1 files changed, 36 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseCpuLib/Ia32/CpuFlushTlbGcc.c b/MdePkg/Library/BaseCpuLib/Ia32/CpuFlushTlbGcc.c
new file mode 100644
index 0000000000..1b27f79e45
--- /dev/null
+++ b/MdePkg/Library/BaseCpuLib/Ia32/CpuFlushTlbGcc.c
@@ -0,0 +1,36 @@
+/** @file
+  CpuFlushTlb function for Ia32/X64 GCC.
+
+  Copyright (c) 2006 - 2008, Intel Corporation<BR>
+  Portions copyright (c) 2008-2009 Apple Inc.<BR>
+  All rights reserved. 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.
+
+**/
+
+
+
+/**
+  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
+
+  Flushes all the Translation Lookaside Buffers(TLB) entries in a CPU.
+
+**/
+VOID
+EFIAPI
+CpuFlushTlb (
+  VOID
+  )
+{
+  __asm__ __volatile__ (
+    "movl %%cr3, %0\n\t"
+    "movl %0, %%cr3    "
+    : "r"  // %0
+    );
+}
+