Efficient operating system interposition mechanism

Details Efficient operating system interposition mechanism Efficient operating system interposition mechanism

2011-05-17

2011-05-17

Ho, Andy (Department: 2194)

Electrical computers and digital processing systems: interprogra

Interprogram communication using message

Object oriented message

C719S312000, C719S319000, C712S220000, C712S228000, C712S233000

Reexamination Certificate

active

07945915

ABSTRACT:
Methods and systems for efficiently interpreting operating system service requests on the same register or vector of a processor or CPU where the operating system service requests are initiated from native and non-native applications are provided. More particularly, a switching layer can enable processing of the operating system service requests by routing control of a particular request to an appropriate kernel subsystem or module based on the type of operating system service being requested and the type of application initiating the request. Additionally, the performance impact of the switching layer for native applications is overcome by dynamically reprogramming the processor or CPU on every change of active process so that only foreign applications are subject to the processing requirements of the switching layer.

REFERENCES:
patent: 5900025 (1999-05-01), Sollars
patent: 6086623 (2000-07-01), Broome et al.
patent: 6530017 (2003-03-01), Dice et al.
patent: 6944699 (2005-09-01), Bugnion et al.
patent: 2007/0143436 (2007-06-01), Heffley et al.

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