1. Correct File header to ## @file

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / PciBusDxe / PciBus.h

diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h
index 722f31d03c5c4ea7d5b8bab858fc153c2ebaa1bb..90fdaa3b62b97dc1e94fda4847b2340ad3c374aa 100644 (file)
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h
@@ -268,6 +268,12 @@ struct _PCI_IO_DEVICE {
   UINT32                                    SystemPageSize;\r
   UINT16                                    InitialVFs;\r
   UINT16                                    ReservedBusNum;\r
+  //\r
+  // Per PCI to PCI Bridge spec, I/O window is 4K aligned,\r
+  // but some chipsets support non-stardard I/O window aligments less than 4K.\r
+  // This field is used to support this case.\r
+  //\r
+  UINT16                                    BridgeIoAlignment;\r
 };\r
 \r
 #define PCI_IO_DEVICE_FROM_PCI_IO_THIS(a) \\r