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-rw-r--r--UefiCpuPkg/Library/MtrrLib/MtrrLib.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
index f667a8f796..5aef7724e2 100644
--- a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
+++ b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
@@ -1,6 +1,10 @@
/** @file
MTRR setting library
+ @par Note:
+ Most of services in this library instance are suggested to be invoked by BSP only,
+ except for MtrrSetAllMtrrs() which is used to sync BSP's MTRR setting to APs.
+
Copyright (c) 2008 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License