Re: [Xen-devel] Sched_op hypercall small questions

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 20.09.11 at 14:35, Daniel Castro <evil.dani@xxxxxxxxx> wrote:
> On Tue, Sep 20, 2011 at 8:57 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>>>>> On 20.09.11 at 12:55, Daniel Castro <evil.dani@xxxxxxxxx> wrote:
>>> What I am trying is writing to the xenstore ring, issue the send
>>> hypercall, then wait (poll hypercall) for event, then read answer from
>>> ring.
>>
>> That reads as if you do all this from the same thread in the same domain.
>> Which might be your problem, particularly if additionally you use the
>> same event channel for signaling production and consumption.
> 
> Yes you are correct, I have all in the same thread. But I have no
> other choice, since this is run inside hvmloader when the BIOS is
> being deployed.

What do you need the synchronization/signaling/polling for then?

Jan


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