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AssigneeAdvanced Micro Devices, Inc.
InventorsBenjamin Tsien, Denis Rystsov, Sebastien Nussbaum
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The present disclosure presents methods and apparatuses for controlling a power state, which may include a C-state, of one or more processing cores of a processor. In an aspect, an example method of securing a power state change of a processor is presented, the method including the steps of receiving a power state change request from the processor, the processor having a plurality of potential power states each including an operating power profile; determining a power state change request mode associated with the processor; forwarding the power state change request to a security processor where the power state change request mode is a one-time request mode; receiving a power state change request response from the security processor in response to the request; and adjusting the current power state of the processor to the target power state where the power state change request response comprises a power state change approval.
A method of securing a power state change of a processor, the method comprising:
An apparatus for securing a power state change of a processor, comprising:
A non-transitory storage medium that comprises executable instructions thereon that when executed by an integrated circuit fabrication system, causes the system to form an integrated circuit that comprises a secure power state module for adjusting a power state of a processor, comprising:
Dependencies are inferred from the claim text.