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Re: [Xen-devel] [PATCH] libxl: Add none to vga parameter



On Fri, 15 Nov 2013, Fabio Fantoni wrote:
> Usage:
>   vga="none"
> 
> With upstream qemu it was impossible to disable emulated vga,
> even with -nographic qemu parameter setted with nographic xl
> paramter.
> 
> Note:
> Tested only with upstream qemu. With the qemu-trad. it probably
> needs also the addition of -nographic qemu parameter.
> Can someone test it with the traditional or should I do it?
> 
> Signed-off-by: Fabio Fantoni <fabio.fantoni@xxxxxxx>
> ---
>  docs/man/xl.cfg.pod.5       |    2 +-
>  tools/libxl/libxl_create.c  |    4 ++++
>  tools/libxl/libxl_dm.c      |    3 +++
>  tools/libxl/libxl_types.idl |    1 +
>  tools/libxl/xl_cmdimpl.c    |    2 ++
>  5 files changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/docs/man/xl.cfg.pod.5 b/docs/man/xl.cfg.pod.5
> index 3dedd61..402a414 100644
> --- a/docs/man/xl.cfg.pod.5
> +++ b/docs/man/xl.cfg.pod.5
> @@ -1050,7 +1050,7 @@ This option is deprecated, use vga="stdvga" instead.
>  
>  =item B<vga="STRING">
>  
> -Selects the emulated video card (stdvga|cirrus).
> +Selects the emulated video card (none|stdvga|cirrus).
>  The default is cirrus.
>  
>  =item B<vnc=BOOLEAN>
> diff --git a/tools/libxl/libxl_create.c b/tools/libxl/libxl_create.c
> index 2bb33e9..a9735d0 100644
> --- a/tools/libxl/libxl_create.c
> +++ b/tools/libxl/libxl_create.c
> @@ -222,6 +222,8 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc,
>          switch (b_info->device_model_version) {
>          case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN_TRADITIONAL:
>              switch (b_info->u.hvm.vga.kind) {
> +            case LIBXL_VGA_INTERFACE_TYPE_NONE:
> +                break;
>              case LIBXL_VGA_INTERFACE_TYPE_STD:
>                  if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT)
>                      b_info->video_memkb = 8 * 1024;
> @@ -242,6 +244,8 @@ int libxl__domain_build_info_setdefault(libxl__gc *gc,
>          case LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN:
>          default:
>              switch (b_info->u.hvm.vga.kind) {
> +            case LIBXL_VGA_INTERFACE_TYPE_NONE:
> +                break;
>              case LIBXL_VGA_INTERFACE_TYPE_STD:
>                  if (b_info->video_memkb == LIBXL_MEMKB_DEFAULT)
>                      b_info->video_memkb = 16 * 1024;
> diff --git a/tools/libxl/libxl_dm.c b/tools/libxl/libxl_dm.c
> index 7be0a50..086e602 100644
> --- a/tools/libxl/libxl_dm.c
> +++ b/tools/libxl/libxl_dm.c
> @@ -199,6 +199,7 @@ static char ** 
> libxl__build_device_model_args_old(libxl__gc *gc,
>              flexarray_append(dm_args, "-std-vga");
>              break;
>          case LIBXL_VGA_INTERFACE_TYPE_CIRRUS:
> +        case LIBXL_VGA_INTERFACE_TYPE_NONE:
>              break;
>          }
>  
> @@ -498,6 +499,8 @@ static char ** 
> libxl__build_device_model_args_new(libxl__gc *gc,
>                  GCSPRINTF("vga.vram_size_mb=%d",
>                  libxl__sizekb_to_mb(b_info->video_memkb)));
>              break;
> +        case LIBXL_VGA_INTERFACE_TYPE_NONE:
> +            break;
>          }

Shouldn't we be passing -vga none to QEMU instead of nothing at all?

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