29 struct vmbus_connection vmbus_connection = {  variable
32 				  vmbus_connection.unload_event),
36 				  vmbus_connection.ready_for_suspend_event),
38 				  vmbus_connection.ready_for_resume_event),
40 EXPORT_SYMBOL_GPL(vmbus_connection);
102 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID_4;  in vmbus_negotiate_version()
104 		msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);  in vmbus_negotiate_version()
105 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID;  in vmbus_negotiate_version()
112 	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]) |  in vmbus_negotiate_version()
114 	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]) |  in vmbus_negotiate_version()
123 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
125 		      &vmbus_connection.chn_msg_list);  in vmbus_negotiate_version()
127 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
136 		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
138 		spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock,  in vmbus_negotiate_version()
146 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
148 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
152 		vmbus_connection.conn_state = CONNECTED;  in vmbus_negotiate_version()
155 			vmbus_connection.msg_conn_id =  in vmbus_negotiate_version()
174 	vmbus_connection.conn_state = CONNECTING;  in vmbus_connect()
175 	vmbus_connection.work_queue = create_workqueue("hv_vmbus_con");  in vmbus_connect()
176 	if (!vmbus_connection.work_queue) {  in vmbus_connect()
181 	vmbus_connection.rescind_work_queue =  in vmbus_connect()
183 	if (!vmbus_connection.rescind_work_queue) {  in vmbus_connect()
187 	vmbus_connection.ignore_any_offer_msg = false;  in vmbus_connect()
189 	vmbus_connection.handle_primary_chan_wq =  in vmbus_connect()
191 	if (!vmbus_connection.handle_primary_chan_wq) {  in vmbus_connect()
196 	vmbus_connection.handle_sub_chan_wq =  in vmbus_connect()
198 	if (!vmbus_connection.handle_sub_chan_wq) {  in vmbus_connect()
203 	INIT_LIST_HEAD(&vmbus_connection.chn_msg_list);  in vmbus_connect()
204 	spin_lock_init(&vmbus_connection.channelmsg_lock);  in vmbus_connect()
206 	INIT_LIST_HEAD(&vmbus_connection.chn_list);  in vmbus_connect()
207 	mutex_init(&vmbus_connection.channel_mutex);  in vmbus_connect()
213 	vmbus_connection.int_page = hv_alloc_hyperv_zeroed_page();  in vmbus_connect()
214 	if (vmbus_connection.int_page == NULL) {  in vmbus_connect()
219 	vmbus_connection.recv_int_page = vmbus_connection.int_page;  in vmbus_connect()
220 	vmbus_connection.send_int_page =  in vmbus_connect()
221 		(void *)((unsigned long)vmbus_connection.int_page +  in vmbus_connect()
228 	vmbus_connection.monitor_pages[0] = hv_alloc_hyperv_page();  in vmbus_connect()
229 	vmbus_connection.monitor_pages[1] = hv_alloc_hyperv_page();  in vmbus_connect()
230 	if ((vmbus_connection.monitor_pages[0] == NULL) ||  in vmbus_connect()
231 	    (vmbus_connection.monitor_pages[1] == NULL)) {  in vmbus_connect()
237 				vmbus_connection.monitor_pages[0], 1);  in vmbus_connect()
239 				vmbus_connection.monitor_pages[1], 1);  in vmbus_connect()
247 	memset(vmbus_connection.monitor_pages[0], 0x00, HV_HYP_PAGE_SIZE);  in vmbus_connect()
248 	memset(vmbus_connection.monitor_pages[1], 0x00, HV_HYP_PAGE_SIZE);  in vmbus_connect()
279 		if (vmbus_connection.conn_state == CONNECTED)  in vmbus_connect()
294 	vmbus_connection.channels = kcalloc(MAX_CHANNEL_RELIDS,  in vmbus_connect()
297 	if (vmbus_connection.channels == NULL) {  in vmbus_connect()
308 	vmbus_connection.conn_state = DISCONNECTED;  in vmbus_connect()
323 	if (vmbus_connection.handle_sub_chan_wq)  in vmbus_disconnect()
324 		destroy_workqueue(vmbus_connection.handle_sub_chan_wq);  in vmbus_disconnect()
326 	if (vmbus_connection.handle_primary_chan_wq)  in vmbus_disconnect()
327 		destroy_workqueue(vmbus_connection.handle_primary_chan_wq);  in vmbus_disconnect()
329 	if (vmbus_connection.rescind_work_queue)  in vmbus_disconnect()
330 		destroy_workqueue(vmbus_connection.rescind_work_queue);  in vmbus_disconnect()
332 	if (vmbus_connection.work_queue)  in vmbus_disconnect()
333 		destroy_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
335 	if (vmbus_connection.int_page) {  in vmbus_disconnect()
336 		hv_free_hyperv_page(vmbus_connection.int_page);  in vmbus_disconnect()
337 		vmbus_connection.int_page = NULL;  in vmbus_disconnect()
340 	set_memory_encrypted((unsigned long)vmbus_connection.monitor_pages[0], 1);  in vmbus_disconnect()
341 	set_memory_encrypted((unsigned long)vmbus_connection.monitor_pages[1], 1);  in vmbus_disconnect()
343 	hv_free_hyperv_page(vmbus_connection.monitor_pages[0]);  in vmbus_disconnect()
344 	hv_free_hyperv_page(vmbus_connection.monitor_pages[1]);  in vmbus_disconnect()
345 	vmbus_connection.monitor_pages[0] = NULL;  in vmbus_disconnect()
346 	vmbus_connection.monitor_pages[1] = NULL;  in vmbus_disconnect()
355 	if (vmbus_connection.channels == NULL) {  in relid2channel()
361 	return READ_ONCE(vmbus_connection.channels[relid]);  in relid2channel()
419 	conn_id.u.id = vmbus_connection.msg_conn_id;  in vmbus_post_msg()