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KVM: s390: enable PFMFI only if available

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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 <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
David Hildenbrand 2016-04-04 15:53:47 +02:00 committed by Christian Borntraeger
parent a0eb55e631
commit 873b425e4c
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kvm/kvm-s390.c
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@ -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)