[PATCH 17/32] KVM: s390: expose the guest Adapter Interruption Source ID facility

Matthew Rosato
2021-12-07T20:59:41Z

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 09991d05c871..d44ca313a1b7 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2755,6 +2755,10 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
set_kvm_facility(kvm->arch.model.fac_mask, 69);
set_kvm_facility(kvm->arch.model.fac_list, 69);
}
+ if (sclp.has_aisii && test_facility(70)) {
+ set_kvm_facility(kvm->arch.model.fac_mask, 70);
+ set_kvm_facility(kvm->arch.model.fac_list, 70);
+ }

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