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 30030C61DA3 for ; Tue, 21 Feb 2023 10:02:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pUPTI-00056g-UY; Tue, 21 Feb 2023 05:02:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pUPTD-000567-H0 for qemu-devel@nongnu.org; Tue, 21 Feb 2023 05:01:59 -0500 Received: from mail-pl1-x62c.google.com ([2607:f8b0:4864:20::62c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pUPTB-0000YX-0M for qemu-devel@nongnu.org; Tue, 21 Feb 2023 05:01:59 -0500 Received: by mail-pl1-x62c.google.com with SMTP id q11so4750328plx.5 for ; Tue, 21 Feb 2023 02:01:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=ID2wM3HB9kWA3khqrfFXEgHQhC/o4a1L9oSoq9Y1Peo=; b=EugatnyQo5GqAlexHTridYaSIi78Htqb+FJ+uTL7Uwth23/7zH/xNivXHv+qf3GaUg ZMaKutSAkInXN9qh+ZqyN5nUzFNcyiy0/8B1hzs7lTNBjOTD4QuU9kOSWkvWo4ZeA06J 29Rxad9gBF446sPo/Asgu+jxpB85HYjIx5HyJgmAbUBC+d7+RHwqFSGkPZ8TDpX488ps yuWpzUYZK5l888X7Gnfj5+Ai/Tb8EoDF/BxX/xbjPGmRMO9OhTsJtvXeHKxBxOasCHxg WPRy7z9W0rZgopJ7t2HxSEz/5gBRsIxr59lZMq5oZysjSen1HJ+c/+UaHXuNEPB8py1T hD4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=ID2wM3HB9kWA3khqrfFXEgHQhC/o4a1L9oSoq9Y1Peo=; b=pcFccmLTAXZJtJ9IpTARwcXzYh36XYKOXKI8nL22S4yiJ69bAlxFO6LJ09iPMv8iAi V5DmmL2hGHxbHLmwaDHyddKVjrCO9GIQUgPcTn6njDMSgyg8Wvz+mQesbscIP7WIfvkw hkHfdIF30fBVnqtEwdQ9uTtSN7Fyu8VTSdIHlYO8o//h4hAUOTwCLLXJwFuPhhx35zjG EF2v+XGH995EnY6yRx95ZcIcUJtY3PP6GXhefyy+Ca5XCyYAz5KkOy6rrCmCdYc1X4vJ 1R3pbOF/Z1mg0jC6SFwg/g1JB84WqahfWgaIvNqFpZPOK0Dhy+Jrg9Rdx+3o8tI5SueA t3mg== X-Gm-Message-State: AO0yUKUhf1CT01394nrFiGUwRRWn2Z26fEIMinq8kwEidr2LV50MFLBO CIihpZB8VD9z32Vv2XYmBoMsqg== X-Google-Smtp-Source: AK7set/jJqHs7OfwOp9oVVyXoWtAF1BaJkmCCYNnr77c1br8sFbuLEOchzl9AVagAnjm2INVy6kryA== X-Received: by 2002:a05:6a20:6a0e:b0:c7:6c6f:76f5 with SMTP id p14-20020a056a206a0e00b000c76c6f76f5mr4283426pzk.51.1676973714407; Tue, 21 Feb 2023 02:01:54 -0800 (PST) Received: from [192.168.6.128] (rrcs-173-198-77-218.west.biz.rr.com. [173.198.77.218]) by smtp.gmail.com with ESMTPSA id b2-20020a170902ed0200b0019c919bccf8sm1150953pld.86.2023.02.21.02.01.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Feb 2023 02:01:53 -0800 (PST) Message-ID: Date: Tue, 21 Feb 2023 00:01:50 -1000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH v2 07/21] include/exec/memattrs: Add two bits of space to MemTxAttrs To: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, Peter Maydell References: <20230220232626.429947-1-richard.henderson@linaro.org> <20230220232626.429947-8-richard.henderson@linaro.org> Content-Language: en-US From: Richard Henderson In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62c.google.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 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, NICE_REPLY_A=-0.09, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On 2/20/23 21:56, Philippe Mathieu-Daudé wrote: > 'secure' & 'user' seem mutually exclusive. If we get short in bits, > they could be shared. They are not. ARM has Secure EL0, or secure user mode. r~