diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 7b092ee385..ff92b1d118 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -106,6 +106,8 @@ static int has_xsave;
 static int has_xcrs;
 static int has_pit_state2;
 
+static struct kvm_cpuid2 *cpuid_cache;
+
 int kvm_has_pit_state2(void)
 {
     return has_pit_state2;
@@ -199,9 +201,14 @@ static struct kvm_cpuid2 *get_supported_cpuid(KVMState *s)
 {
     struct kvm_cpuid2 *cpuid;
     int max = 1;
+
+    if (cpuid_cache != NULL) {
+        return cpuid_cache;
+    }
     while ((cpuid = try_get_cpuid(s, max)) == NULL) {
         max *= 2;
     }
+    cpuid_cache = cpuid;
     return cpuid;
 }
 
@@ -319,8 +326,6 @@ uint32_t kvm_arch_get_supported_cpuid(KVMState *s, uint32_t function,
         ret |= cpuid_1_edx & CPUID_EXT2_AMD_ALIASES;
     }
 
-    g_free(cpuid);
-
     /* fallback for older kernels */
     if ((function == KVM_CPUID_FEATURES) && !found) {
         ret = get_para_features(s);