Re: [PATCH 0/3] IntelSiliconPkg/InteVTdPei: Add RMRR support in PEI

["Zeng, Star" <star.zeng@intel.com>]

Minor comments added for separated patches, with that fixed, Reviewed-by: Star Zeng <star.zeng@intel.com>


Thanks,
Star
-----Original Message-----
From: Yao, Jiewen 
Sent: Sunday, September 17, 2017 2:07 PM
To: edk2-devel@lists.01.org
Cc: Zeng, Star <star.zeng@intel.com>
Subject: [PATCH 0/3] IntelSiliconPkg/InteVTdPei: Add RMRR support in PEI

We notice that there is real usage in PEI to show the graphic output.
The Integrated Graphic Device is blocked by current IntelVTdPei because the DMA buffer is fully controlled by VTd PEIM. The UMA is not allowed.

In DXE phase, the UMA is reported via RMRR table.

As such, we need similar way in PEI to let VTd PEI get the RMRR information.

This series patch resolves this problem.

We also updated sample driver to show how to get the RMRR information.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>

Jiewen Yao (3):
  IntelSiliconPkg/VTdInfoPpi: Let it follow DMAR table.
  IntelSiliconPkg/IntelVTdPmrPei: Parse RMRR table.
  IntelSiliconPkg/VTdInfoSample: Add RMRR table.

 IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmr.c                          |  52 +-
 IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.c                       | 581 +++++++++++++++++++-
 IntelSiliconPkg/Feature/VTd/IntelVTdPmrPei/IntelVTdPmrPei.h                       |  20 +-
 IntelSiliconPkg/Feature/VTd/PlatformVTdInfoSamplePei/PlatformVTdInfoSamplePei.c   | 156 +++++-
 IntelSiliconPkg/Feature/VTd/PlatformVTdInfoSamplePei/PlatformVTdInfoSamplePei.inf |   3 +
 IntelSiliconPkg/Include/Ppi/VtdInfo.h                                             |  26 +-
 6 files changed, 788 insertions(+), 50 deletions(-)

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2.7.4.windows.1