The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 20, 2018

Filed:

Mar. 11, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Sreenivas Makineedi, Round Rock, TX (US);

Srinivasa Raghavan M. Parthasarathi, Round Rock, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/14 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 12/1441 (2013.01); G06F 3/0622 (2013.01); G06F 3/0637 (2013.01); G06F 3/0673 (2013.01);
Abstract

A method for privilege based memory pinning is provided. The method includes receiving a request to pin an amount of address space memory from a process executing on an operating system. The operating system includes a configurable mode of operation. In mandatory mode, the operating system executes the request to pin address space memory based on the role hierarchy-based privilege level of the requestor process. When the requested amount is greater than the operating system's amount of memory that can be used to pin memory, the operating system fails the request. However, when the operating can satisfy the request from processes having a lower privilege level relative to the requestor process, memory is unpinned from one or more of these processes.


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