[PATCH 18/32] KVM: s390: expose guest Adapter Event Notification Interpretation facility

Matthew Rosato
2021-12-07T20:59:50Z

This facility will be used to enable forwarding of PCI interrupts from
firmware directly to guests.

Signed-off-by: Matthew Rosato <mjrosato@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 d44ca313a1b7..a680f2a02b67 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2759,6 +2759,10 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
set_kvm_facility(kvm->arch.model.fac_mask, 70);
set_kvm_facility(kvm->arch.model.fac_list, 70);
}
+ if (sclp.has_aeni && test_facility(71)) {
+ set_kvm_facility(kvm->arch.model.fac_mask, 71);
+ set_kvm_facility(kvm->arch.model.fac_list, 71);
+ }

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