Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-12-05
2006-12-05
Bataille, Pierre (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C709S229000
Reexamination Certificate
active
07146477
ABSTRACT:
A system is configured to selectively block peripheral accesses to system memory. The system includes a secure execution mode (SEM)-capable processor configured to operate in a trusted execution mode. The system also includes a system memory including a plurality of addressable locations. The system further includes a memory controller that may determine a source of an access request to one or more of the plurality of locations of the system memory. The memory controller may further allow the access request to proceed in response to determining that the source of the access request is the SEM-capable processor.
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Christie David S.
Hughes William A.
McGrath Kevin J.
Strongin Geoffrey S.
Advanced Micro Devices , Inc.
Bataille Pierre
Curran Stephen J.
Kivlin B. NoëL
Meyertons Hood Kivlin Kowert & Goetzel P.C.
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