Controlling access to a control register of a microprocessor

Details Controlling access to a control register of a microprocessor Controlling access to a control register of a microprocessor

2006-10-31

2006-10-31

Padmanabhan, Mano (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

Reexamination Certificate

active

07130977

ABSTRACT:
Controlling access to a control register of a microprocessor. A method of controlling access to a control register such as CR3,for example, of a processor having a normal execution mode and a secure execution mode may include storing address translation table information in the control register, allowing a software invoked write access to modify the address translation table information during the normal execution mode and selectively inhibiting the software invoked write during the secure execution mode.

REFERENCES:
patent: 5987604 (1999-11-01), Edrich
patent: 6327652 (2001-12-01), England et al.
patent: 6330670 (2001-12-01), England et al.
patent: 6854046 (2005-02-01), Evans et al.
patent: 2002/0002673 (2002-01-01), Narin
patent: 2003/0101322 (2003-05-01), Gardner
patent: 2003/0200402 (2003-10-01), Willman et al.
patent: 1 209 563 (2001-11-01), None
U.S. Appl. No. 10/419,084.
U.S. Appl. No. 10/429,132.
U.S. Appl. No. 10/654,734.
U.S. Appl. No. 10/419,086.
U.S. Appl. No. 10/419,084.
U.S. Appl. No. 10/419,038.
U.S. Appl. No. 10/419,083.
U.S. Appl. No. 10/419,090.
U.S. Appl. No. 10/419,121.
U.S. Appl. No. 10/419,085.
U.S. Appl. No. 10/419,122.
U.S. Appl. No. 10/419,120.
“Microsoft Scheme for PC Security Faces Flak”, Merritt,EE Times, Issue 1227, Jul. 15, 2002.

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