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Chapter 4: UEFI BIOS
CPU Configuration
The following information is displayed.
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Module Version
SMT Control
Use this feature to enable/disable simultaneous multithreading. After setting this feature to
Enabled, please reboot the system for the changes to take effect. The options are Disabled,
Enabled, and Auto.
Core Performance Boost
Use this feature to set the Core Performance Boost. The options are Disabled and Auto.
Global C-state Control
Use this feature to set IO based C-state generation and DF C-states. The options are Disabled,
Enabled, and Auto.
SEV-ES ASID Space Limit Control
Use this feature to set SEV-ES ASID space limit operation modes. The options are Auto
and Manual.
PPIN Opt-in
Set this feature to use the Protected Processor Inventory Number (PPIN), which is a unique
serial number for each processor. The options are Disabled, Enabled, and Auto.
SNP Memory (RMP Table) Coverage
Use this feature to set the entire system memory to be covered. The options are Disabled,
Enabled, Custom, and Auto.
Amount of Memory to Cover (Available when "SNP Memory (RMP Table) Coverage"
is set to Custom)
Use this feature to set the system memory to be covered (in Hex.). The default setting is 0.
SMEE
Use this feature to disable/enable the secure memory encryption. The options are Disabled,
Enabled, and Auto.
Enhanced REP MOVSB/STOSB (ERSM)
Disable this feature for analysis purposes as long as OS supports it. The options are Disabled,
Enabled, and Auto.
AVX512
Use this feature to disable/enable the support of Advanced Vector Extensions 512 (AVX 512).
The options are Disabled, Enabled, and Auto.
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