From nobody Sat Feb 7 09:38:10 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1537891809610429.6145308925113; Tue, 25 Sep 2018 09:10:09 -0700 (PDT) Received: from localhost ([::1]:54091 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g4pua-0000Gd-An for importer@patchew.org; Tue, 25 Sep 2018 12:10:08 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36159) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1g4pnj-0002TT-Iu for qemu-devel@nongnu.org; Tue, 25 Sep 2018 12:03:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1g4pnd-0006KH-DU for qemu-devel@nongnu.org; Tue, 25 Sep 2018 12:03:03 -0400 Received: from mx1.redhat.com ([209.132.183.28]:49424) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1g4pnd-0006Jg-4x for qemu-devel@nongnu.org; Tue, 25 Sep 2018 12:02:57 -0400 Received: from smtp.corp.redhat.com (int-mx12.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 48A8430842D0 for ; Tue, 25 Sep 2018 16:02:56 +0000 (UTC) Received: from paraplu.localdomain (ovpn-117-120.ams2.redhat.com [10.36.117.120]) by smtp.corp.redhat.com (Postfix) with ESMTP id 05FAD5E526; Tue, 25 Sep 2018 16:02:54 +0000 (UTC) From: Kashyap Chamarthy To: qemu-devel@nongnu.org Date: Tue, 25 Sep 2018 18:02:47 +0200 Message-Id: <20180925160248.30801-2-kchamart@redhat.com> In-Reply-To: <20180925160248.30801-1-kchamart@redhat.com> References: <20180925160248.30801-1-kchamart@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.40]); Tue, 25 Sep 2018 16:02:56 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 1/2] Deprecate QMP `cpu-add` X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: imammedo@redhat.com, Kashyap Chamarthy , armbru@redhat.com, ehabkost@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The intended functionality of QMP `cpu-add` is replaced with `device_add` (and `query-hotpluggable-cpus`). So let's deprecate `cpu-add`. A complete example of vCPU hotplug with the recommended way (using `device_add`) is provided as part of a seperate docs patch. Suggested-by: Eduardo Habkost --- --- qapi/misc.json | 8 +++++++- qemu-deprecated.texi | 5 +++++ 2 files changed, 12 insertions(+), 1 deletion(-) diff --git a/qapi/misc.json b/qapi/misc.json index d450cfef21..6479b8f8a6 100644 --- a/qapi/misc.json +++ b/qapi/misc.json @@ -1104,7 +1104,11 @@ ## # @cpu-add: # -# Adds CPU with specified ID +# Adds CPU with specified ID. +# +# Notes: This command is deprecated. The `device_add` command should be +# used instead. See the `query-hotpluggable-cpus` command for +# details. # # @id: ID of CPU to be created, valid values [0..max_cpus) # @@ -3213,6 +3217,8 @@ ## # @query-hotpluggable-cpus: # +# TODO: Better documentation; currently there is none. +# # Returns: a list of HotpluggableCPU objects. # # Since: 2.7 diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi index 1b9c007f12..c86924ad9a 100644 --- a/qemu-deprecated.texi +++ b/qemu-deprecated.texi @@ -155,6 +155,11 @@ The ``query-cpus'' command is replaced by the ``query-= cpus-fast'' command. The ``arch'' output member of the ``query-cpus-fast'' command is replaced by the ``target'' output member. =20 +@subsection cpu-add (since 3.1) + +Use ``device_add'' for hotplugging vCPUs instead of ``cpu-add''. See +documentation of ``query-hotpluggable-cpus'' for additional details. + @section System emulator devices =20 @subsection ivshmem (since 2.6.0) --=20 2.17.1