26 struct vmbus_connection vmbus_connection = {  variable
31 				  vmbus_connection.ready_for_suspend_event),
33 				  vmbus_connection.ready_for_resume_event),
35 EXPORT_SYMBOL_GPL(vmbus_connection);
95 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID_4;  in vmbus_negotiate_version()
97 		msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);  in vmbus_negotiate_version()
98 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID;  in vmbus_negotiate_version()
101 	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);  in vmbus_negotiate_version()
102 	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);  in vmbus_negotiate_version()
115 		vmbus_connection.connect_cpu = cur_cpu;  in vmbus_negotiate_version()
119 		vmbus_connection.connect_cpu = 0;  in vmbus_negotiate_version()
126 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
128 		      &vmbus_connection.chn_msg_list);  in vmbus_negotiate_version()
130 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
139 		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
141 		spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock,  in vmbus_negotiate_version()
149 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
151 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
155 		vmbus_connection.conn_state = CONNECTED;  in vmbus_negotiate_version()
158 			vmbus_connection.msg_conn_id =  in vmbus_negotiate_version()
177 	vmbus_connection.conn_state = CONNECTING;  in vmbus_connect()
178 	vmbus_connection.work_queue = create_workqueue("hv_vmbus_con");  in vmbus_connect()
179 	if (!vmbus_connection.work_queue) {  in vmbus_connect()
184 	vmbus_connection.handle_primary_chan_wq =  in vmbus_connect()
186 	if (!vmbus_connection.handle_primary_chan_wq) {  in vmbus_connect()
191 	vmbus_connection.handle_sub_chan_wq =  in vmbus_connect()
193 	if (!vmbus_connection.handle_sub_chan_wq) {  in vmbus_connect()
198 	INIT_LIST_HEAD(&vmbus_connection.chn_msg_list);  in vmbus_connect()
199 	spin_lock_init(&vmbus_connection.channelmsg_lock);  in vmbus_connect()
201 	INIT_LIST_HEAD(&vmbus_connection.chn_list);  in vmbus_connect()
202 	mutex_init(&vmbus_connection.channel_mutex);  in vmbus_connect()
208 	vmbus_connection.int_page =  in vmbus_connect()
210 	if (vmbus_connection.int_page == NULL) {  in vmbus_connect()
215 	vmbus_connection.recv_int_page = vmbus_connection.int_page;  in vmbus_connect()
216 	vmbus_connection.send_int_page =  in vmbus_connect()
217 		(void *)((unsigned long)vmbus_connection.int_page +  in vmbus_connect()
224 	vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);  in vmbus_connect()
225 	vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);  in vmbus_connect()
226 	if ((vmbus_connection.monitor_pages[0] == NULL) ||  in vmbus_connect()
227 	    (vmbus_connection.monitor_pages[1] == NULL)) {  in vmbus_connect()
254 		if (vmbus_connection.conn_state == CONNECTED)  in vmbus_connect()
273 	vmbus_connection.conn_state = DISCONNECTED;  in vmbus_connect()
288 	if (vmbus_connection.handle_sub_chan_wq)  in vmbus_disconnect()
289 		destroy_workqueue(vmbus_connection.handle_sub_chan_wq);  in vmbus_disconnect()
291 	if (vmbus_connection.handle_primary_chan_wq)  in vmbus_disconnect()
292 		destroy_workqueue(vmbus_connection.handle_primary_chan_wq);  in vmbus_disconnect()
294 	if (vmbus_connection.work_queue)  in vmbus_disconnect()
295 		destroy_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
297 	if (vmbus_connection.int_page) {  in vmbus_disconnect()
298 		free_pages((unsigned long)vmbus_connection.int_page, 0);  in vmbus_disconnect()
299 		vmbus_connection.int_page = NULL;  in vmbus_disconnect()
302 	free_pages((unsigned long)vmbus_connection.monitor_pages[0], 0);  in vmbus_disconnect()
303 	free_pages((unsigned long)vmbus_connection.monitor_pages[1], 0);  in vmbus_disconnect()
304 	vmbus_connection.monitor_pages[0] = NULL;  in vmbus_disconnect()
305 	vmbus_connection.monitor_pages[1] = NULL;  in vmbus_disconnect()
319 	BUG_ON(!mutex_is_locked(&vmbus_connection.channel_mutex));  in relid2channel()
321 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {  in relid2channel()
402 	conn_id.u.id = vmbus_connection.msg_conn_id;  in vmbus_post_msg()