vdpa.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c index 85240926b2..6c01e3b44f 100644 --- a/hw/virtio/vhost-vdpa.c +++ b/hw/virtio/vhost-vdpa.c @@ -1158,6 +1158,24 @@ static int vhost_vdpa_dev_start(struct vhost_dev *de= v, bool started) trace_vhost_vdpa_dev_start(dev, started); =20 if (started) { + if ((v->enable_iommufd) && (vhost_vdpa_first_dev(dev))) { + struct vdpa_iommufd *vdpa_iommufd; + + vdpa_backend_iommufd_ops_class_init(v); + + if (dev->vdev->iommufd_ptr =3D=3D NULL) { + vdpa_iommufd =3D g_malloc(sizeof(VDPAIOMMUFDState)); + + vdpa_iommufd->iommufd =3D g_malloc(sizeof(IOMMUFDBackend)); + dev->vdev->iommufd_ptr =3D vdpa_iommufd; + + qemu_mutex_init(&vdpa_iommufd->iommufd->lock); + iommufd_backend_connect(vdpa_iommufd->iommufd, NULL); + + v->ops->attach_device(v, dev->vdev->dma_as, NULL); + } + } + vhost_vdpa_host_notifiers_init(dev); ok =3D vhost_vdpa_svqs_start(dev); if (unlikely(!ok)) { --=20 2.34.3