Resource management for virtualization of graphics adapters
US7650603B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 2005 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Oct 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45579
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms are provided for the sharing of graphics adapter resources among multiple partitions in a virtual machine environment. A first mechanism allows for the sharing of graphics adapter resources so that one partition, a video service partition, containing a graphics proxy process, can use this graphics proxy process to offer graphics adapter resources to another partition, a video client partition. The graphics proxy process controls access time by any given partition to the graphics adapter resources. In one aspect, it uses a time bank to control access time, and the time bank controls how long a virtual graphics adapter offered to the video client partition can access the graphics adapter resources. A second mechanism synchronizes virtual memory in the video client partition to virtual memory in the video service partition. A third mechanism allows for multiple video client partition overlays using a pixel-shader-based virtual overlay mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.