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Re: [Xen-devel] [PATCH v2 3/4] amd-iommu: disable iommu_hap_pt_share with AMD IOMMUs



On 23/04/14 11:57, Jan Beulich wrote:
>>>> On 23.04.14 at 10:16, <roger.pau@xxxxxxxxxx> wrote:
>> According to the comment in p2m.h, AMD IOMMUs don't work correctly
>> with page types different than p2m_ram_rw when the p2m is shared
>> between HAP and IOMMU, so disable this sharing when using AMD IOMMUs.
> 
> Doesn't this need to go before patch 2?

It could certainly go before patch 2, but I don't see such a hard
requirement in the ordering (either way AMD hardware needs both patches
to work correctly, and applying one before the other is not going to
break bisection AFAICT).

Roger.


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