64-bit open firmware implementation and associated api
US6802063B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2000 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Nov 29, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45541
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An improved logically partitioned data processing system is provided. In one embodiment, the data processing system includes a plurality of hardware devices, including processors, and a plurality of operating systems. Each of the plurality of operating systems executes within a separate partition within the logically partitioned data processing system. A firmware component provides each operating system with a virtualized copy of the hardware devices, thus maintaining separation between each of the logical partitions. The firmware component is implemented as 64-bits, thus allowing each of the processors to execute in 64-bit mode and eliminating the need for virtual address translation from a 32-bit virtual address to a 64-bit physical address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.