}
 
 
-struct op_x86_model_spec const op_ppro_spec = {
-       .num_counters = 2,
-       .num_controls = 2,
+struct op_x86_model_spec op_ppro_spec = {
+       .num_counters = 2,      /* can be overriden */
+       .num_controls = 2,      /* dito */
        .fill_in_addresses = &ppro_fill_in_addresses,
        .setup_ctrs = &ppro_setup_ctrs,
        .check_ctrs = &ppro_check_ctrs,
 
        op_arch_perfmon_spec.num_counters = num_counters;
        op_arch_perfmon_spec.num_controls = num_counters;
+       op_ppro_spec.num_counters = num_counters;
+       op_ppro_spec.num_controls = num_counters;
 }
 
 struct op_x86_model_spec op_arch_perfmon_spec = {
 
        void (*shutdown)(struct op_msrs const * const msrs);
 };
 
-extern struct op_x86_model_spec const op_ppro_spec;
+extern struct op_x86_model_spec op_ppro_spec;
 extern struct op_x86_model_spec const op_p4_spec;
 extern struct op_x86_model_spec const op_p4_ht2_spec;
 extern struct op_x86_model_spec const op_amd_spec;