Re: [Qemu-devel] [RFC v4 08/13] hw/vfio/common: Add EXEC_FLAG to VFIO DMA mappings

[Eric Auger]

On 07/07/2014 03:25 PM, Alvise Rigo wrote:
> Il 07/07/2014 14:49, Will Deacon ha scritto:
>> On Mon, Jul 07, 2014 at 01:27:18PM +0100, Eric Auger wrote:
>>> From: Alvise Rigo <address@hidden>
>>>
>>> The flag is mandatory for the ARM SMMU so we always add it if the MMIO
>>> handles it.
>>
>> I though the logic of this flag was changing (so that you request an NX
>> mapping instead), so I'd hold off on this change until the kernel has
>> decided what it's doing.
> 
> Yes, you are right.
> This patch is not needed anymore, in fact it was dropped in my last
> patch series.
> It should not be here, please ignore it.

OK. My apologies.

Best Regards

Eric

> 
> Regards,
> alvise
> 
>>
>> Also, the ARM SMMU doesn't mandate any flags, you probably need this as
>> a result of using a PL330, which is an odd case of a DMA master that
>> spits out EXEC transactions (instruction fetch).
>>
>> Will
>>