System and method of operating an information handling system

A method, comprising:

• determining, by a power sequencer device, that a platform reset signal from a processor of an information handling system has been asserted;
• determining, by the power sequencer device, that a power conservation state from the processor was not asserted within a first amount of time;
• determining, by the power sequencer device, that an operating system restart occurred;
• notifying via a first notification, by the power sequencer device, a hardware root of trust (HWRoT) device to authenticate information handling system firmware (IHSFW);
• asserting, by the power sequencer device, a resume reset signal to the processor;
• in response to the first notification, authenticating, by the HWRoT device, the IHSFW;
• de-asserting, by the power sequencer device, a power OK signal to the processor;
• removing, by the power sequencer device, power from the processor;
• determining, by the power sequencer device, that the resume reset signal to the processor is de-asserted and that the processor is out of the power conservation state;
• and
• providing, by the power sequencer device, power to the processor.

A microcontroller, comprising:

• a processor;
• and
• a non-volatile memory medium, coupled to the processor, that stores instructions that, when executed by the processor, cause the microcontroller to:
• determine that a platform reset signal from a processor of an information handling system has been asserted;
• determine that a power conservation state from the processor of the information handling system was not asserted within a first amount of time;
• determine that an operating system restart occurred;
• notify, via a notification, a hardware root of trust (HWRoT) device to authenticate information handling system firmware of the information handling system;
• assert a resume reset signal to the processor of the information handling system;
• de-assert a power OK signal to the processor of the information handling system;
• remove power from the processor of the information handling system;
• determine that the resume reset signal to the processor of the information handling system is de-asserted and that the processor of the information handling system is out of the power conservation state;
• and
• provide power to the processor of the information handling system via at least one voltage regulator.