Use WARN_ON_ONCE for missing X86_FEATURE_NRIPS

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commit d2922422c4 upstream.

The cpu feature flags are not ever going to change, so warning
everytime can cause a lot of kernel log spam
(in our case more than 10GB/hour).

The warning seems to only occur when nested virtualization is
enabled, so it's probably triggered by a KVM bug.  This is a
sensible and safe change anyway, and the KVM bug fix might not
be suitable for stable releases anyway.

Signed-off-by: Dirk Mueller <dmueller@suse.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dirk Müller 2015-10-01 13:43:42 +02:00 • committed by Greg Kroah-Hartman

parent 3f2a8445b8

commit d6a4aed83c

1 changed files with 1 additions and 1 deletions

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arch/x86/kvm/svm.c

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