System and method for transferring updates from virtual frame buffers
US8073990B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2009 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jun 13, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transferring data from a first to a second memory of a computer system. The method comprises (i) initializing a descriptor with a description of physical addressing of a first section of a first array of the first memory; (ii) updating a mask associated with the descriptor with an indication for transferring data from a first sub-section of the first section to the second memory, the mask and the data managed by an application on a first virtual machine of the computer system, the application isolated from the physical addressing of the first section; (iii) responsive to the updated mask, (a) determining physical addresses of the first sub-section based on the description, and (b), transferring the data from the first sub-section to the second memory; and (iv) clearing at least a portion of the updated mask to indicate completion of transferring the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.