CONFIG_HOST_VMSPLIT_1G is not available for thedefaultarchitecture x86.
Result is shown for architecture um
default or selected kernelversion does not have config value CONFIG_HOST_VMSPLIT_1G.
Result is shown for kernelversion 5.15.113

1G/3G user/kernel host split

configname: CONFIG_HOST_VMSPLIT_1G

Host memory split
└─>1G/3G user/kernel host split
In linux kernel since version 2.6.19 (release Date: 2006-11-29)