| 摘要 |
When an access occurs to an I/O device 110a from an OS 231a, an I/O allocation unit 223 refers to an I/O allocation table 229, and determines whether the I/O device 110a is allocated to other OS 231b. When the I/O device 110a is allocated to another OS 231b, a control unit 228 notifies the OS 231a of an error. When the I/O device 110a is not allocated to either of the OSs 231a-b, the I/O allocation unit 223 updates the I/O allocation table 229 in order to allocate the I/O device 110a to the OS 231a, and an I/O emulation unit 222 emulates the access to the I/O device 110a. |
