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KVM: s390: turn on tx even without ctx 

Constrained transactional execution is an addon of transactional execution.

Let's enable the assist also if only TX is enabled for the guest.

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 2016-04-22 16:26:49 +02:00 committed by Christian Borntraeger
parent bdab09f3d8
commit f597d24eee
1 changed files with 1 additions and 1 deletions
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2
arch/s390/kvm/kvm-s390.c
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@ -1842,7 +1842,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
vcpu->arch.sie_block->ecb |= 0x02; vcpu->arch.sie_block->ecb |= 0x02;
if (test_kvm_facility(vcpu->kvm, 9)) if (test_kvm_facility(vcpu->kvm, 9))
vcpu->arch.sie_block->ecb |= 0x04; vcpu->arch.sie_block->ecb |= 0x04;
if (test_kvm_facility(vcpu->kvm, 50) && test_kvm_facility(vcpu->kvm, 73)) if (test_kvm_facility(vcpu->kvm, 73))
vcpu->arch.sie_block->ecb |= 0x10; vcpu->arch.sie_block->ecb |= 0x10;
if (test_kvm_facility(vcpu->kvm, 8) && sclp.has_pfmfi) if (test_kvm_facility(vcpu->kvm, 8) && sclp.has_pfmfi)