1 files changed, 33 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadGdtr.c b/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadGdtr.c
new file mode 100644
index 000000000..5b01300b4
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/Ia32/ReadGdtr.c
@@ -0,0 +1,33 @@
+/** @file
+  AsmReadGdtr function
+
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+#include "BaseLibInternals.h"
+
+
+/**
+  Reads the current Global Descriptor Table Register(GDTR) descriptor.
+
+  Reads and returns the current GDTR descriptor and returns it in Gdtr. This
+  function is only available on IA-32 and x64.
+
+  @param  Gdtr  The pointer to a GDTR descriptor.
+
+**/
+VOID
+EFIAPI
+InternalX86ReadGdtr (
+  OUT IA32_DESCRIPTOR  *Gdtr
+  )
+{
+  _asm {
+    mov     eax, Gdtr
+    sgdt    fword ptr [eax]
+  }
+}
+