Re: [PATCH 4/5] hw/s390x/css-bridge: switch virtual-css bus to 3-phase-reset

[Zhao Liu <zhao1.liu@intel.com>]

On Fri, Jan 19, 2024 at 04:35:11PM +0000, Peter Maydell wrote:
> Date: Fri, 19 Jan 2024 16:35:11 +0000
> From: Peter Maydell <peter.maydell@linaro.org>
> Subject: [PATCH 4/5] hw/s390x/css-bridge: switch virtual-css bus to
>  3-phase-reset
> X-Mailer: git-send-email 2.34.1
> 
> Switch the s390x virtual-css bus from using BusClass::reset to the
> Resettable interface.
> 
> This has no behavioural change, because the BusClass code to support
> subclasses that use the legacy BusClass::reset will call that method
> in the hold phase of 3-phase reset.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
>  hw/s390x/css-bridge.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>

> 
> diff --git a/hw/s390x/css-bridge.c b/hw/s390x/css-bridge.c
> index 15d26efc951..34639f21435 100644
> --- a/hw/s390x/css-bridge.c
> +++ b/hw/s390x/css-bridge.c
> @@ -56,7 +56,7 @@ static void ccw_device_unplug(HotplugHandler *hotplug_dev,
>      qdev_unrealize(dev);
>  }
>  
> -static void virtual_css_bus_reset(BusState *qbus)
> +static void virtual_css_bus_reset_hold(Object *obj)
>  {
>      /* This should actually be modelled via the generic css */
>      css_reset();
> @@ -81,8 +81,9 @@ static char *virtual_css_bus_get_dev_path(DeviceState *dev)
>  static void virtual_css_bus_class_init(ObjectClass *klass, void *data)
>  {
>      BusClass *k = BUS_CLASS(klass);
> +    ResettableClass *rc = RESETTABLE_CLASS(klass);
>  
> -    k->reset = virtual_css_bus_reset;
> +    rc->phases.hold = virtual_css_bus_reset_hold;
>      k->get_dev_path = virtual_css_bus_get_dev_path;
>  }
>  
> -- 
> 2.34.1
> 
>