INFORMATION PROCESSING DEVICE, INTERRUPT PROCESSING CONTROL METHOD, AND COMPUTER PROGRAM

摘要

There is provided an improved interrupt processing control configuration in a system where a plurality of operation systems (OS) are simultaneously operating. In the system where a plurality of OS are simultaneously operating, a main OS to execute an interrupt processing control is set and no interrupt mask setting authority is given to a sub-OS other than the main OS. The sub-OS reports whether the sub-OS is in an interrupt-enabled state or an interrupt-inhibited state to the main OS. According to the reported information, the main OS performs an interrupt mask control of the sub-OS. With this configuration, it is possible to eliminate the problem of reservation of the interrupt processing by the mask control of the sub-OS itself and perform an interrupt control based on the intention of the main OS. A necessary interrupt processing can be performed with a higher priority. Moreover, since the main OS manages the sub-OS interrupt vector area, it is possible to realize memory area reduction.