Intel Corporation

Amit Gabai

Efraim Rotem

Doron Rajwan

Nadav Shulman

Nir Rosenzweig

Jorge Pedro Rodriguez

Gal Leibovich

Tomer Ziv

Jeffrey A Carlson

Ankush Varma

Alexander Gendler

Nazar Syed Haider

Ariel Szapiro

Adwait Purandare

Daniela Kaufman

Gilad Bomstein

Shlomo Attias

An adaptive or dynamic power virus control scheme (hardware and/or software) that dynamically adjusts maximum dynamic capacitance (CdynMax) and corresponding maximum frequency (P0nMax) setting per application executed on a processor core. A power management unit monitors telemetry such as a number of throttled cycles due to CdynMax threshold excursions cycles for the processor core and a cost of average cycle Cdyn cost for the processor core. As the number of throttling cycles increases for the processor core, the aCode firmware of the power management unit decides to increase the Cdyn level or threshold for that core (e.g., to make the threshold less aggressive). As the average Cdyn cost over a number of cycles becomes lower than a threshold, aCode adjusts the threshold to a lower threshold (e.g., more aggressive threshold) and lower Cdyn.

Apparatus and method to detect power supply security attack and risk mitigation

A method and apparatus for providing proactive current protection. In one embodiment, the method comprises: prior to transitioning to a new state for an integrated circuit (IC), calculating a sum of expected powers for a plurality of domains in the IC by calculating an expected current for each of the plurality of domains based on an individual domain frequency in the new state and multiplying the expected current with its associated voltage for each of the plurality of domains for the new state; comparing the sum to a power limit; and if the sum is greater than the power limit, then reducing the individual domain frequency associated with at least one domain in the plurality of domains to maintain the total instantaneous power of the IC below the power limit.

System maximum current protection

Growing community of inventors

Kiriyat Biyalik, Israel

Amit Gabai