Realtime hypervisor with priority interrupt support
US9841993B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Dec 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A problem with conventional art is that, in an environment wherein a plurality of interrupts having different priorities for processing occur in an overlapping manner from external devices, responding to high-priority interrupts while ensuring execution intervals of periodic tasks has been difficult. A partition execution control device according to the present invention comprises: a first management table which stores, for each partition, initial time slices, remaining time slices, execution priorities, execution states, and an interrupt disable level for suppressing the interrupts from the external devices; and a second management table which stores the interrupt priorities of the external devices and partitions to which the interrupts are to be output. This partition execution control device controls the execution of the partitions using the execution priorities and the time slices stored in the management tables, and controls the execution of the interrupts using the interrupt disable levels and the interrupt priorities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.