Produce all the PciIo & Dpath protocol for all the pci devices under the current host bridge.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4703 6f19259b-4bc3-4df7-8a09-765794883524

IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c

@@ -1000,6 +1000,12 @@ Returns:
     }
 
     PciRomGetImageMapping (Temp);
+
+    //
+    // The OpRom has already been processed in the first round
+    //
+    Temp->AllOpRomProcessed = TRUE;
+
     CurrentLink = CurrentLink->ForwardLink;
   }
 
@@ -1856,6 +1862,7 @@ Routine Description:
 
   This routine is used to enumerate entire pci bus system
   in a given platform
+  It is only called on the second start on the same Root Bridge.
 
 Arguments:
 
@@ -1881,9 +1888,9 @@ Returns:
   Descriptors = NULL;
 
   //
-  // If this host bridge has been already enumerated, then return successfully
+  // If this root bridge has been already enumerated, then return successfully
   //
-  if (RootBridgeExisted (Controller)) {
+  if (GetRootBridgeByHandle (Controller) != NULL) {
     return EFI_SUCCESS;
   }