Patent · US Active

Method, apparatus, and system for storing memory encryption realm key IDs

US11789874B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Darren Lasko · Forest, US
Roberto Avanzi · Munich, DE
Thomas Philip Speier · Holly Springs, US
Harb Abdulhamid · Raleigh, US
Vikramjit Sethi · Austin, US

Key dates

Filing date	Aug 21, 2019
Grant date	Oct 17, 2023
Priority date	—
Expiry date	May 30, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/402
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, apparatus, and system for storing memory encryption realm key IDs is disclosed. A method comprises accessing a memory ownership table with a physical address to determine a realm ID associated with the physical address, accessing a key ID association structure with the realm ID to determine a realm key IS associated with the realm ID, and initiating a memory transaction based on the realm key ID. Once retrieved, the realm key ID may be stored in a translation lookaside buffer.

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