linux-kernel - Re: [PATCH 00/13] iommu: amd: Add Generic IO Page Table Framework Support

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Message-ID: <c4b95103-8c66-6a9b-af18-a7c40d9dd943@amd.com>
Date:   Thu, 24 Sep 2020 17:50:37 +0700
From:   Suravee Suthikulpanit <suravee.suthikulpanit@....com>
To:     Joerg Roedel <joro@...tes.org>
Cc:     linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org
Subject: Re: [PATCH 00/13] iommu: amd: Add Generic IO Page Table Framework
 Support



On 9/24/20 5:34 PM, Joerg Roedel wrote:
> Hi Suravee,
> 
> On Wed, Sep 23, 2020 at 10:14:29AM +0000, Suravee Suthikulpanit wrote:
>> The framework allows callable implementation of IO page table.
>> This allows AMD IOMMU driver to switch between different types
>> of AMD IOMMU page tables (e.g. v1 vs. v2).
> 
> Is there a reason you created your own framework, there is already an
> io-pgtable framework for ARM, maybe that can be reused?
> 

Actually, this is the same framework used by ARM codes.
Sorry if the description is not clear.

Suravee