From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:55337) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUdFF-00082a-Tp for qemu-devel@nongnu.org; Tue, 23 Apr 2013 09:26:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UUdFC-0001Bx-V8 for qemu-devel@nongnu.org; Tue, 23 Apr 2013 09:26:53 -0400 Received: from mx1.redhat.com ([209.132.183.28]:12067) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UUdFC-0001Bj-Ns for qemu-devel@nongnu.org; Tue, 23 Apr 2013 09:26:50 -0400 Date: Tue, 23 Apr 2013 09:26:22 -0400 From: Luiz Capitulino Message-ID: <20130423092622.23f32b99@redhat.com> In-Reply-To: <1366705795-24732-22-git-send-email-imammedo@redhat.com> References: <1366705795-24732-1-git-send-email-imammedo@redhat.com> <1366705795-24732-22-git-send-email-imammedo@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 21/21] QMP: add cpu-add command List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Igor Mammedov Cc: peter.maydell@linaro.org, gleb@redhat.com, mst@redhat.com, jan.kiszka@siemens.com, qemu-devel@nongnu.org, blauwirbel@gmail.com, kraxel@redhat.com, quintela@redhat.com, armbru@redhat.com, yang.z.zhang@intel.com, ehabkost@redhat.com, stefano.stabellini@eu.citrix.com, aderumier@odiso.com, anthony.perard@citrix.com, alex.williamson@redhat.com, rth@twiddle.net, kwolf@redhat.com, aliguori@us.ibm.com, claudio.fontana@huawei.com, pbonzini@redhat.com, afaerber@suse.de On Tue, 23 Apr 2013 10:29:55 +0200 Igor Mammedov wrote: > 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 QMP parts (this and the previous patch) is trivial: Acked-by: Luiz Capitulino Just wondering, no HMP command? > --- > v6: > * added valid values description to qapi schema > * split out cpu_hot_add hooks introduction into separate patch > * split out implementation of cpu_hot_add for target-i386 > v5: > * accept id=[0..max_cpus) range in cpu-add command > v4: > * merge "qmp: add cpu-add qmp command" & "target-i386: implement CPU hot-add" patches > * move notifier call to CPUCLass.realize() > * add hook cpu_hot_add to QEMUMachine > * make QEMUMachineInitArgs global and keep default cpu_model there > > v3: > * it appears that 'online/offline' in cpu-set are confusing people > with what command actually does and users might have to distinguish > if 'offline' is not implemented by parsing error message. To simplify > things replace cpu-set with cpu-add command to show more clear what > command does and just add cpu-del when CPU remove is implemented. > > v2: > * s/cpu_set/cpu-set/ > * qmp doc style fix > * use bool type instead of opencodding online/offline string > suggested-by: Eric Blake > --- > qapi-schema.json | 11 +++++++++++ > qmp-commands.hx | 23 +++++++++++++++++++++++ > qmp.c | 10 ++++++++++ > 3 files changed, 44 insertions(+), 0 deletions(-) > > diff --git a/qapi-schema.json b/qapi-schema.json > index 751d3c2..11a5c82 100644 > --- a/qapi-schema.json > +++ b/qapi-schema.json > @@ -1387,6 +1387,17 @@ > { '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 > +## > +{ '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 4d65422..1e5d299 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 ed6c7ef..dd34be6 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 */