Code Scrub for MdePkg.

[mirror_edk2.git] / MdePkg / Library / BaseLib / Ia32 / WriteMsr64.c

diff --git a/MdePkg/Library/BaseLib/Ia32/WriteMsr64.c b/MdePkg/Library/BaseLib/Ia32/WriteMsr64.c
index 06cf910c48fbf80d3e141bd652a16e47de9aa33b..77a068950a6885ee4f8934cae730b984cfd99756 100644 (file)
--- a/MdePkg/Library/BaseLib/Ia32/WriteMsr64.c
+++ b/MdePkg/Library/BaseLib/Ia32/WriteMsr64.c
@@ -17,6 +17,23 @@
 //\r
 \r
 \r
+/**\r
+  Writes a 64-bit value to a Machine Specific Register(MSR), and returns the\r
+  value.\r
+\r
+  Writes the 64-bit value specified by Value to the MSR specified by Index. The\r
+  64-bit value written to the MSR is returned. No parameter checking is\r
+  performed on Index or Value, and some of these may cause CPU exceptions. The\r
+  caller must either guarantee that Index and Value are valid, or the caller\r
+  must establish proper exception handlers. This function is only available on\r
+  IA-32 and X64.\r
+\r
+  @param  Index The 32-bit MSR index to write.\r
+  @param  Value The 64-bit value to write to the MSR.\r
+\r
+  @return Value\r
+\r
+**/\r
 UINT64\r
 EFIAPI\r
 AsmWriteMsr64 (\r