util: implements "writefile" gem5 op to export file from guest to host filesystem

[gem5.git] / src / sim / tlb.hh

diff --git a/src/sim/tlb.hh b/src/sim/tlb.hh
index ddd3127e50987a1c7666f7647b6db11b2615620c..253f1207208f19c009f097b1190daca06591ef7a 100644 (file)
--- a/src/sim/tlb.hh
+++ b/src/sim/tlb.hh
@@ -1,4 +1,16 @@
 /*
+ * Copyright (c) 2011 ARM Limited
+ * All rights reserved.
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder.  You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
  * Copyright (c) 2006 The Regents of The University of Michigan
  * All rights reserved.
  *
@@ -33,11 +45,12 @@
 
 #include "base/misc.hh"
 #include "mem/request.hh"
-#include "sim/fault.hh"
+#include "sim/fault_fwd.hh"
 #include "sim/sim_object.hh"
 
 class ThreadContext;
 class Packet;
+class Port;
 
 class BaseTLB : public SimObject
 {
@@ -52,12 +65,23 @@ class BaseTLB : public SimObject
   public:
     virtual void demapPage(Addr vaddr, uint64_t asn) = 0;
 
+    /** Get any port that the TLB or hardware table walker needs.
+     * This is used for migrating port connections during a takeOverFrom()
+     * call. */
+    virtual Port*  getPort() { return NULL; }
+
     class Translation
     {
       public:
         virtual ~Translation()
         {}
 
+        /**
+         * Signal that the translation has been delayed due to a hw page table
+         * walk.
+         */
+        virtual void markDelayed() = 0;
+
         /*
          * The memory for this object may be dynamically allocated, and it may
          * be responsible for cleaning itself up which will happen in this