Re: Why just now and will MS/Linux be intelligent?
They have been doing that, yes - the Meltdown stuff isn't applied to AMD at all. There's more that they could be doing w.r.t. PCID when INVPCID is not available (most 3xxx/4xxx/G32xx/G1xxx Intel chips), and maybe they will in due course, but it that's an optimization that can be done a little later.