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 <[email protected]>
> ---
> 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,
M.
--
Jazz is not dead. It just smells funny...
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