diff options
Diffstat (limited to 'MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c index f400006..d01a1f8 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciLib.c @@ -236,10 +236,14 @@ PciHostBridgeResourceAllocator ( // enumerator. Several resource tree was created
//
+ //
+ // If non-stardard PCI Bridge I/O window alignment is supported,
+ // set I/O aligment to minimum possible alignment for root bridge.
+ //
IoBridge = CreateResourceNode (
RootBridgeDev,
0,
- 0xFFF,
+ FeaturePcdGet (PcdPciBridgeIoAlignmentProbe) ? 0x1FF: 0xFFF,
0,
PciBarTypeIo16,
PciResUsageTypical
|