Re: Avoid speculative indirect calls in kernel

[Jiri Kosina]

On Wed, 3 Jan 2018, Andi Kleen wrote:

> > It should be a CPU_BUG bit as we have for the other mess. And that can be
> > used for patching.
> 
> It has to be done at compile time because it requires a compiler option.

If gcc anotates indirect calls/jumps in a way that we could patch them 
using alternatives in runtime, that'd be enough.

-- 
Jiri Kosina
SUSE Labs