MdePkg/BaseLib: Support IA32 processors without CLFLUSH

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / ReadFs.c

diff --git a/MdePkg/Library/BaseLib/Ia32/ReadFs.c b/MdePkg/Library/BaseLib/Ia32/ReadFs.c
index 73f6d0e332ed8ec71bd0d78a128af7edb0920bad..cbe45b116ce5d57fce55fca8240da41a1feab7ec 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/ReadFs.c
+++ b/MdePkg/Library/BaseLib/Ia32/ReadFs.c
@@ -1,19 +1,29 @@
 /** @file\r
   AsmReadFs function\r
 \r
-  Copyright (c) 2006, Intel Corporation<BR>\r
-  All rights reserved. This program and the accompanying materials\r
+  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>\r
+  This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
-  http://opensource.org/licenses/bsd-license.php\r
+  http://opensource.org/licenses/bsd-license.php.\r
 \r
   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
 \r
 **/\r
 \r
-#if _MSC_EXTENSIONS\r
 \r
+\r
+\r
+/**\r
+  Reads the current value of FS Data Segment Register (FS).\r
+\r
+  Reads and returns the current value of FS. This function is only available on\r
+  IA-32 and x64.\r
+\r
+  @return The current value of FS.\r
+\r
+**/\r
 UINT16\r
 EFIAPI\r
 AsmReadFs (\r
@@ -26,4 +36,3 @@ AsmReadFs (
   }\r
 }\r
 \r
-#endif\r