From 873b425e4c2fd0ba6617d67a45fbf119b65575b4 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Mon, 4 Apr 2016 15:53:47 +0200 Subject: [PATCH] KVM: s390: enable PFMFI only if available Let's enable interpretation of PFMFI only if the facility is actually available. Emulation code still works in case the guest is offered EDAT-1. Reviewed-by: Christian Borntraeger Signed-off-by: David Hildenbrand Signed-off-by: Christian Borntraeger --- arch/s390/kvm/kvm-s390.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 1a239a6748fe..d987eb8af059 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1843,7 +1843,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) if (test_kvm_facility(vcpu->kvm, 50) && test_kvm_facility(vcpu->kvm, 73)) vcpu->arch.sie_block->ecb |= 0x10; - if (test_kvm_facility(vcpu->kvm, 8)) + if (test_kvm_facility(vcpu->kvm, 8) && sclp.has_pfmfi) vcpu->arch.sie_block->ecb2 |= 0x08; vcpu->arch.sie_block->eca = 0x1002000U; if (sclp.has_cei) -- GitLab