Re: [PATCH] vhost-vdpa: Expose ASID group change after DRIVER_OK via backend feature

[Dragos Tatulea]

On Mon, May 11, 2026 at 12:45:03PM +0300, Dragos Tatulea wrote:
> The commit in the fixes tag blocked VHOST_VDPA_SET_GROUP_ASID operations
> once DRIVER_OK is set. That is too strict for devices which can safely
> handle this during live migration flows.
> 
> Bring back this behavior under a new vhost backend feature flag. The
> feature is supported by mlx5 and vdpa_sim devices.
> 
> Fixes: 3543b04a4ea3 ("vhost: forbid change vq groups ASID if DRIVER_OK is set")
> Signed-off-by: Dragos Tatulea <dtatulea@xxxxxxxxxx>
> Reviewed-by: Shahar Shitrit <shshitrit@xxxxxxxxxx>
> ---
Gentle ping.

Thanks,
Dragos