Pass-through network interface controller configured to support latency sensitive virtual machines
US9552216B2 · kind B2 · utility
15Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2014 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Jan 28, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2209/5017
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A host computer has a plurality of virtual machines executing therein under the control of a hypervisor, where the host also includes a physical network interface controller (NIC). An interrupt controller detects an interrupt generated by the physical NIC, where the interrupt corresponds to a virtual machine. If the virtual machine has exclusive affinity to one or more physical central processing units (CPUs), then the interrupt is forwarded to the virtual machine. If the virtual machine does not have exclusive affinity, then a process in the hypervisor is invoked to forward the interrupt to the virtual machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.