KVM: ppc: Add emulation of E500 register mmucsr0

Latest kernel flushes TLB via mmucsr0.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/powerpc/kvm/e500_tlb.h b/arch/powerpc/kvm/e500_tlb.h
index ab49e93..4d5cc0f 100644
--- a/arch/powerpc/kvm/e500_tlb.h
+++ b/arch/powerpc/kvm/e500_tlb.h
@@ -44,6 +44,7 @@
 	   | E500_TLB_USER_PERM_MASK | E500_TLB_SUPER_PERM_MASK)
 
 extern void kvmppc_dump_tlbs(struct kvm_vcpu *);
+extern int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *, ulong);
 extern int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *);
 extern int kvmppc_e500_emul_tlbre(struct kvm_vcpu *);
 extern int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *, int, int);