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Date:   Thu, 5 Sep 2019 15:31:56 +0200 (CEST)
From:   Jiri Kosina <jikos@kernel.org>
To:     Josh Poimboeuf <jpoimboe@redhat.com>
cc:     Petr Mladek <pmladek@suse.com>,
        Joe Lawrence <joe.lawrence@redhat.com>,
        Miroslav Benes <mbenes@suse.cz>, linux-kernel@vger.kernel.org,
        live-patching@vger.kernel.org
Subject: Re: [RFC PATCH 2/2] livepatch: Clear relocation targets on a module
 removal
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On Thu, 5 Sep 2019, Josh Poimboeuf wrote:

> > All the indirect jumps are turned into alternatives when retpolines 
> > are in place.
> 
> Actually in C code those are done by the compiler as calls/jumps to
> __x86_indirect_thunk_*.

Sure, and the thunks do the redirection via JMP_NOSPEC / CALL_NOSPEC, 
which has alternative in it.

-- 
Jiri Kosina
SUSE Labs