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target/arm: Suppress FEAT_TRBE (Trace Buffer Extension)

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Like FEAT_TRF (Self-hosted Trace Extension), suppress tracing
external to the cpu, which is out of scope for QEMU.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20230811214031.171020-10-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Richard Henderson 2023-08-31 09:45:16 +01:00 committed by Peter Maydell
parent 87da10b45c
commit 3d5f45ec89
1 changed files with 3 additions and 0 deletions
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3
target/arm/cpu.c
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@ -2088,6 +2088,9 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp)
/* FEAT_SPE (Statistical Profiling Extension) */
cpu->isar.id_aa64dfr0 =
FIELD_DP64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, PMSVER, 0);
/* FEAT_TRBE (Trace Buffer Extension) */
cpu->isar.id_aa64dfr0 =
FIELD_DP64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, TRACEBUFFER, 0);
/* FEAT_TRF (Self-hosted Trace Extension) */
cpu->isar.id_aa64dfr0 =
FIELD_DP64(cpu->isar.id_aa64dfr0, ID_AA64DFR0, TRACEFILT, 0);