Re: [Qemu-devel] [PATCH v2] arm: add device tree support

[Paul Brook <paul@codesourcery.com>]

> We could also just change machine->init() and pass the dtb in there. In a
> QOM world these would become machine device properties anyways.
> 
>     machine->init(ram_size, boot_devices,
>                   kernel_filename, kernel_cmdline, initrd_filename,
> cpu_model);
> 
> Essentially we shouldn't treat -dtb any different than -kernel or -initrd.
> It's also useful for more than ARM, namely embedded ppc systems. But I can
> easily post a follow-up patch for those.

Changing machine->init means you have to touch every single board file, and 
clone the exact same code for every machine that uses arm_boot.c.  All of 
which will be rewritten in the near future.

machine->init is a particularly suckiy interface to start with, we want to be 
using it less, not more.  It's not like we're going support multiple machine 
instanced.  At least not before machine->init is removed altogether.

Paul