[Qemu-devel] [PATCH 00/11] ISA bus improvements

["Hervé Poussineau" <hpoussin@reactos.org>]

Following patches aim to change ISA bus to a first-citizen class in Qemu.

They add ISA bus ops, like for scsi and usb buses.

Current ISA bridges (PIIX3, PIIX4, EBUS and VT82C686) are converted
to this new API, and a simple 'isabus-bridge' device is added.

isa_address_space() operation can probably be used to remove the
infamous isa_mem_base variable. However, some work is already done
in this direction on the ML, so I didn't change anything.

Finally, add bus argument to isa_create() functions, so architectures
with multiple ISA buses (like some Alpha systems) can be emulated.

As RFC didn't receive much comments, I put this serie as patches.

Hervé Poussineau (11):
  isa: rename isa_bus_new to isa_bus_bridge_init
  isa: rework ISA bus internals, and add ISA bus ops structure
  isa: implement isa_address_space() as a method of ISA bus
  audio: give ISA bus to sound cards, instead of PIC
  pc: improve bus implementation of PIIX3 bridge
  fulong2e: move pic initialization + ISA bus creation to south bridge
  sun4u: improve bus implementation of EBus bridge
  malta: improve bus implementation of PIIX4 bridge
  isa: remove unused parameter to isa_bus_bridge_init()
  isa: give bus to isa_create() methods
  isa: remove limitation of only one ISA bus

 Makefile.objs      |    2 +-
 arch_init.c        |   10 +++---
 arch_init.h        |    2 +-
 hw/adlib.c         |    2 +-
 hw/audiodev.h      |    8 ++--
 hw/cs4231a.c       |    4 +-
 hw/fdc.h           |    2 +-
 hw/gus.c           |    4 +-
 hw/ide/isa.c       |    2 +-
 hw/isa-bridge.c    |   77 +++++++++++++++++++++++++++++++++++++++++++++
 hw/isa-bus.c       |   88 +++++++++++++++++++++++----------------------------
 hw/isa.h           |   25 ++++++++++++---
 hw/m48t59.c        |    2 +-
 hw/mc146818rtc.c   |    2 +-
 hw/mips_fulong2e.c |   11 ++-----
 hw/mips_jazz.c     |    5 ++-
 hw/mips_malta.c    |    5 +--
 hw/mips_r4k.c      |    4 +-
 hw/pc.c            |    8 ++--
 hw/pc.h            |   18 +++++-----
 hw/pc_piix.c       |    7 ++--
 hw/pcspk.c         |    2 +-
 hw/piix4.c         |   23 ++++++++++++-
 hw/piix_pci.c      |   38 +++++++++++++++++++---
 hw/ppc_prep.c      |    4 +-
 hw/sb16.c          |    4 +-
 hw/sun4u.c         |   25 ++++++++++----
 hw/vt82c686.c      |   24 +++++++++++++-
 hw/vt82c686.h      |    2 +-
 qemu-common.h      |    1 +
 30 files changed, 285 insertions(+), 126 deletions(-)
 create mode 100644 hw/isa-bridge.c

-- 
1.7.5.4