sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Some existing PCI adapters with UEFI option ROMs make unaligned requests through the PCI I/O Protocol. Add support for unaligned requests in the PCI IO protocol implementation in the PCI Bus driver to be compatible with those UEFI option ROMs.

Browse Source 
This solution defines a PCD Feature Flag to enabled support for unaligned requests through the PCI I/O Protocol.  This flag is disabled by default. Platforms that do want to support such EFI/UEFI drivers that make unaligned PCI I/O requests should enable this feature.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11016 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
rsun3
2010-11-09 03:41:03 +00:00
parent 8835954602
commit aeeb84bab4
3 changed files with 143 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf
View File

@@ -101,6 +101,7 @@
[FeaturePcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdPciBusHotplugDeviceSupport
gEfiMdeModulePkgTokenSpaceGuid.PcdPciBridgeIoAlignmentProbe
gEfiMdeModulePkgTokenSpaceGuid.PcdUnalignedPciIoEnable
[Pcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdSrIovSystemPageSize