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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.:

US 10635818 B1

PDFFull Text
Expired
Date of Patent:
Apr. 28, 2020

Filed:

Aug. 25, 2017

Blocking runtime firmware variable access

Applicant:

American Megatrends International, Llc, Norcross, GA (US);

Inventor:

Srinivasan N. Rao, Norcross, GA (US);

Assignee:

American Megatrends International, LLC, Norcross, GA (US);

Attorneys:

Newport IP, LLC

Leonard J. Hope

Primary Examiner:

Jaweed A Abbaszadeh

Assistant Examiner:

Brian J Corcoran

Int. Cl.
CPC ...
G06F 21/57 (2013.01); G06F 9/4401 (2018.01); G06F 12/02 (2006.01); G06F 21/53 (2013.01);
U.S. Cl.
CPC ...
G06F 21/572 (2013.01); G06F 9/4401 (2013.01); G06F 12/0246 (2013.01); G06F 21/53 (2013.01); G06F 2212/7201 (2013.01); G06F 2221/2149 (2013.01);
Abstract

Technologies are disclosed herein for blocking access to some firmware variables during runtime. These firmware variables may be disallowed from runtime access (e.g., read/write access), by placing an indication of the firmware variables on a runtime blocklist. Upon completion of booting, runtime firmware services may access the runtime blocklist to determine if a firmware variable is to be accessed during runtime. In some cases, a firmware variable may be disallowed from runtime access by inclusion in the runtime blocklist, even if that firmware variable has an attribute that indicates that it is runtime accessible. The runtime blocklist may be generated based at least in part on indications of the firmware variables to be blocked during runtime. Additionally, runtime accessible firmware variables may be exposed to higher-level software, such as an O/S, if the firmware variables are not included in the runtime blocklist.

Find Patent Forward Citations

Rao, Srinivasan. (2020). Blocking runtime firmware variable access (U.S. Patent No. 10635818). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10635818

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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