Commit Graph

3 Commits

Author SHA1 Message Date
Jiewen Yao 8e9da4ba3c IntelSiliconPkg/IntelVTdPmrPei: Parse RMRR table.
In order to support PEI graphic, we let VTdPmrPei driver
parse DMAR table RMRR entry and allow the UMA access.

If a system has no PEI IGD, no RMRR is needed. The behavior
is unchanged.

If a system has PEI IGD, it must report RMRR in PEI phase.
The PeiVTdPrm will program the IGD VTd engine to skip the
RMRR region, and program the rest PCI VTd engine to skip
the another DMA buffer allocated in PEI phase for other
device driver.

Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-20 14:45:43 +08:00
Jiewen Yao 4084ccfa22 IntelSiliconPkg/VTdPei: Fix Linux build error.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
2017-09-18 08:56:39 +08:00
Jiewen Yao db5c75863d IntelSiliconPkg/IntelVTdPmrPei: Move to feature dir.
Move IntelVTdPmrPei to Feature/VTd/IntelVTdPmrPei.

Suggested-by: Star Zeng <star.zeng@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-09-17 09:52:13 +08:00