diff -up mesa-21.3.0/src/gallium/frontends/lavapipe/lvp_device.cdma mesa-21.3.0/src/gallium/frontends/lavapipe/lvp_device.c

--- mesa-21.3.0/src/gallium/frontends/lavapipe/lvp_device.cdma	2021-11-18 06:16:20.000000000 +1000

+++ mesa-21.3.0/src/gallium/frontends/lavapipe/lvp_device.c	2021-11-18 07:03:17.652283186 +1000

@@ -213,6 +213,9 @@ VKAPI_ATTR VkResult VKAPI_CALL lvp_Creat

    if (pAllocator == NULL)

       pAllocator = vk_default_allocator();

+   if (!getenv("RH_SW_VULKAN"))

+      return VK_ERROR_INITIALIZATION_FAILED;

+

    instance = vk_zalloc(pAllocator, sizeof(*instance), 8,

                         VK_SYSTEM_ALLOCATION_SCOPE_INSTANCE);

    if (!instance)