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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8B696C7EE2F for ; Mon, 12 Jun 2023 16:08:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231352AbjFLQIh (ORCPT ); Mon, 12 Jun 2023 12:08:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229513AbjFLQI3 (ORCPT ); Mon, 12 Jun 2023 12:08:29 -0400 Received: from mail.skyhub.de (mail.skyhub.de [IPv6:2a01:4f8:190:11c2::b:1457]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 424CC19D for ; Mon, 12 Jun 2023 09:08:19 -0700 (PDT) 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 mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 45E8D1EC072D; Mon, 12 Jun 2023 18:08:17 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=dkim; t=1686586097; 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=zrbsNxDnJRtTxc6c9QhYYJ2Bz3vlWauuasGnY6lhGN0=; b=SnepkEK/854n1WRAhIIJdcoJiJpWCatl5E2vHwPg3Dbq8r1bjR/3ByGQLafEmgGVMuzP2q SqmbLc4CYQfmZvVVLbpNVgIU13FbczKNes3y5pyJc/tIHUmUrrrD7CQ1sGTjucjBqke6ty QG8DQ3STLbZ5rUS4fDcT6Gp1EB1hhY4= 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 exUKiuxAec4K; Mon, 12 Jun 2023 16:08:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1686586095; bh=zrbsNxDnJRtTxc6c9QhYYJ2Bz3vlWauuasGnY6lhGN0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=cWEqEHu/YjaFqfs1wPsnotJYCXGKwcxXL8FFlacICirBtm0JOmEAcQsshWY0IOjqq qtTrYrDTFv2Ai9k+PZJZge+PVbNilCJC2/VLmbW2ju99K5cB67esvTtqsCnX4iEL31 5AN85imAnhrWfZ/Ri1NJcDcPnQdtrV90rEVbyHGLQ/S89h29WtW4NmXfoAapHKOFKd BhTv6iducRQZrCy6fY14h3PNxEbweXm56NjLk5pNSMEGm8g7ofqs2T9wdha2IvF03A FeiNzN8vOW+syS5gYkjBDnqMvd1aLCqCwiIJnocp2ez4NSdtYJK/JRkrFiUBL1myS1 FbLqIWbtdhaSNX424Yzqa0Q6RFnkMJUK/MTc0kgVVxyUoO5cv8Jfjke+kKGbACX+oA zMfnwG9jCTl6QmFaeBldO5SzrlbC2XD3uGF+1MPMAECfYXEZWN+c4pItP7TREN6Hmt aY+iNXg3bHgnwC1bzuzdPDWg2+jpRNF7b4bsLq5kBLx04sgpBaPl7VVa9OLn5gSFAz ZOAWKElvl+KoHKLX2I1Q5cl1HDxCBoUiQhCNqanHmeDVoDyL8EGmY/2jre/3irt0ei gTpRMY+ycBnnesibhmgnTeaRcWO60CWIQHw7qQiGLlIuE2nQ+vBjtrytIQAukG0x0+ Eiaf64bvmwG7ALBnwgkMwYNE= 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 11C6E40E01E2; Mon, 12 Jun 2023 16:08:08 +0000 (UTC) Date: Mon, 12 Jun 2023 18:08:07 +0200 From: Borislav Petkov To: Breno Leitao Cc: Thomas Gleixner , pawan.kumar.gupta@linux.intel.com, 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: <20230612160807.GNZIdC58KQ8IibZjrt@fat_crate.local> References: <20230203120615.1121272-1-leitao@debian.org> <87352z7xld.ffs@tglx> <20230612133230.GJZIcebkHxd8QJs0Dv@fat_crate.local> <20230612135301.GKZIcjPY0xvbNsiVNd@fat_crate.local> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 12, 2023 at 07:16:18AM -0700, Breno Leitao wrote: > Sorry, to waht menu specifically? CONFIG_SPECULATION_MITIGATIONS It even has the proper text in there, warning people. menuconfig SPECULATION_MITIGATIONS bool "Mitigations for speculative execution vulnerabilities" default y help Say Y here to enable options which enable mitigations for speculative execution hardware vulnerabilities. If you say N, all mitigations will be disabled. You really should know what you are doing to say so. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette