KVM: PPC: Tell guest about pending interrupts

[~andy/linux] / arch / powerpc / kvm / book3s.c

diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index d6227ff0ceae7e8e8a75dbcee7d636ed6c8260f4..06229fec5c9f901111fcb9ea54daf708fe8e313e 100644 (file)
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -337,6 +337,7 @@ int kvmppc_book3s_irqprio_deliver(struct kvm_vcpu *vcpu, unsigned int priority)
 void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu)
 {
        unsigned long *pending = &vcpu->arch.pending_exceptions;
+       unsigned long old_pending = vcpu->arch.pending_exceptions;
        unsigned int priority;
 
 #ifdef EXIT_DEBUG
@@ -356,6 +357,12 @@ void kvmppc_core_deliver_interrupts(struct kvm_vcpu *vcpu)
                                         BITS_PER_BYTE * sizeof(*pending),
                                         priority + 1);
        }
+
+       /* Tell the guest about our interrupt status */
+       if (*pending)
+               vcpu->arch.shared->int_pending = 1;
+       else if (old_pending)
+               vcpu->arch.shared->int_pending = 0;
 }
 
 void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)