Re: [PATCH v6 10/11] vl: replace deprecated qbus_reset_all registration

[Richard Henderson <richard.henderson@linaro.org>]

On 12/20/19 10:50 PM, Damien Hedde wrote:
> Replace deprecated qbus_reset_all by resettable_cold_reset_fn for
> the sysbus reset registration.
> 
> Apart for the raspi machines, this does not impact the behavior
> because:
> + at this point resettable just calls the old reset methods of devices
>   and buses in the same order as qdev/qbus.
> + resettable handlers registered with qemu_register_reset are
>   serialized; there is no interleaving.
> + eventual explicit calls to legacy reset API (device_reset or
>   qdev/qbus_reset) inside this reset handler will not be masked out
>   by resettable mechanism; they do not go through resettable api.
> 
> For the raspi machines, during the sysbus reset the sd-card is not
> reset twice anymore but only once. This is a consequence of switching
> both sysbus reset and changing parent to resettable; it detects the
> second reset is not needed. This has no impact on the state after
> reset; the sd-card reset method only reset local state and query
> information from the block backend.
> 
> Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
> ---

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~