diff --git a/tests/qemu-iotests/087 b/tests/qemu-iotests/087
index edd43f1..d8e0e38 100755
--- a/tests/qemu-iotests/087
+++ b/tests/qemu-iotests/087
@@ -143,9 +143,7 @@
   "arguments": {
       "qom-type": "secret",
       "id": "sec0",
-      "props": {
-          "data": "123456"
-      }
+      "data": "123456"
   }
 }
 { "execute": "blockdev-add",
@@ -176,9 +174,7 @@
   "arguments": {
       "qom-type": "secret",
       "id": "sec0",
-      "props": {
-          "data": "123456"
-      }
+      "data": "123456"
   }
 }
 { "execute": "blockdev-add",
diff --git a/tests/qemu-iotests/184 b/tests/qemu-iotests/184
index 513d167..e4cbcd8 100755
--- a/tests/qemu-iotests/184
+++ b/tests/qemu-iotests/184
@@ -67,10 +67,8 @@
   "arguments": {
     "qom-type": "throttle-group",
     "id": "group0",
-    "props": {
-      "limits" : {
-        "iops-total": 1000
-      }
+    "limits" : {
+      "iops-total": 1000
     }
   }
 }
@@ -96,10 +94,8 @@
   "arguments": {
     "qom-type": "throttle-group",
     "id": "group0",
-    "props" : {
-      "limits": {
-          "iops-total": 1000
-      }
+    "limits": {
+        "iops-total": 1000
     }
   }
 }
@@ -136,10 +132,8 @@
   "arguments": {
     "qom-type": "throttle-group",
     "id": "group0",
-    "props" : {
-      "limits": {
-          "iops-total": 1000
-      }
+    "limits": {
+        "iops-total": 1000
     }
   }
 }
diff --git a/tests/qemu-iotests/218 b/tests/qemu-iotests/218
index ae7c4fb..325d824 100755
--- a/tests/qemu-iotests/218
+++ b/tests/qemu-iotests/218
@@ -152,7 +152,7 @@
     vm.launch()
 
     ret = vm.qmp('object-add', qom_type='throttle-group', id='tg',
-                 props={'x-bps-read': 4096})
+                 limits={'bps-read': 4096})
     assert ret['return'] == {}
 
     ret = vm.qmp('blockdev-add',
diff --git a/tests/qemu-iotests/235 b/tests/qemu-iotests/235
index 20d16db..8aed45f 100755
--- a/tests/qemu-iotests/235
+++ b/tests/qemu-iotests/235
@@ -57,7 +57,7 @@
 vm.launch()
 
 log(vm.qmp('object-add', qom_type='throttle-group', id='tg0',
-           props={ 'x-bps-total': size }))
+           limits={'bps-total': size}))
 
 log(vm.qmp('blockdev-add',
            **{ 'node-name': 'target',
diff --git a/tests/qemu-iotests/245 b/tests/qemu-iotests/245
index cfdeb90..30b1d7b 100755
--- a/tests/qemu-iotests/245
+++ b/tests/qemu-iotests/245
@@ -644,12 +644,12 @@
         ###### throttle ######
         ######################
         opts = { 'qom-type': 'throttle-group', 'id': 'group0',
-                 'props': { 'limits': { 'iops-total': 1000 } } }
+                 'limits': { 'iops-total': 1000 } }
         result = self.vm.qmp('object-add', conv_keys = False, **opts)
         self.assert_qmp(result, 'return', {})
 
         opts = { 'qom-type': 'throttle-group', 'id': 'group1',
-                 'props': { 'limits': { 'iops-total': 2000 } } }
+                 'limits': { 'iops-total': 2000 } }
         result = self.vm.qmp('object-add', conv_keys = False, **opts)
         self.assert_qmp(result, 'return', {})
 
diff --git a/tests/qemu-iotests/258 b/tests/qemu-iotests/258
index 9a2d33a..a661820 100755
--- a/tests/qemu-iotests/258
+++ b/tests/qemu-iotests/258
@@ -103,9 +103,9 @@
         vm.qmp_log('object-add',
                    qom_type='throttle-group',
                    id='tg',
-                   props={
-                       'x-iops-write': 1,
-                       'x-iops-write-max': 1
+                   limits={
+                       'iops-write': 1,
+                       'iops-write-max': 1
                    })
 
         vm.qmp_log('blockdev-add',
diff --git a/tests/qemu-iotests/258.out b/tests/qemu-iotests/258.out
index ce6e9ba..c3a003d 100644
--- a/tests/qemu-iotests/258.out
+++ b/tests/qemu-iotests/258.out
@@ -2,7 +2,7 @@
 
 === Commit and stream finish concurrently (letting stream write) ===
 
-{"execute": "object-add", "arguments": {"id": "tg", "props": {"x-iops-write": 1, "x-iops-write-max": 1}, "qom-type": "throttle-group"}}
+{"execute": "object-add", "arguments": {"id": "tg", "limits": {"iops-write": 1, "iops-write-max": 1}, "qom-type": "throttle-group"}}
 {"return": {}}
 {"execute": "blockdev-add", "arguments": {"backing": {"backing": {"backing": {"backing": {"driver": "raw", "file": {"driver": "file", "filename": "TEST_DIR/PID-node0.img"}, "node-name": "node0"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node1.img"}, "node-name": "node1"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node2.img"}, "node-name": "node2"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node3.img"}, "node-name": "node3"}, "driver": "IMGFMT", "file": {"driver": "throttle", "file": {"driver": "file", "filename": "TEST_DIR/PID-node4.img"}, "throttle-group": "tg"}, "node-name": "node4"}}
 {"return": {}}
@@ -18,7 +18,7 @@
 
 === Commit and stream finish concurrently (letting commit write) ===
 
-{"execute": "object-add", "arguments": {"id": "tg", "props": {"x-iops-write": 1, "x-iops-write-max": 1}, "qom-type": "throttle-group"}}
+{"execute": "object-add", "arguments": {"id": "tg", "limits": {"iops-write": 1, "iops-write-max": 1}, "qom-type": "throttle-group"}}
 {"return": {}}
 {"execute": "blockdev-add", "arguments": {"backing": {"backing": {"backing": {"backing": {"driver": "raw", "file": {"driver": "throttle", "file": {"driver": "file", "filename": "TEST_DIR/PID-node0.img"}, "throttle-group": "tg"}, "node-name": "node0"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node1.img"}, "node-name": "node1"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node2.img"}, "node-name": "node2"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node3.img"}, "node-name": "node3"}, "driver": "IMGFMT", "file": {"driver": "file", "filename": "TEST_DIR/PID-node4.img"}, "node-name": "node4"}}
 {"return": {}}
diff --git a/tests/qemu-iotests/295 b/tests/qemu-iotests/295
index 01a6c0b..270ad39 100755
--- a/tests/qemu-iotests/295
+++ b/tests/qemu-iotests/295
@@ -43,7 +43,7 @@
 
     def to_qmp_object(self):
         return { "qom_type" : "secret", "id": self.id(),
-                 "props": { "data": self.secret() } }
+                 "data": self.secret() }
 
 ################################################################################
 class EncryptionSetupTestCase(iotests.QMPTestCase):
diff --git a/tests/qemu-iotests/296 b/tests/qemu-iotests/296
index 0bc3c6c..7c65e98 100755
--- a/tests/qemu-iotests/296
+++ b/tests/qemu-iotests/296
@@ -43,7 +43,7 @@
 
     def to_qmp_object(self):
         return { "qom_type" : "secret", "id": self.id(),
-                 "props": { "data": self.secret() } }
+                 "data": self.secret() }
 
 ################################################################################