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To: Ard Biesheuvel <ard.biesheuvel@linaro.org>, edk2-devel@ml01.01.org,
 feng.tian@intel.com, star.zeng@intel.com, liming.gao@intel.com
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 <1473067049-16252-8-git-send-email-ard.biesheuvel@linaro.org>
Cc: leif.lindholm@linaro.org
From: Laszlo Ersek <lersek@redhat.com>
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Date: Mon, 5 Sep 2016 14:04:40 +0200
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 (mx1.redhat.com [10.5.110.26]); Mon, 05 Sep 2016 12:04:42 +0000 (UTC)
Subject: Re: [PATCH 7/7] ArmVirtPkg/FdtPciHostBridgeLib: enable 64-bit PCI DMA
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On 09/05/16 11:17, Ard Biesheuvel wrote:
> 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>
> ---
>  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 bb3742386c63..5b9c887db35d 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;
>  
> 

Reviewed-by: Laszlo Ersek <lersek@redhat.com>