Partitioning memory mapped device configuration space
US8041920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Jan 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/1483
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of apparatuses, methods, and systems for partitioning memory mapped device configuration space are disclosed. In one embodiment, an apparatus includes a configuration space address storage location, an access map storage location, and addressing logic. The configuration space address storage location is to store a pointer to a memory region to which transactions to configure devices in a partition of a partitioned system are addressed. The access map storage location is to store an access map or a pointer to an access map. The addressing logic is to use the access map to determine whether a configuration transaction from a processor to one of the devices is to be allowed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.