1 files changed, 83 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BmLib.c b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BmLib.c
new file mode 100644
index 00000000..5e71a5dc
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Library/BootMaintenanceManagerUiLib/BmLib.c
@@ -0,0 +1,83 @@
+/** @file
+Utility routines used by boot maintenance modules.
+
+Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "BootMaintenanceManager.h"
+
+/**
+  Function deletes the variable specified by VarName and VarGuid.
+
+  @param VarName           A Null-terminated Unicode string that is
+                           the name of the vendor's variable.
+
+  @param VarGuid           A unique identifier for the vendor.
+
+  @retval  EFI_SUCCESS           The variable was found and removed
+  @retval  EFI_UNSUPPORTED       The variable store was inaccessible
+  @retval  EFI_NOT_FOUND         The variable was not found
+
+**/
+EFI_STATUS
+EfiLibDeleteVariable (
+  IN CHAR16   *VarName,
+  IN EFI_GUID *VarGuid
+  )
+{
+  return gRT->SetVariable (
+                VarName,
+                VarGuid,
+                0,
+                0,
+                NULL
+                );
+}
+
+/**
+  Function is used to determine the number of device path instances
+  that exist in a device path.
+
+
+  @param DevicePath      A pointer to a device path data structure.
+
+  @return This function counts and returns the number of device path instances
+          in DevicePath.
+
+**/
+UINTN
+EfiDevicePathInstanceCount (
+  IN EFI_DEVICE_PATH_PROTOCOL      *DevicePath
+  )
+{
+  UINTN Count;
+  UINTN Size;
+
+  Count = 0;
+  while (GetNextDevicePathInstance (&DevicePath, &Size) != NULL) {
+    Count += 1;
+  }
+
+  return Count;
+}
+
+/**
+  Get a string from the Data Hub record based on
+  a device path.
+
+  @param DevPath         The device Path.
+
+  @return A string located from the Data Hub records based on
+          the device path.
+  @retval NULL  If failed to get the String from Data Hub.
+
+**/
+UINT16 *
+EfiLibStrFromDatahub (
+  IN EFI_DEVICE_PATH_PROTOCOL                 *DevPath
+  )
+{
+  return NULL;
+}