From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Igor Mammedov <imammedo@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 12:20:58 +0200 [thread overview]
Message-ID: <1dd2c094-284c-0e32-bae3-0c227e5399ab@redhat.com> (raw)
In-Reply-To: <20200930095841.3df7f8ee@redhat.com>
On 9/30/20 9:58 AM, Igor Mammedov wrote:
> 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)
Not a problem, we can restrict bios-tables-test to TCG.
I don't expect the KVM-only build being able to run many
of our current tests, as most of them expect TCG.
I'll have a look at restricting the TCG-dependent tests
after this series get accepted.
>
>>
>> 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/${ARCH}/Kconfig
>> target/arm: Select SEMIHOSTING if TCG is available
>> target/arm: Restrict ARMv4 cpus to TCG accel
>> target/arm: Restrict ARMv5 cpus to TCG accel
>> target/arm: Restrict ARMv6 cpus to TCG accel
>> target/arm: Restrict ARMv7 R-profile cpus to TCG accel
>> target/arm: Restrict ARMv7 M-profile cpus to TCG accel
>> target/arm: Reorder meson.build rules
>> .travis.yml: Add a KVM-only Aarch64 job
>>
>> Samuel Ortiz (1):
>> target/arm: Do not build TCG objects when TCG is off
>>
>> Thomas Huth (1):
>> target/arm: Make m_helper.c optional via CONFIG_ARM_V7M
>>
>> default-configs/arm-softmmu.mak | 3 --
>> meson.build | 8 +++-
>> target/arm/cpu.h | 12 ------
>> accel/stubs/tcg-stub.c | 5 +++
>> target/arm/cpu_tcg.c | 4 +-
>> target/arm/helper.c | 7 ----
>> target/arm/m_helper-stub.c | 73 +++++++++++++++++++++++++++++++++
>> .travis.yml | 35 ++++++++++++++++
>> hw/arm/Kconfig | 32 +++++++++++++++
>> target/arm/Kconfig | 4 ++
>> target/arm/meson.build | 40 +++++++++++-------
>> 11 files changed, 184 insertions(+), 39 deletions(-)
>> create mode 100644 target/arm/m_helper-stub.c
>> create mode 100644 target/arm/Kconfig
>>
>
next prev parent reply other threads:[~2020-09-30 10:21 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 22:43 [PATCH v4 00/12] Support disabling TCG on ARM (part 2) Philippe Mathieu-Daudé
2020-09-29 22:43 ` [PATCH v4 01/12] accel/tcg: Add stub for cpu_loop_exit() Philippe Mathieu-Daudé
2020-09-30 7:08 ` Thomas Huth
2020-10-03 9:09 ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 02/12] meson: Allow optional target/${ARCH}/Kconfig Philippe Mathieu-Daudé
2020-09-30 12:50 ` Claudio Fontana
2020-09-30 13:17 ` Paolo Bonzini
2020-10-03 9:13 ` Richard Henderson
2020-10-03 9:15 ` Paolo Bonzini
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
2020-10-03 9:43 ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 04/12] target/arm: Restrict ARMv4 cpus to TCG accel Philippe Mathieu-Daudé
2020-09-30 8:03 ` Philippe Mathieu-Daudé
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 ` [PATCH v4 06/12] target/arm: Restrict ARMv6 " 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 ` [PATCH v4 08/12] target/arm: Restrict ARMv7 M-profile " 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
2020-10-03 9:48 ` Richard Henderson
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
2020-10-03 9:52 ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 11/12] target/arm: Reorder meson.build rules Philippe Mathieu-Daudé
2020-10-03 9:53 ` Richard Henderson
2020-09-29 22:43 ` [PATCH v4 12/12] .travis.yml: Add a KVM-only Aarch64 job Philippe Mathieu-Daudé
2020-10-03 10:03 ` Richard Henderson
2020-10-03 10:14 ` Thomas Huth
2020-10-03 10:37 ` Richard Henderson
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 [this message]
2021-01-28 0:41 ` Alex Bennée
2021-01-28 11:02 ` Philippe Mathieu-Daudé
2021-01-28 15:42 ` Alex Bennée
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