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>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index df733511d671..f5850d7d57a5 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -74,6 +74,9 @@ struct kvmppc_44x_tlbe {
 struct kvm_arch {
 };
 
+/* XXX Can't include mmu-44x.h because it redefines struct mm_context. */
+#define PPC44x_TLB_SIZE 64
+
 struct kvm_vcpu_arch {
 	/* Unmodified copy of the guest's TLB. */
 	struct kvmppc_44x_tlbe guest_tlb[PPC44x_TLB_SIZE];