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