diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 5f3f789..c440809 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -411,9 +411,10 @@ static void cpu_update_state(void *opaque, int running, RunState state)
     }
 }
 
-unsigned long kvm_arch_vcpu_id(CPUState *cpu)
+unsigned long kvm_arch_vcpu_id(CPUState *cs)
 {
-    return cpu->cpu_index;
+    X86CPU *cpu = X86_CPU(cs);
+    return cpu->env.cpuid_apic_id;
 }
 
 int kvm_arch_init_vcpu(CPUState *cs)