The recently proposed Intel open-source Vulkan driver split where the Gen7/Gen8 graphics support would be shifted off to a separate “new” legacy driver has happened to allow the Intel ANV Vulkan driver to move forward with its Skylake “Gen9” graphics and later focus…
Source: Phoronix – Intel Vulkan Driver Split Happens – “HASVK” Introduced For Older Gen7/Gen8 Graphics