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vl: exit if a bad property value is passed to -global

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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.

The previous behavior is kept for hotplugged devices since we don't want
QEMU to exit when doing device_add.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Greg Kurz 2016-07-22 00:00:57 +02:00 committed by Eduardo Habkost
parent b3443f43f4
commit 03f28efbbb
1 changed files with 1 additions and 0 deletions
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vl.c
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@ -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 = &error_fatal;
qdev_prop_register_global(g);
return 0;
}