Virtual-to-physical address conversion in a secure system
US7114053B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2003 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Sep 15, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In some embodiments, a storage medium comprises application software that performs one or more operations and that directly facilitates the conversion of a virtual memory address to a physical memory address. The application software comprises instructions that initialize an application data structure (e.g., an object or array) usable by the application software to facilitate the conversion of memory addresses and also comprises instructions that store pointers to the virtual memory addresses to be converted. In other embodiments, a system comprising a secure and non-secure memory subsystem is disclosed. Before execution of an application stored in the secure sub-system, a list of pointers to parameters contained in virtual memory is created. The virtual memory addresses referenced by the pointers in the list are converted to pointers to physical memory addresses before execution of the application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.