Re: [Qemu-devel] [PATCH] target-i386: Reject invalid CPU feature names on the command-line

[Igor Mammedov <imammedo@redhat.com>]

On Thu, 21 Aug 2014 17:22:56 -0300
Eduardo Habkost <ehabkost@redhat.com> wrote:

> Instead of simply printing a warning, report an error when invalid CPU
> options are provided on the CPU model string.
> 
> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

Reviewed-By: Igor Mammedov <imammedo@redhat.com>

> ---
>  target-i386/cpu.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/target-i386/cpu.c b/target-i386/cpu.c
> index 217500c..c27b24a 100644
> --- a/target-i386/cpu.c
> +++ b/target-i386/cpu.c
> @@ -592,7 +592,8 @@ static bool lookup_feature(uint32_t *pval, const char *s, const char *e,
>  }
>  
>  static void add_flagname_to_bitmaps(const char *flagname,
> -                                    FeatureWordArray words)
> +                                    FeatureWordArray words,
> +                                    Error **errp)
>  {
>      FeatureWord w;
>      for (w = 0; w < FEATURE_WORDS; w++) {
> @@ -603,7 +604,7 @@ static void add_flagname_to_bitmaps(const char *flagname,
>          }
>      }
>      if (w == FEATURE_WORDS) {
> -        fprintf(stderr, "CPU feature %s not found\n", flagname);
> +        error_setg(errp, "CPU feature %s not found", flagname);
>      }
>  }
>  
> @@ -1761,9 +1762,9 @@ static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
>      while (featurestr) {
>          char *val;
>          if (featurestr[0] == '+') {
> -            add_flagname_to_bitmaps(featurestr + 1, plus_features);
> +            add_flagname_to_bitmaps(featurestr + 1, plus_features, &local_err);
>          } else if (featurestr[0] == '-') {
> -            add_flagname_to_bitmaps(featurestr + 1, minus_features);
> +            add_flagname_to_bitmaps(featurestr + 1, minus_features, &local_err);
>          } else if ((val = strchr(featurestr, '='))) {
>              *val = 0; val++;
>              feat2prop(featurestr);