Interrupt signaling for directed interrupt virtualization

A computer system for facilitating processing in a computing environment, the computer system comprising:

• a memory;
• and
• a processor in communication with the memory, wherein the computer system is configured to perform a method, said method comprising:
• receiving an interrupt signal with an interrupt target ID, the interrupt target ID identifying one processor of a plurality of processors of the computing environment as a target processor to handle the interrupt signal;
• selecting a directed interrupt signal vector assigned to the interrupt target ID to which the interrupt signal is addressed;
• selecting, using the directed interrupt signal vector, a directed interrupt signal indicator;
• updating the directed interrupt signal indicator such that the directed interrupt signal indicator indicates that there is the interrupt signal addressed to the interrupt target ID to be handled;
• and
• forwarding the interrupt signal to the target processor.

A computer-implemented method of facilitating processing in a computing environment, the computer-implemented method comprising:

• receiving an interrupt signal with an interrupt target ID, the interrupt target ID identifying one processor of a plurality of processors of the computing environment as a target processor to handle the interrupt signal;
• selecting a directed interrupt signal vector assigned to the interrupt target ID to which the interrupt signal is addressed;
• selecting, using the directed interrupt signal vector, a directed interrupt signal indicator;
• updating the directed interrupt signal indicator such that the directed interrupt signal indicator indicates that there is the interrupt signal addressed to the interrupt target ID to be handled;
• and
• forwarding the interrupt signal to the target processor.