target/arm: Only set ZEN in reset if SVE present
There's no reason to set CPACR_EL1.ZEN if SVE disabled. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220708151540.18136-44-richard.henderson@linaro.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -204,11 +204,10 @@ static void arm_cpu_reset(DeviceState *dev)
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/* and to the FP/Neon instructions */
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env->cp15.cpacr_el1 = FIELD_DP64(env->cp15.cpacr_el1,
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CPACR_EL1, FPEN, 3);
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/* and to the SVE instructions */
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env->cp15.cpacr_el1 = FIELD_DP64(env->cp15.cpacr_el1,
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CPACR_EL1, ZEN, 3);
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/* with reasonable vector length */
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/* and to the SVE instructions, with default vector length */
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if (cpu_isar_feature(aa64_sve, cpu)) {
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env->cp15.cpacr_el1 = FIELD_DP64(env->cp15.cpacr_el1,
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CPACR_EL1, ZEN, 3);
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env->vfp.zcr_el[1] = cpu->sve_default_vq - 1;
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}
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/*
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