1 files changed, 31 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadLdtr.c b/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadLdtr.c
new file mode 100644
index 000000000..407676a46
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadLdtr.c
@@ -0,0 +1,31 @@
+/** @file
+  AsmReadLdtr function
+
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+
+
+/**
+  Reads the current Local Descriptor Table Register(LDTR) selector.
+
+  Reads and returns the current 16-bit LDTR descriptor value. This function is
+  only available on IA-32 and x64.
+
+  @return The current selector of LDT.
+
+**/
+UINT16
+EFIAPI
+AsmReadLdtr (
+  VOID
+  )
+{
+  _asm {
+    sldt    ax
+  }
+}
+