x86/xen: Disable CPU0 hotplug for Xen PV
authorJuergen Gross <jgross@suse.com>
Wed, 12 Sep 2018 17:41:22 +0000 (19:41 +0200)
committerIngo Molnar <mingo@kernel.org>
Wed, 12 Sep 2018 19:15:02 +0000 (21:15 +0200)
commit999696752db1099aba595aac4f8d881f8c7cf4e6
tree748a22c2c723e2a660ac2543d3fae56e634ef016
parent6a92b11169a65b3f8cc512c75a252cbd0d096ba0
x86/xen: Disable CPU0 hotplug for Xen PV

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>
arch/x86/kernel/topology.c