Re: [Xen-devel] [PATCH 3/4] libxl: only allow guests with a device model to use cd-{eject/insert}

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Thu, Apr 07, 2016 at 07:45:28PM +0200, Roger Pau Monne wrote:
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> Cc: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
> Cc: Wei Liu <wei.liu2@xxxxxxxxxx>
> ---
>  tools/libxl/libxl.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/tools/libxl/libxl.c b/tools/libxl/libxl.c
> index 9d785a4..232e2c1 100644
> --- a/tools/libxl/libxl.c
> +++ b/tools/libxl/libxl.c
> @@ -2909,6 +2909,12 @@ int libxl_cdrom_insert(libxl_ctx *ctx, uint32_t domid, 
> libxl_device_disk *disk,
>          goto out;
>      }
>  
> +    if (dm_ver == LIBXL_DEVICE_MODEL_VERSION_NONE) {
> +        LOG(ERROR, "HVM guests without a device model cannot use cd-insert");

It's not specific to HVM, right?

Wei.

> +        rc = ERROR_FAIL;
> +        goto out;
> +    }
> +
>      disks = libxl_device_disk_list(ctx, domid, &num);
>      for (i = 0; i < num; i++) {
>          if (disks[i].is_cdrom && !strcmp(disk->vdev, disks[i].vdev))
> -- 
> 2.6.4 (Apple Git-63)
> 

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