Method for locking shared resources connected by a PCI bus

Details Method for locking shared resources connected by a PCI bus Method for locking shared resources connected by a PCI bus

2005-12-27

2005-12-27

Tran, Denise (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

C710S200000, C707S793000, C709S248000

Reexamination Certificate

active

06981108

ABSTRACT:
A computer system according to the present invention comprises at least two CPUs; at least one shared system resource accessible to each of the CPUs; and shared memory shared by the CPUs. The shared memory has therein a resource locking table, comprising memory elements. Each of the memory elements is designated for being written to by only one of the at least two CPUs. Each of the at least two CPUs is communicatively interconnected with the shared memory and the shared system resource, and the resource locking table is operative by each of the CPUs.

REFERENCES:
patent: 5142676 (1992-08-01), Fried et al.
patent: 5535365 (1996-07-01), Barriuso et al.
patent: 5613139 (1997-03-01), Brady
patent: 5987550 (1999-11-01), Shagam
patent: 6076126 (2000-06-01), Shagam

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