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Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is a
From: |
Daniel P . Berrangé |
Subject: |
Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available |
Date: |
Mon, 25 Jan 2021 16:47:46 +0000 |
User-agent: |
Mutt/1.14.6 (2020-07-11) |
On Mon, Jan 25, 2021 at 03:45:30PM +0100, Philippe Mathieu-Daudé wrote:
> Some new users get confused with 'TCG' and 'TCI', and enable TCI
> support expecting to enable TCG.
>
> Emit a warning when native TCG backend is available on the
> host architecture, mentioning this is a suboptimal configuration.
>
> Reviewed-by: Stefan Weil <sw@weilnetz.de>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
Nitpick, the text printed is completely rewritten from what they
reviewed, so I would probably have dropped their R-b for that
scenario.
> Suggested-by: Daniel Berrangé <berrange@redhat.com>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
> meson.build | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/meson.build b/meson.build
> index 16b2560e7e7..f675c54e636 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -228,6 +228,13 @@
> else
> error('Unsupported CPU @0@, try --enable-tcg-interpreter'.format(cpu))
> endif
> + elif get_option('tcg_interpreter')
> + warning('Use of the TCG interpretor is not recommended on this host')
> + warning('architecture. There is a native TCG execution backend
> available')
> + warning('which provides substantially better performance and
> reliability.')
> + warning('It is strongly recommended to remove the
> --enable-tcg-interpreter')
> + warning('configuration option on this architecture to use the native')
> + warning('backend.')
> endif
> if get_option('tcg_interpreter')
> tcg_arch = 'tci'
> --
> 2.26.2
>
Regards,
Daniel
--
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- [PATCH v4 1/4] configure: Fix --enable-tcg-interpreter, (continued)
- [PATCH v4 1/4] configure: Fix --enable-tcg-interpreter, Philippe Mathieu-Daudé, 2021/01/25
- [PATCH v4 2/4] configure: Improve TCI feature description, Philippe Mathieu-Daudé, 2021/01/25
- [PATCH v4 3/4] meson: Explicit TCG backend used, Philippe Mathieu-Daudé, 2021/01/25
- [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Philippe Mathieu-Daudé, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Daniel P . Berrangé, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available,
Daniel P . Berrangé <=
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Philippe Mathieu-Daudé, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Stefan Weil, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Richard Henderson, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Stefan Weil, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Richard Henderson, 2021/01/25
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Stefan Weil, 2021/01/26
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Alex Bennée, 2021/01/26
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Stefan Weil, 2021/01/26
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Paolo Bonzini, 2021/01/26
- Re: [PATCH v4 4/4] meson: Warn when TCI is selected but TCG backend is available, Stefan Weil, 2021/01/26