diff --git a/docs/envvars.rst b/docs/envvars.rst
index 4635bc1013c..1101b6aaa1b 100644
--- a/docs/envvars.rst
+++ b/docs/envvars.rst
@@ -437,6 +437,19 @@ DRI environment variables
    disable MSAA for GLX/EGL MSAA visuals
 
 
+Vulkan mesa device select layer environment variables
+-----------------------------------------------------
+
+:envvar:`MESA_VK_DEVICE_SELECT`
+   when set to "list" prints the list of devices.
+   when set to "vid:did" number from pci device. That pci device is
+   selected as default. The default device is returned as the first
+   device in vkEnumeratePhysicalDevices api.
+:envvar:`MESA_VK_DEVICE_SELECT_FORCE_DEFAULT_DEVICE`
+   when set to 1, the device identified as default will be the only
+   one returned in vkEnumeratePhysicalDevices api.
+
+
 EGL environment variables
 -------------------------
 
diff --git a/src/vulkan/device-select-layer/device_select_layer.c b/src/vulkan/device-select-layer/device_select_layer.c
index 89d6b1899ed..c84f2ef76ea 100644
--- a/src/vulkan/device-select-layer/device_select_layer.c
+++ b/src/vulkan/device-select-layer/device_select_layer.c
@@ -528,6 +528,11 @@ static VkResult device_select_EnumeratePhysicalDevices(VkInstance instance,
 
    assert(result == VK_SUCCESS);
 
+   /* do not give multiple device option to app if force default device */
+   const char *force_default_device = getenv("MESA_VK_DEVICE_SELECT_FORCE_DEFAULT_DEVICE");
+   if (force_default_device && !strcmp(force_default_device, "1") && selected_physical_device_count != 0)
+      selected_physical_device_count = 1;
+
    for (unsigned i = 0; i < selected_physical_device_count; i++) {
       vk_outarray_append_typed(VkPhysicalDevice, &out, ent) {
          *ent = selected_physical_devices[i];