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KVM: s390: activate GISA for emulated interrupts 

If the AIV facility is available, a GISA will be used to manage emulated
adapter interrupts.

Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This commit is contained in:
Michael Mueller 2017-06-23 14:46:21 +02:00 committed by Christian Borntraeger
parent 4b35f65e67
commit f180bfdae0
1 changed files with 7 additions and 1 deletions
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8
arch/s390/kvm/interrupt.c
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@ -2842,7 +2842,13 @@ void kvm_s390_gisa_clear(struct kvm *kvm)
void kvm_s390_gisa_init(struct kvm *kvm)
{
/* not implemented yet */
if (!css_general_characteristics.aiv)
kvm->arch.gisa = NULL;
else {
kvm->arch.gisa = &kvm->arch.sie_page2->gisa;
VM_EVENT(kvm, 3, "gisa 0x%pK initialized", kvm->arch.gisa);
kvm_s390_gisa_clear(kvm);
}
}
void kvm_s390_gisa_destroy(struct kvm *kvm)