Require to enable implicit layers

Components: Vulkan

Affects: none

Vulkan issue: 2517

Change-Id: I11beee411ecb11c0d9ee140103a80c4ba7a39966

diff --git a/external/vulkancts/README.md b/external/vulkancts/README.md
index 2acf5a9..7d0c6ca 100644 (file)
--- a/external/vulkancts/README.md
+++ b/external/vulkancts/README.md
@@ -144,7 +144,10 @@ Following command line options MUST be used when running CTS:
        --deqp-log-images=disable
        --deqp-log-shader-sources=disable
 
-In addition on multi-device systems the device for which conformance is claimed
+If an implementation ships with [implicit layers](https://github.com/KhronosGroup/Vulkan-Loader/blob/master/loader/LoaderAndLayerInterface.md#implicit-vs-explicit-layers) enabled, then such layers must be enabled
+when running CTS.
+
+In addition, on multi-device systems the device for which conformance is claimed
 can be selected with:
 
        --deqp-vk-device-id=<value>