Determining a virtual interrupt source number from a physical interrupt source number
US9063918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Dec 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/5005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In an embodiment, a request is received from a virtual machine that specifies a virtual ISN and a hardware resource. A physical ISN is selected that is assigned to the hardware resource. The physical ISN is assigned to the virtual ISN as an assigned pair. The request and the physical ISN are sent to the hardware resource. A physical interrupt is received from the hardware resource that specifies the physical ISN. In response to the receipt of the physical interrupt that specifies the physical ISN, the virtual machine and the virtual ISN that is assigned to the first physical ISN are determined from the physical interrupt and the assigned pair from among a plurality of virtual machines. In response to determining the virtual machine and first virtual ISN that is assigned to the physical ISN, a virtual interrupt that comprises that virtual ISN is sent to the virtual machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.