[libvirt] [v2] qemu: Reject SDL graphic if it's not supported by qemu

[Daniel P. Berrange]

On Wed, Jan 12, 2011 at 06:06:04PM +0800, Osier Yang wrote:
> If the emulator doesn't support SDL graphic, we should reject
> the use of SDL graphic xml with error messages, but not ignore
> it silently, and pretend things are fine.
> 
> "-sdl" flag was exposed explicitly by qemu since 0.10.0, more detail:
> http://www.redhat.com/archives/libvir-list/2011-January/msg00442.html
> 
> And we already have capability flag "QEMUD_CMD_FLAG_0_10", which
> could be used to prevent the patch affecting the older versions
> of QEMU.
> 
> * src/qemu/qemu_command.c
> ---
>  src/qemu/qemu_command.c |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index a0075a4..55fe249 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -3568,6 +3568,14 @@ qemuBuildCommandLine(virConnectPtr conn,
>          }
>      } else if ((def->ngraphics == 1) &&
>                 def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SDL) {
> +        if ((qemuCmdFlags & QEMUD_CMD_FLAG_0_10) &&
> +            !(qemuCmdFlags & QEMUD_CMD_FLAG_SDL)) {
> +            qemuReportError(VIR_ERR_INTERNAL_ERROR,

Use  VIR_ERR_CONFIG_UNSUPPORTED here

> +                            _("sdl not supported by '%s'"),
> +                            def->emulator);
> +            goto error;
> +        }
> +


ACK, with that error code change made.

Daniel