Programmatically pre-selecting specific physical memory blocks to allocate to an executing application
US7000087B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2001 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Oct 25, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for allocating pre-selected physical memory locations to an application executing on a data processing system. Memory allocation subroutines, interacting with the programming interfaces of the operating system (OS), allocates and looks down blocks of memory. The memory allocation subroutines then de-allocates the memory blocks based on whether or not the memory blocks fall within the pre-selected range of physical memory locations. The physical memory locations of the blocks locked down are discovered using the driver. The driver takes the virtual address of the specified memory locations and returns with a corresponding physical address. The memory allocation subroutines provide functions that allow the program developer to specify the number of physical pages to allocate and a range of physical addresses and comprises algorithm(s) that allocates the physical memory within the selected range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.