diff --git a/vtest/vtest.h b/vtest/vtest.h
index d599a05..9f9300f 100644
--- a/vtest/vtest.h
+++ b/vtest/vtest.h
@@ -7,5 +7,6 @@ int vtest_send_caps(void);
 
 int vtest_create_resource(void);
 int vtest_resource_unref(void);
+int vtest_submit_cmd(uint32_t length_dw);
 #endif
 
diff --git a/vtest/vtest_renderer.c b/vtest/vtest_renderer.c
index dbbe20a..eb5aea3 100644
--- a/vtest/vtest_renderer.c
+++ b/vtest/vtest_renderer.c
@@ -93,3 +93,22 @@ int vtest_resource_unref(void)
     virgl_renderer_resource_unref(handle);
     return 0;
 }
+
+int vtest_submit_cmd(uint32_t length_dw)
+{
+    uint32_t *cbuf;
+    int ret;
+
+    cbuf = malloc(length_dw * 4);
+    if (!cbuf)
+	return -1;
+
+    ret = read(renderer.remote_fd, cbuf, length_dw * 4);
+    if (ret != length_dw * 4)
+	return -1;
+
+    virgl_renderer_submit_cmd(cbuf, ctx_id, length_dw);
+
+    free(cbuf);
+    return 0;
+}
diff --git a/vtest/vtest_server.c b/vtest/vtest_server.c
index a702139..ee2e33c 100644
--- a/vtest/vtest_server.c
+++ b/vtest/vtest_server.c
@@ -105,6 +105,9 @@ again:
       case VCMD_RESOURCE_UNREF:
 	vtest_resource_unref();
 	break;
+      case VCMD_SUBMIT_CMD:
+	vtest_submit_cmd(header[0]);
+	break;
       default:
 	break;
       }