Method and apparatus for loading a trustable operating system
US7631196B2 · kind B2 · utility
5Cited by
198References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jul 13, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45587
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus is provided in which a trustable operating system is loaded into a region in memory. A start secure operation (SSO) triggers a join secure operation (JSO) to halt all but one central processing unit (CPU) in a multi-processor computer. The SSO causes the active CPU to load a component of an operating system into a specified region in memory, register the identity of the loaded operating system by recording a cryptographic hash of the contents of the specified region in memory, begin executing at a known entry point in the specified region and trigger the JSO to cause the halted CPUs to do the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.