System, Apparatus And Method For Processor-External Override Of Hardware Performance State Control Of A Processor

A machine-readable medium having stored thereon instructions, which if performed by a machine cause the machine to perform a method comprising:

• receiving, in a selection circuit of a processor, override information from a management controller of a platform including the processor, the override information including one or more override values and one or more override indicators, the override information associated with hardware performance state control of the processor;
• determining whether at least one of the one or more override indicators is active;
• in response to determining that the at least one of the one or more override indicators is active, sending at least one of the one or more override values associated with the active at least one of the one or more override indicators to a power controller of the processor;
• and
• controlling, by the power controller, a performance state of at least one of a plurality of cores of the processor based at least in part on the at least one of the one or more override values.