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KVM: disable halt_poll_ns as default for s390x

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We observed some performance degradation on s390x with dynamic
halt polling. Until we can provide a proper fix, let's enable
halt_poll_ns as default only for supported architectures.

Architectures are now free to set their own halt_poll_ns
default value.

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
David Hildenbrand 2015-09-18 12:34:53 +02:00 • committed by Paolo Bonzini
commit 920552b213
7 changed files with 8 additions and 2 deletions
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