kvm/ppc/mpic: add KVM_CAP_IRQ_MPIC

Enabling this capability connects the vcpu to the designated in-kernel
MPIC.  Using explicit connections between vcpus and irqchips allows
for flexibility, but the main benefit at the moment is that it
simplifies the code -- KVM doesn't need vm-global state to remember
which MPIC object is associated with this vm, and it doesn't need to
care about ordering between irqchip creation and vcpu creation.

Signed-off-by: Scott Wood <scottwood@freescale.com>
[agraf: add stub functions for kvmppc_mpic_{dis,}connect_vcpu]
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 4da11ed48c59..1020119226db 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -430,6 +430,10 @@ static int kvmppc_booke_irqprio_deliver(struct kvm_vcpu *vcpu,
                 if (update_epr == true) {
                         if (vcpu->arch.epr_flags & KVMPPC_EPR_USER)
                                 kvm_make_request(KVM_REQ_EPR_EXIT, vcpu);
+                        else if (vcpu->arch.epr_flags & KVMPPC_EPR_KERNEL) {
+                                BUG_ON(vcpu->arch.irq_type != KVMPPC_IRQ_MPIC);
+                                kvmppc_mpic_set_epr(vcpu);
+                        }
                 }
 
                 new_msr &= msr_mask;