Re: Avoid speculative indirect calls in kernel

[Thomas Gleixner]

On Wed, 3 Jan 2018, Linus Torvalds wrote:
> On Wed, Jan 3, 2018 at 4:12 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> >
> > It should be a CPU_BUG bit as we have for the other mess. And that can be
> > used for patching.
> 
> That would definitely be the right approach.
> 
> However, that's also probably quite challenging for the gcc option.

AFAICT, the thunk which GCC injects can be supplied to GCC, so it should be
doable.

Thanks,

	tglx