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[2620:137:e000::1:20]) by mx.google.com with ESMTP id o8-20020a1709026b0800b001a979141a24si7237546plk.214.2023.06.12.10.16.12; Mon, 12 Jun 2023 10:16:27 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@alien8.de header.s=dkim header.b=F5iSPj2v; dkim=pass header.i=@alien8.de header.s=alien8 header.b=N00XqUTF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=alien8.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237249AbjFLRFt (ORCPT + 99 others); Mon, 12 Jun 2023 13:05:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237169AbjFLRFs (ORCPT ); Mon, 12 Jun 2023 13:05:48 -0400 Received: from mail.skyhub.de (mail.skyhub.de [5.9.137.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 956D9E7B for ; Mon, 12 Jun 2023 10:05:47 -0700 (PDT) Received: from mail.alien8.de (mail.alien8.de [IPv6:2a01:4f9:3051:3f93::2]) (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 2D2E41EC008F; Mon, 12 Jun 2023 19:05:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1686589546; 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=iI3sumeUQaq1tz9CtWmsfggsFnd9M6EvrVjxwtdM0MI=; b=F5iSPj2vDiaQzibJ+SRJ52T8+s0DK2jqmiDJqAhh4ll0LQ8hsIaceOwWaqE1OtRtd/3EUy xxMX1HG5rzL5q4yeYYsmS2X1PPjNYza5gpQhZ6DWx1uFHeVSGwuVfBmCuE8SjKeQynBHWf yDA//Rf4lN8RWM6upmuBT0aCKA1uIog= 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 Twelo9z9i5Cc; Mon, 12 Jun 2023 17:05:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1686589544; bh=iI3sumeUQaq1tz9CtWmsfggsFnd9M6EvrVjxwtdM0MI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=N00XqUTFv0qbMoKSk8ph1ucz5CIm0Ey/54kt1ZtzwKao2nOAq6jh8wXzDWt11aOoO pehsrhEr+UCMudZIlyyYgaWrf/J3QrwlDqHr3G/ilYuR1tQjdDUEKviMXvLvlW2baj nkvMuNUl1rp49eUoi1SkE0XxTtLO2Ru+tB99s4gAOSgvfhOatX3SAjGrsrbA7mz3iz CQzLfnMo0AwpG/DVFyD+gjaxPefAjhgNJBmEaPWM8EnCt0yG1LUSERB5pGdyKvhbBG 4q78WQ+lsRTUv+zL/D7l0yNb6+3z8lI8CXfj6CSY42VTZurDw5p2WfKgoj0E+dEhhg cwm1drRyEiI3i234YWi+1eMoQAvfNVVvLfRE36MCjHEwCP4XzVriRZwcMx1N5c6JrA 81FqOoyUgTEK23hlW51rVDQgDnDjSas0Iy/qA1GuojeZd3C1vy7FNF10oogddycZxU ehOLcRIyJbKjcamW1swWeD6CPqhAZuPHo4K+wzu6/Oo1MxXa9ienJHxjEgVA4oenur ppBsTkhviS9RacWXKF2Fe+bZjhtMaAbLOJlT6eqdQbxWRsllOaUcCVY52cGsynmC2e jz2FOwnKlIE9UZfYysm9qUGMmP52JO6NnMmu67e1VCY0MQJOm/3FcH9QSCsk5+Q2a8 0SY9y1/ly6VjJJfNVWidMYm8= Received: from zn.tnic (p200300ea971dc5f0329c23fffea6a903.dip0.t-ipconnect.de [IPv6:2003:ea:971d:c5f0:329c:23ff:fea6:a903]) (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 DCE2240E0035; Mon, 12 Jun 2023 17:05:36 +0000 (UTC) Date: Mon, 12 Jun 2023 19:05:32 +0200 From: Borislav Petkov To: Breno Leitao Cc: pawan.kumar.gupta@linux.intel.com, Thomas Gleixner , paul@paul-moore.com, leit@meta.com, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] cpu/bugs: Disable CPU mitigations at compilation time Message-ID: <20230612170532.GOZIdQXLYZCGKZQFXv@fat_crate.local> References: <20230203120615.1121272-1-leitao@debian.org> <87352z7xld.ffs@tglx> <20230612133230.GJZIcebkHxd8QJs0Dv@fat_crate.local> <20230612135301.GKZIcjPY0xvbNsiVNd@fat_crate.local> <20230612160807.GNZIdC58KQ8IibZjrt@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 12, 2023 at 09:37:07AM -0700, Breno Leitao wrote: > I am not sure if these bugs (MDS, TAA) are speculations related. Pawan > could help us here. "Microarchitectural Data Sampling is a hardware vulnerability which allows unprivileged speculative access..." "TAA is a hardware vulnerability that allows unprivileged speculative access to data which is available in various CPU..." That's all in the tree. Your grep no workie? -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette