Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <[email protected]>
Cc: Ming Shao <[email protected]>
---
UefiCpuPkg/Include/Library/MtrrLib.h | 10 +++++++---
UefiCpuPkg/Library/MtrrLib/MtrrLib.c | 8 ++++++--
2 files changed, 13 insertions(+), 5 deletions(-)
diff --git a/UefiCpuPkg/Include/Library/MtrrLib.h
b/UefiCpuPkg/Include/Library/MtrrLib.h
index 0bf7d8ed10..d56f1057e1 100644
--- a/UefiCpuPkg/Include/Library/MtrrLib.h
+++ b/UefiCpuPkg/Include/Library/MtrrLib.h
@@ -1,7 +1,7 @@
/** @file
MTRR setting library
- Copyright (c) 2008 - 2017, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2008 - 2018, 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
which accompanies this distribution. The full text of the license may be
found at
@@ -157,7 +157,9 @@ GetFirmwareVariableMtrrCount (
@retval RETURN_OUT_OF_RESOURCES There are not enough system resources to
modify the attributes of the memory
resource range.
- @retval RETURN_BUFFER_TOO_SMALL The scratch buffer is too small for MTRR
calculation.
+ @retval RETURN_BUFFER_TOO_SMALL The fixed internal scratch buffer is too
small for MTRR calculation.
+ Caller should use
MtrrSetMemoryAttributesInMtrrSettings() to specify
+ external scratch buffer.
**/
RETURN_STATUS
EFIAPI
@@ -352,7 +354,9 @@ MtrrGetDefaultMemoryType (
BaseAddress and Length cannot be modified.
@retval RETURN_OUT_OF_RESOURCES There are not enough system resources to
modify the attributes of
the memory resource range.
- @retval RETURN_BUFFER_TOO_SMALL The scratch buffer is too small for MTRR
calculation.
+ @retval RETURN_BUFFER_TOO_SMALL The fixed internal scratch buffer is too
small for MTRR calculation.
+ Caller should use
MtrrSetMemoryAttributesInMtrrSettings() to specify
+ external scratch buffer.
**/
RETURN_STATUS
EFIAPI
diff --git a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
index 30b0df030b..2496d08ad4 100644
--- a/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
+++ b/UefiCpuPkg/Library/MtrrLib/MtrrLib.c
@@ -2513,7 +2513,9 @@ Exit:
BaseAddress and Length cannot be modified.
@retval RETURN_OUT_OF_RESOURCES There are not enough system resources to
modify the attributes of
the memory resource range.
- @retval RETURN_BUFFER_TOO_SMALL The scratch buffer is too small for MTRR
calculation.
+ @retval RETURN_BUFFER_TOO_SMALL The fixed internal scratch buffer is too
small for MTRR calculation.
+ Caller should use
MtrrSetMemoryAttributesInMtrrSettings() to specify
+ external scratch buffer.
**/
RETURN_STATUS
EFIAPI
@@ -2559,7 +2561,9 @@ MtrrSetMemoryAttributeInMtrrSettings (
@retval RETURN_OUT_OF_RESOURCES There are not enough system resources to
modify the attributes of the memory
resource range.
- @retval RETURN_BUFFER_TOO_SMALL The scratch buffer is too small for MTRR
calculation.
+ @retval RETURN_BUFFER_TOO_SMALL The fixed internal scratch buffer is too
small for MTRR calculation.
+ Caller should use
MtrrSetMemoryAttributesInMtrrSettings() to specify
+ external scratch buffer.
**/
RETURN_STATUS
EFIAPI
--
2.15.1.windows.2
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