diff --git a/kvm-all.c b/kvm-all.c
index e6a7de4..fb44e2e 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -998,7 +998,9 @@ int kvm_cpu_exec(CPUState *env)
     }
     ret = EXCP_INTERRUPT;
 
+#ifdef KVM_CAP_SET_GUEST_DEBUG
 out:
+#endif /* KVM_CAP_SET_GUEST_DEBUG */
     env->exit_request = 0;
     cpu_single_env = NULL;
     return ret;
diff --git a/target-ppc/kvm.c b/target-ppc/kvm.c
index 04b94a3..4fa1be3 100644
--- a/target-ppc/kvm.c
+++ b/target-ppc/kvm.c
@@ -223,7 +223,7 @@ int kvmppc_set_interrupt(CPUState *env, int irq, int level)
 #define PPC_INPUT_INT PPC6xx_INPUT_INT
 #endif
 
-int kvm_arch_pre_run(CPUState *env, struct kvm_run *run)
+void kvm_arch_pre_run(CPUState *env, struct kvm_run *run)
 {
     int r;
     unsigned irq;
@@ -254,15 +254,15 @@ int kvm_arch_pre_run(CPUState *env, struct kvm_run *run)
     /* We don't know if there are more interrupts pending after this. However,
      * the guest will return to userspace in the course of handling this one
      * anyways, so we will get a chance to deliver the rest. */
-    return 0;
 }
 
 void kvm_arch_post_run(CPUState *env, struct kvm_run *run)
 {
 }
 
-void kvm_arch_process_irqchip_events(CPUState *env)
+int kvm_arch_process_irqchip_events(CPUState *env)
 {
+    return 0;
 }
 
 static int kvmppc_handle_halt(CPUState *env)