1 files changed, 27 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseCpuLib/Ia32/CpuSleepGcc.c b/roms/edk2/MdePkg/Library/BaseCpuLib/Ia32/CpuSleepGcc.c
new file mode 100644
index 000000000..ad5b150d6
--- /dev/null
+++ b/roms/edk2/MdePkg/Library/BaseCpuLib/Ia32/CpuSleepGcc.c
@@ -0,0 +1,27 @@
+/** @file
+  CpuSleep function for Ia32/X64 GCC.
+
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+/**
+  Places the CPU in a sleep state until an interrupt is received.
+
+  Places the CPU in a sleep state until an interrupt is received. If interrupts
+  are disabled prior to calling this function, then the CPU will be placed in a
+  sleep state indefinitely.
+
+**/
+VOID
+EFIAPI
+CpuSleep (
+  VOID
+  )
+{
+  __asm__ __volatile__ ("hlt"::: "memory");
+}
+