Method for limiting the size of a local storage of a processor
US7533238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2005 |
| Grant date | May 12, 2009 |
| Priority date | — |
| Expiry date | Aug 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0223
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for limiting the size of a local storage of a processor is provided. A facility is provided in association with a processor for setting a local storage size limit. This facility is a privileged facility and can only be accessed by the operating system running on a control processor in the multiprocessor system or the associated processor itself The operating system sets the value stored in the local storage limit register when the operating system initializes a context switch in the processor. When the processor accesses the local storage using a request address, the local storage address corresponding to the request address is compared against the 1ocal storage limit size value in order to determine if the local storage address, or a modulo of the local storage address, is used to access the local storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.