diff --git a/src/core/sal/bochs/BochsController.cc b/src/core/sal/bochs/BochsController.cc
index e24226f2..d922f638 100644
--- a/src/core/sal/bochs/BochsController.cc
+++ b/src/core/sal/bochs/BochsController.cc
@@ -55,7 +55,7 @@ void BochsController::onTimerTrigger(void* thisPtr)
 	simulator.m_LstList.triggerActiveListeners();
 }
 
-void BochsController::onIOPort(unsigned char data, unsigned port, bool out) {
+void BochsController::onIOPort(ConcreteCPU* cpu, unsigned char data, unsigned port, bool out) {
 	// Check for active IOPortListeners:
 	ListenerManager::iterator it = m_LstList.begin();
 	while (it != m_LstList.end()) {
@@ -63,6 +63,7 @@ void BochsController::onIOPort(unsigned char data, unsigned port, bool out) {
 		IOPortListener* pIOPt = dynamic_cast<IOPortListener*>(pLi);
 		if (pIOPt != NULL && pIOPt->isMatching(port, out)) {
 			pIOPt->setData(data);
+			pIOPt->setTriggerCPU(cpu);
 			it = m_LstList.makeActive(it);
 			// "it" has already been set to the next element (by calling
 			// makeActive()):
@@ -157,4 +158,16 @@ const std::string& BochsController::getMnemonic() const
 	return str;
 }
 
+ConcreteCPU& BochsController::detectCPU(BX_CPU_C* pCPU) const
+{
+	unsigned i = 0;
+  #if BX_SUPPORT_SMP
+	for (; i < BX_SMP_PROCESSORS; i++) {
+		if (BX_CPU_C[i] == pCPU) // cmp this ptr with all possible CPU objects
+			break; // index "i" found! -> stop!
+	}
+  #endif
+	return getCPU(i);
+}
+
 } // end-of-namespace: fail
diff --git a/src/core/sal/bochs/BochsController.hpp b/src/core/sal/bochs/BochsController.hpp
index a12de9ec..ed021646 100644
--- a/src/core/sal/bochs/BochsController.hpp
+++ b/src/core/sal/bochs/BochsController.hpp
@@ -55,11 +55,12 @@ public:
 	/**
 	 * I/O port communication handler. This method is called (from
 	 * the IOPortCom aspect) every time when Bochs performs a port I/O operation.
+	 * @param cpu the CPU that caused the IO port access
 	 * @param data the data transmitted
 	 * @param port the port it was transmitted on
 	 * @param out true if the I/O traffic has been outbound, false otherwise
 	 */
-	void onIOPort(unsigned char data, unsigned port, bool out);
+	void onIOPort(ConcreteCPU* cpu, unsigned char data, unsigned port, bool out);
 	/**
 	 * Internal handler for TimerListeners. This method is called when a previously
 	 * registered (Bochs) timer triggers. It searches for the provided TimerListener
@@ -144,6 +145,13 @@ public:
 	 * @param cacheEntry the Bochs internal CPU cache entry ptr
 	 */
 	void updateBPEventInfo(BX_CPU_C *context, bxInstruction_c *instr);
+	/**
+	 * Retrieves the concrete CPU object, based on the given Bochs' internal pointer \a pCPU.
+	 * @param pCPU the Bochs' internal CPU object
+	 * @return the FailBochs CPU representation that corresponds to Bochs' internal CPU \a pCPU
+	 * @see The uses SimulatorController::getCPU().
+	 */
+	ConcreteCPU& detectCPU(BX_CPU_C* pCPU) const;
 };
 
 } // end-of-namespace: fail