CONFIG_SIBYTE_ENABLE_LDT_IF_PCI is not available for thedefaultarchitecture x86.
Result is shown for architecture mips
CONFIG_SIBYTE_ENABLE_LDT_IF_PCI (not configurable)
configname: CONFIG_SIBYTE_ENABLE_LDT_IF_PCI
Linux Kernel Configuration
└─>SIBYTE_ENABLE_LDT_IF_PCI