Since kernel commit 3416c9daa6b13 ("powerpc/fadump: pass additional parameters when fadump is active"), fadump supports passing additional parameters to dump capture kernel. Leverage that support here to pass additional parameters to dump capture kernel.
Also, update fadump-howto.txt to make clear on the options that are not relevant for fadump in /etc/sysconfig/kdump
The default bootargs to append for fadump capture kernel boot are chosen with the intent to optimize resources and reduce memory footprint in dump capture environment.
Since kernel commit 3416c9daa6b13 ("powerpc/fadump: pass additional parameters when fadump is active"), fadump supports passing additional parameters to dump capture kernel. Leverage that support here to pass additional parameters to dump capture kernel.
Also, update fadump-howto.txt to make clear on the options that are not relevant for fadump in /etc/sysconfig/kdump
The default bootargs to append for fadump capture kernel boot are chosen with the intent to optimize resources and reduce memory footprint in dump capture environment.