Real CPU (RCPU) Subsystem of VM

The RCPU subsystem of VM includes responsibility for the following parts of the system:

  • Allocation of system resources to virtual machines and CP (Scheduler and dispatcher) (This is my main focus area.)
  • System configuration management
  • Task management
  • Processor/vector facility initialization, termination, recovery
  • Program/External/Machine check handlers
  • Machine check and check stop processing and recovery
  • Processor controller communications
  • Semaphore Facility (Guest Lock Support)
  • Diagnose Support (Diags. 00, 0C, and 44)


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