[PATCH 14/22] gpu: host1x: Forbid relocation address shifting in the firewall

[Dmitry Osipenko]

On 01.06.2017 21:37, Dmitry Osipenko wrote:
> On 01.06.2017 20:39, Mikko Perttunen wrote:
>> Reviewed-by: Mikko Perttunen <mperttunen at nvidia.com>
>>
>> On 05/23/2017 03:14 AM, Dmitry Osipenko wrote:
>>> Incorrectly shifted relocation address will cause a lower memory corruption
>>> and likely a hang on a write or a read of an arbitrary data in case of IOMMU
>>> absent. As of now there is no use for the address shifting (at least on
>>> Tegra20) and adding a proper shifting / sizes validation is much more work.
>>
>> Perhaps change to "As of now there is no use for the address shifting on
>> Tegra20" if you post another revision.
>>
> I'll post a new revision of the series after getting comments to the all
> patches, to not churn the ML. Thank you very much for the reviews!
> 

However, given your previous comments to this patch, I'll probably add a bypass
of the shit checking in case of IOMMU presence.

-- 
Dmitry