CONFIG_ARCH_SPARSEMEM_ENABLE (not configurable)
configname: CONFIG_ARCH_SPARSEMEM_ENABLE
Linux Kernel Configuration for x86
└─>Processor type and features
└─>ARCH_SPARSEMEM_ENABLE
In linux kernel since version 2.6.13 (release Date: 2005-08-28)
depends
CONFIG_NUMA or CONFIG_X86_32_NON_STANDARD or CONFIG_X86_64 or CONFIG_EXPERIMENTALCONFIG_X86_32