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.
take care,
Gerd
Gerd Hoffmann (21):
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 plug from pc to x86
microvm: wire up hotplug
tests/acpi: clear bios-tables-test-allowed-diff.h
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 | 12 +
include/hw/i386/microvm.h | 10 +-
include/hw/i386/pc.h | 1 -
include/hw/i386/x86.h | 11 +-
tests/qtest/bios-tables-test-allowed-diff.h | 18 --
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 | 234 ++++++++++++++++++
hw/i386/generic_event_device_x86.c | 36 +++
hw/i386/microvm.c | 105 +++++++-
hw/i386/pc.c | 260 ++------------------
hw/i386/pc_piix.c | 2 +-
hw/i386/pc_q35.c | 2 +-
hw/i386/x86.c | 226 ++++++++++++++++-
tests/qtest/bios-tables-test.c | 21 +-
hw/i386/Kconfig | 1 +
hw/i386/Makefile.objs | 2 +
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
26 files changed, 761 insertions(+), 287 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
--
2.18.4
