Electrical computers and digital processing systems: processing – Processing control – Mode switch or change
Reexamination Certificate
2005-02-25
2008-08-26
Chan, Eddie P (Department: 2183)
Electrical computers and digital processing systems: processing
Processing control
Mode switch or change
C712S244000
Reexamination Certificate
active
07418584
ABSTRACT:
In one embodiment, a register in a processor is programmable with an intercept indication indicative of whether or not an event that would cause a transition by the processor to a first mode is to be intercepted during execution of a guest. Responsive to the intercept indication and further responsive to detecting the event, execution circuitry in the processor is configured to exit the guest. In another embodiment, a method comprises: detecting an event that would cause a processor to transition to a first mode, wherein first code is to be executed in the first mode; and causing the first code to be executed in a guest responsive to the detecting. In still another embodiment, a computer accessible medium comprising instructions which when executed in response to detecting the event, cause the first code to be executed in a guest.
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Klaiber Alexander C.
McGrath Kevin J.
Strongin Geoffrey S.
Advanced Micro Devices , Inc.
Chan Eddie P
Faherty Corey S
Merkel Lawrence J.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
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