Re: [Xen-devel] Possible cases for Hypercall "HYPERVISOR_event_channel_op(EVTCHNOP_send, &op)" failure

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

I don’t think it should ever fail like that. That hypercall is always required for PV drivers to work.

 -- Keir

On 19/12/2008 11:06, "Kumar, Venkat" <Venkat.Kumar@xxxxxxx> wrote:

What are the possible cases (I hope there are not manyJ) that this Hypercall might fail, HYPERVISOR_event_channel_op(EVTCHNOP_send, &op)???,With an error value of “–ENOSYS (-38)” on a “HVM”?
 

Thx,
Venkat

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