Electrical computers and digital processing systems: virtual mac – Task management or control
Reexamination Certificate
2007-05-08
2007-05-08
Bullock, Jr., Lewis A. (Department: 2195)
Electrical computers and digital processing systems: virtual mac
Task management or control
C712S220000, C713S164000, C713S166000, C726S002000
Reexamination Certificate
active
09544492
ABSTRACT:
A privilege level re-mapping mechanism is provided to a processor to re-map privilege levels. The re-mapping mechanism is placed in between the control registers and the privilege checking circuitry, to enable the re-mapping to be dynamically performed in real time prior to privilege checking. The novel dynamic re-mapping of privilege levels prior to privilege checking enables tasks to be executed with relative privilege level relationships that are different from what were nominally assigned to the tasks. In one embodiment, complementary selection mechanism is also provided to enable the novel dynamic re-mapping to be conditionally performed.
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Bullock, Jr. Lewis A.
Hall Aluminum LLC
Schwabe Williamson & Wyatt P.C.
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