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. 13, 2021
Filed:
Mar. 29, 2018
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Dean A. Liberty, Nashua, NH (US);
Vilas K. Sridharan, Brookline, MA (US);
Michael T. Clark, Austin, TX (US);
Jelena Ilic, Austin, TX (US);
David S. Christie, Austin, TX (US);
James R. Williamson, Austin, TX (US);
Cristian Constantinescu, Fort Collins, CO (US);
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
Systems, apparatuses, and methods for implementing a hardware enforcement mechanism to enable platform-specific firmware visibility into an error state ahead of the operating system are disclosed. A system includes at least one or more processor cores, control logic, a plurality of registers, platform-specific firmware, and an operating system (OS). The control logic allows the platform-specific firmware to decide if and when the error state is visible to the OS. In some cases, the platform-specific firmware blocks the OS from accessing the error state. In other cases, the platform-specific firmware allows the OS to access the error state such as when the OS needs to unmap a page. The control logic enables the platform-specific firmware, rather than the OS, to make decisions about the replacement of faulty components in the system.