linux-kernel - Re: [PATCH 0/7] iommu cleanup and refactoring

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Message-ID: <40399e95-1ce4-187e-06c1-7cd7b7f4a190@linux.intel.com>
Date:   Tue, 8 Feb 2022 09:32:25 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Joerg Roedel <joro@...tes.org>, Jason Gunthorpe <jgg@...dia.com>,
        Christoph Hellwig <hch@...radead.org>,
        Ben Skeggs <bskeggs@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Ashok Raj <ashok.raj@...el.com>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>
Cc:     baolu.lu@...ux.intel.com,
        Alex Williamson <alex.williamson@...hat.com>,
        Eric Auger <eric.auger@...hat.com>,
        Liu Yi L <yi.l.liu@...el.com>,
        Jacob jun Pan <jacob.jun.pan@...el.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] iommu cleanup and refactoring

On 1/24/22 3:10 PM, Lu Baolu wrote:
> Hi,
> 
> The guest pasid and aux-domain related code are dead code in current
> iommu subtree. As we have reached a consensus that all these features
> should be based on the new iommufd framework (which is under active
> development), the first part of this series removes and cleanups all
> the dead code.
> 
> The second part of this series refactors the iommu_domain by moving all
> domain-specific ops from iommu_ops to a new domain_ops. This makes an
> iommu_domain self-contained and represent the abstraction of an I/O
> translation table in the IOMMU subsystem. With different type of
> iommu_domain providing different set of ops, it's easier to support more
> types of I/O translation tables.
> 
> Please help to review and comment.

Thank you all for the great comments. A new version of this series has
been posted.

https://lore.kernel.org/linux-iommu/20220208012559.1121729-1-baolu.lu@linux.intel.com/

Please check whether I missed anything.

Best regards,
baolu