KVM: ppc: Refactor powerpc.c to relocate 440-specific code

This introduces a set of core-provided hooks. For 440, some of these are
implemented by booke.c, with the rest in (the new) 44x.c.

Note that these hooks are link-time, not run-time. Since it is not possible to
build a single kernel for both e500 and 440 (for example), using function
pointers would only add overhead.

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 0ce8ed5..c5d2bfc 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -139,7 +139,7 @@
 	switch (get_op(inst)) {
 	case 3:                                                 /* trap */
 		printk("trap!\n");
-		kvmppc_queue_exception(vcpu, BOOKE_INTERRUPT_PROGRAM);
+		kvmppc_core_queue_program(vcpu);
 		advance = 0;
 		break;