Add new function register_cp_regs_for_features() as a place to
register coprocessor registers dependent on feature flags.
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
target-arm/cpu-qom.h | 1 +
target-arm/cpu.c | 2 ++
target-arm/helper.c | 11 +++++++++++
3 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/target-arm/cpu-qom.h b/target-arm/cpu-qom.h
index 4abfa90..f8f1e7a 100644
--- a/target-arm/cpu-qom.h
+++ b/target-arm/cpu-qom.h
@@ -105,5 +105,6 @@ static inline ARMCPU *arm_env_get_cpu(CPUARMState *env)
#define ENV_GET_CPU(e) CPU(arm_env_get_cpu(e))
void arm_cpu_realize(ARMCPU *cpu);
+void register_cp_regs_for_features(ARMCPU *cpu);
#endif
diff --git a/target-arm/cpu.c b/target-arm/cpu.c
index ae55cd0..eca686c 100644
--- a/target-arm/cpu.c
+++ b/target-arm/cpu.c
@@ -210,6 +210,8 @@ void arm_cpu_realize(ARMCPU *cpu)
if (arm_feature(env, ARM_FEATURE_VFP3)) {
set_feature(env, ARM_FEATURE_VFP);
}
+
+ register_cp_regs_for_features(cpu);
}
/* CPU models */
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 60473fc..325fbab 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -61,6 +61,17 @@ static int vfp_gdb_set_reg(CPUARMState *env, uint8_t *buf,
int reg)
return 0;
}
+void register_cp_regs_for_features(ARMCPU *cpu)
+{
+ /* Register all the coprocessor registers based on feature bits */
+ CPUARMState *env = &cpu->env;
+ if (arm_feature(env, ARM_FEATURE_M)) {
+ /* M profile has no coprocessor registers */
+ return;
+ }
+
+}
+
CPUARMState *cpu_arm_init(const char *cpu_model)
{
ARMCPU *cpu;
--
1.7.1
