KVM: ppc: Add kvmppc_mmu_dtlb/itlb_miss for booke

When itlb or dtlb miss happens, E500 needs to update some mmu registers.
So that the auto-load mechanism can work on E500 when write a tlb entry.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index e67b7313ffc3..4a16f472cc18 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -232,6 +232,14 @@ int kvmppc_mmu_dtlb_index(struct kvm_vcpu *vcpu, gva_t eaddr)
         return kvmppc_44x_tlb_index(vcpu, eaddr, vcpu->arch.pid, as);
 }
 
+void kvmppc_mmu_itlb_miss(struct kvm_vcpu *vcpu)
+{
+}
+
+void kvmppc_mmu_dtlb_miss(struct kvm_vcpu *vcpu)
+{
+}
+
 static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x,
                                       unsigned int stlb_index)
 {
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index a73b3959e41c..933c406c7915 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -295,6 +295,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
                         kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_DTLB_MISS);
                         vcpu->arch.dear = vcpu->arch.fault_dear;
                         vcpu->arch.esr = vcpu->arch.fault_esr;
+                        kvmppc_mmu_dtlb_miss(vcpu);
                         kvmppc_account_exit(vcpu, DTLB_REAL_MISS_EXITS);
                         r = RESUME_GUEST;
                         break;
@@ -337,6 +338,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
                 if (gtlb_index < 0) {
                         /* The guest didn't have a mapping for it. */
                         kvmppc_booke_queue_irqprio(vcpu, BOOKE_IRQPRIO_ITLB_MISS);
+                        kvmppc_mmu_itlb_miss(vcpu);
                         kvmppc_account_exit(vcpu, ITLB_REAL_MISS_EXITS);
                         break;
                 }