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Tue, 17 May 2016 10:43:57 -0400 From: Igor Mammedov To: qemu-devel@nongnu.org Date: Tue, 17 May 2016 16:43:09 +0200 Message-Id: <1463496205-251412-18-git-send-email-imammedo@redhat.com> In-Reply-To: <1463496205-251412-1-git-send-email-imammedo@redhat.com> References: <1463496205-251412-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Tue, 17 May 2016 14:43:58 +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 17/33] pc: add generic CPU unplug callbacks 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: drjones@redhat.com, ehabkost@redhat.com, rkrcmar@redhat.com, mst@redhat.com, armbru@redhat.com, marcel@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Igor Mammedov --- hw/acpi/cpu.c | 1 + hw/i386/pc.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 48 insertions(+) diff --git a/hw/acpi/cpu.c b/hw/acpi/cpu.c index 171a5f5..73258a1 100644 --- a/hw/acpi/cpu.c +++ b/hw/acpi/cpu.c @@ -104,6 +104,7 @@ void cpu_hotplug_hw_init(MemoryRegion *as, Object *owner, CPUArchIdList *id_list; int i; + assert(mc->possible_cpu_arch_ids); id_list = mc->possible_cpu_arch_ids(machine); state->dev_count = id_list->len; state->devs = g_new0(typeof(*state->devs), state->dev_count); diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 99437e0..1cad132 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1713,6 +1713,49 @@ static void pc_cpu_plug(HotplugHandler *hotplug_dev, out: error_propagate(errp, local_err); } +static void pc_cpu_unplug_request_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + HotplugHandlerClass *hhc; + Error *local_err = NULL; + PCMachineState *pcms = PC_MACHINE(hotplug_dev); + + hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); + hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); + + if (local_err) { + goto out; + } + + out: + error_propagate(errp, local_err); + +} + +static void pc_cpu_unplug_cb(HotplugHandler *hotplug_dev, + DeviceState *dev, Error **errp) +{ + HotplugHandlerClass *hhc; + Error *local_err = NULL; + PCMachineState *pcms = PC_MACHINE(hotplug_dev); + + hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev); + hhc->unplug(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err); + + if (local_err) { + goto out; + } + + /* + * TODO: enable unplug once generic CPU remove bits land + * for now guest will be able to eject CPU ACPI wise but + * it will come back again on machine reset. + */ + /* object_unparent(OBJECT(dev)); */ + + out: + error_propagate(errp, local_err); +} static void pc_machine_device_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) @@ -1729,6 +1772,8 @@ static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev, { if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { pc_dimm_unplug_request(hotplug_dev, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { + pc_cpu_unplug_request_cb(hotplug_dev, dev, errp); } else { error_setg(errp, "acpi: device unplug request for not supported device" " type: %s", object_get_typename(OBJECT(dev))); @@ -1740,6 +1785,8 @@ static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev, { if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { pc_dimm_unplug(hotplug_dev, dev, errp); + } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { + pc_cpu_unplug_cb(hotplug_dev, dev, errp); } else { error_setg(errp, "acpi: device unplug for not supported device" " type: %s", object_get_typename(OBJECT(dev)));