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Diffstat (limited to 'MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm')
-rw-r--r--MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm31
1 files changed, 31 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm b/MdePkg/Library/BaseLib/AArch64/DisableInterrupts.asm
new file mode 100644
index 000000000000..c299c51e8a1a
--- /dev/null
+++ b/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