Patent ID: 9612652
Date: 2017-04-04
CPC Classifications: G06F,Y02D

Claim:
1. An apparatus comprising: logic to determine whether a dedicated power management link, coupled between a processor and an embedded controller, is available for communication based on a wake state of the processor communicated via a sideband channel, coupled between the processor and the embedded controller, wherein the dedicated power management link is to only transmit power management commands or signals; logic, at the embedded controller, to determine whether to wake the processor from a sleep state in response to a determination that the processor is in the sleep state; logic, at the processor, to detect activity on the dedicated power management link and, in response to detection of the activity, to cause transmission of a request from a platform controller to wake the processor from the sleep state over the sideband channel, wherein the embedded controller is to cause the activity on the dedicated power management link; and logic, at the platform controller, to send the request to wake the processor from the sleep state over the sideband channel in response to the determination that the processor is in the sleep state, wherein the platform controller is to couple the processor and the embedded controller over the sideband channel.