linux-kernel - Re: iommufd(+vfio-compat) dirty tracking

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Message-ID: <20220318173416.GS11336@nvidia.com>
Date:   Fri, 18 Mar 2022 14:34:16 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Joao Martins <joao.m.martins@...cle.com>
Cc:     Shameerali Kolothum Thodi <shameerali.kolothum.thodi@...wei.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-crypto@...r.kernel.org" <linux-crypto@...r.kernel.org>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "mgurtovoy@...dia.com" <mgurtovoy@...dia.com>,
        Linuxarm <linuxarm@...wei.com>,
        liulongfang <liulongfang@...wei.com>,
        "Zengtao (B)" <prime.zeng@...ilicon.com>,
        yuzenghui <yuzenghui@...wei.com>,
        Jonathan Cameron <jonathan.cameron@...wei.com>,
        "Wangzhou (B)" <wangzhou1@...ilicon.com>
Subject: Re: iommufd(+vfio-compat) dirty tracking

On Fri, Mar 18, 2022 at 05:12:01PM +0000, Joao Martins wrote:
> I updated my branch and added an SMMUv3 implementation of the whole thing (slightly based
> on the past work) and adjusted the 'set tracking' structure to cover this slightly
> different h/w construct above. At the high-level we have 'set_dirty_tracking_range' API,
> which is internal in iommufd obviously. The UAPI won't change ofc.

Shameerali has HW, AFAIK..

Jason