Re: [Qemu-devel] [RFC PATCH 11/26] ppc/xics: introduce a print_info() handler to the ICS and ICP objects

[David Gibson <david@gibson.dropbear.id.au>]

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On Wed, Jul 05, 2017 at 07:13:24PM +0200, Cédric Le Goater wrote:
> This handler will be used to customize the ouput of the XIVE interrupt
> source and presenter objects.

I'm not really happy with this without having a clear idea of where
this is heading - are you trying to share ICP and or ICS object
classes between XICS and XIVE, or will they eventually be separated
again?

> 
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
>  hw/intc/xics.c        | 36 ++++++++++++++++++++++++------------
>  include/hw/ppc/xics.h |  2 ++
>  2 files changed, 26 insertions(+), 12 deletions(-)
> 
> diff --git a/hw/intc/xics.c b/hw/intc/xics.c
> index faa5c631f655..7837c2022b4a 100644
> --- a/hw/intc/xics.c
> +++ b/hw/intc/xics.c
> @@ -40,18 +40,26 @@
>  
>  void icp_pic_print_info(ICPState *icp, Monitor *mon)
>  {
> +    ICPStateClass *k = ICP_GET_CLASS(icp);
>      int cpu_index = icp->cs ? icp->cs->cpu_index : -1;
>  
>      if (!icp->output) {
>          return;
>      }
> -    monitor_printf(mon, "CPU %d XIRR=%08x (%p) PP=%02x MFRR=%02x\n",
> -                   cpu_index, icp->xirr, icp->xirr_owner,
> -                   icp->pending_priority, icp->mfrr);
> +
> +    monitor_printf(mon, "CPU %d ", cpu_index);
> +    if (k->print_info) {
> +        k->print_info(icp, mon);
> +    } else {
> +        monitor_printf(mon, "XIRR=%08x (%p) PP=%02x MFRR=%02x\n",
> +                       icp->xirr, icp->xirr_owner,
> +                       icp->pending_priority, icp->mfrr);
> +    }
>  }
>  
>  void ics_pic_print_info(ICSState *ics, Monitor *mon)
>  {
> +    ICSStateClass *k = ICS_BASE_GET_CLASS(ics);
>      uint32_t i;
>  
>      monitor_printf(mon, "ICS %4x..%4x %p\n",
> @@ -61,17 +69,21 @@ void ics_pic_print_info(ICSState *ics, Monitor *mon)
>          return;
>      }
>  
> -    for (i = 0; i < ics->nr_irqs; i++) {
> -        ICSIRQState *irq = ics->irqs + i;
> +    if (k->print_info) {
> +        k->print_info(ics, mon);
> +    } else {
> +        for (i = 0; i < ics->nr_irqs; i++) {
> +            ICSIRQState *irq = ics->irqs + i;
>  
> -        if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) {
> -            continue;
> +            if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) {
> +                continue;
> +            }
> +            monitor_printf(mon, "  %4x %s %02x %02x\n",
> +                           ics->offset + i,
> +                           (irq->flags & XICS_FLAGS_IRQ_LSI) ?
> +                           "LSI" : "MSI",
> +                           irq->priority, irq->status);
>          }
> -        monitor_printf(mon, "  %4x %s %02x %02x\n",
> -                       ics->offset + i,
> -                       (irq->flags & XICS_FLAGS_IRQ_LSI) ?
> -                       "LSI" : "MSI",
> -                       irq->priority, irq->status);
>      }
>  }
>  
> diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
> index 28d248abad61..902f3bfd0e33 100644
> --- a/include/hw/ppc/xics.h
> +++ b/include/hw/ppc/xics.h
> @@ -69,6 +69,7 @@ struct ICPStateClass {
>      void (*pre_save)(ICPState *icp);
>      int (*post_load)(ICPState *icp, int version_id);
>      void (*reset)(ICPState *icp);
> +    void (*print_info)(ICPState *icp, Monitor *mon);
>  };
>  
>  struct ICPState {
> @@ -119,6 +120,7 @@ struct ICSStateClass {
>      void (*reject)(ICSState *s, uint32_t irq);
>      void (*resend)(ICSState *s);
>      void (*eoi)(ICSState *s, uint32_t irq);
> +    void (*print_info)(ICSState *s, Monitor *mon);
>  };
>  
>  struct ICSState {

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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