[PATCH-for-10.1,11/13] target/arm: Add arm_cpu_has_feature() helper

Commit Message

Philippe Mathieu-Daudé April 2, 2025, 10:23 p.m. UTC

arm_cpu_has_feature() is equivalent of arm_feature(), however
while the latter uses CPUARMState so is target-specific, the
former doesn't and can be called by target-agnostic code in hw/.

Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
---
 target/arm/cpu_has_feature.h | 2 ++
 target/arm/cpu.c             | 7 +++++++
 2 files changed, 9 insertions(+)

Patch

diff --git a/target/arm/cpu_has_feature.h b/target/arm/cpu_has_feature.h
index 2adfccd9208..352f9d75bed 100644
--- a/target/arm/cpu_has_feature.h
+++ b/target/arm/cpu_has_feature.h
@@ -62,4 +62,6 @@  typedef enum arm_features {
     ARM_FEATURE_BACKCOMPAT_CNTFRQ, /* 62.5MHz timer default */
 } ArmCpuFeature;
 
+bool arm_cpu_has_feature(ARMCPU *cpu, ArmCpuFeature feature);
+
 #endif
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 6f62745d7f6..66a58916fcc 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -55,6 +55,13 @@ 
 #include "target/arm/gtimer.h"
 #include "target/arm/multiprocessing.h"
 
+bool arm_cpu_has_feature(ARMCPU *cpu, ArmCpuFeature feature)
+{
+    CPUARMState *env = &cpu->env;
+
+    return arm_feature(env, feature);
+}
+
 static void arm_cpu_set_pc(CPUState *cs, vaddr value)
 {
     ARMCPU *cpu = ARM_CPU(cs);