[PATCH 3 of 3] KVM: PPC: allow ppc440gp to pass the compatibility check

[hollis_blanchard-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org]

Match only the first part of cur_cpu_spec->platform.

440GP (the first 440 processor) is identified by the string "ppc440gp", while
all later 440 processors use simply "ppc440".

Signed-off-by: Hollis Blanchard <hollis_blanchard-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>


---
 arch/powerpc/kvm/44x.c |  3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)


diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -43,7 +43,7 @@ int kvmppc_core_check_processor_compat(v
 {
 	int r;
 
-	if (strcmp(cur_cpu_spec->platform, "ppc440") == 0)
+	if (strncmp(cur_cpu_spec->platform, "ppc440", 6) == 0)
 		r = 0;
 	else
 		r = -ENOTSUPP;
@@ -72,6 +72,7 @@ int kvmppc_core_vcpu_setup(struct kvm_vc
 	/* Since the guest can directly access the timebase, it must know the
 	 * real timebase frequency. Accordingly, it must see the state of
 	 * CCR1[TCS]. */
+	/* XXX CCR1 doesn't exist on all 440 SoCs. */
 	vcpu->arch.ccr1 = mfspr(SPRN_CCR1);
 
 	for (i = 0; i < ARRAY_SIZE(vcpu_44x->shadow_refs); i++)