Re: [PATCH 1/6] x86/bugs: Create single parameter for VERW based mitigations

[Josh Poimboeuf]

On Tue, Oct 08, 2024 at 07:24:01PM +0000, Kaplan, David wrote:
> > There are currently 4 mitigations that use VERW to flush different cpu buffers. This
> > can cause confusion when trying to disable all the different VERW mitigations.
> > Simplify enabling/disabling these mitigations by creating a single parameter for
> > controlling them.
> 
> Just curious, what is the use case for disabling the different VERW
> mitigations (but not other mitigations)?  Is that a testing/debugging
> use case or a production use case?

I'm also wondering about this.  I like the idea of cleaning up the code
mess (like in patch 6) but I'm not sure I see the benefit of this patch
to add yet another option.

Is this a realistic use case?  Are people really going to want to
enable/disable VERW mitigations as a group?

-- 
Josh