[GIT PULL 8/9] KVM: s390: enable STFLE interpretation only if enabled for the guest

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From: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx>

Not setting the facility list designation disables STFLE interpretation,
this is what we want if the guest was told to not have it.

Signed-off-by: David Hildenbrand <dahi@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
 arch/s390/kvm/kvm-s390.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index b54daed..b6a0654 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1639,7 +1639,8 @@ static void kvm_s390_vcpu_setup_model(struct kvm_vcpu *vcpu)
 
 	vcpu->arch.cpu_id = model->cpu_id;
 	vcpu->arch.sie_block->ibc = model->ibc;
-	vcpu->arch.sie_block->fac = (int) (long) model->fac->list;
+	if (test_kvm_facility(vcpu->kvm, 7))
+		vcpu->arch.sie_block->fac = (int) (long) model->fac->list;
 }
 
 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
-- 
2.5.0

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