diff --git a/kvm-all.c b/kvm-all.c
index 255b6fad9c76b6d10b828a39837a10a774bc2102..935c4362e6217af34985c8d482de973fa2590b03 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -717,7 +717,7 @@ int kvm_init(int smp_cpus)
 
     s->broken_set_mem_region = 1;
 #ifdef KVM_CAP_JOIN_MEMORY_REGIONS_WORKS
-    ret = kvm_ioctl(s, KVM_CHECK_EXTENSION, KVM_CAP_JOIN_MEMORY_REGIONS_WORKS);
+    ret = kvm_check_extension(s, KVM_CAP_JOIN_MEMORY_REGIONS_WORKS);
     if (ret > 0) {
         s->broken_set_mem_region = 0;
     }
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 755f8c9089d5cd54f76fd34e81ab1370fa7267af..4004de76ddc2cc3bd6424387939e5a9c0b991ca4 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -187,7 +187,7 @@ static int kvm_get_mce_cap_supported(KVMState *s, uint64_t *mce_cap,
 {
     int r;
 
-    r = kvm_ioctl(s, KVM_CHECK_EXTENSION, KVM_CAP_MCE);
+    r = kvm_check_extension(s, KVM_CAP_MCE);
     if (r > 0) {
         *max_banks = r;
         return kvm_ioctl(s, KVM_X86_GET_MCE_CAP_SUPPORTED, mce_cap);
@@ -540,7 +540,7 @@ int kvm_arch_init(KVMState *s, int smp_cpus)
      * versions of KVM just assumed that it would be at the end of physical
      * memory but that doesn't work with more than 4GB of memory.  We simply
      * refuse to work with those older versions of KVM. */
-    ret = kvm_ioctl(s, KVM_CHECK_EXTENSION, KVM_CAP_SET_TSS_ADDR);
+    ret = kvm_check_extension(s, KVM_CAP_SET_TSS_ADDR);
     if (ret <= 0) {
         fprintf(stderr, "kvm does not support KVM_CAP_SET_TSS_ADDR\n");
         return ret;