Intel Corporation

Di Tang

Vincent J Zimmer

Rahul Khanna

James W Edwards

Abdul M Bailey

Yu Meng Li

Yufu Li

Kevin Yufu Li

Yu Fu Li

A system comprises a plurality of processor cores. The processor cores may comprise one or more application processor (AP) cores and a boot strap processor (BSP) core. A basic input/output system (BIOS) comprises an I/O device module to call a stall function in response to an I/O operation, a power management module that couples to the I/O device and a timer module that couples to the power management module. The power management module is to adjust a timer period of the timer module based on a stall delay of the stall function. The power management module may hook the stall function and compare the stall delay with a predetermined threshold and set the timer period to the stall delay in response to determining that the stall delay is longer. The power management module may put the BSP in a sleep mode during the timer period to save power.

System and method for power management using a basic input output system

Methods and apparatuses for re-instantiating a firmware environment that includes one or more firmware functions available at pre-boot time when transitioning the computing device from a first, higher power consumption state to a second, lower power consumption state. The firmware environment determines whether a cryptographic signature on a firmware volume is verified; whether hardware resources of the computing device requested by a manifest of the firmware volume are available; and whether a firmware module of the firmware volume is compatible with installed firmware of the firmware environment. If so, the firmware environment reserves space in a memory to accommodate resources used by the firmware module, and executes the firmware module with the computing device in the second, lower power consumption state.

Method of provisioning firmware in an operating system (OS) absent services environment

A system, device, and method for facilitating wireless communications during a pre-boot phase of a computing device includes establishing a communications interface between a unified extensible firmware interface executed on the computing device and a wireless transceiver of the computing device during a pre-boot phase of the computing device. An OOB processor of the computing device processes data communications between the unified extensible firmware interface and the wireless communication circuit during the pre-boot phase by reformatting the data communications between wired and wireless communication standards.

System and method for facilitating wireless communication during a pre-boot phase of a computing device

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Shanghai, China

Di Tang