TYAN S5556, Manual

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Intel Trusted Execution Technology
Enables utilization of additional hardware capabilities provided by Intel® Trusted
Execution Technology. Changes require a full power cycle to take effect.
Disabled / Enabled
NOTE: Alias Check Request and OPR Memory Size (MB) will be read only if Intel
Trusted Execution Technology is set to [Disabled].
Alias Check Request
Enables Txt Alias Checking capability changes require full Txt capability before it
will take effect. It is a one time only change, next reboot will be reset.
Disabled / Enabled
OPR Memory Size (MB)
Reserve OPR memory size (0-255) MB.
Software Guard Extensions (SGX)
Enable/Disable Software Guard Extensions (SGX).
Disabled / Enabled / Software Controlled
Select Owner EPOCH input type
There are three Owner EPOCH modes (Each EPOCH is 64bit): no change in owner
epoch, change to new random owner epoch and manually entered by user. After
generating new epoch via ‘Change to New Random Owner EPOCHs’, the selection
reverts back to ‘No Change in Owner Epochs’, this is to ensure Epoch stays same.
No Change in Owner EPOCHs / Change to New Random Owner
EPOCHs / Manual User Defined Owner EPOCHs
SGX Launch Control Policy
Software Guard Extensions (SGX) Launch Control Policy. Options are:
Intel Locked – Select Intel’s Launch Enclave.
Unlocked – Enable OS/VMM configuration of Launch Enclave.
Locked – Allow owner to configure Launch Enclave.
Unlocked / Intel Locked / Locked