Controlling access by a configuration to an adapter function
US8626970B2 · kind B2 · utility
32Cited by
123References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2010 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Access to an input/output adapter by a configuration is controlled. For each requested access to an adapter, checks are made to determine whether the configuration is authorized to access the adapter. If it is not authorized, then access is denied. If it is authorized, but access should be temporarily blocked, then instruction execution is altered to indicate such. If access is permitted, but should be blocked for another reason (other than temporarily), then access is denied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.