Method and apparatus for using a memory region to pass...

Details Method and apparatus for using a memory region to pass... Method and apparatus for using a memory region to pass...

2007-02-13

2007-02-13

Elamin, A. (Department: 2116)

Electrical computers and digital processing systems: support

Digital data processing system initialization or configuration

C713S002000, C713S100000, C713S300000, C711S153000, C711S170000, C711S173000

Reexamination Certificate

active

10236570

ABSTRACT:
An ACPI (Non-Volatile Sleeping) NVS memory region is allocated and defined so that a system BIOS can allocate a placeholder for the different parameters that are passed from the ACPI ASL code to the system management mode (SMM) handler for execution of real mode calls. The different parameters will be updated by runtime ACPI ASL code depending on what needs to be passed to the SMM handler. The SMM handler invokes appropriate calls based on retrieving of different parameters in the ACPI NVS memory region that have been passed from the ACPI ASL code.

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patent: 2003/0084381 (2003-05-01), Gulick
patent: 2003/0097587 (2003-05-01), Gulick

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