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IntelSiliconPkg VTdPmrPei: Add PcdVTdPeiDmaBufferSize(S3) 

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.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
This commit is contained in:
Star Zeng 2018-03-05 22:10:16 +08:00
parent abe63fa7dc
commit 339cb0af96
3 changed files with 22 additions and 7 deletions
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7
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c
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@ -29,9 +29,6 @@
#include "IntelVTdPmrPei.h"
#define TOTAL_DMA_BUFFER_SIZE SIZE_4MB
#define TOTAL_DMA_BUFFER_SIZE_S3 SIZE_1MB
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);

4
IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.inf
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@ -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 @@
[Pcd]
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPolicyPropertyMask ## CONSUMES
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPeiDmaBufferSize ## CONSUMES
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPeiDmaBufferSizeS3 ## CONSUMES
[Depex]
gEfiPeiMasterBootModePpiGuid AND

18
IntelSiliconPkg/IntelSiliconPkg.dec
View File

@ -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 @@
# @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