KVM: PPC: allow ppc440gp to pass the compatibility check

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@mentor.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index e7b1f3fca5dc4bb615e33a8e9a860808b263acf4..74d0e742114306af2db5400af6c3ec29fe6a8c6d 100644 (file)
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -43,7 +43,7 @@ int kvmppc_core_check_processor_compat(void)
 {
        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_vcpu *vcpu)
        /* 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++)