Managing access, by operating system images of a computing environment, of input/output resources of the computing environment
US7177961B2 · kind B2 · utility
63Cited by
28References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Sep 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6218
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An input/output subsystem is configured as a plurality of input/output subsystem images, each of which appears to a program as an independent input/output subsystem. In response to an operating system image submitting an input/output (I/O) request requesting access to an input/output subsystem image, a determination is made as to whether the operating system image is authorized to access the input/output subsystem image. In response to the access being authorized, the I/O request is authorized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.