Re: [Xen-devel] [PATCH v2 05/13] iommu/arm: Re-define iommu_use_hap_pt(d) as iommu_hap_pt_share

[Oleksandr Tyshchenko <olekstysh@xxxxxxxxx>]

Hi, Julien

On Thu, Aug 3, 2017 at 2:23 PM, Julien Grall <julien.grall@xxxxxxx> wrote:
> Hi Oleksandr,
>
> On 25/07/17 18:26, Oleksandr Tyshchenko wrote:
>>
>> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
>>
>> Not every integrated into ARM SoCs IOMMU can share page tables
>> with the CPU and as the result the iommu_use_hap_pt(d) mustn't
>> always be true.
>> Reuse x86's iommu_hap_pt_share flag to indicate whether the IOMMU
>> page table is shared or not.
>>
>> As P2M table must always be shared between the CPU and the SMMU
>> print an error message and bail out if this flag was previously unset.
>>
>> Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
>> CC: Julien Grall <julien.grall@xxxxxxx>
>
>
> Reviewed-by: Julien Grall <julien.grall@xxxxxxx>
Thank you!

>
> Cheers,
>
> --
> Julien Grall



-- 
Regards,

Oleksandr Tyshchenko

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