From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C72E87080D; Wed, 24 Jun 2026 14:55:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782312922; cv=none; b=nKX56vsAim/Rq7gD58DqygXqCcyjrQQuMaYlB3vxjwJX0ekZ5awIY+s0lKcTq+8WyGk+WLB1la+ADIPPb4elXQdGKq2/JIDysS2Hg1cxl4ZBs62PKapGDfr7V5+OiLrLnmbSl71VpjLlKmt1bBHx6UIXSo54C5lDXvdv7gEQF/s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782312922; c=relaxed/simple; bh=4nd3yqcYNi3f7qm94r9ycstMdmmR5xlz/Ot0GPRN/SA=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=MtMdXF7TkcxmQJzmJWRg/KTm5XgOIi6hQp25ckIM3WRmgK8gRxmAUBb1tOPicYpAHN6iqBXyVy3cjEl/jX2qx9lveEVYDPtBWMEHvF+gj29e449ewL+FjsYuhT5FEg553BXgiLD3sU50OacbSICeWWyM7YDgMQSwEQByB08xZuM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=Iqg2ldxM; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="Iqg2ldxM" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id E923540E0031; Wed, 24 Jun 2026 14:55:17 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id GRNam2NP54VA; Wed, 24 Jun 2026 14:55:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1782312908; bh=Ieg4mv/KoDtt92MiGbXazKY3j5Ot+XMJxqgH9tTjzDY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Iqg2ldxM+Z01crie45EqthIKw1UF3KgTxKOYHIbYF2E9A7T1zmudjmLsCT48q0Kts iaOTgxNtakIFqNsLXLDxSySAMFvPQBWwNLEMwzq/XoMUk59EIdQbHqWE17N0z9zKQf +3Poio93ljCRBouOJSF+fkMpA+8anpg+P41UoNV2gF8JoG/gfw5VgiH8BTGdTK+LBo mAJv2KSVsUDnm0fBh6Z7l6gM6+gJ+MgqTNkV2zHXQtwCLyrMKlGafw3NsJJiRd5/SJ zjuUzeT9eH0nJOwbtpj6TrGXnr7zlBslQcEVLN/tWgXOSvLcVR8aAAtZGbuK6Unl7G QI+oCfTvTiMTTe+3F0fJPFo3sAgsXr5xZ2JeU0mxKSBw/lkZJqGOhSws2n0UXD/aKF JZw/IfZkdFQwavyFBzSZIK0qcW+U5VmeVpYAdDaQY3bW/KZLrC2gmeRL3nrP12bAob HGWuG4yd4g4EUjiScSwt4VkBINb5m8hAo8BPAO2ffoK3mr8q558rVImuKTLLlFPPuh rRD1B8eVcf58iW5Z5+tmJ5RMb1lu2zjl8pzRTZH+BMIwChmreSfwv1gPDaJnr085yV oskvtuM6wpYtFZLqglE8mFbDGNDn8njFfwbXPNU4HQ6zz2fHUU4DCZ/gClrPqemAtW bZe/26cBUX67yBdDOyID8gBQ= Received: from stx.tnic (unknown [IPv6:2600:1700:38ca:c00::1a]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 5055440E00BF; Wed, 24 Jun 2026 14:54:55 +0000 (UTC) Date: Wed, 24 Jun 2026 07:54:51 -0700 From: Borislav Petkov To: Ingo Molnar Cc: Jason Andryuk , Mario Limonciello , Yazen Ghannam , Thomas Gleixner , Ingo Molnar , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Penny Zheng , stable@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] x86: Avoid divide by 0 in amd_smn_init() Message-ID: <20260624145451.GAajvvu2eLMa8yUDcK@fat_crate.local> References: <20260623211904.3674-1-jason.andryuk@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: On Wed, Jun 24, 2026 at 11:21:51AM +0200, Ingo Molnar wrote: > Why should we not go back to something similar to the pre-40a5f6ffdfc8 Because this code obviously cannot run in a guest. See my other reply. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette