linux-kernel - Re: [PATCH v2] x86/boot: Add a message about ignored early NMIs

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Message-ID: <20240115101443.yrt7abegw2m6fxlt@box.shutemov.name>
Date: Mon, 15 Jan 2024 13:14:43 +0300
From: "kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>
To: NOMURA JUNICHI(野村　淳一) <junichi.nomura@....com>
Cc: "mingo@...hat.com" <mingo@...hat.com>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"bp@...en8.de" <bp@...en8.de>,
	"dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
	"x86@...nel.org" <x86@...nel.org>, "hpa@...or.com" <hpa@...or.com>,
	"ardb@...nel.org" <ardb@...nel.org>,
	"david@...hat.com" <david@...hat.com>,
	"nikunj@....com" <nikunj@....com>,
	"thomas.lendacky@....com" <thomas.lendacky@....com>,
	"debarbos@...hat.com" <debarbos@...hat.com>,
	"jlelli@...hat.com" <jlelli@...hat.com>,
	"lgoncalv@...hat.com" <lgoncalv@...hat.com>,
	"dzickus@...hat.com" <dzickus@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] x86/boot: Add a message about ignored early NMIs

On Mon, Jan 15, 2024 at 08:57:45AM +0000, NOMURA JUNICHI(野村 淳一) wrote:
> Commit 78a509fba9c9 ("x86/boot: Ignore NMIs during very early boot") added
> empty handler in early boot stage to avoid boot failure by spurious NMIs.
> 
> Add a diagnostic message in case we need to know whether early NMIs have
> occurred and/or what happened to them.
> 
> Signed-off-by: Jun'ichi Nomura <junichi.nomura@....com>
> Suggested-by: Borislav Petkov <bp@...en8.de>
> Suggested-by: H. Peter Anvin <hpa@...or.com>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
  Kiryl Shutsemau / Kirill A. Shutemov