Received: by 2002:a05:7208:9594:b0:7e:5202:c8b4 with SMTP id gs20csp2466483rbb; Wed, 28 Feb 2024 02:45:19 -0800 (PST) X-Forwarded-Encrypted: i=3; AJvYcCUXFHp6Kp78ni53bwtYvW5PhrdWaBu3mJeJg4aqsTNkbybX754IEoXAxBn1zHwkNRvO22QaO2sZI1zsidYWv4xKR7/6ak+UOcQ44Wd5Kw== X-Google-Smtp-Source: AGHT+IHwTVLkcpBzZTZ4BdnsVMZ5ol6CUgJRVDTxq3LBl6QQSY4Gu54K/AKmkS6oIq3WsB1Ywdrk X-Received: by 2002:a17:907:119b:b0:a38:916e:a4fe with SMTP id uz27-20020a170907119b00b00a38916ea4femr8498690ejb.39.1709117119070; Wed, 28 Feb 2024 02:45:19 -0800 (PST) ARC-Seal: i=2; a=rsa-sha256; t=1709117119; cv=pass; d=google.com; s=arc-20160816; b=Btat68gyaRQgWo14rVc7MoKvg0S2PMw6GxWcd/qWGn4M5rDWmrRTrtea8jIv3MKsZR 9hvaxIs+rl8qLuyUmtJM78BwxHl4JFv1i8nNGEVSw5mNzA+SPyebLBoIBaU6049+sLIl RFtgsgKMJTyfLrKGfcEyte8igWkTBhGCN9dGWVvG397A1hCQNlGPBkF9sKc5yQmJIEz5 8Wn7UXyuO2sl/C0qF/kf3r0hha009zjgrOYIXGdmZuXZ0ckjBzGIAv/qvHN1FDvvUViT 6sWfz3flY5fUmWR4pjPVwSBeU+bQmkmXWZ3OK4u2lsZ+61LCiAu2SajY+gx7Yd01pQMF m4IA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=in-reply-to:content-disposition:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:message-id:subject:cc :to:from:date:dkim-signature; bh=8NsXIGA6zLBS15CRyXBxzpZBjAy1d/Jp0whp595UTb4=; fh=FOUzHxXwr9jYy+5fyGqDSG48n1sA83o/kws8zOnhGdY=; b=x8UMSPeXMXE+Mvz+uouYUOHqBf67wdka6VgtBd6ti2mQPfm7CgdMS8ynzyJHeji+p9 zG9xzcMJqldd3uS7wQVN2FPm/uCt2qkcjQu/ZQSpFw1GKtunZTTVDo8UnlkYm0JsxaVt 6iT5Ry/8oqFsskpjT9fa5Qbub6QcS8R+xE1o5NHdMOdqGeroefAgS0GNNjy8xpQV+Cot rsz2xe9sz1u4FwlgxbVw0g0E0AiPwBfikhzC+ChaPYCe8xiYwLZVKVjl4+0svuMznXVW +K3xBeC0za3Nb7MxdLsEzuYgjyok59N1fkWDuSFkEXgx0L2HaLkY6QBam0iPPXP3rFsw CqKA==; dara=google.com ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@alien8.de header.s=alien8 header.b=OOgdDc5E; arc=pass (i=1 spf=pass spfdomain=alien8.de dkim=pass dkdomain=alien8.de dmarc=pass fromdomain=alien8.de); spf=pass (google.com: domain of linux-kernel+bounces-84842-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-84842-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Return-Path: Received: from am.mirrors.kernel.org (am.mirrors.kernel.org. [147.75.80.249]) by mx.google.com with ESMTPS id lj6-20020a170906f9c600b00a42f6cc174csi1625169ejb.197.2024.02.28.02.45.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Feb 2024 02:45:19 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-84842-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=alien8 header.b=OOgdDc5E; arc=pass (i=1 spf=pass spfdomain=alien8.de dkim=pass dkdomain=alien8.de dmarc=pass fromdomain=alien8.de); spf=pass (google.com: domain of linux-kernel+bounces-84842-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) smtp.mailfrom="linux-kernel+bounces-84842-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by am.mirrors.kernel.org (Postfix) with ESMTPS id C86AD1F22F12 for ; Wed, 28 Feb 2024 10:45:18 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A9F0E129A81; Wed, 28 Feb 2024 10:45:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="OOgdDc5E" 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 363567E0FE for ; Wed, 28 Feb 2024 10:45:07 +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=1709117110; cv=none; b=npI52K53//0dquJXXXp4mSZHGsaYJYF0y4L0T3P+tWjIbtuN2tY/FzE+Z5RkJg9waQYAF3sSxKYa0re+zLUSor9wpF6tCoENm8E4X7wYedhC4PsepJ/FsUXNYiI9Ny3O8afzeak5jKwjW/oE+e6AT5D39eIbUYyXH+thRcf51a4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709117110; c=relaxed/simple; bh=kYedqZvj+2++aCKAQmVOXmTmk5jZGQA9WwbipNjpR4U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Gx3vBCSBuOFyHonrElWhUy/UYumRc4r55V2EqRedw3/gAdl6TQfIMZ0X1nvM8cT8dIgGtkHR0q+we4y3RXdzQtOLF0fRDDzBIZOJvRcF4Vm31zkwjzQvOHFmjzPfSY7JCuPq8ZKT4wG82r3mlyonVKZGbiTimvUp9OLZrVguEwI= 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=OOgdDc5E; 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 Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id 0FA2640E019B; Wed, 28 Feb 2024 10:45:06 +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 1rts_zqtANC4; Wed, 28 Feb 2024 10:45:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1709117104; bh=8NsXIGA6zLBS15CRyXBxzpZBjAy1d/Jp0whp595UTb4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=OOgdDc5E9b0wbP8gvGFryzX9PwtOJbhffmpgXOQZVJMyesLQhaMqRcsmmXYxoH5cr D/jVKqFtKP1zirLIaMObF9Z8R37NUptdUnfMdbxo4tWaEsCky9Vy8ESD4NB4qn+hfU JwE3edWdamB4i1XgHzPcB3wVE25YUpQmAGVTf9sDt87ZF1hCfKMRIuV6meqRoiHJk2 3/h6m1iYRSKPTjS5QMNFtXpu6+TqoTf/J4Y6AezXzeUroPia2eQtecPpPiLAG4bvpj C3DIGlF7Q0Wjadxd7MRAUeXx6YJRgVBXU8OtR618VOjA/OXZ8x3UHktZ//1BXOOld/ qsD8q+Ohy1oED+C3HQWZcD5JNKp82lm0TMWXC5pFkxPfqPe7I05ndbyxeWRRpQOmi3 5N5Qf86sxLtP/wqvfcEzF3xP95i+YaVfgaEulDxQzCf6mizS9Iyux80W2yiQ9Wcmpt yeEhAOSUOeh/DLjB0HVgJ8Eho6FoMnS2IW4rl4pTHDt7aFskeTTvTkAilUdmE9S9Xi PjhjXP2bL4S0+3xSAl4zoq5fd9FKA55XPGOLfobhnh+Azy7NYgtk9fZGBdO2DNQF44 fFtilNWB11vrpcwd9lGhDJNJ+o8x+fbqSfyvj04OL4LtUc9bilgBML2C32VLmLj5zi aXqYjUmYURJPYivkbEIraMIc= Received: from zn.tnic (pd953021b.dip0.t-ipconnect.de [217.83.2.27]) (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 ECB2240E01A2; Wed, 28 Feb 2024 10:44:47 +0000 (UTC) Date: Wed, 28 Feb 2024 11:44:47 +0100 From: Borislav Petkov To: Dave Young Cc: Tom Lendacky , "Huang, Kai" , "Gao, Chao" , "Hansen, Dave" , "luto@kernel.org" , "x86@kernel.org" , "peterz@infradead.org" , "hpa@zytor.com" , "mingo@redhat.com" , "kirill.shutemov@linux.intel.com" , "tglx@linutronix.de" , "linux-kernel@vger.kernel.org" , "pbonzini@redhat.com" , "nik.borisov@suse.com" , "bhe@redhat.com" Subject: Re: [PATCH 1/4] x86/coco: Add a new CC attribute to unify cache flush during kexec Message-ID: <20240228104447.GBZd8Onx_D_Doz8dzE@fat_crate.local> References: <9164b0e3-f520-4aab-8b80-520131f0e4db@amd.com> <20240219203222.GIZdO61ucfq4bFxRT0@fat_crate.local> <283877fd-78c7-4322-bbce-ba6420d56765@amd.com> <20240220142812.GBZdS2_HJEA50F8RZD@fat_crate.local> <28a494ca-3173-4072-921c-6c5f5b257e79@amd.com> <24844584-8031-4b58-ba5c-f85ef2f4c718@amd.com> <20240221092856.GAZdXCWGJL7c9KLewv@fat_crate.local> 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, Feb 28, 2024 at 10:54:22AM +0800, Dave Young wrote: > Update: tested on an old laptop as well, I did not find any problems > with unconditional native_wbinvd(), kexec and kdump works fine. Thanks a lot for testing it! -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette