Patent · US Active

System and method for BIOS and controller communication

US8918652B2 · kind B2 · utility

2Cited by

7References

17Claims

0Family size

Assignee

Dell Products L.P. · US

Inventors

Alok Pant · Austin, US
James Les Walker · Cedar Park, US
Loren Fredlund · Austin, US

Key dates

Filing date	Oct 31, 2012
Grant date	Dec 23, 2014
Priority date	—
Expiry date	Oct 31, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG06F21/606
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A system and method for BIOS and controller communication is provided herein. The system may include an information handling system that includes a central processing unit coupled to a memory. The memory may contain a basic input/output system (BIOS). The information handling systems may also include a controller coupled to a nonvolatile memory and a register coupled to the central processing unit and the controller. The controller may be operable to store a key in the nonvolatile memory; write the key to the register in response to a signal from the BIOS; receive a command from the BIOS; verify the command is from the BIOS using the key; and execute the command if the command is from the BIOS.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.