diff -r 3f37cc5d25bc -r ab284c6ba421 src/python/m5/SimObject.py
--- a/src/python/m5/SimObject.py	Mon May 23 14:36:22 2011 -0400
+++ b/src/python/m5/SimObject.py	Thu May 26 21:15:47 2011 -0500
@@ -726,6 +726,20 @@
                 found_obj = match_obj
         return found_obj, found_obj != None
 
+    def find_all(self, ptype):
+        all = {}
+        # search children
+        for child in self._children.itervalues():
+            if isinstance(child, ptype) and not isproxy(child):
+                all[child] = True
+        # search param space
+        for pname,pdesc in self._params.iteritems():
+            if issubclass(pdesc.ptype, ptype):
+                match_obj = self._values[pname]
+                if not isproxy(match_obj):
+                    all[match_obj] = True
+        return all.keys(), True
+
     def unproxy(self, base):
         return self
 
diff -r 3f37cc5d25bc -r ab284c6ba421 src/python/m5/params.py
--- a/src/python/m5/params.py	Mon May 23 14:36:22 2011 -0400
+++ b/src/python/m5/params.py	Thu May 26 21:15:47 2011 -0500
@@ -184,7 +184,10 @@
         return [ v.getValue() for v in self ]
 
     def unproxy(self, base):
-        return [v.unproxy(base) for v in self]
+        val = [v.unproxy(base) for v in self]
+        if len(val) and isinstance(val[0], (list, tuple)):
+            return val[0]
+        return val
 
 class SimObjectVector(VectorParamValue):
     # support clone operation
diff -r 3f37cc5d25bc -r ab284c6ba421 src/python/m5/proxy.py
--- a/src/python/m5/proxy.py	Mon May 23 14:36:22 2011 -0400
+++ b/src/python/m5/proxy.py	Thu May 26 21:15:47 2011 -0500
@@ -184,6 +184,13 @@
     def path(self):
         return 'any'
 
+class AllProxy(BaseProxy):
+    def find(self, obj):
+        return obj.find_all(self._pdesc.ptype)
+
+    def path(self):
+        return 'all'
+
 def isproxy(obj):
     if isinstance(obj, (BaseProxy, params.EthernetAddr)):
         return True
@@ -201,6 +208,8 @@
     def __getattr__(self, attr):
         if attr == 'any':
             return AnyProxy(self.search_self, self.search_up)
+        elif attr == 'all':
+            return AllProxy(self.search_self, self.search_up)
         else:
             return AttrProxy(self.search_self, self.search_up, attr)
 
diff -r 3f37cc5d25bc -r ab284c6ba421 src/sim/System.py
--- a/src/sim/System.py	Mon May 23 14:36:22 2011 -0400
+++ b/src/sim/System.py	Thu May 26 21:15:47 2011 -0500
@@ -47,6 +47,8 @@
     physmem = Param.PhysicalMemory(Parent.any, "physical memory")
     mem_mode = Param.MemoryMode('atomic', "The mode the memory system is in")
 
+    memories = VectorParam.PhysicalMemory(Self.all, "All memories is the system")
+
     work_item_id = Param.Int(-1, "specific work item id")
     work_begin_cpu_id_exit = Param.Int(-1,
         "work started on specific id, now exit simulation")