The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2026
Filed:
Feb. 24, 2023
Ati Technologies Ulc, Markham, CA;
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Philip Ng, Toronto, CA;
Nippon Raval, Markham, CA;
Jeremy W. Powell, Austin, TX (US);
Donald Matthews, Jr., Ft. Collins, CO (US);
David Kaplan, Austin, TX (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
ATI TECHNOLOGIES ULC, Markham, CA;
Abstract
A processor includes a security processor and an input-output memory management unit (IOMMU). The security processor is configured to maintain device control information in a secure data structure and prevent a hypervisor from accessing the secure data structure. The IOMMU is configured to process at least one device request targeting a virtual machine from an input/output device based on the secure data structure.