diff --git a/nova/api/openstack/compute/hosts.py b/nova/api/openstack/compute/hosts.py
index ba5fac3db853..a2eac66a9c19 100644
--- a/nova/api/openstack/compute/hosts.py
+++ b/nova/api/openstack/compute/hosts.py
@@ -40,6 +40,7 @@ class HostController(wsgi.Controller):
         super(HostController, self).__init__()
 
     @wsgi.Controller.api_version("2.1", "2.42")
+    @validation.query_schema(hosts.index_query)
     @extensions.expected_errors(())
     def index(self, req):
         """Returns a dict in the format
diff --git a/nova/api/openstack/compute/schemas/hosts.py b/nova/api/openstack/compute/schemas/hosts.py
index 3905fc63aa2d..e708e8a1ca31 100644
--- a/nova/api/openstack/compute/schemas/hosts.py
+++ b/nova/api/openstack/compute/schemas/hosts.py
@@ -12,6 +12,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from nova.api.validation import parameter_types
+
 update = {
     'type': 'object',
     'properties': {
@@ -34,3 +36,15 @@ update = {
     },
     'additionalProperties': False
 }
+
+index_query = {
+    'type': 'object',
+    'properties': {
+        'zone': parameter_types.multi_params({'type': 'string'})
+    },
+    # NOTE(gmann): This is kept True to keep backward compatibility.
+    # As of now Schema validation stripped out the additional parameters and
+    # does not raise 400. In the future, we may block the additional parameters
+    # by bump in Microversion.
+    'additionalProperties': True
+}
diff --git a/nova/tests/unit/api/openstack/compute/test_hosts.py b/nova/tests/unit/api/openstack/compute/test_hosts.py
index 308202e8b1d9..b7a85d9a3fe0 100644
--- a/nova/tests/unit/api/openstack/compute/test_hosts.py
+++ b/nova/tests/unit/api/openstack/compute/test_hosts.py
@@ -17,7 +17,6 @@ import mock
 import testtools
 import webob.exc
 
-from nova.api.openstack import api_version_request as api_version
 from nova.api.openstack.compute import hosts as os_hosts_v21
 from nova.compute import power_state
 from nova.compute import vm_states
@@ -129,12 +128,6 @@ def _create_instance_dict(**kwargs):
     return inst
 
 
-class FakeRequestWithNovaZone(object):
-    environ = {"nova.context": context_maker.get_admin_context()}
-    GET = {"zone": "nova"}
-    api_version_request = api_version.APIVersionRequest('2.1')
-
-
 class HostTestCaseV21(test.TestCase):
     """Test Case for hosts."""
     validation_ex = exception.ValidationError
@@ -178,6 +171,49 @@ class HostTestCaseV21(test.TestCase):
         hosts = result['hosts']
         self.assertEqual(fake_hosts.HOST_LIST, hosts)
 
+    def test_list_host_with_multi_filter(self):
+        query_string = 'zone=nova1&zone=nova'
+        req = fakes.HTTPRequest.blank('', use_admin_context=True,
+                                      query_string=query_string)
+        result = self.controller.index(req)
+        self.assertIn('hosts', result)
+        hosts = result['hosts']
+        self.assertEqual(fake_hosts.HOST_LIST_NOVA_ZONE, hosts)
+
+    def test_list_host_query_allow_negative_int_as_string(self):
+        req = fakes.HTTPRequest.blank('', use_admin_context=True,
+                                      query_string='zone=-1')
+        result = self.controller.index(req)
+        self.assertIn('hosts', result)
+        hosts = result['hosts']
+        self.assertEqual([], hosts)
+
+    def test_list_host_query_allow_int_as_string(self):
+        req = fakes.HTTPRequest.blank('', use_admin_context=True,
+                                      query_string='zone=123')
+        result = self.controller.index(req)
+        self.assertIn('hosts', result)
+        hosts = result['hosts']
+        self.assertEqual([], hosts)
+
+    def test_list_host_with_unknown_filter(self):
+        query_string = 'unknown_filter=abc'
+        req = fakes.HTTPRequest.blank('', use_admin_context=True,
+                                      query_string=query_string)
+        result = self.controller.index(req)
+        self.assertIn('hosts', result)
+        hosts = result['hosts']
+        self.assertEqual(fake_hosts.HOST_LIST, hosts)
+
+    def test_list_host_with_hypervisor_and_additional_filter(self):
+        query_string = 'zone=nova&additional_filter=nova2'
+        req = fakes.HTTPRequest.blank('', use_admin_context=True,
+                                      query_string=query_string)
+        result = self.controller.index(req)
+        self.assertIn('hosts', result)
+        hosts = result['hosts']
+        self.assertEqual(fake_hosts.HOST_LIST_NOVA_ZONE, hosts)
+
     def test_disable_host(self):
         self._test_host_update('host_c1', 'status', 'disable', 'disabled')
         self._test_host_update('host_c2', 'status', 'disable', 'enabled')
@@ -383,7 +419,10 @@ class HostTestCaseV21(test.TestCase):
                               self.controller.show, self.req, s_ref['host'])
 
     def test_list_hosts_with_zone(self):
-        result = self.controller.index(FakeRequestWithNovaZone())
+        query_string = 'zone=nova'
+        req = fakes.HTTPRequest.blank('', use_admin_context=True,
+                                      query_string=query_string)
+        result = self.controller.index(req)
         self.assertIn('hosts', result)
         hosts = result['hosts']
         self.assertEqual(fake_hosts.HOST_LIST_NOVA_ZONE, hosts)