Methods and apparatus to process commands from virtual machines
US11403129B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2017 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Sep 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45583
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A disclosed example includes accessing, by virtual nonvolatile memory in a virtual machine monitor executing on one or more processors, a first command submitted to a guest queue by a native nonvolatile memory driver executing in a guest virtual machine; generating, by the virtual nonvolatile memory, a translated command based on the first command by translating a virtual parameter of the first command to a physical parameter associated with physical nonvolatile memory; submitting, by the virtual nonvolatile memory, the translated command to a shadow queue to be processed by the physical nonvolatile memory based on the physical parameter; and submitting, by the virtual nonvolatile memory, a completion status entry to the guest queue, the completion status entry indicative of completion of a direct memory access operation that copies data between the physical nonvolatile memory and a guest memory buffer corresponding to the guest virtual machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.