tree 26c18feae38a64a5247132dca8a328c49740b06e
parent 81523aac01a7f68af2576800c8623edfb6323017
author Jason Wang <jasowang@redhat.com> 1442299314 +0800
committer Paolo Bonzini <pbonzini@redhat.com> 1442329107 +0200

kvm: don't try to register to KVM_FAST_MMIO_BUS for non mmio eventfd

We only want zero length mmio eventfd to be registered on
KVM_FAST_MMIO_BUS. So check this explicitly when arg->len is zero to
make sure this.

Cc: stable@vger.kernel.org
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>