Protection of user-level applications based on page table information
US7917724B2 · kind B2 · utility
5Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Aug 31, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the present invention includes a virtual machine monitor (VMM) to access a protection indicator of a page table entry (PTE) of a page of a set of memory buffers and determine a state of the protection indicator, and if the protection indicator indicates that the page is a user-level page and if certain information of an agent that seeks to use the page matches that in a protected memory address array, a page table base register (PTBR) is updated to a protected page table (PPT) base address. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.