KVM: PPC: Expose SYNC cap based on mmu notifiers

Semantically, the "SYNC" cap means that we have mmu notifiers available.
Express this in our #ifdef'ery around the feature, so that we can be sure
we don't miss out on ppc targets when they get their implementation.

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

1 files changed, 7 insertions, 1 deletions

diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index dbf56e173c25..45fe433316ea 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -264,10 +264,16 @@ int kvm_dev_ioctl_check_extension(long ext)
                 if (cpu_has_feature(CPU_FTR_ARCH_201))
                         r = 2;
                 break;
+#endif
         case KVM_CAP_SYNC_MMU:
+#ifdef CONFIG_KVM_BOOK3S_64_HV
                 r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
-                break;
+#elif defined(KVM_ARCH_WANT_MMU_NOTIFIER)
+                r = 1;
+#else
+                r = 0;
 #endif
+                break;
         case KVM_CAP_NR_VCPUS:
                 /*
                  * Recommending a number of CPUs is somewhat arbitrary; we