Gem5: Implemented MemoryManager

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1863 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

src/core/sal/gem5/Gem5Controller.hpp

@@ -2,6 +2,9 @@
   #define __GEM5_CONTROLLER_HPP__
 
 #include "../SimulatorController.hpp"
+#include "Gem5Memory.hpp"
+
+#include "sim/system.hh"
 
 namespace fail {
 
@@ -11,6 +14,13 @@ namespace fail {
  */
 class Gem5Controller : public SimulatorController {
 public:
+	void startup()
+	{
+		SimulatorController::startup();
+		
+		m_Mem = new Gem5MemoryManager(System::systemList.front());
+	}
+
 	void onBreakpoint(address_t instrPtr, address_t address_space);
 
 	bool save(const std::string &path);

src/core/sal/gem5/Gem5Memory.hpp

@@ -0,0 +1,75 @@
+#ifndef __GEM5_MEMORY_HPP__
+  #define __GEM5_MEMORY_HPP__
+
+#include "../Memory.hpp"
+
+#include "sim/system.hh"
+#include "mem/packet.hh"
+#include "mem/physical.hh"
+
+//class System;
+
+namespace fail {
+
+/**
+ * \class Gem5MemoryManager
+ * Represents a concrete implemenation of the abstract
+ * MemoryManager to provide access to gem5's memory pool.
+ */
+class Gem5MemoryManager : public MemoryManager {
+public:
+	Gem5MemoryManager(System* system) : m_System(system), m_Mem(&system->getPhysMem()) {}
+	
+	size_t getPoolSize() const { return m_Mem->totalSize(); }
+	host_address_t getStartAddr() const { return 0; }
+
+	byte_t getByte(guest_address_t addr)
+	{
+		Request req(addr, 1, Request::PHYSICAL, 0);
+
+		Packet pkt(&req, MemCmd::ReadReq);
+		byte_t data;
+		pkt.dataStatic(&data);
+
+		m_Mem->functionalAccess(&pkt);
+		return data;
+	}
+
+	void getBytes(guest_address_t addr, size_t cnt, void *dest)
+	{
+		Request req(addr, cnt, Request::PHYSICAL, 0);
+
+		Packet pkt(&req, MemCmd::ReadReq);
+		pkt.dataStatic(dest);
+
+		m_Mem->functionalAccess(&pkt);
+	}
+
+	void setByte(guest_address_t addr, byte_t data)
+	{
+		Request req(addr, 1, Request::PHYSICAL, 0);
+
+		Packet pkt(&req, MemCmd::WriteReq);
+		pkt.dataStatic(&data);
+
+		m_Mem->functionalAccess(&pkt);
+	}
+
+	void setBytes(guest_address_t addr, size_t cnt, void const *src)
+	{
+		Request req(addr, cnt, Request::PHYSICAL, 0);
+
+		Packet pkt(&req, MemCmd::WriteReq);
+		pkt.dataStatic(src);
+
+		m_Mem->functionalAccess(&pkt);
+	}
+
+private:
+	System* m_System;
+	PhysicalMemory* m_Mem;
+};
+
+} // end-of-namespace: fail
+
+#endif // __GEM5_MEMORY_HPP__