From 0b8497f08cb6a933b31c1639ead2da2b536062ec Mon Sep 17 00:00:00 2001 From: Igor Mammedov Date: Wed, 10 May 2017 13:29:46 +0200 Subject: [PATCH] spapr: add node-id property to sPAPR core it will allow switching from cpu_index to core based numa mapping in follow up patches. Signed-off-by: Igor Mammedov Reviewed-by: David Gibson Message-Id: <1494415802-227633-3-git-send-email-imammedo@redhat.com> Signed-off-by: Eduardo Habkost --- hw/ppc/spapr.c | 17 +++++++++++++++++ hw/ppc/spapr_cpu_core.c | 11 ++++++++--- include/hw/ppc/spapr_cpu_core.h | 1 + include/qom/cpu.h | 2 ++ 4 files changed, 28 insertions(+), 3 deletions(-) diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index 2077e4b3c6..a952a39836 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 4389ef4c2a..9de7a5610c 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 --git a/include/hw/ppc/spapr_cpu_core.h b/include/hw/ppc/spapr_cpu_core.h index 3c35665221..93051e9ecf 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 5d10359c8f..55214ce131 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).