On 2016年03月23日 02:18, Julien Grall wrote:
>
>> + * Dom0 configures the interrupt, set the interrupt type and
>> route it to
>> + * Dom0.
>> + */
>> + for( i = NR_LOCAL_IRQS; i < vgic_num_irqs(d); i++ )
>> + {
>> + desc = irq_to_desc(i);
>> + if( desc->action != NULL)
>
> Well some of the SPIs used by Xen may not be registered yet. For
> instance the SMMU driver doesn't register any SPIs until it's necessary
> (i.e a device is assigned to a domain).
But when SMMU requests some SPI, it will delete the route and
reconfigure the SPI, right?
Thanks,
--
Shannon
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