[I][PATCH 1/2] KVM: s390: allow facility 192 (vector-packed-decimal-enhancement facility 2)

frank.heimes at canonical.com frank.heimes at canonical.com
Mon Aug 16 11:09:20 UTC 2021


From: Christian Borntraeger <borntraeger at de.ibm.com>

BugLink: https://bugs.launchpad.net/bugs/1932174

pass through newer vector instructions if vector support is enabled.

Reviewed-by: Claudio Imbrenda <imbrenda at linux.ibm.com>
Reviewed-by: Janosch Frank <frankja at linux.ibm.com>
Acked-by: Cornelia Huck <cohuck at redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com>
(cherry picked from commit 1f703d2cf20464338c3d5279dddfb65ac79b8782)
Signed-off-by: Frank Heimes <frank.heimes at canonical.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 876fc1f7282a..f72f361d39dd 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -713,6 +713,10 @@ int kvm_vm_ioctl_enable_cap(struct kvm *kvm, struct kvm_enable_cap *cap)
 				set_kvm_facility(kvm->arch.model.fac_mask, 152);
 				set_kvm_facility(kvm->arch.model.fac_list, 152);
 			}
+			if (test_facility(192)) {
+				set_kvm_facility(kvm->arch.model.fac_mask, 192);
+				set_kvm_facility(kvm->arch.model.fac_list, 192);
+			}
 			r = 0;
 		} else
 			r = -EINVAL;
-- 
2.25.1




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