Control right handover method and apparatus for power management, device, and storage medium
US12321212B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Mar 23, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present application relates to a control right handover method and apparatus for power management, a device, and a storage medium. The method includes: adding power management handover option hardware-controlled performance states (HWP) in a basic input output system (BIOS) power management interface; setting an option value corresponding to the power management handover option HWP as Native Mode; saving Native Mode to an intermediate struct; and modifying bits of target registers in a central processing unit (CPU) according to the intermediate struct, whereby a control right for power management is handed over from a BIOS to an operating system (OS), and the OS acquires the control right for power management.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.