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Re: [libvirt] [PATCH] conf: Check CPU cache for ABI stability



On Tue, May 09, 2017 at 05:44:14PM +0200, Jiri Denemark wrote:
> Signed-off-by: Jiri Denemark <jdenemar redhat com>
> ---
>  src/conf/cpu_conf.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c
> index 1b098c476..194f03faf 100644
> --- a/src/conf/cpu_conf.c
> +++ b/src/conf/cpu_conf.c
> @@ -915,6 +915,16 @@ virCPUDefIsEqual(virCPUDefPtr src,
>          }
>      }
>  
> +    if ((src->cache && !dst->cache) ||
> +        (!src->cache && dst->cache) ||
> +        (src->cache && dst->cache &&
> +         (src->cache->level != dst->cache->level ||
> +          src->cache->mode != dst->cache->mode))) {
> +        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> +                       "Target CPU cache does not match source");
> +        goto cleanup;
> +    }
> +
>      identical = true;
>  
>   cleanup:

Reviewed-by: Daniel P. Berrange <berrange redhat com>

Regards,
Daniel
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