38 struct vmbus_connection vmbus_connection = {  variable
83 	msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);  in vmbus_negotiate_version()
84 	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);  in vmbus_negotiate_version()
85 	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);  in vmbus_negotiate_version()
95 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
97 		      &vmbus_connection.chn_msg_list);  in vmbus_negotiate_version()
99 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
104 		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
106 		spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock,  in vmbus_negotiate_version()
114 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
116 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
120 		vmbus_connection.conn_state = CONNECTED;  in vmbus_negotiate_version()
138 	vmbus_connection.conn_state = CONNECTING;  in vmbus_connect()
139 	vmbus_connection.work_queue = create_workqueue("hv_vmbus_con");  in vmbus_connect()
140 	if (!vmbus_connection.work_queue) {  in vmbus_connect()
145 	INIT_LIST_HEAD(&vmbus_connection.chn_msg_list);  in vmbus_connect()
146 	spin_lock_init(&vmbus_connection.channelmsg_lock);  in vmbus_connect()
148 	INIT_LIST_HEAD(&vmbus_connection.chn_list);  in vmbus_connect()
149 	spin_lock_init(&vmbus_connection.channel_lock);  in vmbus_connect()
155 	vmbus_connection.int_page =  in vmbus_connect()
157 	if (vmbus_connection.int_page == NULL) {  in vmbus_connect()
162 	vmbus_connection.recv_int_page = vmbus_connection.int_page;  in vmbus_connect()
163 	vmbus_connection.send_int_page =  in vmbus_connect()
164 		(void *)((unsigned long)vmbus_connection.int_page +  in vmbus_connect()
171 	vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);  in vmbus_connect()
172 	vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);  in vmbus_connect()
173 	if ((vmbus_connection.monitor_pages[0] == NULL) ||  in vmbus_connect()
174 	    (vmbus_connection.monitor_pages[1] == NULL)) {  in vmbus_connect()
201 		if (vmbus_connection.conn_state == CONNECTED)  in vmbus_connect()
223 	vmbus_connection.conn_state = DISCONNECTED;  in vmbus_connect()
238 	if (vmbus_connection.work_queue) {  in vmbus_disconnect()
239 		drain_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
240 		destroy_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
243 	if (vmbus_connection.int_page) {  in vmbus_disconnect()
244 		free_pages((unsigned long)vmbus_connection.int_page, 0);  in vmbus_disconnect()
245 		vmbus_connection.int_page = NULL;  in vmbus_disconnect()
248 	free_pages((unsigned long)vmbus_connection.monitor_pages[0], 0);  in vmbus_disconnect()
249 	free_pages((unsigned long)vmbus_connection.monitor_pages[1], 0);  in vmbus_disconnect()
250 	vmbus_connection.monitor_pages[0] = NULL;  in vmbus_disconnect()
251 	vmbus_connection.monitor_pages[1] = NULL;  in vmbus_disconnect()
289 	spin_lock_irqsave(&vmbus_connection.channel_lock, flags);  in relid2channel()
290 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {  in relid2channel()
308 	spin_unlock_irqrestore(&vmbus_connection.channel_lock, flags);  in relid2channel()
384 		recv_int_page = vmbus_connection.recv_int_page;  in vmbus_on_event()
482 			(unsigned long *)vmbus_connection.send_int_page +  in vmbus_set_event()