Re: [RFC v3 17/21] iommu/smmuv3: Report non recoverable faults

Auger Eric
2019-01-16T12:49:48Z

Hi Jean,

On 1/16/19 1:25 PM, Jean-Philippe Brucker wrote:
> On 15/01/2019 21:06, Auger Eric wrote:
>>>> + iommu_report_device_fault(master->dev, &event);
>>>
>>> We should return here if the fault is successfully injected
>>
>> Even if the fault gets injected in the guest can't it be still useful to
>> get the message below on host side?
>
> I don't think we should let the guest flood the host log by issuing
> invalid DMA (or are there other cases where the guest can freely print
> stuff in the host?) We do print all errors at the moment, but we should
> tighten this once there is an upstream solution to let the guest control
> DMA mappings.
OK thank you for the clarification. Yes it makes sense to skip those
traces then.

Thanks

Eric
>
> Thanks,
> Jean
>