X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=MdePkg%2FLibrary%2FBaseLib%2FIa32%2FWriteCr4.c;h=548d30ee3141b0a101041c09d52a1345789cb501;hb=42eedea958591087603bbacd1c2227d2494026af;hp=04e7b0049162338e8de6fa9bef00131690c9dd55;hpb=0f82bd55142af193e669e76fcaf02f8d835f3f39;p=mirror_edk2.git

diff --git a/MdePkg/Library/BaseLib/Ia32/WriteCr4.c b/MdePkg/Library/BaseLib/Ia32/WriteCr4.c
index 04e7b00491..548d30ee31 100644
--- a/MdePkg/Library/BaseLib/Ia32/WriteCr4.c
+++ b/MdePkg/Library/BaseLib/Ia32/WriteCr4.c
@@ -17,6 +17,17 @@
 //
 
 
+/**
+  Writes a value to Control Register 4 (CR4).
+
+  Writes and returns a new value to CR4. This function is only available on
+  IA-32 and X64. This writes a 32-bit value on IA-32 and a 64-bit value on X64.
+
+  @param  Cr4 The value to write to CR4.
+
+  @return The value written to CR4.
+
+**/
 UINTN
 EFIAPI
 AsmWriteCr4 (