Methods and apparatus to process commands from virtual machines
US11947991B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2022 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Jun 21, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disclosed example includes accessing, by a backend block service driver in an input/output virtual machine executing on one or more processors, a first command submitted to a buffer by a paravirtualized input/output frontend block driver executing in a guest virtual machine; generating, by the backend block service driver, a translated command based on the first command by translating a virtual parameter of the first command to a physical parameter associated with a physical resource; submitting, by the backend block service driver, the translated command to an input/output queue to be processed by the physical resource based on the physical parameter; and submitting, by the backend block service driver, a completion status entry to the buffer, the completion status entry indicative of completion of a direct memory access operation that copies data between the physical resource and a guest memory buffer corresponding to the guest virtual machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.