Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Andrew V. Anderson0
Barry E. Huntley0
David M. Durham0
Gilbert Neiger0
Ido Ouziel0
Jonathan Edwards0
Michael Lemay0
Ravi L. Sahita0
...
Date of Patent
May 10, 2016
0Patent Application Number
143203340
Date Filed
June 30, 2014
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An apparatus and method for fine grain memory protection. For example, one embodiment of a method comprises: performing a first lookup operation using a virtual address to identify a physical address of a memory page, the memory page comprising a plurality of sub-pages; determining whether sub-page permissions are enabled for the memory page; if sub-page permissions are enabled, then performing a second lookup operation to determine permissions associated with one or more of the sub-pages of the memory page; and implementing the permissions associated with the one or more sub-pages.
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