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Chapter 4: BIOS
CPU Configuration
CPU Configuration
SMT Control
Use this setting to specify Symmetric Multithreading. Options include Disabled and Auto.
Core Performance Boost
This setting is used to configure for Core Performance Boost. Options include Disabled and
Auto.
Global C-state Control
This setting is used to configure for Global C-state Control. Options include Disabled, Enabled
and Auto.
SEV-ES ASID Space Limit
The SEV VMs using ASIDs below the SEV-ES ASID Space Limit must enable the SEV-ES
feature. The valid values for this field are from 0x1 (1) to 0x10 (16). Default is 1.
Local APIC Mode
Use this setting to adjust local APIC mode. Options include Compatibility, xAPIC, x2APIC
and Auto.
PPIN Opt-in
The Protected Processor Identification Number (PPIN) is a unique serial number for each
processor. The options include Disabled, Enabled and Auto.
SNP Memory (RMP Table) Coverage
Select Enabled to set the entire system memory covered. The options include Disabled,
Enabled, Custom and Auto.
SMEE
This feature sets the option to enable or disable Secure Memory Encryption. The options are
Disabled, Enabled and Auto.
AVX512
The options include Disabled, Enabled, and Auto.
Monitor and MWAIT Disable
Select Enabled to set the opcodes become invalid. The options include Enabled, Disabled
and Auto.
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