METHOD, SYSTEM, AND PROGRAM FOR PROVIDING TWO SERVER VIRTUALIZATION LEVELS

PROBLEM TO BE SOLVED: To provide a method, a system, a program, and a computer data structure for providing two server virtualization levels. SOLUTION: A first hypervisor provides a first virtualization level while allowing a plurality of logic sections to share a set of resources. A second hypervisor provide a second virtualization level while allowing a plurality of independent virtual machine to share resources assigned to a single logic section. All the events about all the virtual machines in the signal logic section are grouped into a single event queue possessed by a section for receiving an event notification from the shared resources about the single logic section. An interruption request is transmitted via a signal to the grouped events from the event queue possessed by the section, and demultiplexing of the grouped events from the event queue possessed by the section into individual virtualized event queues assigned on a virtual machine base is carried out by means of the machine. COPYRIGHT: (C)2008,JPO&INPIT