Patent Number: 8,819,675

Title: Virtual machine monitor and multiprocessor system

Abstract: In order to provide an interface of acquiring physical position information of an I/O device on a virtual machine monitor having an exclusive allocation function of the I/O device and optimize allocation of a resource to a virtual server by using the acquired physical position information, a virtual machine monitor includes an interface of allocating a resource in accordance with a given policy (a parameter of determining to which a priority is given in distributing resources) for an I/O device, a CPU NO., and a memory amount request to guest OS. Further, the virtual machine monitor includes an interface of pertinently converting physical position information of the resource allocated by the virtual machine monitor to notice to guest OS.

Inventors: Uehara; Keitaro (Kokubunji, JP), Tsushima; Yuji (Hachioji, JP)

Assignee: Hitachi, Ltd.

International Classification: G06F 9/455 (20060101); G06F 9/46 (20060101)

Expiration Date: 8/26/12018