| 摘要 |
PROBLEM TO BE SOLVED: To easily determine the factor of memory breakdown.SOLUTION: A CPU interface 352 receives control information from a virtual CPU, and stores it in a monitor address leading register 353, a monitor size register 354, and a log output control flag register 355. A log output control circuit 356 receives memory access information from a virtual CPU, a virtual DMA (Direct Access Memory) controller and a virtual device, and when determining to output a log 401 in accordance with a control flag stored in the log output control flag register 355, acquires a monitor leading address and a monitor size from the monitor address leading register and the monitor size register, and when a write address included in the memory access information is included in a range (monitor area) of a value calculated by adding a monitor size to a monitor address from the monitor leading address, outputs the memory access information as the log 401. |
