On 27/03/19 15:12, Vitaly Kuznetsov wrote:
> In __apic_accept_irq() interface trig_mode is int and actually on some code
> paths it is set above u8:
> 
> kvm_apic_set_irq() extracts it from 'struct kvm_lapic_irq' where trig_mode
> is u16. This is done on purpose as e.g. kvm_set_msi_irq() sets it to
> (1 << 15) & e->msi.data
> 
> kvm_apic_local_deliver sets it to reg & (1 << 15).
> 
> Fix the immediate issue by making 'tm' into u16. We may also want to adjust
> __apic_accept_irq() interface and use proper sizes for vector, level,
> trig_mode but this is not urgent.
> 
> Signed-off-by: Vitaly Kuznetsov <[email protected]>
> ---
>  arch/x86/kvm/trace.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
> index 6432d08c7de7..4d47a2631d1f 100644
> --- a/arch/x86/kvm/trace.h
> +++ b/arch/x86/kvm/trace.h
> @@ -438,13 +438,13 @@ TRACE_EVENT(kvm_apic_ipi,
>  );
>  
>  TRACE_EVENT(kvm_apic_accept_irq,
> -         TP_PROTO(__u32 apicid, __u16 dm, __u8 tm, __u8 vec),
> +         TP_PROTO(__u32 apicid, __u16 dm, __u16 tm, __u8 vec),
>           TP_ARGS(apicid, dm, tm, vec),
>  
>       TP_STRUCT__entry(
>               __field(        __u32,          apicid          )
>               __field(        __u16,          dm              )
> -             __field(        __u8,           tm              )
> +             __field(        __u16,          tm              )
>               __field(        __u8,           vec             )
>       ),
>  
> 

Queued, thanks.

Paolo

Reply via email to