From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7D10C433EF for ; Fri, 12 Nov 2021 20:07:18 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 74FAB60E8F for ; Fri, 12 Nov 2021 20:07:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 74FAB60E8F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=alien8.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id B7C146B0075; Fri, 12 Nov 2021 15:07:17 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id B2BD16B0078; Fri, 12 Nov 2021 15:07:17 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 9F4236B007B; Fri, 12 Nov 2021 15:07:17 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0179.hostedemail.com [216.40.44.179]) by kanga.kvack.org (Postfix) with ESMTP id 8FC6F6B0075 for ; Fri, 12 Nov 2021 15:07:17 -0500 (EST) Received: from smtpin12.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 3EBA61853BCA5 for ; Fri, 12 Nov 2021 20:07:17 +0000 (UTC) X-FDA: 78801362514.12.5EBE9F1 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by imf05.hostedemail.com (Postfix) with ESMTP id C54AF5098CC5 for ; Fri, 12 Nov 2021 20:06:53 +0000 (UTC) Received: from zn.tnic (p4fed33a9.dip0.t-ipconnect.de [79.237.51.169]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 54D4A1EC0529; Fri, 12 Nov 2021 21:07:14 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1636747634; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:in-reply-to:in-reply-to: references:references; bh=qZ7MOAyZyrJAApU6BzNgJfJjmgahzhT2ZevVF49HWuI=; b=KzejhEYkg/1Rt+3DbkuDxfysNCLXypiVrS/G19UU3kedCRz9v9OKaWWGOIYB9CIMLRuCr+ 7w2hVja2Idq8EWHosziSCsbgInOKXSoYTU5sm21jwLTFkJMh8rxxBRZ2hmrfTcZ7eiWESt hTKY0K8+5OhuvMXwayiEseuMYJ8XPN8= Date: Fri, 12 Nov 2021 21:04:58 +0100 From: Borislav Petkov To: Sean Christopherson Cc: Dave Hansen , Peter Gonda , Brijesh Singh , x86@kernel.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, linux-coco@lists.linux.dev, linux-mm@kvack.org, linux-crypto@vger.kernel.org, Thomas Gleixner , Ingo Molnar , Joerg Roedel , Tom Lendacky , "H. Peter Anvin" , Ard Biesheuvel , Paolo Bonzini , Vitaly Kuznetsov , Wanpeng Li , Jim Mattson , Andy Lutomirski , Dave Hansen , Sergio Lopez , Peter Zijlstra , Srinivas Pandruvada , David Rientjes , Dov Murik , Tobin Feldman-Fitzthum , Michael Roth , Vlastimil Babka , "Kirill A . Shutemov" , Andi Kleen , tony.luck@intel.com, marcorr@google.com, sathyanarayanan.kuppuswamy@linux.intel.com Subject: Re: [PATCH Part2 v5 00/45] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Message-ID: References: <20210820155918.7518-1-brijesh.singh@amd.com> <061ccd49-3b9f-d603-bafd-61a067c3f6fa@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: C54AF5098CC5 X-Stat-Signature: 4mkfjhbaf9eib5pai4bqdb4abeyy3s4g Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=alien8.de header.s=dkim header.b=KzejhEYk; spf=pass (imf05.hostedemail.com: domain of bp@alien8.de designates 5.9.137.197 as permitted sender) smtp.mailfrom=bp@alien8.de; dmarc=pass (policy=none) header.from=alien8.de X-HE-Tag: 1636747613-350816 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Nov 12, 2021 at 07:48:17PM +0000, Sean Christopherson wrote: > Yes, but IMO inducing a fault in the guest because of _host_ bug is wrong. What do you suggest instead? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette