ADDRESS TRANSLATION INSPECTION DEVICE, CENTRAL PROCESSING DEVICE, AND ADDRESS TRANSLATION INSPECTION METHOD

摘要

An information processing device (10) is provided with an MMU (20) for translating between virtual addresses and physical addresses on the basis of a translation table for translating between physical addresses which are addresses in physical memory and virtual addresses which are addresses in virtual memory. In addition, in RAM (14) are stored page table information indicating a page table and anomaly detection information for detecting the presence or absence of an anomaly in translation between a virtual address and a physical address by the MMU (20), which is added to the page table information. In addition, a CPU (12), on the basis of the anomaly detection information, detects the presence or absence of the anomaly in translation between the virtual address and the physical address by the MMU (20). Accordingly, using the translation table which has been read into a buffer provided upon the memory management device, it is possible to inspect whether or not the central processing unit can perform access normally to the physical memory while another program is still running.