[PATCH v3 00/22] microvm: add acpi support

[Gerd Hoffmann]

I know that not supporting ACPI in microvm is intentional.  If you still
don't want ACPI this is perfectly fine, you can use the usual -no-acpi
switch to toggle ACPI support.

These are the advantages you are going to loose then:

  (1) virtio-mmio device discovery without command line hacks (tweaking
      the command line is a problem when not using direct kernel boot).
  (2) Better IO-APIC support, we can use IRQ lines 16-23.
  (3) ACPI power button (aka powerdown request) works.
  (4) machine poweroff (aka S5 state) works.

Together with seabios patches for virtio-mmio support this allows to
boot standard fedora images (cloud, coreos, workstation live) with the
microvm machine type.

git branch for testing (including updated seabios):
        https://git.kraxel.org/cgit/qemu/log/?h=sirius/microvm

changes in v2:
  * some acpi cleanups are an separate patch series now.
  * switched to hw reduced acpi & generic event device.
  * misc fixes here and there.

changes in v3:
  * depeds on "[PATCH v6 00/16] acpi: i386 tweaks" series.
  * renamed qboot to qboot.bin
  * updated seabios to master branch snapshot.
    - this version boots fine with rtc=off
  * generic event device tweaks (Igor's comments).
  * make SMP work.
  * add RfC patches to turn off acpi by default for microvm.
  * misc fixes here and there.

cheers,
  Gerd

Gerd Hoffmann (22):
  microvm: name qboot binary qboot.bin
  [testing] seabios: update submodule to master snapshot
  [testing] seabios: update config & build rules
  [testing] seabios: update binaries to master snapshot
  acpi: make build_madt() more generic.
  acpi: create acpi-common.c and move madt code
  acpi: madt: skip pci override on pci-less systems.
  acpi: fadt: add hw-reduced sleep register support
  acpi: ged: rename event memory region
  acpi: ged: add control regs
  acpi: ged: add x86 device variant.
  acpi: move acpi_dsdt_add_power_button() to ged
  x86: coldplug cpus
  microvm: use 2G split unconditionally
  microvm: make virtio irq base runtime configurable
  microvm/acpi: add minimal acpi support
  microvm/acpi: add acpi_dsdt_add_virtio() for x86
  microvm/acpi: use GSI 16-23 for virtio
  microvm/acpi: use seabios with acpi=on
  microvm/acpi: disable virtio-mmio cmdline hack
  [RfC] acpi: add per machine type acpi default
  [RfC] acpi: flip default to off for microvm

 hw/i386/acpi-common.h                  |  15 ++
 hw/i386/acpi-microvm.h                 |   6 +
 include/hw/acpi/acpi-defs.h            |   2 +
 include/hw/acpi/generic_event_device.h |  14 +-
 include/hw/i386/microvm.h              |  11 +-
 include/hw/i386/x86.h                  |   1 +
 hw/acpi/aml-build.c                    |   4 +-
 hw/acpi/generic_event_device.c         |  68 ++++++-
 hw/arm/virt-acpi-build.c               |   8 -
 hw/i386/acpi-build.c                   | 126 +------------
 hw/i386/acpi-common.c                  | 156 +++++++++++++++++
 hw/i386/acpi-microvm.c                 | 234 +++++++++++++++++++++++++
 hw/i386/generic_event_device_x86.c     |  36 ++++
 hw/i386/microvm.c                      |  78 ++++++---
 hw/i386/x86.c                          |  32 +++-
 hw/i386/Kconfig                        |   1 +
 hw/i386/Makefile.objs                  |   3 +
 pc-bios/bios-256k.bin                  | Bin 262144 -> 262144 bytes
 pc-bios/bios-microvm.bin               | Bin 65536 -> 131072 bytes
 pc-bios/bios.bin                       | Bin 131072 -> 131072 bytes
 pc-bios/qboot.bin                      | Bin 0 -> 65536 bytes
 roms/Makefile                          |  11 +-
 roms/config.seabios-128k               |   3 +
 roms/config.seabios-microvm            |  26 +++
 roms/seabios                           |   2 +-
 25 files changed, 664 insertions(+), 173 deletions(-)
 create mode 100644 hw/i386/acpi-common.h
 create mode 100644 hw/i386/acpi-microvm.h
 create mode 100644 hw/i386/acpi-common.c
 create mode 100644 hw/i386/acpi-microvm.c
 create mode 100644 hw/i386/generic_event_device_x86.c
 create mode 100644 pc-bios/qboot.bin
 create mode 100644 roms/config.seabios-microvm

-- 
2.18.4