From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Fri, 28 Dec 2018 09:45:58 +0100
Subject: KVM: s390: add vector BCD enhancements facility to cpumodel
Git-commit: d5cb6ab1e3d4d7e0648a167f6290e89f6e86964e
Patch-mainline: v5.2-rc1
References: jsc#SLE-6240 FATE#327380

If vector support is enabled, the vector BCD enhancements facility
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>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 arch/s390/kvm/kvm-s390.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -624,6 +624,10 @@ static int kvm_vm_ioctl_enable_cap(struc
 				set_kvm_facility(kvm->arch.model.fac_mask, 148);
 				set_kvm_facility(kvm->arch.model.fac_list, 148);
 			}
+			if (test_facility(152)) {
+				set_kvm_facility(kvm->arch.model.fac_mask, 152);
+				set_kvm_facility(kvm->arch.model.fac_list, 152);
+			}
 			r = 0;
 		} else
 			r = -EINVAL;