diff --git a/hmp.c b/hmp.c
index aba728f0de369f710bd2cb2e86c39de8a204e931..72a52566761ec08f6ee37da93e563386ccfea98c 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1385,7 +1385,7 @@ void hmp_migrate_set_parameter(Monitor *mon, const QDict *qdict)
                 break;
             case MIGRATION_PARAMETER_MAX_BANDWIDTH:
                 p.has_max_bandwidth = true;
-                valuebw = qemu_strtosz(valuestr, &endp);
+                valuebw = qemu_strtosz_MiB(valuestr, &endp);
                 if (valuebw < 0 || (size_t)valuebw != valuebw
                     || *endp != '\0') {
                     error_setg(&err, "Invalid size %s", valuestr);
diff --git a/hw/misc/ivshmem.c b/hw/misc/ivshmem.c
index bf57e635d6b23d6364b25ebe0989d1e28c1585a2..b3d9ed99ddb8485161f18453d125ee8f18a66de4 100644
--- a/hw/misc/ivshmem.c
+++ b/hw/misc/ivshmem.c
@@ -1268,7 +1268,7 @@ static void ivshmem_realize(PCIDevice *dev, Error **errp)
         s->legacy_size = 4 << 20; /* 4 MB default */
     } else {
         char *end;
-        int64_t size = qemu_strtosz(s->sizearg, &end);
+        int64_t size = qemu_strtosz_MiB(s->sizearg, &end);
         if (size < 0 || (size_t)size != size || *end != '\0'
             || !is_power_of_2(size)) {
             error_setg(errp, "Invalid size %s", s->sizearg);
diff --git a/include/qemu/cutils.h b/include/qemu/cutils.h
index 81613d01eeaa885839a3ef200c7b1299bbb59137..a08b1b03af3b3b58e2f187ea44550f9ec2d6991b 100644
--- a/include/qemu/cutils.h
+++ b/include/qemu/cutils.h
@@ -153,9 +153,9 @@ int parse_uint_full(const char *s, unsigned long long *value, int base);
 #define QEMU_STRTOSZ_DEFSUFFIX_MB 'M'
 #define QEMU_STRTOSZ_DEFSUFFIX_KB 'K'
 #define QEMU_STRTOSZ_DEFSUFFIX_B 'B'
-int64_t qemu_strtosz(const char *nptr, char **end);
 int64_t qemu_strtosz_suffix(const char *nptr, char **end,
                             const char default_suffix);
+int64_t qemu_strtosz_MiB(const char *nptr, char **end);
 int64_t qemu_strtosz_metric(const char *nptr, char **end);
 
 #define K_BYTE     (1ULL << 10)
diff --git a/monitor.c b/monitor.c
index 5953fc984f29a97b3540cb2696a604ec5ecb20b2..c2c1e424f2329cf0bf59352633337967df6892cd 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2811,7 +2811,7 @@ static QDict *monitor_parse_arguments(Monitor *mon,
                         break;
                     }
                 }
-                val = qemu_strtosz(p, &end);
+                val = qemu_strtosz_MiB(p, &end);
                 if (val < 0) {
                     monitor_printf(mon, "invalid size\n");
                     goto fail;
diff --git a/tests/test-cutils.c b/tests/test-cutils.c
index e1d40548c02be0dfeb43817fbe4907d65e5daa95..9bbfb8f8e29d9bf72c8141fd6253fae3e6c5bf1b 100644
--- a/tests/test-cutils.c
+++ b/tests/test-cutils.c
@@ -1376,16 +1376,16 @@ static void test_qemu_strtosz_simple(void)
     int64_t res;
 
     str = "0";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, 0);
     g_assert(endptr == str + 1);
 
     str = "12345M";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, 12345 * M_BYTE);
     g_assert(endptr == str + 6);
 
-    res = qemu_strtosz(str, NULL);
+    res = qemu_strtosz_MiB(str, NULL);
     g_assert_cmpint(res, ==, 12345 * M_BYTE);
 
     /* Note: precision is 53 bits since we're parsing with strtod() */
@@ -1433,35 +1433,35 @@ static void test_qemu_strtosz_units(void)
     int64_t res;
 
     /* default is M */
-    res = qemu_strtosz(none, &endptr);
+    res = qemu_strtosz_MiB(none, &endptr);
     g_assert_cmpint(res, ==, M_BYTE);
     g_assert(endptr == none + 1);
 
-    res = qemu_strtosz(b, &endptr);
+    res = qemu_strtosz_MiB(b, &endptr);
     g_assert_cmpint(res, ==, 1);
     g_assert(endptr == b + 2);
 
-    res = qemu_strtosz(k, &endptr);
+    res = qemu_strtosz_MiB(k, &endptr);
     g_assert_cmpint(res, ==, K_BYTE);
     g_assert(endptr == k + 2);
 
-    res = qemu_strtosz(m, &endptr);
+    res = qemu_strtosz_MiB(m, &endptr);
     g_assert_cmpint(res, ==, M_BYTE);
     g_assert(endptr == m + 2);
 
-    res = qemu_strtosz(g, &endptr);
+    res = qemu_strtosz_MiB(g, &endptr);
     g_assert_cmpint(res, ==, G_BYTE);
     g_assert(endptr == g + 2);
 
-    res = qemu_strtosz(t, &endptr);
+    res = qemu_strtosz_MiB(t, &endptr);
     g_assert_cmpint(res, ==, T_BYTE);
     g_assert(endptr == t + 2);
 
-    res = qemu_strtosz(p, &endptr);
+    res = qemu_strtosz_MiB(p, &endptr);
     g_assert_cmpint(res, ==, P_BYTE);
     g_assert(endptr == p + 2);
 
-    res = qemu_strtosz(e, &endptr);
+    res = qemu_strtosz_MiB(e, &endptr);
     g_assert_cmpint(res, ==, E_BYTE);
     g_assert(endptr == e + 2);
 }
@@ -1472,7 +1472,7 @@ static void test_qemu_strtosz_float(void)
     char *endptr = NULL;
     int64_t res;
 
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, 12.345 * M_BYTE);
     g_assert(endptr == str + 7);
 }
@@ -1484,17 +1484,17 @@ static void test_qemu_strtosz_invalid(void)
     int64_t res;
 
     str = "";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, -EINVAL);
     g_assert(endptr == str);
 
     str = " \t ";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, -EINVAL);
     g_assert(endptr == str);
 
     str = "crap";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, -EINVAL);
     g_assert(endptr == str);
 }
@@ -1506,12 +1506,12 @@ static void test_qemu_strtosz_trailing(void)
     int64_t res;
 
     str = "123xxx";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, 123 * M_BYTE);
     g_assert(endptr == str + 3);
 
     str = "1kiB";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, 1024);
     g_assert(endptr == str + 2);
 }
@@ -1523,7 +1523,7 @@ static void test_qemu_strtosz_erange(void)
     int64_t res;
 
     str = "-1";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, -ERANGE);
     g_assert(endptr == str + 2);
 
@@ -1543,7 +1543,7 @@ static void test_qemu_strtosz_erange(void)
     g_assert(endptr == str + 19);
 
     str = "10E";
-    res = qemu_strtosz(str, &endptr);
+    res = qemu_strtosz_MiB(str, &endptr);
     g_assert_cmpint(res, ==, -ERANGE);
     g_assert(endptr == str + 3);
 }
diff --git a/util/cutils.c b/util/cutils.c
index b46e254f8333bf0e3fc765a47b41f6416cf4492d..9693adde1417dbff7a8a00fa3dac93039d0b6073 100644
--- a/util/cutils.c
+++ b/util/cutils.c
@@ -254,7 +254,7 @@ int64_t qemu_strtosz_suffix(const char *nptr, char **end,
     return do_strtosz(nptr, end, default_suffix, 1024);
 }
 
-int64_t qemu_strtosz(const char *nptr, char **end)
+int64_t qemu_strtosz_MiB(const char *nptr, char **end)
 {
     return qemu_strtosz_suffix(nptr, end, QEMU_STRTOSZ_DEFSUFFIX_MB);
 }