Method and apparatus for fine grain memory protection
US9335943B2 · kind B2 · utility
19Cited by
0References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2014 |
| Grant date | May 10, 2016 |
| Priority date | — |
| Expiry date | Sep 9, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/657
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.