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Re: [RFC PATCH] tests/avocado: probe for multi-process support before ru
From: |
Alex Bennée |
Subject: |
Re: [RFC PATCH] tests/avocado: probe for multi-process support before running test |
Date: |
Tue, 21 Mar 2023 18:19:06 +0000 |
User-agent: |
mu4e 1.9.22; emacs 29.0.60 |
Philippe Mathieu-Daudé <philmd@linaro.org> writes:
> On 21/3/23 12:17, Alex Bennée wrote:
>> A recent attempt to let avocado run more tests on the CentOS stream
>> build failed because there was no gating on the multiprocess feature.
>> Like missing accelerators avocado should gracefully skip when the
>> feature is not enabled.
>> In this case we use the existence of the proxy device as a proxy for
>> multi-process support.
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>> Cc: Elena Ufimtseva <elena.ufimtseva@oracle.com>
>> Cc: Jagannathan Raman <jag.raman@oracle.com>
>> Cc: John G Johnson <john.g.johnson@oracle.com>
>> ---
>> tests/avocado/avocado_qemu/__init__.py | 10 ++++++++++
>> tests/avocado/multiprocess.py | 1 +
>> 2 files changed, 11 insertions(+)
>
>
>> + """
>> + Test for the presence of the x-pci-proxy-dev which is required
>> + to support multiprocess.
>> + """
>> + devhelp = run_cmd([self.qemu_bin,
>> + '-M', 'none', '-device', 'help'])[0];
>> + if devhelp.find('x-pci-proxy-dev') < 0:
>> + self.cancel('no support for multiprocess device emulation')
>
> FYI a more generic alternative to this method:
> https://lore.kernel.org/qemu-devel/20200129212345.20547-14-philmd@redhat.com/
>
> But yours just works :)
For now I want to keep it simple. We should replace it with yours once
we get a chance. Are you happy for a r-b?
--
Alex Bennée
Virtualisation Tech Lead @ Linaro