Patent ID: 10684880

Abstract:
The purpose of the present invention is to provide a computer which is capable of increasing the number of I/O devices which connect to a PCI fabric which has predetermined specifications. This computer comprises: a storage unit which retains an I/O device list which is used to manage the allocation to a virtual machine which runs on the computer of an I/O device which is connected to the computer via a network; a virtual machine monitor which identifies the I/O device which is required for the operation of the virtual machine; and an I/O device manager which refers to the I/O device list and assesses whether the I/O device which has been identified by the virtual machine monitor is available to be allocated to the virtual machine, and if there is an I/O device available to be allocated to the virtual machine, allocates the I/O device to the virtual machine, and registers in the storage unit an identifier which is assigned to the I/O device on the basis of predetermined specifications, together with an identifier of the virtual machine.