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Re: [Qemu-devel] [PATCH] vl: exit if a bad property value is passed to -
From: |
David Gibson |
Subject: |
Re: [Qemu-devel] [PATCH] vl: exit if a bad property value is passed to -global |
Date: |
Thu, 14 Jul 2016 11:42:40 +1000 |
User-agent: |
Mutt/1.6.1 (2016-04-27) |
On Wed, Jul 13, 2016 at 08:05:03PM +0200, Greg Kurz wrote:
> When passing '-global driver=host-powerpc64-cpu,property=compat,value=foo'
> on the command line, without this patch, we get the following warning per
> device (which means many lines if the guests has many cpus):
>
> qemu-system-ppc64: Warning: can't apply global host-powerpc64-cpu.compat=foo:
> Invalid compatibility mode "foo"
>
> ... and QEMU continues execution, ignoring the property.
>
> With this patch, we get a single line:
>
> qemu-system-ppc64: can't apply global host-powerpc64-cpu.compat=foo:
> Invalid compatibility mode "foo"
>
> ... and QEMU exits.
>
> Signed-off-by: Greg Kurz <address@hidden>
Reviewed-by: David Gibson <address@hidden>
Not really up to me to decide if this is the right approach for global
option handling, but it seems like the way to go to me.
> ---
> vl.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/vl.c b/vl.c
> index 356713ea075c..a7cc92781687 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -2922,6 +2922,7 @@ static int global_init_func(void *opaque, QemuOpts
> *opts, Error **errp)
> g->property = qemu_opt_get(opts, "property");
> g->value = qemu_opt_get(opts, "value");
> g->user_provided = true;
> + g->errp = errp;
> qdev_prop_register_global(g);
> return 0;
> }
> @@ -4451,7 +4452,7 @@ int main(int argc, char **argv, char **envp)
> machine_register_compat_props(current_machine);
>
> qemu_opts_foreach(qemu_find_opts("global"),
> - global_init_func, NULL, NULL);
> + global_init_func, NULL, &error_fatal);
>
> /* This checkpoint is required by replay to separate prior clock
> reading from the other reads, because timer polling functions query
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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