;edk2-devel@lists.01.org>; Tian, Feng
> <feng.t...@intel.com>; Zeng, Star <star.z...@intel.com>; Gao, Liming
> <liming@intel.com>; Laszlo Ersek <ler...@redhat.com>; Leif Lindholm
> <leif.lindh...@linaro.org>
> Subject: Re: [edk2] [PATCH 0/7] MdeModuleP
rg>; Tian, Feng <feng.t...@intel.com>;
Zeng, Star <star.z...@intel.com>; Gao, Liming <liming@intel.com>; Laszlo
Ersek <ler...@redhat.com>; Leif Lindholm <leif.lindh...@linaro.org>
Subject: Re: [edk2] [PATCH 0/7] MdeModulePkg ArmVirtPkg: fixes for 64-bit PCI
DMA
ng, Star <star.z...@intel.com>; Gao, Liming
>> <liming@intel.com>
>> Cc: Laszlo Ersek <ler...@redhat.com>; Leif Lindholm
>> <leif.lindh...@linaro.org>; Ard Biesheuvel <ard.biesheu...@linaro.org>
>> Subject: Re: [edk2] [PATCH 0/7] MdeModulePkg ArmVi
esheuvel <ard.biesheu...@linaro.org>
> Subject: Re: [edk2] [PATCH 0/7] MdeModulePkg ArmVirtPkg: fixes for 64-bit
> PCI DMA
>
> Feng, Star: do you have any feedback on these patches? Thanks.
>
> On 5 September 2016 at 10:17, Ard Biesheuvel <ard.biesheu...@linaro.org>
> wrote
Also cc Ruiyu to see if any comments.
Thanks,
Star
-Original Message-
From: Ard Biesheuvel [mailto:ard.biesheu...@linaro.org]
Sent: Tuesday, September 6, 2016 3:48 PM
To: edk2-devel-01 ; Tian, Feng ;
Zeng, Star ; Gao,
Feng, Star: do you have any feedback on these patches? Thanks.
On 5 September 2016 at 10:17, Ard Biesheuvel wrote:
> After moving ArmVirtQemu to the generic PciHostBridgeDxe, we noticed that
> setting DmaAbove4G resulted in problems with the emulated EHCI USB host
>
After moving ArmVirtQemu to the generic PciHostBridgeDxe, we noticed that
setting DmaAbove4G resulted in problems with the emulated EHCI USB host
controller, which were caused by the fact that the PCI layer was providing
DMA buffers allocated above 4 GB while the emulated EHCI controller in QEMU
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