[RFC PATCH 0/5] hw/i386/q35: Decouple virtual SMI# lines and wire them to ICH9 chipset

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Hi,

This is an experimental series to reduce calls to the
cpu_interrupt() API from generic HW/. I'm trying to use
the ICH9 chipset from a non-x86 machine. Without this
experiment, we can not because cpu_interrupt() is target
specific. Here the interrupt is decoupled using the QDev
GPIO API. Even if the SMI# line is left unconnected, the
device is still usable by a guest.

Based-on: <20240226111416.39217-1-philmd@linaro.org>

Philippe Mathieu-Daudé (5):
  target/i386/cpu: Expose SMI# IRQ line via QDev
  hw/i386/piix: Set CPU SMI# interrupt using QDev GPIO API
  hw/ahci/ich9_tco: Set CPU SMI# interrupt using QDev GPIO API
  hw/i386/q35: Wire virtual SMI# lines to ICH9 chipset
  hw/isa: Build ich9_lpc.c once

 include/hw/acpi/ich9.h        |  1 +
 include/hw/acpi/ich9_tco.h    |  4 ++--
 include/hw/i386/pc.h          |  2 --
 include/hw/isa/ich9_lpc.h     | 12 ++++++++++++
 include/hw/southbridge/ich9.h |  1 +
 target/i386/cpu-internal.h    |  1 +
 hw/acpi/ich9.c                |  3 ++-
 hw/acpi/ich9_tco.c            | 13 ++++++++++---
 hw/i386/pc.c                  |  9 ---------
 hw/i386/pc_piix.c             |  4 ++--
 hw/i386/pc_q35.c              | 26 ++++++++++++++++++++++++++
 hw/isa/ich9_lpc.c             | 15 ++++-----------
 hw/southbridge/ich9.c         |  1 +
 target/i386/cpu-sysemu.c      | 11 +++++++++++
 target/i386/cpu.c             |  2 ++
 hw/isa/meson.build            |  3 +--
 16 files changed, 76 insertions(+), 32 deletions(-)

-- 
2.41.0