Re: [tip: x86/boot] x86/boot: Ignore NMIs during very early boot
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- Subject: Re: [tip: x86/boot] x86/boot: Ignore NMIs during very early boot
- From: Borislav Petkov <bp@xxxxxxxxx>
- Date: Thu, 30 Nov 2023 11:33:39 +0100
- Cc: linux-tip-commits@xxxxxxxxxxxxxxx, "Jun'ichi Nomura" <junichi.nomura@xxxxxxx>, Derek Barbosa <debarbos@xxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Kees Cook <keescook@xxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Paul E. McKenney" <paulmck@xxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, x86@xxxxxxxxxx
- In-reply-to: <170133478498.398.5261666675868615202.tip-bot2@tip-bot2>
- References: <170133478498.398.5261666675868615202.tip-bot2@tip-bot2>
On Thu, Nov 30, 2023 at 08:59:44AM -0000, tip-bot2 for Jun'ichi Nomura wrote:
> +void do_boot_nmi_trap(struct pt_regs *regs, unsigned long error_code)
> +{
> + /* Empty handler to ignore NMI during early boot */
It might be good to issue something here to say that a spurious NMI got
ignored.
Something ala
error_putstr("Spurious early NMI ignored.\n");
so that we at least say that we ignored an NMI and not have it disappear
unnoticed.
Hmmm.
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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