> > it's a mistake though... retpoline is what people should be using .... > > ... and only in super exception cases should IBRS even be considered > > Like on certain Skylake and Broadwell where using the retpoline won't suffice?
skylake is a bit more complex but that was discussed in earlier emails where a few more things are needed. No idea what you're inventing on broadwell where you would use ibrs but not retpoline > - The CPU can do retpoline, but MSRS are faster (is that even the case?) that is never the case
