Re: [RFC 0/7] vdpa: Add support for iommufd

[Michael S. Tsirkin]

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
> https://gitlab.com/lulu6/gitlabqemutmp/-/tree/iommufdRFC
> The kernel code is
> https://gitlab.com/lulu6/vhost/-/tree/iommufdRFC
> 
> 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 this code is out of date and needs to clean and rebase on the latest code 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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MST