公开(公告)号：US20210200860A1

公开(公告)日：2021-07-01

申请号：US16728843

申请日：2019-12-27

Applicant: Intel Corporation

Inventor： ALEXANDER GENDLER ,  SAGI MELLER ,  GAVRI BERGER ,  IGOR YANOVER

IPC: G06F21/54 ,  G06F1/32 ,  G06F9/38 ,  G06F21/56

Abstract: An apparatus and method for intelligent power virus protection in a processor. For example, one embodiment of a processor comprises: first circuitry including an instruction fetch circuit to fetch instructions, each instruction comprising an instruction type and an associated width comprising a number of bits associated with source and/or destination operand values associated with the instruction; detection circuitry to detect one or more instructions of a particular type and/or width; evaluation circuitry to evaluate an impact of power virus protection (PVP) circuitry when executing the one or more instructions based on the detected instruction types and/or widths; and control circuitry, based on the evaluation, to configure the PVP circuitry in accordance with the evaluation performed by the evaluation circuitry.

公开(公告)号：US20210018971A1

公开(公告)日：2021-01-21

申请号：US17042804

申请日：2018-05-01

Applicant: Intel Corporation

Inventor： EFRAIM ROTEM ,  ELIEZER WEISSMANN ,  ERIC DEHAEMER ,  ALEXANDER GENDLER ,  NADAV SHULMAN ,  KRISHNAKANTH SISTLA ,  NIR ROSENZWEIG ,  ANKUSH VARMA ,  ARIEL SZAPIRO ,  ARYE ALBAHARI ,  IDO MELAMED ,  NIR MISGAV ,  VIVEK GARG ,  NIMROD ANGEL ,  ADWAIT PURANDARE ,  ELKANA KOREM

IPC: G06F1/329 ,  G06F1/3206 ,  G06F9/48 ,  G06F9/30 ,  G06F9/4401

Abstract: A local power control arbiter is provided to interface with a global power control unit of a processing platform having a plurality of processing entities. The local power control arbiter controls a local processing unit of the processing platform. The local power arbiter has an interface to receive from the global power control unit, a local performance limit allocated to the local processing unit depending on a global power control evaluation and processing circuitry to determine any change to one or more processing conditions prevailing in the local processing unit on a timescale shorter than a duration for which the local performance limit is applied to the local processing unit by the global power control unit and to select a performance level for the local processing unit depending on both the local performance limit and the determined change, if any, to the prevailing processing conditions on the local processing unit.