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+The interface can be extended to include more modes and operations
+available in core IMC.
+
+Parameters
+----------
+``uint64_t operation``
+ 3 operations are supported for now (include/opal-api.h) :
+ - OPAL_CORE_IMC_DISABLE -- disable or stop the counters
+ - OPAL_CORE_IMC_ENABLE -- enable/resume the counters
+ - OPAL_CORE_IMC_INIT -- Initialize and enable the counters.
+
+``uint64_t addr``
+ For OPAL_CORE_IMC_INIT, this parameter must have a non-zero value.
+ This value must be a per-core physical address.
+ For other operations, this value is undefined and must be zero.
+
+``uint64_t value_1``
+ - This parameter is undefined for now and must be zero.
+
+``uint64_t value_2``
+ - This parameter is undefined for now and must be zero.
+
+Returns
+-------
+OPAL_PARAMETER
+ In any one/some/all of the following cases :
+ - Unsupported ``operation``
+ - Wrong ``addr`` for the given ``operation``
+ - Non-zero ``value_1`` or ``value_2``
+OPAL_HARDWARE
+ If xscom_write fails.
+OPAL_SUCCESS
+ On successful execution of the ``operation``.