tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

IntelSiliconPkg/dec: Clarify VTdPolicy. 

Clarify the VTdPolicy is for both PEI and DXE.

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>
This commit is contained in:
Jiewen Yao 2017-09-21 15:06:46 +08:00
parent 73a2fe8b87
commit 8be3ff8fb8
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
IntelSiliconPkg/IntelSiliconPkg.dec
View File

@ -48,8 +48,8 @@
gIntelSiliconPkgTokenSpaceGuid.PcdIntelGraphicsVbtFileGuid|{ 0xa9, 0x2d, 0x75, 0x56, 0x6b, 0xde, 0x95, 0x48, 0x88, 0x19, 0x19, 0x45, 0xb6, 0xb7, 0x6c, 0x22 }|VOID*|0x00000001
## The mask is used to control VTd behavior.<BR><BR>
# BIT0: Enable IOMMU during boot.
# BIT1: Enable IOMMU on exit boot service.
# BIT0: Enable IOMMU during boot (If DMAR table is installed in DXE. If VTD_INFO_PPI is installed in PEI.)
# BIT1: Enable IOMMU when transfer control to OS (ExitBootService in normal boot. EndOfPEI in S3)
# @Prompt The policy for VTd driver behavior.
gIntelSiliconPkgTokenSpaceGuid.PcdVTdPolicyPropertyMask|1|UINT8|0x00000002