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Re: [PATCH v3 01/23] xen/arm: smmuv3: Maintain a SID->device structure
- To: Milan Djokic <milan_djokic@xxxxxxxx>
- From: Luca Fancellu <Luca.Fancellu@xxxxxxx>
- Date: Thu, 9 Apr 2026 14:59:24 +0000
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- Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Rahul Singh <Rahul.Singh@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>, Eric Auger <eric.auger@xxxxxxxxxx>, Keqian Zhu <zhukeqian1@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Joerg Roedel <jroedel@xxxxxxx>
- Delivery-date: Thu, 09 Apr 2026 15:00:35 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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- Thread-topic: [PATCH v3 01/23] xen/arm: smmuv3: Maintain a SID->device structure
Hi Milan,
> On 31 Mar 2026, at 02:51, Milan Djokic <milan_djokic@xxxxxxxx> wrote:
>
> From: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
>
> Backport Linux commit cdf315f907d4. This is the clean backport without
> any changes.
>
> When handling faults from the event or PRI queue, we need to find the
> struct device associated with a SID. Add a rb_tree to keep track of
> SIDs.
>
> Acked-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
> Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
> Reviewed-by: Keqian Zhu <zhukeqian1@xxxxxxxxxx>
> Signed-off-by: Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>
> Acked-by: Will Deacon <will@xxxxxxxxxx>
> Link:
> https://lore.kernel.org/r/20210401154718.307519-8-jean-philippe@xxxxxxxxxx
> Signed-off-by: Joerg Roedel <jroedel@xxxxxxx>
> Origin: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> cdf315f907d4
> Signed-off-by: Rahul Singh <rahul.singh@xxxxxxx>
> Signed-off-by: Milan Djokic <milan_djokic@xxxxxxxx>
> ---
I think that by only backporting this one we are introducing a regression for
which
we don’t allow anymore duplicated stream id, have a look on this linux commit
that is fixing it: b00d24997a11c10d3e420614f0873b83ce358a34.
P.s. I was able to apply only until patch 3, I think this serie needs a rebase,
do you have
an updated branch or can you point me to the staging SHA to build it? (hope
it’s not too far
from now)
Cheers,
Luca
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