On 4/12/22 06:36, Jon Kohler wrote: > So my theory here is to extend the logical effort of the microcode driven > automatic disablement as well as the tsx=auto automatic disablement and > have tsx=on force abort all transactions on X86_BUG_TAA SKUs, but leave > the CPU features enumerated to maintain live migration. > > This would still leave TSX totally good on Ice Lake / non-buggy systems. > > If it would help, I'm working up an RFC patch, and we could discuss there? Sure. But, it sounds like you really want a new tdx=something rather than to muck with tsx=on behavior. Surely someone else will come along and complain that we broke their TDX setup if we change its behavior. Maybe you should just pay the one-time cost and move your whole fleet over to tsx=off if you truly believe nobody is using it.
