Re: [Xen-devel] [RFC PATCH V3 21/22] Only allow extended event channel on Dom0 and driver domains

[David Vrabel <david.vrabel@xxxxxxxxxx>]

On 27/02/13 14:34, Wei Liu wrote:
> For non-Dom0 domains, add a flag to indicate whether it can use extended event
> channel, admins can specify this flag when creating a driver domain.
> 
> The rationale behide this option is, a) extended event channel will
> consume global mapping space in Xen, b) likely that only Dom0 and driver
> domains need this.

I would prefer the toolstack to limit the max port that the guest can
use (see the EVTCHNOP_set_limit sub-op I proposed), than this single bit
(which isn't useful for the FIFO-based proposal).

David

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