Method for dynamically modifying PCH PCIE root port where onboard VGA is located
US11816058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2021 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | Apr 26, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, apparatus, and device for dynamically modifying a PCH PCIE root port where an onboard VGA is located, and a readable storage medium. The current item may be determined at a PEI phase by reading a GPIO interface, and a target PCH PCIE root port used by the item is further determined; then configuration information is acquired, and a target onboard VGA is found and initialized; because a video bridge configuration file defined in an SDL file is saved in a structure of a temporary file when code is compiled, in the method, the value of a target member of the structure is modified as the port number of the target PCH PCIE root port at a DXE phase, so that a video bridge is switched to the target PCH PCIE root port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.