Systems and methods for NVMe controller virtualization to support multiple virtual machines running on a host
US9501245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 16, 2014 |
| Grant date | Nov 22, 2016 |
| Priority date | — |
| Expiry date | Feb 18, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/5077
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A new approach is proposed that contemplates systems and methods to virtualize a physical NVMe controller associated with a computing device or host so that every virtual machine running on the host can have its own dedicated virtual NVMe controller. First, a plurality of virtual NVMe controllers are created on a single physical NVMe controller, which is associated with one or more storage devices. Once created, the plurality of virtual NVMe controllers are provided to VMs running on the host in place of the single physical NVMe controller attached to the host, and each of the virtual NVMe controllers organizes the storage units to be accessed by its corresponding VM as a logical volume. As a result, each of the VMs running on the host has its own namespace(s) and can access its storage devices directly through its own virtual NVMe controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.