27 	struct vfio_device_file *df;  in vfio_device_fops_cdev_open()  local
34 	df = vfio_allocate_device_file(device);  in vfio_device_fops_cdev_open()
35 	if (IS_ERR(df)) {  in vfio_device_fops_cdev_open()
36 		ret = PTR_ERR(df);  in vfio_device_fops_cdev_open()
40 	filep->private_data = df;  in vfio_device_fops_cdev_open()
49 static void vfio_df_get_kvm_safe(struct vfio_device_file *df)  in vfio_df_get_kvm_safe()  argument
51 	spin_lock(&df->kvm_ref_lock);  in vfio_df_get_kvm_safe()
52 	vfio_device_get_kvm_safe(df->device, df->kvm);  in vfio_df_get_kvm_safe()
53 	spin_unlock(&df->kvm_ref_lock);  in vfio_df_get_kvm_safe()
56 long vfio_df_ioctl_bind_iommufd(struct vfio_device_file *df,  in vfio_df_ioctl_bind_iommufd()  argument
59 	struct vfio_device *device = df->device;  in vfio_df_ioctl_bind_iommufd()
64 	static_assert(__same_type(arg->out_devid, df->devid));  in vfio_df_ioctl_bind_iommufd()
75 	if (df->group)  in vfio_df_ioctl_bind_iommufd()
84 	if (df->access_granted) {  in vfio_df_ioctl_bind_iommufd()
89 	df->iommufd = iommufd_ctx_from_fd(bind.iommufd);  in vfio_df_ioctl_bind_iommufd()
90 	if (IS_ERR(df->iommufd)) {  in vfio_df_ioctl_bind_iommufd()
91 		ret = PTR_ERR(df->iommufd);  in vfio_df_ioctl_bind_iommufd()
92 		df->iommufd = NULL;  in vfio_df_ioctl_bind_iommufd()
102 	vfio_df_get_kvm_safe(df);  in vfio_df_ioctl_bind_iommufd()
104 	ret = vfio_df_open(df);  in vfio_df_ioctl_bind_iommufd()
108 	ret = copy_to_user(&arg->out_devid, &df->devid,  in vfio_df_ioctl_bind_iommufd()
109 			   sizeof(df->devid)) ? -EFAULT : 0;  in vfio_df_ioctl_bind_iommufd()
118 	smp_store_release(&df->access_granted, true);  in vfio_df_ioctl_bind_iommufd()
123 	vfio_df_close(df);  in vfio_df_ioctl_bind_iommufd()
126 	iommufd_ctx_put(df->iommufd);  in vfio_df_ioctl_bind_iommufd()
127 	df->iommufd = NULL;  in vfio_df_ioctl_bind_iommufd()
134 void vfio_df_unbind_iommufd(struct vfio_device_file *df)  in vfio_df_unbind_iommufd()  argument
136 	struct vfio_device *device = df->device;  in vfio_df_unbind_iommufd()
143 	if (!df->access_granted)  in vfio_df_unbind_iommufd()
147 	vfio_df_close(df);  in vfio_df_unbind_iommufd()
149 	iommufd_ctx_put(df->iommufd);  in vfio_df_unbind_iommufd()
155 int vfio_df_ioctl_attach_pt(struct vfio_device_file *df,  in vfio_df_ioctl_attach_pt()  argument
158 	struct vfio_device *device = df->device;  in vfio_df_ioctl_attach_pt()
191 int vfio_df_ioctl_detach_pt(struct vfio_device_file *df,  in vfio_df_ioctl_detach_pt()  argument
194 	struct vfio_device *device = df->device;  in vfio_df_ioctl_detach_pt()