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 95932C0218A for ; Sat, 1 Feb 2025 07:32:17 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1te7yJ-00059N-6j; Sat, 01 Feb 2025 02:31:19 -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 1te7yF-000553-T7 for qemu-devel@nongnu.org; Sat, 01 Feb 2025 02:31:17 -0500 Received: from mail-wm1-x333.google.com ([2a00:1450:4864:20::333]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1te7yD-00026e-If for qemu-devel@nongnu.org; Sat, 01 Feb 2025 02:31:14 -0500 Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-436202dd7f6so31622705e9.0 for ; Fri, 31 Jan 2025 23:31:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1738395072; x=1738999872; darn=nongnu.org; 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=/WhZsq896KEikgXl3hrYIDN1TZJxEljMBSUI/at75Is=; b=JjgtuKQqFDSfD5v9mwlJpep6p/ylYekYzil7FGLSHNOsh3uY2FKa9bM5V6qdUMEk59 CPn9LF13w2HCOgCfebUlcDyDyDj+SmmhHiRYbpDUa/6YmcA/sdMSia/VbrePjNod9Bc7 d+0lv5n/bwaAywUpf/4hyi/dsINJpxr6v56Ub+p4dC50AV3ChgSkbzihjfj3p0ufRc+N KImOKdojGbxQ4MJf4hmSomS+IYz0LaJZZGhWJaK2wd5QQt435Aaf4rmYzzhvE7XMDoHp vXy4CsqQy/Lcpu4ct0hoAFWBJvbPaW1EjrXW31Y5AdFcZ6+C58WbPhyOvO1RBQcZrOzZ pGiQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738395072; x=1738999872; 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=/WhZsq896KEikgXl3hrYIDN1TZJxEljMBSUI/at75Is=; b=HOjzP2WgSsV+dZ7IlYwsi81c9fTUkdgcTx5Z8FcLG5IcydPkz4xhYA3atEooPl/YNQ 35F9/D2Qk+eU/H6wo+DNN4vLQXIzOelYbXJATy22hcCz3RpxD3Nty4+zvn+yjqn89Q5J GE2jqBVhILDo361uwqx67j5HdNZS8F3q3NGjy+tHnbHpqhoIfaTSDWAi5No3oteock9M tlpIdyVzGSozyOZnZQ5zP1JhOfSjViwtO7PfI8Urq4p2cvgY7K+FqucYajiqgGK1pi3R SdXOz5cfaMeipbF7dQEkhW0xUTXAZQHGlNg1xej/R5iL0Ra/+JrcxUO/TM7E5Y0pIEy0 jy4w== X-Forwarded-Encrypted: i=1; AJvYcCVVEaJK/xmY3xeR+k6Spa86OxAybKH9to8k77QXVoPv3cy0H6So3b6zTeBpGeluUjxnGmlCWJRKfp0T@nongnu.org X-Gm-Message-State: AOJu0YzHEU1rQl6URfe8skH5hZkQyFMSPMUMcEN4vXeoPVnelDZXwpG6 0YIG8rKWyd9Zd7tjT66XzBElSR8+D8LMClVph7QNsEGmEF9qPWTNCGye83sm+sg= X-Gm-Gg: ASbGncuH8k+Dm+SAVGyoS/xIRMVPqPPAmoXIiZRERLqmFEn8ovUtDI5UjaiByBB2o4a M+e99O6q1nivQHSdr3kZn6bFvOjoDUiCmlIIdpg0lA5U/WUmZxARXykBj/cPfI8ELtNaFkiFM5c rlTqQkudRclsT7sxyKZ6P5xjAksNvTDlp2Ka/XJ0uLszNAKqcRY/AVHC/4mV4IE2Gb6yxXYMWlu mzAHICbML9sEB++rYHd5Gt2NzMkodvS4MP3EECUE5gH9uWOr+m75sPH8b4sanzWW7fonNyttl9V ogOZ+LUZ4th2/LKZd7Mcrz8kSXms X-Google-Smtp-Source: AGHT+IGjabXuScDPjcoDKpFrRUYnVXvwEh04prGOGfnHkHtIytvXzcm1iOH3aPHCt1Go52whE58Agw== X-Received: by 2002:a05:600c:1c1a:b0:434:f9c4:a850 with SMTP id 5b1f17b1804b1-438dc3c4623mr138572325e9.10.1738395071810; Fri, 31 Jan 2025 23:31:11 -0800 (PST) Received: from [10.1.1.154] ([45.93.146.194]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-438e23d4456sm80051125e9.7.2025.01.31.23.31.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 31 Jan 2025 23:31:11 -0800 (PST) Message-ID: <5272691c-9bda-4f9a-a79b-88d8d3d7c7a4@linaro.org> Date: Sat, 1 Feb 2025 08:31:10 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 11/14] target/arm: Use TRAP_UNCATEGORIZED for XScale CPAR traps To: Peter Maydell , qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: =?UTF-8?Q?Alex_Benn=C3=A9e?= References: <20250130182309.717346-1-peter.maydell@linaro.org> <20250130182309.717346-12-peter.maydell@linaro.org> Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20250130182309.717346-12-peter.maydell@linaro.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::333; envelope-from=philmd@linaro.org; helo=mail-wm1-x333.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, 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 30/1/25 19:23, Peter Maydell wrote: > On XScale CPUs, there is no EL2 or AArch64, so no syndrome register. > These traps are just UNDEFs in the traditional AArch32 sense, so > CP_ACCESS_TRAP_UNCATEGORIZED is more accurate than CP_ACCESS_TRAP. > This has no visible behavioural change, because the guest doesn't > have a way to see the syndrome value we generate. > > Signed-off-by: Peter Maydell > --- > target/arm/tcg/op_helper.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Reviewed-by: Philippe Mathieu-Daudé