RTVirt is a new solution for enabling time-sensitive applications (such as emergency planning and management applications) on virtualized systems (such as public and private cloud systems) through cross-layer scheduling. It allows the two levels of schedulers on a virtualized system to communicate key scheduling information and coordinate on the scheduling decisions. It enables optimal multiprocessor schedulers to support virtualized time-sensitive applications with strong timeliness guarantees (in terms of meeting either deadlines or tail latency targets) and efficient resource utilization. The latest results from RTVirt are published as a full paper on EuroSys, a pretentious conference in the computer systems field.