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From: "Pavel Dovgalyuk" <dovgaluk@ispras.ru>
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Date: Mon, 10 Sep 2018 14:41:24 +0300
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Subject: Re: [Qemu-devel] [RFC PATCH v2 2/7] Add plugin support
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To: =?utf-8?Q?'Alex_Benn=C3=A9e'?= <alex.bennee@linaro.org>, 'Pavel Dovgalyuk' <Pavel.Dovgaluk@ispras.ru>
Cc: qemu-devel@nongnu.org, peter.maydell@linaro.org, maria.klimushenkova@ispras.ru, pbonzini@redhat.com, vilanova@ac.upc.edu

> From: Alex Benn=C3=A9e [mailto:alex.bennee@linaro.org]
> Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> writes:
>=20
> > This patch adds support for dynamically loaded plugins.
> > Every plugin is a dynamic library with a set of optional exported
> > functions that will be called from QEMU.
> >
> <snip>
> > +
> > +static QLIST_HEAD(, QemuPluginInfo) qemu_plugins
> > +                                =3D =
QLIST_HEAD_INITIALIZER(qemu_plugins);
> > +
> > +static QemuOptsList qemu_plugin_opts =3D {
> > +    .name =3D "plugin",
> > +    .head =3D QTAILQ_HEAD_INITIALIZER(qemu_plugin_opts.head),
> > +    .desc =3D {
> > +        {
> > +            .name =3D "file",
> > +            .type =3D QEMU_OPT_STRING,
> > +        },{
> > +            .name =3D "args",
> > +            .type =3D QEMU_OPT_STRING,
> > +        },
> > +        { /* end of list */ }
> > +    },
> > +};
> > +
> > +void qemu_plugin_parse_cmd_args(const char *optarg)
> > +{
> > +    QemuOpts *opts =3D qemu_opts_parse_noisily(&qemu_plugin_opts, =
optarg, false);
> > +    qemu_plugin_load(qemu_opt_get(opts, "file"),
> > +        qemu_opt_get(opts, "args"));
> > +}
>=20
> Currently this is only available to system mode emulation. Can it be
> extended to include linux-user as well?

Why not? I'm not familiar with linux-user, so I'll need some time to =
try.

Pavel Dovgalyuk