Virtual processor interrupt tracking
US11579920B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Apr 19, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45591
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises an interrupt distributor to distribute virtual interrupts to one or more physical processors, each virtual interrupt to be handled by one of a plurality of virtual processors mappable to said one or more physical processors; and control circuitry to maintain virtual processor interrupt tracking information corresponding to a given virtual processor. The virtual processor interrupt tracking information includes a pending interrupt record tracking which types of virtual interrupts are pending for the given virtual processor, and separate from the pending interrupt record, a pending interrupt status indication indicating a pending interrupt status for the given virtual processor. The pending interrupt status indicates whether the number of pending virtual interrupts for the given virtual processor is zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.