Reintialization of a processing system from volatile memory upon resuming from a low-power state
US9182999B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/32
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Boot configuration information is stored to a volatile memory of a processing system during a low-power state. When resuming from the low-power state, a processor device accesses configuration information for a memory controller from a non-volatile memory and restores the memory controller using the configuration information so as to permit access to the volatile memory. The processor device then configures the initial contexts one or more processor cores using the core state information maintained by the volatile memory during the low-power state and accessed via the configured memory controller, and the one or more processor cores completes the boot process by executing resume boot code maintained by the volatile memory during the low-power state and accessed via the configured memory controller, rather than accessing boot code from a non-volatile memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.