diff options
| author | Guenther Hutzl <hutzl@linux.vnet.ibm.com> | 2016-06-03 14:37:17 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2017-01-30 11:17:30 +0100 |
| commit | 2f87d942be9d0f86e44fbcbd473264c26c7f1809 (patch) | |
| tree | 78fc3a6f5840aed1315cc5af7373a2cca4edafb5 /arch/s390/kvm | |
| parent | 53743aa7f14671dea6f3567ddca2f7d97454f3fe (diff) | |
KVM: s390: Introduce BCD Vector Instructions to the guest
We can directly forward the vector BCD instructions to the guest
if available and VX is requested by user space.
Please note that user space will have to take care of the final state
of the facility bit when migrating to older machines.
Signed-off-by: Guenther Hutzl <hutzl@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 1fd4b854efdc..69401b8d4521 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -505,6 +505,10 @@ static int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) } else if (MACHINE_HAS_VX) { set_kvm_facility(kvm->arch.model.fac_mask, 129); set_kvm_facility(kvm->arch.model.fac_list, 129); + if (test_facility(134)) { + set_kvm_facility(kvm->arch.model.fac_mask, 134); + set_kvm_facility(kvm->arch.model.fac_list, 134); + } if (test_facility(135)) { set_kvm_facility(kvm->arch.model.fac_mask, 135); set_kvm_facility(kvm->arch.model.fac_list, 135); |