[PATCH v6 0/3] arm64: Add BRBE support for bpf_get_branch_snapshot()

[Andrii Nakryiko]

On Wed, Sep 23, 2026 at 2:15 AM James Clark <james.clark at linaro.org> wrote:
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> On 22/09/2026 21:40, Andrii Nakryiko wrote:
> > On Tue, Sep 1, 2026 at 6:45 AM Puranjay Mohan <puranjay12 at gmail.com> wrote:
> >>
> >> Hi James,
> >>
> >> Can you review this version of the patchset? It is implementing what
> >> we discussed in the thread on the last version.
> >>
> >
> > James, do you mind reviewing the patches again, seems like Puranjay
> > went with the implementation you suggested, would be nice to review
> > and ack, if it looks good to you.
> >
> > Mark, Will, you guys seems to be designated as maintainers for
> > drivers/perf/arm_brbe.c, can you please take a look and give your
> > feedback as well? This is important and useful feature for newer arm64
> > CPUs, it would be great to get access to this functionality that we
> > had on x86-64 side for a long while now. Please help get this upstream
> > or, if it's not in the right shape, guide Puranjay towards a better
> > implementation. Thank you!
> >
>
> LGTM, and the Sashiko review is good too. It does conflict with the
> FEAT_NMI patches on the list, and you'd have to disable NMIs but as it
> stands right now it's ok.
>
> Reviewed-by: James Clark <james.clark at linaro.org>
>

Thank you, James! Mark, Will, do you have any suggestions on correct
sequencing of things and how we should proceed? Thanks!
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