Received: by 2002:a05:6a10:9afc:0:0:0:0 with SMTP id t28csp730182pxm; Fri, 25 Feb 2022 18:33:19 -0800 (PST) X-Google-Smtp-Source: ABdhPJw801mn/A9N6E+ArWZwm+rLPOaK393EZbW2jaz5/yb4ZYBFB9HeOxq3FdfmVbP9tTPNQBzY X-Received: by 2002:a05:6a00:198f:b0:4e1:abfd:43cc with SMTP id d15-20020a056a00198f00b004e1abfd43ccmr10454458pfl.20.1645842798853; Fri, 25 Feb 2022 18:33:18 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1645842798; cv=none; d=google.com; s=arc-20160816; b=VWmwZ8P4AECMkNaBDiepoWKbWc/4fIgvvaL+PdLdNHdTed7CWTB5VOi9MEg/VtCEzb kq1WXBdEZbsh0xAbkhnKmTzK9qWVDaY4+qrVrMDRQ7l0o9A6NM0I9hADLfg1BmhiZH4H xz/+nk/LyQUTnC6WMFMlfmhFihWtP0DAHN6RGVaNo5K160ob45SvRVIIn557R3pLU3/3 RCyO+QpOc8rnLl3NUsepdK//tapt8vMRg0IQVbZkrdmwd2iGXUi3KcZIYVGQEjwpvGWf BBV3O3zfUe99I1QE39QVLpjRFlGSznQRDsL2ZizADMpW/XV10Z55+8dTI0exsSjMRQRe Bxcw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:message-id:references :in-reply-to:subject:cc:to:from:date:mime-version; bh=Z9lkaGg2BmJdi6J3MXpxTAVJ3R8u2cbdupQuG/YL1fU=; b=kQ0BEycY+sm6SLMoR8dpvJU5UAcV38mc0vTf2OIs1bktx8B/ULKms14AgxwbnOq+EL YRxy/EIQldSZgG7bzbUCZBiU3ADGxGr5FBqh2vECLr8LQq7xptszTxWP3AW3xn8L6ia5 2xPAZ2/BYsc8OZmJaAf16r1kpeAfyYuq4pyge/jcEdXujkZFL5zCUy8SOF0X+M/icX6n 7fz2sV6jTVwNmWCi3gl+OOnnlfbhNrj8dUAO5q+NWqNp1GCVodg2rPtC/Qnu9I9swjT7 clIxN0FI/Xa8bnViI7Duif9tjp7h7180khiHPoSiNt//UdURyoY3FrKYeB2x0IhyNWl4 XacA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [2620:137:e000::1:18]) by mx.google.com with ESMTPS id bc2-20020a170902930200b0014fcd34ea5csi3236519plb.468.2022.02.25.18.33.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Feb 2022 18:33:18 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1A9E52EF15A; Fri, 25 Feb 2022 17:59:42 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234026AbiBZAad (ORCPT + 99 others); Fri, 25 Feb 2022 19:30:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229484AbiBZAac (ORCPT ); Fri, 25 Feb 2022 19:30:32 -0500 Received: from relay7-d.mail.gandi.net (relay7-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA0C0517C8 for ; Fri, 25 Feb 2022 16:29:57 -0800 (PST) Received: (Authenticated sender: joao@overdrivepizza.com) by mail.gandi.net (Postfix) with ESMTPA id 0B58720003; Sat, 26 Feb 2022 00:29:49 +0000 (UTC) MIME-Version: 1.0 Date: Fri, 25 Feb 2022 16:29:49 -0800 From: Joao Moreira To: Nathan Chancellor Cc: Kees Cook , Peter Zijlstra , x86@kernel.org, hjl.tools@gmail.com, jpoimboe@redhat.com, andrew.cooper3@citrix.com, linux-kernel@vger.kernel.org, ndesaulniers@google.com, samitolvanen@google.com, mark.rutland@arm.com, alyssa.milburn@intel.com, mbenes@suse.cz, rostedt@goodmis.org, mhiramat@kernel.org, alexei.starovoitov@gmail.com, llvm@lists.linux.dev Subject: Re: [PATCH v2 05/39] x86: Base IBT bits In-Reply-To: References: <20220224145138.952963315@infradead.org> <20220224151322.307406918@infradead.org> <202202241627.EEF3D5D2@keescook> Message-ID: <605731324a76f36aafa87bd9390808c3@overdrivepizza.com> X-Sender: joao@overdrivepizza.com Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RDNS_NONE, SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no 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 > https://github.com/ClangBuiltLinux/linux/issues/1606 Candidate fix: https://reviews.llvm.org/D120600