Fix bug in AsmCpuVirtual() to return 1 instead of 0 when CPU is in virtual mode.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / WriteDr7.c

diff --git a/MdePkg/Library/BaseLib/Ia32/WriteDr7.c b/MdePkg/Library/BaseLib/Ia32/WriteDr7.c
index e53eccb3e9b4c2c3aaa5375200d606168512322d..4905b8dd0ec3342ee52a7e8bdccaf09939856bd4 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/WriteDr7.c
+++ b/MdePkg/Library/BaseLib/Ia32/WriteDr7.c
@@ -1,8 +1,8 @@
 /** @file\r
   AsmWriteDr7 function\r
 \r
-  Copyright (c) 2006 - 2007, 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
@@ -12,11 +12,17 @@
 \r
 **/\r
 \r
-//\r
-// Include common header file for this module.\r
-//\r
-#include "CommonHeader.h"\r
+/**\r
+  Writes a value to Debug Register 7 (DR7).\r
 \r
+  Writes and returns a new value to DR7. This function is only available on\r
+  IA-32 and x64. This writes a 32-bit value on IA-32 and a 64-bit value on x64.\r
+\r
+  @param  Value The value to write to Dr7.\r
+\r
+  @return The value written to Debug Register 7 (DR7).\r
+\r
+**/\r
 UINTN\r
 EFIAPI\r
 AsmWriteDr7 (\r