Re: [PATCH v2 1/2] xen/sched: core: skip missing vcpu slots in sched_move_domain()

On 19.08.2026 07:15, Furkan Caliskan wrote:
> --- a/xen/common/sched/core.c
> +++ b/xen/common/sched/core.c
> @@ -745,6 +745,38 @@ int sched_move_domain(struct domain *d, struct cpupool *c)
>  
>      for ( unit_idx = 0; unit_idx < n_units; unit_idx++ )
>      {
> +        /*
> +         * A vcpu slot can be missing if creation failed partway
> +         * through. A dying domain is being torn down regardless, so
> +         * skip the unit -- but a domain that isn't dying still needs
> +         * every vcpu it has schedulable, so fail instead of silently
> +         * dropping some of them.
> +         */
> +        bool vcpu_failed = false;
> +
> +        for ( unsigned int i = 0;
> +              i < gran && unit_idx * gran + i < d->max_vcpus; i++ )
> +        {
> +            if ( !d->vcpu[unit_idx * gran + i] )

Is there a particular reason domain_vcpu() cannot be used here?

Jan