From d6af0b491b1f675e5e5a12c5587f804c698a6ba5 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Fri, 4 Mar 2016 11:55:56 +0100 Subject: [PATCH] KVM: s390: enable PFMFI only if guest has EDAT1 Only enable PFMF interpretation if the necessary facility (EDAT1) is available, otherwise the pfmf handler in priv.c will inject an exception Reviewed-by: Dominik Dingel Reviewed-by: Christian Borntraeger Signed-off-by: David Hildenbrand Signed-off-by: Christian Borntraeger --- 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 668c087513e5..13b3f5eb49be 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -1649,7 +1649,8 @@ 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; - vcpu->arch.sie_block->ecb2 = 8; + if (test_kvm_facility(vcpu->kvm, 8)) + vcpu->arch.sie_block->ecb2 |= 0x08; vcpu->arch.sie_block->eca = 0xC1002000U; if (sclp.has_siif) vcpu->arch.sie_block->eca |= 1; -- GitLab