Information processing apparatus and memory system

An information processing apparatus comprising:

• a host having a main memory;
• and
• a memory system having a non-volatile memory and being connected to the host via a communication path,
• wherein the memory system has a first controller for controlling data transfer between the non-volatile memory and the host,
• the host has a second controller for controlling data transfer between the main memory and the memory system,
• the first controller has
• a memory access unit configured to execute data transfer toward a memory region which is a part of the main memory,
• a request issuing unit configured to issue a first request which is a request for data transfer toward the memory region, and
• an interface unit connected to the second controller via the communication path,
• the memory access unit converts the first request issued by the request issuing unit into transmission information,
• the interface unit transmits the transmission information to the second controller according to an instruction from the memory access unit, and
• the second controller converts the transmission information from the interface unit into a second request which is a request for data transfer toward the memory region and executes a process based on the second request.