Using a decrementer interrupt to start long-running hardware operations before the end of a shared processor dispatch cycle
US10678722B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Dec 6, 2016 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Aug 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/452
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and computer program products to perform an operation comprising processing a first logical partition on a shared processor for the duration of a dispatch cycle, issuing, by a hypervisor, at a predefined time prior to completion of the dispatch cycle, a lightweight hypervisor decrementer (HDEC) interrupt, and responsive to the lightweight HDEC interrupt, initiating an asynchronous hardware operation on the shared processor prior to completion of the dispatch cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.