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authorIgor Mammedov <imammedo@redhat.com>2013-04-30 15:41:25 +0200
committerAndreas Färber <afaerber@suse.de>2013-05-01 13:06:07 +0200
commit69ca3ea5e192251f27510554611bcff6f036a00b (patch)
tree037f67da32c909818efef1123be357feb44b6168
parentb4fc7b4326112538e0dbdc7fd019652ba8cc3281 (diff)
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QMP: Add cpu-add command
Adds "cpu-add id=xxx" QMP command. cpu-add's "id" argument is a CPU number in a range [0..max-cpus) Example QMP command: -> { "execute": "cpu-add", "arguments": { "id": 2 } } <- { "return": {} } Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
-rw-r--r--qapi-schema.json13
-rw-r--r--qmp-commands.hx23
-rw-r--r--qmp.c10
3 files changed, 46 insertions, 0 deletions
diff --git a/qapi-schema.json b/qapi-schema.json
index 65be8f4f37..7797400666 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1390,6 +1390,19 @@
{ 'command': 'cpu', 'data': {'index': 'int'} }
##
+# @cpu-add
+#
+# Adds CPU with specified ID
+#
+# @id: ID of CPU to be created, valid values [0..max_cpus)
+#
+# Returns: Nothing on success
+#
+# Since 1.5
+##
+{ 'command': 'cpu-add', 'data': {'id': 'int'} }
+
+##
# @memsave:
#
# Save a portion of guest memory to a file.
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 0e891323c7..ed99eb80e0 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -385,6 +385,29 @@ Note: CPUs' indexes are obtained with the 'query-cpus' command.
EQMP
{
+ .name = "cpu-add",
+ .args_type = "id:i",
+ .mhandler.cmd_new = qmp_marshal_input_cpu_add,
+ },
+
+SQMP
+cpu-add
+-------
+
+Adds virtual cpu
+
+Arguments:
+
+- "id": cpu id (json-int)
+
+Example:
+
+-> { "execute": "cpu-add", "arguments": { "id": 2 } }
+<- { "return": {} }
+
+EQMP
+
+ {
.name = "memsave",
.args_type = "val:l,size:i,filename:s,cpu:i?",
.mhandler.cmd_new = qmp_marshal_input_memsave,
diff --git a/qmp.c b/qmp.c
index 4676993805..4c149b33a4 100644
--- a/qmp.c
+++ b/qmp.c
@@ -24,6 +24,7 @@
#include "hw/qdev.h"
#include "sysemu/blockdev.h"
#include "qom/qom-qobject.h"
+#include "hw/boards.h"
NameInfo *qmp_query_name(Error **errp)
{
@@ -108,6 +109,15 @@ void qmp_cpu(int64_t index, Error **errp)
/* Just do nothing */
}
+void qmp_cpu_add(int64_t id, Error **errp)
+{
+ if (current_machine->hot_add_cpu) {
+ current_machine->hot_add_cpu(id, errp);
+ } else {
+ error_setg(errp, "Not supported");
+ }
+}
+
#ifndef CONFIG_VNC
/* If VNC support is enabled, the "true" query-vnc command is
defined in the VNC subsystem */