Logically partitioned processing system having hypervisor...

Details Logically partitioned processing system having hypervisor... Logically partitioned processing system having hypervisor...

2006-02-21

2006-02-21

Lee, Thomas (Department: 2127)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

Reexamination Certificate

active

07003771

ABSTRACT:
A method, apparatus, and system for preventing each of a plurality of operating system within a logically partitioned data processing system from interfering with the operation of the other operating systems is provided. In one embodiment, a logically partitioned data processing system includes a plurality of logical partitions; a plurality of operating systems, a plurality of assignable resources, at least one non-assignable resource, and a hypervisor. Each of the plurality of operating systems is assigned to a separate one of the plurality of logical partitions and each of the plurality of assignable resources is assigned to one of the plurality of logical partitions. The hypervisor provides a set of services to each of the plurality of logical partitions, wherein these services safely perform modifications to non-assignable processing system resources in response to operating system requests without allowing direct access to the non-assignable resources by the operating system image. Thus, each operating system is prevented from modifying the non-assignable resource in such a way that interferes with the operation of other ones of the plurality of operating systems.

REFERENCES:
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patent: 2002/0016891 (2002-02-01), Noel et al.
patent: 2002/0016892 (2002-02-01), Zalewski et al.

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