X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;ds=sidebyside;f=OvmfPkg%2FLibrary%2FPciHostBridgeLib%2FPciHostBridgeLib.c;h=b23939d166c11ff76b140bca5f44ea4f82c399f4;hb=390951c2b803535e7fe8ecbba3fc1ff6bdaa3da5;hp=f1cefe416996867c2397e870e3ab8ff6640a1959;hpb=c789d61dcb6b1990133a947351f67751cf0c4e31;p=mirror_edk2.git

diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
index f1cefe4169..b23939d166 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
+++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -17,6 +17,7 @@
 
 #include <IndustryStandard/Pci.h>
 
+#include <Protocol/PciHostBridgeResourceAllocation.h>
 #include <Protocol/PciRootBridgeIo.h>
 
 #include <Library/BaseMemoryLib.h>
@@ -84,6 +85,22 @@ InitRootBridge (
 
   RootBus->DmaAbove4G = FALSE;
 
+  RootBus->AllocationAttributes = EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM;
+  RootBus->PMem.Base            = 0;
+  RootBus->PMem.Limit           = 0;
+  RootBus->PMemAbove4G.Base     = 0;
+  RootBus->PMemAbove4G.Limit    = 0;
+  RootBus->MemAbove4G.Base      = 0;
+  RootBus->MemAbove4G.Limit     = 0;
+
+  RootBus->Bus.Base  = RootBusNumber;
+  RootBus->Bus.Limit = MaxSubBusNumber;
+  RootBus->Io.Base   = PcdGet64 (PcdPciIoBase);
+  RootBus->Io.Limit  = PcdGet64 (PcdPciIoBase) + (PcdGet64 (PcdPciIoSize) - 1);
+  RootBus->Mem.Base  = PcdGet64 (PcdPciMmio32Base);
+  RootBus->Mem.Limit = PcdGet64 (PcdPciMmio32Base) +
+                       (PcdGet64 (PcdPciMmio32Size) - 1);
+
   return EFI_OUT_OF_RESOURCES;
 }