2 files changed, 21 insertions, 1 deletions
diff --git a/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S b/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
index d00a3623c5..da927b9d43 100644
--- a/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
+++ b/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
@@ -1,7 +1,7 @@
 #------------------------------------------------------------------------------ 
 #
 # Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
-# Copyright (c) 2011, ARM Limited. All rights reserved.
+# Copyright (c) 2011-2012, ARM Limited. All rights reserved.
 #
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
@@ -40,6 +40,8 @@ GCC_ASM_EXPORT(ArmUpdateTranslationTableEntry)
 GCC_ASM_EXPORT(ArmWriteNsacr)
 GCC_ASM_EXPORT(ArmWriteScr)
 GCC_ASM_EXPORT(ArmWriteVMBar)
+GCC_ASM_EXPORT(ArmCallWFE)
+GCC_ASM_EXPORT(ArmCallSEV)
 
 #------------------------------------------------------------------------------
 
@@ -146,4 +148,12 @@ ASM_PFX(ArmWriteVMBar):
   mcr     p15, 0, r0, c12, c0, 1
   bx      lr
 
+ASM_PFX(ArmCallWFE):
+  wfe
+  bx      lr
+
+ASM_PFX(ArmCallSEV):
+  sev
+  bx      lr
+
 ASM_FUNCTION_REMOVE_IF_UNREFERENCED
diff --git a/ArmPkg/Library/ArmLib/Common/ArmLibSupport.asm b/ArmPkg/Library/ArmLib/Common/ArmLibSupport.asm
index b892603518..186ee33dfa 100644
--- a/ArmPkg/Library/ArmLib/Common/ArmLibSupport.asm
+++ b/ArmPkg/Library/ArmLib/Common/ArmLibSupport.asm
@@ -40,6 +40,8 @@
     EXPORT ArmWriteNsacr
     EXPORT ArmWriteScr
     EXPORT ArmWriteVMBar
+    EXPORT ArmCallWFE
+    EXPORT ArmCallSEV
 
     AREA ArmLibSupport, CODE, READONLY
 
@@ -146,4 +148,12 @@ ArmWriteVMBar
   mcr     p15, 0, r0, c12, c0, 1
   bx      lr
   
+ArmCallWFE
+  wfe
+  blx   lr
+
+ArmCallSEV
+  sev
+  blx   lr
+
   END