Reducing power-on time by simulating operating system memory hot add

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United States of America Patent

PATENT NO 7987336
APP PUB NO 20090287900A1
SERIAL NO

12120383

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention generally provides a method for speeding up system boot time, by initializing a subset of memory during the system firmware test/initialization, and allowing the system to boot an operating system with this subset of installed memory. While the system is completing the operating system boot with the subset of installed memory, a remainder of the installed system memory is being initialized/tested. When the initialization the remainder of system memory is completed (and after the OS has booted), the SMI handler is invoked. The SMI handler then simulates a physical memory “Hot Add” event, and reports the event to the OS. This allows much of the memory initialization/test activity to occur in parallel with the firmware initialization/test and operating system startup processes.

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Patent Owner(s)

Patent OwnerAddress
INTERNATIONAL BUSINESS MACHINES CORPORATIONNEW ORCHARD ROAD ARMONK NY 10504

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kirscht, Joseph Allen Rochester, US 27 350
Kochar, Sumeet Apex, US 62 518
Kritt, Barry Alan Raleigh, US 43 497
Schwartz, William Bradley Apex, US 10 173

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