diff mbox series

[v2,22/33] spapr, xics, xive: Move irq claim and free from SpaprIrq to SpaprInterruptController

Message ID 20190927055028.11493-23-david@gibson.dropbear.id.au
State New
Headers show
Series spapr: IRQ subsystem cleanup | expand

Commit Message

David Gibson Sept. 27, 2019, 5:50 a.m. UTC 
These methods, like cpu_intc_create, really belong to the interrupt
controller, but need to be called on all possible intcs.

Like cpu_intc_create, therefore, make them methods on the intc and
always call it for all existing intcs.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/intc/spapr_xive.c        |  71 +++++++++++-----------
 hw/intc/xics_spapr.c        |  29 +++++++++
 hw/ppc/spapr_irq.c          | 114 ++++++++++++------------------------
 include/hw/ppc/spapr_irq.h  |   5 +-
 include/hw/ppc/spapr_xive.h |   2 -
 5 files changed, 107 insertions(+), 114 deletions(-)

Comments

Greg Kurz Sept. 27, 2019, 12:16 p.m. UTC | #1 
On Fri, 27 Sep 2019 15:50:17 +1000
David Gibson <david@gibson.dropbear.id.au> wrote:

> These methods, like cpu_intc_create, really belong to the interrupt
> controller, but need to be called on all possible intcs.
> 
> Like cpu_intc_create, therefore, make them methods on the intc and
> always call it for all existing intcs.
> 
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> ---
>  hw/intc/spapr_xive.c        |  71 +++++++++++-----------
>  hw/intc/xics_spapr.c        |  29 +++++++++
>  hw/ppc/spapr_irq.c          | 114 ++++++++++++------------------------
>  include/hw/ppc/spapr_irq.h  |   5 +-
>  include/hw/ppc/spapr_xive.h |   2 -
>  5 files changed, 107 insertions(+), 114 deletions(-)
> 
> diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
> index 9338daba3d..ff1a175b44 100644
> --- a/hw/intc/spapr_xive.c
> +++ b/hw/intc/spapr_xive.c
> @@ -487,6 +487,42 @@ static const VMStateDescription vmstate_spapr_xive = {
>      },
>  };
>  
> +static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn,
> +                                bool lsi, Error **errp)
> +{
> +    SpaprXive *xive = SPAPR_XIVE(intc);
> +    XiveSource *xsrc = &xive->source;
> +
> +    assert(lisn < xive->nr_irqs);
> +
> +    if (xive_eas_is_valid(&xive->eat[lisn])) {
> +        error_setg(errp, "IRQ %d is not free", lisn);
> +        return -EBUSY;
> +    }
> +
> +    /*
> +     * Set default values when allocating an IRQ number
> +     */
> +    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> +    if (lsi) {
> +        xive_source_irq_set_lsi(xsrc, lisn);
> +    }
> +
> +    if (kvm_irqchip_in_kernel()) {
> +        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> +    }
> +
> +    return 0;
> +}
> +
> +static void spapr_xive_free_irq(SpaprInterruptController *intc, int lisn)
> +{
> +    SpaprXive *xive = SPAPR_XIVE(intc);
> +    assert(lisn < xive->nr_irqs);
> +
> +    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> +}
> +
>  static Property spapr_xive_properties[] = {
>      DEFINE_PROP_UINT32("nr-irqs", SpaprXive, nr_irqs, 0),
>      DEFINE_PROP_UINT32("nr-ends", SpaprXive, nr_ends, 0),
> @@ -536,6 +572,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
>      xrc->get_tctx = spapr_xive_get_tctx;
>  
>      sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
> +    sicc->claim_irq = spapr_xive_claim_irq;
> +    sicc->free_irq = spapr_xive_free_irq;
>  }
>  
>  static const TypeInfo spapr_xive_info = {
> @@ -557,39 +595,6 @@ static void spapr_xive_register_types(void)
>  
>  type_init(spapr_xive_register_types)
>  
> -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp)
> -{
> -    XiveSource *xsrc = &xive->source;
> -
> -    assert(lisn < xive->nr_irqs);
> -
> -    if (xive_eas_is_valid(&xive->eat[lisn])) {
> -        error_setg(errp, "IRQ %d is not free", lisn);
> -        return -EBUSY;
> -    }
> -
> -    /*
> -     * Set default values when allocating an IRQ number
> -     */
> -    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> -    if (lsi) {
> -        xive_source_irq_set_lsi(xsrc, lisn);
> -    }
> -
> -    if (kvm_irqchip_in_kernel()) {
> -        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> -    }
> -
> -    return 0;
> -}
> -
> -void spapr_xive_irq_free(SpaprXive *xive, int lisn)
> -{
> -    assert(lisn < xive->nr_irqs);
> -
> -    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> -}
> -
>  /*
>   * XIVE hcalls
>   *
> diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
> index 946311b858..224fe1efcd 100644
> --- a/hw/intc/xics_spapr.c
> +++ b/hw/intc/xics_spapr.c
> @@ -346,6 +346,33 @@ static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
>      return 0;
>  }
>  
> +static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq,
> +                                bool lsi, Error **errp)
> +{
> +    ICSState *ics = ICS_SPAPR(intc);
> +
> +    assert(ics);
> +    assert(ics_valid_irq(ics, irq));
> +
> +    if (!ics_irq_free(ics, irq - ics->offset)) {
> +        error_setg(errp, "IRQ %d is not free", irq);
> +        return -EBUSY;
> +    }
> +
> +    ics_set_irq_type(ics, irq - ics->offset, lsi);
> +    return 0;
> +}
> +
> +static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq)
> +{
> +    ICSState *ics = ICS_SPAPR(intc);
> +    uint32_t srcno = irq - ics->offset;
> +
> +    assert(ics_valid_irq(ics, irq));
> +
> +    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> +}
> +
>  static void ics_spapr_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> @@ -355,6 +382,8 @@ static void ics_spapr_class_init(ObjectClass *klass, void *data)
>      device_class_set_parent_realize(dc, ics_spapr_realize,
>                                      &isc->parent_realize);
>      sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
> +    sicc->claim_irq = xics_spapr_claim_irq;
> +    sicc->free_irq = xics_spapr_free_irq;
>  }
>  
>  static const TypeInfo ics_spapr_info = {
> diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
> index a855dfe4e9..ea44378d8c 100644
> --- a/hw/ppc/spapr_irq.c
> +++ b/hw/ppc/spapr_irq.c
> @@ -98,33 +98,6 @@ static void spapr_irq_init_kvm(SpaprMachineState *spapr,
>   * XICS IRQ backend.
>   */
>  
> -static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
> -                                Error **errp)
> -{
> -    ICSState *ics = spapr->ics;
> -
> -    assert(ics);
> -    assert(ics_valid_irq(ics, irq));
> -
> -    if (!ics_irq_free(ics, irq - ics->offset)) {
> -        error_setg(errp, "IRQ %d is not free", irq);
> -        return -1;
> -    }
> -
> -    ics_set_irq_type(ics, irq - ics->offset, lsi);
> -    return 0;
> -}
> -
> -static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
> -{
> -    ICSState *ics = spapr->ics;
> -    uint32_t srcno = irq - ics->offset;
> -
> -    assert(ics_valid_irq(ics, irq));
> -
> -    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> -}
> -
>  static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
>  {
>      CPUState *cs;
> @@ -182,8 +155,6 @@ SpaprIrq spapr_irq_xics = {
>      .xics        = true,
>      .xive        = false,
>  
> -    .claim       = spapr_irq_claim_xics,
> -    .free        = spapr_irq_free_xics,
>      .print_info  = spapr_irq_print_info_xics,
>      .dt_populate = spapr_dt_xics,
>      .post_load   = spapr_irq_post_load_xics,
> @@ -196,17 +167,6 @@ SpaprIrq spapr_irq_xics = {
>   * XIVE IRQ backend.
>   */
>  
> -static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
> -                                Error **errp)
> -{
> -    return spapr_xive_irq_claim(spapr->xive, irq, lsi, errp);
> -}
> -
> -static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
> -{
> -    spapr_xive_irq_free(spapr->xive, irq);
> -}
> -
>  static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
>                                        Monitor *mon)
>  {
> @@ -272,8 +232,6 @@ SpaprIrq spapr_irq_xive = {
>      .xics        = false,
>      .xive        = true,
>  
> -    .claim       = spapr_irq_claim_xive,
> -    .free        = spapr_irq_free_xive,
>      .print_info  = spapr_irq_print_info_xive,
>      .dt_populate = spapr_dt_xive,
>      .post_load   = spapr_irq_post_load_xive,
> @@ -301,33 +259,6 @@ static SpaprIrq *spapr_irq_current(SpaprMachineState *spapr)
>          &spapr_irq_xive : &spapr_irq_xics;
>  }
>  
> -static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
> -                                Error **errp)
> -{
> -    Error *local_err = NULL;
> -    int ret;
> -
> -    ret = spapr_irq_xics.claim(spapr, irq, lsi, &local_err);
> -    if (local_err) {
> -        error_propagate(errp, local_err);
> -        return ret;
> -    }
> -
> -    ret = spapr_irq_xive.claim(spapr, irq, lsi, &local_err);
> -    if (local_err) {
> -        error_propagate(errp, local_err);
> -        return ret;
> -    }
> -
> -    return ret;
> -}
> -
> -static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
> -{
> -    spapr_irq_xics.free(spapr, irq);
> -    spapr_irq_xive.free(spapr, irq);
> -}
> -
>  static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
>  {
>      spapr_irq_current(spapr)->print_info(spapr, mon);
> @@ -401,8 +332,6 @@ SpaprIrq spapr_irq_dual = {
>      .xics        = true,
>      .xive        = true,
>  
> -    .claim       = spapr_irq_claim_dual,
> -    .free        = spapr_irq_free_dual,
>      .print_info  = spapr_irq_print_info_dual,
>      .dt_populate = spapr_irq_dt_populate_dual,
>      .post_load   = spapr_irq_post_load_dual,
> @@ -567,10 +496,12 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
>  
>          /* Enable the CPU IPIs */
>          for (i = 0; i < nr_servers; ++i) {
> +            SpaprInterruptControllerClass *sicc
> +                = SPAPR_INTC_GET_CLASS(spapr->xive);
>              Error *local_err = NULL;
>  
> -            spapr_xive_irq_claim(spapr->xive, SPAPR_IRQ_IPI + i,
> -                                 false, &local_err);
> +            sicc->claim_irq(SPAPR_INTC(spapr->xive), SPAPR_IRQ_IPI + i,
> +                            false, &local_err);
>              if (local_err) {
>                  goto out;
>              }
> @@ -588,10 +519,30 @@ out:
>  
>  int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
>  {
> +    int rc;
> +
>      assert(irq >= SPAPR_XIRQ_BASE);
>      assert(irq < (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
>  
> -    return spapr->irq->claim(spapr, irq, lsi, errp);
> +    if (spapr->xive) {
> +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->xive);
> +
> +        rc = sicc->claim_irq(SPAPR_INTC(spapr->xive), irq, lsi, errp);
> +        if (rc < 0) {
> +            return rc;
> +        }
> +    }
> +
> +    if (spapr->ics) {
> +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->ics);
> +
> +        rc = sicc->claim_irq(SPAPR_INTC(spapr->ics), irq, lsi, errp);
> +        if (rc < 0) {
> +            return rc;
> +        }
> +    }
> +

We don't really need an indirection here since we explicitly check
spapr->xive and spapr->ics. Calling directly spapr_xive_claim_irq() and
xics_spapr_claim_irq() would allow to avoid the method boiler plate and
be more explicit IMHO.

> +    return 0;
>  }
>  
>  void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
> @@ -602,7 +553,18 @@ void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
>      assert((irq + num) <= (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
>  
>      for (i = irq; i < (irq + num); i++) {
> -        spapr->irq->free(spapr, irq);
> +        if (spapr->xive) {
> +            SpaprInterruptController *intc = SPAPR_INTC(spapr->xive);
> +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> +
> +            sicc->free_irq(intc, irq);
> +        }
> +        if (spapr->ics) {
> +            SpaprInterruptController *intc = SPAPR_INTC(spapr->ics);
> +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> +
> +            sicc->free_irq(intc, irq);
> +        }

Same here.

>      }
>  }
>  
> @@ -727,8 +689,6 @@ SpaprIrq spapr_irq_xics_legacy = {
>      .xics        = true,
>      .xive        = false,
>  
> -    .claim       = spapr_irq_claim_xics,
> -    .free        = spapr_irq_free_xics,
>      .print_info  = spapr_irq_print_info_xics,
>      .dt_populate = spapr_dt_xics,
>      .post_load   = spapr_irq_post_load_xics,
> diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
> index 30d660ff1e..616086f9bb 100644
> --- a/include/hw/ppc/spapr_irq.h
> +++ b/include/hw/ppc/spapr_irq.h
> @@ -50,6 +50,9 @@ typedef struct SpaprInterruptControllerClass {
>       */
>      int (*cpu_intc_create)(SpaprInterruptController *intc,
>                              PowerPCCPU *cpu, Error **errp);
> +    int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi,
> +                     Error **errp);
> +    void (*free_irq)(SpaprInterruptController *intc, int irq);
>  } SpaprInterruptControllerClass;
>  
>  void spapr_irq_print_info(SpaprMachineState *spapr, Monitor *mon);
> @@ -70,8 +73,6 @@ typedef struct SpaprIrq {
>      bool        xics;
>      bool        xive;
>  
> -    int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
> -    void (*free)(SpaprMachineState *spapr, int irq);
>      void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
>      void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
>                          void *fdt, uint32_t phandle);
> diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
> index 0df20a6590..8f875673f5 100644
> --- a/include/hw/ppc/spapr_xive.h
> +++ b/include/hw/ppc/spapr_xive.h
> @@ -54,8 +54,6 @@ typedef struct SpaprXive {
>   */
>  #define SPAPR_XIVE_BLOCK_ID 0x0
>  
> -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp);
> -void spapr_xive_irq_free(SpaprXive *xive, int lisn);
>  void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon);
>  int spapr_xive_post_load(SpaprXive *xive, int version_id);
>
David Gibson Sept. 30, 2019, 2:39 a.m. UTC | #2 
On Fri, Sep 27, 2019 at 02:16:12PM +0200, Greg Kurz wrote:
> On Fri, 27 Sep 2019 15:50:17 +1000
> David Gibson <david@gibson.dropbear.id.au> wrote:
> 
> > These methods, like cpu_intc_create, really belong to the interrupt
> > controller, but need to be called on all possible intcs.
> > 
> > Like cpu_intc_create, therefore, make them methods on the intc and
> > always call it for all existing intcs.
> > 
> > Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> > ---
> >  hw/intc/spapr_xive.c        |  71 +++++++++++-----------
> >  hw/intc/xics_spapr.c        |  29 +++++++++
> >  hw/ppc/spapr_irq.c          | 114 ++++++++++++------------------------
> >  include/hw/ppc/spapr_irq.h  |   5 +-
> >  include/hw/ppc/spapr_xive.h |   2 -
> >  5 files changed, 107 insertions(+), 114 deletions(-)
> > 
> > diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
> > index 9338daba3d..ff1a175b44 100644
> > --- a/hw/intc/spapr_xive.c
> > +++ b/hw/intc/spapr_xive.c
> > @@ -487,6 +487,42 @@ static const VMStateDescription vmstate_spapr_xive = {
> >      },
> >  };
> >  
> > +static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn,
> > +                                bool lsi, Error **errp)
> > +{
> > +    SpaprXive *xive = SPAPR_XIVE(intc);
> > +    XiveSource *xsrc = &xive->source;
> > +
> > +    assert(lisn < xive->nr_irqs);
> > +
> > +    if (xive_eas_is_valid(&xive->eat[lisn])) {
> > +        error_setg(errp, "IRQ %d is not free", lisn);
> > +        return -EBUSY;
> > +    }
> > +
> > +    /*
> > +     * Set default values when allocating an IRQ number
> > +     */
> > +    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> > +    if (lsi) {
> > +        xive_source_irq_set_lsi(xsrc, lisn);
> > +    }
> > +
> > +    if (kvm_irqchip_in_kernel()) {
> > +        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> > +    }
> > +
> > +    return 0;
> > +}
> > +
> > +static void spapr_xive_free_irq(SpaprInterruptController *intc, int lisn)
> > +{
> > +    SpaprXive *xive = SPAPR_XIVE(intc);
> > +    assert(lisn < xive->nr_irqs);
> > +
> > +    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> > +}
> > +
> >  static Property spapr_xive_properties[] = {
> >      DEFINE_PROP_UINT32("nr-irqs", SpaprXive, nr_irqs, 0),
> >      DEFINE_PROP_UINT32("nr-ends", SpaprXive, nr_ends, 0),
> > @@ -536,6 +572,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
> >      xrc->get_tctx = spapr_xive_get_tctx;
> >  
> >      sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
> > +    sicc->claim_irq = spapr_xive_claim_irq;
> > +    sicc->free_irq = spapr_xive_free_irq;
> >  }
> >  
> >  static const TypeInfo spapr_xive_info = {
> > @@ -557,39 +595,6 @@ static void spapr_xive_register_types(void)
> >  
> >  type_init(spapr_xive_register_types)
> >  
> > -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp)
> > -{
> > -    XiveSource *xsrc = &xive->source;
> > -
> > -    assert(lisn < xive->nr_irqs);
> > -
> > -    if (xive_eas_is_valid(&xive->eat[lisn])) {
> > -        error_setg(errp, "IRQ %d is not free", lisn);
> > -        return -EBUSY;
> > -    }
> > -
> > -    /*
> > -     * Set default values when allocating an IRQ number
> > -     */
> > -    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> > -    if (lsi) {
> > -        xive_source_irq_set_lsi(xsrc, lisn);
> > -    }
> > -
> > -    if (kvm_irqchip_in_kernel()) {
> > -        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> > -    }
> > -
> > -    return 0;
> > -}
> > -
> > -void spapr_xive_irq_free(SpaprXive *xive, int lisn)
> > -{
> > -    assert(lisn < xive->nr_irqs);
> > -
> > -    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> > -}
> > -
> >  /*
> >   * XIVE hcalls
> >   *
> > diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
> > index 946311b858..224fe1efcd 100644
> > --- a/hw/intc/xics_spapr.c
> > +++ b/hw/intc/xics_spapr.c
> > @@ -346,6 +346,33 @@ static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
> >      return 0;
> >  }
> >  
> > +static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq,
> > +                                bool lsi, Error **errp)
> > +{
> > +    ICSState *ics = ICS_SPAPR(intc);
> > +
> > +    assert(ics);
> > +    assert(ics_valid_irq(ics, irq));
> > +
> > +    if (!ics_irq_free(ics, irq - ics->offset)) {
> > +        error_setg(errp, "IRQ %d is not free", irq);
> > +        return -EBUSY;
> > +    }
> > +
> > +    ics_set_irq_type(ics, irq - ics->offset, lsi);
> > +    return 0;
> > +}
> > +
> > +static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq)
> > +{
> > +    ICSState *ics = ICS_SPAPR(intc);
> > +    uint32_t srcno = irq - ics->offset;
> > +
> > +    assert(ics_valid_irq(ics, irq));
> > +
> > +    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> > +}
> > +
> >  static void ics_spapr_class_init(ObjectClass *klass, void *data)
> >  {
> >      DeviceClass *dc = DEVICE_CLASS(klass);
> > @@ -355,6 +382,8 @@ static void ics_spapr_class_init(ObjectClass *klass, void *data)
> >      device_class_set_parent_realize(dc, ics_spapr_realize,
> >                                      &isc->parent_realize);
> >      sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
> > +    sicc->claim_irq = xics_spapr_claim_irq;
> > +    sicc->free_irq = xics_spapr_free_irq;
> >  }
> >  
> >  static const TypeInfo ics_spapr_info = {
> > diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
> > index a855dfe4e9..ea44378d8c 100644
> > --- a/hw/ppc/spapr_irq.c
> > +++ b/hw/ppc/spapr_irq.c
> > @@ -98,33 +98,6 @@ static void spapr_irq_init_kvm(SpaprMachineState *spapr,
> >   * XICS IRQ backend.
> >   */
> >  
> > -static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
> > -                                Error **errp)
> > -{
> > -    ICSState *ics = spapr->ics;
> > -
> > -    assert(ics);
> > -    assert(ics_valid_irq(ics, irq));
> > -
> > -    if (!ics_irq_free(ics, irq - ics->offset)) {
> > -        error_setg(errp, "IRQ %d is not free", irq);
> > -        return -1;
> > -    }
> > -
> > -    ics_set_irq_type(ics, irq - ics->offset, lsi);
> > -    return 0;
> > -}
> > -
> > -static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
> > -{
> > -    ICSState *ics = spapr->ics;
> > -    uint32_t srcno = irq - ics->offset;
> > -
> > -    assert(ics_valid_irq(ics, irq));
> > -
> > -    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> > -}
> > -
> >  static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
> >  {
> >      CPUState *cs;
> > @@ -182,8 +155,6 @@ SpaprIrq spapr_irq_xics = {
> >      .xics        = true,
> >      .xive        = false,
> >  
> > -    .claim       = spapr_irq_claim_xics,
> > -    .free        = spapr_irq_free_xics,
> >      .print_info  = spapr_irq_print_info_xics,
> >      .dt_populate = spapr_dt_xics,
> >      .post_load   = spapr_irq_post_load_xics,
> > @@ -196,17 +167,6 @@ SpaprIrq spapr_irq_xics = {
> >   * XIVE IRQ backend.
> >   */
> >  
> > -static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
> > -                                Error **errp)
> > -{
> > -    return spapr_xive_irq_claim(spapr->xive, irq, lsi, errp);
> > -}
> > -
> > -static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
> > -{
> > -    spapr_xive_irq_free(spapr->xive, irq);
> > -}
> > -
> >  static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
> >                                        Monitor *mon)
> >  {
> > @@ -272,8 +232,6 @@ SpaprIrq spapr_irq_xive = {
> >      .xics        = false,
> >      .xive        = true,
> >  
> > -    .claim       = spapr_irq_claim_xive,
> > -    .free        = spapr_irq_free_xive,
> >      .print_info  = spapr_irq_print_info_xive,
> >      .dt_populate = spapr_dt_xive,
> >      .post_load   = spapr_irq_post_load_xive,
> > @@ -301,33 +259,6 @@ static SpaprIrq *spapr_irq_current(SpaprMachineState *spapr)
> >          &spapr_irq_xive : &spapr_irq_xics;
> >  }
> >  
> > -static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
> > -                                Error **errp)
> > -{
> > -    Error *local_err = NULL;
> > -    int ret;
> > -
> > -    ret = spapr_irq_xics.claim(spapr, irq, lsi, &local_err);
> > -    if (local_err) {
> > -        error_propagate(errp, local_err);
> > -        return ret;
> > -    }
> > -
> > -    ret = spapr_irq_xive.claim(spapr, irq, lsi, &local_err);
> > -    if (local_err) {
> > -        error_propagate(errp, local_err);
> > -        return ret;
> > -    }
> > -
> > -    return ret;
> > -}
> > -
> > -static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
> > -{
> > -    spapr_irq_xics.free(spapr, irq);
> > -    spapr_irq_xive.free(spapr, irq);
> > -}
> > -
> >  static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
> >  {
> >      spapr_irq_current(spapr)->print_info(spapr, mon);
> > @@ -401,8 +332,6 @@ SpaprIrq spapr_irq_dual = {
> >      .xics        = true,
> >      .xive        = true,
> >  
> > -    .claim       = spapr_irq_claim_dual,
> > -    .free        = spapr_irq_free_dual,
> >      .print_info  = spapr_irq_print_info_dual,
> >      .dt_populate = spapr_irq_dt_populate_dual,
> >      .post_load   = spapr_irq_post_load_dual,
> > @@ -567,10 +496,12 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
> >  
> >          /* Enable the CPU IPIs */
> >          for (i = 0; i < nr_servers; ++i) {
> > +            SpaprInterruptControllerClass *sicc
> > +                = SPAPR_INTC_GET_CLASS(spapr->xive);
> >              Error *local_err = NULL;
> >  
> > -            spapr_xive_irq_claim(spapr->xive, SPAPR_IRQ_IPI + i,
> > -                                 false, &local_err);
> > +            sicc->claim_irq(SPAPR_INTC(spapr->xive), SPAPR_IRQ_IPI + i,
> > +                            false, &local_err);
> >              if (local_err) {
> >                  goto out;
> >              }
> > @@ -588,10 +519,30 @@ out:
> >  
> >  int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
> >  {
> > +    int rc;
> > +
> >      assert(irq >= SPAPR_XIRQ_BASE);
> >      assert(irq < (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
> >  
> > -    return spapr->irq->claim(spapr, irq, lsi, errp);
> > +    if (spapr->xive) {
> > +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->xive);
> > +
> > +        rc = sicc->claim_irq(SPAPR_INTC(spapr->xive), irq, lsi, errp);
> > +        if (rc < 0) {
> > +            return rc;
> > +        }
> > +    }
> > +
> > +    if (spapr->ics) {
> > +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->ics);
> > +
> > +        rc = sicc->claim_irq(SPAPR_INTC(spapr->ics), irq, lsi, errp);
> > +        if (rc < 0) {
> > +            return rc;
> > +        }
> > +    }
> > +
> 
> We don't really need an indirection here since we explicitly check
> spapr->xive and spapr->ics. Calling directly spapr_xive_claim_irq() and
> xics_spapr_claim_irq() would allow to avoid the method boiler plate and
> be more explicit IMHO.
> 
> > +    return 0;
> >  }
> >  
> >  void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
> > @@ -602,7 +553,18 @@ void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
> >      assert((irq + num) <= (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
> >  
> >      for (i = irq; i < (irq + num); i++) {
> > -        spapr->irq->free(spapr, irq);
> > +        if (spapr->xive) {
> > +            SpaprInterruptController *intc = SPAPR_INTC(spapr->xive);
> > +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> > +
> > +            sicc->free_irq(intc, irq);
> > +        }
> > +        if (spapr->ics) {
> > +            SpaprInterruptController *intc = SPAPR_INTC(spapr->ics);
> > +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> > +
> > +            sicc->free_irq(intc, irq);
> > +        }
> 
> Same here.

As with cpu_intc_create(), I'd prefer to keep both of these as is, but
I'll look at replacing spapr->ics and spapr->xive with something like
spapr->all_intcs[].

> 
> >      }
> >  }
> >  
> > @@ -727,8 +689,6 @@ SpaprIrq spapr_irq_xics_legacy = {
> >      .xics        = true,
> >      .xive        = false,
> >  
> > -    .claim       = spapr_irq_claim_xics,
> > -    .free        = spapr_irq_free_xics,
> >      .print_info  = spapr_irq_print_info_xics,
> >      .dt_populate = spapr_dt_xics,
> >      .post_load   = spapr_irq_post_load_xics,
> > diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
> > index 30d660ff1e..616086f9bb 100644
> > --- a/include/hw/ppc/spapr_irq.h
> > +++ b/include/hw/ppc/spapr_irq.h
> > @@ -50,6 +50,9 @@ typedef struct SpaprInterruptControllerClass {
> >       */
> >      int (*cpu_intc_create)(SpaprInterruptController *intc,
> >                              PowerPCCPU *cpu, Error **errp);
> > +    int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi,
> > +                     Error **errp);
> > +    void (*free_irq)(SpaprInterruptController *intc, int irq);
> >  } SpaprInterruptControllerClass;
> >  
> >  void spapr_irq_print_info(SpaprMachineState *spapr, Monitor *mon);
> > @@ -70,8 +73,6 @@ typedef struct SpaprIrq {
> >      bool        xics;
> >      bool        xive;
> >  
> > -    int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
> > -    void (*free)(SpaprMachineState *spapr, int irq);
> >      void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
> >      void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
> >                          void *fdt, uint32_t phandle);
> > diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
> > index 0df20a6590..8f875673f5 100644
> > --- a/include/hw/ppc/spapr_xive.h
> > +++ b/include/hw/ppc/spapr_xive.h
> > @@ -54,8 +54,6 @@ typedef struct SpaprXive {
> >   */
> >  #define SPAPR_XIVE_BLOCK_ID 0x0
> >  
> > -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp);
> > -void spapr_xive_irq_free(SpaprXive *xive, int lisn);
> >  void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon);
> >  int spapr_xive_post_load(SpaprXive *xive, int version_id);
> >  
>
Cédric Le Goater Sept. 30, 2019, 5:33 a.m. UTC | #3 
On 27/09/2019 07:50, David Gibson wrote:
> These methods, like cpu_intc_create, really belong to the interrupt
> controller, but need to be called on all possible intcs.
> 
> Like cpu_intc_create, therefore, make them methods on the intc and
> always call it for all existing intcs.
> 
> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
> ---
>  hw/intc/spapr_xive.c        |  71 +++++++++++-----------
>  hw/intc/xics_spapr.c        |  29 +++++++++
>  hw/ppc/spapr_irq.c          | 114 ++++++++++++------------------------
>  include/hw/ppc/spapr_irq.h  |   5 +-
>  include/hw/ppc/spapr_xive.h |   2 -
>  5 files changed, 107 insertions(+), 114 deletions(-)
> 
> diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
> index 9338daba3d..ff1a175b44 100644
> --- a/hw/intc/spapr_xive.c
> +++ b/hw/intc/spapr_xive.c
> @@ -487,6 +487,42 @@ static const VMStateDescription vmstate_spapr_xive = {
>      },
>  };
>  
> +static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn,
> +                                bool lsi, Error **errp)
> +{
> +    SpaprXive *xive = SPAPR_XIVE(intc);
> +    XiveSource *xsrc = &xive->source;
> +
> +    assert(lisn < xive->nr_irqs);
> +
> +    if (xive_eas_is_valid(&xive->eat[lisn])) {
> +        error_setg(errp, "IRQ %d is not free", lisn);
> +        return -EBUSY;
> +    }
> +
> +    /*
> +     * Set default values when allocating an IRQ number
> +     */
> +    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> +    if (lsi) {
> +        xive_source_irq_set_lsi(xsrc, lisn);
> +    }
> +
> +    if (kvm_irqchip_in_kernel()) {
> +        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> +    }
> +
> +    return 0;
> +}
> +
> +static void spapr_xive_free_irq(SpaprInterruptController *intc, int lisn)
> +{
> +    SpaprXive *xive = SPAPR_XIVE(intc);
> +    assert(lisn < xive->nr_irqs);
> +
> +    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> +}
> +
>  static Property spapr_xive_properties[] = {
>      DEFINE_PROP_UINT32("nr-irqs", SpaprXive, nr_irqs, 0),
>      DEFINE_PROP_UINT32("nr-ends", SpaprXive, nr_ends, 0),
> @@ -536,6 +572,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
>      xrc->get_tctx = spapr_xive_get_tctx;
>  
>      sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
> +    sicc->claim_irq = spapr_xive_claim_irq;
> +    sicc->free_irq = spapr_xive_free_irq;
>  }
>  
>  static const TypeInfo spapr_xive_info = {
> @@ -557,39 +595,6 @@ static void spapr_xive_register_types(void)
>  
>  type_init(spapr_xive_register_types)
>  
> -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp)
> -{
> -    XiveSource *xsrc = &xive->source;
> -
> -    assert(lisn < xive->nr_irqs);
> -
> -    if (xive_eas_is_valid(&xive->eat[lisn])) {
> -        error_setg(errp, "IRQ %d is not free", lisn);
> -        return -EBUSY;
> -    }
> -
> -    /*
> -     * Set default values when allocating an IRQ number
> -     */
> -    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
> -    if (lsi) {
> -        xive_source_irq_set_lsi(xsrc, lisn);
> -    }
> -
> -    if (kvm_irqchip_in_kernel()) {
> -        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
> -    }
> -
> -    return 0;
> -}
> -
> -void spapr_xive_irq_free(SpaprXive *xive, int lisn)
> -{
> -    assert(lisn < xive->nr_irqs);
> -
> -    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
> -}
> -
>  /*
>   * XIVE hcalls
>   *
> diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
> index 946311b858..224fe1efcd 100644
> --- a/hw/intc/xics_spapr.c
> +++ b/hw/intc/xics_spapr.c
> @@ -346,6 +346,33 @@ static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
>      return 0;
>  }
>  
> +static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq,
> +                                bool lsi, Error **errp)
> +{
> +    ICSState *ics = ICS_SPAPR(intc);
> +
> +    assert(ics);
> +    assert(ics_valid_irq(ics, irq));
> +
> +    if (!ics_irq_free(ics, irq - ics->offset)) {
> +        error_setg(errp, "IRQ %d is not free", irq);
> +        return -EBUSY;
> +    }
> +
> +    ics_set_irq_type(ics, irq - ics->offset, lsi);
> +    return 0;
> +}
> +
> +static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq)
> +{
> +    ICSState *ics = ICS_SPAPR(intc);
> +    uint32_t srcno = irq - ics->offset;
> +
> +    assert(ics_valid_irq(ics, irq));
> +
> +    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> +}
> +
>  static void ics_spapr_class_init(ObjectClass *klass, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(klass);
> @@ -355,6 +382,8 @@ static void ics_spapr_class_init(ObjectClass *klass, void *data)
>      device_class_set_parent_realize(dc, ics_spapr_realize,
>                                      &isc->parent_realize);
>      sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
> +    sicc->claim_irq = xics_spapr_claim_irq;
> +    sicc->free_irq = xics_spapr_free_irq;
>  }
>  
>  static const TypeInfo ics_spapr_info = {
> diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
> index a855dfe4e9..ea44378d8c 100644
> --- a/hw/ppc/spapr_irq.c
> +++ b/hw/ppc/spapr_irq.c
> @@ -98,33 +98,6 @@ static void spapr_irq_init_kvm(SpaprMachineState *spapr,
>   * XICS IRQ backend.
>   */
>  
> -static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
> -                                Error **errp)
> -{
> -    ICSState *ics = spapr->ics;
> -
> -    assert(ics);
> -    assert(ics_valid_irq(ics, irq));
> -
> -    if (!ics_irq_free(ics, irq - ics->offset)) {
> -        error_setg(errp, "IRQ %d is not free", irq);
> -        return -1;
> -    }
> -
> -    ics_set_irq_type(ics, irq - ics->offset, lsi);
> -    return 0;
> -}
> -
> -static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
> -{
> -    ICSState *ics = spapr->ics;
> -    uint32_t srcno = irq - ics->offset;
> -
> -    assert(ics_valid_irq(ics, irq));
> -
> -    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
> -}
> -
>  static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
>  {
>      CPUState *cs;
> @@ -182,8 +155,6 @@ SpaprIrq spapr_irq_xics = {
>      .xics        = true,
>      .xive        = false,
>  
> -    .claim       = spapr_irq_claim_xics,
> -    .free        = spapr_irq_free_xics,
>      .print_info  = spapr_irq_print_info_xics,
>      .dt_populate = spapr_dt_xics,
>      .post_load   = spapr_irq_post_load_xics,
> @@ -196,17 +167,6 @@ SpaprIrq spapr_irq_xics = {
>   * XIVE IRQ backend.
>   */
>  
> -static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
> -                                Error **errp)
> -{
> -    return spapr_xive_irq_claim(spapr->xive, irq, lsi, errp);
> -}
> -
> -static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
> -{
> -    spapr_xive_irq_free(spapr->xive, irq);
> -}
> -
>  static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
>                                        Monitor *mon)
>  {
> @@ -272,8 +232,6 @@ SpaprIrq spapr_irq_xive = {
>      .xics        = false,
>      .xive        = true,
>  
> -    .claim       = spapr_irq_claim_xive,
> -    .free        = spapr_irq_free_xive,
>      .print_info  = spapr_irq_print_info_xive,
>      .dt_populate = spapr_dt_xive,
>      .post_load   = spapr_irq_post_load_xive,
> @@ -301,33 +259,6 @@ static SpaprIrq *spapr_irq_current(SpaprMachineState *spapr)
>          &spapr_irq_xive : &spapr_irq_xics;
>  }
>  
> -static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
> -                                Error **errp)
> -{
> -    Error *local_err = NULL;
> -    int ret;
> -
> -    ret = spapr_irq_xics.claim(spapr, irq, lsi, &local_err);
> -    if (local_err) {
> -        error_propagate(errp, local_err);
> -        return ret;
> -    }
> -
> -    ret = spapr_irq_xive.claim(spapr, irq, lsi, &local_err);
> -    if (local_err) {
> -        error_propagate(errp, local_err);
> -        return ret;
> -    }
> -
> -    return ret;
> -}
> -
> -static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
> -{
> -    spapr_irq_xics.free(spapr, irq);
> -    spapr_irq_xive.free(spapr, irq);
> -}
> -
>  static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
>  {
>      spapr_irq_current(spapr)->print_info(spapr, mon);
> @@ -401,8 +332,6 @@ SpaprIrq spapr_irq_dual = {
>      .xics        = true,
>      .xive        = true,
>  
> -    .claim       = spapr_irq_claim_dual,
> -    .free        = spapr_irq_free_dual,
>      .print_info  = spapr_irq_print_info_dual,
>      .dt_populate = spapr_irq_dt_populate_dual,
>      .post_load   = spapr_irq_post_load_dual,
> @@ -567,10 +496,12 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
>  
>          /* Enable the CPU IPIs */
>          for (i = 0; i < nr_servers; ++i) {
> +            SpaprInterruptControllerClass *sicc
> +                = SPAPR_INTC_GET_CLASS(spapr->xive);
>              Error *local_err = NULL;
>  
> -            spapr_xive_irq_claim(spapr->xive, SPAPR_IRQ_IPI + i,
> -                                 false, &local_err);
> +            sicc->claim_irq(SPAPR_INTC(spapr->xive), SPAPR_IRQ_IPI + i,
> +                            false, &local_err);
>              if (local_err) {
>                  goto out;
>              }
> @@ -588,10 +519,30 @@ out:
>  
>  int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
>  {
> +    int rc;
> +
>      assert(irq >= SPAPR_XIRQ_BASE);
>      assert(irq < (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
>  
> -    return spapr->irq->claim(spapr, irq, lsi, errp);
> +    if (spapr->xive) {
> +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->xive);
> +
> +        rc = sicc->claim_irq(SPAPR_INTC(spapr->xive), irq, lsi, errp);
> +        if (rc < 0) {
> +            return rc;
> +        }
> +    }
> +
> +    if (spapr->ics) {
> +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->ics);
> +
> +        rc = sicc->claim_irq(SPAPR_INTC(spapr->ics), irq, lsi, errp);
> +        if (rc < 0) {
> +            return rc;
> +        }
> +    }
> +
> +    return 0;
>  }
>  
>  void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
> @@ -602,7 +553,18 @@ void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
>      assert((irq + num) <= (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
>  
>      for (i = irq; i < (irq + num); i++) {
> -        spapr->irq->free(spapr, irq);
> +        if (spapr->xive) {
> +            SpaprInterruptController *intc = SPAPR_INTC(spapr->xive);
> +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> +
> +            sicc->free_irq(intc, irq);
> +        }
> +        if (spapr->ics) {
> +            SpaprInterruptController *intc = SPAPR_INTC(spapr->ics);
> +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
> +
> +            sicc->free_irq(intc, irq);
> +        }
>      }
>  }


I think we need to introduce a object_child_foreach_type() helper first. 
It would simplify the above calls.


> @@ -727,8 +689,6 @@ SpaprIrq spapr_irq_xics_legacy = {
>      .xics        = true,
>      .xive        = false,
>  
> -    .claim       = spapr_irq_claim_xics,
> -    .free        = spapr_irq_free_xics,
>      .print_info  = spapr_irq_print_info_xics,
>      .dt_populate = spapr_dt_xics,
>      .post_load   = spapr_irq_post_load_xics,
> diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
> index 30d660ff1e..616086f9bb 100644
> --- a/include/hw/ppc/spapr_irq.h
> +++ b/include/hw/ppc/spapr_irq.h
> @@ -50,6 +50,9 @@ typedef struct SpaprInterruptControllerClass {
>       */
>      int (*cpu_intc_create)(SpaprInterruptController *intc,
>                              PowerPCCPU *cpu, Error **errp);
> +    int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi,
> +                     Error **errp);
> +    void (*free_irq)(SpaprInterruptController *intc, int irq);
>  } SpaprInterruptControllerClass;
>  
>  void spapr_irq_print_info(SpaprMachineState *spapr, Monitor *mon);
> @@ -70,8 +73,6 @@ typedef struct SpaprIrq {
>      bool        xics;
>      bool        xive;
>  
> -    int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
> -    void (*free)(SpaprMachineState *spapr, int irq);
>      void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
>      void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
>                          void *fdt, uint32_t phandle);
> diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
> index 0df20a6590..8f875673f5 100644
> --- a/include/hw/ppc/spapr_xive.h
> +++ b/include/hw/ppc/spapr_xive.h
> @@ -54,8 +54,6 @@ typedef struct SpaprXive {
>   */
>  #define SPAPR_XIVE_BLOCK_ID 0x0
>  
> -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp);
> -void spapr_xive_irq_free(SpaprXive *xive, int lisn);
>  void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon);
>  int spapr_xive_post_load(SpaprXive *xive, int version_id);
>  
>
Cédric Le Goater Sept. 30, 2019, 5:36 a.m. UTC | #4 
On 30/09/2019 04:39, David Gibson wrote:
> On Fri, Sep 27, 2019 at 02:16:12PM +0200, Greg Kurz wrote:
>> On Fri, 27 Sep 2019 15:50:17 +1000
>> David Gibson <david@gibson.dropbear.id.au> wrote:
>>
>>> These methods, like cpu_intc_create, really belong to the interrupt
>>> controller, but need to be called on all possible intcs.
>>>
>>> Like cpu_intc_create, therefore, make them methods on the intc and
>>> always call it for all existing intcs.
>>>
>>> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
>>> ---
>>>  hw/intc/spapr_xive.c        |  71 +++++++++++-----------
>>>  hw/intc/xics_spapr.c        |  29 +++++++++
>>>  hw/ppc/spapr_irq.c          | 114 ++++++++++++------------------------
>>>  include/hw/ppc/spapr_irq.h  |   5 +-
>>>  include/hw/ppc/spapr_xive.h |   2 -
>>>  5 files changed, 107 insertions(+), 114 deletions(-)
>>>
>>> diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
>>> index 9338daba3d..ff1a175b44 100644
>>> --- a/hw/intc/spapr_xive.c
>>> +++ b/hw/intc/spapr_xive.c
>>> @@ -487,6 +487,42 @@ static const VMStateDescription vmstate_spapr_xive = {
>>>      },
>>>  };
>>>  
>>> +static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn,
>>> +                                bool lsi, Error **errp)
>>> +{
>>> +    SpaprXive *xive = SPAPR_XIVE(intc);
>>> +    XiveSource *xsrc = &xive->source;
>>> +
>>> +    assert(lisn < xive->nr_irqs);
>>> +
>>> +    if (xive_eas_is_valid(&xive->eat[lisn])) {
>>> +        error_setg(errp, "IRQ %d is not free", lisn);
>>> +        return -EBUSY;
>>> +    }
>>> +
>>> +    /*
>>> +     * Set default values when allocating an IRQ number
>>> +     */
>>> +    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
>>> +    if (lsi) {
>>> +        xive_source_irq_set_lsi(xsrc, lisn);
>>> +    }
>>> +
>>> +    if (kvm_irqchip_in_kernel()) {
>>> +        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
>>> +    }
>>> +
>>> +    return 0;
>>> +}
>>> +
>>> +static void spapr_xive_free_irq(SpaprInterruptController *intc, int lisn)
>>> +{
>>> +    SpaprXive *xive = SPAPR_XIVE(intc);
>>> +    assert(lisn < xive->nr_irqs);
>>> +
>>> +    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
>>> +}
>>> +
>>>  static Property spapr_xive_properties[] = {
>>>      DEFINE_PROP_UINT32("nr-irqs", SpaprXive, nr_irqs, 0),
>>>      DEFINE_PROP_UINT32("nr-ends", SpaprXive, nr_ends, 0),
>>> @@ -536,6 +572,8 @@ static void spapr_xive_class_init(ObjectClass *klass, void *data)
>>>      xrc->get_tctx = spapr_xive_get_tctx;
>>>  
>>>      sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
>>> +    sicc->claim_irq = spapr_xive_claim_irq;
>>> +    sicc->free_irq = spapr_xive_free_irq;
>>>  }
>>>  
>>>  static const TypeInfo spapr_xive_info = {
>>> @@ -557,39 +595,6 @@ static void spapr_xive_register_types(void)
>>>  
>>>  type_init(spapr_xive_register_types)
>>>  
>>> -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp)
>>> -{
>>> -    XiveSource *xsrc = &xive->source;
>>> -
>>> -    assert(lisn < xive->nr_irqs);
>>> -
>>> -    if (xive_eas_is_valid(&xive->eat[lisn])) {
>>> -        error_setg(errp, "IRQ %d is not free", lisn);
>>> -        return -EBUSY;
>>> -    }
>>> -
>>> -    /*
>>> -     * Set default values when allocating an IRQ number
>>> -     */
>>> -    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
>>> -    if (lsi) {
>>> -        xive_source_irq_set_lsi(xsrc, lisn);
>>> -    }
>>> -
>>> -    if (kvm_irqchip_in_kernel()) {
>>> -        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
>>> -    }
>>> -
>>> -    return 0;
>>> -}
>>> -
>>> -void spapr_xive_irq_free(SpaprXive *xive, int lisn)
>>> -{
>>> -    assert(lisn < xive->nr_irqs);
>>> -
>>> -    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
>>> -}
>>> -
>>>  /*
>>>   * XIVE hcalls
>>>   *
>>> diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
>>> index 946311b858..224fe1efcd 100644
>>> --- a/hw/intc/xics_spapr.c
>>> +++ b/hw/intc/xics_spapr.c
>>> @@ -346,6 +346,33 @@ static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
>>>      return 0;
>>>  }
>>>  
>>> +static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq,
>>> +                                bool lsi, Error **errp)
>>> +{
>>> +    ICSState *ics = ICS_SPAPR(intc);
>>> +
>>> +    assert(ics);
>>> +    assert(ics_valid_irq(ics, irq));
>>> +
>>> +    if (!ics_irq_free(ics, irq - ics->offset)) {
>>> +        error_setg(errp, "IRQ %d is not free", irq);
>>> +        return -EBUSY;
>>> +    }
>>> +
>>> +    ics_set_irq_type(ics, irq - ics->offset, lsi);
>>> +    return 0;
>>> +}
>>> +
>>> +static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq)
>>> +{
>>> +    ICSState *ics = ICS_SPAPR(intc);
>>> +    uint32_t srcno = irq - ics->offset;
>>> +
>>> +    assert(ics_valid_irq(ics, irq));
>>> +
>>> +    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
>>> +}
>>> +
>>>  static void ics_spapr_class_init(ObjectClass *klass, void *data)
>>>  {
>>>      DeviceClass *dc = DEVICE_CLASS(klass);
>>> @@ -355,6 +382,8 @@ static void ics_spapr_class_init(ObjectClass *klass, void *data)
>>>      device_class_set_parent_realize(dc, ics_spapr_realize,
>>>                                      &isc->parent_realize);
>>>      sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
>>> +    sicc->claim_irq = xics_spapr_claim_irq;
>>> +    sicc->free_irq = xics_spapr_free_irq;
>>>  }
>>>  
>>>  static const TypeInfo ics_spapr_info = {
>>> diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
>>> index a855dfe4e9..ea44378d8c 100644
>>> --- a/hw/ppc/spapr_irq.c
>>> +++ b/hw/ppc/spapr_irq.c
>>> @@ -98,33 +98,6 @@ static void spapr_irq_init_kvm(SpaprMachineState *spapr,
>>>   * XICS IRQ backend.
>>>   */
>>>  
>>> -static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
>>> -                                Error **errp)
>>> -{
>>> -    ICSState *ics = spapr->ics;
>>> -
>>> -    assert(ics);
>>> -    assert(ics_valid_irq(ics, irq));
>>> -
>>> -    if (!ics_irq_free(ics, irq - ics->offset)) {
>>> -        error_setg(errp, "IRQ %d is not free", irq);
>>> -        return -1;
>>> -    }
>>> -
>>> -    ics_set_irq_type(ics, irq - ics->offset, lsi);
>>> -    return 0;
>>> -}
>>> -
>>> -static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
>>> -{
>>> -    ICSState *ics = spapr->ics;
>>> -    uint32_t srcno = irq - ics->offset;
>>> -
>>> -    assert(ics_valid_irq(ics, irq));
>>> -
>>> -    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
>>> -}
>>> -
>>>  static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
>>>  {
>>>      CPUState *cs;
>>> @@ -182,8 +155,6 @@ SpaprIrq spapr_irq_xics = {
>>>      .xics        = true,
>>>      .xive        = false,
>>>  
>>> -    .claim       = spapr_irq_claim_xics,
>>> -    .free        = spapr_irq_free_xics,
>>>      .print_info  = spapr_irq_print_info_xics,
>>>      .dt_populate = spapr_dt_xics,
>>>      .post_load   = spapr_irq_post_load_xics,
>>> @@ -196,17 +167,6 @@ SpaprIrq spapr_irq_xics = {
>>>   * XIVE IRQ backend.
>>>   */
>>>  
>>> -static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
>>> -                                Error **errp)
>>> -{
>>> -    return spapr_xive_irq_claim(spapr->xive, irq, lsi, errp);
>>> -}
>>> -
>>> -static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
>>> -{
>>> -    spapr_xive_irq_free(spapr->xive, irq);
>>> -}
>>> -
>>>  static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
>>>                                        Monitor *mon)
>>>  {
>>> @@ -272,8 +232,6 @@ SpaprIrq spapr_irq_xive = {
>>>      .xics        = false,
>>>      .xive        = true,
>>>  
>>> -    .claim       = spapr_irq_claim_xive,
>>> -    .free        = spapr_irq_free_xive,
>>>      .print_info  = spapr_irq_print_info_xive,
>>>      .dt_populate = spapr_dt_xive,
>>>      .post_load   = spapr_irq_post_load_xive,
>>> @@ -301,33 +259,6 @@ static SpaprIrq *spapr_irq_current(SpaprMachineState *spapr)
>>>          &spapr_irq_xive : &spapr_irq_xics;
>>>  }
>>>  
>>> -static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
>>> -                                Error **errp)
>>> -{
>>> -    Error *local_err = NULL;
>>> -    int ret;
>>> -
>>> -    ret = spapr_irq_xics.claim(spapr, irq, lsi, &local_err);
>>> -    if (local_err) {
>>> -        error_propagate(errp, local_err);
>>> -        return ret;
>>> -    }
>>> -
>>> -    ret = spapr_irq_xive.claim(spapr, irq, lsi, &local_err);
>>> -    if (local_err) {
>>> -        error_propagate(errp, local_err);
>>> -        return ret;
>>> -    }
>>> -
>>> -    return ret;
>>> -}
>>> -
>>> -static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
>>> -{
>>> -    spapr_irq_xics.free(spapr, irq);
>>> -    spapr_irq_xive.free(spapr, irq);
>>> -}
>>> -
>>>  static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
>>>  {
>>>      spapr_irq_current(spapr)->print_info(spapr, mon);
>>> @@ -401,8 +332,6 @@ SpaprIrq spapr_irq_dual = {
>>>      .xics        = true,
>>>      .xive        = true,
>>>  
>>> -    .claim       = spapr_irq_claim_dual,
>>> -    .free        = spapr_irq_free_dual,
>>>      .print_info  = spapr_irq_print_info_dual,
>>>      .dt_populate = spapr_irq_dt_populate_dual,
>>>      .post_load   = spapr_irq_post_load_dual,
>>> @@ -567,10 +496,12 @@ void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
>>>  
>>>          /* Enable the CPU IPIs */
>>>          for (i = 0; i < nr_servers; ++i) {
>>> +            SpaprInterruptControllerClass *sicc
>>> +                = SPAPR_INTC_GET_CLASS(spapr->xive);
>>>              Error *local_err = NULL;
>>>  
>>> -            spapr_xive_irq_claim(spapr->xive, SPAPR_IRQ_IPI + i,
>>> -                                 false, &local_err);
>>> +            sicc->claim_irq(SPAPR_INTC(spapr->xive), SPAPR_IRQ_IPI + i,
>>> +                            false, &local_err);
>>>              if (local_err) {
>>>                  goto out;
>>>              }
>>> @@ -588,10 +519,30 @@ out:
>>>  
>>>  int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
>>>  {
>>> +    int rc;
>>> +
>>>      assert(irq >= SPAPR_XIRQ_BASE);
>>>      assert(irq < (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
>>>  
>>> -    return spapr->irq->claim(spapr, irq, lsi, errp);
>>> +    if (spapr->xive) {
>>> +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->xive);
>>> +
>>> +        rc = sicc->claim_irq(SPAPR_INTC(spapr->xive), irq, lsi, errp);
>>> +        if (rc < 0) {
>>> +            return rc;
>>> +        }
>>> +    }
>>> +
>>> +    if (spapr->ics) {
>>> +        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->ics);
>>> +
>>> +        rc = sicc->claim_irq(SPAPR_INTC(spapr->ics), irq, lsi, errp);
>>> +        if (rc < 0) {
>>> +            return rc;
>>> +        }
>>> +    }
>>> +
>>
>> We don't really need an indirection here since we explicitly check
>> spapr->xive and spapr->ics. Calling directly spapr_xive_claim_irq() and
>> xics_spapr_claim_irq() would allow to avoid the method boiler plate and
>> be more explicit IMHO.
>>
>>> +    return 0;
>>>  }
>>>  
>>>  void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
>>> @@ -602,7 +553,18 @@ void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
>>>      assert((irq + num) <= (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
>>>  
>>>      for (i = irq; i < (irq + num); i++) {
>>> -        spapr->irq->free(spapr, irq);
>>> +        if (spapr->xive) {
>>> +            SpaprInterruptController *intc = SPAPR_INTC(spapr->xive);
>>> +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
>>> +
>>> +            sicc->free_irq(intc, irq);
>>> +        }
>>> +        if (spapr->ics) {
>>> +            SpaprInterruptController *intc = SPAPR_INTC(spapr->ics);
>>> +            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
>>> +
>>> +            sicc->free_irq(intc, irq);
>>> +        }
>>
>> Same here.
> 
> As with cpu_intc_create(), I'd prefer to keep both of these as is, but
> I'll look at replacing spapr->ics and spapr->xive with something like
> spapr->all_intcs[].

I would keep the pointers, because we probably need them in some place, 
and use an object_child_foreach instead. 

> 
>>
>>>      }
>>>  }
>>>  
>>> @@ -727,8 +689,6 @@ SpaprIrq spapr_irq_xics_legacy = {
>>>      .xics        = true,
>>>      .xive        = false,
>>>  
>>> -    .claim       = spapr_irq_claim_xics,
>>> -    .free        = spapr_irq_free_xics,
>>>      .print_info  = spapr_irq_print_info_xics,
>>>      .dt_populate = spapr_dt_xics,
>>>      .post_load   = spapr_irq_post_load_xics,
>>> diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
>>> index 30d660ff1e..616086f9bb 100644
>>> --- a/include/hw/ppc/spapr_irq.h
>>> +++ b/include/hw/ppc/spapr_irq.h
>>> @@ -50,6 +50,9 @@ typedef struct SpaprInterruptControllerClass {
>>>       */
>>>      int (*cpu_intc_create)(SpaprInterruptController *intc,
>>>                              PowerPCCPU *cpu, Error **errp);
>>> +    int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi,
>>> +                     Error **errp);
>>> +    void (*free_irq)(SpaprInterruptController *intc, int irq);
>>>  } SpaprInterruptControllerClass;
>>>  
>>>  void spapr_irq_print_info(SpaprMachineState *spapr, Monitor *mon);
>>> @@ -70,8 +73,6 @@ typedef struct SpaprIrq {
>>>      bool        xics;
>>>      bool        xive;
>>>  
>>> -    int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
>>> -    void (*free)(SpaprMachineState *spapr, int irq);
>>>      void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
>>>      void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
>>>                          void *fdt, uint32_t phandle);
>>> diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
>>> index 0df20a6590..8f875673f5 100644
>>> --- a/include/hw/ppc/spapr_xive.h
>>> +++ b/include/hw/ppc/spapr_xive.h
>>> @@ -54,8 +54,6 @@ typedef struct SpaprXive {
>>>   */
>>>  #define SPAPR_XIVE_BLOCK_ID 0x0
>>>  
>>> -int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp);
>>> -void spapr_xive_irq_free(SpaprXive *xive, int lisn);
>>>  void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon);
>>>  int spapr_xive_post_load(SpaprXive *xive, int version_id);
>>>  
>>
>
diff mbox series

Patch

diff --git a/hw/intc/spapr_xive.c b/hw/intc/spapr_xive.c
index 9338daba3d..ff1a175b44 100644
--- a/hw/intc/spapr_xive.c
+++ b/hw/intc/spapr_xive.c
@@ -487,6 +487,42 @@  static const VMStateDescription vmstate_spapr_xive = {
     },
 };
 
+static int spapr_xive_claim_irq(SpaprInterruptController *intc, int lisn,
+                                bool lsi, Error **errp)
+{
+    SpaprXive *xive = SPAPR_XIVE(intc);
+    XiveSource *xsrc = &xive->source;
+
+    assert(lisn < xive->nr_irqs);
+
+    if (xive_eas_is_valid(&xive->eat[lisn])) {
+        error_setg(errp, "IRQ %d is not free", lisn);
+        return -EBUSY;
+    }
+
+    /*
+     * Set default values when allocating an IRQ number
+     */
+    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
+    if (lsi) {
+        xive_source_irq_set_lsi(xsrc, lisn);
+    }
+
+    if (kvm_irqchip_in_kernel()) {
+        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
+    }
+
+    return 0;
+}
+
+static void spapr_xive_free_irq(SpaprInterruptController *intc, int lisn)
+{
+    SpaprXive *xive = SPAPR_XIVE(intc);
+    assert(lisn < xive->nr_irqs);
+
+    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
+}
+
 static Property spapr_xive_properties[] = {
     DEFINE_PROP_UINT32("nr-irqs", SpaprXive, nr_irqs, 0),
     DEFINE_PROP_UINT32("nr-ends", SpaprXive, nr_ends, 0),
@@ -536,6 +572,8 @@  static void spapr_xive_class_init(ObjectClass *klass, void *data)
     xrc->get_tctx = spapr_xive_get_tctx;
 
     sicc->cpu_intc_create = spapr_xive_cpu_intc_create;
+    sicc->claim_irq = spapr_xive_claim_irq;
+    sicc->free_irq = spapr_xive_free_irq;
 }
 
 static const TypeInfo spapr_xive_info = {
@@ -557,39 +595,6 @@  static void spapr_xive_register_types(void)
 
 type_init(spapr_xive_register_types)
 
-int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp)
-{
-    XiveSource *xsrc = &xive->source;
-
-    assert(lisn < xive->nr_irqs);
-
-    if (xive_eas_is_valid(&xive->eat[lisn])) {
-        error_setg(errp, "IRQ %d is not free", lisn);
-        return -EBUSY;
-    }
-
-    /*
-     * Set default values when allocating an IRQ number
-     */
-    xive->eat[lisn].w |= cpu_to_be64(EAS_VALID | EAS_MASKED);
-    if (lsi) {
-        xive_source_irq_set_lsi(xsrc, lisn);
-    }
-
-    if (kvm_irqchip_in_kernel()) {
-        return kvmppc_xive_source_reset_one(xsrc, lisn, errp);
-    }
-
-    return 0;
-}
-
-void spapr_xive_irq_free(SpaprXive *xive, int lisn)
-{
-    assert(lisn < xive->nr_irqs);
-
-    xive->eat[lisn].w &= cpu_to_be64(~EAS_VALID);
-}
-
 /*
  * XIVE hcalls
  *
diff --git a/hw/intc/xics_spapr.c b/hw/intc/xics_spapr.c
index 946311b858..224fe1efcd 100644
--- a/hw/intc/xics_spapr.c
+++ b/hw/intc/xics_spapr.c
@@ -346,6 +346,33 @@  static int xics_spapr_cpu_intc_create(SpaprInterruptController *intc,
     return 0;
 }
 
+static int xics_spapr_claim_irq(SpaprInterruptController *intc, int irq,
+                                bool lsi, Error **errp)
+{
+    ICSState *ics = ICS_SPAPR(intc);
+
+    assert(ics);
+    assert(ics_valid_irq(ics, irq));
+
+    if (!ics_irq_free(ics, irq - ics->offset)) {
+        error_setg(errp, "IRQ %d is not free", irq);
+        return -EBUSY;
+    }
+
+    ics_set_irq_type(ics, irq - ics->offset, lsi);
+    return 0;
+}
+
+static void xics_spapr_free_irq(SpaprInterruptController *intc, int irq)
+{
+    ICSState *ics = ICS_SPAPR(intc);
+    uint32_t srcno = irq - ics->offset;
+
+    assert(ics_valid_irq(ics, irq));
+
+    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
+}
+
 static void ics_spapr_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
@@ -355,6 +382,8 @@  static void ics_spapr_class_init(ObjectClass *klass, void *data)
     device_class_set_parent_realize(dc, ics_spapr_realize,
                                     &isc->parent_realize);
     sicc->cpu_intc_create = xics_spapr_cpu_intc_create;
+    sicc->claim_irq = xics_spapr_claim_irq;
+    sicc->free_irq = xics_spapr_free_irq;
 }
 
 static const TypeInfo ics_spapr_info = {
diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index a855dfe4e9..ea44378d8c 100644
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -98,33 +98,6 @@  static void spapr_irq_init_kvm(SpaprMachineState *spapr,
  * XICS IRQ backend.
  */
 
-static int spapr_irq_claim_xics(SpaprMachineState *spapr, int irq, bool lsi,
-                                Error **errp)
-{
-    ICSState *ics = spapr->ics;
-
-    assert(ics);
-    assert(ics_valid_irq(ics, irq));
-
-    if (!ics_irq_free(ics, irq - ics->offset)) {
-        error_setg(errp, "IRQ %d is not free", irq);
-        return -1;
-    }
-
-    ics_set_irq_type(ics, irq - ics->offset, lsi);
-    return 0;
-}
-
-static void spapr_irq_free_xics(SpaprMachineState *spapr, int irq)
-{
-    ICSState *ics = spapr->ics;
-    uint32_t srcno = irq - ics->offset;
-
-    assert(ics_valid_irq(ics, irq));
-
-    memset(&ics->irqs[srcno], 0, sizeof(ICSIRQState));
-}
-
 static void spapr_irq_print_info_xics(SpaprMachineState *spapr, Monitor *mon)
 {
     CPUState *cs;
@@ -182,8 +155,6 @@  SpaprIrq spapr_irq_xics = {
     .xics        = true,
     .xive        = false,
 
-    .claim       = spapr_irq_claim_xics,
-    .free        = spapr_irq_free_xics,
     .print_info  = spapr_irq_print_info_xics,
     .dt_populate = spapr_dt_xics,
     .post_load   = spapr_irq_post_load_xics,
@@ -196,17 +167,6 @@  SpaprIrq spapr_irq_xics = {
  * XIVE IRQ backend.
  */
 
-static int spapr_irq_claim_xive(SpaprMachineState *spapr, int irq, bool lsi,
-                                Error **errp)
-{
-    return spapr_xive_irq_claim(spapr->xive, irq, lsi, errp);
-}
-
-static void spapr_irq_free_xive(SpaprMachineState *spapr, int irq)
-{
-    spapr_xive_irq_free(spapr->xive, irq);
-}
-
 static void spapr_irq_print_info_xive(SpaprMachineState *spapr,
                                       Monitor *mon)
 {
@@ -272,8 +232,6 @@  SpaprIrq spapr_irq_xive = {
     .xics        = false,
     .xive        = true,
 
-    .claim       = spapr_irq_claim_xive,
-    .free        = spapr_irq_free_xive,
     .print_info  = spapr_irq_print_info_xive,
     .dt_populate = spapr_dt_xive,
     .post_load   = spapr_irq_post_load_xive,
@@ -301,33 +259,6 @@  static SpaprIrq *spapr_irq_current(SpaprMachineState *spapr)
         &spapr_irq_xive : &spapr_irq_xics;
 }
 
-static int spapr_irq_claim_dual(SpaprMachineState *spapr, int irq, bool lsi,
-                                Error **errp)
-{
-    Error *local_err = NULL;
-    int ret;
-
-    ret = spapr_irq_xics.claim(spapr, irq, lsi, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return ret;
-    }
-
-    ret = spapr_irq_xive.claim(spapr, irq, lsi, &local_err);
-    if (local_err) {
-        error_propagate(errp, local_err);
-        return ret;
-    }
-
-    return ret;
-}
-
-static void spapr_irq_free_dual(SpaprMachineState *spapr, int irq)
-{
-    spapr_irq_xics.free(spapr, irq);
-    spapr_irq_xive.free(spapr, irq);
-}
-
 static void spapr_irq_print_info_dual(SpaprMachineState *spapr, Monitor *mon)
 {
     spapr_irq_current(spapr)->print_info(spapr, mon);
@@ -401,8 +332,6 @@  SpaprIrq spapr_irq_dual = {
     .xics        = true,
     .xive        = true,
 
-    .claim       = spapr_irq_claim_dual,
-    .free        = spapr_irq_free_dual,
     .print_info  = spapr_irq_print_info_dual,
     .dt_populate = spapr_irq_dt_populate_dual,
     .post_load   = spapr_irq_post_load_dual,
@@ -567,10 +496,12 @@  void spapr_irq_init(SpaprMachineState *spapr, Error **errp)
 
         /* Enable the CPU IPIs */
         for (i = 0; i < nr_servers; ++i) {
+            SpaprInterruptControllerClass *sicc
+                = SPAPR_INTC_GET_CLASS(spapr->xive);
             Error *local_err = NULL;
 
-            spapr_xive_irq_claim(spapr->xive, SPAPR_IRQ_IPI + i,
-                                 false, &local_err);
+            sicc->claim_irq(SPAPR_INTC(spapr->xive), SPAPR_IRQ_IPI + i,
+                            false, &local_err);
             if (local_err) {
                 goto out;
             }
@@ -588,10 +519,30 @@  out:
 
 int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp)
 {
+    int rc;
+
     assert(irq >= SPAPR_XIRQ_BASE);
     assert(irq < (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
 
-    return spapr->irq->claim(spapr, irq, lsi, errp);
+    if (spapr->xive) {
+        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->xive);
+
+        rc = sicc->claim_irq(SPAPR_INTC(spapr->xive), irq, lsi, errp);
+        if (rc < 0) {
+            return rc;
+        }
+    }
+
+    if (spapr->ics) {
+        SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(spapr->ics);
+
+        rc = sicc->claim_irq(SPAPR_INTC(spapr->ics), irq, lsi, errp);
+        if (rc < 0) {
+            return rc;
+        }
+    }
+
+    return 0;
 }
 
 void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
@@ -602,7 +553,18 @@  void spapr_irq_free(SpaprMachineState *spapr, int irq, int num)
     assert((irq + num) <= (spapr->irq->nr_xirqs + SPAPR_XIRQ_BASE));
 
     for (i = irq; i < (irq + num); i++) {
-        spapr->irq->free(spapr, irq);
+        if (spapr->xive) {
+            SpaprInterruptController *intc = SPAPR_INTC(spapr->xive);
+            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
+
+            sicc->free_irq(intc, irq);
+        }
+        if (spapr->ics) {
+            SpaprInterruptController *intc = SPAPR_INTC(spapr->ics);
+            SpaprInterruptControllerClass *sicc = SPAPR_INTC_GET_CLASS(intc);
+
+            sicc->free_irq(intc, irq);
+        }
     }
 }
 
@@ -727,8 +689,6 @@  SpaprIrq spapr_irq_xics_legacy = {
     .xics        = true,
     .xive        = false,
 
-    .claim       = spapr_irq_claim_xics,
-    .free        = spapr_irq_free_xics,
     .print_info  = spapr_irq_print_info_xics,
     .dt_populate = spapr_dt_xics,
     .post_load   = spapr_irq_post_load_xics,
diff --git a/include/hw/ppc/spapr_irq.h b/include/hw/ppc/spapr_irq.h
index 30d660ff1e..616086f9bb 100644
--- a/include/hw/ppc/spapr_irq.h
+++ b/include/hw/ppc/spapr_irq.h
@@ -50,6 +50,9 @@  typedef struct SpaprInterruptControllerClass {
      */
     int (*cpu_intc_create)(SpaprInterruptController *intc,
                             PowerPCCPU *cpu, Error **errp);
+    int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi,
+                     Error **errp);
+    void (*free_irq)(SpaprInterruptController *intc, int irq);
 } SpaprInterruptControllerClass;
 
 void spapr_irq_print_info(SpaprMachineState *spapr, Monitor *mon);
@@ -70,8 +73,6 @@  typedef struct SpaprIrq {
     bool        xics;
     bool        xive;
 
-    int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
-    void (*free)(SpaprMachineState *spapr, int irq);
     void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
     void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
                         void *fdt, uint32_t phandle);
diff --git a/include/hw/ppc/spapr_xive.h b/include/hw/ppc/spapr_xive.h
index 0df20a6590..8f875673f5 100644
--- a/include/hw/ppc/spapr_xive.h
+++ b/include/hw/ppc/spapr_xive.h
@@ -54,8 +54,6 @@  typedef struct SpaprXive {
  */
 #define SPAPR_XIVE_BLOCK_ID 0x0
 
-int spapr_xive_irq_claim(SpaprXive *xive, int lisn, bool lsi, Error **errp);
-void spapr_xive_irq_free(SpaprXive *xive, int lisn);
 void spapr_xive_pic_print_info(SpaprXive *xive, Monitor *mon);
 int spapr_xive_post_load(SpaprXive *xive, int version_id);