Device and method for determining whether to hold data in a memory area before transitioning to a power saving state

摘要

There is provided an information processing device including a memory, an OS that acquires location information of data stored in the memory, and a BIOS that performs power control to cause the memory to transition to a power saving state with reference to the location information acquired by the OS.

主权项

1. An information processing device comprising:
a memory; an OS that acquires location information of a plurality of data stored in a plurality of memory areas in the memory; and a BIOS that performs power control to cause the memory to transition to a power saving state with reference to the location information acquired by the OS, in which, for each of the memory areas, the location information includes information indicating whether the data thereof is data to be held that should be held in the power saving state in accordance with a result of a determination whether a necessity for holding the data is determinable, wherein, when the result indicates the necessity for holding the data is undeterminable, the location information indicates the result with a first indication which is other than (i) a second indication indicated when the result indicates the data is data to be held and (ii) a third indication indicated when the result indicates the data is not data to be held, wherein the BIOS includes a memory state control unit that performs power control of the memory to return the memory from the power saving state with reference to the location information acquired by the OS, in which at return from the power saving state, location of the hold data in the memory is changed back to a location in the memory before transition to the power saving state.