Re: [PATCH 1/1] hw/s390x: modularize virtio-gpu-ccw

[Gerd Hoffmann]

  Hi,

> I don't see way around target-specific modules. With the modifications
> suggested by Thomas and Connie, I was able to get the new module to
> compile regardless of the target,

Cool (should have checked all mails before sending replies ...).

> but that "fixes" s390x at the expense
> of breaking all the other targets. For example:
> ./qemu-system-x86_64 -device help
> Type 'virtio-gpu-ccw' is missing its parent 'virtio-ccw-device'
> Aborted

Hmm, this is a new failure variant.  In the PCI case (see other mail)
the module doesn't load in the first place due to missing symbols.

Maybe we need a type_register_mayfail() variant which doesn't abort in
case the parent isn't found (see also commit
501093207eb1ed4845e0a65ee1ce7db7b9676e0b).

HTH,
  Gerd