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[RFC,v4,00/19] single-binary: Make hw/arm/ common

Message ID 20250422145502.70770-1-philmd@linaro.org
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Series single-binary: Make hw/arm/ common | expand

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Philippe Mathieu-Daudé April 22, 2025, 2:54 p.m. UTC 
Since v3
- QAPI structure renamed as QemuTargetInfo
- MachineClass::get_valid_cpu_types() runtime
- target_aarch64() checking SysEmuTarget value
- Remove CONFIG_TCG #ifdef'ry in hw/arm/

Since v2:
- More comments from Pierrick addressed
- Use GList to register valid CPUs list
- Remove all TARGET_AARCH64 uses in hw/arm/

Since v1:
- Dropped unrelated / irrelevant patches
- Addressed Pierrick comments
- Added R-b tag
- Only considering machines, not CPUs.

Hi,

At this point this series is mostly a draft for Pierrick.

After introducing the generic TargetInfo API [*], we implement
the ARM variants, then use the API to remove target-specific code,
allowing to eventually remove the target-specific arm_ss[] source
set in meson.build, having all objects in arm_common_ss[].

Regards,

Phil.

Available here, based on tcg-next:
https://gitlab.com/philmd/qemu/-/tags/single-binary-hw-arm-rfc-v4

Philippe Mathieu-Daudé (19):
  qapi: Rename TargetInfo structure as QemuTargetInfo
  qemu: Convert target_name() to TargetInfo API
  system/vl: Filter machine list available for a particular target
    binary
  hw/arm: Register TYPE_TARGET_ARM/AARCH64_MACHINE QOM interfaces
  hw/core: Allow ARM/Aarch64 binaries to use the 'none' machine
  hw/arm: Filter machine types for qemu-system-arm/aarch64 binaries
  meson: Prepare to accept per-binary TargetInfo structure
    implementation
  config/target: Implement per-binary TargetInfo structure (ARM,
    AARCH64)
  hw/arm/aspeed: Build objects once
  hw/arm/raspi: Build objects once
  hw/core/machine: Allow dynamic registration of valid CPU types
  hw/arm/virt: Register valid CPU types dynamically
  hw/arm/virt: Check accelerator availability at runtime
  qemu/target_info: Add %target_arch field to TargetInfo
  qemu/target_info: Add target_aarch64() helper
  hw/arm/virt: Replace TARGET_AARCH64 -> target_aarch64()
  hw/core: Get default_cpu_type calling machine_class_default_cpu_type()
  hw/core: Introduce MachineClass::get_default_cpu_type() helper
  hw/arm/virt: Get default CPU type at runtime

 MAINTAINERS                       |   8 +++
 meson.build                       |  11 +++
 qapi/machine.json                 |  10 +--
 include/hw/arm/machines-qom.h     |  18 +++++
 include/hw/boards.h               |  10 +++
 include/hw/core/cpu.h             |   2 -
 include/qemu/target-info-impl.h   |  35 +++++++++
 include/qemu/target-info.h        |  34 +++++++++
 configs/targets/aarch64-softmmu.c |  23 ++++++
 configs/targets/arm-softmmu.c     |  23 ++++++
 cpu-target.c                      |   5 --
 hw/arm/aspeed.c                   | 115 ++++++++++++++++++++++++++++--
 hw/arm/b-l475e-iot01a.c           |   6 ++
 hw/arm/bananapi_m2u.c             |   6 ++
 hw/arm/bcm2836.c                  |   5 +-
 hw/arm/collie.c                   |   6 ++
 hw/arm/cubieboard.c               |   6 ++
 hw/arm/digic_boards.c             |   6 ++
 hw/arm/exynos4_boards.c           |  11 +++
 hw/arm/fby35.c                    |   6 ++
 hw/arm/highbank.c                 |  11 +++
 hw/arm/imx25_pdk.c                |   6 ++
 hw/arm/imx8mp-evk.c               |   5 ++
 hw/arm/integratorcp.c             |   6 ++
 hw/arm/kzm.c                      |   6 ++
 hw/arm/mcimx6ul-evk.c             |   6 ++
 hw/arm/mcimx7d-sabre.c            |   6 ++
 hw/arm/microbit.c                 |   6 ++
 hw/arm/mps2-tz.c                  |  21 ++++++
 hw/arm/mps2.c                     |  21 ++++++
 hw/arm/mps3r.c                    |   6 ++
 hw/arm/msf2-som.c                 |   6 ++
 hw/arm/musca.c                    |  11 +++
 hw/arm/musicpal.c                 |   6 ++
 hw/arm/netduino2.c                |   6 ++
 hw/arm/netduinoplus2.c            |   6 ++
 hw/arm/npcm7xx_boards.c           |  26 +++++++
 hw/arm/npcm8xx_boards.c           |   5 ++
 hw/arm/olimex-stm32-h405.c        |   6 ++
 hw/arm/omap_sx1.c                 |  11 +++
 hw/arm/orangepi.c                 |   6 ++
 hw/arm/raspi.c                    |  28 ++++++--
 hw/arm/raspi4b.c                  |   5 ++
 hw/arm/realview.c                 |  21 ++++++
 hw/arm/sabrelite.c                |   6 ++
 hw/arm/sbsa-ref.c                 |   5 ++
 hw/arm/stellaris.c                |  11 +++
 hw/arm/stm32vldiscovery.c         |   6 ++
 hw/arm/versatilepb.c              |  11 +++
 hw/arm/vexpress.c                 |  11 +++
 hw/arm/virt.c                     |  78 +++++++++++---------
 hw/arm/xilinx_zynq.c              |   6 ++
 hw/arm/xlnx-versal-virt.c         |   5 ++
 hw/arm/xlnx-zcu102.c              |   5 ++
 hw/core/machine-qmp-cmds.c        |  10 +--
 hw/core/machine.c                 |  37 ++++++++++
 hw/core/null-machine.c            |   6 ++
 plugins/loader.c                  |   2 +-
 system/vl.c                       |   7 +-
 target-info-qom.c                 |  24 +++++++
 target-info-stub.c                |  22 ++++++
 target-info.c                     |  26 +++++++
 target/ppc/cpu_init.c             |   2 +-
 configs/targets/meson.build       |   3 +
 hw/arm/meson.build                |  12 ++--
 65 files changed, 813 insertions(+), 71 deletions(-)
 create mode 100644 include/hw/arm/machines-qom.h
 create mode 100644 include/qemu/target-info-impl.h
 create mode 100644 include/qemu/target-info.h
 create mode 100644 configs/targets/aarch64-softmmu.c
 create mode 100644 configs/targets/arm-softmmu.c
 create mode 100644 target-info-qom.c
 create mode 100644 target-info-stub.c
 create mode 100644 target-info.c
 create mode 100644 configs/targets/meson.build