ArmVirtualizationPkg/PciHostBridgeDxe: allocate IO BARs top-down

[mirror_edk2.git] / ArmPlatformPkg / ArmVirtualizationPkg / PciHostBridgeDxe / PciHostBridge.c

diff --git a/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciHostBridge.c b/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciHostBridge.c
index 17d4db85bebf4013bd415989d03645fcef9bbb7c..78c12d0009bf44044b3e5fa1888080441cebad49 100644 (file)
--- a/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciHostBridge.c
+++ b/ArmPlatformPkg/ArmVirtualizationPkg/PciHostBridgeDxe/PciHostBridge.c
@@ -389,8 +389,9 @@ NotifyPhase(
                   BitsOfAlignment = 0;\r
                 }\r
                   \r
+                BaseAddress = mResAperture[0][0].IoLimit;\r
                 Status = gDS->AllocateIoSpace (\r
-                                EfiGcdAllocateAnySearchBottomUp, \r
+                                EfiGcdAllocateMaxAddressSearchTopDown,\r
                                 EfiGcdIoTypeIo, \r
                                 BitsOfAlignment,\r
                                 AddrLen,\r