The piix3 and piix4 southbridge devices still rely on create() functions which
are deprecated. This series resolves these functions piece by piece to
modernize the code.

Both devices are modified in lockstep where possible to provide more context.

Testing done:
* `qemu-system-x86_64 -M pc -m 2G -cdrom archlinux-2022.05.01-x86_64.iso`
* `qemu-system-mipsel -M malta -kernel vmlinux-3.2.0-4-4kc-malta -hda debian_wheezy_mipsel_standard.qcow2 -append "root=/dev/sda1 console=tty0"`

In both cases the system booted successfully and it was possible to shut down
the system using the `poweroff` command.

Bernhard Beschow (6):
  include/hw: Move TYPE_PIIX4_PCI_DEVICE to southbridge/piix.h
  hw/isa/piix{3,4}: Move pci_map_irq_fn's near pci_set_irq_fn's
  hw/isa/piix{3,4}: QOM'ify PCI device creation and wiring
  hw/isa/piix{3,4}: Factor out ISABus retrieval from create() functions
  hw/isa/piix4: Factor out SM bus initialization from create() function
  hw/isa/piix{3,4}: Inline and remove create() functions

 hw/i386/pc_piix.c             |  7 ++-
 hw/isa/piix3.c                | 98 +++++++++++++++++++----------------
 hw/isa/piix4.c                | 91 +++++++++++++-------------------
 hw/mips/malta.c               |  9 +++-
 include/hw/isa/isa.h          |  2 -
 include/hw/southbridge/piix.h |  6 +--
 6 files changed, 105 insertions(+), 108 deletions(-)

-- 
2.36.1