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This day and age, nobody should use WBINVD > ever. We've managed to not do this for decades, and I'm thinking that > either the SPEC is 'mistaken' or otherwise out of line with reality. > If you hate performance, and you want to break things like CAT, feel > free to put this in your own kernel. Sorry, i made a mistake, i meant ACPI 6.4 and 6.5. I already resent this patch please check the resended one.