[libvirt] [PATCH 4/5] qemu: command: unconditionally allow accel3d='no'

[Michal Privoznik]

On 08.05.2016 19:49, Cole Robinson wrote:
> This matches how we handle spice gl='no' even if spice GL isn't
> supported. Not too interesting in practice but I figure we should
> be consistent
> ---
>  src/qemu/qemu_command.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index 2966b07..c26715f 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -4125,7 +4125,7 @@ qemuBuildDeviceVideoStr(const virDomainDef *def,
>      virBufferAsprintf(&buf, "%s,id=%s", model, video->info.alias);
>  
>      if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO) {
> -        if (video->accel && video->accel->accel3d) {
> +        if (video->accel && video->accel->accel3d == VIR_TRISTATE_SWITCH_ON) {
>              if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU_VIRGL)) {
>                  virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
>                                 "%s", _("virtio-gpu 3d acceleration is not supported"));
> 

In fact, this is important in practice. Because if in accel3d had been
'no' we would ignore it and execute the if() statement body. Both
VIR_TRISTATE_SWITCH_ON and _OFF have non zero values.

ACK

Michal