Supermicro C9Z490-PG - Page 95

Chapter 4: UEFI BIOS
95
*If this feature of SGX is set to Enabled, the following features will become available
for conguration:
Select Owner EPOCH Input Type
There are three Owner EPOCH modes (each EPOCH is 64 bit). The options are No Change
in Owner EPOCHs, Change to New Random Owner EPOCH, and Manual User Dened
Owner EPOCHs.
*If this feature of Select Owner EPOCH Input Type is set to Manual User Dened
Owner EPOCHs, the following features will become available for conguration:
Software Guard Extensions Epoch 0
Enter a numeric value for this feature. The default is 0.
Software Guard Extensions Epoch 1
Enter a numeric value for this feature. The default is 0.
PRMRR Size
The BIOS must reserve a contiguous region of Processor Reserved Memory (PRM) in the
Processor Reserved Memory Range Register (PRMRR). The options are 32MB, 64MB,
and 128MB.
*If this feature of SGX is set to Software Controlled, the following feature will become
available for conguration:
Select Owner EPOCH Input Type
There are three Owner EPOCH modes (each EPOCH is 64 bit). The options are No Change
in Owner EPOCHs, Change to New Random Owner EPOCH, and Manual User Dened
Owner EPOCHs.
*If this feature of Select Owner EPOCH Input Type is set to Manual User Dened
Owner EPOCHs, the following features will become available for conguration:
Software Guard Extensions Epoch 0
Enter a numeric value for this feature. The default is 0.
Software Guard Extensions Epoch 1
Enter a numeric value for this feature. The default is 0.