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([187.210.107.185]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-2efd50b1bd3sm3785013fac.28.2025.07.02.05.22.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Jul 2025 05:22:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1751458937; x=1752063737; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=AwerfD7lvNQJ4EdbSgApiW5S0oCtGzIs48Se4MUlJ1U=; b=KWPeJsbRT4SYqU+KelMFd5b42241vvQYmQEAVKucqKnoaZ83VO7ndN3zjOmeUMDUzg PSAopbnfIIVsNzQJoVbGPGmiatC9XaitR6ZXvDeJ0UMcR8B1dXBx5ilzuIGJVPQwMjSB Tq5BHzQGcvybgFxVKTD8L6nNW9aaAwLAYNkPvNmp5z3LgGmtiOV826aQfvIu6I/0JylC iMu1tJr8beftpufg2kyAqDwsbxJ4U1hMOBivkitd5dhXqn0UuunvAyqTyEczrjeDFWlK 3Ez/zCNAvQL5fjipS/wMjpOvASqfVVuIusf6iTuhaI3/eOntk7L/Aq9F7Oeqgd467VWO u65A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751458937; x=1752063737; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=AwerfD7lvNQJ4EdbSgApiW5S0oCtGzIs48Se4MUlJ1U=; b=cz4R3s+NZ5r+dW2L3xMabi8EE3ORAXp52xl95tk5Z8lEAe9ltphWWh4SQAUmB7vgBS +9q3Rdjp+F1onN58tuAILhikpmKqTrSWdTQ4W97ZCsYQ7ziFMFmV/VJvZO2T/XcDXra+ RhrLfB8JVIhNk/JG1Uje1POgD8+zjFAKNU5lFXl7bPxmGrU0pNSxP8FIxOSAUbVdguAd 2gTxXn6jid+O+HH/ClyKIiZC/OvMrFFMAEIEbDbWwk29Fu1YjQXSJiJ3rPdqZiYcdjce fGfRAtWYUdlM05FB/hsoeZxdeBzCWXYNC9Tr0xyBNImS/SX3w3MuoVZr4ufZMQ5qndIv pL7g== X-Gm-Message-State: AOJu0YyzpxdfrZhXybyFiWvf1eieuAddHYLKXC5rCqS6Zk3IUbCGv5K8 JjtHfPM3avmw5uhoLScKcLsKmo5KXna/PonQ7Dcn3s5XdmkDCDQexs8IRLxAaR0+9Vg71sN18Bd vWxmNfC0= X-Gm-Gg: ASbGncte4rSnz+7KdnBpojfEzz4bXBX+tE4JTHznMiGZJxZ+IPZhml9sJ8wr0RUwa1b T4phuyJYrZgCX5AK6SLZjpxt3J9E2Ma9Ao/B+YSYzg9FDJy99lxTOJpp1djxnFDxlMnYtx5cUBh vdpUg8HZNwdBQG+qEmWy3LRm2IXAzXMkTwWLwObVFRun7cZuZ/wrgN85qTHbA7RczEo8DC3wpxF /iAluMc9MTrpnqYa+yH4KLHNVMTdYyjFQF6nyFE9LVVtwFbrNe2dK+9/x1Rog5L6ASiiNlKRIE1 /TCcm1qwTFSQ5yakHvk9L+WXZwaz2lWF2TatRUnvlFeSOmFEumg9Wamj9UwVD3twAR2++A== X-Google-Smtp-Source: AGHT+IHBp4nid14igLYfJtGI2OjNOtO5XYtlxrrR6pPSyWNUBYcRj0jTmGNalyLQzF3KUPCtjS0Hfw== X-Received: by 2002:a05:6870:f68f:b0:2ea:fb40:231c with SMTP id 586e51a60fabf-2f5c7cc0bd1mr1974079fac.27.1751458936914; Wed, 02 Jul 2025 05:22:16 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org, peter.maydell@linaro.org, qemu-stable@nongnu.org Subject: [PATCH v3 01/10] target/arm: Fix SME vs AdvSIMD exception priority Date: Wed, 2 Jul 2025 06:22:04 -0600 Message-ID: <20250702122213.758588-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250702122213.758588-1-richard.henderson@linaro.org> References: <20250702122213.758588-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2001:4860:4864:20::34; envelope-from=richard.henderson@linaro.org; helo=mail-oa1-x34.google.com X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1751459011616116600 Content-Type: text/plain; charset="utf-8" We failed to raise an exception when sme_excp_el =3D=3D 0 and fp_excp_el =3D=3D 1. Cc: qemu-stable@nongnu.org Fixes: 3d74825f4d6 ("target/arm: Add SME enablement checks") Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index ac80f572a2..bb49a2ce90 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -1494,7 +1494,8 @@ bool sme_enabled_check(DisasContext *s) * to be zero when fp_excp_el has priority. This is because we need * sme_excp_el by itself for cpregs access checks. */ - if (!s->fp_excp_el || s->sme_excp_el < s->fp_excp_el) { + if (s->sme_excp_el + && (!s->fp_excp_el || s->sme_excp_el <=3D s->fp_excp_el)) { bool ret =3D sme_access_check(s); s->fp_access_checked =3D (ret ? 1 : -1); return ret; --=20 2.43.0