Patent · US Active

Scheduling a secure code segment on a processor core of a processing unit

US12314755B2 · kind B2 · utility

0Cited by

5References

23Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Cedric Lichtenau · Stuttgart, DE
Jakob C. Lang · Altdorf, DE
Eberhard Pasch · Lörrach, DE
Christian Borntraeger · Stuttgart, DE

Key dates

Filing date	Dec 3, 2021
Grant date	May 27, 2025
Priority date	—
Expiry date	Mar 30, 2043

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2143
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A computer-implemented method, computer system and a computer program product schedule a secure code segment on a processor core of a processing unit between threads, wherein the processing unit is executing a program code of operating instructions of a thread on the at least one processor core. The method comprises a first thread requesting exclusive secure execution of a secure code segment of the program code on the at least one processor core. The method also comprises checking the request based on a secure-operation parameter that controls a request for exclusive secure execution of a secure code segment. The method further comprises, if the secure-operation parameter is below a predefined threshold value, setting the at least one processor core to exclusive secure execution for the secure code segment and periodically resetting the secure-operation parameter. If the secure-operation parameter is not below the threshold, then the method switches to another thread.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.