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Chapter 4: UEFI BIOS
CPU Configuration
SMT Control
Use this setting to specify Simultaneous Multithreading. The options are Disabled, Enabled,
and Auto.
Core Performance Boost
This setting is used to configure for Core Performance Boost. The options include Disabled
and Auto.
Global C-state Control
This setting is used to configure for Global C-state Control. The options include Disabled,
Enabled, and Auto.
SEV-ES ASID Space Limit
The default value is 1.
Local APIC Mode
The options include Compatibility, xAPIC, x2APIC, and Auto.
PPIN Opt-in
The options include Disabled, Enabled, and Auto.
SNP Memory (RMP Table) Coverage
The options include Disabled, Enabled, Custom, and Auto.
SMEE
The options include Disabled, Enabled, and Auto.
AVX512
This setting is used to enable or disable AVX512. The options include Disabled, Enabled,
and Auto.
Monitor and MWAIT Disable
When this setting is set Enabled, the MONITOR, MWAIT, MONITORX, AND WAITX opcodes
become invalid. The options include Enabled, Disabled, and Auto.
L1 Stream HW Prefetcher
This setting is used to enable or disable the L1 Stream Hardware Prefetcher. The options
are Disabled, Enabled, and Auto.
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