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.

Date of Patent:
Feb. 28, 2012

Filed:

Feb. 25, 2005
Applicants:

Alexander C. Klaiber, Mountain View, CA (US);

Kevin J. Mcgrath, Los Gatos, CA (US);

Hongwen Gao, Union City, CA (US);

Inventors:

Alexander C. Klaiber, Mountain View, CA (US);

Kevin J. McGrath, Los Gatos, CA (US);

Hongwen Gao, Union City, CA (US);

Assignee:

GLOBALFOUNDRIES Inc., Grand Cayman, KY;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

In one embodiment, a processor is configured to operate in a first mode in which privilege level protection is disabled and paging is enabled. In another embodiment, a method is contemplated including intercepting a write to a control register by a guest executing in a processor; determining that the write attempts to establish a first mode in the processor in which privilege level protection is disabled and paging is disabled; and causing the guest to execute in a second mode in which privilege level protection is disabled and paging is enabled instead of the first mode. A computer accessible medium comprising instruction implementing at least a portion of the method is also described.


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