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 514023D6A for ; Thu, 29 Aug 2024 08:35:16 +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=1724920518; cv=none; b=cFk8bM3MDnMU6lnfPzhh4UDVeN1iukY8wCsPmQNQ7DjHt+fUxkiqWJ1KaFjwpcncUSgHlECx+1OlUUlGfsy0mYX0qN67xB+lwLjhOik8xOBIh4qYrosl7Wbtwwi+Hsj0QVYiXAli+HP8Y9qSHPrbjJe139tYN7CRbiIYgHgBLGI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724920518; c=relaxed/simple; bh=6iZ8iIGBRLFC4519kTdXtS0rAGmtcKBdcw8S6IFTyEI=; h=Date:From:To:CC:Subject:In-Reply-To:References:Message-ID: MIME-Version:Content-Type; b=N+ZlqV4xezEliP6zfKTCqhKerU7hvP1fnHgM/EmIHDmzmccP+nH5BkO9cKmbJKtg8NeDB797hu9K89JhLMsvcude07wVj/r+1P6jzIjq1FT1V29ThgL99e+qzFUZX1H/TDfMqCAP9Xx/pGEDeBF46iAj53SfHHDPhW6F1bcaDA8= 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=cah3Mpc5; 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="cah3Mpc5" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 07C2540E01C5; Thu, 29 Aug 2024 08:35:14 +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 g_I6YJdYLlmn; Thu, 29 Aug 2024 08:35:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1724920509; bh=CPJhcm4WSc5DpBeeH7qgshS/p1SRpirWBGGJlu0SQk4=; h=Date:From:To:CC:Subject:In-Reply-To:References:From; b=cah3Mpc5nSYpGQMyejkNsp95hkl/X+s6B5xBrgHTfPCNNQHp02ZSXOUI3HjjX9DhW vEjexwCY727LS3YMNoK0hQUMyonR7aCZ6D039tIZEc0OGBucSwndlYqbguDZ5gi4V1 qhZLMvXyyeZMQu6daP0guN8Y1oKm6wakJjFYxPGOxJLNxtRkK+Z+Ex/igPHquHI7Wj Ddds+DrEZRos0kyn+w1xjqjEOWO/CswZhHip6siwbkvvkLWV5HCiPMzsqyHYzuUJoT L5qAqTd7VSvRgD2Z1lZm5t9usfqnAZaWvE1uVf4Va1N3vBI82FN068qKydf+GuJidM XA1OKDiXNXqX6CU65lFshs7FVcU81qS2symUlsmgah/jJijv/Tf0+WDNXM80jUmtfG Nlfq/D7c6dvsjCzZq6aRE4X0n+UsndkhJQiIm0XIRUG9GGVUW/RgrPl5RQ3h7s4yoL 3HIXB4MRZm3S3Yac4tzt6ibF8iW4XM+Ll3t856HohJIhipSd1Bm0aYJr6hm2CmI2vW WVddYO2iPSadIGgueMUoLwBneHPNBouJQPv+xtq6+hv0CCXnB9obYO8ytEQsrQei75 OGA2vtzuB2ZuJwSvSswy6ChUfr7Bf8mfj7ZWYX5nRoa/YrU7DDUXMabC788QCRKSqU s0hrlESh+O3tj6sHBKJoGii4= Received: from [127.0.0.1] (business-24-134-159-81.pool2.vodafone-ip.de [24.134.159.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 51BEC40E016A; Thu, 29 Aug 2024 08:34:53 +0000 (UTC) Date: Thu, 29 Aug 2024 10:34:49 +0200 From: Borislav Petkov To: Ashish Kalra , seanjc@google.com, pbonzini@redhat.com, dave.hansen@linux.intel.com, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org CC: hpa@zytor.com, peterz@infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, thomas.lendacky@amd.com, michael.roth@amd.com, kexec@lists.infradead.org, linux-coco@lists.linux.dev Subject: Re: [PATCH] x86/sev: Fix host kdump support for SNP User-Agent: K-9 Mail for Android In-Reply-To: <20240827203804.4989-1-Ashish.Kalra@amd.com> References: <20240827203804.4989-1-Ashish.Kalra@amd.com> Message-ID: <87475131-856C-44DC-A27A-84648294F094@alien8.de> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On August 27, 2024 10:38:04 PM GMT+02:00, Ashish Kalra wrote: >From: Ashish Kalra > >With active SNP VMs, SNP_SHUTDOWN_EX invoked during panic notifiers cause= s >crashkernel boot failure with the following signature: Why would SNP_SHUTDOWN be allowed *at all* if there are active SNP guests = and there's potential to lose guest data in the process?! I don't think you want to be on the receiving end of those customer suppor= t calls at your cloud provider=2E=2E=2E --=20 Sent from a small device: formatting sucks and brevity is inevitable=2E