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:
Jul. 14, 2026
Filed:
Dec. 22, 2021
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Sudhanva Gurumurthi, Austin, TX (US);
Vilas Sridharan, Jamaica Plain, MA (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
A method and apparatus for mitigating row hammer attacks is provided. A row hammer alert is generated by a component of a memory architecture controlling operation of a memory device. The component may be a memory controller, coherency logic, or data fabric. The component obtains a physical address of an aggressor row that caused the alert and obtains an identifier of an execution context corresponding to the physical address. The component generates an error message for a processing device, the error message including the identifier of the execution context. The processing device retrieves the error message when performing a context switch. The processing device then generates an event received by the operating system. The operating system then takes action to reduce row hammer by the execution context, such as ending, restarting, or throttling the execution context.