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authorIgor Mammedov <imammedo@redhat.com>2018-05-04 10:37:48 +0200
committerEduardo Habkost <ehabkost@redhat.com>2018-05-30 13:19:14 -0300
commitf3be67812c226162f86ce92634bd913714445420 (patch)
tree5ff239e4f1b6431ff6908d678110ba288bfe1871 /numa.c
parent899eaab464fab310ecb16c8e2572d835ae1929da (diff)
qmp: add set-numa-node command
Command is allowed to run only in preconfig stage and will allow to configure numa mapping for CPUs depending on possible CPUs layout (query-hotpluggable-cpus) for given machine instance. Example of configuration session: $QEMU -smp 2 --preconfig ... QMP: -> {'execute': 'query-hotpluggable-cpus' } <- {'return': [ {'props': {'core-id': 0, 'thread-id': 0, 'socket-id': 1}, ... }, {'props': {'core-id': 0, 'thread-id': 0, 'socket-id': 0}, ... } ]} -> {'execute': 'set-numa-node', 'arguments': { 'type': 'node', 'nodeid': 0 } } <- {'return': {}} -> {'execute': 'set-numa-node', 'arguments': { 'type': 'cpu', 'node-id': 0, 'core-id': 0, 'thread-id': 0, 'socket-id': 1, } } <- {'return': {}} -> {'execute': 'set-numa-node', 'arguments': { 'type': 'node', 'nodeid': 1 } } -> {'execute': 'set-numa-node', 'arguments': { 'type': 'cpu', 'node-id': 1, 'core-id': 0, 'thread-id': 0, 'socket-id': 0 } } <- {'return': {}} -> {'execute': 'query-hotpluggable-cpus' } <- {'return': [ {'props': {'core-id': 0, 'thread-id': 0, 'node-id': 0, 'socket-id': 1}, ... }, {'props': {'core-id': 0, 'thread-id': 0, 'node-id': 1, 'socket-id': 0}, ... } ]} Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <1525423069-61903-11-git-send-email-imammedo@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> [ehabkost: Changed "since 2.13" to "since 3.0"] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'numa.c')
-rw-r--r--numa.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/numa.c b/numa.c
index 53bd65a05d..33572bfa74 100644
--- a/numa.c
+++ b/numa.c
@@ -444,6 +444,17 @@ void parse_numa_opts(MachineState *ms)
}
}
+void qmp_set_numa_node(NumaOptions *cmd, Error **errp)
+{
+ if (!runstate_check(RUN_STATE_PRECONFIG)) {
+ error_setg(errp, "The command is permitted only in '%s' state",
+ RunState_str(RUN_STATE_PRECONFIG));
+ return;
+ }
+
+ set_numa_options(MACHINE(qdev_get_machine()), cmd, errp);
+}
+
void numa_cpu_pre_plug(const CPUArchId *slot, DeviceState *dev, Error **errp)
{
int node_id = object_property_get_int(OBJECT(dev), "node-id", &error_abort);