diff mbox

[v2,06/24] spapr: add node-id property to sPAPR core

Message ID 1493816238-33120-7-git-send-email-imammedo@redhat.com
State New
Headers show

Commit Message

Igor Mammedov May 3, 2017, 12:57 p.m. UTC
it will allow switching from cpu_index to core based numa
mapping in follow up patches.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
---
 include/hw/ppc/spapr_cpu_core.h |  1 +
 include/qom/cpu.h               |  2 ++
 hw/ppc/spapr.c                  | 17 +++++++++++++++++
 hw/ppc/spapr_cpu_core.c         | 11 ++++++++---
 4 files changed, 28 insertions(+), 3 deletions(-)

Comments

Eduardo Habkost May 3, 2017, 2:46 p.m. UTC | #1
On Wed, May 03, 2017 at 02:57:00PM +0200, Igor Mammedov wrote:
> it will allow switching from cpu_index to core based numa
> mapping in follow up patches.
> 
> Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>

Have you considered adding this to TYPE_CPU instead of
duplicating the same code on multiple architectures/boards?

> ---
>  include/hw/ppc/spapr_cpu_core.h |  1 +
>  include/qom/cpu.h               |  2 ++
>  hw/ppc/spapr.c                  | 17 +++++++++++++++++
>  hw/ppc/spapr_cpu_core.c         | 11 ++++++++---
>  4 files changed, 28 insertions(+), 3 deletions(-)
> 
> diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
> index 3c35665..93051e9 100644
> --- a/include/hw/ppc/spapr_cpu_core.h
> +++ b/include/hw/ppc/spapr_cpu_core.h
> @@ -27,6 +27,7 @@ typedef struct sPAPRCPUCore {
>  
>      /*< public >*/
>      void *threads;
> +    int node_id;
>  } sPAPRCPUCore;
>  
>  typedef struct sPAPRCPUCoreClass {
> diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> index 5d10359..55214ce 100644
> --- a/include/qom/cpu.h
> +++ b/include/qom/cpu.h
> @@ -258,6 +258,8 @@ typedef void (*run_on_cpu_func)(CPUState *cpu, run_on_cpu_data data);
>  
>  struct qemu_work_item;
>  
> +#define CPU_UNSET_NUMA_NODE_ID -1
> +
>  /**
>   * CPUState:
>   * @cpu_index: CPU index (informative).
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index 33405a0..7f58ee4 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -2824,9 +2824,11 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
>      MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev);
>      Error *local_err = NULL;
>      CPUCore *cc = CPU_CORE(dev);
> +    sPAPRCPUCore *sc = SPAPR_CPU_CORE(dev);
>      char *base_core_type = spapr_get_cpu_core_type(machine->cpu_model);
>      const char *type = object_get_typename(OBJECT(dev));
>      CPUArchId *core_slot;
> +    int node_id;
>      int index;
>  
>      if (dev->hotplugged && !mc->has_hotpluggable_cpus) {
> @@ -2861,6 +2863,21 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
>          goto out;
>      }
>  
> +    node_id = numa_get_node_for_cpu(cc->core_id);
> +    if (node_id == nb_numa_nodes) {
> +        /* by default CPUState::numa_node was 0 if it's not set via CLI
> +         * keep it this way for now but in future we probably should
> +         * refuse to start up with incomplete numa mapping */
> +        node_id = 0;
> +    }
> +    if (sc->node_id == CPU_UNSET_NUMA_NODE_ID) {
> +        sc->node_id = node_id;
> +    } else if (sc->node_id != node_id) {
> +        error_setg(&local_err, "node-id %d must match numa node specified"
> +            "with -numa option for cpu-index %d", sc->node_id, cc->core_id);
> +        goto out;
> +    }
> +
>  out:
>      g_free(base_core_type);
>      error_propagate(errp, local_err);
> diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> index 4389ef4..9de7a56 100644
> --- a/hw/ppc/spapr_cpu_core.c
> +++ b/hw/ppc/spapr_cpu_core.c
> @@ -176,7 +176,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
>      const char *typename = object_class_get_name(scc->cpu_class);
>      size_t size = object_type_get_instance_size(typename);
>      Error *local_err = NULL;
> -    int core_node_id = numa_get_node_for_cpu(cc->core_id);;
>      void *obj;
>      int i, j;
>  
> @@ -194,10 +193,10 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
>  
>          /* Set NUMA node for the added CPUs  */
>          node_id = numa_get_node_for_cpu(cs->cpu_index);
> -        if (node_id != core_node_id) {
> +        if (node_id != sc->node_id) {
>              error_setg(&local_err, "Invalid node-id=%d of thread[cpu-index: %d]"
>                  " on CPU[core-id: %d, node-id: %d], node-id must be the same",
> -                 node_id, cs->cpu_index, cc->core_id, core_node_id);
> +                 node_id, cs->cpu_index, cc->core_id, sc->node_id);
>              goto err;
>          }
>          if (node_id < nb_numa_nodes) {
> @@ -263,6 +262,11 @@ static const char *spapr_core_models[] = {
>      "POWER9_v1.0",
>  };
>  
> +static Property spapr_cpu_core_properties[] = {
> +    DEFINE_PROP_INT32("node-id", sPAPRCPUCore, node_id, CPU_UNSET_NUMA_NODE_ID),
> +    DEFINE_PROP_END_OF_LIST()
> +};
> +
>  void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
>  {
>      DeviceClass *dc = DEVICE_CLASS(oc);
> @@ -270,6 +274,7 @@ void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
>  
>      dc->realize = spapr_cpu_core_realize;
>      dc->unrealize = spapr_cpu_core_unrealizefn;
> +    dc->props = spapr_cpu_core_properties;
>      scc->cpu_class = cpu_class_by_name(TYPE_POWERPC_CPU, data);
>      g_assert(scc->cpu_class);
>  }
> -- 
> 2.7.4
>
Igor Mammedov May 3, 2017, 4:12 p.m. UTC | #2
On Wed, 3 May 2017 11:46:44 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:

> On Wed, May 03, 2017 at 02:57:00PM +0200, Igor Mammedov wrote:
> > it will allow switching from cpu_index to core based numa
> > mapping in follow up patches.
> > 
> > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > Reviewed-by: David Gibson <david@gibson.dropbear.id.au>  
> 
> Have you considered adding this to TYPE_CPU instead of
> duplicating the same code on multiple architectures/boards?
it was in TYPE_CPU at RFC time, but it adds public node-id
property to every CPU.
So I've rewrote it they way it would affect only necessary CPUs,

it might be possible to generalize node_id sanity checks at
pre_plug time into a common wrapper, I can do it on top so
it would be visible what it's generalized (or an extra patch on respin)

> 
> > ---
> >  include/hw/ppc/spapr_cpu_core.h |  1 +
> >  include/qom/cpu.h               |  2 ++
> >  hw/ppc/spapr.c                  | 17 +++++++++++++++++
> >  hw/ppc/spapr_cpu_core.c         | 11 ++++++++---
> >  4 files changed, 28 insertions(+), 3 deletions(-)
> > 
> > diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
> > index 3c35665..93051e9 100644
> > --- a/include/hw/ppc/spapr_cpu_core.h
> > +++ b/include/hw/ppc/spapr_cpu_core.h
> > @@ -27,6 +27,7 @@ typedef struct sPAPRCPUCore {
> >  
> >      /*< public >*/
> >      void *threads;
> > +    int node_id;
> >  } sPAPRCPUCore;
> >  
> >  typedef struct sPAPRCPUCoreClass {
> > diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> > index 5d10359..55214ce 100644
> > --- a/include/qom/cpu.h
> > +++ b/include/qom/cpu.h
> > @@ -258,6 +258,8 @@ typedef void (*run_on_cpu_func)(CPUState *cpu, run_on_cpu_data data);
> >  
> >  struct qemu_work_item;
> >  
> > +#define CPU_UNSET_NUMA_NODE_ID -1
> > +
> >  /**
> >   * CPUState:
> >   * @cpu_index: CPU index (informative).
> > diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> > index 33405a0..7f58ee4 100644
> > --- a/hw/ppc/spapr.c
> > +++ b/hw/ppc/spapr.c
> > @@ -2824,9 +2824,11 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> >      MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev);
> >      Error *local_err = NULL;
> >      CPUCore *cc = CPU_CORE(dev);
> > +    sPAPRCPUCore *sc = SPAPR_CPU_CORE(dev);
> >      char *base_core_type = spapr_get_cpu_core_type(machine->cpu_model);
> >      const char *type = object_get_typename(OBJECT(dev));
> >      CPUArchId *core_slot;
> > +    int node_id;
> >      int index;
> >  
> >      if (dev->hotplugged && !mc->has_hotpluggable_cpus) {
> > @@ -2861,6 +2863,21 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> >          goto out;
> >      }
> >  
> > +    node_id = numa_get_node_for_cpu(cc->core_id);
> > +    if (node_id == nb_numa_nodes) {
> > +        /* by default CPUState::numa_node was 0 if it's not set via CLI
> > +         * keep it this way for now but in future we probably should
> > +         * refuse to start up with incomplete numa mapping */
> > +        node_id = 0;
> > +    }
> > +    if (sc->node_id == CPU_UNSET_NUMA_NODE_ID) {
> > +        sc->node_id = node_id;
> > +    } else if (sc->node_id != node_id) {
> > +        error_setg(&local_err, "node-id %d must match numa node specified"
> > +            "with -numa option for cpu-index %d", sc->node_id, cc->core_id);
> > +        goto out;
> > +    }
> > +
> >  out:
> >      g_free(base_core_type);
> >      error_propagate(errp, local_err);
> > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> > index 4389ef4..9de7a56 100644
> > --- a/hw/ppc/spapr_cpu_core.c
> > +++ b/hw/ppc/spapr_cpu_core.c
> > @@ -176,7 +176,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
> >      const char *typename = object_class_get_name(scc->cpu_class);
> >      size_t size = object_type_get_instance_size(typename);
> >      Error *local_err = NULL;
> > -    int core_node_id = numa_get_node_for_cpu(cc->core_id);;
> >      void *obj;
> >      int i, j;
> >  
> > @@ -194,10 +193,10 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
> >  
> >          /* Set NUMA node for the added CPUs  */
> >          node_id = numa_get_node_for_cpu(cs->cpu_index);
> > -        if (node_id != core_node_id) {
> > +        if (node_id != sc->node_id) {
> >              error_setg(&local_err, "Invalid node-id=%d of thread[cpu-index: %d]"
> >                  " on CPU[core-id: %d, node-id: %d], node-id must be the same",
> > -                 node_id, cs->cpu_index, cc->core_id, core_node_id);
> > +                 node_id, cs->cpu_index, cc->core_id, sc->node_id);
> >              goto err;
> >          }
> >          if (node_id < nb_numa_nodes) {
> > @@ -263,6 +262,11 @@ static const char *spapr_core_models[] = {
> >      "POWER9_v1.0",
> >  };
> >  
> > +static Property spapr_cpu_core_properties[] = {
> > +    DEFINE_PROP_INT32("node-id", sPAPRCPUCore, node_id, CPU_UNSET_NUMA_NODE_ID),
> > +    DEFINE_PROP_END_OF_LIST()
> > +};
> > +
> >  void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> >  {
> >      DeviceClass *dc = DEVICE_CLASS(oc);
> > @@ -270,6 +274,7 @@ void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> >  
> >      dc->realize = spapr_cpu_core_realize;
> >      dc->unrealize = spapr_cpu_core_unrealizefn;
> > +    dc->props = spapr_cpu_core_properties;
> >      scc->cpu_class = cpu_class_by_name(TYPE_POWERPC_CPU, data);
> >      g_assert(scc->cpu_class);
> >  }
> > -- 
> > 2.7.4
> >   
>
David Gibson May 4, 2017, 4:49 p.m. UTC | #3
On Wed, May 03, 2017 at 06:12:17PM +0200, Igor Mammedov wrote:
> On Wed, 3 May 2017 11:46:44 -0300
> Eduardo Habkost <ehabkost@redhat.com> wrote:
> 
> > On Wed, May 03, 2017 at 02:57:00PM +0200, Igor Mammedov wrote:
> > > it will allow switching from cpu_index to core based numa
> > > mapping in follow up patches.
> > > 
> > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > > Reviewed-by: David Gibson <david@gibson.dropbear.id.au>  
> > 
> > Have you considered adding this to TYPE_CPU instead of
> > duplicating the same code on multiple architectures/boards?
> it was in TYPE_CPU at RFC time, but it adds public node-id
> property to every CPU.
> So I've rewrote it they way it would affect only necessary CPUs,
> 
> it might be possible to generalize node_id sanity checks at
> pre_plug time into a common wrapper, I can do it on top so
> it would be visible what it's generalized (or an extra patch on
> respin)

Note that the spapr cpu core type here is *not* a descendent of
TYPE_CPU (the threads under it are).

> 
> > 
> > > ---
> > >  include/hw/ppc/spapr_cpu_core.h |  1 +
> > >  include/qom/cpu.h               |  2 ++
> > >  hw/ppc/spapr.c                  | 17 +++++++++++++++++
> > >  hw/ppc/spapr_cpu_core.c         | 11 ++++++++---
> > >  4 files changed, 28 insertions(+), 3 deletions(-)
> > > 
> > > diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
> > > index 3c35665..93051e9 100644
> > > --- a/include/hw/ppc/spapr_cpu_core.h
> > > +++ b/include/hw/ppc/spapr_cpu_core.h
> > > @@ -27,6 +27,7 @@ typedef struct sPAPRCPUCore {
> > >  
> > >      /*< public >*/
> > >      void *threads;
> > > +    int node_id;
> > >  } sPAPRCPUCore;
> > >  
> > >  typedef struct sPAPRCPUCoreClass {
> > > diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> > > index 5d10359..55214ce 100644
> > > --- a/include/qom/cpu.h
> > > +++ b/include/qom/cpu.h
> > > @@ -258,6 +258,8 @@ typedef void (*run_on_cpu_func)(CPUState *cpu, run_on_cpu_data data);
> > >  
> > >  struct qemu_work_item;
> > >  
> > > +#define CPU_UNSET_NUMA_NODE_ID -1
> > > +
> > >  /**
> > >   * CPUState:
> > >   * @cpu_index: CPU index (informative).
> > > diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> > > index 33405a0..7f58ee4 100644
> > > --- a/hw/ppc/spapr.c
> > > +++ b/hw/ppc/spapr.c
> > > @@ -2824,9 +2824,11 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> > >      MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev);
> > >      Error *local_err = NULL;
> > >      CPUCore *cc = CPU_CORE(dev);
> > > +    sPAPRCPUCore *sc = SPAPR_CPU_CORE(dev);
> > >      char *base_core_type = spapr_get_cpu_core_type(machine->cpu_model);
> > >      const char *type = object_get_typename(OBJECT(dev));
> > >      CPUArchId *core_slot;
> > > +    int node_id;
> > >      int index;
> > >  
> > >      if (dev->hotplugged && !mc->has_hotpluggable_cpus) {
> > > @@ -2861,6 +2863,21 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> > >          goto out;
> > >      }
> > >  
> > > +    node_id = numa_get_node_for_cpu(cc->core_id);
> > > +    if (node_id == nb_numa_nodes) {
> > > +        /* by default CPUState::numa_node was 0 if it's not set via CLI
> > > +         * keep it this way for now but in future we probably should
> > > +         * refuse to start up with incomplete numa mapping */
> > > +        node_id = 0;
> > > +    }
> > > +    if (sc->node_id == CPU_UNSET_NUMA_NODE_ID) {
> > > +        sc->node_id = node_id;
> > > +    } else if (sc->node_id != node_id) {
> > > +        error_setg(&local_err, "node-id %d must match numa node specified"
> > > +            "with -numa option for cpu-index %d", sc->node_id, cc->core_id);
> > > +        goto out;
> > > +    }
> > > +
> > >  out:
> > >      g_free(base_core_type);
> > >      error_propagate(errp, local_err);
> > > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> > > index 4389ef4..9de7a56 100644
> > > --- a/hw/ppc/spapr_cpu_core.c
> > > +++ b/hw/ppc/spapr_cpu_core.c
> > > @@ -176,7 +176,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
> > >      const char *typename = object_class_get_name(scc->cpu_class);
> > >      size_t size = object_type_get_instance_size(typename);
> > >      Error *local_err = NULL;
> > > -    int core_node_id = numa_get_node_for_cpu(cc->core_id);;
> > >      void *obj;
> > >      int i, j;
> > >  
> > > @@ -194,10 +193,10 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
> > >  
> > >          /* Set NUMA node for the added CPUs  */
> > >          node_id = numa_get_node_for_cpu(cs->cpu_index);
> > > -        if (node_id != core_node_id) {
> > > +        if (node_id != sc->node_id) {
> > >              error_setg(&local_err, "Invalid node-id=%d of thread[cpu-index: %d]"
> > >                  " on CPU[core-id: %d, node-id: %d], node-id must be the same",
> > > -                 node_id, cs->cpu_index, cc->core_id, core_node_id);
> > > +                 node_id, cs->cpu_index, cc->core_id, sc->node_id);
> > >              goto err;
> > >          }
> > >          if (node_id < nb_numa_nodes) {
> > > @@ -263,6 +262,11 @@ static const char *spapr_core_models[] = {
> > >      "POWER9_v1.0",
> > >  };
> > >  
> > > +static Property spapr_cpu_core_properties[] = {
> > > +    DEFINE_PROP_INT32("node-id", sPAPRCPUCore, node_id, CPU_UNSET_NUMA_NODE_ID),
> > > +    DEFINE_PROP_END_OF_LIST()
> > > +};
> > > +
> > >  void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> > >  {
> > >      DeviceClass *dc = DEVICE_CLASS(oc);
> > > @@ -270,6 +274,7 @@ void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> > >  
> > >      dc->realize = spapr_cpu_core_realize;
> > >      dc->unrealize = spapr_cpu_core_unrealizefn;
> > > +    dc->props = spapr_cpu_core_properties;
> > >      scc->cpu_class = cpu_class_by_name(TYPE_POWERPC_CPU, data);
> > >      g_assert(scc->cpu_class);
> > >  }
> > 
>
Igor Mammedov May 5, 2017, 8:04 a.m. UTC | #4
On Fri, 5 May 2017 02:49:52 +1000
David Gibson <david@gibson.dropbear.id.au> wrote:

> On Wed, May 03, 2017 at 06:12:17PM +0200, Igor Mammedov wrote:
> > On Wed, 3 May 2017 11:46:44 -0300
> > Eduardo Habkost <ehabkost@redhat.com> wrote:
> >   
> > > On Wed, May 03, 2017 at 02:57:00PM +0200, Igor Mammedov wrote:  
> > > > it will allow switching from cpu_index to core based numa
> > > > mapping in follow up patches.
> > > > 
> > > > Signed-off-by: Igor Mammedov <imammedo@redhat.com>
> > > > Reviewed-by: David Gibson <david@gibson.dropbear.id.au>    
> > > 
> > > Have you considered adding this to TYPE_CPU instead of
> > > duplicating the same code on multiple architectures/boards?  
> > it was in TYPE_CPU at RFC time, but it adds public node-id
> > property to every CPU.
> > So I've rewrote it they way it would affect only necessary CPUs,
> > 
> > it might be possible to generalize node_id sanity checks at
> > pre_plug time into a common wrapper, I can do it on top so
> > it would be visible what it's generalized (or an extra patch on
> > respin)  
> 
> Note that the spapr cpu core type here is *not* a descendent of
> TYPE_CPU (the threads under it are).
yep, what I was saying is that numa checks in pre_plug callbacks
are very similar and it might be possible to replaces them with
common function.

> >   
> > >   
> > > > ---
> > > >  include/hw/ppc/spapr_cpu_core.h |  1 +
> > > >  include/qom/cpu.h               |  2 ++
> > > >  hw/ppc/spapr.c                  | 17 +++++++++++++++++
> > > >  hw/ppc/spapr_cpu_core.c         | 11 ++++++++---
> > > >  4 files changed, 28 insertions(+), 3 deletions(-)
> > > > 
> > > > diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
> > > > index 3c35665..93051e9 100644
> > > > --- a/include/hw/ppc/spapr_cpu_core.h
> > > > +++ b/include/hw/ppc/spapr_cpu_core.h
> > > > @@ -27,6 +27,7 @@ typedef struct sPAPRCPUCore {
> > > >  
> > > >      /*< public >*/
> > > >      void *threads;
> > > > +    int node_id;
> > > >  } sPAPRCPUCore;
> > > >  
> > > >  typedef struct sPAPRCPUCoreClass {
> > > > diff --git a/include/qom/cpu.h b/include/qom/cpu.h
> > > > index 5d10359..55214ce 100644
> > > > --- a/include/qom/cpu.h
> > > > +++ b/include/qom/cpu.h
> > > > @@ -258,6 +258,8 @@ typedef void (*run_on_cpu_func)(CPUState *cpu, run_on_cpu_data data);
> > > >  
> > > >  struct qemu_work_item;
> > > >  
> > > > +#define CPU_UNSET_NUMA_NODE_ID -1
> > > > +
> > > >  /**
> > > >   * CPUState:
> > > >   * @cpu_index: CPU index (informative).
> > > > diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> > > > index 33405a0..7f58ee4 100644
> > > > --- a/hw/ppc/spapr.c
> > > > +++ b/hw/ppc/spapr.c
> > > > @@ -2824,9 +2824,11 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> > > >      MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev);
> > > >      Error *local_err = NULL;
> > > >      CPUCore *cc = CPU_CORE(dev);
> > > > +    sPAPRCPUCore *sc = SPAPR_CPU_CORE(dev);
> > > >      char *base_core_type = spapr_get_cpu_core_type(machine->cpu_model);
> > > >      const char *type = object_get_typename(OBJECT(dev));
> > > >      CPUArchId *core_slot;
> > > > +    int node_id;
> > > >      int index;
> > > >  
> > > >      if (dev->hotplugged && !mc->has_hotpluggable_cpus) {
> > > > @@ -2861,6 +2863,21 @@ static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
> > > >          goto out;
> > > >      }
> > > >  
> > > > +    node_id = numa_get_node_for_cpu(cc->core_id);
> > > > +    if (node_id == nb_numa_nodes) {
> > > > +        /* by default CPUState::numa_node was 0 if it's not set via CLI
> > > > +         * keep it this way for now but in future we probably should
> > > > +         * refuse to start up with incomplete numa mapping */
> > > > +        node_id = 0;
> > > > +    }
> > > > +    if (sc->node_id == CPU_UNSET_NUMA_NODE_ID) {
> > > > +        sc->node_id = node_id;
> > > > +    } else if (sc->node_id != node_id) {
> > > > +        error_setg(&local_err, "node-id %d must match numa node specified"
> > > > +            "with -numa option for cpu-index %d", sc->node_id, cc->core_id);
> > > > +        goto out;
> > > > +    }
> > > > +
> > > >  out:
> > > >      g_free(base_core_type);
> > > >      error_propagate(errp, local_err);
> > > > diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
> > > > index 4389ef4..9de7a56 100644
> > > > --- a/hw/ppc/spapr_cpu_core.c
> > > > +++ b/hw/ppc/spapr_cpu_core.c
> > > > @@ -176,7 +176,6 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
> > > >      const char *typename = object_class_get_name(scc->cpu_class);
> > > >      size_t size = object_type_get_instance_size(typename);
> > > >      Error *local_err = NULL;
> > > > -    int core_node_id = numa_get_node_for_cpu(cc->core_id);;
> > > >      void *obj;
> > > >      int i, j;
> > > >  
> > > > @@ -194,10 +193,10 @@ static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
> > > >  
> > > >          /* Set NUMA node for the added CPUs  */
> > > >          node_id = numa_get_node_for_cpu(cs->cpu_index);
> > > > -        if (node_id != core_node_id) {
> > > > +        if (node_id != sc->node_id) {
> > > >              error_setg(&local_err, "Invalid node-id=%d of thread[cpu-index: %d]"
> > > >                  " on CPU[core-id: %d, node-id: %d], node-id must be the same",
> > > > -                 node_id, cs->cpu_index, cc->core_id, core_node_id);
> > > > +                 node_id, cs->cpu_index, cc->core_id, sc->node_id);
> > > >              goto err;
> > > >          }
> > > >          if (node_id < nb_numa_nodes) {
> > > > @@ -263,6 +262,11 @@ static const char *spapr_core_models[] = {
> > > >      "POWER9_v1.0",
> > > >  };
> > > >  
> > > > +static Property spapr_cpu_core_properties[] = {
> > > > +    DEFINE_PROP_INT32("node-id", sPAPRCPUCore, node_id, CPU_UNSET_NUMA_NODE_ID),
> > > > +    DEFINE_PROP_END_OF_LIST()
> > > > +};
> > > > +
> > > >  void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> > > >  {
> > > >      DeviceClass *dc = DEVICE_CLASS(oc);
> > > > @@ -270,6 +274,7 @@ void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
> > > >  
> > > >      dc->realize = spapr_cpu_core_realize;
> > > >      dc->unrealize = spapr_cpu_core_unrealizefn;
> > > > +    dc->props = spapr_cpu_core_properties;
> > > >      scc->cpu_class = cpu_class_by_name(TYPE_POWERPC_CPU, data);
> > > >      g_assert(scc->cpu_class);
> > > >  }  
> > >   
> >   
>
diff mbox

Patch

diff --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h
index 3c35665..93051e9 100644
--- a/include/hw/ppc/spapr_cpu_core.h
+++ b/include/hw/ppc/spapr_cpu_core.h
@@ -27,6 +27,7 @@  typedef struct sPAPRCPUCore {
 
     /*< public >*/
     void *threads;
+    int node_id;
 } sPAPRCPUCore;
 
 typedef struct sPAPRCPUCoreClass {
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 5d10359..55214ce 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -258,6 +258,8 @@  typedef void (*run_on_cpu_func)(CPUState *cpu, run_on_cpu_data data);
 
 struct qemu_work_item;
 
+#define CPU_UNSET_NUMA_NODE_ID -1
+
 /**
  * CPUState:
  * @cpu_index: CPU index (informative).
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index 33405a0..7f58ee4 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2824,9 +2824,11 @@  static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
     MachineClass *mc = MACHINE_GET_CLASS(hotplug_dev);
     Error *local_err = NULL;
     CPUCore *cc = CPU_CORE(dev);
+    sPAPRCPUCore *sc = SPAPR_CPU_CORE(dev);
     char *base_core_type = spapr_get_cpu_core_type(machine->cpu_model);
     const char *type = object_get_typename(OBJECT(dev));
     CPUArchId *core_slot;
+    int node_id;
     int index;
 
     if (dev->hotplugged && !mc->has_hotpluggable_cpus) {
@@ -2861,6 +2863,21 @@  static void spapr_core_pre_plug(HotplugHandler *hotplug_dev, DeviceState *dev,
         goto out;
     }
 
+    node_id = numa_get_node_for_cpu(cc->core_id);
+    if (node_id == nb_numa_nodes) {
+        /* by default CPUState::numa_node was 0 if it's not set via CLI
+         * keep it this way for now but in future we probably should
+         * refuse to start up with incomplete numa mapping */
+        node_id = 0;
+    }
+    if (sc->node_id == CPU_UNSET_NUMA_NODE_ID) {
+        sc->node_id = node_id;
+    } else if (sc->node_id != node_id) {
+        error_setg(&local_err, "node-id %d must match numa node specified"
+            "with -numa option for cpu-index %d", sc->node_id, cc->core_id);
+        goto out;
+    }
+
 out:
     g_free(base_core_type);
     error_propagate(errp, local_err);
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 4389ef4..9de7a56 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -176,7 +176,6 @@  static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
     const char *typename = object_class_get_name(scc->cpu_class);
     size_t size = object_type_get_instance_size(typename);
     Error *local_err = NULL;
-    int core_node_id = numa_get_node_for_cpu(cc->core_id);;
     void *obj;
     int i, j;
 
@@ -194,10 +193,10 @@  static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
 
         /* Set NUMA node for the added CPUs  */
         node_id = numa_get_node_for_cpu(cs->cpu_index);
-        if (node_id != core_node_id) {
+        if (node_id != sc->node_id) {
             error_setg(&local_err, "Invalid node-id=%d of thread[cpu-index: %d]"
                 " on CPU[core-id: %d, node-id: %d], node-id must be the same",
-                 node_id, cs->cpu_index, cc->core_id, core_node_id);
+                 node_id, cs->cpu_index, cc->core_id, sc->node_id);
             goto err;
         }
         if (node_id < nb_numa_nodes) {
@@ -263,6 +262,11 @@  static const char *spapr_core_models[] = {
     "POWER9_v1.0",
 };
 
+static Property spapr_cpu_core_properties[] = {
+    DEFINE_PROP_INT32("node-id", sPAPRCPUCore, node_id, CPU_UNSET_NUMA_NODE_ID),
+    DEFINE_PROP_END_OF_LIST()
+};
+
 void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
@@ -270,6 +274,7 @@  void spapr_cpu_core_class_init(ObjectClass *oc, void *data)
 
     dc->realize = spapr_cpu_core_realize;
     dc->unrealize = spapr_cpu_core_unrealizefn;
+    dc->props = spapr_cpu_core_properties;
     scc->cpu_class = cpu_class_by_name(TYPE_POWERPC_CPU, data);
     g_assert(scc->cpu_class);
 }