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:
Dec. 29, 2022
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Ati Technologies Ulc, Markham, CA;
David Kaplan, Austin, TX (US);
Jelena Ilic, Austin, TX (US);
Nippon Raval, Markham, CA;
Philip Ng, Toronto, CA;
ADVANCED MICRO DEVICES, INC., Santa Clara, CA (US);
ATI TECHNOLOGIES ULC, Markham, CA;
Abstract
Techniques for implementing programmable control by a guest virtual machine (VM) of interrupts at a processing system using a guest owned backing page are disclosed. The VM programs a guest owned backing page (e.g., a data structure in memory) that designates particular interrupts that are to be blocked. In response to detecting a designated interrupt, system hardware or software blocks the interrupt, rather than executing an interrupt handler to process the interrupt. The VM is thereby able to protect confidential information and program behavior with less risk of a malicious hypervisor failing to protect the VM from, e.g., unexpected or unwanted interrupts, thereby improving overall system security and predictability.