Patent · US Active

Direct memory access mechanism

US11494523B2 · kind B2 · utility

0Cited by

0References

18Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Abhishek Basak · Hillsboro, US
Pradeep M. Pappachan · Hillsboro, US
Siddhartha Chhabra · Portland, US
Alpa T. Narendra Trivedi · Hillsboro, US
Erdem Aktas · Beaverton, US
Ravi L. Sahita · Portland, US

Key dates

Filing date	Aug 14, 2020
Grant date	Nov 8, 2022
Priority date	—
Expiry date	Dec 31, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/621
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An apparatus to facilitate security of a shared memory resource is disclosed. The apparatus includes a memory device to store memory data, wherein the memory device comprises a plurality of private memory pages associated with one or more trusted domains and a cryptographic engine to encrypt and decrypt the memory data, including a key encryption table having a key identifier associated with each trusted domain to access a private memory page, wherein a first key identifier is generated to perform direct memory access (DMA) transfers for each of a plurality of input/output (I/O) devices.

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