diff mbox

[06/32] target-arm: Add register_cp_regs_for_features()

Message ID 1334497585-867-7-git-send-email-peter.maydell@linaro.org
State Superseded
Headers show

Commit Message

Peter Maydell April 15, 2012, 1:45 p.m. UTC 
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.maydell@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 mbox

Patch

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;