Information Processing Apparatus and Method of Controlling Information Processing Apparatus

An information processing apparatus in which virtual machines including a client virtual machine run under a hypervisor, comprising:

• a device manager configured to create a device model including information that is used when assigning an I/O device to the client virtual machine in accordance with a device profile and an arrangement of I/O devices provided in the information processing apparatus;
• and
• a semiconductor circuit having an address conversion circuit configured to perform address conversion for the client virtual machine to make an MMIO access to the assigned I/O device and to perform address conversion to conduct a DMA transfer between the assigned I/O device and the client virtual machine,
• wherein the hypervisor assigns the I/O device to the client virtual machine based on the device model, and
• the client virtual machine utilizes, when making the MMIO access to the assigned I/O device or conducting the DMA transfer with the assigned I/O device, the address conversion circuit to make the access or conducts the DMA transfer.