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, 4 insertions, 7 deletions

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index ffed96f817f7..37e9b3c52a38 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -16,11 +16,9 @@ if VIRTUALIZATION
 
 config KVM
         bool "Kernel-based Virtual Machine (KVM) support"
-        depends on 44x && EXPERIMENTAL
+        depends on EXPERIMENTAL
         select PREEMPT_NOTIFIERS
         select ANON_INODES
-        # We can only run on Book E hosts so far
-        select KVM_BOOKE
         ---help---
           Support hosting virtualized guest machines. You will also
           need to select one or more of the processor modules below.
@@ -30,12 +28,11 @@ config KVM
 
           If unsure, say N.
 
-config KVM_BOOKE
-        bool "KVM support for Book E PowerPC processors"
+config KVM_440
+        bool "KVM support for PowerPC 440 processors"
         depends on KVM && 44x
         ---help---
-          Provides host support for KVM on Book E PowerPC processors. Currently
-          this works on 440 processors only.
+          KVM can run unmodified 440 guest kernels on 440 host processors.
 
 config KVM_TRACE
         bool "KVM trace support"