Re: [Patch v5 11/16] x86/speculation: Add Spectre v2 app to app protection modes

From: Dave Hansen
Date: Mon Nov 19 2018 - 18:25:45 EST


On 11/19/18 3:16 PM, Andrea Arcangeli wrote:
> So you may want to ask why it wasn't written as your "any" vs "any" email:

Presumably because the authors really and truly meant what they said. I
was not being as careful in my wording as they were. :)

There is nothing in the spec that says that STIBP disables branch
prediction itself, or that it keeps a thread from influencing *itself*.