diff --git a/tests/qemumigparamstest.c b/tests/qemumigparamstest.c
index dd6b7d5d60..f445c92ff8 100644
--- a/tests/qemumigparamstest.c
+++ b/tests/qemumigparamstest.c
@@ -171,6 +171,7 @@ qemuMigParamsTestJSON(const void *opaque)
                                       data->qmpschema,
                                       false,
                                       false,
+                                      false,
                                       &debug) < 0) {
         VIR_TEST_VERBOSE("failed to validate migration params '%s' against QMP schema: %s",
                          actualJSON, virBufferCurrentContent(&debug));
diff --git a/tests/qemumigrationcookiexmltest.c b/tests/qemumigrationcookiexmltest.c
index 6ef5dc0ad6..316bfedd15 100644
--- a/tests/qemumigrationcookiexmltest.c
+++ b/tests/qemumigrationcookiexmltest.c
@@ -342,6 +342,7 @@ testQemuMigrationCookieBlockDirtyBitmaps(const void *opaque)
                                       qmpschema,
                                       false,
                                       false,
+                                      false,
                                       &debug) < 0) {
         VIR_TEST_VERBOSE("failed to validate migration params '%s' against QMP schema: %s",
                          actualJSON, virBufferCurrentContent(&debug));
diff --git a/tests/qemumonitortestutils.c b/tests/qemumonitortestutils.c
index 71b26c326e..f5eb77d190 100644
--- a/tests/qemumonitortestutils.c
+++ b/tests/qemumonitortestutils.c
@@ -542,6 +542,7 @@ qemuMonitorTestProcessCommandDefaultValidate(qemuMonitorTest *test,
     if (testQEMUSchemaValidateCommand(cmdname, args, test->qapischema,
                                       test->skipValidationDeprecated,
                                       test->skipValidationRemoved,
+                                      false,
                                       &debug) < 0) {
         if (virTestGetDebug() == 2) {
             g_autofree char *argstr = NULL;
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index a0ee5f9943..d6cc2a51c2 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -535,7 +535,7 @@ testCompareXMLToArgvValidateSchemaCommand(GStrv args,
                 return -1;
 
             if (testQEMUSchemaValidateCommand(command->schema, jsonargs,
-                                              schema, false, false, &debug) < 0) {
+                                              schema, false, false, false, &debug) < 0) {
                 VIR_TEST_VERBOSE("failed to validate '%s %s' against QAPI schema: %s",
                                  command->name, curargs, virBufferCurrentContent(&debug));
                 return -1;
diff --git a/tests/testutilsqemuschema.c b/tests/testutilsqemuschema.c
index f6347231a8..4f9db98e07 100644
--- a/tests/testutilsqemuschema.c
+++ b/tests/testutilsqemuschema.c
@@ -25,6 +25,7 @@ struct testQEMUSchemaValidateCtxt {
     GHashTable *schema;
     virBuffer *debug;
     bool allowDeprecated;
+    bool allowIncomplete; /* allow members not (yet) covered by the schema */
 };
 
 
@@ -137,6 +138,10 @@ testQEMUSchemaValidateObjectMember(const char *key,
 
     /* lookup 'member' entry for key */
     if (!(keymember = testQEMUSchemaStealObjectMemberByName(key, data->rootmembers))) {
+        if (data->ctxt->allowIncomplete) {
+            virBufferAddLit(data->ctxt->debug, " schema missing - OK(waived)\n");
+            return 0;
+        }
         virBufferAddLit(data->ctxt->debug, "ERROR: attribute not in schema\n");
         return -1;
     }
@@ -553,6 +558,8 @@ testQEMUSchemaValidate(virJSONValue *obj,
  * @allowDeprecated: don't fails schema validation if @command or one of @arguments
  *                   is deprecated
  * @allowRemoved: skip validation fully if @command was not found
+ * @allowIncomplete: don't fail validation if members not covered by schema are present
+ *                   (for waiving commands with incomplete schema)
  * @debug: a virBuffer which will be filled with debug information if provided
  *
  * Validates whether @command and its @arguments conform to the QAPI schema
@@ -571,11 +578,13 @@ testQEMUSchemaValidateCommand(const char *command,
                               GHashTable *schema,
                               bool allowDeprecated,
                               bool allowRemoved,
+                              bool allowIncomplete,
                               virBuffer *debug)
 {
     struct testQEMUSchemaValidateCtxt ctxt = { .schema = schema,
                                                .debug = debug,
-                                               .allowDeprecated = allowDeprecated };
+                                               .allowDeprecated = allowDeprecated,
+                                               .allowIncomplete = allowIncomplete };
     g_autofree char *schemapatharguments = g_strdup_printf("%s/arg-type", command);
     g_autoptr(virJSONValue) emptyargs = NULL;
     virJSONValue *schemarootcommand;
diff --git a/tests/testutilsqemuschema.h b/tests/testutilsqemuschema.h
index ba881a991a..cb1e6da69e 100644
--- a/tests/testutilsqemuschema.h
+++ b/tests/testutilsqemuschema.h
@@ -35,6 +35,7 @@ testQEMUSchemaValidateCommand(const char *command,
                               GHashTable *schema,
                               bool allowDeprecated,
                               bool allowRemoved,
+                              bool allowIncomplete,
                               virBuffer *debug);
 
 int