Re: [Qemu-devel] [RESEND PATCH v1 07/13] pc-dimm: Add memory hot unplug request support for pc-dimm.

[Igor Mammedov]

On Thu, 8 Jan 2015 09:06:14 +0800
Tang Chen <address@hidden> wrote:

> Implement memory unplug request cb for pc-dimm, and call it in
> pc_machine_device_unplug_request_cb().
> ---
>  hw/i386/pc.c | 28 ++++++++++++++++++++++++++--
>  1 file changed, 26 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 0f3b1e0..f501f1f 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -1671,6 +1671,26 @@ out:
>      error_propagate(errp, local_err);
>  }
>  
> +static void pc_dimm_unplug_request(HotplugHandler *hotplug_dev,
> +                                   DeviceState *dev, Error **errp)
> +{
> +    HotplugHandlerClass *hhc;
> +    Error *local_err = NULL;
> +    PCMachineState *pcms = PC_MACHINE(hotplug_dev);
> +
> +    if (!pcms->acpi_dev) {
> +        error_setg(&local_err,
> +                   "memory hotplug is not enabled: missing acpi device");
> +     goto out;
wrong indent

> +    }
> +
> +    hhc = HOTPLUG_HANDLER_GET_CLASS(pcms->acpi_dev);
> +    hhc->unplug_request(HOTPLUG_HANDLER(pcms->acpi_dev), dev, &local_err);
> +
> +out:
> +    error_propagate(errp, local_err);
> +}
> +
>  static void pc_cpu_plug(HotplugHandler *hotplug_dev,
>                          DeviceState *dev, Error **errp)
>  {
> @@ -1713,8 +1733,12 @@ static void pc_machine_device_plug_cb(HotplugHandler 
> *hotplug_dev,
>  static void pc_machine_device_unplug_request_cb(HotplugHandler *hotplug_dev,
>                                                  DeviceState *dev, Error 
> **errp)
>  {
> -    error_setg(errp, "acpi: device unplug request for not supported device"
> -               " type: %s", object_get_typename(OBJECT(dev)));
> +    if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
> +        pc_dimm_unplug_request(hotplug_dev, dev, errp);
> +    } else {
> +        error_setg(errp, "acpi: device unplug request for not supported 
> device"
> +                   " type: %s", object_get_typename(OBJECT(dev)));
> +    }
>  }
>  
>  static void pc_machine_device_unplug_cb(HotplugHandler *hotplug_dev,