CONFIG_SYS_HAS_CPU_SB1 is not available for thedefaultarchitecture x86.
Result is shown for architecture mips

CONFIG_SYS_HAS_CPU_SB1 (not configurable)

configname: CONFIG_SYS_HAS_CPU_SB1

Linux Kernel Configuration
└─>CPU selection
└─>SYS_HAS_CPU_SB1
In linux kernel since version 2.6.15 (release Date: 2006-01-02)