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[Qemu-devel] [RFC v3 2/2] spapr: implement query-hotpluggable-cpus QMP c
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [RFC v3 2/2] spapr: implement query-hotpluggable-cpus QMP command |
Date: |
Tue, 15 Mar 2016 14:24:08 +0100 |
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": [
{ "props": { "core": 1 }, "type": "spapr-cpu-core",
"vcpus-count": 2 },
{ "props": { "core": 0 }, "type": "spapr-cpu-core",
"vcpus-count": 2,
"qom-path": "/machine/unattached/device[0]"}
]}'
TODO:
add 'node' property for core <-> numa node mapping
Signed-off-by: Igor Mammedov <address@hidden>
---
it's only compile tested
---
hw/ppc/spapr.c | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index b1e9ba2..e1ce983 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>
@@ -2399,6 +2400,37 @@ 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(typeof(*list_item), 1);
+ HotpluggableCPU *cpu_item = g_new0(typeof(*cpu_item), 1);
+ CpuInstanceProperties *cpu_props = g_new0(typeof(*cpu_props), 1);
+
+ cpu_item->type = g_strdup(TYPE_SPAPR_CPU_CORE);
+ cpu_item->vcpus_count = smp_threads;
+ 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
[Qemu-devel] [RFC v3 2/2] spapr: implement query-hotpluggable-cpus QMP command,
Igor Mammedov <=
Re: [Qemu-devel] [PATCH v3 0/2] spapr: QMP: add query-hotpluggable-cpus, Christian Borntraeger, 2016/03/16
Re: [Qemu-devel] [PATCH v3 0/2] spapr: QMP: add query-hotpluggable-cpus, Markus Armbruster, 2016/03/22