Re: [Qemu-ppc] [Qemu-devel] [PATCH] hw/misc/macio: Mark the macio devices with user_creatable = false

[Mark Cave-Ayland]

On 07/03/18 14:22, Thomas Huth wrote:

> The macio devices currently cause a crash when the user tries to
> instantiate them on a different machine:
>
> $ ppc64-softmmu/qemu-system-ppc64 -device macio-newworld
> Unexpected error in qemu_chr_fe_init() at chardev/char-fe.c:222:
> qemu-system-ppc64: -device macio-newworld: Device 'serial0' is in use
> Aborted (core dumped)
>
> These devices are clearly not intended to be creatable by the user
> since they are using serial_hds[] directly in their instance_init
> function. So let's mark them with user_creatable = false.
>
> Signed-off-by: Thomas Huth <address@hidden>
> ---
>   hw/misc/macio/macio.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/hw/misc/macio/macio.c b/hw/misc/macio/macio.c
> index af1bd46..454244f 100644
> --- a/hw/misc/macio/macio.c
> +++ b/hw/misc/macio/macio.c
> @@ -406,6 +406,8 @@ static void macio_class_init(ObjectClass *klass, void *data)
>       k->class_id = PCI_CLASS_OTHERS << 8;
>       dc->props = macio_properties;
>       set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
> +    /* Reason: Uses serial_hds in macio_instance_init */
> +    dc->user_creatable = false;
>   }
>   
>   static const TypeInfo macio_oldworld_type_info = {

Looks like both Daniel and Peter also agree this is the correct 
approach, so:

Reviewed-by: Mark Cave-Ayland <address@hidden>


ATB,

Mark.