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[81.2.115.145]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48066c42895sm478054495e9.14.2026.02.02.05.34.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Feb 2026 05:34:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1770039244; x=1770644044; 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=56LjXDb4PPVvm50DRB3MZU7UUhroOyPSOJBt/6QB3aQ=; b=P9Vt8Vty9g9MF+eMuuYPjMbPWHEDdRNVLnrjnK/Y9bhAmQsECpWqmKySFh8T4L2LJq byFiJN5iar0FOKLRCw0836jfmxdCQxdb/65V/uHstxOUN4MJtWS83na8nWO2+gjHOvkZ 9KLtiqINMSCssbyIewRBREBFDMPQFhL9jldrmvS1AEk5q739H/QybuISjMWg3Y6oilTb 4YLr6LZ19zn1lAaJTgrE1XzOzVf9XoJw8Op6mHSiKR5xQnsjmPiM46N6A6ECfAIXjxna u18vjezGbzPJ7mFLIctb1MLbRhI6WGH6pPF1b+XQLk+jnXh2ruioeVJ79HYzofLbyNIe ngxg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1770039244; x=1770644044; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=56LjXDb4PPVvm50DRB3MZU7UUhroOyPSOJBt/6QB3aQ=; b=aYa7fyKtbea9osMaAuNJDfb8+3UczVBqFzk1Yrl6kr4YhBz7Cvl9zTXlS6OHJCWSdT mn3qQIqB9K+DOnyAaWjP8THCgAEsBCN+Otb25xcd+9oxbl3t5ui319AoI9w9WpwYcNiO sY/mbGBYGLuqfO9jNJkDaZNOA6KO0+2JIHnclhFgZCaaxNRd4epGeWCFo7vGXVrrhWGn 4yFi5hLK651HFAF1z9GX7A/6t9MML+uIZfK3Q+lLpuEgdnCNE4eYrJJPR4nNQtxsEQNx fOjl/arNzw1fCrPRWye1gl7XryJQLK71sXIaNzUIb2N2nOaVBnTMnHFvLVFXpxF+ZNYN BwXQ== X-Forwarded-Encrypted: i=1; AJvYcCWY98WY3NyI/bz2I5uRJKFCBOgoQ8MT27O+Drq4nFfL2tN8JCtQhxU8l2nZOh0cwbKe9x2YumNF/Ols@nongnu.org X-Gm-Message-State: AOJu0YxdowMilBSArHvQdyLIEwskxFdDObC31CjKF2ikCwhpHlChIL0z xYbJzCVv9wbPqyWCUjbx6paw1y6RHQu3RO4O7CQMeN+DqyQfO/MfNYpilslhg0vTVks= X-Gm-Gg: AZuq6aIt0leFqnLRqbesR+DEonOtrVEyK1GVTg04kegbvvgBLd00O/Na5xLdqXYEicM zLsDgFbllFIIDfQvVK4PI9cp7Q1psNYXJPzmH4YiU2yYvfZnCA9q+RvG5zwidpG/vcDem3eCFcf N1DVzqjgarLLT+uGF/k/G+35A+y8YoHozJ1l+EMly6HrRhkheSoqh5Qw1GjIi8DkgVZo0zkuMdA sPulih8AFJ/5QlWNM//ubDil5/8lMmGjXgXqUS0jg8UTTlc9nIrz4HFr8giwJfo3UJcv2LyuYCj 31TtB/gEdaXvK0/ObybwjydLPrgmmvS/5GrjYHMFpECJW4l7u/z0kr6oY+DQpZghkt/kYtMp3Ux RrWVDhcz/ArCURk7GWoPdDJFCyXhlcfhEutkUpK/x7JxzJRH9D5uveJlk8nN+zSfbQBCKnbe6rB d3PWn2DuJl5YGdnchSTJMTsSy0ypWM4w== X-Received: by 2002:a05:600c:6206:b0:47e:e970:b4e4 with SMTP id 5b1f17b1804b1-482db48e90emr139415455e9.29.1770039243795; Mon, 02 Feb 2026 05:34:03 -0800 (PST) From: Peter Maydell To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Richard Henderson , Manos Pitsidianakis , =?UTF-8?q?Alex=20Benn=C3=A9e?= Subject: [PATCH v3 07/15] target/arm: Handle SME-without-SVE on change of EL Date: Mon, 2 Feb 2026 13:33:45 +0000 Message-ID: <20260202133353.2231685-8-peter.maydell@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260202133353.2231685-1-peter.maydell@linaro.org> References: <20260202133353.2231685-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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=2a00:1450:4864:20::331; envelope-from=peter.maydell@linaro.org; helo=mail-wm1-x331.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: qemu development 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: 1770039434454154100 aarch64_sve_change_el() currently assumes that SME implies SVE, and will return without doing anything if SVE is not implemented, skipping a possible requirement to change the vector register state because the SME vector length has changed. Update it to handle SME also. Reviewed-by: Richard Henderson Reviewed-by: Alex Benn=C3=A9e Signed-off-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- target/arm/helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target/arm/helper.c b/target/arm/helper.c index e4a6ff17b1..390ea32c21 100644 --- a/target/arm/helper.c +++ b/target/arm/helper.c @@ -10130,8 +10130,8 @@ void aarch64_sve_change_el(CPUARMState *env, int ol= d_el, int old_len, new_len; bool old_a64, new_a64, sm; =20 - /* Nothing to do if no SVE. */ - if (!cpu_isar_feature(aa64_sve, cpu)) { + /* Nothing to do if no SVE or SME. */ + if (!cpu_isar_feature(aa64_sve, cpu) && !cpu_isar_feature(aa64_sme, cp= u)) { return; } =20 --=20 2.43.0