Re: [PATCH] x86/bugs: Add force_cpu_bug= cmdline param
From: Borislav Petkov
Date: Tue Dec 17 2024 - 06:18:20 EST
On Mon, Dec 16, 2024 at 06:58:24PM +0100, Brendan Jackman wrote:
> OK yeah, tainting definitely makes sense, I think that goes quite a
> long way to avoid bogus bug reports?
It was my feeble attempt back then to leave enough breadcrumbs so that when
I see a bug report, I can say: "well, then don't do that then" and mark it as
invalid. :)
> I will also update the docs to sound scarier.
Right.
> So do you think we should allow setting arbitrary cpu features? That
> seems like a much bigger footgun. But then again, the difference
> between "big footgun" and "very big footgun" is not that important,
> either way it needs to be clear to users that this is a scary red
> button.
Yeah, with your patch we're half-way there. Might as well do the whole thing
but again, this is only my opinion. Probably should hear what others have to
say first...
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette