A system includes a hypervisor, virtual machine(s), and virtual processor(s). The virtual processor(s) includes a real time virtual processor and a housekeeping virtual processor. The housekeeping virtual processor is configured to initiate a non-preemptible task and responsive to initiating the non-preemptible task, increment a counter value from an initial counter value. The housekeeping virtual processor is also configured to complete the non-preemptible task and responsive to completing the non-preemptible task, decrement the counter value towards the initial counter value. Responsive to the counter value reaching the initial counter value, the virtual housekeeping processor is configured to check a flag set by the hypervisor. Responsive to checking the flag, the housekeeping process is configured to execute a hypercall to yield a processor associated with the housekeeping virtual processor.