Patent · US Active

Service processor (SP) initiated data transaction with bios utilizing interrupt

US9529750B2 · kind B2 · utility

1Cited by

1References

15Claims

0Family size

Assignee

American Megatrends, Inc. · US

Inventors

Sanjoy Maity · Snellville, US
Purandhar Nallagatla · Johns Creek, US
Harikrishna Doppalapudi · Norcross, US
Ramakoti Reddy Bhimanadhuni · Suwanee, US
Satheesh Thomas · Dunwoody, US
Joseprabu Inbaraj · Suwanee, US

Key dates

Filing date	Jul 14, 2014
Grant date	Dec 27, 2016
Priority date	—
Expiry date	May 15, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/4401
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Certain aspects direct to systems and methods to perform service processor (SP) initiated data transaction with a host computer utilizing interrupts. In certain embodiments, the system includes a SP, which includes a processor, a non-volatile memory and a communication interface. The SP generates a first system management interface (SMI) message, and sends the first SMI message to the host computer to initiate a data transaction. The OS, in response to the first SMI message, execute a SMI handler in a system management random access memory (SMRAM) area at the CPU to enter a system management mode (SMM). The SMI handler then sends the notification to the SP via the communication interface. In response to receiving the notification from the SMI handler, the SP starts performing the data transaction with the host computer.

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