Subject: Re: [PATCH 35/37] KVM: PPC: booke: Support perfmon interrupts

From: Scott Wood <[email-masked]>
Date: Fri, 24 Feb 2012 17:33:58 -0600

On 02/24/2012 08:26 AM, Alexander Graf wrote:
> When during guest context we get a performance monitor interrupt, we
> currently bail out and oops. Let's route it to its correct handler
> instead.
> 
> Signed-off-by: Alexander Graf <[email-masked]>
> ---
>  arch/powerpc/kvm/booke.c |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> index 7adef28..423701b 100644
> --- a/arch/powerpc/kvm/booke.c
> +++ b/arch/powerpc/kvm/booke.c
> @@ -677,6 +677,10 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
>  		r = RESUME_GUEST;
>  		break;
>  
> +	case BOOKE_INTERRUPT_PERFORMANCE_MONITOR:
> +		r = RESUME_GUEST;
> +		break;
> +
>  	case BOOKE_INTERRUPT_HV_PRIV:
>  		r = emulation_exit(run, vcpu);
>  		break;

Why do we need to call timer_interrupt() explicitly, but can rely on
automatic retriggering for perfmon?

-Scott