Re: [PATCH] perf kvm stat: Update the exit reason mappings

[Gautam Menghani]

On Wed, May 13, 2026 at 09:33:10AM +0530, Ritesh Harjani wrote:
> 
> ++ linuxppc-dev
> 
> Gautam Menghani <gautam@xxxxxxxxxxxxx> writes:
> 
> > On Tue, May 12, 2026 at 08:25:08AM -0700, Ian Rogers wrote:
> >> On Tue, May 12, 2026 at 5:04 AM Gautam Menghani <gautam@xxxxxxxxxxxxx> wrote:
> >> >
> >> > Sync the exit reason mappings with the mappings in trace_book3s.h
> >> 
> >> I see:
> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/kvm/trace_book3s.h
> >> Would it make sense to have a copy in perf and use the check headers
> >> code to keep them in sync?
> >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/tools/perf/check-headers.sh
> >
> > I'll take a look at this, thanks
> >
> >> 
> >> Could you add the commits that add the H_VIRT and H_FAC_UNAVAIL
> >> definitions? I don't see them in Linus' tree yet.
> >
> > I posted that patch earlier today - https://lore.kernel.org/linuxppc-dev/20260512115724.59299-1-gautam@xxxxxxxxxxxxx/
> > should've pasted the link in the patch
> >
> 
> For patches not yet merged and having such a dependency, this could cause
> confusion. What I generally tend to do in such case is, group this
> patch (changes in tools/perf/util/kvm-stat-arch/book3s_hv_exits.h) into
> the same series which adds H_FAC_UNAVAIL to trace_book3s.h [1].
> This way it is easier for everyone to keep track of the dependencies.
> 
> [1]: https://lore.kernel.org/linuxppc-dev/20260512115724.59299-1-gautam@xxxxxxxxxxxxx/

My patch description is incorrect, there actually isn't a dependency -
both patches can go in independently. I'll send a v2 to make this clear.

> 
> Note, that we should still cc the relevant mailing lists, reviewers and
> maintainers to get an Acked-by. Since the changes in this patch are
> largely powerpc specific, so IMO, it should be ok even if it goes via
> powerpc tree via a common series, as long as everyone agrees.

Yes noted, thanks.

- Gautam