Merge remote-tracking branch 'remotes/philmd-gitlab/tags/mips-next-20191105' into...

Merge remote-tracking branch 'remotes/philmd-gitlab/tags/mips-next-20191105' into staging

The i440FX northbridge is only used by the PC machine, while the
PIIX southbridge is also used by the Malta MIPS machine.

Split the PIIX3 southbridge from i440FX northbridge.

# gpg: Signature made Tue 05 Nov 2019 22:48:12 GMT
# gpg:                using RSA key 89C1E78F601EE86C867495CBA2A3FD6EDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (Phil) <philmd@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 89C1 E78F 601E E86C 8674  95CB A2A3 FD6E DEAD C0DE

* remotes/philmd-gitlab/tags/mips-next-20191105: (21 commits)
  hw/pci-host/i440fx: Remove the last PIIX3 traces
  hw/pci-host: Rename incorrectly named 'piix' as 'i440fx'
  hw/pci-host/piix: Extract PIIX3 functions to hw/isa/piix3.c
  hw/pci-host/piix: Fix code style issues
  hw/pci-host/piix: Move i440FX declarations to hw/pci-host/i440fx.h
  hw/pci-host/piix: Define and use the PIIX IRQ Route Control Registers
  hw/pci-host/piix: Move RCR_IOPORT register definition
  hw/pci-host/piix: Extract piix3_create()
  hw/i386: Remove obsolete LoadStateHandler::load_state_old handlers
  hw/isa/piix4: Move piix4_create() to hw/isa/piix4.c
  hw/mips/mips_malta: Extract the PIIX4 creation code as piix4_create()
  hw/mips/mips_malta: Create IDE hard drive array dynamically
  piix4: Add a MC146818 RTC Controller as specified in datasheet
  piix4: Add an i8254 PIT Controller as specified in datasheet
  piix4: Add an i8257 DMA Controller as specified in datasheet
  piix4: Rename PIIX4 object to piix4-isa
  Revert "irq: introduce qemu_irq_proxy()"
  piix4: Add an i8259 Interrupt Controller as specified in datasheet
  piix4: Add the Reset Control Register
  MAINTAINERS: Keep PIIX4 South Bridge separate from PC Chipsets
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>