x86/xen: Disable CPU0 hotplug for Xen PV

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Xen PV guests don't allow CPU0 hotplug, so disable it.

Signed-off-by: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: boris.ostrovsky@oracle.com
Cc: xen-devel@lists.xenproject.org
Link: http://lkml.kernel.org/r/20180912174122.24282-1-jgross@suse.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Juergen Gross 2018-09-12 19:41:22 +02:00 • committed by Ingo Molnar

parent 6a92b11169

commit 999696752d

1 changed files with 3 additions and 1 deletions

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arch/x86/kernel/topology.c

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