diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 49e5db3..924db0d 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -1936,6 +1936,12 @@ void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
         *ecx = 0;
         *edx = 0;
         break;
+    case 0x40000010:
+        *eax = env->tsc_khz;
+        *ebx = 1000000; /* apic_khz */
+        *ecx = 0;
+        *edx = 0;
+        break;
     case 0x80000000:
         *eax = env->cpuid_xlevel;
         *ebx = env->cpuid_vendor1;