From 4c0b2d25c61c8dad0a9dcf9cb078df102aee6284 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 5 Sep 2016 10:00:37 +0100
Subject: [PATCH] ArmVirtPkg/FdtPciHostBridgeLib: enable 64-bit PCI DMA

Now that the PCI root bridge driver and various host controller drivers
have been fixed, remove the 4 GB limit on PCI DMA allocation for QEMU's
ECAM PCI host bridge.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
---
 ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c b/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
index bb3742386c..5b9c887db3 100644
--- a/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
+++ b/ArmVirtPkg/Library/FdtPciHostBridgeLib/FdtPciHostBridgeLib.c
@@ -317,7 +317,7 @@ PciHostBridgeGetRootBridges (
                                       EFI_PCI_ATTRIBUTE_VGA_PALETTE_IO_16;
   mRootBridge.Attributes            = mRootBridge.Supports;
 
-  mRootBridge.DmaAbove4G            = FALSE;
+  mRootBridge.DmaAbove4G            = TRUE;
   mRootBridge.NoExtendedConfigSpace = FALSE;
   mRootBridge.ResourceAssigned      = FALSE;