Providing access from outside a multicore processor SoC to individually configure voltages

A method comprising:

• identifying a first physical characteristic of a first core of a plurality of architecturally identical cores of a processor;
• identifying a second physical characteristic of a second core different from the first physical characteristic;
• storing a plurality of embedded values corresponding to default voltages of the plurality of architecturally identical cores in the processor, each embedded value to be used to determine a default voltage for a respective core of the plurality of architecturally identical cores;
• receiving, via a messaging interface, a plurality of values for a corresponding plurality of cores of the architecturally identical cores from a component over the messaging interface, each value of the plurality of values for one individual core of the corresponding plurality of cores;
• and
• individually setting, by a processor control unit, PCU, voltages of individual cores of the corresponding selected subset of cores of the plurality of cores of the architecturally identical cores based on the plurality of values provided by the component, wherein the voltages are to individually override corresponding default voltages and are different from the corresponding default voltages.

A non-transitory machine-readable medium having program code stored thereon which, when executed by a machine, causes the machine to perform the operations of:

• identifying a first physical characteristic of a first core of a plurality of architecturally identical cores of a processor;
• identifying a second physical characteristic of a second core different from the first physical characteristic;
• storing a plurality of embedded values corresponding to default voltages of the plurality of architecturally identical cores in the processor, each embedded value to be used to determine a default voltage for a respective core of the plurality of architecturally identical cores;
• receiving, via a messaging interface, a plurality of values for a corresponding plurality of cores of the architecturally identical cores from a component over the messaging interface, each value of the plurality of values for one individual core of the corresponding plurality of cores;
• and
• individually setting, by a processor control unit, PCU, voltages of individual cores of the corresponding plurality of cores of the architecturally identical cores based on the plurality of values provided by the component, wherein the voltages are to individually override corresponding default voltages and are different from the corresponding default voltages.