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-rw-r--r--MdePkg/Library/BaseLib/BaseLib.inf2
-rw-r--r--MdePkg/Library/BaseLib/X64/FlushCacheLine.nasm39
2 files changed, 41 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index 998b33b885..8d93b91461 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -457,6 +457,7 @@
X64/DisableInterrupts.asm | MSFT
X64/EnableInterrupts.nasm| MSFT
X64/EnableInterrupts.asm | MSFT
+ X64/FlushCacheLine.nasm| MSFT
X64/FlushCacheLine.asm | MSFT
X64/Invd.asm | MSFT
X64/Wbinvd.asm | MSFT
@@ -535,6 +536,7 @@
X64/DisableInterrupts.asm | INTEL
X64/EnableInterrupts.nasm| INTEL
X64/EnableInterrupts.asm | INTEL
+ X64/FlushCacheLine.nasm| INTEL
X64/FlushCacheLine.asm | INTEL
X64/Invd.asm | INTEL
X64/Wbinvd.asm | INTEL
diff --git a/MdePkg/Library/BaseLib/X64/FlushCacheLine.nasm b/MdePkg/Library/BaseLib/X64/FlushCacheLine.nasm
new file mode 100644
index 0000000000..9a37df85db
--- /dev/null
+++ b/MdePkg/Library/BaseLib/X64/FlushCacheLine.nasm
@@ -0,0 +1,39 @@
+;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
+; This program and the accompanying materials
+; are licensed and made available under the terms and conditions of the BSD License
+; which accompanies this distribution. The full text of the license may be found at
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+; Module Name:
+;
+; FlushCacheLine.Asm
+;
+; Abstract:
+;
+; AsmFlushCacheLine function
+;
+; Notes:
+;
+;------------------------------------------------------------------------------
+
+ DEFAULT REL
+ SECTION .text
+
+;------------------------------------------------------------------------------
+; VOID *
+; EFIAPI
+; AsmFlushCacheLine (
+; IN VOID *LinearAddress
+; );
+;------------------------------------------------------------------------------
+global ASM_PFX(AsmFlushCacheLine)
+ASM_PFX(AsmFlushCacheLine):
+ clflush [rcx]
+ mov rax, rcx
+ ret
+