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-rw-r--r--OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
index db26029..f1cefe4 100644
--- a/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
+++ b/OvmfPkg/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -82,6 +82,8 @@ InitRootBridge (
EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;
RootBus->Attributes = RootBus->Supports;
+ RootBus->DmaAbove4G = FALSE;
+
return EFI_OUT_OF_RESOURCES;
}