[PATCH v4 00/12] Support disabling TCG on ARM (part 2) - Philippe Mathieu-Daudé

From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Thomas Huth" <thuth@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Fam Zheng" <fam@euphon.net>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	kvm@vger.kernel.org, "Alex Bennée" <alex.bennee@linaro.org>,
	qemu-arm@nongnu.org, "Richard Henderson" <rth@twiddle.net>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: [PATCH v4 00/12] Support disabling TCG on ARM (part 2)
Date: Wed, 30 Sep 2020 00:43:43 +0200	[thread overview]
Message-ID: <20200929224355.1224017-1-philmd@redhat.com> (raw)

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.

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

Green CI:
- https://cirrus-ci.com/build/4572961761918976
- https://gitlab.com/philmd/qemu/-/pipelines/196047779
- https://travis-ci.org/github/philmd/qemu/builds/731370972

Based-on: <20200929125609.1088330-1-philmd@redhat.com>
"hw/arm: Restrict APEI tables generation to the 'virt' machine"
https://www.mail-archive.com/qemu-devel@nongnu.org/msg745792.html

Philippe Mathieu-Daudé (10):
  accel/tcg: Add stub for cpu_loop_exit()
  meson: Allow optional target/${ARCH}/Kconfig
  target/arm: Select SEMIHOSTING if TCG is available
  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/arm-softmmu.mak |  3 --
 meson.build                     |  8 +++-
 target/arm/cpu.h                | 12 ------
 accel/stubs/tcg-stub.c          |  5 +++
 target/arm/cpu_tcg.c            |  4 +-
 target/arm/helper.c             |  7 ----
 target/arm/m_helper-stub.c      | 73 +++++++++++++++++++++++++++++++++
 .travis.yml                     | 35 ++++++++++++++++
 hw/arm/Kconfig                  | 32 +++++++++++++++
 target/arm/Kconfig              |  4 ++
 target/arm/meson.build          | 40 +++++++++++-------
 11 files changed, 184 insertions(+), 39 deletions(-)
 create mode 100644 target/arm/m_helper-stub.c
 create mode 100644 target/arm/Kconfig

-- 
2.26.2