Hardware user's guide

Intel® Trusted Platform Module Hardware User’s Guide 7
Table 1. TPM Setup Utility – Security Configuration Screen Fields
Intel® Trusted Execution Technology (Intel® TXT)
Overview
Intel
®
Trusted Execution Technology (Intel
®
TXT) for safer computing, formerly code
named LaGrande Technology, is a versatile set of hardware extensions to Intel
®
processors and chipsets that enhance the platform with security capabilities such as
measured launch and protected execution. Intel
®
TXT provides hardware-based
mechanisms that help protect against software-based attacks and protects the
confidentiality and integrity of data stored or created on the system. It does this by
enabling an environment where applications can run within their own space, protected
from all other software on the system. These capabilities provide the protection
Setup Item Options Help Text Comments
TPM State • Enabled and
Activated
• Enabled and
Deactivated
• Disabled and
Activated
• Disabled and
Deactivated
— Information only.
• Shows the current TPM device
state.
• A disabled TPM device will not
execute commands that use TPM
functions and TPM security
operations will not be available.
• An enabled and deactivated TPM
is in the same state as a disabled
TPM except setting of TPM
ownership is allowed if not
present already.
• An enabled and activated TPM
executes all commands that use
TPM functions and TPM security
operations will be available.
TPM
Administrative
Control
• No Operation
• Turn On
• Turn Off
• Clear
Ownership
• [No Operation] - No
changes to current state.
• [Turn On] - Enables and
activates TPM.
• [Turn Off] - Disables and
deactivates TPM.
• [Clear Ownership] -
Removes the TPM
ownership authentication
and returns the TPM to a
factory default state.
Note: The BIOS setting
returns to [No
Operation] on every
boot cycle by default.
—