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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E9555C433EF for ; Tue, 14 Dec 2021 14:35:02 +0000 (UTC) Received: from localhost ([::1]:32802 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mx8tR-00066h-Ez for qemu-devel@archiver.kernel.org; Tue, 14 Dec 2021 09:35:01 -0500 Received: from eggs.gnu.org ([209.51.188.92]:41602) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mx8sn-0005Gl-Kv for qemu-devel@nongnu.org; Tue, 14 Dec 2021 09:34:21 -0500 Received: from [2a00:1450:4864:20::52f] (port=40837 helo=mail-ed1-x52f.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1mx8sm-0005yV-3o for qemu-devel@nongnu.org; Tue, 14 Dec 2021 09:34:21 -0500 Received: by mail-ed1-x52f.google.com with SMTP id r25so63133974edq.7 for ; Tue, 14 Dec 2021 06:34:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=references:user-agent:from:to:cc:subject:date:in-reply-to :message-id:mime-version:content-transfer-encoding; bh=wzhoHe2yIViMpFVxwpjFXu4RoD17jqcz3vpqseJuhgU=; b=syv4nJUMuxOn91HA1NzyaUO9ngEFsIQZWF6mMLBwWIt8rZWOPbI26RkYwyVk/Ri2Nx PpCzGku9QdI3/020sepsv3pUWPqdzpl46h3kRRIjjov/Hxs5xTJMPDLdkCC+gV4GIqUM voQf8Q8Zpz4TCVHi4DDUvACRSCBSzazYy1jfBeVCmt6onir2o960EVDiBdJv10v/iR9w +sslaCZPMMUFJqcaSyEBIyfwdO4VZEDBdWiOx9XeB/SH0k5Zjp92GjzEhQjJk7ZQsln/ scXTZaAG0oKIhurOsix1HMogVr1TUfAKQUojx3cchYS+er+lIm8u5DW0HgvJh37Qh30t PpXA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:references:user-agent:from:to:cc:subject:date :in-reply-to:message-id:mime-version:content-transfer-encoding; bh=wzhoHe2yIViMpFVxwpjFXu4RoD17jqcz3vpqseJuhgU=; b=EzBvPVpYZ36N+eQNYFzNafno3R37t+51ojp4eW5ifeW85v8W/0aOx6rhs7rMaFkWxz d81Fp/+povdzSQA74j4hTowPkLkBMKKsnhXnW2VXynNw1OAylWZG35gq0jKC/47lhaiA fkQF6KJ4jKqipQlLtI8cVsMQQl/nIInkeHWdhlnOGIzrR+xI+4fCMcVfoBpm+f1cixDQ +K0KcyUZeURqu6JVyRYIZ7knQ9F13VTa65/Huq8yfIk/bJhZNHvOBKy5x3tcOGSsgIWM rKkTT/NG8ETswV3n3AOyWB0McKscvtU4og4YEZ4l+jCgUj/IfEtPrwKs2eeYyPJfMnkz dUtQ== X-Gm-Message-State: AOAM5313jhp7HGOO4kQMTZZNB6OAH9R7zrGEbiUK/DIzhV+wr1VCu5po PgEJt60XZO5vQZTVKF3sZtyRxA== X-Google-Smtp-Source: ABdhPJzXVj1POZgbOi/zDQb/JLDoOIAktev5yvYKqo99scxuhdVjMn7wSBWUuIollW8RoJ9BzwLe4g== X-Received: by 2002:a05:6402:50c7:: with SMTP id h7mr8347372edb.277.1639492456181; Tue, 14 Dec 2021 06:34:16 -0800 (PST) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id n10sm3892646edx.3.2021.12.14.06.34.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Dec 2021 06:34:15 -0800 (PST) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 9FF9F1FF96; Tue, 14 Dec 2021 14:34:14 +0000 (GMT) References: <20211208231154.392029-1-richard.henderson@linaro.org> <20211208231154.392029-2-richard.henderson@linaro.org> User-agent: mu4e 1.7.5; emacs 28.0.90 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: Richard Henderson Subject: Re: [PATCH 1/6] target/arm: Fault on invalid TCR_ELx.TxSZ Date: Tue, 14 Dec 2021 14:34:10 +0000 In-reply-to: <20211208231154.392029-2-richard.henderson@linaro.org> Message-ID: <87fsqvi7bt.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::52f (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::52f; envelope-from=alex.bennee@linaro.org; helo=mail-ed1-x52f.google.com X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Richard Henderson writes: > Without FEAT_LVA, the behaviour of programming an invalid value > is IMPLEMENTATION DEFINED. With FEAT_LVA, programming an invalid > minimum value requires a Translation fault. > > It is most self-consistent to choose to generate the fault always. > > Signed-off-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e --=20 Alex Benn=C3=A9e