Messages in this thread | | | Date | Thu, 16 Sep 2021 22:30:45 +0000 | From | Sean Christopherson <> | Subject | Re: [PATCH v2 05/13] perf: Force architectures to opt-in to guest callbacks |
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On Sat, Aug 28, 2021, Peter Zijlstra wrote: > On Fri, Aug 27, 2021 at 05:35:50PM -0700, Sean Christopherson wrote: > > diff --git a/init/Kconfig b/init/Kconfig > > index 55f9f7738ebb..9ef51ae53977 100644 > > --- a/init/Kconfig > > +++ b/init/Kconfig > > @@ -1776,6 +1776,9 @@ config HAVE_PERF_EVENTS > > help > > See tools/perf/design.txt for details. > > > > +config HAVE_GUEST_PERF_EVENTS > > + bool > depends on HAVE_KVM > > ?
Ah, nice! We can go even further to:
depends on HAVE_PERF_EVENTS && HAVE_KVM
though I'm pretty sure all architectures that select HAVE_KVM also select HAVE_PERF_EVENTS.
Huh. arm64 doesn't select HAVE_KVM even though it selects almost literally every other HAVE_KVM_* config. arm64 has some other weirdness with CONFIG_KVM, I'll add a patch or two to fix that stuff and amend this patch as above.
Thanks again!
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