Re: [Xen-devel] [PATCH for-4.6] xl/libxl: disable PV vNUMA

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

El 30/07/15 a les 17.12, Wei Liu ha escrit:
> Update xl manual and disable PV vNUMA in libxl.
> 
> Signed-off-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
> ---
>  docs/man/xl.cfg.pod.5      | 4 ++++
>  tools/libxl/libxl_create.c | 9 +++++++++
>  2 files changed, 13 insertions(+)
> 
> diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5
> index c78c3ba..782106c 100644
> --- a/docs/man/xl.cfg.pod.5
> +++ b/docs/man/xl.cfg.pod.5
> @@ -261,6 +261,10 @@ Specify virtual NUMA configuration with positional 
> arguments. The
>  nth B<VNODE_SPEC> in the list specifies the configuration of nth
>  virtual node.
>  
> +Note that virtual NUMA for PV guest is not yet supported, because
> +there is issue with regard to cpuid handling that affects PV virtual
           ^ an   ^regarding
> +NUMA.
> +
>  Each B<VNODE_SPEC> is a list, which has a form of
>  "[VNODE_CONFIG_OPTION,VNODE_CONFIG_OPTION, ... ]"  (without quotes).
>  
> diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
> index 4f2f50b..4f4273d 100644
> --- a/tools/libxl/libxl_create.c
> +++ b/tools/libxl/libxl_create.c
> @@ -860,6 +860,15 @@ static void initiate_domain_create(libxl__egc *egc,
>          goto error_out;
>      }
>  
> +    /* PV vNUMA is not yet supported because there is issue with
> +     * regard to cpuid handling.

Same.

> +     */
> +    if (d_config->c_info.type == LIBXL_DOMAIN_TYPE_PV &&
> +        d_config->b_info.num_vnuma_nodes) {
> +        LOG(ERROR, "PV vNUMA not yet supported");
> +        goto error_out;
> +    }
> +
>      ret = libxl__domain_create_info_setdefault(gc, &d_config->c_info);
>      if (ret) {
>          LOG(ERROR, "Unable to set domain create info defaults");
> 


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