574 					struct vbg_session *session,  in vbg_set_session_event_filter()  argument
589 						  session->requestor);  in vbg_set_session_event_filter()
599 	previous = session->event_filter;  in vbg_set_session_event_filter()
600 	session->event_filter |= or_mask;  in vbg_set_session_event_filter()
601 	session->event_filter &= ~not_mask;  in vbg_set_session_event_filter()
604 	changed = previous ^ session->event_filter;  in vbg_set_session_event_filter()
627 				    session->event_filter);  in vbg_set_session_event_filter()
628 		session->event_filter = previous;  in vbg_set_session_event_filter()
676 					struct vbg_session *session,  in vbg_set_session_capabilities()  argument
691 						  session->requestor);  in vbg_set_session_capabilities()
701 	previous = session->guest_caps;  in vbg_set_session_capabilities()
702 	session->guest_caps |= or_mask;  in vbg_set_session_capabilities()
703 	session->guest_caps &= ~not_mask;  in vbg_set_session_capabilities()
706 	changed = previous ^ session->guest_caps;  in vbg_set_session_capabilities()
729 				    session->guest_caps);  in vbg_set_session_capabilities()
730 		session->guest_caps = previous;  in vbg_set_session_capabilities()
930 	struct vbg_session *session;  in vbg_core_open_session()  local
932 	session = kzalloc(sizeof(*session), GFP_KERNEL);  in vbg_core_open_session()
933 	if (!session)  in vbg_core_open_session()
936 	session->gdev = gdev;  in vbg_core_open_session()
937 	session->requestor = requestor;  in vbg_core_open_session()
939 	return session;  in vbg_core_open_session()
946 void vbg_core_close_session(struct vbg_session *session)  in vbg_core_close_session()  argument
948 	struct vbg_dev *gdev = session->gdev;  in vbg_core_close_session()
951 	vbg_set_session_capabilities(gdev, session, 0, U32_MAX, true);  in vbg_core_close_session()
952 	vbg_set_session_event_filter(gdev, session, 0, U32_MAX, true);  in vbg_core_close_session()
954 	for (i = 0; i < ARRAY_SIZE(session->hgcm_client_ids); i++) {  in vbg_core_close_session()
955 		if (!session->hgcm_client_ids[i])  in vbg_core_close_session()
960 				    session->hgcm_client_ids[i], &rc);  in vbg_core_close_session()
963 	kfree(session);  in vbg_core_close_session()
1009 				struct vbg_session *session,  in vbg_wait_event_cond()  argument
1019 	wakeup = events || session->cancel_waiters;  in vbg_wait_event_cond()
1028 				     struct vbg_session *session,  in vbg_consume_events_locked()  argument
1038 				     struct vbg_session *session,  in vbg_ioctl_wait_for_events()  argument
1059 				vbg_wait_event_cond(gdev, session, event_mask),  in vbg_ioctl_wait_for_events()
1064 		if (timeout < 0 || session->cancel_waiters) {  in vbg_ioctl_wait_for_events()
1070 			   vbg_consume_events_locked(gdev, session, event_mask);  in vbg_ioctl_wait_for_events()
1085 					       struct vbg_session *session,  in vbg_ioctl_interrupt_all_wait_events()  argument
1094 	session->cancel_waiters = true;  in vbg_ioctl_interrupt_all_wait_events()
1109 static int vbg_req_allowed(struct vbg_dev *gdev, struct vbg_session *session,  in vbg_req_allowed()  argument
1189 	    (session->requestor & VMMDEV_REQUESTOR_USER_DEVICE)) {  in vbg_req_allowed()
1199 				struct vbg_session *session, void *data)  in vbg_ioctl_vmmrequest()  argument
1213 	ret = vbg_req_allowed(gdev, session, data);  in vbg_ioctl_vmmrequest()
1224 				  struct vbg_session *session,  in vbg_ioctl_hgcm_connect()  argument
1235 	for (i = 0; i < ARRAY_SIZE(session->hgcm_client_ids); i++) {  in vbg_ioctl_hgcm_connect()
1236 		if (!session->hgcm_client_ids[i]) {  in vbg_ioctl_hgcm_connect()
1237 			session->hgcm_client_ids[i] = U32_MAX;  in vbg_ioctl_hgcm_connect()
1243 	if (i >= ARRAY_SIZE(session->hgcm_client_ids))  in vbg_ioctl_hgcm_connect()
1246 	ret = vbg_hgcm_connect(gdev, session->requestor, &conn->u.in.loc,  in vbg_ioctl_hgcm_connect()
1252 		session->hgcm_client_ids[i] = client_id;  in vbg_ioctl_hgcm_connect()
1255 		session->hgcm_client_ids[i] = 0;  in vbg_ioctl_hgcm_connect()
1263 				     struct vbg_session *session,  in vbg_ioctl_hgcm_disconnect()  argument
1277 	for (i = 0; i < ARRAY_SIZE(session->hgcm_client_ids); i++) {  in vbg_ioctl_hgcm_disconnect()
1278 		if (session->hgcm_client_ids[i] == client_id) {  in vbg_ioctl_hgcm_disconnect()
1279 			session->hgcm_client_ids[i] = U32_MAX;  in vbg_ioctl_hgcm_disconnect()
1285 	if (i >= ARRAY_SIZE(session->hgcm_client_ids))  in vbg_ioctl_hgcm_disconnect()
1288 	ret = vbg_hgcm_disconnect(gdev, session->requestor, client_id,  in vbg_ioctl_hgcm_disconnect()
1293 		session->hgcm_client_ids[i] = 0;  in vbg_ioctl_hgcm_disconnect()
1295 		session->hgcm_client_ids[i] = client_id;  in vbg_ioctl_hgcm_disconnect()
1316 			       struct vbg_session *session, bool f32bit,  in vbg_ioctl_hgcm_call()  argument
1371 	for (i = 0; i < ARRAY_SIZE(session->hgcm_client_ids); i++)  in vbg_ioctl_hgcm_call()
1372 		if (session->hgcm_client_ids[i] == client_id)  in vbg_ioctl_hgcm_call()
1375 	if (i >= ARRAY_SIZE(session->hgcm_client_ids)) {  in vbg_ioctl_hgcm_call()
1382 		ret = vbg_hgcm_call32(gdev, session->requestor, client_id,  in vbg_ioctl_hgcm_call()
1387 		ret = vbg_hgcm_call(gdev, session->requestor, client_id,  in vbg_ioctl_hgcm_call()
1416 					struct vbg_session *session,  in vbg_ioctl_change_filter_mask()  argument
1430 	return vbg_set_session_event_filter(gdev, session, or_mask, not_mask,  in vbg_ioctl_change_filter_mask()
1435 	     struct vbg_session *session, struct vbg_ioctl_set_guest_caps *caps)  in vbg_ioctl_change_guest_capabilities()  argument
1449 	ret = vbg_set_session_capabilities(gdev, session, or_mask, not_mask,  in vbg_ioctl_change_guest_capabilities()
1454 	caps->u.out.session_caps = session->guest_caps;  in vbg_ioctl_change_guest_capabilities()
1477 				     struct vbg_session *session,  in vbg_ioctl_write_core_dump()  argument
1486 			    session->requestor);  in vbg_ioctl_write_core_dump()
1504 int vbg_core_ioctl(struct vbg_session *session, unsigned int req, void *data)  in vbg_core_ioctl()  argument
1507 	struct vbg_dev *gdev = session->gdev;  in vbg_core_ioctl()
1523 		return vbg_ioctl_vmmrequest(gdev, session, data);  in vbg_core_ioctl()
1533 		return vbg_ioctl_hgcm_connect(gdev, session, data);  in vbg_core_ioctl()
1535 		return vbg_ioctl_hgcm_disconnect(gdev, session, data);  in vbg_core_ioctl()
1537 		return vbg_ioctl_wait_for_events(gdev, session, data);  in vbg_core_ioctl()
1539 		return vbg_ioctl_interrupt_all_wait_events(gdev, session, data);  in vbg_core_ioctl()
1541 		return vbg_ioctl_change_filter_mask(gdev, session, data);  in vbg_core_ioctl()
1543 		return vbg_ioctl_change_guest_capabilities(gdev, session, data);  in vbg_core_ioctl()
1547 		return vbg_ioctl_write_core_dump(gdev, session, data);  in vbg_core_ioctl()
1558 		return vbg_ioctl_hgcm_call(gdev, session, f32bit, data);  in vbg_core_ioctl()