From nobody Sat Nov 15 16:44:10 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1750628191; cv=none; d=zohomail.com; s=zohoarc; b=UFfIGTLeBdAhjsJXmsc9Sr4FDCAyyFuSmkvyQLADp6JgiFhhsiZUejfg1UYC7TN+e+0McmOnHq3icqeAOixqXMW39TFvajVskTIRINGONiobaXPX5oums4qqGOT9AIPV3VcqRRFcVhkAfTs+SHdtAGiEF1XQz6sJTVxRM72npDU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1750628191; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=86Re1mOlDXK3rV70IB71Kb0iZF4aZZETKbM675Pw+4M=; b=Hef0LvliP8TezvtGqNNJc5DlJkUtQQt1lT3islMtWGkEvR99fErIO7jdzpHNn2iuCitIH0vHb5YWMl1Vn5DTAMXuVtryeRqA3TSP3LgD4Ag5h+gt25N0z3twCvPV+zrPdWA/sSrgzQI9cOWGOO+As8Xnef28GVqFMXtwkgKfhOY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1750628191404955.6248664905817; Sun, 22 Jun 2025 14:36:31 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uTSLR-0007SV-O6; Sun, 22 Jun 2025 17:35:21 -0400 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 1uTSLM-0007RS-N2 for qemu-devel@nongnu.org; Sun, 22 Jun 2025 17:35:17 -0400 Received: from mail-pf1-x430.google.com ([2607:f8b0:4864:20::430]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1uTSLL-00058x-6S for qemu-devel@nongnu.org; Sun, 22 Jun 2025 17:35:16 -0400 Received: by mail-pf1-x430.google.com with SMTP id d2e1a72fcca58-747fba9f962so2598667b3a.0 for ; Sun, 22 Jun 2025 14:35:13 -0700 (PDT) Received: from stoup.. (174-21-67-243.tukw.qwest.net. [174.21.67.243]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7490a69f3e2sm6479842b3a.159.2025.06.22.14.35.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Jun 2025 14:35:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1750628111; x=1751232911; 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=86Re1mOlDXK3rV70IB71Kb0iZF4aZZETKbM675Pw+4M=; b=XitLb92pwHXvG+bscnt5Wrvn60ZHrYhNGplQx20GfZaQJ995BmyZHUmhd3wp1LPAsN ZDq+CVRkoMimPNDoMUGN295hSS6X/hYlKFckO/hliov43OvT+OoqzReEEc9iT02ZKxxJ V8WbzX8IR3xuWNo+0ee/1IK3nBmpuR/UwsqQFqITy2ZsjbQYNwevr8vQklOrY9buV5Ea vJTV7f1aM+D71Y/qRO8xE/vWa5atdgrAmaDnymlzMNXBmgGjEdkFCtHvRNmzgGp/gG65 WsttyRCDRT0orBSeRolnZR2p2C7HMEQWVVojLhIbyoLFIW91vCfluGSPHbmQoDSiXy35 Lphw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750628111; x=1751232911; 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=86Re1mOlDXK3rV70IB71Kb0iZF4aZZETKbM675Pw+4M=; b=i80QCJCFhY88hW/czB0x5NNlMM6xK0cqsf4WW4P46iDY7KflPZZClBeDqkvoi3wLfw wsQ37+3WAw0NjOoLYP0dlcwvR1X7rPAD70CwGqGFjU2tpjNNiQFhTzbS73cL1rEfTVbe ufe8rHUyRJ+fnRZRUIdOPr+m677oAqtPOgbgBp5wLaFZHm9klSc+C065Y/0E4CaashiU KHGq34L4Nm1Fu4Ro9Fzozd639IEj79nISXOP6hxBC/BCf8w4ve2aCjg2sapC5Zu21EKI k4iJQnw/g071ObJc4kB5qGDH1n5eR5IHS84B4oAjT9C9f2tJSs7fB63ujlszLPbQUk39 rAxA== X-Gm-Message-State: AOJu0YzqUgLtFdJucS5d5ZUIhjOOwdjLBOntDgMI2bNwkTA7/YB5THBd r4XTXA6iHtguXZVosM2PW4YurjOp/82eTOJF3PPu/95Y3aJ8a7sn/SkZq6WcvsKXNckwjL+Cp89 GbySRpFw= X-Gm-Gg: ASbGncv92Wgaq5cbORs6H7BMfrlSlyJvD/cxQjRAGYa4OrqiW3mhhrvEFGYM2bHiofi wXcHPHq5oa6BqlJ1+MjjfuJnGgKsZdmsZgXXRf4LRs3suKVeFhJXnpEKrmlW+Wlc10hsvmT3PGM DZ73Qnoj1vueIsSMr0Exs/LjAk8PdTytlWeDZL6wQ7/wWL/Q2wUM44/njzINIgx+CDT6WbfIAHv ixH3yw3CEDdCG30iIDPVoeYFw5cSkfXltvxTS2jaSZnr9g8leGB25aVAIlXzlqHnJeI32E3Njua beLfJRwVx+gEIpQtw3lhip35srU4+GDk+KdFj1knCm4VRFfDZKUp2ZfLNOFPkF4/mDhfFBzO8UR YErwO90dlGfS54aIlMa/Y X-Google-Smtp-Source: AGHT+IGWXn0tGx9ZkmlFvyWLXoZCfFvDJnw8XWdMy/mjGHhIuCfgqEaBqBu/W6eQM25EonSY7kXxyg== X-Received: by 2002:a05:6a00:1393:b0:736:9f2e:1357 with SMTP id d2e1a72fcca58-7490f592146mr13183724b3a.12.1750628111021; Sun, 22 Jun 2025 14:35:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org Subject: [PATCH v2 1/3] target/arm: Fix SME vs AdvSIMD exception priority Date: Sun, 22 Jun 2025 14:35:07 -0700 Message-ID: <20250622213509.277798-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250622213509.277798-1-richard.henderson@linaro.org> References: <20250622213509.277798-1-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=2607:f8b0:4864:20::430; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x430.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1750628193305116600 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") Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- 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