30  * DoorbellEntry describes the a doorbell notification handle allocated by the
80  * with a given doorbell handle. For guest endpoints, the
83  * handle. Hypervisor endpoints are not yet supported.
85 int vmci_dbell_get_priv_flags(struct vmci_handle handle, u32 *priv_flags)  in vmci_dbell_get_priv_flags()  argument
87 	if (priv_flags == NULL || handle.context == VMCI_INVALID_ID)  in vmci_dbell_get_priv_flags()
90 	if (handle.context == VMCI_HOST_CONTEXT_ID) {  in vmci_dbell_get_priv_flags()
94 		resource = vmci_resource_by_handle(handle,  in vmci_dbell_get_priv_flags()
102 	} else if (handle.context == VMCI_HYPERVISOR_CONTEXT_ID) {  in vmci_dbell_get_priv_flags()
109 		*priv_flags = vmci_context_get_priv_flags(handle.context);  in vmci_dbell_get_priv_flags()
225  * Creates a link between the given doorbell handle and the given
229 static int dbell_link(struct vmci_handle handle, u32 notify_idx)  in dbell_link()  argument
237 	link_msg.handle = handle;  in dbell_link()
244  * Unlinks the given doorbell handle from an index in the bitmap in
247 static int dbell_unlink(struct vmci_handle handle)  in dbell_unlink()  argument
255 	unlink_msg.handle = handle;  in dbell_unlink()
275 int vmci_dbell_host_context_notify(u32 src_cid, struct vmci_handle handle)  in vmci_dbell_host_context_notify()  argument
280 	if (vmci_handle_is_invalid(handle)) {  in vmci_dbell_host_context_notify()
281 		pr_devel("Notifying an invalid doorbell (handle=0x%x:0x%x)\n",  in vmci_dbell_host_context_notify()
282 			 handle.context, handle.resource);  in vmci_dbell_host_context_notify()
286 	resource = vmci_resource_by_handle(handle,  in vmci_dbell_host_context_notify()
289 		pr_devel("Notifying an unknown doorbell (handle=0x%x:0x%x)\n",  in vmci_dbell_host_context_notify()
290 			 handle.context, handle.resource);  in vmci_dbell_host_context_notify()
377  * @handle:     A handle used to track the resource.  Can be invalid.
383  * Creates a doorbell with the given callback. If the handle is
384  * VMCI_INVALID_HANDLE, a free handle will be assigned, if
392 int vmci_doorbell_create(struct vmci_handle *handle,  in vmci_doorbell_create()  argument
401 	if (!handle || !notify_cb || flags & ~VMCI_FLAG_DELAYED_CB ||  in vmci_doorbell_create()
411 	if (vmci_handle_is_invalid(*handle)) {  in vmci_doorbell_create()
426 		 * Validate the handle.  We must do both of the checks below  in vmci_doorbell_create()
432 		if (handle->context == VMCI_HOST_CONTEXT_ID ||  in vmci_doorbell_create()
434 		     vmci_get_context_id() == handle->context)) {  in vmci_doorbell_create()
438 		if (!valid_context || handle->resource == VMCI_INVALID_ID) {  in vmci_doorbell_create()
439 			pr_devel("Invalid argument (handle=0x%x:0x%x)\n",  in vmci_doorbell_create()
440 				 handle->context, handle->resource);  in vmci_doorbell_create()
445 		new_handle = *handle;  in vmci_doorbell_create()
461 		pr_warn("Failed to add new resource (handle=0x%x:0x%x), error: %d\n",  in vmci_doorbell_create()
476 	*handle = new_handle;  in vmci_doorbell_create()
491  * @handle:     The handle tracking the resource.
496 int vmci_doorbell_destroy(struct vmci_handle handle)  in vmci_doorbell_destroy()  argument
501 	if (vmci_handle_is_invalid(handle))  in vmci_doorbell_destroy()
504 	resource = vmci_resource_by_handle(handle,  in vmci_doorbell_destroy()
507 		pr_devel("Failed to destroy doorbell (handle=0x%x:0x%x)\n",  in vmci_doorbell_destroy()
508 			 handle.context, handle.resource);  in vmci_doorbell_destroy()
519 		result = dbell_unlink(handle);  in vmci_doorbell_destroy()
531 			 * hypervisor side yet. Since the handle has  in vmci_doorbell_destroy()
535 			pr_devel("Unlink of doorbell (handle=0x%x:0x%x) unknown by hypervisor (error=%d)\n",  in vmci_doorbell_destroy()
536 				 handle.context, handle.resource, result);  in vmci_doorbell_destroy()