Method and system of managing virtualized physical memory in...

Details Method and system of managing virtualized physical memory in... Method and system of managing virtualized physical memory in...

2005-07-19

2005-07-19

Anderson, Matthew (Department: 2186)

Electrical computers and digital processing systems: memory

Addressing combined with specific memory configuration or...

For multiple memory modules

C711S004000, C711S100000, C711S114000, C711S200000, C711S202000, C711S209000

Reexamination Certificate

active

06920521

ABSTRACT:
A move engine and operating system transparently reconfigure physical memory to accomplish addition, subtraction, or replacement of a memory module. The operating system stores FROM and TO real addresses in unique fields in memory that are used to virtualize the physical address of the memory module being reconfigured and provide the reconfiguration in real-time through the use of hardware functionality and not software. Using the FROM and TO real addresses to select a source and a target, the move engine copies the contents of the memory module to be removed or reconfigured into the remaining or inserted memory module. Then, the real address associated with the reconfigured memory module is re-assigned to the memory module receiving the copied contents, thereby creating a virtualized physical mapping from the addressable real address space being utilized by the operating system into a virtual physical address space. During the process of moving the memory contents, the operating system stalls. Write memory requests addressed to the real address space currently associated with the sourcing memory module indicated by either the FROM or TO real address space. As will be appreciated, a memory module can be inserted, removed or replaced in physical memory without the operating system having to stop all memory operations in the memory to accomplish the physical memory change.

REFERENCES:
patent: 5404478 (1995-04-01), Arai et al.
patent: 5615352 (1997-03-01), Jacobson et al.
patent: 5819310 (1998-10-01), Vishlitzky et al.
patent: 5926836 (1999-07-01), Blumenau
patent: 6044445 (2000-03-01), Tsuda et al.
patent: 6141729 (2000-10-01), Ishida et al.
patent: 6223269 (2001-04-01), Blumenau
patent: 6243790 (2001-06-01), Yorimitsu
patent: 6269431 (2001-07-01), Dunham
patent: 6282610 (2001-08-01), Bergsten
patent: 6341341 (2002-01-01), Grummon et al.
patent: 6356991 (2002-03-01), Bauman et al.
patent: 6434681 (2002-08-01), Armangau
patent: 6442649 (2002-08-01), Anderson
patent: 6442650 (2002-08-01), Bachmat et al.
patent: 6457139 (2002-09-01), D'Errico et al.
patent: 6473847 (2002-10-01), Kamiya
patent: 6662289 (2003-12-01), Ang
patent: 6665787 (2003-12-01), Franaszek et al.

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