CONFIG_MARCH_Z9_109 is not available for thedefaultarchitecture x86.
Result is shown for architecture s390
IBM System z9
configname: CONFIG_MARCH_Z9_109
Processor type
└─>IBM System z9
In linux kernel since version 2.6.19 (release Date: 2006-11-29)
Select this to enable optimizations for IBM System z9 (2094 and
2096 series). The kernel will be slightly faster but will not work
on older machines.
2096 series). The kernel will be slightly faster but will not work
on older machines.