Shadow page tables for address translation control

Details Shadow page tables for address translation control Shadow page tables for address translation control

2007-12-18

2007-12-18

Shah, Sanjiv (Department: 2185)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S207000, C711S208000, C711S162000

Reexamination Certificate

active

10697197

ABSTRACT:
In a computer system that employs virtual memory, multiple versions of a given page are stored: a directory version, a table version, and a data version. The data version contains the data that a software object believes to be stored in the page. The directory and table versions of the page contains versions of the page's contents that have been modified in some manner to comply with a restriction on the address translation map employed by the virtual address system. When a page is being used by the virtual address system as a directory or table, then the directory or table versions, respectively, of that page are used. When a page is the target of a read request, the data version of the page is used.

REFERENCES:
patent: 5892900 (1999-04-01), Ginter et al.
patent: 5910987 (1999-06-01), Ginter et al.
patent: 5915019 (1999-06-01), Ginter et al.
patent: 5917912 (1999-06-01), Ginter et al.
patent: 6233668 (2001-05-01), Harvey et al.
patent: 2003/0177435 (2003-09-01), Budd et al.
patent: 2003/0200402 (2003-10-01), Willman et al.
patent: 2003/0200412 (2003-10-01), Peinado et al.
patent: 2004/0003262 (2004-01-01), England et al.
Bugnion, E. et al., “Disco:Running Commodity Operating Systems on Scalable Multiprocessors”,Proceedings of the 16thSymposium on Operating Systems Principles(SOSP), Oct. 1997, 1-14.
Goldberg, R.P., “Survey of Virtual Machine Research”,Computer,Jun. 1974, 34-45.
Popek, G.J. et al., “Formal Requirements for Virtualizable Third Generation Architectures”,Communications of the ACM, Jul. 1974, 17(7), 412-421.
Smith, J.E., “An Overview of Virtual Machine Architectures”, Oct. 26, 2001, 1-20.
Waldspurger, C.A., “Memory Resource Management in VMware ESX Server”,Proceedings of the 5thSymposium on Operating Systems Design and Implementation, Dec. 9-11, 2002, 15 pages.
Coffing, C.L., “An x86 Protected Mode Virtual Machine Monitor for the MIT Exokernel”,Submitted to the Department of Electrical Engineering and Computer Science at the Massachusetts Institute of Technology, May 1999, 109 pages.

Affiliated with

Also associated with

Rating

Shadow page tables for address translation control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shadow page tables for address translation control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shadow page tables for address translation control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3854352