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Commit 78f92a82 authored by Randy Dunlap's avatar Randy Dunlap Committed by Adrian Bunk
Browse files

doc: make doc. for maxcpus= more visible 



Some people are confused about maxcpus=1 and maxcpus=0,
so put the documentation text from init/main.c into
Documentation/kernel-parameters.txt also.

Signed-off-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: default avatarAdrian Bunk <bunk@stusta.de>
parent 4b2d5c04

Documentation/kernel-parameters.txt

+8 −1
Original line number Diff line number Diff line
@@ -863,7 +863,14 @@ and is between 256 and 4096 characters. It is defined in the file 
			Format: <1-256>



	maxcpus=	[SMP] Maximum number of processors that	an SMP kernel

			should make use of

			should make use of.

			Using "nosmp" or "maxcpus=0" will disable SMP

			entirely (the MPS table probe still happens, though).

			A command-line option of "maxcpus=<NUM>", where <NUM>

			is an integer greater than 0, limits the maximum number

			of CPUs activated in SMP mode to <NUM>.

			Using "maxcpus=1" on an SMP kernel is the trivial

			case of an SMP kernel with only one CPU.



	max_addr=[KMG]	[KNL,BOOT,ia64] All physical memory greater than or

			equal to this physical address is ignored.