| Message ID | 20190417152842.71730-2-borntraeger@de.ibm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: s390: new guest facilities | expand |
On 17.04.19 17:28, Christian Borntraeger wrote: > If vector support is enabled, the vector enhancements facility 2 > might also be enabled. > We can directly forward this facility to the guest if available > and VX is requested by user space. > > Please note that user space can and will have the final decision > on the facility bits for a guests. > > Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> > Reviewed-by: Janosch Frank <frankja@linux.ibm.com> > Reviewed-by: Collin Walling <walling@linux.ibm.com> > --- > arch/s390/kvm/kvm-s390.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c > index 4638303ba6a8..03ddbe5e62bc 100644 > --- a/arch/s390/kvm/kvm-s390.c > +++ b/arch/s390/kvm/kvm-s390.c > @@ -657,6 +657,10 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) > set_kvm_facility(kvm->arch.model.fac_mask, 135); > set_kvm_facility(kvm->arch.model.fac_list, 135); > } > + if (test_facility(148)) { > + set_kvm_facility(kvm->arch.model.fac_mask, 148); > + set_kvm_facility(kvm->arch.model.fac_list, 148); > + } > r = 0; > } else > r = -EINVAL; > Reviewed-by: David Hildenbrand <david@redhat.com>
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 4638303ba6a8..03ddbe5e62bc 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -657,6 +657,10 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap) set_kvm_facility(kvm->arch.model.fac_mask, 135); set_kvm_facility(kvm->arch.model.fac_list, 135); } + if (test_facility(148)) { + set_kvm_facility(kvm->arch.model.fac_mask, 148); + set_kvm_facility(kvm->arch.model.fac_list, 148); + } r = 0; } else r = -EINVAL;