40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
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From a113ddc33b432c8b4d21160dccb54ba19580ab01 Mon Sep 17 00:00:00 2001
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From: Gao Jiazhen <gaojiazhen_yewu@cmss.chinamobile.com>
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Date: Thu, 12 Sep 2024 11:22:56 +0800
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Subject: [PATCH] target/arm: Disable SVE extensions when SVE is disabled
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cherry picked from commit daf9748ac002ec35258e5986b6257961fd04b565
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Cc: qemu-stable@nongnu.org
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Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2304
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Reported-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
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Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
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Message-id: 20240526204551.553282-1-richard.henderson@linaro.org
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Gao Jiazhen <gaojiazhen_yewu@cmss.chinamobile.com>
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---
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target/arm/cpu64.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
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index 5d28838175..6eca55ac29 100644
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--- a/target/arm/cpu64.c
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+++ b/target/arm/cpu64.c
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@@ -110,6 +110,11 @@ void arm_cpu_sve_finalize(ARMCPU *cpu, Error **errp)
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*/
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if (!cpu_isar_feature(aa64_sve, cpu)) {
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/* SVE is disabled and so are all vector lengths. Good. */
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+ /*
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+ * SVE is disabled and so are all vector lengths. Good.
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+ * Disable all SVE extensions as well.
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+ */
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+ cpu->isar.id_aa64zfr0 = 0;
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return;
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}
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--
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2.41.0.windows.1
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