Add PcdVTdPeiDmaBufferSize(S3) to replace the hard coded value
TOTAL_DMA_BUFFER_SIZE and TOTAL_DMA_BUFFER_SIZE_S3 in IntelVTdPmrPei.
Cc: Jiewen Yao <jiewen....@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.z...@intel.com>
---
.../Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c | 7 ++-----
.../Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf | 4 +++-
IntelSiliconPkg/IntelSiliconPkg.dec | 18 +++++++++++++++++-
3 files changed, 22 insertions(+), 7 deletions(-)
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
index 6289834fcb38..9a0138b3b086 100644
--- a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
@@ -29,9 +29,6 @@
#include "IntelVTdPmrPei.h"
-#define TOTAL_DMA_BUFFER_SIZE SIZE_4MB
-#define TOTAL_DMA_BUFFER_SIZE_S3 SIZE_2MB
-
EFI_GUID mVTdInfoGuid = {
0x222f5e30, 0x5cd, 0x49c6, { 0x8a, 0xc, 0x36, 0xd6, 0x58, 0x41, 0xe0, 0x82 }
};
@@ -798,9 +795,9 @@ IntelVTdPmrInitialize (
PeiServicesGetBootMode (&BootMode);
if (BootMode == BOOT_ON_S3_RESUME) {
- DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE_S3;
+ DmaBufferInfo->DmaBufferSize = PcdGet32 (PcdVTdPeiDmaBufferSizeS3);
} else {
- DmaBufferInfo->DmaBufferSize = TOTAL_DMA_BUFFER_SIZE;
+ DmaBufferInfo->DmaBufferSize = PcdGet32 (PcdVTdPeiDmaBufferSize);
}
Status = PeiServicesNotifyPpi (&mVTdInfoNotifyDesc);
diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
index e6d0323acc50..5b688d5cbf9f 100644
--- a/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
@@ -4,7 +4,7 @@
# This driver initializes VTd engine based upon EDKII_VTD_INFO_PPI
# and provide DMA protection in PEI.
#
-# Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2017 - 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
@@ -54,6 +54,8 @@ [Ppis]
[Pcd]
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPolicyPropertyMask ## CONSUMES
+ gIntelSiliconPkgTokenSpaceGuid.PcdVTdPeiDmaBufferSize ## CONSUMES
+ gIntelSiliconPkgTokenSpaceGuid.PcdVTdPeiDmaBufferSizeS3 ## CONSUMES
[Depex]
gEfiPeiMasterBootModePpiGuid AND
diff --git a/IntelSiliconPkg/IntelSiliconPkg.dec
b/IntelSiliconPkg/IntelSiliconPkg.dec
index a15d3dee392c..c0cf58fa6cb5 100644
--- a/IntelSiliconPkg/IntelSiliconPkg.dec
+++ b/IntelSiliconPkg/IntelSiliconPkg.dec
@@ -3,7 +3,7 @@
#
# This package provides common open source Intel silicon modules.
#
-# Copyright (c) 2016 - 2017, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2016 - 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 that accompanies this
distribution.
# The full text of the license may be found at
@@ -61,3 +61,19 @@ [PcdsFixedAtBuild, PcdsPatchableInModule, PcdsDynamic,
PcdsDynamicEx]
# @Prompt The policy for VTd driver behavior.
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPolicyPropertyMask|1|UINT8|0x00000002
+ ## Declares VTd PEI DMA buffer size.<BR><BR>
+ # When this PCD value is referred by platform to calculate the required
+ # memory size for PEI (InstallPeiMemory), the PMR alignment requirement
+ # needs be considered to be added with this PCD value for alignment
+ # adjustment need by AllocateAlignedPages.
+ # @Prompt The VTd PEI DMA buffer size.
+
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPeiDmaBufferSize|0x00400000|UINT32|0x00000003
+
+ ## Declares VTd PEI DMA buffer size for S3.<BR><BR>
+ # When this PCD value is referred by platform to calculate the required
+ # memory size for PEI S3 (InstallPeiMemory), the PMR alignment requirement
+ # needs be considered to be added with this PCD value for alignment
+ # adjustment need by AllocateAlignedPages.
+ # @Prompt The VTd PEI DMA buffer size for S3.
+
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPeiDmaBufferSizeS3|0x00200000|UINT32|0x00000004
+
--
2.13.3.windows.1
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