Method and system for allowing code to be securely...

Details Method and system for allowing code to be securely... Method and system for allowing code to be securely...

2005-08-30

2005-08-30

Rimell, Sam (Department: 2164)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C713S100000, C713S152000, C380S277000

Reexamination Certificate

active

06938164

ABSTRACT:
A memory controller prevents CPUs and other I/O bus masters from accessing memory during a code (for example, trusted core) initialization process. The memory controller resets CPUs in the computer and allows a CPU to begin accessing memory at a particular location (identified to the CPU by the memory controller). Once an initialization process has been executed by that CPU, the code is operational and any other CPUs are allowed to access memory (after being reset), as are any other bus masters (subject to any controls imposed by the initiated code).

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