Re: [PATCH] x86: add hintable NOPs emulation

From: Borislav Petkov
Date: Wed Aug 20 2025 - 06:11:44 EST


On Wed, Aug 20, 2025 at 12:01:30PM +0200, Marcos Del Sol Vives wrote:
> Please define "once". Once per what? Per boot? Per executable? Per process?

pr_err_once(). Per boot.

> Once per boot would mean they'd need to reboot to see if any other executables
> are affected.

We'll cross that bridge when we get to it.

> (again, like IOPL emulation which was already deemed okay a couple years ago
> and merged into the kernel)

When it is flooding dmesg for no good reason, I wouldn't mind toning that down
too.

IOW, I wanna see a real, actual use case which justifies flooding dmesg. If
you don't have one, then we'll do it only when it is really warranted.

--
Regards/Gruss,
Boris.

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