Hi Peter,
At 03/20/2018 08:37 PM, Peter Zijlstra wrote:
On Tue, Mar 20, 2018 at 07:04:28PM +0800, Dou Liyang wrote:
+ possible_cpus= [s390,x86_64] Use this to set hotpluggable cpus.
+ This option sets possible_cpus bits in cpu_possible_map.
+ Thus keeping the numbers of bits set constant even if
+ the machine gets rebooted.
That description, esp. the last sentence, doesn't make any kind of sense
to me. What?
Ah, sure enough, I can't be lazy. :-) I stole that from the commit
3b11ce7f542e ("x86: use possible_cpus=NUM to extend the possible cpus
allowed")
How about:
possible_cpus= [s390,x86_64] Set the number of possible CPUs which
are determined by the ACPI tables MADT or mptables by
default. possible_cpus=n : n >= 1 enforces the possible
number to be 'n'.
While nr_cpus is also be set: nr_cpus=m, choice the
minimum one for the number of possible CPUs.
Thank,
dou
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