1 files changed, 102 insertions, 0 deletions
diff --git a/UnixPkg/UnixThunkDxe/UnixThunk.c b/UnixPkg/UnixThunkDxe/UnixThunk.c
new file mode 100644
index 0000000000..df3512ca45
--- /dev/null
+++ b/UnixPkg/UnixThunkDxe/UnixThunk.c
@@ -0,0 +1,102 @@
+/*++
+
+Copyright (c) 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  UnixThunk.c
+
+Abstract:
+
+  Produce UnixThunk protocol and it's associated device path and controller 
+  state protocols. UnixThunk is to the emulation environment as 
+  PCI_ROOT_BRIGE is to real hardware. The UnixBusDriver is the child of this
+  driver.
+
+  Since we are a root hardware abstraction we do not install a Driver Binding
+  protocol on this handle. This driver can only support one one UnixThunk protocol
+  in the system, since the device path is hard coded.
+
+--*/
+#include "PiDxe.h"
+#include "UnixDxe.h"
+#include "UnixThunk.h"
+#include <Protocol/DevicePath.h>
+
+#include <Library/DebugLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UnixLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+
+//
+// WinNtThunk Device Path Protocol Instance
+//
+static UNIX_THUNK_DEVICE_PATH mUnixThunkDevicePath = {
+  {
+    {
+      HARDWARE_DEVICE_PATH,
+      HW_VENDOR_DP,
+      {
+        (UINT8) (sizeof (VENDOR_DEVICE_PATH)),
+        (UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8)
+      }
+    },
+    EFI_UNIX_THUNK_PROTOCOL_GUID,
+  },
+  {
+    END_DEVICE_PATH_TYPE,
+    END_ENTIRE_DEVICE_PATH_SUBTYPE,
+    {
+      END_DEVICE_PATH_LENGTH,
+      0
+    }
+  }
+};
+
+
+EFI_STATUS
+EFIAPI
+InitializeUnixThunk (
+  IN EFI_HANDLE                            ImageHandle,
+  IN EFI_SYSTEM_TABLE                      *SystemTable
+  )
+/*++
+
+Routine Description:
+  Install UnixThunk Protocol and it's associated Device Path protocol
+
+Arguments:
+  (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
+
+Returns:
+  EFI_SUCEESS - UnixThunk protocol is added or error status from 
+                gBS->InstallMultiProtocolInterfaces().
+
+--*/
+// TODO:    ImageHandle - add argument and description to function comment
+// TODO:    SystemTable - add argument and description to function comment
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  ControllerHandle;
+
+  ControllerHandle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces (
+                  &ControllerHandle,
+                  &gEfiUnixThunkProtocolGuid,
+                  gUnix,
+                  &gEfiDevicePathProtocolGuid,
+                  &mUnixThunkDevicePath,
+                  NULL
+                  );
+
+  return Status;
+}