[PATCH v6 00/20] 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.

changes in v4:
  * rebase to latest master
    - this also depends on the pending seabios update
  * drop some patches which got cherry-picked.
  * wire up cpu hotplug (also does coldplug cpu init).
  * add microvm acpi test case.
  * dropped RfC patches to turn off acpi by default for microvm.
  * misc fixes here and there.

changes in v5:
  * rebase to latest master (seabios dependency is merged meanwhile)
  * fix DSDT version (mst).
  * add comments referencing the ACPI spec for easier review (mst).

changes in v6:
  * rebase to latest master, adapt to meson build system.
  * pick up some review tags.
  * misc fixes here and there.

take care,
  Gerd

Gerd Hoffmann (20):
  microvm: name qboot binary qboot.rom
  seabios: add microvm config, update build rules
  seabios: add bios-microvm.bin binary
  acpi: ged: add control regs
  acpi: ged: add x86 device variant.
  acpi: move acpi_dsdt_add_power_button() to ged
  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
  x86: constify x86_machine_is_*_enabled
  x86: move acpi_dev from pc/microvm
  x86: move cpu hotplug from pc to x86
  microvm: wire up hotplug
  tests/acpi: allow microvm test data updates.
  tests/acpi: allow override blkdev
  tests/acpi: add microvm test
  tests/acpi: update expected data files for microvm

 hw/i386/acpi-microvm.h                 |   8 +
 include/hw/acpi/generic_event_device.h |  17 ++
 include/hw/i386/microvm.h              |  10 +-
 include/hw/i386/pc.h                   |   1 -
 include/hw/i386/x86.h                  |  15 +-
 hw/acpi/generic_event_device.c         |  52 +++++
 hw/arm/virt-acpi-build.c               |   8 -
 hw/i386/acpi-build.c                   |   2 +-
 hw/i386/acpi-microvm.c                 | 240 ++++++++++++++++++++
 hw/i386/generic_event_device_x86.c     |  36 +++
 hw/i386/microvm.c                      | 105 ++++++++-
 hw/i386/pc.c                           | 299 ++-----------------------
 hw/i386/pc_piix.c                      |   2 +-
 hw/i386/pc_q35.c                       |   2 +-
 hw/i386/x86.c                          | 272 +++++++++++++++++++++-
 tests/qtest/bios-tables-test.c         |  21 +-
 hw/i386/Kconfig                        |   1 +
 hw/i386/meson.build                    |   3 +-
 pc-bios/bios-microvm.bin               | Bin 65536 -> 131072 bytes
 pc-bios/qboot.rom                      | Bin 0 -> 65536 bytes
 roms/Makefile                          |  11 +-
 roms/config.seabios-microvm            |  26 +++
 tests/data/acpi/microvm/APIC           | Bin 0 -> 70 bytes
 tests/data/acpi/microvm/DSDT           | Bin 0 -> 365 bytes
 tests/data/acpi/microvm/FACP           | Bin 0 -> 268 bytes
 25 files changed, 816 insertions(+), 315 deletions(-)
 create mode 100644 hw/i386/acpi-microvm.h
 create mode 100644 hw/i386/acpi-microvm.c
 create mode 100644 hw/i386/generic_event_device_x86.c
 create mode 100644 pc-bios/qboot.rom
 create mode 100644 roms/config.seabios-microvm
 create mode 100644 tests/data/acpi/microvm/APIC
 create mode 100644 tests/data/acpi/microvm/DSDT
 create mode 100644 tests/data/acpi/microvm/FACP

-- 
2.27.0