[Qemu-devel] [PATCH v3 00/14] qemu: generate acpi tables for the guest

[Michael S. Tsirkin]

This code can also be found here:
git://git.kernel.org/pub/scm/virt/kvm/mst/qemu.git acpi

Please review, and consider for 1.6.

Changes from v2 repost:
- address comment by Anthony - convert to use APIs implemented
  using QOM
- address comment by Anthony - avoid tricky pointer path,
  use GArray from glib instead
- Address lots of comments by Hu Tao and Laszlo Ersek
- rebase to latest bits

Changes from v2:
- added missing patches to make it actually build
Changes from v1 RFC:
- added code to address cross version compatibility
- rebased to latest bits
- updated seabios code to latest bits (added pvpanic device)

This patchset moves all generation of ACPI tables
from guest BIOS to the hypervisor.

Although ACPI tables come from a system BIOS on real hw,
it makes sense that the ACPI tables are coupled with the
virtual machine, since they have to abstract the x86 machine to
the OS's.

This is widely desired as a way to avoid the churn
and proliferation of QEMU-specific interfaces
associated with ACPI tables in bios code.

There's a bit of code duplication where we
already declare similar acpi structures in qemu.

I think it's best to do it in this order: port
code directly, and apply cleanups and reduce duplication
that results, on top.
This way it's much easier to see that we don't introduce
regressions.

In particular, I booted a guest on qemu with and without the
change, and verified that ACPI tables are
unchanged except for trivial pointer address changes.

Such binary compatibility makes it easier to be
confident that this change won't break things.

Michael S. Tsirkin (14):
  hw/i386/pc.c: move IO_APIC_DEFAULT_ADDRESS to include/hw/i386/apic.h
  i386: add ACPI table files from seabios
  acpi: add rules to compile ASL source
  acpi: pre-compiled ASL files
  loader: use file path size from fw_cfg.h
  i386: add bios linker/loader
  loader: support for unmapped ROM blobs
  loader: allow adding ROMs in done callbacks
  i386: define pc guest info
  ich9: APIs for pc guest info
  piix: APIs for pc guest info
  pvpanic: add API to access io port
  hpet: add API to find it
  i386: ACPI table generation code from seabios

 configure                            |    9 +-
 hw/acpi/ich9.c                       |    6 +
 hw/acpi/piix4.c                      |   29 +-
 hw/core/loader.c                     |   40 +-
 hw/i386/Makefile.objs                |   27 +
 hw/i386/acpi-build.c                 |  907 +++++
 hw/i386/acpi-defs.h                  |  327 ++
 hw/i386/acpi-dsdt-cpu-hotplug.dsl    |   93 +
 hw/i386/acpi-dsdt-dbug.dsl           |   41 +
 hw/i386/acpi-dsdt-hpet.dsl           |   51 +
 hw/i386/acpi-dsdt-isa.dsl            |  117 +
 hw/i386/acpi-dsdt-pci-crs.dsl        |  105 +
 hw/i386/acpi-dsdt.dsl                |  343 ++
 hw/i386/acpi-dsdt.hex.generated      | 4409 ++++++++++++++++++++
 hw/i386/bios-linker-loader.c         |  156 +
 hw/i386/pc.c                         |   37 +-
 hw/i386/pc_piix.c                    |    5 +
 hw/i386/pc_q35.c                     |    3 +
 hw/i386/q35-acpi-dsdt.dsl            |  452 +++
 hw/i386/q35-acpi-dsdt.hex.generated  | 7346 ++++++++++++++++++++++++++++++++++
 hw/i386/ssdt-misc.dsl                |  119 +
 hw/i386/ssdt-misc.hex.generated      |  190 +
 hw/i386/ssdt-pcihp.dsl               |   51 +
 hw/i386/ssdt-pcihp.hex.generated     |  108 +
 hw/i386/ssdt-proc.dsl                |   63 +
 hw/i386/ssdt-proc.hex.generated      |  134 +
 hw/isa/lpc_ich9.c                    |   19 +
 hw/lm32/lm32_hwsetup.h               |    2 +-
 hw/mips/mips_malta.c                 |    2 +-
 hw/misc/pvpanic.c                    |   11 +
 hw/pci-host/piix.c                   |    8 +
 hw/pci-host/q35.c                    |   10 +
 hw/timer/hpet.c                      |    5 +
 include/hw/acpi/ich9.h               |    2 +
 include/hw/i386/acpi-build.h         |    9 +
 include/hw/i386/apic.h               |    2 +
 include/hw/i386/bios-linker-loader.h |   26 +
 include/hw/i386/ich9.h               |    3 +
 include/hw/i386/pc.h                 |   34 +
 include/hw/loader.h                  |    5 +-
 include/hw/nvram/fw_cfg.h            |    4 +-
 include/hw/pci-host/q35.h            |    2 +
 include/hw/timer/hpet.h              |    2 +
 include/qemu/typedefs.h              |    2 +
 scripts/acpi_extract.py              |  362 ++
 scripts/acpi_extract_preprocess.py   |   51 +
 scripts/update-acpi.sh               |    4 +
 vl.c                                 |    3 +
 48 files changed, 15721 insertions(+), 15 deletions(-)
 create mode 100644 hw/i386/acpi-build.c
 create mode 100644 hw/i386/acpi-defs.h
 create mode 100644 hw/i386/acpi-dsdt-cpu-hotplug.dsl
 create mode 100644 hw/i386/acpi-dsdt-dbug.dsl
 create mode 100644 hw/i386/acpi-dsdt-hpet.dsl
 create mode 100644 hw/i386/acpi-dsdt-isa.dsl
 create mode 100644 hw/i386/acpi-dsdt-pci-crs.dsl
 create mode 100644 hw/i386/acpi-dsdt.dsl
 create mode 100644 hw/i386/acpi-dsdt.hex.generated
 create mode 100644 hw/i386/bios-linker-loader.c
 create mode 100644 hw/i386/q35-acpi-dsdt.dsl
 create mode 100644 hw/i386/q35-acpi-dsdt.hex.generated
 create mode 100644 hw/i386/ssdt-misc.dsl
 create mode 100644 hw/i386/ssdt-misc.hex.generated
 create mode 100644 hw/i386/ssdt-pcihp.dsl
 create mode 100644 hw/i386/ssdt-pcihp.hex.generated
 create mode 100644 hw/i386/ssdt-proc.dsl
 create mode 100644 hw/i386/ssdt-proc.hex.generated
 create mode 100644 include/hw/i386/acpi-build.h
 create mode 100644 include/hw/i386/bios-linker-loader.h
 create mode 100755 scripts/acpi_extract.py
 create mode 100755 scripts/acpi_extract_preprocess.py
 create mode 100644 scripts/update-acpi.sh

-- 
MST