Logical partitioning via hypervisor mediated address...

Details Logical partitioning via hypervisor mediated address... Logical partitioning via hypervisor mediated address...

2005-04-05

2005-04-05

An, Meng-Al T. (Department: 2127)

Electrical computers and digital processing systems: virtual mac

Task management or control

Process scheduling

C718S100000, C718S102000, C711S202000, C711S203000, C711S206000

Reexamination Certificate

active

06877158

ABSTRACT:
A method, system, and apparatus for mediating address translation in a logically partitioned data processing system is provided. In one embodiment, a firmware component receives from an operating system within a logical partition a request to access a physical resource. The firmware component, responsive to a determination that the physical resource has been allocated to the logical partition, modifies an address translation table, if necessary, to allow access to the physical resource by the operating system. The operating system is prevented from directly modifying the address translation table, thus preventing potential interference between operating systems within the logically partitioned data processing system.

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