Virtualized instruction extensions for system partitioning
US9229884B2 · kind B2 · utility
2Cited by
34References
18Claims
0Family size
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Key dates
| Filing date | Apr 30, 2012 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Sep 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/14
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and circuit for a data processing system provide virtualized instructions for accessing a partitioned device (e.g., 14, 61) by executing a control instruction (47, 48) to encode and store an access command (CMD) in a data payload with a hardware-inserted partition attribute (LPID) for storage to a command register (25) at a physical address (PA) retrieved from a special purpose register (46) so that the partitioned device (14, 61) can determine if the access command can be performed based on local access control information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.