[PATCH 16/32] KVM: s390: expose the guest zPCI interpretation facility

From: Matthew Rosato
Date: Tue Dec 07 2021 - 15:59:39 EST


This facility will be used to enable interpretive execution of zPCI
instructions.

Signed-off-by: Matthew Rosato <mjrosato@xxxxxxxxxxxxx>
---
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 c8fe9b7c2395..09991d05c871 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2751,6 +2751,10 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
set_kvm_facility(kvm->arch.model.fac_mask, 147);
set_kvm_facility(kvm->arch.model.fac_list, 147);
}
+ if (sclp.has_zpci_interp && test_facility(69)) {
+ set_kvm_facility(kvm->arch.model.fac_mask, 69);
+ set_kvm_facility(kvm->arch.model.fac_list, 69);
+ }

if (css_general_characteristics.aiv && test_facility(65))
set_kvm_facility(kvm->arch.model.fac_mask, 65);
--
2.27.0