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

[Kaplan, David]

[AMD Official Use Only - AMD Internal Distribution Only]

> -----Original Message-----
> From: Daniel Sneddon <daniel.sneddon@xxxxxxxxxxxxxxx>
> Sent: Wednesday, October 9, 2024 2:44 PM
> To: Kaplan, David <David.Kaplan@xxxxxxx>; Jonathan Corbet
> <corbet@xxxxxxx>; Thomas Gleixner <tglx@xxxxxxxxxxxxx>; Borislav Petkov
> <bp@xxxxxxxxx>; Peter Zijlstra <peterz@xxxxxxxxxxxxx>; Josh Poimboeuf
> <jpoimboe@xxxxxxxxxx>; Ingo Molnar <mingo@xxxxxxxxxx>; Dave Hansen
> <dave.hansen@xxxxxxxxxxxxxxx>; x86@xxxxxxxxxx
> Cc: hpa@xxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; pawan.kumar.gupta@xxxxxxxxxxxxxxx
> Subject: Re: [PATCH 1/6] x86/bugs: Create single parameter for VERW based
> mitigations
>
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> On 10/9/24 09:39, Daniel Sneddon wrote:
> >
> >>>
> >>> Are you suggesting a name change away from "clear_cpu_buffers" since
> >>> it is clearly about the mitigation rather than the bug? I'm not sure
> >>> there is a good common name for those 4 bugs that isn't about the
> >>> mitigation, but I'm open to any suggestions.
> >>>
> >>
> >> Yes, I think that would be better.  I wasn't sure on a name either.  In the
> RFDS webpage I see it described as "similar to data sampling transient
> execution attacks".  Perhaps something like that could be an umbrella term?
> >>
>
> data sampling feels a little too generic. How about something like
> microarch_data_sampling?

That's what MDS stands for right?  Might be too associated with that one issue.

Maybe transient_data_sampling?

--David Kaplan