Re: [Qemu-devel] [Qemu-block] How to generate custom fw paths for IDE devices?

[Paolo Bonzini <pbonzini@redhat.com>]

On 18/07/2018 23:13, Mark Cave-Ayland wrote:
> One option may be to consider subclassing IDEBus and overriding
> idebus_get_fw_dev_path() there, but the cmd646 device is a child of
> TYPE_PCI_IDE which has its own internal IDEBus and so it seems
> overriding it is impossible.

It's possible as long as you don't add any members.  You can add a new
const char* argument to ide_bus_new, and call it from cmd646.

However, another possibility is to implement the FWPathProvider
interface in the sun4u machine type.  See hw/ppc/spapr.c for an example.

Thanks,

Paolo