Access control
US10324858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2017 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Jun 12, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/1668
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Access control circuitry comprises: a detector to detect a memory address translation between a virtual memory address in a virtual memory address space and a physical memory address in a physical memory address space, provided in response to a translation request by further circuitry; an address translation memory, to store data representing a set of physical memory addresses previously provided to the further circuitry in response to translation requests by the further circuitry; an interface to receive a physical memory address from the further circuitry for a memory access by the further circuitry; a comparator to compare a physical memory address received from the further circuitry with the set of physical addresses stored by the address translation memory, and to permit access, by the further circuitry, to a physical address included in the set of one or more physical memory addresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.