3 files changed, 150 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DpcLib.c b/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DpcLib.c
new file mode 100644
index 00000000..87105b21
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DpcLib.c
@@ -0,0 +1,94 @@
+/** @file
+  Help functions to access UDP service.
+
+Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <Uefi.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Protocol/Dpc.h>
+
+//
+// Pointer to the DPC Protocol
+//
+EFI_DPC_PROTOCOL  *mDpc;
+
+/**
+  This constructor function caches the EFI_DPC_PROTOCOL pointer.
+
+  @param[in] ImageHandle The firmware allocated handle for the EFI image.
+  @param[in] SystemTable A pointer to the EFI System Table.
+
+  @retval EFI_SUCCESS The constructor always return EFI_SUCCESS.
+
+**/
+EFI_STATUS
+EFIAPI
+DpcLibConstructor (
+  IN EFI_HANDLE        ImageHandle,
+  IN EFI_SYSTEM_TABLE  *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+
+  //
+  // Locate the EFI_DPC_PROTOCOL in the handle database
+  //
+  Status = gBS->LocateProtocol (&gEfiDpcProtocolGuid, NULL, (VOID **)&mDpc);
+  ASSERT_EFI_ERROR (Status);
+
+  return Status;
+}
+
+/**
+  Add a Deferred Procedure Call to the end of the DPC queue.
+
+  @param[in]  DpcTpl        The EFI_TPL that the DPC should be invoked.
+  @param[in]  DpcProcedure  Pointer to the DPC's function.
+  @param[in]  DpcContext    Pointer to the DPC's context.  Passed to DpcProcedure
+                            when DpcProcedure is invoked.
+
+  @retval EFI_SUCCESS            The DPC was queued.
+  @retval EFI_INVALID_PARAMETER  DpcTpl is not a valid EFI_TPL.
+  @retval EFI_INVALID_PARAMETER  DpcProcedure is NULL.
+  @retval EFI_OUT_OF_RESOURCES   There are not enough resources available to
+                                 add the DPC to the queue.
+
+**/
+EFI_STATUS
+EFIAPI
+QueueDpc (
+  IN EFI_TPL            DpcTpl,
+  IN EFI_DPC_PROCEDURE  DpcProcedure,
+  IN VOID               *DpcContext    OPTIONAL
+  )
+{
+  //
+  // Call the EFI_DPC_PROTOCOL to queue the DPC
+  //
+  return mDpc->QueueDpc (mDpc, DpcTpl, DpcProcedure, DpcContext);
+}
+
+/**
+  Dispatch the queue of DPCs.  ALL DPCs that have been queued with a DpcTpl
+  value greater than or equal to the current TPL are invoked in the order that
+  they were queued.  DPCs with higher DpcTpl values are invoked before DPCs with
+  lower DpcTpl values.
+
+  @retval EFI_SUCCESS    One or more DPCs were invoked.
+  @retval EFI_NOT_FOUND  No DPCs were invoked.
+
+**/
+EFI_STATUS
+EFIAPI
+DispatchDpc (
+  VOID
+  )
+{
+  //
+  // Call the EFI_DPC_PROTOCOL to dispatch previously queued DPCs
+  //
+  return mDpc->DispatchDpc (mDpc);
+}
diff --git a/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DxeDpcLib.inf b/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DxeDpcLib.inf
new file mode 100644
index 00000000..7e980781
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DxeDpcLib.inf
@@ -0,0 +1,40 @@
+## @file
+#  This library instance provides DPC service by consuming EFI DPC Protocol.
+#
+#  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = DxeDpcLib
+  MODULE_UNI_FILE                = DxeDpcLib.uni
+  FILE_GUID                      = 38897D86-FF36-4472-AE64-1DB9AE715C81
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = DpcLib|DXE_CORE DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER UEFI_APPLICATION UEFI_DRIVER
+  CONSTRUCTOR                    = DpcLibConstructor
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+#  VALID_ARCHITECTURES           = IA32 X64 EBC
+#
+
+[Sources]
+  DpcLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  NetworkPkg/NetworkPkg.dec
+
+[LibraryClasses]
+  DebugLib
+  UefiBootServicesTableLib
+
+[Protocols]
+  gEfiDpcProtocolGuid                  ## CONSUMES
+
+[Depex.common.DXE_DRIVER, Depex.common.DXE_RUNTIME_DRIVER, Depex.common.DXE_SAL_DRIVER, Depex.common.DXE_SMM_DRIVER]
+  gEfiDpcProtocolGuid
diff --git a/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DxeDpcLib.uni b/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DxeDpcLib.uni
new file mode 100644
index 00000000..3105bbcf
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/NetworkPkg/Library/DxeDpcLib/DxeDpcLib.uni
@@ -0,0 +1,16 @@
+// /** @file
+// This library instance provides DPC service by consuming EFI DPC Protocol.
+//
+// This library instance provides the DPC service by consuming EFI DPC Protocol.
+//
+// Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+// **/
+
+
+#string STR_MODULE_ABSTRACT             #language en-US "Provides the DPC service by consuming EFI DPC Protocol"
+
+#string STR_MODULE_DESCRIPTION          #language en-US "This library instance provides the DPC service by consuming EFI DPC Protocol."
+