Re: [PATCH 1/2] x86: Simplify Retpoline thunk

[Peter Zijlstra]

On Wed, Apr 20, 2022 at 08:27:36AM -0700, Josh Poimboeuf wrote:
> On Tue, Apr 19, 2022 at 10:41:10PM +0200, Peter Zijlstra wrote:
> > Now that we rewrite all the indirect call sites, per commit:
> > 
> >   750850090081 ("x86/alternative: Implement .retpoline_sites support")
> > 
> > it doesn't make sense to have the retpoline thunks be an ALTERNATIVE_2
> > that still includes a 'naked' indirect jump.
> > 
> > (this accidentally 'defunnels' i386 by going back to full retpolines)
> 
> So mitigations=off no longer works on i386?

Also true I suppose... does anybody care? /me runs like heck.

I'd hate to make all this more complicated just because i386 tho :/