21.
    发明专利
    未知

    公开(公告)号:DE102005034675A1

    公开(公告)日:2006-03-23

    申请号:DE102005034675

    申请日:2005-07-25

    Applicant: INTEL CORP

    Abstract: A processor includes a feature control unit to enable or disable one or more processor features individually in response to a user selectable setting. The feature control unit is adapted to disable the processor feature(s) if the user setting has not been updated in accordance with an input regardless of the value of the user setting prior to the update and to enable or disable the processor feature(s) in accordance with the updated user setting after it has been updated. The feature control unit may also include a lock unit to prevent changes to the updated user setting and a software feature selection unit to enable or disable processor features in response to a software feature selection setting and, optionally, only enable or disable processor features whose corresponding updated user setting is user enabled. The feature control unit may also include mechanisms to detect illegal feature selection conditions.

    Resetting a register on receipt of a locality confirming message

    公开(公告)号:GB2412465A

    公开(公告)日:2005-09-28

    申请号:GB0513435

    申请日:2003-03-20

    Applicant: INTEL CORP

    Abstract: A method and apparatus for resetting and modifying special registers in a security token is described. In one embodiment, a register may be reset when a reset flag is true when a special transmission on a bus demonstrates the mutual locality of the associated processor and chipset. A modify flag may also be used to indicate whether the register contents may be modified. Modifications may also be dependent upon demonstration of mutual locality. A locality confirming message may be sent by security bus logic in response to receiving a special bus message from a processor.

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