Re: [Xen-devel] [PATCH 1/2] evtchn/fifo: initialize priority when events are bound

[Keir Fraser <keir.xen@xxxxxxxxx>]

On 10/12/2013 13:56, "David Vrabel" <david.vrabel@xxxxxxxxxx> wrote:

> From: David Vrabel <david.vrabel@xxxxxxxxxx>
> 
> Event channel ports that are reused or that were not in the initial
> bucket would have a non-default priority.
> 
> Add an init evtchn_port_op hook and use this to set the priority when
> an event channel is bound.
> 
> Within this new evtchn_fifo_init() call, also check if the event is
> already on a queue and print a warning, as this event may have its
> first event delivered on a queue with the wrong VCPU or priority.
> This guest is expected to prevent this (if it cares) by not unbinding
> events that are still linked.
> 
> Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>

Acked-by: Keir Fraser <keir@xxxxxxx>



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