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
