diff -r 8a6c6e7d4ea5 -r dec5e0f271c5 src/python/m5/params.py
--- a/src/python/m5/params.py	Mon Sep 29 11:42:36 2014 +0100
+++ b/src/python/m5/params.py	Mon Sep 29 11:42:52 2014 +0100
@@ -1611,6 +1611,31 @@
     def cxx_ini_parse(self, code, src, dest, ret):
         code('%s (std::istringstream(%s) >> %s).eof();' % (ret, src, dest))
 
+class Current(float,ParamValue):
+    cxx_type = 'double'
+    ex_str = "1mA"
+    cmd_line_settable = False
+
+    def __new__(cls, value):
+        # convert to current
+        val = convert.toCurrent(value)
+        return super(cls, Current).__new__(cls, val)
+
+    def __call__(self, value):
+        val = convert.toCurrent(value)
+        self.__init__(val)
+        return value
+
+    def __str__(self):
+        return str(self.getValue())
+
+    def getValue(self):
+        value = float(self)
+        return value
+
+    def ini_str(self):
+        return '%f' % self.getValue()
+
 class NetworkBandwidth(float,ParamValue):
     cxx_type = 'float'
     ex_str = "1Gbps"
diff -r 8a6c6e7d4ea5 -r dec5e0f271c5 src/python/m5/util/convert.py
--- a/src/python/m5/util/convert.py	Mon Sep 29 11:42:36 2014 +0100
+++ b/src/python/m5/util/convert.py	Mon Sep 29 11:42:52 2014 +0100
@@ -311,3 +311,11 @@
 
     raise ValueError, "cannot convert '%s' to voltage" % value
 
+def toCurrent(value):
+    if not isinstance(value, str):
+        raise TypeError, "wrong type '%s' should be str" % type(value)
+
+    if value.endswith('A'):
+        return toFloat(value[:-1])
+
+    raise ValueError, "cannot convert '%s' to current" % value