it returns a list of present/possible to hotplug CPU
objects with a list of properties to use with
device_add.
in spapr case returned list would looks like:
-> { "execute": "query-hotpluggable-cpus" }
<- {"return": [
{"core": 1 }, "type": "spapr-cpu-core"},
{"core": 0 }, "type": "spapr-cpu-core", "qom-path":
"/machine/unattached/device[0]"}
]}'
TODO:
add 'node' property for core <-> numa node mapping
Signed-off-by: Igor Mammedov <[email protected]>
---
it's only compile tested and needs spapr-cpu-core
to have 'core' property to work with device_add.
---
hw/ppc/spapr.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index db33c29..cd4b891 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -65,6 +65,7 @@
#include "hw/compat.h"
#include "qemu-common.h"
#include "hw/ppc/spapr_cpu_core.h"
+#include "qmp-commands.h"
#include <libfdt.h>
@@ -2404,6 +2405,37 @@ static unsigned spapr_cpu_index_to_socket_id(unsigned
cpu_index)
return cpu_index / smp_threads / smp_cores;
}
+HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
+{
+ int i;
+ HotpluggableCPUList *head = NULL;
+ sPAPRMachineState *spapr = SPAPR_MACHINE(qdev_get_machine());
+ int spapr_max_cores = max_cpus / smp_threads;
+
+ for (i = 0; i < spapr_max_cores; i++) {
+ HotpluggableCPUList *list_item = g_new0(HotpluggableCPUList, 1);
+ HotpluggableCPU *cpu_item = g_new0(HotpluggableCPU, 1);
+ CpuInstanceProps *cpu_props = g_new0(CpuInstanceProps, 1);
+
+ cpu_item->type = g_strdup(TYPE_SPAPR_CPU_CORE);
+ cpu_item->has_props = true;
+ cpu_props->has_core = true;
+ cpu_props->core = i;
+ /* TODO: add 'has_node/node' here to describe
+ to which node core belongs */
+
+ cpu_item->props = cpu_props;
+ if (spapr->cores[i]) {
+ cpu_item->has_qom_path = true;
+ cpu_item->qom_path = object_get_canonical_path(spapr->cores[i]);
+ }
+ list_item->value = cpu_item;
+ list_item->next = head;
+ head = list_item;
+ }
+ return head;
+}
+
static void spapr_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
--
1.8.3.1
