linux-kernel - Re: [PATCH v9 0/5] Share sva domains with all devices bound to a mm

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Message-ID: <20231026122016.GU691768@ziepe.ca>
Date:   Thu, 26 Oct 2023 09:20:16 -0300
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Tina Zhang <tina.zhang@...el.com>, iommu@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Kevin Tian <kevin.tian@...el.com>,
        Nicolin Chen <nicolinc@...dia.com>,
        Michael Shavit <mshavit@...gle.com>,
        Vasant Hegde <vasant.hegde@....com>
Subject: Re: [PATCH v9 0/5] Share sva domains with all devices bound to a mm

On Thu, Oct 26, 2023 at 09:24:40AM +0200, Joerg Roedel wrote:
> Hi Tina,
> 
> On Wed, Oct 18, 2023 at 01:06:35PM +0800, Tina Zhang wrote:
> > Tina Zhang (5):
> >   iommu/vt-d: Remove mm->pasid in intel_sva_bind_mm()
> >   iommu: Add mm_get_enqcmd_pasid() helper function
> >   mm: Add structure to keep sva information
> >   iommu: Support mm PASID 1:n with sva domains
> >   mm: Deprecate pasid field
> 
> Thanks for doing this, it all looks reasonable to me. But there is one
> thing missing which needs to be done before we can move forward with
> this.
> 
> There was a discussion about the Kconfig symbol naming used in
> mm_struct. Please see the discussion here:
> 
> 	https://lore.kernel.org/all/CAHk-=wgUiAtiszwseM1p2fCJ+sC4XWQ+YN4TanFhUgvUqjr9Xw@mail.gmail.com/
>
> Please update this patch-set to solve this and I will take the series.

Lets call it CONFIG_IOMMU_MM_DATA then. It is still pretty nonsensical
but it speaks to what it does after this series

Thanks,
Jason