On Wed, Nov 21, 2018 at 04:04:03PM +0000, Marc Zyngier wrote:
> On 20/11/2018 14:15, Andrew Murray wrote:
> > In order to effeciently enable/disable guest/host only perf counters
> > at guest entry/exit we add bitfields to kvm_cpu_context for guest and
> > host only events as well as accessors for updating them.
> >
> > Signed-off-by: Andrew Murray <andrew.murray@xxxxxxx>
> > ---
> > arch/arm64/include/asm/kvm_host.h | 20 ++++++++++++++++++++
> > 1 file changed, 20 insertions(+)
> >
> > diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
> > index 1550192..b6f998b 100644
> > --- a/arch/arm64/include/asm/kvm_host.h
> > +++ b/arch/arm64/include/asm/kvm_host.h
> > @@ -203,6 +203,8 @@ struct kvm_cpu_context {
> > };
> >
> > struct kvm_vcpu *__hyp_running_vcpu;
> > + u32 events_host_only;
> > + u32 events_guest_only;
> > };
> >
> > typedef struct kvm_cpu_context kvm_cpu_context_t;
> > @@ -472,6 +474,24 @@ static inline int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
> > {
> > return kvm_arch_vcpu_run_map_fp(vcpu);
> > }
> > +static inline void kvm_set_clr_host_pmu_events(u32 clr, u32 set)
>
> nit: keep the arguments in an order that match the function name (saves
> a lot of brain power...)
Thanks, every bit helps.
Andrew Murray
>
> Thanks,
>
> M.
> --
> Jazz is not dead. It just smells funny...
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