Method and apparatus for controlling access to shared...

Details Method and apparatus for controlling access to shared... Method and apparatus for controlling access to shared...

2001-12-05

2008-09-23

An, Meng-Ai (Department: 2195)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

C710S200000

Reexamination Certificate

active

07428732

ABSTRACT:
The disclosure relates to a control mechanism for controlling access by multiple logical processors to shared resources on a common microchip. The processors attempt to reserve exclusive use of needed resources by updating a resource descriptor. The resource descriptor describes which logical processors have exclusive use of which resources. In order to update the resource descriptor, a logical processor must first obtain exclusive access to the resource descriptor by updating a semaphore.

REFERENCES:
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patent: 5544353 (1996-08-01), Forman et al.
patent: 5895494 (1999-04-01), Scalzi et al.
patent: 6795901 (2004-09-01), Florek et al.
patent: 6823472 (2004-11-01), DeKoning et al.

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