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

CONFIG_CPU_SUPPORTS_ADDRWINCFG (not configurable)

configname: CONFIG_CPU_SUPPORTS_ADDRWINCFG

Linux/MIPS Kernel Configuration
└─>CPU_SUPPORTS_ADDRWINCFG
In linux kernel since version 2.6.33 (release Date: 2010-02-24)