[v1] target/arm/tcg: enable pmu feature for cortex a9

[PATCH] target/arm/tcg: enable pmu feature for cortex a9

Nikita Ostrenkov posted 1 patch 1 year ago

Diff against v2 v3
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git fetch https://github.com/patchew-project/qemu tags/patchew/20231112165008.1419-1-n.ostrenkov@gmail.com

Maintainers: Peter Maydell <peter.maydell@linaro.org>

There is a newer version of this series

target/arm/tcg/cpu32.c | 1 +
1 file changed, 1 insertion(+)

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[PATCH] target/arm/tcg: enable pmu feature for cortex a9

Posted by Nikita Ostrenkov 1 year ago

From: Nikita Ostrenkov <Nikita.Ostrenkov@gmail.com>

According to the technical reference manual Cortex A9 like Cortex A7 and Cortex A15 has Perfomance Unit Monitor (PMU)
https://developer.arm.com/documentation/100511/0401/performance-monitoring-unit/about-the-performance-monitoring-unit
---
 target/arm/tcg/cpu32.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/arm/tcg/cpu32.c b/target/arm/tcg/cpu32.c
index 0d5d8e307d..0008c3f890 100644
--- a/target/arm/tcg/cpu32.c
+++ b/target/arm/tcg/cpu32.c
@@ -418,6 +418,7 @@ static void cortex_a9_initfn(Object *obj)
     set_feature(&cpu->env, ARM_FEATURE_NEON);
     set_feature(&cpu->env, ARM_FEATURE_THUMB2EE);
     set_feature(&cpu->env, ARM_FEATURE_EL3);
+    set_feature(&cpu->env, ARM_FEATURE_PMU);
     /*
      * Note that A9 supports the MP extensions even for
      * A9UP and single-core A9MP (which are both different
-- 
2.34.1