Patent · US Active

Virtual machine monitor interrupt support for computer processing unit (CPU)

US10248595B2 · kind B2 · utility

1Cited by

6References

19Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Frank Hellwig · Wunstorf, DE
Gerhard Wirrer · Schliersee, DE
Glenn Ashley Farrall · Long Ashton, GB
Neil Hastie · Gloucester, GB

Key dates

Filing date	Aug 10, 2017
Grant date	Apr 2, 2019
Priority date	—
Expiry date	Aug 10, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG06F2009/45591
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An interrupt interface of a central processing unit (CPU) comprises a bus with a plurality of interfaces to various components of the CPU. These components can include a memory that includes instructions to execute operations of a processor component, a plurality of virtual machines (VMs) and a virtual machine monitor (VMM)/hypervisor configured to execute the plurality of VMs. The processor can receive interrupt requests (interrupt) as service requests in parallel, which can be executed by the VMM or any one or more of the plurality of VMs to execute VM applications on a dedicated instance of a guest operating system for a task. The processor can further determine whether to grant an interrupt request to the VMM and the VMs based on predetermined criteria, including a current task priority, a pending interrupt priority, or an interrupt enable, associated with the current status of each of the component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.