Re: [Qemu-devel] [QEMU-1.6 PATCH] vl.c: Output error on invalid machine type provided

[Marcel Apfelbaum <marcel.apfelbaum@gmail.com>]

On Mon, 2013-08-12 at 18:28 +0200, Michal Novotny wrote:
> Output error message using qemu's error_report() function when user
> provides the invalid machine type on the command line. This also saves
> time to find what issue is when you downgrade from one version of qemu
> to another that doesn't support required machine type yet (the version
> user downgraded to have to have this patch applied too, of course).
> 
> Signed-off-by: Michal Novotny <minovotn@redhat.com>
> ---
>  vl.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>

> diff --git a/vl.c b/vl.c
> index f422a1c..9b4a3f9 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -2671,6 +2671,11 @@ static QEMUMachine *machine_parse(const char *name)
>      if (machine) {
>          return machine;
>      }
> +
> +    if (name && !is_help_option(name)) {
> +        error_report("Unsupported machine type");
> +    }
> +
>      printf("Supported machines are:\n");
>      for (m = first_machine; m != NULL; m = m->next) {
>          if (m->alias) {