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Commit 09a400e7 authored by David Hildenbrand's avatar David Hildenbrand Committed by Christian Borntraeger
Browse files

KVM: s390: enable ibs only if available 



Let's enable interlock-and-broadcast suppression only if the facility is
actually available.

Reviewed-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: default avatarDavid Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: default avatarChristian Borntraeger <borntraeger@de.ibm.com>
parent 9c375490

arch/s390/kvm/kvm-s390.c

+2 −0
Original line number Diff line number Diff line
@@ -2789,6 +2789,8 @@ static void __disable_ibs_on_all_vcpus(struct kvm *kvm) 


static void __enable_ibs_on_vcpu(struct kvm_vcpu *vcpu)

{

	if (!sclp.has_ibs)

		return;

	kvm_check_request(KVM_REQ_DISABLE_IBS, vcpu);

	kvm_s390_sync_request(KVM_REQ_ENABLE_IBS, vcpu);

}