Patent · US Active

Method for isolating third party pre-boot firmware from trusted pre-boot firmware

US7827371B2 · kind B2 · utility

14Cited by

3References

9Claims

0Family size

Assignee

Intel Corporation · US

Inventors

Jiewen Yao · Shanghai, CN
Vincent J. Zimmer · Federal Way, US
Qin Long · Shanghai, CN
Liang Cui · 安丰镇, CN

Key dates

Filing date	Aug 30, 2007
Grant date	Nov 2, 2010
Priority date	—
Expiry date	Jan 30, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG06F2221/2149
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In one embodiment, the present invention includes a method for determining if an isolation driver is present and a processor supports virtualization, launching the isolation driver in a first privilege level different than a system privilege level and user privilege level, creating a 1:1 virtual mapping between a virtual address and a physical address, using the isolation driver, and controlling access to a memory page using the isolation driver. Other embodiments are described and claimed.

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