Devices/Bus: Start implementing a device emulation using VFIO to pass through real devices to the guest, the current PoC is able to pass through a Realtek NIC fully functional, bugref:11054 [missing files]

svn:sync-xref-src-repo-rev: r172594

Author: AlexanderEichner

src/VBox/Devices/build/VBoxDD.cpp

@@ -1,4 +1,4 @@
-/* $Id: VBoxDD.cpp 112403 2026-01-11 19:29:08Z knut.osmundsen@oracle.com $ */
+/* $Id: VBoxDD.cpp 112860 2026-02-06 21:07:19Z alexander.eichner@oracle.com $ */
 /** @file
  * VBoxDD - Built-in drivers & devices (part 1).
  */
@@ -251,6 +251,11 @@ extern "C" DECLEXPORT(int) VBoxDevicesRegister(PPDMDEVREGCB pCallbacks, uint32_t
     if (RT_FAILURE(rc))
         return rc;
 #endif
+#ifdef VBOX_WITH_VFIO_PCI_PASSTHROUGH
+    rc = pCallbacks->pfnRegister(pCallbacks, &g_DevicePciVfio);
+    if (RT_FAILURE(rc))
+        return rc;
+#endif
 #ifdef VBOX_WITH_VIRT_ARMV8
     rc = pCallbacks->pfnRegister(pCallbacks, &g_DeviceEfiArmV8);
     if (RT_FAILURE(rc))

src/VBox/Devices/build/VBoxDD.h

@@ -1,4 +1,4 @@
-/* $Id: VBoxDD.h 112403 2026-01-11 19:29:08Z knut.osmundsen@oracle.com $ */
+/* $Id: VBoxDD.h 112860 2026-02-06 21:07:19Z alexander.eichner@oracle.com $ */
 /** @file
  * Built-in drivers & devices (part 1) header.
  */
@@ -117,6 +117,9 @@ extern const PDMDEVREG g_DeviceQemuFwCfg;
 extern const PDMDEVREG g_DeviceTpm;
 extern const PDMDEVREG g_DeviceTpmPpi;
 #endif
+#ifdef VBOX_WITH_VFIO_PCI_PASSTHROUGH
+extern const PDMDEVREG g_DevicePciVfio;
+#endif
 
 extern const PDMDRVREG g_DrvMouseQueue;
 extern const PDMDRVREG g_DrvKeyboardQueue;
@@ -248,6 +251,7 @@ extern const PDMDRVREG g_DrvCardReaderReg;
 # endif
 #endif
 
+
 /* VBoxAcpi.cpp */
 int acpiPrepareDsdt(PPDMDEVINS pDevIns, void **ppvPtr, size_t *pcbDsdt);
 int acpiCleanupDsdt(PPDMDEVINS pDevIns, void *pvPtr);