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Date:   Thu, 26 Oct 2023 02:42:31 -0400
From:   "Michael S. Tsirkin" <>
To:     Cindy Lu <>
Subject: Re: [RFC 0/7] vdpa: Add support for iommufd

On Sun, Sep 24, 2023 at 01:05:33AM +0800, Cindy Lu wrote:
> Hi All
> Really apologize for the delay, this is the draft RFC for
> iommufd support for vdpa, This code provides the basic function 
> for iommufd support 
> The code was tested and passed in device vdpa_sim_net
> The qemu code is
> The kernel code is
> ToDo
> 1. this code is out of date and needs to clean and rebase on the latest code 
> 2. this code has some workaround, I Skip the check for
> iommu_group and CACHE_COHERENCY, also some misc issues like need to add
> mutex for iommfd operations 
> 3. only test in emulated device, other modes not tested yet
> After addressed these problems I will send out a new version for RFC. I will
> provide the code in 3 weeks

What's the status here?


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