1 files changed, 31 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm b/roms/edk2/MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm
new file mode 100644
index 000000000..f7be1ea27
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm
@@ -0,0 +1,31 @@
+;------------------------------------------------------------------------------
+;
+; DisableInterrupts() for AArch64
+;
+; Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
+; Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+; Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+;------------------------------------------------------------------------------
+
+  EXPORT DisableInterrupts
+  AREA BaseLib_LowLevel, CODE, READONLY
+
+DAIF_WR_IRQ_BIT     EQU     (1 << 1)
+
+;/**
+;  Disables CPU interrupts.
+;
+;**/
+;VOID
+;EFIAPI
+;DisableInterrupts (
+;  VOID
+;  );
+;
+DisableInterrupts
+    msr  daifset, #DAIF_WR_IRQ_BIT
+    ret
+
+  END