Patent · US Active

Platform firmware armoring technology

US8522322B2 · kind B2 · utility

12Cited by

0References

25Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Allen R. Wishman · Cornelius, US
Sergiu D. Ghetie · Hillsboro, US
Michael Neve de Mevergnies · Beaverton, US
Ulhas Warrier · Beaverton, US
Adil Karrar · Santa Clara, US
Douglas R. Moran · Folsom, US
Kirk D. Brannock · Olympia, US

Key dates

Filing date	Sep 22, 2010
Grant date	Aug 27, 2013
Priority date	—
Expiry date	Jul 19, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2137
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method, apparatus, method, machine-readable medium, and system are disclosed. In one embodiment the method includes is a processor. The processor includes switching a platform firmware update mechanism located in a computer platform to a platform firmware armoring technology (PFAT) mode on a boot of the computer platform. The computer platform includes a platform firmware storage location that stores a platform firmware. The method then persistently locks the platform firmware storage location in response to the platform firmware update mechanism switching to the PFAT mode. When persistently locked, writes are only allowed to the platform firmware storage location by an Authenticated Code Module in the running platform and only after a platform firmware update mechanism unlocking procedure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.