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

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Message-ID:
 <LV3PR12MB926551F0A89B3C7B6209F3A4947F2@LV3PR12MB9265.namprd12.prod.outlook.com>
Date: Wed, 9 Oct 2024 20:02:34 +0000
From: "Kaplan, David" <David.Kaplan@....com>
To: Daniel Sneddon <daniel.sneddon@...ux.intel.com>, Jonathan Corbet
	<corbet@....net>, Thomas Gleixner <tglx@...utronix.de>, Borislav Petkov
	<bp@...en8.de>, Peter Zijlstra <peterz@...radead.org>, Josh Poimboeuf
	<jpoimboe@...nel.org>, Ingo Molnar <mingo@...hat.com>, Dave Hansen
	<dave.hansen@...ux.intel.com>, "x86@...nel.org" <x86@...nel.org>
CC: "hpa@...or.com" <hpa@...or.com>, "linux-doc@...r.kernel.org"
	<linux-doc@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "pawan.kumar.gupta@...ux.intel.com"
	<pawan.kumar.gupta@...ux.intel.com>
Subject: RE: [PATCH 1/6] x86/bugs: Create single parameter for VERW based
 mitigations

[AMD Official Use Only - AMD Internal Distribution Only]

> -----Original Message-----
> From: Daniel Sneddon <daniel.sneddon@...ux.intel.com>
> Sent: Wednesday, October 9, 2024 2:44 PM
> To: Kaplan, David <David.Kaplan@....com>; Jonathan Corbet
> <corbet@....net>; Thomas Gleixner <tglx@...utronix.de>; Borislav Petkov
> <bp@...en8.de>; Peter Zijlstra <peterz@...radead.org>; Josh Poimboeuf
> <jpoimboe@...nel.org>; Ingo Molnar <mingo@...hat.com>; Dave Hansen
> <dave.hansen@...ux.intel.com>; x86@...nel.org
> Cc: hpa@...or.com; linux-doc@...r.kernel.org; linux-
> kernel@...r.kernel.org; pawan.kumar.gupta@...ux.intel.com
> Subject: Re: [PATCH 1/6] x86/bugs: Create single parameter for VERW based
> mitigations
>
> Caution: This message originated from an External Source. Use proper
> caution when opening attachments, clicking links, or responding.
>
>
> 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