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xen-devel
Re: [Xen-devel] To use xcs or not?
Anthony Liguori wrote:
Jacob Gorm Hansen wrote:
Hmm from looking at the code in drivers/xen/evtchn/evtchn.c, it seems
if I write to this device, I can unmask local event channels, but
there is no notion of a target domain.
Port's come in pairs. 117 is the remote port number. Typically, in
dom0 you would allocate the port pair (0, 117). The 0 tells xc to
allocate an unused local port that's connected to the remote port.
Local ports are always unique so there's no need to be domain specific.
I see. But that means there is no way to _send_ notifications from
/dev/xen/evtchn? All I can do there is read incoming events?
Jacob
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