System management controller entry into reduced power state responsive to other hardware entering reduced power state

摘要

A system includes an operating system, first hardware, second hardware, and a system management controller, the latter which also may be considered an integrated management module or a baseboard management module. The first hardware executes the operating system and is under control of the operating system. The operating system causes the first hardware to enter a first reduced power state. The second hardware is different than the first hardware and is not under control of the operating system. The system management controller is implemented by the second hardware. In response to the operating system causing the first hardware to enter the first reduced power state, the system management controller causes the second hardware to enter a second reduced power state corresponding to the first reduced power state. The first reduced power state may be a more-power-conserving reduced power state than the second reduced power state.