1 files changed, 35 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/X64/WriteIdtr.nasm b/roms/edk2/MdePkg/Library/BaseLib/X64/WriteIdtr.nasm
new file mode 100644
index 000000000..c6155c018
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/X64/WriteIdtr.nasm
@@ -0,0 +1,35 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+; Module Name:
+;
+;   WriteIdtr.Asm
+;
+; Abstract:
+;
+;   AsmWriteIdtr function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+    DEFAULT REL
+    SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; InternalX86WriteIdtr (
+;   IN      CONST IA32_DESCRIPTOR     *Idtr
+;   );
+;------------------------------------------------------------------------------
+global ASM_PFX(InternalX86WriteIdtr)
+ASM_PFX(InternalX86WriteIdtr):
+    pushfq
+    cli
+    lidt    [rcx]
+    popfq
+    ret
+