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

Cindy Lu
2023-10-26T06:49:40Z

On Thu, Oct 26, 2023 at 2:42 PM Michael S. Tsirkin <mst@redhat.com> wrote:
>
> 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 this code is out of date and needs to clean and rebase on the latest code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?
>
Hi Michael
The code is finished, but I found some bug after adding the support for ASID,
will post the new version after this bug is fixed, should be next week
Thanks
Cindy

> --
> MST
>