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From: Igor Mammedov <imammedo@redhat.com>
To: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: qemu-devel@nongnu.org, "Fam Zheng" <fam@euphon.net>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	kvm@vger.kernel.org,
	"Richard Henderson" <richard.henderson@linaro.org>,
	qemu-arm@nongnu.org, "Paolo Bonzini" <pbonzini@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Richard Henderson" <rth@twiddle.net>
Subject: Re: [PATCH v4 00/12] Support disabling TCG on ARM (part 2)
Date: Wed, 30 Sep 2020 09:58:41 +0200	[thread overview]
Message-ID: <20200930095841.3df7f8ee@redhat.com> (raw)
In-Reply-To: <20200929224355.1224017-1-philmd@redhat.com>

On Wed, 30 Sep 2020 00:43:43 +0200
Philippe Mathieu-Daudé <philmd@redhat.com> wrote:

> 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.

I don't recall exact reason but TCG variant is used by bios-tables-test
to test arm/virt so it will probably break that
(it has something to do with how KVM uses CPU/GIC, which was making
ACPI tables not stable (i.e. depend on host), so comparison with master
tables was failing)


> 
> 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
> 


WARNING: multiple messages have this Message-ID
From: Igor Mammedov <imammedo@redhat.com>
To: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: "Fam Zheng" <fam@euphon.net>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	kvm@vger.kernel.org,
	"Richard Henderson" <richard.henderson@linaro.org>,
	qemu-devel@nongnu.org, qemu-arm@nongnu.org,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Richard Henderson" <rth@twiddle.net>
Subject: Re: [PATCH v4 00/12] Support disabling TCG on ARM (part 2)
Date: Wed, 30 Sep 2020 09:58:41 +0200	[thread overview]
Message-ID: <20200930095841.3df7f8ee@redhat.com> (raw)
In-Reply-To: <20200929224355.1224017-1-philmd@redhat.com>

On Wed, 30 Sep 2020 00:43:43 +0200
Philippe Mathieu-Daudé <philmd@redhat.com> wrote:

> 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.

I don't recall exact reason but TCG variant is used by bios-tables-test
to test arm/virt so it will probably break that
(it has something to do with how KVM uses CPU/GIC, which was making
ACPI tables not stable (i.e. depend on host), so comparison with master
tables was failing)


> 
> 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
> 



  parent reply	other threads:[~2020-09-30  7:58 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-29 22:43 [PATCH v4 00/12] Support disabling TCG on ARM (part 2) Philippe Mathieu-Daudé
2020-09-29 22:43 ` Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 01/12] accel/tcg: Add stub for cpu_loop_exit() Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-30  7:08   ` Thomas Huth
2020-09-30  7:08     ` Thomas Huth
2020-10-03  9:09   ` Richard Henderson
2020-10-03  9:09     ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 02/12] meson: Allow optional target/${ARCH}/Kconfig Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-30 12:50   ` Claudio Fontana
2020-09-30 12:50     ` Claudio Fontana
2020-09-30 13:17     ` Paolo Bonzini
2020-09-30 13:17       ` Paolo Bonzini
2020-10-03  9:13   ` Richard Henderson
2020-10-03  9:13     ` Richard Henderson
2020-10-03  9:15     ` Paolo Bonzini
2020-10-03  9:15       ` Paolo Bonzini
2020-10-03  9:32       ` Richard Henderson
2020-10-03  9:32         ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 03/12] target/arm: Select SEMIHOSTING if TCG is available Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-10-03  9:43   ` Richard Henderson
2020-10-03  9:43     ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 04/12] target/arm: Restrict ARMv4 cpus to TCG accel Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-30  8:03   ` Philippe Mathieu-Daudé
2020-09-30  8:03     ` Philippe Mathieu-Daudé
2020-10-03  9:17     ` Thomas Huth
2020-10-03  9:17       ` Thomas Huth
2020-09-29 22:43 ` [PATCH v4 05/12] target/arm: Restrict ARMv5 " Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 06/12] target/arm: Restrict ARMv6 " Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 07/12] target/arm: Restrict ARMv7 R-profile " Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 08/12] target/arm: Restrict ARMv7 M-profile " Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 09/12] target/arm: Make m_helper.c optional via CONFIG_ARM_V7M Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-10-03  9:48   ` Richard Henderson
2020-10-03  9:48     ` Richard Henderson
2021-01-29 18:53     ` Philippe Mathieu-Daudé
2021-01-29 18:53       ` Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 10/12] target/arm: Do not build TCG objects when TCG is off Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-10-03  9:52   ` Richard Henderson
2020-10-03  9:52     ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 11/12] target/arm: Reorder meson.build rules Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-10-03  9:53   ` Richard Henderson
2020-10-03  9:53     ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 12/12] .travis.yml: Add a KVM-only Aarch64 job Philippe Mathieu-Daudé
2020-09-29 22:43   ` Philippe Mathieu-Daudé
2020-10-03 10:03   ` Richard Henderson
2020-10-03 10:03     ` Richard Henderson
2020-10-03 10:14     ` Thomas Huth
2020-10-03 10:14       ` Thomas Huth
2020-10-03 10:37       ` Richard Henderson
2020-10-03 10:37         ` Richard Henderson
2020-09-30  7:58 ` Igor Mammedov [this message]
2020-09-30  7:58   ` [PATCH v4 00/12] Support disabling TCG on ARM (part 2) Igor Mammedov
2020-09-30 10:20   ` Philippe Mathieu-Daudé
2020-09-30 10:20     ` Philippe Mathieu-Daudé
2021-01-28  0:41 ` Alex Bennée
2021-01-28  0:41   ` Alex Bennée
2021-01-28 11:02   ` Philippe Mathieu-Daudé
2021-01-28 11:02     ` Philippe Mathieu-Daudé
2021-01-28 15:42     ` Alex Bennée
2021-01-28 15:42       ` Alex Bennée

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