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[RFC,PATCH-for-10.1,00/19] qemu: Introduce TargetInfo API (for single binary)

Message ID 20250403234914.9154-1-philmd@linaro.org
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Series qemu: Introduce TargetInfo API (for single binary) | expand

Message

Philippe Mathieu-Daudé April 3, 2025, 11:48 p.m. UTC 
Hi,

At this point this series is mostly a draft for Pierrick.
It implement his idea of a per-binary structure containing
all target-specific information, exposing them via a
target-agnostic API. Commits are barely commented, since
I'd rather get feedback before pursuing further.

Available here, based on tcg-next:
https://gitlab.com/philmd/qemu/-/tags/single-binary-target-info-api-rfc-v1

Another series will follow with the ARM implementation.

Regards,

Phil.

Philippe Mathieu-Daudé (19):
  qemu: Introduce TargetInfo API in 'target_info.h'
  qemu: Convert target_name() to TargetInfo API
  qemu: Factor target_system_arch() out
  qemu: Convert target_words_bigendian() to TargetInfo API
  qemu: Introduce target_long_bits()
  target/tricore: Replace TARGET_LONG_BITS -> target_long_bits()
  target/hppa: Replace TARGET_LONG_BITS -> target_long_bits()
  target/riscv: Replace TARGET_LONG_BITS -> target_long_bits()
  qemu: Introduce target_cpu_type()
  cpus: Replace CPU_RESOLVING_TYPE -> target_cpu_type()
  accel/tcg: Replace CPU_RESOLVING_TYPE -> target_cpu_type()
  cpus: Move target-agnostic methods out of cpu-target.c
  accel: Replace CPU_RESOLVING_TYPE -> target_cpu_type()
  accel: Implement accel_init_ops_interfaces() for both system/user mode
  accel: Include missing 'qemu/accel.h' header in accel-internal.h
  accel: Make AccelCPUClass structure target-agnostic
  accel: Move target-agnostic code from accel-target.c -> accel-common.c
  qemu: Prepare per-binary QOM filter via TYPE_BINARY_PREFIX
  system/vl: Filter machine list for binary using
    machine_binary_filter()

 meson.build                                |  10 ++
 accel/{accel-system.h => accel-internal.h} |  10 +-
 include/accel/accel-cpu-target.h           |  12 +-
 include/accel/accel-cpu.h                  |  23 ++++
 include/exec/poison.h                      |   1 +
 include/exec/tswap.h                       |  13 +-
 include/hw/boards.h                        |   1 +
 include/hw/core/cpu.h                      |   2 -
 include/qemu/target_info-impl.h            |  38 ++++++
 include/qemu/target_info-qom.h             |  14 ++
 include/qemu/target_info.h                 |  39 ++++++
 accel/accel-common.c                       | 142 +++++++++++++++++++++
 accel/accel-system.c                       |   4 +-
 accel/accel-target.c                       | 134 -------------------
 accel/accel-user.c                         |   6 +
 accel/tcg/tcg-all.c                        |   4 +-
 cpu-target.c                               |  88 +------------
 hw/core/cpu-common.c                       |  74 +++++++++++
 hw/core/cpu-system.c                       |   2 +-
 hw/core/machine-qmp-cmds.c                 |   7 +-
 hw/display/vga.c                           |   2 +-
 hw/riscv/riscv-iommu.c                     |   3 +-
 hw/riscv/riscv_hart.c                      |   3 +-
 hw/virtio/virtio.c                         |   2 +-
 plugins/loader.c                           |   2 +-
 system/qtest.c                             |   1 +
 system/vl.c                                |  26 +++-
 target/hppa/mem_helper.c                   |   3 +-
 target/hppa/translate.c                    |   3 +-
 target/tricore/translate.c                 |   6 +-
 target_info-qom.c                          |  15 +++
 target_info-stub.c                         |  29 +++++
 target_info.c                              |  48 +++++++
 accel/meson.build                          |   1 +
 34 files changed, 499 insertions(+), 269 deletions(-)
 rename accel/{accel-system.h => accel-internal.h} (56%)
 create mode 100644 include/accel/accel-cpu.h
 create mode 100644 include/qemu/target_info-impl.h
 create mode 100644 include/qemu/target_info-qom.h
 create mode 100644 include/qemu/target_info.h
 create mode 100644 accel/accel-common.c
 create mode 100644 target_info-qom.c
 create mode 100644 target_info-stub.c
 create mode 100644 target_info.c