[PATCH v6 00/11] Support disabling TCG on ARM (part 2)

[Philippe Mathieu-Daudé]

Cover from Samuel Ortiz from (part 1) [1]:

  This patchset allows for building and running ARM targets with TCG
  disabled. [...]

  The rationale behind this work comes from the NEMU project where
  we're trying to only support x86 and ARM 64-bit architectures,
  without including the TCG code base. We can only do so if we can
  build and run ARM binaries with TCG disabled.

Peter mentioned in v5 [6] that since 32-bit host has been removed,
we have to remove v7 targets. This is not done in this series, as
linking succeeds, and there is enough material to review (no need
to spend time on that extra patch if the current approach is not
accepted).

CI: https://gitlab.com/philmd/qemu/-/pipelines/249272441

v6:
- rebased on "target/arm/Kconfig" series
- introduce/use tcg_builtin() for realview machines

v5:
- addressed Paolo/Richard/Thomas review comments from v4 [5].

v4 almost 2 years later... [2]:
- Rebased on Meson
- Addressed Richard review comments
- Addressed Claudio review comments

v3 almost 18 months later [3]:
- Rebased
- Addressed Thomas review comments
- Added Travis-CI job to keep building --disable-tcg on ARM

v2 [4]:
- Addressed review comments from Richard and Thomas from v1 [1]

Regards,

Phil.

[1]: https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg02451.html
[2]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg689168.html
[3]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg641796.html
[4]: https://lists.gnu.org/archive/html/qemu-devel/2019-08/msg05003.html
[5]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg746041.html
[6]: https://www.mail-archive.com/qemu-devel@nongnu.org/msg777669.html

Based-on: <20210131111316.232778-1-f4bug@amsat.org>
          "target: Provide target-specific Kconfig"

Philippe Mathieu-Daudé (9):
  sysemu/tcg: Introduce tcg_builtin() helper
  exec: Restrict TCG specific headers
  target/arm: Restrict ARMv4 cpus to TCG accel
  target/arm: Restrict ARMv5 cpus to TCG accel
  target/arm: Restrict ARMv6 cpus to TCG accel
  target/arm: Restrict ARMv7 R-profile cpus to TCG accel
  target/arm: Restrict ARMv7 M-profile cpus to TCG accel
  target/arm: Reorder meson.build rules
  .travis.yml: Add a KVM-only Aarch64 job

Samuel Ortiz (1):
  target/arm: Do not build TCG objects when TCG is off

Thomas Huth (1):
  target/arm: Make m_helper.c optional via CONFIG_ARM_V7M

 default-configs/devices/aarch64-softmmu.mak |  1 -
 default-configs/devices/arm-softmmu.mak     | 27 --------
 include/exec/helper-proto.h                 |  2 +
 include/sysemu/tcg.h                        |  2 +
 target/arm/cpu.h                            | 12 ----
 hw/arm/realview.c                           |  7 +-
 target/arm/cpu_tcg.c                        |  4 +-
 target/arm/helper.c                         |  7 --
 target/arm/m_helper-stub.c                  | 73 +++++++++++++++++++++
 tests/qtest/cdrom-test.c                    |  6 +-
 .travis.yml                                 | 32 +++++++++
 hw/arm/Kconfig                              | 38 +++++++++++
 target/arm/Kconfig                          | 17 +++++
 target/arm/meson.build                      | 28 +++++---
 14 files changed, 196 insertions(+), 60 deletions(-)
 create mode 100644 target/arm/m_helper-stub.c

-- 
2.26.2