SERVICE PROCESSOR (SP) INTIATEED DATA TRANSACTION WITH BIOS UTILIZING POWER OFF COMMANDS

摘要

Certain aspects direct to systems and methods to perform service processor (SP) initiated data transaction with a host computer utilizing power off commands. 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 power off command for a data transaction purpose, and sends the first power off command to the host computer to initiate a data transaction. The OS, in response to the first power off command, calls an Advanced Configuration and Power Interface (ACPI) Machine Language (AML) code, which execute a system management interface (SMI) handler at the CPU to enter a system management mode (SMM). The SMI handler then sends a 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.

主权项

1. A system, comprising:
a service processor (SP), comprising a processor, a non-volatile memory and a communication interface, wherein the non-volatile memory stores computer executable code configured to, when executed at the processor,
generate a first power off command, and send the first power off command to a host computer;receive, via the communication interface, a notification from a system management interface (SMI) handler executed under a system management mode (SMM) at a central processing unit (CPU) of the host computer; andin response to the notification, perform data transaction between the SP and the host computer.