Hi Arjan and Greg, Sorry if I am not being clear enough. My point is that there is a check for X86_VENDOR_AMD now in two places. It is still hardcoded for the auto boot option which I think should not be there. The patch on that basis looked incomplete to me. Put another way, there is no effect to the auto option where the contents of cpu_no_meltdown[] are changed and cpu_vulnerable_to_meltdown returns differently. The auto option does not make use of a determination of the X86_BUG_CPU_MELTDOWN state. This seems wrong to me. It does not seem correct to me for the auto option to have this duplication with a check for just X86_VENDOR_AMD. Regards, Nick