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:
Apr. 05, 2011
Filed:
Jan. 24, 2006
Michael A. Kozuch, Beaverton, OR (US);
James A. Sutton, Ii, Portland, OR (US);
David Grawrock, Aloha, OR (US);
Gilbert Neiger, Portland, OR (US);
Richard A. Uhlig, Hillsboro, OR (US);
Bradley G. Burgess, Austin, TX (US);
David I. Poisner, Folsom, CA (US);
Clifford D. Hall, Orangevale, CA (US);
Andy Glew, Portland, OR (US);
Lawrence O. Smith, Iii, Beaverton, OR (US);
Robert George, Austin, TX (US);
Michael A. Kozuch, Beaverton, OR (US);
James A. Sutton, II, Portland, OR (US);
David Grawrock, Aloha, OR (US);
Gilbert Neiger, Portland, OR (US);
Richard A. Uhlig, Hillsboro, OR (US);
Bradley G. Burgess, Austin, TX (US);
David I. Poisner, Folsom, CA (US);
Clifford D. Hall, Orangevale, CA (US);
Andy Glew, Portland, OR (US);
Lawrence O. Smith, III, Beaverton, OR (US);
Robert George, Austin, TX (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
An apparatus and method for unilaterally loading a secure operating system within a multiprocessor environment are described. The method includes disregarding a received load secure region instruction when a currently active load secure region operation is detected. Otherwise, a memory protection element is directed, in response to the received load secure region instruction, to form a secure memory environment. Once directed, unauthorized read/write access to one or more protected memory regions are prohibited. Finally, a cryptographic hash value of the one or more protected memory regions is stored within a digest information repository as a secure software identification value. Once stored, outside agents may request access to a digitally signed software identification value to establish security verification of secure software within the secure memory environment.