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-rw-r--r--MdePkg/Library/BaseLib/X64/ReadMsr64.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/X64/ReadMsr64.c b/MdePkg/Library/BaseLib/X64/ReadMsr64.c
index 6ec22a3e69..582234a235 100644
--- a/MdePkg/Library/BaseLib/X64/ReadMsr64.c
+++ b/MdePkg/Library/BaseLib/X64/ReadMsr64.c
@@ -15,6 +15,7 @@
/**
Microsoft Visual Studio 7.1 Function Prototypes for I/O Intrinsics.
**/
+
unsigned __int64 __readmsr (int register);
#pragma intrinsic(__readmsr)